CN219557201U - Connection structure of top spray arm - Google Patents

Abstract

The utility model relates to a dish washer technical field especially relates to a connection structure of top spray arm, including installing the top spray arm on the casing and being provided with the inner water pipe of joint, connect and have cup jointed the adapter sleeve, connect and the adapter sleeve effect in order to make top spray arm and casing connection, be provided with the through-hole on the casing, connect at least part setting in the through-hole, be provided with first annular piece on the joint, the adapter sleeve is provided with the second annular piece, and the diameter of first annular piece and second annular piece is greater than the aperture of through-hole, is provided with the sealing member between the upper surface of second annular piece and the lower surface of first annular piece, the peripheral part centre gripping of through-hole of casing is between sealing member and first annular piece, the lower surface of first annular piece is provided with the protruding piece, the corresponding position of casing is provided with the indent corresponding with protruding piece, protruding piece and indent cooperation are used for spacing the joint.

Description

Connection structure of top spray arm

Technical Field

The disclosure relates to the technical field of dish washers, in particular to a connection structure of a top spraying arm.

Background

With the development of society, more and more families begin to use dish-washing machine products, and dish-washing machines bring convenience to people and save time for people. The dish washer has the function of heating and sterilizing, can kill bacteria such as escherichia coli, staphylococcus aureus, hepatitis B virus and the like, and sometimes the bowl and the dish can be cleaned in a small position by hands without being cleaned. The dish washing machine not only cleans dishes in place, but also can save time more, and the whole process only needs a plurality of minutes, so that compared with the dish washing machine by hand, the dish washing machine can save a lot of time for users, and simultaneously can liberate hands for the users, so that the dish washing machine is deeply favored by the users.

The spray arm is an important component of the dish washer, and is generally arranged in the inner container of the dish washer, and is pushed by an internal circulating water flow system, and the spray arm rotates under the driving of water flow and sprays and washes tableware loaded in the inner container. The top (upper) spray arm is hung on a connecting pipeline of the liner, and the connecting pipeline provides a water source for the inner cavity of the top spray arm. Because the spray holes with the opposite rotation direction are arranged on the top (upper) spray arm, the rotation power of the top (upper) spray arm is generated simultaneously in the process of spraying water on the top (upper) spray arm.

The Chinese patent with the publication number of CN215838900U discloses an upper spray arm connecting structure for a cleaning machine and the cleaning machine, wherein the connecting structure comprises an upper spray arm and a water supply pipe, a water inlet of the upper spray arm is connected with a water outlet of the water supply pipe through a rotating assembly, the rotating assembly comprises a rotating sleeve and a positioning sleeve, a first assembly sleeve extending upwards around the water inlet is arranged on the top wall of the upper spray arm, the lower end of the positioning sleeve is mutually inserted and in interference fit with the first assembly sleeve, a retaining ring capable of propping against the rotating sleeve to axially limit the positioning sleeve is arranged at the top of the positioning sleeve, and a second assembly sleeve extending downwards and detachably connected with the rotating sleeve through a fastening structure is arranged at the water outlet of the water supply pipe. The utility model is convenient for assembly, the rotating support surface of the upper spray arm is a large contact surface between the rotating sleeve and the positioning sleeve, and the rotating stability of the upper spray arm is improved; the locating sleeve is in interference fit with the first assembling sleeve, and connection reliability of the locating sleeve and the first assembling sleeve is not easy to be influenced due to sediment accumulation, so that the upper spray arm is guaranteed to have good rotation stability all the time. However, the connection structure of the upper spray arm and the water supply pipe is complex, which results in relatively complicated and inconvenient installation and disassembly of the upper spray arm.

Disclosure of Invention

To the problem that exists among the prior art, this disclosure provides a connection structure of top spray arm, simple structure, simple to operate when the smooth and easy pivoted of top spray arm.

