CN109538865B - Pipeline connection structure and dish washer - Google Patents
Pipeline connection structure and dish washer Download PDFInfo
- Publication number
- CN109538865B CN109538865B CN201811647377.0A CN201811647377A CN109538865B CN 109538865 B CN109538865 B CN 109538865B CN 201811647377 A CN201811647377 A CN 201811647377A CN 109538865 B CN109538865 B CN 109538865B
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- Prior art keywords
- latch
- circumferential
- snap
- connecting end
- clamping groove
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/24—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action
- F16L37/244—Couplings of the quick-acting type in which the connection is made by inserting one member axially into the other and rotating it to a limited extent, e.g. with bayonet action the coupling being co-axial with the pipe
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
Abstract
The invention discloses a pipeline connecting structure and a dish washing machine, wherein the pipeline connecting structure comprises a rotary buckle connecting end and a clamping groove connecting end which are in butt joint, and the rotary buckle connecting end is sleeved outside the clamping groove connecting end and can be pulled out of the clamping groove connecting end through circumferential rotation. Compared with the existing pipeline connecting structure relying on clamp fastening, the pipeline connecting structure is a detachable and reusable pipeline connecting structure, a connecting mode of two mutually butted joint pipe pipelines respectively provided with a rotating buckle connecting end and a clamping groove connecting end is adopted, and the connecting buckle can be unlocked by the two mutually connected joint pipes in a circumferential rotating mode. Therefore, through the optimized structure of the clamp-free pipeline, the number of parts is reduced, the assembly process is simplified, and the waste of materials is avoided, so that the effect of reducing the production cost is achieved.
Description
Technical Field
The invention relates to the field of pipe joints, in particular to a pipeline connecting structure and a dish washing machine.
Background
The attachment and sealing of the internal drain of existing dishwashers to the respirator and cup typically relies on the use of a clip. The use of the clamp not only increases the assembly process in the assembly process, but also consumes certain production cost due to the use of the clamp. In addition, in the maintenance process in later stage, the clamp pincers are generally required to be utilized to destructively dismantle the clamp, so that the clamp cannot be reused, and waste is serious.
Disclosure of Invention
The invention aims to provide a clamp-free type pipeline connecting structure capable of being disassembled and replaced.
In order to achieve the above object, the present invention provides a pipe connection structure, which includes a rotation buckle connection end and a slot connection end that are butted, the rotation buckle connection end is sleeved outside the slot connection end and can be pulled out from the slot connection end by circumferential rotation,
the clamping groove connecting end comprises a front end guide pipe section and a rear end annular groove pipe section, wherein an annular groove is formed in the peripheral portion of the pipe in the circumferential direction, a plurality of clamping groove portions and a plurality of clamping tooth withdrawing portions are alternately arranged in the circumferential direction on the annular groove, a plurality of inserting sliding rail portions which are guided to slide into the clamping groove portions in a one-to-one corresponding mode and a plurality of pulling sliding rail portions which are guided to slide out the clamping tooth withdrawing portions in a one-to-one corresponding mode are arranged on the peripheral portion of the front end guide pipe section,
the rotary buckle connecting end comprises a plurality of buckles arranged at intervals along the circumferential direction, the buckles are formed with clamping teeth which radially and inwards extend and are used for being in buckle fit with the clamping groove parts,
wherein, follow pipeline connection structure's butt joint direction, the latch can follow grafting slide rail portion slides in the draw-in groove portion with the joint in draw-in groove portion, and the latch can follow the circumferencial direction is followed draw-in groove portion circumference is rotatory extremely the latch escape portion, and follows correspondingly draw out slide rail portion and extract.
Preferably, the circumferential direction includes a first circumferential direction and a second circumferential direction opposite in direction, and both ends of the circumferential direction of the latch portion are respectively provided with a screw-out guide portion for guiding the screw-out toward the latch withdrawing portion along the first circumferential direction and the second circumferential direction.
