CN211259763U

CN211259763U - Check valve of dish washer

Info

Publication number: CN211259763U
Application number: CN201921898017.8U
Authority: CN
Inventors: 赖志勇
Original assignee: Foshan Best Electrical Appliance Technology Co Ltd
Current assignee: Foshan Best Electrical Appliance Technology Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-08-14
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to the technical field of dish washing machines, and provides a check valve of a dish washing machine, which is arranged at the joint of a drain pipe joint and a water outlet pipe joint of the dish washing machine, the check valve comprises a non-return blocking piece and a fixed sleeve, the edge of the non-return blocking piece is provided with a buckling block, and the water outlet pipe joint is provided with a buckling groove buckled with the buckling block; the fixed sleeve comprises a sleeve and a sleeve ring, the sleeve is sleeved in the water outlet pipe joint, and the sleeve is provided with a connecting strip; the lantern ring is connected with the sleeve through the connecting strip, and the lantern ring and the sleeve are arranged at intervals to form a mounting groove; the non-return blocking piece is arranged in the mounting groove and covers the pipe orifice of the sleeve; and a top rib is arranged on the lantern ring, corresponds to the position of a fastening groove of the water outlet pipe joint and compresses the fastening block of the non-return blocking piece. The utility model discloses improve the structure of check valve, improve the firm degree of non return separation blade effectively, avoid the non return separation blade to be strikeed by rivers and drop, let the non return function keep effective.

Description

Check valve of dish washer

Technical Field

The utility model relates to the technical field of dish-washing machines, in particular to a check valve of a dish-washing machine.

Background

With the increasing development of science and technology and the improvement of living standard, especially with the rapid development of household appliance technology, a special dish washing device is provided for the aspect of tableware cleaning. A multifunctional dish washing machine generally has the functions of spraying, drying, sterilizing and the like, a user only needs to put tableware such as bowls and chopsticks into the dish washing machine, the dish washing machine can automatically complete a series of cleaning works according to the setting of the user, the use is convenient, the automation is full, the operation of the user is effectively reduced, and the dish washing machine is more and more loved by general users.

The dish washer on the market at present generally sets up the check valve on the outlet that the drain pump is connected to prevent that the interior sewage of drain pipe of dish washer from flowing backwards in the drain pump, in the interior courage of backward flow from the drain pump again, cause the pollution to the tableware.

In the prior art, a check valve structure arranged in a dish washer is generally characterized in that a check sheet seat is sleeved in a drainage outlet of a drainage pump, a check sheet is arranged on the check sheet seat, and an insertion groove is formed in the end part of the check sheet seat; one end of the non-return blocking piece is clamped in the slot by adopting a lug structure, and the other end of the non-return blocking piece is a free end for blocking the backflow water. The check baffle plate is kept in a normally closed state, so that the water outlet channel can be opened under the impact of the discharged water flow, and the backflow water can be blocked. However, the fixing structure of the non-return blocking piece has low reliability, namely, the non-return blocking piece is hung in the downstream direction of the drainage channel and is easy to fall off under the impact of the discharged water flow, the stability is low, and the non-return blocking piece is easy to fall off to cause the non-return function failure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a check valve of dish washer, the problem that the low non return separation blade of stability to prior art check valve drops easily improves the structure of check valve, and simple structure improves the firm degree of non return separation blade effectively, avoids the non return separation blade to be strikeed by rivers and drops, lets the non return function remain effective, improves the quality of valve body.

In order to realize the purpose, the utility model discloses a technical scheme is:

a check valve of a dish washer is arranged at the joint of a drain pipe joint and a water outlet pipe joint of the dish washer and comprises a check baffle and a fixed sleeve, wherein a buckling block is arranged at the edge of the check baffle, and a buckling groove buckled with the buckling block is arranged on the water outlet pipe joint; the fixed sleeve comprises a sleeve and a sleeve ring, the sleeve is sleeved in the water outlet pipe joint, and the sleeve is provided with a connecting strip; the lantern ring is connected with the sleeve through the connecting strip, and the lantern ring and the sleeve are arranged at intervals to form a mounting groove; the non-return blocking piece is arranged in the mounting groove and covers the pipe orifice of the sleeve; and a top rib is arranged on the sleeve ring, corresponds to the position of the fastening groove of the water outlet pipe joint and compresses the fastening block of the non-return blocking piece.