The technical scheme adopted by the present disclosure for solving the technical problems is as follows: a connection structure of a roof spray arm, comprising: install the top spray arm on the casing and be provided with the inner water pipe that connects, connect and cup jointed the adapter sleeve on, connect and the adapter sleeve effect in order to make top spray arm and casing be connected, be provided with the through-hole on the casing, connect at least partly to set up in the through-hole, be provided with first annular on the joint, the adapter sleeve is provided with the second annular, and the diameter of first annular is greater than the aperture of through-hole with the second annular, is provided with the sealing member between the upper surface of second annular and the lower surface of first annular, and the peripheral part centre gripping of through-hole of casing is between sealing member and first annular, the lower surface of first annular is provided with the protruding piece, the corresponding position of casing is provided with the indent corresponding with protruding piece, protruding piece and indent cooperate and are used for limiting the joint.

As a preferred embodiment, the outer circumferential wall of the joint connected with the connecting sleeve is provided with an external thread, and the inner circumferential wall of the connecting sleeve is provided with an internal thread, and the external thread and the internal thread are matched to connect the connecting sleeve with the joint.

As a preferred embodiment, the connecting sleeve is provided with a first clamping groove, the top spraying arm is provided with a first bulge, and the first clamping groove is matched with the first bulge so that the connecting sleeve is clamped with the top spraying arm.

Further, a first inclined plane is arranged on the first bulge, a second inclined plane corresponding to the first inclined plane is arranged at the lower end of the connecting sleeve, and the first inclined plane and the second inclined plane are arranged so that the first bulge can conveniently enter the first clamping groove or be detached from the first clamping groove.

As the preferred embodiment, the inner peripheral wall of the connecting sleeve is also provided with a second bulge, the second bulge is an annular bulge, so that the water outlet diameter is reduced, water can be directly sprayed into the inner cavity of the top spray arm, the water overflow amount of the water flowing from the joint of the top spray arm and the connecting sleeve is reduced, the water flow speed of the water sprayed by the top spray arm is further ensured, the flushing effect is improved, a gap is reserved between the second bulge and the lower end of the connector after the connecting sleeve is connected with the connector, and the connecting sleeve is prevented from being propped against the connecting sleeve after the connecting sleeve and the connector are screwed over.

As a preferred embodiment, the upper surface of the sealing element is provided with a first annular bulge and a second annular bulge, the central axis of the first annular bulge and the central axis of the second annular bulge are overlapped with the central axis of the sealing element, the outer diameter of the first annular bulge is smaller than the diameter of the through hole, the inner diameter of the second annular bulge is larger than the diameter of the through hole, the connecting sleeve is connected with the joint, the first annular bulge is attached to the lower surface of the first annular element, and the second annular bulge is attached to the shell.

The first annular bulge and the second annular bulge are arranged as elastic pieces, so that the deformation is easy, and the sealing performance is better. The diameter of the first annular bulge is smaller than that of the through hole, the diameter of the second annular bulge is larger than that of the through hole, after the connecting sleeve is connected with the connector, the through hole is arranged between the first annular bulge and the second annular bulge, the first annular bulge of the inner layer is sealed, the second annular bulge of the outer layer is sealed again, and the sealing effect is better under the condition that parts are not increased.

As the preferred embodiment, the lower surface of sealing member is provided with the annular protruding of third and the annular protruding of fourth, the bellied diameter of third is less than the bellied diameter of annular of fourth, the annular protruding setting of third is in the corresponding position department that the annular protruding is carried on the back of first, the annular protruding setting of fourth is in the corresponding position department that the annular protruding is carried on the back of second, the annular protruding diameter of third equals with the annular protruding diameter of first, the annular protruding diameter of fourth equals with the annular protruding diameter of second, and such setting makes mould simple structure, and the die sinking is with low costs, and the sealing member does not have positive and negative, simple to operate, and production efficiency is high. After the connecting sleeve is connected with the joint, the third annular bulge and the fourth annular bulge are attached to the upper surface of the second annular piece, and the arrangement of the third annular bulge and the fourth annular bulge enhances the sealing effect of the sealing piece and the second annular piece.

