CN216907901U

CN216907901U - Exhaust assembly and dish-washing machine

Info

Publication number: CN216907901U
Application number: CN202122955766.3U
Authority: CN
Inventors: 高恒瑞
Original assignee: Beijing Honganshuidi Technology Development Co ltd
Current assignee: Beijing Honganshuidi Technology Development Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-08
Anticipated expiration: 2031-11-29

Abstract

The utility model provides an exhaust assembly and a dish washing machine, which comprises an exhaust assembly body, wherein the exhaust assembly body comprises an air inlet, an air channel and a deflection channel are arranged in the exhaust assembly body, the air channel comprises an inlet section, a flow guide section and an outlet which are sequentially connected, the inlet section is communicated with the air inlet and is smoothly connected with the flow guide section, the outlet is communicated with the deflection channel, an exhaust port is arranged at the outlet of the deflection channel, the outlet of the air channel is higher than the exhaust port of the deflection channel, the body comprises an interface piece (1) and an intermediate piece (2), and the interface piece (1) and the intermediate piece (2) are integrally formed or fixedly connected in a welding and bonding mode; one side of the middle piece (2) departing from the interface piece (1) is provided with a hollow stud (23), the nut (4) is connected with the hollow stud (23), and the side face of the tail end of the nut (4) is further provided with an exhaust hole (43).

Description

Exhaust assembly and dish washing machine

Technical Field

The present invention relates to an exhaust assembly, in particular for a dishwasher.

Background

In commercial dishwashers, an exhaust assembly is typically employed to vent a portion of the gas to the wash tank. Fig. 9 is a schematic diagram of a water path of a conventional commercial dishwasher, which includes a water inlet valve 1 'communicating with an external water source, and water from the water inlet valve passes through a heat exchange tank 2' and enters a rinse water tank 3 ', is heated and pumped by a water pump 4' into a rinse arm 5 'and is sprayed into a rinse compartment 8'. The lower part of the washing compartment has a main wash tank 9 'in which hot water flows into the heat exchange tank 2' and is discharged through a drain line 7 'by a drain pump 6'. The upper part of the heat exchange box 2 ' is communicated with the cleaning cabin 8 ' through the exhaust component 2A, and the upper part of the rinsing water box 3 ' is communicated with the cleaning cabin 8 ' through the exhaust component 3A, so that high-temperature steam at the upper parts of the heat exchange box 2 ' and the rinsing water box 3 ' enters the cleaning cabin 8 ' through the exhaust component. In addition, the upper part of the drain duct 7 'communicates with the wash chamber 8' through the exhaust assembly 7A, so that the high-temperature steam in the exhaust duct 7 'will also flow into the wash chamber 8'.

In the prior art, the heat exchange box 2 ' and the rinsing water box 3 ' are directly communicated with the cleaning cabin 8 ' through a straight exhaust assembly, and mainly aim to exhaust air at the upper part when hot water flows into the heat exchange box 2 ' and the rinsing water box 3 ', or prevent high-temperature steam generated due to out-of-control heating from generating high pressure in the water boxes to damage the water boxes; the drainage pipeline 7' is communicated with the cleaning cabin by an exhaust assembly 7A, and the exhaust assembly 7A usually adopts a one-way valve in order to prevent sewage from flowing backwards due to the sewage in the drainage pipeline. With this design, the following problems arise: (1) water in the cleaning cabin can reversely enter the exhaust component under the spraying action of the cleaning arm 5', so that the exhaust effect of the heat exchange box and the rinsing water tank is influenced; (2) if an operator just opens the cleaning cabin when the steam is discharged, certain potential safety hazards exist; (3) the exhaust assembly 7A needs to adopt a structure of a check valve, and is generally designed in a different structure from the

exhaust assemblies

2A and 3A, so that the universality of parts is poor.

Disclosure of Invention

In order to solve the above problems, the present invention provides an exhaust assembly having an exhaust assembly body, the exhaust assembly body including an air inlet, a gas passage and a deflection passage, the gas passage including an inlet section, a flow guiding section and an outlet connected in sequence, the inlet section communicating with the air inlet and smoothly connected to the flow guiding section, the outlet communicating with the deflection passage, an exhaust outlet at the deflection passage outlet, the outlet of the gas passage being higher than the exhaust outlet of the deflection passage.