Preferably, the two circumferential ends of the latch withdrawing portion are respectively provided with a screwing-out limiting portion for stopping the rotation of the latch towards the latch portion along the circumferential direction.
Preferably, the circumferential direction includes first circumferential direction and second circumferential direction opposite in direction, falls into the latch portion can follow first circumferential direction unscrews the latch portion, the circumferential end of latch portion is formed with the backstop the latch is along the spacing portion of unscrewing that the second circumferential direction unscrewed.
Preferably, along circumferencial direction, the one end of draw-in groove portion is equipped with the spacing portion of back-out, and the other end is equipped with and is used for following the back-out guide part that the first circumferencial direction was back-out.
Preferably, the screwing-out limiting part is a limiting boss protruding out of the bottom wall of the annular groove, and the screwing-out guide part protrudes out of the bottom wall of the annular groove and is formed into an ascending guide inclined surface facing the latch withdrawing part in a guide sliding mode.
Preferably, the surface of the insertion slide rail portion is formed with a rising guide slope from front to back, and the surface of the withdrawal slide rail portion is formed with a rising guide slope from back to front from the surface of the latch withdrawing portion.
Preferably, an anti-falling step surface is formed between the insertion slide rail part and the clamping groove part to prevent the clamping teeth from being separated from the clamping groove part.
Preferably, the circumferential sides of the plugging slide rail part and the pulling slide rail part are provided with circumferential side guide wing parts protruding in the radial direction, the circumferential side guide wing parts are arranged to enable the plugging slide rail part and the pulling slide rail part to be in a chute shape, the chute opening of the plugging slide rail part is gradually closed from the front to the back, and the chute opening of the pulling slide rail part is gradually closed from the back to the front.
Preferably, the rotary buckle connecting end comprises an end annular flange protruding outwards in the radial direction, and the plurality of buckles extend out at intervals in the circumferential direction and are arranged on the circumferential portion of the end annular flange, wherein each buckle comprises a buckle connecting end connected with the end annular flange and a buckle extending end provided with the clamping teeth, and the buckle extending end can be bent and deformed relative to the buckle connecting end so that the clamping teeth can be clamped on the clamping groove portion.
Preferably, said rotary snap connection end comprises a snap end nipple projecting axially from a front end face of said end annular flange, said snap end nipple being arranged radially inside a plurality of said snaps.
Preferably, the rotary buckle connecting end is provided with a sleeved waterproof sealing ring, and the sleeved waterproof sealing ring is sleeved on a buckle end inner connecting pipe extending out of the front end face of the end annular flange along the axial direction.
Preferably, a sealing ring crimping ring surface is formed at the front edge part of the inner pipe wall of the clamping groove connecting end, and the sealing ring crimping ring surface is crimped on the sleeved waterproof sealing ring.
In addition, the invention also provides a dishwasher which comprises the pipeline connecting structure.
Therefore, the pipeline connecting structure is a clamping-free connecting mode, and the pipeline connecting structure is fixed or detached, only needs simple plugging and pulling and has the characteristics of repeated operation and use. Therefore, through the optimized structure of the clamp-free pipeline, the number of parts is reduced, the assembly process is simplified, and the waste of materials is avoided, so that the effect of reducing the production cost is achieved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 and 2 are perspective views illustrating a joint pipe according to an embodiment of the present invention, wherein the joint pipe is a single-ended connection pipe having a single-turn bayonet coupling end;
fig. 3 is a perspective view illustrating a joint pipe according to an embodiment of the present invention, wherein the joint pipe is a single-ended connection pipe having a double-twist jaw connection end;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a right side view of FIG. 3;
FIG. 6 is a perspective view of a connector tube having a swivel snap connection end according to an embodiment of the present invention;
FIG. 7 is a perspective view of a connector tube with a rotating snap connection end having a waterproof sealing ring therein according to an embodiment of the present invention;
FIG. 8 illustrates a perspective view of a pipe connection structure, and a respirator and an internal drain pipe connected thereto by the pipe connection structure, according to an embodiment of the present invention;
FIG. 9 is an enlarged fragmentary view of encircled portion I of FIG. 8;
FIG. 10 is a cross-sectional view of FIG. 8;
FIG. 11 is an enlarged partial view of encircled portion M in FIG. 10; and
fig. 12 is a sectional view of a pipe coupling structure according to an embodiment of the present invention.