As the preferred embodiment, the lower surface of second annular piece is the inclined plane, and the distance of the outer edge of second annular piece lower surface to the sealing member is less than the distance of interior edge to the sealing member, and this kind of setting is convenient for use of tools such as pliers, spanner when installing and dismantling, and the upper surface of second annular piece is provided with annular groove, and the lower surface of second annular piece and the tank bottom parallel arrangement of annular groove, and the adapter sleeve is connected the back with the joint, and the cross section of the cavity that sealing member and annular groove enclose is triangle-shaped.

The lower surface of the second annular piece is parallel to the bottom of the annular groove, so that the thickness of each part of the second annular piece is kept consistent as much as possible, the forming is convenient, and the deformation in the use process can be prevented.

As a preferred embodiment, the first ring member and the joint are integrally formed, and the second ring member and the connecting sleeve are integrally formed.

As a preferred embodiment, the sealing member is an elastic member, and the first annular protrusion, the second annular protrusion, the third annular protrusion, and the fourth annular protrusion are integrally formed with the sealing member. The sealing element is an elastic element, so that the sealing effect is better.

Compared with the existing products, the beneficial effects of the present disclosure are: the lower surface of first ring spare is provided with protruding piece, and the corresponding position of casing is provided with the indent corresponding with protruding piece, and protruding piece cooperatees with the indent and is used for spacing to interior water pipe, and simple structure is when not needing additionally to increase spare part, effectively prevents that top spray arm from driving the adapter sleeve in pivoted in-process, and then drives interior water pipe and rotate, improves the stability of top spray arm work, and sealing member also fine play sealed effect simultaneously.

Drawings

The utility model will be described in further detail below in connection with the drawings and the preferred embodiments, but it will be appreciated by those skilled in the art that these drawings are drawn for the purpose of illustrating the preferred embodiments only and thus should not be taken as limiting the scope of the utility model. Moreover, unless specifically indicated otherwise, the drawings are merely schematic representations, not necessarily to scale, of the compositions or constructions of the described objects and may include exaggerated representations.

FIG. 1 is an exploded view of a connection structure of a roof boom of the present disclosure;

FIG. 2 is one of the structural schematic diagrams of a connection structure of a top spray arm of the present disclosure;

FIG. 3 is a second schematic structural view of a connection structure of a top spray arm according to the present disclosure;

FIG. 4 is a third schematic structural view of a connection structure of a top spray arm according to the present disclosure;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic diagram of a top spray arm connection structure of the present disclosure;

FIG. 7 is one of the schematic structural views of the connecting sleeve of the present disclosure;

FIG. 8 is a second schematic view of a connecting sleeve of the present disclosure;

FIG. 9 is a schematic structural view of a top spray arm of the present disclosure;

FIG. 10 is a schematic structural view of the joint of the present disclosure;

FIG. 11 is one of the cross-sectional views of a connection structure of a roof boom of the present disclosure;

FIG. 12 is a partial enlarged view at B in FIG. 11;

FIG. 13 is a second cross-sectional view of a connection structure of a roof arm of the present disclosure;

fig. 14 is a partial enlarged view at C in fig. 13.

Reference numerals illustrate:

1. an inner water pipe; 2. a housing; 3. a seal; 4. a second ring member; 5. a top spray arm; 6. connecting sleeves; 11. a joint; 12. a first ring member; 13. a protruding member; 51. a first protrusion; 61. a first clamping groove; 62. and a second protrusion.

Detailed Description

In order to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail, clearly and completely with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present disclosure.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