Further, the body comprises an interface piece and an intermediate piece, wherein an interface piece bulge is arranged on the interface piece and is abutted and matched with the intermediate piece to form the gas channel; or an intermediate piece bulge is arranged on the intermediate piece and is abutted and matched with the interface piece to form the gas channel; or the interface piece is provided with an interface piece bulge, the intermediate piece is provided with an intermediate piece bulge, and the interface piece bulge and the intermediate piece bulge are matched with each other to form the gas channel.

Further, the interface piece and the intermediate piece are integrally formed or fixedly connected in a welding or bonding mode.

Further, the interface piece also comprises a pipe interface, and one end of the pipe interface is an air inlet of the body; and one side of the intermediate piece, which is far away from the interface piece, is provided with a hollow stud, and the hollow stud is communicated with an air outlet of the baffling channel.

Further, the exhaust assembly further comprises a nut, an internal thread is arranged inside the nut, the internal thread is connected with the external thread on the hollow stud in a matched mode, an exhaust hole is formed in the side face of one end of the nut, and the exhaust hole is communicated with the inside of the nut.

Further, the nut further comprises a protruding ring inside the internal thread, the protruding ring is located on the inner side of the internal thread, and when the nut is connected with the hollow stud, the side wall of the hollow stud is located between the internal thread and the protruding ring.

Furthermore, the outlet of the deflection channel is provided with a partition plate which partially seals the outlet of the deflection channel, and the unsealed part forms the exhaust port of the deflection channel.

Furthermore, a ball body is arranged in the hollow stud, and the ball body is limited by the protruding ring and the partition plate.

Further, the inner edge of the protruding ring is also provided with a chamfer.

Furthermore, the hollow stud is also provided with a rotation stopping positioning plane.

Furthermore, the exhaust assembly is also provided with a sealing gasket, and the sealing gasket is sleeved on the hollow stud.

The utility model also provides a dish washing machine, which comprises one or more of a heat exchange water tank, a rinsing water tank and a drainage pipeline, and a cleaning cabin, wherein the upper part of the heat exchange water tank, the upper part of the rinsing water tank and the drainage pipeline are respectively connected with the cleaning cabin, the exhaust assembly is arranged at the connection part, and the exhaust assembly is arranged on the wall surface of the cleaning cabin.

Preferably, the upper part of the heat exchange water tank and the upper part of the rinsing water tank are connected with the cleaning cabin by a non-spherical exhaust assembly; the drainage pipeline is connected with the cleaning cabin by adopting a spherical exhaust assembly; the exhaust assembly is mounted on the wall surface of the cleaning cabin.

The utility model has the following technical effects: the exhaust member nut with the hole on the side surface prevents steam from directly facing operators, so that the safety is improved; the function of a one-way valve is realized by adding a small ball on the multifunctional universal exhaust element, so that sewage is prevented from flowing back into the main washing water tank in the drainage stage; the multifunctional universal exhaust piece is compatible with different requirements, the number of parts is reduced, and the universality is greatly enhanced.

Drawings

FIG. 1 is an exploded view of a vent assembly;

FIG. 2 is an assembled view of the exhaust assembly;

FIG. 3 is a block diagram of an interface of the exhaust assembly;

FIG. 4 is a diagram of the intermediate member structure of the exhaust assembly;

FIG. 5 is a perspective view of the nut;

FIG. 6 is a cross-sectional view of the nut;

FIG. 7 is a cross-sectional view of the exhaust assembly;

FIG. 8 is a schematic view of the installation of the exhaust assembly on the dishwasher;

fig. 9 is a schematic diagram of a water circuit of a commercial dishwasher.

Detailed Description

Referring to fig. 1-3, the vent assembly includes an interface 1, an intermediate piece 2, a sealing gasket 3, a nut 4, and a bead 5.