Description of the reference numerals
1 clamping groove part 2 screwing-out limiting part
3 screw-out guide part 4 latch withdrawing part
5 inserting slide rail part 6 pulling slide rail part
7 anti-drop step surface 8 peripheral side guide wing part
9 sealing ring crimping ring surface 10 end ring flange
11 buckle 12 latch
13 socket joint waterproof sealing ring 14 buckle end inner connecting pipe
600 respirator 100 front end guide tube section
31 stopping step surface 200 rear end ring groove pipe section
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like are generally described with respect to the orientation shown in the drawings or the positional relationship of the components with respect to each other in the vertical, or gravitational direction.
Aiming at the problems that in the existing dish washing machine, a fixing and sealing mode of a hoop needs to be arranged between an inner drain pipe, a respirator and a water cup, and the hoop cannot be reused once, so that waste is caused, the invention provides a novel pipeline connecting structure, as shown in figures 8 to 12, the pipeline connecting structure comprises a rotary buckle connecting end and a clamping groove connecting end which are in butt joint, and the rotary buckle connecting end is sleeved outside the clamping groove connecting end and can be pulled out from the clamping groove connecting end through circumferential rotation.
Therefore, the pipeline connecting structure is a detachable and reusable pipeline connecting structure, a connecting mode of two joint pipe pipelines which are respectively provided with a rotating buckle connecting end and a clamping groove connecting end and are butted with each other is adopted, and the two joint pipes which are connected with each other can unlock the connecting buckle in a circumferential rotating mode. Therefore, the pipeline connecting structure is a connection mode without a clamp, and the pipeline connecting structure only needs simple plugging and unplugging even if being fixed or disassembled, and has the characteristic of repeated operation and use. Therefore, the optimized structural form of the clamp-free structure reduces the number of parts, simplifies the assembly process, avoids the waste of materials and further plays a role in reducing the production cost.
As shown in fig. 9 and 11, in the pipe connection structure of the present invention, the fastening groove connection end at least includes a plurality of fastening groove portions 1 and a plurality of fastening tooth withdrawing portions 4 which are alternately arranged along the circumferential direction of the pipe; the rotary buckle connecting end at least comprises a plurality of buckles 11 arranged at intervals along the circumferential direction, and the buckles 11 are formed with clamping teeth 12 which radially and inwards extend and are used for being in buckle fit with the clamping groove part 1. Wherein, along pipeline connection structure's butt joint direction, latch 12 can slide in draw-in groove portion 1 with the joint in draw-in groove portion 1 to latch 12 can follow the circumferencial direction and rotate to draw-in groove portion 1 circumference and withdraw from portion 4 to extract from the draw-in groove link. Like this, just can realize the detachable connections structure of rotatory buckle link and draw-in groove link.
Generally, in the pipe connecting structure of the present invention, the number of the card slot portions 1 and the number of the card teeth 12 which are engaged with each other are the same, and the number of the fastening positions is generally not less than 2, and is usually 3 or 4 or even 5.
In the specific embodiment of the joint pipe, the rotary buckle connecting end can rotate to the latch withdrawing part 4 from one circumferential end of the clamping groove part 1 of the clamping groove connecting end to unlock and withdraw, and the corresponding clamping groove connecting end is called as a single-rotation clamping groove connecting end; or the rotary buckle connecting end can also rotate to the latch withdrawing part 4 from the two circumferential ends of the clamping groove part 1 of the clamping groove connecting end to be unlocked and withdrawn, and the corresponding clamping groove connecting end is called as a double-rotation clamping groove connecting end.
