CN212202447U - Built-in check valve who inlays cover - Google Patents
Built-in check valve who inlays cover Download PDFInfo
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- CN212202447U CN212202447U CN202020927236.0U CN202020927236U CN212202447U CN 212202447 U CN212202447 U CN 212202447U CN 202020927236 U CN202020927236 U CN 202020927236U CN 212202447 U CN212202447 U CN 212202447U
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- bushing
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Abstract
The utility model discloses a one-way valve with a built-in bushing, which relates to the technical field of mechanical valve manufacturing, and comprises a water inlet bushing 1 and a water outlet bushing 6, wherein the water inlet end of the water outlet bushing 6 is inserted into the water outlet end of the water inlet bushing 1; the water inlet sleeve 1 and the water outlet sleeve 6 form an inner cavity, and the water inlet sleeve also comprises a sealing assembly formed by a sealing insert sleeve 2, a sealing head 4 and a telescopic spring 5; the sealing insert sleeve 2 is arranged at the inner hole step part of the water inlet sleeve 1, the ball head end of the sealing head 4 props against the inner hole end of the sealing insert sleeve 2, the rod tail end of the sealing head 4 is sleeved with the end of the telescopic spring 5, and the tail end of the telescopic spring 5 props against the inner hole step part of the water outlet sleeve 6; the sealing surface has the characteristics of high smoothness, high sealing performance and the like, and can be matched with washing, hanging and ironing electrical appliances and food processing electrical appliances for use.
Description
Technical Field
The utility model relates to a mechanical valve makes technical field, especially a built-in check valve who inlays cover.
Background
With the development of society and the improvement of living standard and quality of people, the demand of various washing, hanging and ironing and food processing electric appliances is increasing day by day, and diaphragm direct current motor water pumps applied in various industries are also applied and popularized more. When the existing diaphragm direct-current motor water pump is used, when the liquid level is higher than that of a motor pump or a liquid outlet of equipment and is lower than that of an electric appliance water tank, the diaphragm direct-current motor water pump does not have a leakage stopping function in the forward direction, so that liquid flows out, potential safety hazards and unnecessary troubles are brought to a user, and therefore a one-way valve capable of effectively preventing the liquid from flowing out is popular in the market.
At present, most of check valves popular in the market adopt injection molding plastic parts, and due to the influences of shrinkage, injection mold temperature, pouring gate position, flow channel size, cooling system and the like, shrinkage marks, convex-concave, unsmooth and the like appear on the sealing action surface of the molded plastic part, so that the product reject ratio is high, and the leakage-proof function cannot be realized.
The reverse low-leakage-rate one-way valve disclosed by the Chinese patent (application number 201420774295.3) comprises a pipe joint (1), a spring seat (2), a valve body (3), a spring (4) and a valve core (5), wherein a layer of rubber with the thickness of 0.2-1 mm is vulcanized on the end face (501) of the valve core (5). The utility model discloses a check valve adopts malleation helium mass spectrum leak hunting under 0.1MPa pressure differential, and reverse leak rate can be less than 1.0 x 10-5Pa · m3/s, except can replacing the check valve of traditional structure to be used for general hydraulic system and pneumatic system, still can be applied to reverse the occasion that has higher leakproofness requirement. And the structure is simple, the reliability is high, the processing cost is low, the popularization is easy, and the use value is higher.
Another chinese patent (application number is 201720013180.6) "a check valve subassembly" that discloses, including the valve casing, the inner wall integrated into one piece of valve casing has first supporting disk and second supporting disk, and first supporting disk is located the right side of second supporting disk, the third through-hole has transversely been seted up at the middle part of first supporting disk, the jack has been seted up at the middle part of second supporting disk, and the right flank of second supporting disk encircles the jack and has seted up first through-hole, it has the inserted bar to peg graft in the jack, and the valve head is installed to the left end of inserted bar, still be provided with the fender dish on the inserted bar. This check valve subassembly utilizes the cooperation of jack, limit slide and spout, can make the inserted bar when the jack is gliding, utilizes the slip of limit slide in the spout to fix a position the valve head, has guaranteed the location accuracy nature of valve head, can not make and take place the skew between valve head and the third through hole, and sealed comparatively tight, rubber seal's setting has also improved the leakproofness of valve head and third through hole contact department.
Disclosure of Invention
The utility model aims to solve the technical problem that a smooth finish of sealed face is higher, the better check valve of leakproofness is provided.