As shown in fig. 1 to 3, 6 and 10, an embodiment of the present disclosure provides a connection structure of a top spray arm, including: the top spraying arm 5 mounted on the shell 2 and the inner water pipe 1 provided with the joint 11 are sleeved with the connecting sleeve 6, the joint 11 and the connecting sleeve 6 act to enable the top spraying arm 5 to be connected with the shell 2, a through hole is formed in the shell 2, the joint 11 is at least partially arranged in the through hole, a first annular piece 12 is arranged on the joint 11, the connecting sleeve 6 is provided with a second annular piece 4, the diameters of the first annular piece 12 and the second annular piece 4 are larger than the aperture of the through hole, a sealing piece 3 is arranged between the upper surface of the second annular piece 4 and the lower surface of the first annular piece 12, the periphery of the through hole of the shell 2 is clamped between the sealing piece 3 and the first annular piece 12, and the clamping force is generated between the first annular piece 12 and the second annular piece 4. The lower surface of the first annular member 12 is provided with a protruding member 13, and the corresponding position of the housing 2 is provided with a recess corresponding to the protruding member 13. The protruding piece 13 is matched with the concave to limit the butt joint 11, so that the top spraying arm 5 is prevented from driving the connecting sleeve 6 in the rotating process, the inner water pipe 1 is further driven to rotate, and the working stability of the top spraying arm 5 is improved. Further, it should be noted that the recesses are here rather than holes, from which water may seep if the recesses are changed to holes. The first annular piece 12 and the joint 11 are integrally formed, water leakage is avoided, the second annular piece 4 and the connecting sleeve 6 are integrally formed, water leakage is avoided, and the stability of the integrally formed product is better.

Specifically, referring to fig. 4, 5, 7 and 9, a first clamping groove 61 is provided on the connecting sleeve 6, a first protrusion 51 is provided on the top spraying arm 5, and the first clamping groove 61 and the first protrusion 51 cooperate to clamp the connecting sleeve 6 and the top spraying arm 5. A plurality of inverted hooks are uniformly distributed below the connecting sleeve 6, and the first clamping groove 61 is a groove formed by the hooks. The first bulge 51 is provided with a first inclined plane, the lower end of the connecting sleeve 6 is provided with a second inclined plane corresponding to the first inclined plane, and the first inclined plane and the second inclined plane are arranged so that the first bulge 51 can conveniently enter the first clamping groove 61 or be detached from the first clamping groove 61. Preferably, the first protrusion 51 is an annular protrusion, and the first inclined surface is disposed on an upper edge of the annular protrusion.

Referring to fig. 8, in an embodiment of the present disclosure, an outer peripheral wall of the joint 11 connected to the connecting sleeve 6 is provided with an external thread, and an inner peripheral wall of the connecting sleeve 6 is provided with an internal thread, and the external thread and the internal thread cooperate to connect the connecting sleeve 6 and the joint 11. The inner peripheral wall of adapter sleeve 6 still is provided with second protruding 62, and second protruding 62 is annular protruding for the water outlet diameter diminishes, thereby makes rivers can directly spray to in the inner chamber of top spray arm 5, reduces the water yield that rivers overflowed from top spray arm 5 and adapter sleeve 6 junction, and then guarantees the rivers velocity of flow that top spray arm 5 sprayed, improves the washing effect. In addition, since the lower parts of the second protrusions 62 are directly connected to the first clamping grooves 61 arranged at intervals, the second protrusions 62 also function as reinforcing ribs. After the connecting sleeve 6 is connected with the joint 11, a gap is reserved between the second protrusion 62 and the lower end of the joint 11, so that the joint 11 is prevented from propping against the connecting sleeve 6 after the connecting sleeve 6 and the joint 11 are screwed over. The first annular part 12 is arranged above the external thread, the second annular part 4 is arranged above the connecting sleeve 6, and after the joint 11 is screwed with the connecting sleeve 6, the sealing part 3 and the shell 2 are just fixed between the first annular part 12 and the second annular part 4.

In some embodiments, the sealing element 3 is an elastic element, the upper surface and the lower surface of the sealing element are both plane, and annular grooves are formed on the lower surface of the first annular element 12 which is in contact with the upper surface of the sealing element 3, preferably, the number of the annular grooves is two, because the sealing element 3 is an elastic element, under the extrusion of the second annular element 4 and the first annular element 12, the sealing element 3 can slightly deform to play a role in sealing, if the water in the inner water pipe 1 leaks outwards, the leaked water can enter the annular grooves, and because the sealing element 3 is in an extrusion deformation state, the water in the annular grooves is difficult to permeate outwards again, so that a good sealing effect is achieved.

