CN209863712U - Rotary connecting device and dish washing machine - Google Patents

Abstract

The utility model belongs to the technical field of the dish washer technique and specifically relates to a rotate connecting device and dish washer is related to. The rotary connecting device and the dishwasher have the advantages that: the dismouting is simple. The rotary connecting device comprises a first connecting piece, a second connecting piece, a rotating shaft and a limiting piece; a sliding groove is formed in the second connecting piece, and the length of the sliding groove is not less than that of the rotating shaft; the rotating shaft is positioned in the sliding groove, and one end of the rotating shaft is arranged on the first connecting piece after penetrating through the end face of one end of the sliding groove in the length direction; the limiting piece is arranged on the second connecting piece; and the limiting piece is configured to enable the rotating shaft and the second connecting piece to be locked along the length direction of the rotating shaft and the second connecting piece at opposite positions, so that one end of the rotating shaft, facing the first connecting piece, is always arranged on the first connecting piece. The device can directly dismantle first connecting piece from the second connecting piece, and needn't dismantle whole dish washer by in the cupboard, then just can lift off the screw that is used for fixed second connecting piece, dismantles the apron at last, has reduced the dismouting degree of difficulty.

Description

Rotary connecting device and dish washing machine

Technical Field

The utility model belongs to the technical field of the dish washer technique and specifically relates to a rotate connecting device and dish washer is related to.

Background

The existing top-opening integrated water tank type dish washing machine is sleeved on an existing water tank, and a cover plate is installed at the top of the water tank to seal a washing space. The apron adopts the flush mounting mode to install on the step edge of basin, is connected through the pivot between the cell body of apron and basin usually, specifically is: the step of cell body is followed and is equipped with the pivot seat, both ends correspondence is provided with the trompil that holds the damping pivot about the apron, the damping pivot is arranged in this trompil, wherein, the terminal surface of pivot seat towards the damping pivot is provided with the axle core hole, the axle core of damping pivot can stretch into in the axle core hole of pivot seat, during the installation, at first with the apron, the damping pivot is installed with the pivot seat, later by the lower bottom on step edge upwards penetrate the screw, fix the pivot seat on the step edge, in order to prevent that the apron from dropping.

However, this type of connection has difficulties in mounting and dismounting. The cover plate is not convenient to be disassembled because the dish washer is firstly disassembled from the whole inside of the cabinet when the cover plate is disassembled, and then the screw for fixing the rotating shaft seat can be disassembled.

Therefore, the cover plate of the existing water tank type dish washing machine has the technical problem of inconvenient disassembly and assembly.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems, and an object of the present invention is to provide a rotary connecting device and a dishwasher, which have the advantages of: the dismouting is simple.

For realizing the purpose of the utility model, the following technical proposal is adopted:

in a first aspect, an embodiment of the present invention provides a rotating connection device, which includes a first connection member, a second connection member, a rotating shaft, and a limiting member; a sliding groove is formed in the second connecting piece, and the length of the sliding groove is not less than that of the rotating shaft; the rotating shaft is positioned in the sliding groove, and one end of the rotating shaft penetrates through the end face of one end of the sliding groove in the length direction and then is installed on the first connecting piece; the limiting piece is arranged on the second connecting piece; and the limiting piece is configured to enable the rotating shaft and the second connecting piece to be locked along the length direction of the rotating shaft and the second connecting piece at opposite positions, so that one end of the rotating shaft, facing the first connecting piece, is always installed on the first connecting piece.

With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein a limiting hole is formed in a side surface of the sliding groove in the length direction; the limiting piece penetrates through the limiting hole and is installed on the rotating shaft.

With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the limiting member includes a spring, the spring is located in the sliding groove, one end of the spring abuts against one end of the rotating shaft, which is away from the first connecting member, and the other end of the spring abuts against a groove wall of the sliding groove; and the spring is configured to enable the rotating shaft to always have a movement trend close to the first connecting piece.

With reference to the first aspect, embodiments of the present invention provide a third possible implementation manner of the first aspect, wherein the limiting member includes an assembling block; an opening is formed in the side face of the sliding groove in the length direction; the assembling block penetrates through the opening and extends into the sliding groove; the assembling block is abutted against one end of the rotating shaft, which is far away from the first connecting piece.

With reference to the first aspect and the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the limiting member further includes a decoration cover, and the decoration cover is mounted on the second connecting member in a manner of covering the opening; one side of the decorative cover facing the opening is protruded to form the assembling block matched with the opening.