The utility model discloses a check valve of dish washer, compared with the prior art, this check valve includes non return separation blade and fixed cover, and the non return separation blade is fixed in the outlet pipe connects through fixed cover. In order to strengthen the fixing effect of the non-return blocking piece, firstly, a fastening groove is arranged on the water outlet pipe joint and is in fastening fit with a fastening block on the non-return blocking piece; secondly, the fixed sleeve comprises a sleeve and a sleeve ring, a mounting groove of a non-return baffle is arranged between the sleeve and the sleeve ring, the non-return baffle is arranged in the mounting groove, covers the water outlet channel and blocks the backflow water; then, set up on the lantern ring top muscle and go up the catching groove on the outlet pipe connects and do the cooperation, will the knot piece of non return separation blade compresses tightly to strengthen the fixed effect to the non return separation blade effectively, let the non return separation blade firmly connect and keep normally closed state on the fixed cover, and open water outlet channel under the impact of discharge water flow, can reset again and block the water of pouring, prevent effectively that the non return separation blade from being dropped by the impact of discharge water flow, improve the quality of valve body, increase of service life.

It is further right the structure of check valve is improved, be equipped with on the sheathed tube outer wall with the top muscle position complex constant head tank of the lantern ring, the lock catch of non return separation blade scarf joint in on the constant head tank, and with the catching groove lock joint that the outlet pipe connects. The constant head tank plays the installation and prevents slow-witted effect, and is usable the automatic alignment of installation just can be realized to the constant head tank, as long as with the knot piece embedding constant head tank of non return separation blade, just can let the knot piece align with the top muscle on the lantern ring is automatic to can connect the catching groove counterpoint lock joint with the outlet pipe, accomplish the location installation, improve the accuracy and the operating efficiency of installation effectively.

Furthermore, the sleeve is also provided with a plurality of convex rings, and the convex rings are sequentially arranged on the outer wall of the sleeve at intervals. The convex ring is abutted against the inner wall of the water outlet pipe joint, an effective anti-skidding effect is achieved, the fixing sleeve and the non-return retaining piece can be fixed, and an effective sealing effect can be achieved.

Still further, be equipped with on the sleeve pipe a plurality of connecting strip, and a plurality of connecting strip is arranged around the mouth of pipe of sleeve pipe to with lantern ring multiple spot is connected, improves and connects the hardness. The mounting groove structure formed between the sleeve ring and the sleeve is more stable, the non-return blocking piece can perform opening and closing movement in the mounting groove, the water outlet channel is opened or closed, and the stability of the valve body is effectively improved.

On the basis, the water outlet pipe joint is provided with a socket matched with the position of the connecting strip, and the connecting strip is outwards protruded and is inserted into the socket. The connecting strip is connected with the water outlet pipe joint in a positioning manner except for realizing the connecting effect between the lantern ring and the sleeve, so that the fixing effect between the fixing sleeve and the water outlet pipe joint is effectively improved, and the installation and the positioning between the buckling block of the non-return blocking piece and the buckling groove of the water outlet pipe joint can be realized at the same time.

The structure of the check valve is further improved, and the diameter of the lantern ring is equal to the caliber of the pipe orifice of the water outlet pipe, so that the lantern ring is buckled on the pipe orifice of the water outlet pipe. The whole fixing sleeve is fixed on the water outlet pipe connector, and the top rib and the buckling groove of the water outlet pipe connector are tightly abutted against the buckling block of the non-return blocking piece, so that the fixing effect of the non-return blocking piece is enhanced.

Furthermore, the non-return separation blade is a deformable separation blade made of soft plastic materials. The non-return blocking piece and the buckling block are integrally formed, so that the non-return blocking piece can be bent and deformed at the joint of the non-return blocking piece and the buckling block, and the water outlet channel is opened or restored and closed along with the impact of the discharged water flow.