In some embodiments, as shown in fig. 11 to 12, the upper surface of the sealing member 3 is provided with a first annular protrusion and a second annular protrusion, the central axis of the first annular protrusion and the central axis of the second annular protrusion are both coincident with the central axis of the sealing member 3, the outer diameter of the first annular protrusion is smaller than the diameter of the through hole, the inner diameter of the second annular protrusion is larger than the diameter of the through hole, and after the connecting sleeve 6 is connected with the joint 11, the first annular protrusion is attached to the lower surface of the first annular member 12, and the second annular protrusion is attached to the lower surface of the housing 2. The outer diameter of the first annular bulge is smaller than the diameter of the through hole, the inner diameter of the second annular bulge is larger than the diameter of the through hole, after the connecting sleeve 6 is connected with the joint 11, the through hole is arranged between the first annular bulge and the second annular bulge, the first annular bulge of the inner layer is sealed, the second annular bulge of the outer layer is sealed again, and the sealing effect is better under the condition that parts are not added.

With continued reference to fig. 11 to 12, in some embodiments, the lower surface of the sealing member 3 is provided with a third annular protrusion and a fourth annular protrusion, the third annular protrusion and the fourth annular protrusion are elastic members, the diameter of the third annular protrusion is smaller than that of the fourth annular protrusion, the third annular protrusion is disposed at a position opposite to the first annular protrusion, the fourth annular protrusion is disposed at a position opposite to the second annular protrusion, the diameters of the third annular protrusion and the first annular protrusion are equal, and the diameters of the fourth annular protrusion and the second annular protrusion are equal. After the connecting sleeve 6 is connected with the joint 11, the third annular bulge and the fourth annular bulge are attached to the upper surface of the second annular piece 4, and the sealing effect of the sealing piece 3 and the second annular piece 4 is enhanced by the arrangement of the third annular bulge and the fourth annular bulge.

The first annular bulge, the second annular bulge, the third annular bulge and the fourth annular bulge are arranged as elastic pieces which are easy to deform, if water in the inner water pipe 1 leaks outwards, the leaked water can be blocked by the annular bulge and is difficult to permeate outwards, so that the sealing purpose is achieved. Preferably, the first annular protrusion, the second annular protrusion, the third annular protrusion and the fourth annular protrusion exist at the same time, the sealing element 3 is an elastic element, and the first annular protrusion, the second annular protrusion, the third annular protrusion and the fourth annular protrusion are integrally formed with the sealing element 3. The sealing element 3 can realize two sealing parts simultaneously, has better sealing effect without increasing parts, saves cost and is more convenient for installing fewer parts.

In particular, the lower surface of the second ring member 4 is beveled, and the distance from the outer edge of the lower surface of the second ring member 4 to the sealing member 3 is smaller than the distance from the inner edge to the sealing member 3, which facilitates the use of pliers, wrenches or the like during installation and removal.

In some embodiments, as shown in fig. 13 to 14, the upper surface of the second ring member 4 is provided with an annular groove, the lower surface of the second ring member 4 is parallel to the bottom of the annular groove, and after the connecting sleeve 6 is connected with the joint 11, the cross section of the cavity enclosed by the sealing member 3 and the annular groove is triangular. The lower surface of the second annular piece 4 is parallel to the bottom of the annular groove, so that the thickness of the second annular piece 4 is kept consistent as much as possible, the forming is convenient, deformation caused by uneven thickness in the using process is prevented, the friction contact between the second annular piece 4 and the sealing piece 3 is reduced due to the arrangement of the annular groove, and the friction force between the second annular piece 4 and the sealing piece 3 is reduced.