With reference to the first aspect, embodiments of the present invention provide a fifth possible implementation manner of the first aspect, where the rotating shaft includes a shaft core and a shaft sleeve; one end of the shaft core is mounted on the first connecting piece, and the other end of the shaft core is rotatably mounted in the shaft sleeve; the shaft sleeve is arranged in the sliding groove.

With reference to the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein an opening is formed in a side surface of the sliding groove in the length direction; and a flange is arranged on the outer side of the shaft sleeve and penetrates through the opening.

In combination with the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein a mounting hole is formed in the first connecting element, and the rotating shaft deviates from one end of the second connecting element is installed in the mounting hole.

With reference to the first aspect and the seventh possible implementation manner of the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, wherein a clamp is sleeved on an end of the rotating shaft away from the second connecting member, and the clamp is installed in the installation hole; a plurality of convex ribs are arranged on the outer side surface of the clamp piece; and a concave part matched with the convex rib is arranged on the hole wall of the mounting hole.

In a second aspect, an embodiment of the present invention provides a dishwasher, which includes a cover plate, a tank body, and a rotating connecting device as described in the first aspect; the cover plate is formed into the first connector; the second connecting piece is arranged on the peripheral wall of the groove body.

Technical scheme more than combining, the utility model discloses following beneficial effect has:

a rotary connecting device comprises a first connecting piece, a second connecting piece, a rotating shaft and a limiting piece; a sliding groove is formed in the second connecting piece, and the length of the sliding groove is not less than that of the rotating shaft; the rotating shaft is positioned in the sliding groove, and one end of the rotating shaft is arranged on the first connecting piece after penetrating through the end face of one end of the sliding groove in the length direction; the limiting piece is arranged on the second connecting piece; and the limiting piece is configured to enable the rotating shaft and the second connecting piece to be locked along the length direction of the rotating shaft and the second connecting piece at opposite positions, so that one end of the rotating shaft, facing the first connecting piece, is always arranged on the first connecting piece.

When the rotating connecting device is installed, the rotating shaft is pushed into the sliding groove, the first connecting piece and the second connecting piece are placed at the corresponding installation positions, the limiting piece or other tools are utilized to stretch into the sliding groove, the end of the rotating shaft, deviating from the first connecting piece, is pushed, the rotating shaft is close to the first connecting piece and stretches into the first connecting piece, and therefore the rotating shaft abuts against the first connecting piece to be connected with the first connecting piece and the second connecting piece. In order to prevent the rotating shaft from separating from the first connecting piece, the limiting piece is inserted into the sliding groove and is abutted against one end of the rotating shaft, which is far away from the first connecting piece.

When the rotating connecting device is disassembled, the limiting part is pulled out, the limiting part or other tools are utilized to stretch into the sliding groove, one end of the rotating shaft, which is deviated from the first connecting piece, is pushed, the rotating shaft is far away from the first connecting piece, and therefore the first connecting piece and the second connecting piece are separated.

The utility model provides a rotating connecting device's simple structure, pivot and locating part are installed to the equal symmetry in both ends of first connecting piece and second connecting piece, and foretell rotating connecting device need not dismantle the second connecting piece at the in-process of installation with dismantling first connecting piece, and the dismouting is simple, can not damage the part at the in-process of installation with the dismantlement, has prolonged the life of part.

The dishwasher of the second aspect of the present invention has the same advantageous effects as the rotary connecting device of the first aspect. Moreover, when the cover plate needs to be disassembled and assembled, the cover plate can be directly disassembled from the second connecting piece, the dishwasher does not need to be integrally disassembled from the cabinet, then the screw used for fixing the second connecting piece can be disassembled, and finally the cover plate is disassembled, so that the disassembling and assembling difficulty of the cover plate is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a rotary connection device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a rotary connection device according to an embodiment of the present invention;

fig. 3 is a second schematic structural view of a limiting member in the rotating connecting device according to the embodiment of the present invention;

fig. 4 is a schematic view of a third structure of a limiting member in the rotating connecting device according to the embodiment of the present invention;

fig. 5 is another schematic structural diagram of a mounting block in the rotary connecting device according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a second connecting member in the rotary connecting device according to the embodiment of the present invention;

fig. 7 is a schematic view illustrating an installation of the clamp in the rotary connecting device according to the embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first connecting member in a rotary connecting device according to an embodiment of the present invention;

fig. 9 is a schematic view illustrating another installation of the clamp member in the rotary connecting device according to the embodiment of the present invention;

fig. 10 is a schematic structural view of a decorative cover in the rotary connecting device according to an embodiment of the present invention;

fig. 11 is a schematic view illustrating an installation of a decorative cover in the rotary connecting device according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a dishwasher according to an embodiment of the present invention.