Furthermore, a central hole is arranged in the sleeve ring, the diameter of the central hole is larger than the area of the surface of the central hole and the area of the non-return blocking piece, so that the non-return blocking piece is arranged in the mounting groove between the sleeve ring and the sleeve, and is turned open in the central hole of the sleeve ring along with the impact of discharged water flow to open a water outlet channel; or the water is recovered in the central hole of the lantern ring and restored, so that the water is blocked. The non-return baffle can smoothly complete the opening and closing movement, and the stability of the valve body is improved.

Furthermore, the area of the sheet surface of the non-return baffle is larger than the diameter of the pipe orifice of the sleeve, so that the non-return baffle is placed on the pipe orifice of the sleeve to effectively cover the pipe orifice of the sleeve, stop the backflow water and improve the sealing performance.

On the basis, the pipe orifice of the drainage pipe joint is an opening which gradually expands outwards, and an inclined plane matched with the position of the opening is arranged on the annular surface of the end part of the lantern ring. Let the lantern ring with the mouth of pipe that drain pipe connects can counterpoint automatically, inserts the check valve in the drain pipe connects, accomplish the installation operation, improve production efficiency and operation effectively and experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is an assembly structure view of a check valve, a drain pipe joint and a drain pipe joint of a dishwasher according to an embodiment of the present invention;

fig. 2 is a perspective view of a fixing sleeve provided in an embodiment of the present invention;

fig. 3 is a perspective view of the fixing sleeve provided by the embodiment of the present invention mounted to the water outlet joint;

fig. 4 is a cross-sectional view of the check valve provided in the embodiment of the present invention installed in the water outlet pipe joint;

fig. 5 is an assembled state sectional view of a drain pipe joint, a check valve, and a water outlet pipe joint according to an embodiment of the present invention.

Reference numerals: 1. a check valve; 2. a drain pipe joint; 21. opening the mouth; 3. a water outlet pipe joint; 31. buckling grooves; 32. a socket; 4. a non-return baffle plate; 41. buckling blocks; 5. fixing a sleeve; 50. mounting grooves; 51. a sleeve; 52. a collar; 520. a central bore; 521. a bevel; 53. a connecting strip; 54. jacking ribs; 55. positioning a groove; 56. a convex ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, an embodiment of the present invention provides a check valve of a dish washer, the check valve 1 is disposed at a connection portion of a drain pipe joint 2 and a water outlet pipe joint 3 of the dish washer, the check valve 1 includes a non-return blocking piece 4 and a fixing sleeve 5, a fastening block 41 is disposed at an edge of the non-return blocking piece 4, and a fastening groove 31 fastened with the fastening block 41 is disposed on the water outlet pipe joint 3; the fixed sleeve 5 comprises a sleeve 51 and a sleeve ring 52, the sleeve 51 is sleeved in the water outlet pipe joint 3, and a connecting strip 53 is arranged on the sleeve 51; the lantern ring 52 is connected with the sleeve 51 through the connecting strip 53, and the lantern ring 52 and the sleeve 51 are arranged at intervals to form a mounting groove 50; the check baffle 4 is arranged in the mounting groove 50 and covers the pipe orifice of the sleeve 51; the lantern ring 52 is provided with a top rib 54, the top rib 54 corresponds to the position of the fastening groove 31 of the water outlet pipe joint 3, and presses the fastening block 41 of the non-return blocking piece 4.

In order to enhance the fixing effect of the non-return blocking piece 4, the non-return blocking piece 4 of the dishwasher check valve of the utility model is firstly provided with a buckling groove 31 which is matched with a buckling block 41 on the non-return blocking piece 4 in a buckling way on the water outlet pipe joint 3; secondly, the fixed sleeve 5 comprises a sleeve 51 and a sleeve ring 52, a mounting groove 50 of the check baffle 4 is arranged between the sleeve 51 and the sleeve ring 52, and the check baffle 4 is arranged in the mounting groove 50 to cover a water outlet channel and block backflow water; then, the top rib 54 arranged on the lantern ring 52 is matched with the fastening groove 31 on the water outlet pipe joint 3, and the fastening block 41 of the non-return baffle 4 is pressed tightly, so that the fixing effect on the non-return baffle 4 is effectively enhanced, the non-return baffle 4 is stably connected to the fixing sleeve 5 to keep a normally closed state, a water outlet channel is opened under the impact of the discharged water flow, the backflow water can be restored and blocked, the non-return baffle 4 is effectively prevented from falling off due to the impact of the discharged water flow, and the quality of the valve body is improved.