Specifically, referring to fig. 1 and 2, the outer circumferential portion of the single-turn bayonet coupling end is formed with a plurality of bayonet portions 1 arranged at intervals in the circumferential direction of the coupling pipe, the circumferential direction includes a first circumferential direction and a second circumferential direction opposite to each other, the bayonet 12 falling into the bayonet portions 1 can be turned out of the bayonet portions 1 in the first circumferential direction, and the circumferential end of the bayonet portions 1 is formed with a turn-out stopper 2 stopping the turning-out of the bayonet 12 in the second circumferential direction. Therefore, the latch 12 can be pulled out only by one-way screwing in the first circumferential direction without the screw-out stopper 2 at the connection end of the single-screw bayonet. The unidirectional screwing-out mode has the effect of safe fool-proof design, and is particularly suitable for occasions such as gas pipeline connecting structures and the like.
Generally, at the connection end of the single-turn bayonet, in the circumferential direction of the joint pipe, one end of the bayonet part 1 is provided with a turning-out stopper 2, and the other end is provided with a turning-out guide 3 for guiding the turning-out in the first circumferential direction.
Referring to fig. 3 to 5, at the connection end of the double-rotation slot, the circumferential direction of the present solution includes a first circumferential direction and a second circumferential direction opposite to each other, and the circumferential two ends of the slot portion 1 are respectively provided with a rotation-out guide portion 3 for guiding rotation-out toward the latch exit portion 4 along the first circumferential direction and the second circumferential direction. Therefore, a user can screw the rotary buckle connecting end in the circumferential direction to enable the clamping teeth 12 to be screwed out of any screwing-out guide part 3 at two circumferential ends of the clamping groove part 1, the bidirectional screwing-out mode is more suitable for operation of pipeline connection when the installation space is narrow, and the user can select the screwing-out direction at will according to a labor-saving angle.
Simultaneously, on this two draw-in groove connecting ends that revolve, the circumference both ends of latch withdrawing part 4 are equipped with backstop latch 12 respectively along the circumferencial direction towards the spacing portion 2 of back-spin that the latch portion 1 circled to make joint pipe move latch portion 1 twist to latch withdrawing part 4 and can't circle round to latch portion 1 again, and can only unbuckle and outwards extract, structural design is more reasonable.
In the clamping groove connecting end, no matter the double-rotation clamping groove connecting end or the single-rotation clamping groove connecting end, the screwing-out limiting part 2 is a limiting boss protruding out of the bottom wall of the annular groove, and the screwing-out guide part 3 protrudes out of the bottom wall of the annular groove and is provided with a rising guide inclined surface facing the clamping tooth withdrawing part 4 in a guide sliding mode on the surface.
The clamping groove parts 1 and the clamping tooth withdrawing parts 4 are sequentially and alternately arranged along the circumferential direction of the joint pipe.
It should be noted that, if no special description is provided hereinafter, the card slot connecting ends include a single-rotation card slot connecting end and a double-rotation card slot connecting end. Referring to fig. 1 to 4, the slot connecting end includes a front end guide tube section 100 and a rear end annular groove tube section 200 having an annular groove at an outer circumferential portion thereof, the annular groove is provided with a slot portion 1, a screw-out limiting portion 2 and a latch withdrawing portion 4, and the outer circumferential portion of the front end guide tube section 100 is provided with an insertion slide rail portion 5 for guiding the latch 12 to slide into the slot portion 1 in a one-to-one correspondence manner and a pull-out slide rail portion 6 for guiding the latch 12 to slide out of the latch withdrawing portion 4 in a one-to-one correspondence manner. The plugging slide rail part 5 and the pulling slide rail part 6 on the periphery of the front end guide pipe section 100 can better guide the latch 12 on the rotary buckle connecting end to work smoothly, and the motion track of the latch 12 is ensured, so that the operation of screwing and pulling is more labor-saving and convenient.