Icon: 100-a first connector; 110-mounting holes; 120-fabrication holes; 130-a cap; 200-a second connector; 210-a chute; 211-an opening; 212-a limiting hole; 300-a rotating shaft; 310-an axial core; 320-shaft sleeve; 321-a flange; 400-a stop; 500-a clamp; 510-ribs; 600-a decorative cover; 610-an assembly block; 700-a trough body; 800-a spring; 900-cover plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The following describes embodiments 1-2 according to the present invention, and an overall structure of a rotary joint device and a dishwasher.

The existing top-opening integrated water tank type dish washing machine is sleeved on an existing water tank, and a cover plate is installed at the top of the water tank to seal a washing space. The apron adopts the flush mounting mode to install on the step edge of basin, is connected through the pivot between the cell body of apron and basin usually, specifically is: the step of cell body is followed and is equipped with the pivot seat, both ends correspondence is provided with the trompil that holds the damping pivot about the apron, the damping pivot is arranged in this trompil, wherein, the terminal surface of pivot seat towards the damping pivot is provided with the axle core hole, the axle core of damping pivot can stretch into in the axle core hole of pivot seat, during the installation, at first with the apron, the damping pivot is installed with the pivot seat, later by the lower bottom on step edge upwards penetrate the screw, fix the pivot seat on the step edge, in order to prevent that the apron from dropping.

However, this type of connection has difficulties in mounting and dismounting. The cover plate is not convenient to be disassembled because the dish washer is firstly disassembled from the whole inside of the cabinet when the cover plate is disassembled, and then the screw for fixing the rotating shaft seat can be disassembled.

Example 1

In contrast, the present embodiment provides a rotary joint apparatus.

Referring to fig. 1-2, the rotating connecting device includes a first connecting member 100, a second connecting member 200, a rotating shaft 300 and a limiting member 400; the second connecting piece 200 is provided with a sliding groove 210, and the length of the sliding groove 210 is not less than that of the rotating shaft 300; the rotating shaft 300 is located in the sliding groove 210, and one end of the rotating shaft 300 passes through an end surface of one end of the sliding groove 210 in the length direction and is then installed on the first connecting member 100; the limiting member 400 is mounted on the second connecting member 200; the limiting member 400 is configured to lock the relative positions of the rotating shaft 300 and the second connecting member 200 along the length direction thereof, so that the end of the rotating shaft 300 facing the first connecting member 100 is always mounted on the first connecting member 100.

When the rotating connection device is installed, the rotating shaft 300 is pushed into the sliding groove 210, the first connection piece 100 and the second connection piece 200 are placed at corresponding installation positions, and the limiting piece 400 or other tools are extended into the sliding groove 210 to push the end of the rotating shaft 300 away from the first connection piece 100, so that the rotating shaft 300 is close to the first connection piece 100 and is extended into the first connection piece 100, and abuts against the first connection piece 100 to connect the first connection piece 100 and the second connection piece 200. In order to prevent the rotating shaft 300 from separating from the first connecting member 100, the limiting member 400 is inserted into the sliding groove 210, and the limiting member 400 abuts against an end of the rotating shaft 300 away from the first connecting member 100.

When the rotating connection device is disassembled, the limiting member 400 is pulled out, and the limiting member 400 or other tools are inserted into the sliding groove 210 to push the end of the rotating shaft 300 away from the first connection member 100, so that the rotating shaft 300 is far away from the first connection member 100, and the first connection member 100 and the second connection member 200 are separated.

The utility model provides a rotating connecting device's simple structure, pivot 300 and locating part 400 are installed to the equal symmetry in both ends of first connecting piece 100 and second connecting piece 200, and foretell rotating connecting device need not dismantle second connecting piece 200 at the in-process of installation with dismantling first connecting piece 100, and the dismouting is simple, can not damage the part at the in-process of installation with the dismantlement, has prolonged the life of part.

Moreover, when the present embodiment is applied to a dishwasher, and when the cover plate 900 needs to be disassembled, the cover plate 900 can be directly disassembled from the second connector 200 without disassembling the dishwasher integrally from the inside of the cabinet, and then the screw for fixing the second connector 200 can be disassembled, and finally the cover plate 900 is disassembled, thereby reducing the difficulty of disassembling and assembling the cover plate 900.