The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the utility model that follows may be better understood, and in order that the present utility model may be better understood. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. A connection structure of a roof spray arm, comprising: install top spray arm (5) on casing (2) and be provided with interior water pipe (1) of joint (11), joint (11) have cup jointed adapter sleeve (6), joint (11) and adapter sleeve (6) are used in order to make top spray arm (5) be connected with casing (2), are provided with the through-hole on casing (2), and joint (11) set up in the through-hole at least partially, be provided with first ring (12) on joint (11), adapter sleeve (6) are provided with second ring (4), and the diameter of first ring (12) and second ring (4) is greater than the aperture of through-hole, is provided with sealing member (3) between the upper surface of second ring (4) and the lower surface of first ring (12), and the through-hole peripheral portion centre gripping of casing (2) is between sealing member (3) and first ring (12), the lower surface of first ring (12) is provided with protruding piece (13), the corresponding position of casing (2) is provided with and protruding piece (13) is corresponding to concave in order to carry out the cooperation in concave joint (11).

2. A connection structure of a top spray arm according to claim 1, characterized in that the outer peripheral wall of the joint (11) connected with the connecting sleeve (6) is provided with an external thread, the inner peripheral wall of the connecting sleeve (6) is provided with an internal thread, and the external thread and the internal thread cooperate to connect the connecting sleeve (6) with the joint (11).

3. The connection structure of a top spraying arm according to claim 1, wherein the top spraying arm (5) is connected with the inner water pipe (1) through a connecting sleeve (6), and the top spraying arm (5) is clamped with the connecting sleeve (6).

4. A connection structure of a top spraying arm according to claim 3, characterized in that the connecting sleeve (6) is provided with a first clamping groove (61), the top spraying arm (5) is provided with a first protrusion (51), and the first clamping groove (61) and the first protrusion (51) cooperate to enable the connecting sleeve (6) to be clamped with the top spraying arm (5).

5. The connection structure of a top spraying arm according to claim 4, wherein the inner peripheral wall of the connecting sleeve (6) is further provided with a second protrusion (62), the second protrusion (62) is an annular protrusion, and a gap is reserved between the second protrusion (62) and the lower end of the joint (11) after the connecting sleeve (6) is connected with the joint (11).

6. The connection structure of a top spraying arm according to claim 1, characterized in that the lower surface of the second annular member (4) is an inclined surface, the distance from the outer edge of the lower surface of the second annular member (4) to the sealing member (3) is smaller than the distance from the inner edge to the sealing member (3), an annular groove is formed in the upper surface of the second annular member (4), the lower surface of the second annular member (4) is parallel to the groove bottom of the annular groove, and after the connecting sleeve (6) is connected with the joint (11), the cross section of a cavity surrounded by the sealing member (3) and the annular groove is triangular.

7. The connection structure of a top spraying arm according to claim 1 or 6, wherein a first annular protrusion and a second annular protrusion are arranged on the upper surface of the sealing member (3), the central axis of the first annular protrusion and the central axis of the second annular protrusion are coincident with the central axis of the sealing member (3), the outer diameter of the first annular protrusion is smaller than the diameter of the through hole, the inner diameter of the second annular protrusion is larger than the diameter of the through hole, the first annular protrusion is attached to the lower surface of the first annular member (12) after the connecting sleeve (6) is connected with the joint (11), and the second annular protrusion is attached to the housing (2).

8. The connection structure of a top spray arm according to claim 7, wherein a third annular protrusion and a fourth annular protrusion are provided on the lower surface of the sealing member (3), the diameter of the third annular protrusion is smaller than that of the fourth annular protrusion, the third annular protrusion is provided at a position opposite to the first annular protrusion, the fourth annular protrusion is provided at a position opposite to the second annular protrusion, the diameters of the third annular protrusion and the first annular protrusion are equal, and the diameters of the fourth annular protrusion and the second annular protrusion are equal.

9. The connection structure of a top spray arm according to claim 8, wherein the sealing member (3) is an elastic member, and the first annular protrusion, the second annular protrusion, the third annular protrusion, the fourth annular protrusion and the sealing member (3) are integrally formed.

10. A connection structure of a top spray arm according to claim 1, characterized in that the first ring part (12) and the joint (11) are integrally formed, and the second ring part (4) and the connecting sleeve (6) are integrally formed.