In order to solve the technical problem, the utility model discloses the technical scheme who takes designs a built-in check valve who inlays the cover: the water inlet sleeve comprises a water inlet sleeve 1 and a water outlet sleeve 6, wherein the water inlet end of the water outlet sleeve 6 is inserted into the water outlet end of the water inlet sleeve 1; the water inlet sleeve 1 and the water outlet sleeve 6 form an inner cavity, and the water inlet sleeve also comprises a sealing assembly formed by a sealing insert sleeve 2, a sealing head 4 and a telescopic spring 5; the seal inlay sleeve 2 is arranged at the inner hole step part of the water inlet sleeve 1, the ball head end of the seal head 4 abuts against the inner hole end of the seal inlay sleeve 2, the rod tail end of the seal head 4 is sleeved with the end of the extension spring 5, and the tail end of the extension spring 5 abuts against the inner hole step part of the water outlet sleeve 6.
An O-shaped sealing ring 3 is also arranged between the inner hole step of the water inlet sleeve 1 and the water inlet end part of the water outlet sleeve 6.
More than two L-shaped clamping grooves 7 are formed in the inner wall of the water outlet end of the water inlet sleeve 1, and clamping lugs 8 matched with the clamping grooves 7 are arranged on the inner wall of the water inlet end of the water outlet sleeve 6.
The external contour of the seal insert 2 is formed by stacking more than two disk-shaped bodies into a whole.
The external profile surface of the sealing insert sleeve 2 is in interference fit with the hole wall of the inner hole step of the water inlet sleeve 1.
The one-way valve with the built-in bushing of the utility model adopts the mode of independently manufacturing the sealing bushing, thereby ensuring the higher degree of finish of the sealing surface of the sealing bushing; simultaneously, its seal inlays the cover and adopts interference fit with the mouth of a river cover, and adopts sealed bulb and seal to inlay the cover and cooperate, therefore, makes the utility model discloses a built-in check valve product of inlaying the cover's leakproofness is better, can prevent the outflow of liquid effectively.
Drawings
Fig. 1 is a main sectional schematic view of the present invention;
fig. 2 is an exploded schematic view of the present invention;
FIG. 3 is an enlarged schematic view of the inlet cover of the present invention;
fig. 4 is a main sectional enlarged schematic view of the water outlet cover of the present invention.
In the figure:
1 is the water inlet cover, 2 is the seal inlay cover, 3 is "O" type sealing washer, 4 is the sealing head, 5 is expanding spring, 6 is the water outlet cover, 7 is the draw-in groove, 8 is the card ear.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples. The following description is given by way of example, but the scope of the invention should not be limited thereto.
The one-way valve with a built-in bushing of the embodiment is composed of a water inlet bushing 1, a sealing bushing 2, an O-shaped sealing ring 3, a sealing head 4, a telescopic spring 5 and a water outlet bushing 6.
The water inlet sleeve 1 is a revolving body with a step-shaped appearance and a step through hole in the center, and the diameter of the water inlet end of the revolving body is smaller and is a water inlet pipe joint; the diameter of the water outlet end is larger, more than two steps are arranged in the inner hole, and more than two L-shaped clamping grooves 7 are arranged on the outer wall of the inner hole; the part I on the left of the L shape of the clamping groove 7 is an axial groove and is directly opened to the right end of the outer wall for inserting the clamping lug 8; the first part on the right side of the L shape of the clamping groove 7 is an arc groove and is used for positioning the inserted back clamping lug 8.
The water outlet sleeve 6 is also a revolving body with a step-shaped appearance and a step through hole at the center, the diameter of the water inlet end of the revolving body is larger (slightly smaller than the inner diameter of the water outlet end of the water inlet sleeve 1), a step is arranged in the inner hole, and a clamping lug 8 matched with an L-shaped clamping groove 7 is arranged on the outer wall of the revolving body; the diameter of the water outlet end is smaller, and the water outlet end is a water outlet pipe joint.
The outer contour of the sealing insert 2 (which may be made of metal material or injection-molded plastic or vehicle plastic) is formed by stacking more than two disk-shaped bodies into a whole, and a step through hole is formed in the center of the disk-shaped bodies.
The sealing head 4 is composed of a spherical ball end (the diameter is smaller than the diameter of the inner hole of the water inlet end of the water outlet sleeve 6 and larger than the diameter of the inner hole of the water outlet end of the water outlet sleeve 6) and a rod-shaped rod tail end, and the small head of the step-shaped extension spring 5 is sleeved on the rod tail end.