Specifically, the first connector 100 is provided with a mounting hole 110, and one end of the rotating shaft 300 facing away from the second connector 200 is mounted in the mounting hole 110. The sliding grooves 210 are formed at both ends of the second connecting member 200, and both ends of the first connecting member 100 are connected to both ends of the second connecting member 200 through the rotating shaft 300.

There are various forms of the sliding groove 210, and several embodiments will be listed below:

first embodiment of chute 210: referring to fig. 1 and 6, an opening 211 is formed on a side surface of the sliding slot 210 in the length direction, and the limiting member 400 or other tools can move in the opening 211 along the length direction of the rotating shaft 300 and push an end of the rotating shaft 300 away from the first connecting member 100, so that the rotating shaft 300 approaches the first connecting member 100 and extends into the first connecting member 100, and abuts against the first connecting member 100 to connect the first connecting member 100 and the second connecting member 200.

Second embodiment of chute 210: at least two protrusions are arranged at the top of the second connecting piece 200, and a gap is formed between the two protrusions; the sliding groove 210 is opened on the protrusion. The limiting member 400 or other tools may extend into the sliding groove 210 from the gap to push the end of the rotating shaft 300 away from the first connecting member 100, so that the rotating shaft 300 approaches the first connecting member 100 and extends into the first connecting member 100, and abuts against the first connecting member 100 to connect the first connecting member 100 and the second connecting member 200.

There are various structures of the limiting member 400, and several embodiments will be listed below:

first embodiment of the limiting member 400: referring to fig. 1 and 2, a limiting hole 212 is formed on a side surface of the sliding groove 210 in the length direction; the limiting member 400 is mounted on the rotating shaft 300 through the limiting hole 212. The distance between the limiting hole 212 and the end of the sliding groove 210 facing the first connecting member 100 is smaller than the length of the rotating shaft 300, and when the limiting member 400 is installed in the limiting hole 212, the limiting member 400 abuts against the end of the rotating shaft 300 away from the first connecting member 100, so that the limiting member 400 locks the rotating shaft 300 to form the rotating shaft 300, and the rotating shaft 300 is always connected with the first connecting member 100. The limiting member 400 may be configured as a bolt, a pin, or other structures capable of performing the above-mentioned functions.

Second embodiment of the limiting member 400: referring to fig. 3, the position-limiting member 400 includes a spring 800, the spring 800 is located in the sliding slot 210, one end of the spring 800 abuts against one end of the rotating shaft 300 away from the first connecting member 100, and the other end of the spring 800 abuts against a slot wall of the sliding slot 210; and the spring 800 is configured to always make the rotation shaft 300 have a tendency to move close to the first connector 100. When the first connecting member 100 is installed, the spring 800 is compressed and deformed, the rotating shaft 300 can extend into the sliding groove 210 at this time, along with the position change of the first connecting member 100, the rotating shaft 300 corresponds to the position of the installation hole 110, and under the restoring force action of the spring 800, the rotating shaft 300 is close to the installation hole 110 and extends into the installation hole 110. When disassembling, another tool can be used to pull the shaft 300 from the opening 211, so that the shaft 300 overcomes the elastic force of the spring 800 and exits the mounting hole 110. But not limited to this, also can set up the fixed block at the one end that deviates from pivot 300 of spring 800, the fixed block is under assembled state, can offset and compress spring 800 with the one end that deviates from pivot 300 of spring 800 for spring 800 drives pivot 300 and stretches into in the mounting hole 110. During the installation, spring 800 and pivot 300 all are located spout 210, correspond the position of mounting hole 110 with the position of pivot 300, and the installation fixed block, the fixed block offsets and compresses spring 800 with the one end that deviates from pivot 300 of spring 800 for spring 800 drives pivot 300 and stretches into in the mounting hole 110. It is also possible to arrange that one end of the spring 800 is connected to the rotation shaft 300 at one end of the second connector 200 and the other end of the spring 800 is connected to the rotation shaft 300 at the other end of the second connector 200. During installation, the two rotating shafts 300 are respectively installed in the sliding grooves 210, then the spring 800 is installed between the two rotating shafts 300, and at the moment, the spring 800 is in a compressed state, can drive the two rotating shafts 300 to move oppositely, and respectively extends into the corresponding installation holes 110. During disassembly, a worker uses a tool to compress the spring 800, so that the two rotating shafts 300 can move in the sliding grooves 210 under the action of the spring 800 and are separated from the first connecting piece 100.