In order to effectively prevent the latch 12 from rotating from the latch exit portion 4 to the slot portion 1, a stop step surface 31 is formed between the rotation-out limiting portion 2 and the slot portion 1. The stopper stepped surface 31 can effectively prevent the latch 12 on the rotation click connection end from rotating over the stopper stepped surface 31 of the rotation-out stopper 2. Particularly, in the single-rotation card slot connecting end, a stopping step surface 31 is formed between the rotation-out limiting part 2 and the card tooth withdrawing part 4 so as to play a role of unidirectionally limiting the rotation of the card tooth 12 on the rotation card slot connecting end.
Wherein, on the front end guide pipe section 100 of the card slot connecting end, the surface of the plug-in slide rail part 5 is formed with a rising guide slope from the front to the back, and the surface of the pull-out slide rail part 6 is formed with a rising guide slope from the surface of the latch withdrawing part 4 from the back to the front. Like this, the surface of grafting slide rail portion 5 and extracting slide rail portion 6 all is equipped with the gliding direction inclined plane of buckle 12 of the rotatory buckle link of being convenient for, and wherein, the ascending direction inclined plane backward in the past of grafting slide rail portion 5 helps the chucking effect between buckle 12 and the draw-in groove link of rotatory buckle link, extracts the effect that slide rail portion 6 is convenient for the buckle 12 of rotatory buckle link to drop gradually by the ascending direction inclined plane forward backward. And the ascending guide slope may preferably be in the form of a planar smooth surface or an arc-shaped smooth surface, which may be a convex arc-shaped smooth surface or a concave arc-shaped smooth surface.
Meanwhile, as shown in fig. 1 to 4, circumferential side guide wings 8 protruding radially are provided on circumferential sides of the plugging slide rail portion 5 and the pulling slide rail portion 6, and the circumferential side guide wings 8 are arranged so that the plugging slide rail portion 5 and the pulling slide rail portion 6 are both in a chute shape, and the chute opening of the plugging slide rail portion 5 is gradually closed from the front to the rear, and the chute opening of the pulling slide rail portion 6 is gradually closed from the rear to the front. In the insertion slide rail part 5, the flaring-shaped circumferential side guide wing part 8 can better guide the buckle 12 of the rotary buckle connecting end to slide from the insertion slide rail part 5 to the clamping groove part 1; in the pull-out slider 6, the tapered circumferential side guide wing 8 can guide the clip 12 of the rotary clip connecting end to be slid from the notch 1 to the pull-out slider 6 and pulled out.
For making the rotatory buckle link can better chucking in the draw-in groove link and have the effect of locking taking off, be formed with anticreep step face 7 between grafting slide rail portion 5 and draw-in groove portion 1, refer to fig. 1, fig. 3 and fig. 5.
Meanwhile, in the pipe coupling structure of the present invention, as shown in fig. 6 and 7, the rotary snap coupling end includes an end annular flange 10 protruding radially outward and a plurality of snaps 11 axially protruding from a peripheral portion of the end annular flange 10 and arranged at intervals in a circumferential direction of the coupling pipe, and protruding ends of the snaps 11 are formed with radially inward protruding latches 12. And, the latch 12 may be provided in one-to-one correspondence with the card slot portion 1 of the card slot connection end.
Wherein, buckle 11 includes the buckle link end that links to each other with tip annular flange 10 and the buckle that is equipped with latch 12 stretches out the end, and the buckle stretches out the end and can produce crooked deformation for the buckle link end to when making rotatory buckle link end and draw-in groove link end buckle cooperation, latch 12 can the chucking on draw-in groove portion 1, refer to and show in fig. 8 to 11. Therefore, the joint pipe having the rotary snap-fit connection end may generally adopt a plastic pipe or a silicone pipe having a certain flexibility.