The interface 1 includes a pipe interface 11, an interface flow channel 12, and an interface projection 13, wherein one end of the pipe interface 11 is communicated with a device (e.g., a heat exchange tank, a rinse water tank, a drain pipe) for discharging gas through, for example, a connection hose, the interface flow channel 12 and an interface deflecting passage 17 are formed inside the interface 1, and the interface flow channel 12 includes an inlet section, a guide section, and an outlet 121 communicated with the pipe interface 11. Steam enters the interior of the mouthpiece 1 through the pipe mouthpiece 11, flows up the inlet section, changes direction through the flow guiding section, and enters the mouthpiece deflection channel 17 through the outlet 121. In fig. 3, the inlet section is a vertical channel, the flow guide section is an arc channel, and the inlet section and the flow guide section are smoothly connected. The arc-shaped flow channel is adopted, so that steam entering the interface element 1 can flow along the interface element flow channel 12 quickly, the condensation of the steam in the flow guide section is reduced as much as possible, and even if a small amount of condensed water is generated, the smooth arc-shaped channel cannot cause the accumulation of the condensed water. The mouthpiece projection 13 protrudes from the plane of the mouthpiece 1, thereby forming the mouthpiece flow channel 12 and the mouthpiece deflection channel 17; or the mouthpiece 1 itself is formed with recesses for the mouthpiece flow channels 12 and the mouthpiece deflection channels 17, said mouthpiece projections 13 being located on both sides of the recesses, preferably flush with both sides of the recesses.

Referring to fig. 4, the intermediate member 2 includes an intermediate member flow passage 21, an intermediate member projection 22, a hollow stud 23, a rotation stop positioning flat 24, and an intermediate member baffle passage 27. The intermediate piece projection 22 protrudes out of the plane of the intermediate piece 2 to form the intermediate piece flow channel 21 and the deflection channel 27; or on the intermediate piece 2 itself, there are formed recesses for the intermediate piece flow channels 21 and the intermediate piece deflection channels 27, said intermediate piece projections 22 being located on both sides of the recesses, preferably flush with both sides of the recesses. The intermediate piece projection 22 has substantially the same shape as the interface piece projection 13, and the interface piece 1 and the intermediate piece 2 are assembled by the cooperation of the two projections. The mouthpiece 1 and the intermediate member 2 may be fixed by welding, bonding, or the like, thereby constituting the exhaust assembly body. The interface piece flow passage 12 and the intermediate piece flow passage 21 are matched in the exhaust component body to form a gas passage; the interface member deflection passage 17 and the intermediate member deflection passage 27 cooperate to form a deflection passage within the exhaust assembly body. In fig. 3-4, the interface piece protrusion 13 of the interface piece 1 and the intermediate piece protrusion 22 of the intermediate piece 2 cooperate with each other to form a complete gas passage and deflection passage inside the exhaust assembly body, and it will be understood by those skilled in the art that one of the interface piece 1 and the intermediate piece 2 is provided with a protrusion and the other is provided with a flat surface which cooperates with the protrusion to form the gas passage. Or, the interface member 1 and the intermediate member 2 are integrally formed to form an exhaust assembly body, a gas channel and a deflection channel are formed in the exhaust assembly body, one end of the gas channel is communicated with the gas inlet, and the other end of the gas channel is provided with a gas outlet and communicated with the deflection channel.

For convenience of description, the following description will proceed with the embodiment of the present invention in which the mouthpiece 1 and the intermediate piece 2 are two members and have the mouthpiece projection 13 and the intermediate piece projection 22, respectively.

The outlet of the intermediate member baffle channel 27 is also provided with a partition 25 which partially closes the outlet of the intermediate member baffle channel 27. In fig. 4, the outlet of the baffle channel of the intermediate piece is closed at the lower part by a partition 25 and at the upper part by a semicircular exhaust opening 26.

The outlet 211 of the intermediate piece flow channel is higher than the exhaust port 26, i.e. if water from the outside splashes into the gas module from the exhaust port 26, it does not flow out of the inlet of the pipe joint 11 due to the effect of gravity.

A hollow stud 23 is arranged on the other side of the projection direction of the intermediate piece projection 22, said hollow stud 23 communicating with an intermediate piece deflection channel 27. The hollow stud 23 is threaded on the outside and has a detent plane 24.