Third embodiment of the limiting member 400: referring to fig. 4 and 11, the position limiter 400 includes an assembling block 610; an opening 211 is formed on the side surface of the sliding groove 210 in the length direction; the assembling block 610 extends into the sliding groove 210 through the opening 211; the fitting block 610 abuts an end of the rotation shaft 300 facing away from the first connector 100. The fitting block 610 is mounted on the second connector 200. Wherein, the assembling block 610 can be set to a column structure capable of passing through the opening 211, and the assembling block 610 can be detachably connected with the second connector 200, such as clamping, threaded connection, gluing, etc. In addition, the limiting member 400 further includes a decoration cover 600, and the decoration cover 600 is mounted on the second connection member 200 in a manner of covering the opening 211; a side of the deco-cover 600 facing the opening 211 is protruded to form a fitting block 610. The decoration cover 600 is detachably connected with the second connector 200, such as clamping, screw connection, glue connection and the like. The decorative cover 600 and the assembling block 610 may be configured as an integral structure (see fig. 5 and 10), or may be configured as a separate structure (see fig. 4).

In addition, referring to fig. 1, the shaft 300 includes a shaft core 310 and a shaft sleeve 320; one end of the shaft core 310 is mounted on the first connecting member 100, and the other end of the shaft core 310 is rotatably mounted in the shaft sleeve 320; the bushing 320 is installed in the chute 210. The shaft core 310 can rotate in the shaft sleeve 320, and when the first connecting piece 100 rotates relative to the second connecting piece 200, the shaft core 310 rotates in the shaft sleeve 320, so that the abrasion of the second connecting piece 200 can be reduced, and the service life of the second connecting piece 200 can be prolonged. In addition, lubricant can be added into the shaft sleeve 320 to improve the smooth rotation of the shaft core 310 in the shaft sleeve 320, thereby improving the smooth operation of the rotary connecting device of the present embodiment.

Further, an opening 211 is opened on a side surface of the sliding groove 210 in the length direction; a flange 321 is provided on the outside of the sleeve 320, the flange 321 passes through the opening 211, and the opening 211 can circumferentially confine the sleeve 320. The limiting element 400 may abut against an end of the shaft sleeve 320 that is away from the shaft core 310 (see fig. 2), and the limiting element 400 may also abut against the flange 321 (see fig. 11).

In addition, referring to fig. 5 or fig. 7, a clamp 500 is sleeved on an end of the rotating shaft 300 away from the second connecting member 200, and the clamp 500 is installed in the installation hole 110; a plurality of ribs 510 are provided on the outer side of the jaw 500; a recess portion fitted with the rib 510 is provided on the hole wall of the mounting hole 110. In use, the jaw 500 rotates along with the first connector 100, and the rotating shaft 300 installed inside the jaw 500 rotates inside the jaw 500. The clamp 500 is made of a metal material, which can increase the strength of the first connector 100. The clamp 500 may be installed between the first connector 100 and the rotating shaft 300 (see fig. 8), or may be installed at an end of the first connector 100 (see fig. 9). When the clamp 500 is disposed at the end of the first connector 100, the cap 130 is required to cover the clamp 500.

In this embodiment, a groove is formed in the middle of the bottom of the first connecting member 100, a protrusion is formed on the top of the second connecting member 200, the protrusion is located in the groove, and the sliding groove 210 is formed on the protrusion. But not limited thereto, it is also possible that both ends of the first connector 100 are connected to the rotation shaft 300, both ends of the second connector 200 form a protrusion, the first connector 100 is installed between the protrusions at both ends of the second connector 200, and the sliding groove 210 is formed at the protrusion.

In this embodiment, the sliding groove 210 is disposed on the second connecting member 200, and the mounting hole 110 is disposed on the first connecting member 100. But not limited thereto, it is also possible to arrange the sliding groove 210 on the first connector 100 and the mounting hole 110 on the second connector 200.

The rotary connecting device can be applied to a plurality of fields such as dish washing machines, refrigerators, packing boxes and the like.

Example 2

The present embodiment provides a dishwasher.

Referring to fig. 12, the dishwasher includes a cover 900, a tank 700, and a rotation connection device as described in embodiment 1; the cap plate 900 is formed as the first connector 100; the second connector 200 is mounted to the circumferential wall of the tank body 700.