On the rotary buckle connection end, the buckle 11 may be L-shaped, and the L-shaped buckle 11 can "hook" the card slot portion 1, see fig. 6, 7 and 11.
Specifically, in the axial projecting direction of the catch 11, the catch rear end surface of the catch 12 is formed as a catch stop surface extending in the radial direction. The latch stop surface is generally a curved surface or a flat surface with a large inclination angle, and the latch stop surface can make the structure of the latch 12 and the slot portion 1 more compact.
Further, the bottom end face of the latch 12 is formed into a smooth plane or a convex smooth arc surface, and a smooth transition arc surface is formed between the bottom end face of the latch 12 and the front end face and the side wall face of the latch. Therefore, the smooth cambered surfaces can enable the latch 12 to effectively prevent mechanical interference in various installation processes, so that the latch 12 is more convenient to insert and labor-saving to operate.
In order to make the pipe connection structure more stable and have better water leakage prevention performance, the rotary snap connection end includes a snap-end nipple 14 axially protruding from a front end surface of the end annular flange 10, the snap-end nipple 14 being disposed radially inward of the plurality of snaps 11.
The joint pipe comprises a base pipe, an end annular flange 10 and a buckle end inner connecting pipe 14, wherein the end annular flange 10 is located at the end of the base pipe, and the buckle end inner connecting pipe 14, the base pipe and the end annular flange 10 are coaxially arranged and the outer diameters of the buckle end inner connecting pipe, the base pipe and the end annular flange 10 are sequentially increased. Generally, the snap-in end inner joint pipe 14 is usually sleeved on the inner side of the joint pipe having the snap-in end connection end, so that the joint pipe having the snap-in end connection end and the snap-in end inner joint pipe 14 work together to make the connection of the pipe connection structure more stable and the water leakage prevention performance more prominent.
And the axially forward projecting length of the snap-end inner nipple 14 is greater than the projecting length of the snap 11.
In addition, in order to further enhance the sealing and water leakage prevention performance of the pipeline connection structure, the rotary buckle connection end further comprises a sleeved waterproof sealing ring 13 sleeved outside the inner connecting pipe 14 of the buckle end.
In a matching manner, referring to fig. 7, 11 and 12, a sealing ring pressing ring surface 9 may be formed at the front edge of the inner pipe wall of the clamping groove connecting end, the sealing ring pressing ring surface 9 is pressed on the sleeved waterproof sealing ring 13, and the sealing ring pressing ring surface 9 enables the joint pipe with the clamping groove connecting end to be pressed on the waterproof sealing ring 13 more tightly, so as to achieve a sealing effect. The sealing ring crimping ring surface 9 can be obliquely crimped on the sleeve waterproof sealing ring 13, namely, the inner peripheral wall of the joint pipe with the clamping groove connecting end is provided with a section of annular conical surface, or the inner peripheral wall of the joint pipe can also be an annular cylindrical cambered surface.
In addition, the invention also provides a joint pipe, which can be applied to the pipeline connecting structure and can be of various types. For example, the adapter tube may be a one-way adapter tube or a two-way adapter tube. Specifically, the joint pipe may be a joint pipe having only a one-way connection structure, for example, a one-way joint pipe having a one-way rotation clamping groove connection end, a one-way joint pipe having a two-way rotation clamping groove connection end, a one-way joint pipe having a rotation buckle connection end (i.e., not having the waterproof sealing ring 13, the same below), and a one-way joint pipe having a sealing rotation buckle connection end (i.e., having the waterproof sealing ring 13, the same below).