The structure of the check valve 1 is optimized, as shown in fig. 2, a positioning groove 55 matched with the top rib 54 of the sleeve ring 52 is arranged on the outer wall of the sleeve 51, and the fastening block 41 of the check baffle 4 is embedded in the positioning groove 55 and fastened with the fastening groove 31 of the water outlet pipe joint 3. The positioning groove 55 plays a role in installation and fool-proofing, and the positioning groove 55 can be utilized to realize automatic alignment of installation. In the installation process, as long as the non-return baffle 4 is inserted into the installation groove 50, and the buckling block 41 is embedded in the positioning groove 55, the buckling block 41 can be automatically aligned with the top rib 54 on the lantern ring 52, and then inserted into the water outlet pipe joint 3 together with the fixed sleeve 5, and is in alignment and fastening with the buckling groove 31 on the water outlet pipe joint 3, so that the positioning installation is completed, and the installation accuracy and the operation efficiency are effectively improved.

As shown in fig. 2, the sleeve 51 is further provided with a plurality of protruding rings 56, and the plurality of protruding rings 56 are sequentially and alternately arranged on the outer wall of the sleeve 51. The bulge loop 56 is contradicted with the inner wall of the water outlet pipe joint 3, plays an effective anti-skidding role, can fix the setting positions of the fixed sleeve 5 and the non-return retaining sheet 4, and can play an effective sealing role.

Preferably, as shown in fig. 3, a plurality of the connecting strips 53 are provided on the sleeve 51, and the plurality of the connecting strips 53 are arranged around the nozzle of the sleeve 51 so as to be connected with the collar 52 at multiple points, thereby improving the connection rigidity. The mounting groove 50 formed between the lantern ring 52 and the sleeve 51 is more stable in structure, the check baffle 4 can be opened and closed in the mounting groove 50, the water outlet channel is opened or closed, and the stability of the valve body is effectively improved.

On the basis, the outlet pipe joint 3 is provided with a socket 32 matched with the connecting strip 53 in position, and the connecting strip 53 is outwards protruded and is inserted into the socket 32. The connecting strip 53 is connected with the outlet pipe joint 3 in a positioning manner besides the function of connecting the lantern ring 52 and the sleeve 51, so that the fixing effect between the fixing sleeve 5 and the outlet pipe joint 3 is effectively improved, and the installation and the positioning between the fastening block 41 of the non-return blocking piece 4 and the fastening groove 31 of the outlet pipe joint 3 can be realized at the same time.

The structure of the check valve 1 is optimized, as shown in fig. 4, the diameter of the collar 52 is equal to the caliber of the pipe orifice of the water outlet pipe, so that the collar 52 is fastened on the pipe orifice of the water outlet pipe. The whole fixing sleeve 5 is fixed on the water outlet pipe joint 3, and the top rib 54 and the buckling groove 31 of the water outlet pipe joint 3 are tightly abutted against the buckling block 41 of the non-return baffle 4, so that the fixing effect on the non-return baffle 4 is enhanced.

The non-return baffle 4 may preferably be a deformable baffle made of soft plastic material. The non-return blocking piece 4 and the buckling block 41 are integrally formed, so that the non-return blocking piece 4 can be bent and deformed at the joint of the non-return blocking piece 4 and the buckling block 41, and the water outlet channel is opened or restored and closed along with the impact of the discharged water flow.