Referring to fig. 5-6, the nut 4 has internal threads 41, the internal threads 41 are matched and connected with the external threads of the hollow stud 23, and the side surface of the tail end of the nut 4 is also provided with a vent hole 43, and the vent hole 43 is communicated with the interior of the nut. During exhausting, steam enters the interior of the nut 4 through the interior of the hollow stud 23 and is exhausted from the exhaust hole 43 on the side face of the tail end of the nut 4, the steam is prevented from directly facing to an operator, and safety is improved. In the figure, the nut is a hexagonal nut, the exhaust holes 43 are located on six surfaces, the circumference is distributed, and the nut can be installed at any installation angle regardless of the hole orientation. The water flowing in during cleaning can also be discharged.

Referring to fig. 6-7, the nut 4 further comprises a protruding ring 42 inside the internal thread 41, the protruding ring 42 is located inside the internal thread 41, and when the nut 4 is connected with the hollow stud 23, the sidewall of the hollow stud 23 is located between the internal thread 41 and the protruding ring 42. A chamfer is also provided on the inner edge of the projecting ring 42. When the exhaust assembly uses as the check valve, set up spheroid 5 in the inside of cavity double-screw bolt 23, one side of spheroid 5 is baffle 25, and baffle 25 prevents that spheroid 5 from entering into the gas flow path of exhaust assembly body from the cavity double-screw bolt in, and second forms the separation to the a small amount of ponding that the splash got into the exhaust hole, prevents that sewage from getting into inside the exhaust hole. The other side of the ball 5 is limited by the protruding ring 42, so that the effect similar to a one-way valve is formed, and when water is drained, the ball 5 is attached to the chamfer on the inner side of the hole edge of the protruding ring 42 under the action of internal pressure, and the sealing effect is achieved. Water is prevented from entering the nut 4 from the gas flow passage and flowing out of the gas outlet hole of the nut 4.

The interface member 1 and the intermediate member 2 are fixed in combination or integrally formed to constitute an exhaust assembly body. As can be seen from the above description, the exhaust assembly body has an air inlet, an air passage and a deflection passage, the air passage includes an inlet section, a flow guiding section and an outlet, the inlet section is communicated with the air inlet, the outlet is communicated with the deflection passage, an exhaust port is arranged at the outlet of the deflection passage, and the outlet of the air passage is higher than the exhaust port of the deflection passage.

The outlet of the deflection channel is provided with a baffle plate which partially seals the outlet of the deflection channel, and the unsealed part forms the exhaust port.

External gas enters the internal gas channel through the gas inlet of the gas module body, and when flowing inside the gas channel, although the direction may change, the external gas basically flows in the same flow plane, and after entering the deflection channel, the plane in which the fluid flows forms a certain angle with the plane in which the fluid flows in the gas channel, and in the embodiment of the utility model, the angle is basically 90 degrees (see fig. 7), namely, the plane in which the flow is formed is turned.

Fig. 8 is a schematic view of the installation of the exhaust assembly on the dishwasher, when installing, the hollow studs 23 on the exhaust assembly body pass through the holes on the back plate of the dishwasher and enter the front surface of the dishwasher, then the sealing washer 3 is sleeved on the hollow studs 23, the spheres 5 are placed in the hollow studs as required, and then the nuts 5 are screwed on the hollow studs 23 and are abutted against the wall surface of the dishwasher.

The exhaust assembly of the utility model can be used in a dishwasher as a universal exhaust assembly, for example, for exhaust of a heat exchange box and a rinsing box, the ball 5 is not arranged in the exhaust, and for exhaust of a drainage pipeline, the ball 5 is arranged in the exhaust, so that backflow of sewage is prevented. The difference between the two is that whether the ball body 5 is placed or not during installation, so that the compatibility of different requirements is realized through the multifunctional universal exhaust piece, the number of parts is reduced, and the universality is greatly enhanced.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an exhaust subassembly, has the exhaust subassembly body, the exhaust subassembly body includes the air inlet, and inside has gas passage and baffling passageway, and gas passage is including the inlet section, water conservancy diversion section and the export that connect gradually, inlet section and air inlet intercommunication, and with water conservancy diversion section is smooth to be connected, the export with baffling passageway intercommunication, its characterized in that has the gas vent in the exit of baffling passageway, and gas passage's export will be higher than the gas vent of baffling passageway.