Alternatively, the joint pipe may also be a piping structure having a bidirectional coupling structure:
for example, 1, a joint pipe with a single-rotation clamping groove connecting end is arranged at each of two-way pipe ends; 2. the bidirectional pipe ends are provided with joint pipes with double-rotation clamping groove connecting ends; 3. the bidirectional pipe ends are provided with bidirectional joint pipes of rotary buckle connecting ends; 4. the two-way pipe ends are provided with two-way joint pipes for sealing the rotary buckle connecting ends; 5. a bidirectional joint pipe with one end provided with a single-rotation clamping groove connecting end and one end provided with a double-rotation clamping groove connecting end; 6. a bidirectional joint pipe with one end provided with a single-rotation clamping groove connecting end and one end provided with a rotation buckle connecting end; 7. a bidirectional joint pipe with one end provided with a single-rotation clamping groove connecting end and one end provided with a sealed rotary buckle connecting end; 8. a bidirectional joint pipe with one end provided with a double-rotation clamping groove connecting end and one end provided with a rotation buckle connecting end; 9. a bidirectional joint pipe with one end provided with a double-rotation clamping groove connecting end and the other end provided with a sealed rotary buckle connecting end; 10. one end is provided with a rotary buckle connecting end, and the other end is provided with a bidirectional joint pipe for sealing the rotary buckle connecting end.
The above-mentioned joint pipes are all the joint pipes within the protection scope of the present invention.
In addition, the invention also provides a dish washing machine, which comprises a breather 600, a water cup and the joint pipe, wherein the joint pipe is connected between the breather 600 and the water cup.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (14)
1. A pipeline connecting structure is characterized by comprising a rotary buckle connecting end and a clamping groove connecting end which are in butt joint, wherein the rotary buckle connecting end is sleeved outside the clamping groove connecting end and can be pulled out from the clamping groove connecting end through circumferential rotation,
the draw-in groove link includes front end direction pipeline section (100) and is equipped with rear end annular pipeline section (200) of annular along the circumferencial direction's of pipeline peripheral part, be provided with on the annular along a plurality of draw-in groove portion (1) and a plurality of latch escape part (4) of circumferencial direction interval arrangement in turn, the peripheral part of front end direction pipeline section (100) is equipped with a plurality of grafting slide rail portion (5) that the one-to-one correspondence ground direction slided in draw-in groove portion (1) and a plurality of slide rail portion (6) of pulling out that the one-to-one correspondence ground direction roll-off the latch escape part (4),
the rotary buckle connecting end comprises a plurality of buckles (11) which are arranged at intervals along the circumferential direction, the buckles (11) are formed with clamping teeth (12) which radially and inwards extend and are used for being in buckle fit with the clamping groove part (1),
wherein, follow pipeline connection structure's butt joint direction, latch (12) can follow grafting slide rail portion (5) slide in slot part (1) with the joint in slot part (1), and latch (12) can follow circumferencial direction follow slot part (1) circumference is rotatory to latch escape portion (4), and follow correspondingly draw out slide rail portion (6) extract.
2. The pipe connection structure according to claim 1, wherein the circumferential directions include first and second circumferential directions opposite to each other, and both circumferential ends of the bayonet portion (1) are provided with a screw-out guide portion (3) for guiding screw-out toward the bayonet tooth escape portion (4) in the first and second circumferential directions, respectively.
3. The pipe connection structure according to claim 2, wherein both circumferential ends of the latch escape portion (4) are respectively provided with a screw-out stopper portion (2) that stops the rotation of the latch (12) toward the latch portion (1) in the circumferential direction.
4. The pipe connection structure according to claim 1, wherein the circumferential directions include a first circumferential direction and a second circumferential direction which are opposite in direction, the latch (12) which falls into the latch portion (1) can be unscrewed out of the latch portion (1) in the first circumferential direction, and a unscrewing limiting portion (2) which stops the latch (12) from unscrewing in the second circumferential direction is formed at a circumferential end of the latch portion (1).
5. The pipe connecting structure according to claim 4, wherein the groove portion (1) is provided at one end thereof with the screw-out restriction portion (2) and at the other end thereof with a screw-out guide portion (3) for guiding the screw-out in the first circumferential direction, in the circumferential direction.