When the dishwasher is installed, the rotating shaft 300 is pushed into the sliding groove 210, the cover plate 900 and the second connecting piece 200 are placed at the corresponding installation positions, the limiting piece 400 or other tools are used for extending into the sliding groove 210, and one end of the rotating shaft 300 departing from the cover plate 900 is pushed, so that the rotating shaft 300 is close to the cover plate 900 and extends into the cover plate 900, and abuts against the cover plate 900 to connect the cover plate 900 and the second connecting piece 200. In order to prevent the rotating shaft 300 from being separated from the cover plate 900, the limiting member 400 is inserted into the sliding groove 210, and the limiting member 400 abuts against an end of the rotating shaft 300 away from the cover plate 900.

When the rotating connection device is disassembled, the limiting member 400 is pulled out, the limiting member 400 or other tools are used to extend into the sliding groove 210, and the end of the rotating shaft 300 departing from the cover plate 900 is pushed, so that the rotating shaft 300 is far away from the cover plate 900, and the cover plate 900 is separated from the second connection member 200.

The utility model provides a simple structure of dish washer, pivot 300 and locating part 400 are installed to the equal symmetry in both ends of apron 900 and second connecting piece 200, foretell rotation connecting device is at the installation and the in-process of dismantling apron 900, need not dismantle second connecting piece 200, can directly dismantle apron 900 from second connecting piece 200, and needn't pull down dish washer by whole in the cupboard, then just can lift the screw that is used for fixed second connecting piece 200 off, dismantle apron 900 at last, the dismouting degree of difficulty of apron 900 has been reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A rotary connecting device is characterized by comprising a first connecting piece, a second connecting piece, a rotating shaft and a limiting piece;

a sliding groove is formed in the second connecting piece, and the length of the sliding groove is not less than that of the rotating shaft;

the rotating shaft is positioned in the sliding groove, and one end of the rotating shaft penetrates through the end face of one end of the sliding groove in the length direction and then is installed on the first connecting piece;

the limiting piece is arranged on the second connecting piece; and the limiting piece is configured to enable the rotating shaft and the second connecting piece to be locked along the length direction of the rotating shaft and the second connecting piece at opposite positions, so that one end of the rotating shaft, facing the first connecting piece, is always installed on the first connecting piece.

2. The rotating connecting device according to claim 1, wherein a limiting hole is formed in a side surface of the sliding groove in the length direction; the limiting piece penetrates through the limiting hole and is installed on the rotating shaft.

3. The rotating connecting device according to claim 1, wherein the limiting member comprises a spring, the spring is located in the sliding groove, one end of the spring abuts against one end of the rotating shaft away from the first connecting member, and the other end of the spring abuts against a groove wall of the sliding groove; and the spring is configured to enable the rotating shaft to always have a movement trend close to the first connecting piece.

4. The rotating connection device of claim 1, wherein the retaining member comprises an assembly block; an opening is formed in the side face of the sliding groove in the length direction; the assembling block penetrates through the opening and extends into the sliding groove; the assembling block is abutted against one end of the rotating shaft, which is far away from the first connecting piece.

5. The rotatable connection device of claim 4, wherein the retaining member further comprises a decorative cover mounted to the second connection member in a manner covering the opening;

one side of the decorative cover facing the opening is protruded to form the assembling block matched with the opening.

6. The rotating coupling device of claim 1, wherein the shaft includes a core and a sleeve;

one end of the shaft core is mounted on the first connecting piece, and the other end of the shaft core is rotatably mounted in the shaft sleeve;

the shaft sleeve is arranged in the sliding groove.

7. The rotating connecting device according to claim 6, wherein an opening is opened on a side surface in a length direction of the chute;

and a flange is arranged on the outer side of the shaft sleeve and penetrates through the opening.

8. The rotatable connection as claimed in claim 1, wherein a mounting hole is provided in the first connection member, and an end of the shaft facing away from the second connection member is mounted in the mounting hole.

9. The rotating connecting device according to claim 8, wherein a clamp is sleeved on one end of the rotating shaft away from the second connecting piece, and the clamp is installed in the installation hole;

a plurality of convex ribs are arranged on the outer side surface of the clamp piece; and a concave part matched with the convex rib is arranged on the hole wall of the mounting hole.

10. A dishwasher, comprising a lid, a sump, and a rotatable connection as claimed in any one of claims 1 to 9;

the cover plate is formed into the first connector;

the second connecting piece is arranged on the peripheral wall of the groove body.