2. An exhaust assembly according to claim 1, characterized in that the body comprises a mouthpiece (1) and an intermediate piece (2), on which mouthpiece (1) a mouthpiece projection (13) is provided, which cooperates against the intermediate piece (2) to form the gas channel; or an intermediate piece bulge (22) is arranged on the intermediate piece (2) and is abutted and matched with the interface piece (1) to form the gas channel; or the interface piece (1) is provided with an interface piece bulge (13), the intermediate piece (2) is provided with an intermediate piece bulge (22), and the interface piece bulge (13) and the intermediate piece bulge (22) are mutually matched to form the gas channel.

3. Exhaust assembly according to claim 2, characterized in that the interface member (1) and the intermediate member (2) are integrally formed or fixedly connected by welding, gluing.

4. An exhaust assembly according to claim 3, wherein the interface (1) further comprises a pipe interface (11), one end of the pipe interface (11) being an air inlet of the body; one side of the middle piece (2) departing from the interface piece (1) is provided with a hollow stud (23), and the hollow stud (23) is communicated with an exhaust port of the baffling channel.

5. The exhaust assembly according to claim 4, characterized in that the exhaust assembly further comprises a nut (4), an internal thread (41) is arranged inside the nut (4), the internal thread (41) is matched and connected with an external thread on the hollow stud (23), an exhaust hole (43) is further formed in one end side of the nut (4), and the exhaust hole (43) is communicated with the inside of the nut (4).

6. Exhaust assembly according to claim 5, characterized in that the nut (4) further comprises a protruding ring (42) inside the internal thread (41), the protruding ring (42) being located inside the internal thread (41), the side wall of the hollow stud (23) being located between the internal thread (41) and the protruding ring (42) when the nut (4) is connected to the hollow stud (23).

7. An exhaust assembly according to any one of claims 1 to 5, wherein the outlet of the deflecting passage is provided with a partition (25) which closes off part of the outlet of the deflecting passage, the non-closed part forming the exhaust opening of the deflecting passage.

8. Exhaust assembly according to claim 6, characterized in that the outlet of the deflection channel is provided with a partition (25) closing off the outlet part of the deflection channel, the unclosed part forming the exhaust opening of the deflection channel.

9. Exhaust assembly according to claim 8, characterized in that a ball (5) is arranged in the hollow stud (23), the ball (5) being retained by the protruding ring (42) and the partition (25).

10. An exhaust assembly according to claim 9, characterized in that the projecting ring (42) inner edge is further provided with a chamfer.

11. A vent assembly according to any one of claims 5-6 and 8-10, wherein the hollow stud (23) is further provided with a detent (24).

12. An exhaust assembly according to any of claims 5-6, 8-10, characterized in that the exhaust assembly further has a sealing gasket (3), the sealing gasket (3) being fitted over the hollow stud (23).

13. A dishwasher, characterized by comprising a venting assembly according to any one of claims 1-12.

14. A dishwasher comprising one or more of a heat exchange tank, a rinse tank, a drain line, and a wash tank, the upper portion of the heat exchange tank, the upper portion of the rinse tank, and the drain line being connected to the wash tank, respectively, characterized in that the connection has an exhaust assembly as claimed in any one of claims 1 to 12 mounted on a wall of the wash tank.

15. A dishwasher comprising a heat exchange water tank, a rinse water tank, one or more of drain pipes, and a cleaning compartment, wherein the upper part of the heat exchange water tank and the upper part of the rinse water tank are respectively connected with the cleaning compartment, characterized in that the connection is provided with an exhaust assembly as claimed in any one of claims 1 to 8; said drain conduit being connected to said wash chamber by an exhaust assembly according to any one of claims 9 to 12; the exhaust assembly is mounted on a wall surface of the cleaning cabin.