During assembly, the sealing insert sleeve 2 is firstly arranged (the sealing insert sleeve and the sealing insert sleeve are integrated by a stamping or die injection molding method or a rubber piece filling method) in a stepped inner hole at the water outlet end of the water inlet sleeve 1 (the outer contour surface of the sealing insert sleeve and the hole wall of the inner hole step of the water inlet sleeve 1 form interference fit), then the O-shaped sealing ring 3 is arranged, the sealing head 4 sleeved with the extension spring 5 is arranged, the ball head end of the sealing head 4 is abutted against the inner hole end at the center of the sealing insert sleeve 2, then the water inlet end of the water outlet sleeve 6 is inserted into the stepped inner hole at the water outlet end of the water inlet sleeve 1 (at the moment, the clamping lug 8 on the outer wall of the water outlet sleeve 6 is allowed to follow the axial groove at the I part of the L-shaped clamping groove 7 on the outer wall of the water outlet end of the water inlet sleeve 1), and the water inlet sleeve 1 is rotated for a certain angle relative to the water outlet sleeve 6 after being inserted in place, the clamping lug 8 enters the arc groove of the first part of the L-shaped clamping groove 7 to realize positioning. At the moment, the seal insert sleeve 2, the O-shaped seal ring 3, the seal head 4 and the expansion spring 5 are positioned in an inner cavity formed by the water inlet sleeve 1 and the water outlet sleeve 6; wherein: on one hand, the water inlet end of the water outlet sleeve 6 props against the O-shaped sealing ring 3, so that the sealing between the water inlet sleeve 1 and the water outlet sleeve 6 is ensured; on the other hand, the big end of the ladder-shaped expansion spring 5 props against the step of the central hole of the water inlet end of the water outlet sleeve 6 and compresses the expansion spring 5, so that the ball end of the sealing head 4 tightly props against the inner hole end of the center of the sealing insert sleeve 2 to form sealing.
When the sealing device is used, a meson (namely water or oil or other liquid substances) enters from an inner hole of a water inlet pipe joint of the water inlet sleeve 1 according to the arrow direction, and when the pressure of the meson is smaller than the elastic force value of the extension spring 5, the ball head end of the sealing head 4 tightly props against the inner hole end of the center of the sealing insert sleeve 2 to form a sealing state, so that the flow of the meson is blocked, and the leakage-proof effect is realized; when the pressure of the meson is larger than the elastic force value of the extension spring 5, the ball end of the sealing head 4 is flushed away from the inner hole end at the center of the sealing insert sleeve 2, at the moment, the meson enters an inner cavity formed by the water inlet sleeve 1 and the water outlet sleeve 6 through the inner hole at the center of the sealing insert sleeve 2, and then is discharged through the inner hole of the water outlet pipe joint of the water outlet sleeve 6, so that the pressure relief and the meson discharge are realized.
The utility model discloses a built-in check valve who inlays the cover can use with washing, garment steamer, food processing electrical apparatus are supporting.
Claims (5)
1. A one-way valve with a built-in bushing comprises a water inlet bushing (1) and a water outlet bushing (6), wherein the water inlet end of the water outlet bushing (6) is inserted into the water outlet end of the water inlet bushing (1); the method is characterized in that: the water inlet sleeve (1) and the water outlet sleeve (6) form an inner cavity, and the water inlet sleeve also comprises a sealing assembly formed by a sealing insert sleeve (2), a sealing head (4) and a telescopic spring (5); the sealing insert sleeve (2) is arranged at the inner hole step part of the water inlet sleeve (1), the ball head end of the sealing head (4) abuts against the inner hole end of the sealing insert sleeve (2), the rod tail end of the sealing head (4) is sleeved with the end of the telescopic spring (5), and the tail end of the telescopic spring (5) abuts against the inner hole step part of the water outlet sleeve (6).
2. The built-in trim check valve according to claim 1, wherein: an O-shaped sealing ring (3) is also arranged between the inner hole step of the water inlet sleeve (1) and the water inlet end part of the water outlet sleeve (6).
3. The built-in insert check valve according to claim 1 or 2, wherein: more than two L-shaped clamping grooves (7) are formed in the inner wall of the water outlet end of the water inlet sleeve (1), and clamping lugs (8) matched with the clamping grooves (7) are arranged on the inner wall of the water inlet end of the water outlet sleeve (6).
4. The built-in trim check valve according to claim 3, wherein: the external contour of the sealing insert sleeve (2) is formed by stacking more than two disk-shaped bodies into a whole.
5. The built-in trim check valve according to claim 4, wherein: the outer contour surface of the sealing insert sleeve (2) is in interference fit with the hole wall of the inner hole step of the water inlet sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020927236.0U CN212202447U (en) | 2020-05-27 | 2020-05-27 | Built-in check valve who inlays cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020927236.0U CN212202447U (en) | 2020-05-27 | 2020-05-27 | Built-in check valve who inlays cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212202447U true CN212202447U (en) | 2020-12-22 |
Family
ID=73812118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020927236.0U Active CN212202447U (en) | 2020-05-27 | 2020-05-27 | Built-in check valve who inlays cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212202447U (en) |
-
2020
- 2020-05-27 CN CN202020927236.0U patent/CN212202447U/en active Active
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