6. The pipe connection structure according to claim 3 or 5, wherein the swing-out stopper (2) is a stopper projection projecting from a bottom wall of the annular groove, and the swing-out guide (3) projects from the bottom wall of the annular groove and has a surface formed as an ascending guide slope that is guided to slide toward the latch escape portion (4).
7. The pipe connection structure according to claim 1, wherein the surface of the insertion rail portion (5) is formed with a rising guide slope from front to rear, and the surface of the extraction rail portion (6) is formed with a rising guide slope from rear to front from the surface of the latch escape portion (4).
8. The pipe connection structure according to claim 7, wherein an anti-slip step surface (7) is formed between the insertion rail portion (5) and the catching groove portion (1) to prevent the catching teeth (12) from being disengaged from the catching groove portion (1).
9. The pipe connection structure according to claim 1, wherein radially protruding circumferential side guide wing portions (8) are provided on both circumferential sides of the insertion rail portion (5) and the extraction rail portion (6), the circumferential side guide wing portions (8) are arranged such that the insertion rail portion (5) and the extraction rail portion (6) are both in a chute shape, and such that a chute opening of the insertion rail portion (5) is gradually closed from front to back, and a chute opening of the extraction rail portion (6) is gradually closed from back to front.
10. The pipe connection according to claim 1, wherein the rotary snap connection end comprises a radially outwardly projecting end annular flange (10), and a plurality of the snap hooks (11) are extended at intervals in the circumferential direction and arranged on a peripheral portion of the end annular flange (10), wherein the snap hooks (11) comprise a snap connection end connected to the end annular flange (10) and a snap projection end provided with the snap tooth (12), and the snap projection end is capable of being bent and deformed with respect to the snap connection end to enable the snap tooth (12) to be snapped onto the snap groove portion (1).
11. The pipe connection according to claim 10, characterized in that said rotary snap-on connection end comprises a snap-on end nipple (14) projecting axially from a front end face of said end annular flange (10), said snap-on end nipple (14) being arranged radially inside a plurality of said snaps (11).
12. The pipe connection according to claim 10, characterized in that said rotary snap connection end is provided with a bell-and-spigot waterproof seal (13), said bell-and-spigot waterproof seal (13) being fitted over a snap-end inner nipple (14) axially projecting from a front end face of said end annular flange (10).
13. The pipe connection structure according to claim 12, wherein a leading edge portion of the inner pipe wall of the neck connecting end is formed with a seal ring crimping ring surface (9), and the seal ring crimping ring surface (9) is crimped onto the waterproof grommet (13).
14. A dishwasher, characterized in that the dishwasher comprises the pipe connection structure according to any one of claims 1 to 13.
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| CN201811647377.0A CN109538865B (en) | 2018-12-29 | 2018-12-29 | Pipeline connection structure and dish washer |
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| CN201811647377.0A CN109538865B (en) | 2018-12-29 | 2018-12-29 | Pipeline connection structure and dish washer |
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| CN109538865B true CN109538865B (en) | 2020-11-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10531781B2 (en) | 2017-09-29 | 2020-01-14 | Midea Group Co., Ltd. | Dishwasher with discretely directable tubular spray elements |
| DE102019117864A1 (en) * | 2019-07-02 | 2021-01-07 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Fastening device for two housing parts, in particular fan housing parts |
| US11497374B2 (en) | 2020-02-19 | 2022-11-15 | Midea Group Co., Ltd. | Dishwasher with wall-mounted rotatable conduit |
| US11412912B2 (en) * | 2020-09-21 | 2022-08-16 | Midea Group Co., Ltd. | Dishwasher with tubular spray element slip ring alignment |
| US11826001B2 (en) | 2022-02-15 | 2023-11-28 | Midea Group Co., Ltd. | Dishwasher with tubular spray element including elongated metal tube and retaining tab for mounting support member thereto |
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| CN109538865A (en) | 2019-03-29 |
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Effective date of registration: 20220907 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: No.20 Gangqian Road, industrial park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. |