As shown in fig. 4, a central hole 520 is formed in the collar 52, and the diameter of the central hole 520 is larger than the area of the sheet surface of the check flap 4, so that the check flap 4 is arranged in the mounting groove 50 between the collar 52 and the sleeve 51 and is turned open in the central hole 520 of the collar 52 along with the impact of the discharged water flow, and a water outlet channel is opened; alternatively, the water is recovered and restored in the center hole 520 of the collar 52, and the reverse flow water is blocked. The non-return baffle 4 can smoothly complete the opening and closing movement, and the stability of the valve body is improved.

Preferably, the area of the check baffle 4 is larger than the diameter of the pipe orifice of the sleeve 51, so that the check baffle 4 is placed on the pipe orifice of the sleeve 51, effectively covers the pipe orifice of the sleeve 51, blocks the backflow water, and improves the sealing performance.

On the basis, as shown in fig. 5, the pipe orifice of the drain pipe joint 2 is an opening 21 which gradually expands outwards, and an inclined surface 521 which is matched with the opening 21 is arranged on the annular surface of the end part of the lantern ring 52. In the installation process, the check valve 1 is firstly fixed on the water outlet pipe joint 3 and then is spliced with the drain pipe joint 2, because the pipe orifice of the drain pipe joint 2 is arranged in the way of opening 21, the ring surface of the sleeve ring 52 is provided with an inclined surface 521 matched with the opening 21, so that the sleeve ring 52 and the pipe orifice of the drain pipe joint 2 are automatically aligned and easily slide into the drain pipe joint 2, the installation operation is completed, and the production efficiency and the operation experience are effectively improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A check valve of a dish washer is arranged at the joint of a drain pipe joint and a water outlet pipe joint of the dish washer and is characterized by comprising a non-return blocking piece and a fixed sleeve, wherein a buckling block is arranged at the edge of the non-return blocking piece, and a buckling groove buckled with the buckling block is arranged on the water outlet pipe joint; the fixed sleeve comprises a sleeve and a sleeve ring, the sleeve is sleeved in the water outlet pipe joint, and the sleeve is provided with a connecting strip; the lantern ring is connected with the sleeve through the connecting strip, and the lantern ring and the sleeve are arranged at intervals to form a mounting groove; the non-return blocking piece is arranged in the mounting groove and covers the pipe orifice of the sleeve; and a top rib is arranged on the sleeve ring, corresponds to the position of the fastening groove of the water outlet pipe joint and compresses the fastening block of the non-return blocking piece.

2. The check valve of a dishwasher according to claim 1, wherein the outer wall of the sleeve is provided with a positioning groove matched with the top rib of the sleeve ring in position, and the fastening block of the check baffle is embedded on the positioning groove and fastened with the fastening groove of the water outlet pipe joint.

3. The check valve of a dishwasher of claim 2, wherein the sleeve is further provided with a plurality of protruding rings, and the plurality of protruding rings are sequentially and alternately arranged on the outer wall of the sleeve.

4. The check valve of a dishwasher of claim 1, wherein the sleeve is provided with a plurality of the connection bars, and the plurality of the connection bars are arranged around the nozzle of the sleeve.

5. The check valve of a dishwasher of claim 4, wherein the outlet pipe joint is provided with a socket matched with the connecting strip in position, and the connecting strip is arranged in a protruding way and is plugged with the socket.

6. The check valve of claim 1, wherein the diameter of the collar is equal to the diameter of the nozzle of the outlet pipe, so that the collar is fastened to the nozzle of the outlet pipe.

7. The check valve of dishwasher of claim 1, wherein the check flap is a deformable flap made of soft plastic material.

8. The check valve of a dishwasher of claim 1, wherein a central bore is provided in the collar, the central bore having a diameter greater than a face area of the check flap.

9. The check valve of the dishwasher of claim 1, wherein a face area of the check flap is larger than a diameter of the orifice of the sleeve so that the check flap rests on the orifice of the sleeve.

10. The check valve of dishwasher according to any one of claims 1 to 9, wherein the nozzle of the drain pipe joint is an opening which is gradually expanded outward, and an inclined surface which is matched with the position of the opening is arranged on the annular surface of the end part of the collar.