CN218267402U

CN218267402U - Compact check valve

Info

Publication number: CN218267402U
Application number: CN202222387787.4U
Authority: CN
Inventors: 赵艳梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-10
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a compact check valve relates to check valve technical field. The utility model discloses a valve body, bolt fixedly connected with sealed lid is passed through at the top of valve body, and one side of valve body is provided with the feed liquor end, and the feed liquor end all is provided with flange with the port position department of going out the liquid end, and the toper logical groove has still been seted up with the junction of going out the liquid end to the inside feed liquor end of valve body, and the inside butt that the toper led to the groove has sealed head, the top fixedly connected with valve rod of sealed head. The utility model discloses a it leads to the groove to set up the toper in the inside of valve body to set up taper rubber stopper on sealed head, through making taper rubber stopper's week lateral wall butt on the inner wall that the toper led to the groove, can be to the inside effectual sealing of valve body, simultaneously through setting up annular seal receptacle in the inside of valve body, and set up annular seal recess in the bottom of rubber seal receptacle, can further seal the inside of this compact check valve, can effectively avoid appearing liquid reflux in the valve body.

Description

Compact check valve

Technical Field

The utility model belongs to the technical field of the check valve, especially, relate to a compact check valve.

Background

The compact check valve on the market generally comprises a valve body, a sealing cover, a spring, a valve rod and a sealing element, wherein when the upward pressure of the liquid on the sealing element is greater than the downward pressure of the spring on the sealing element in the process of conveying the liquid, the sealing element moves upwards, the check valve is in an open state, and otherwise, the check valve is in a closed state. However, in the existing compact check valve, the sealing member is usually in a circular plate-shaped structure, and the communication port inside the compact check valve is covered by the circular plate-shaped sealing member to open and close the compact check valve.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a compact check valve, which comprises a valve body, the sealed lid of bolt fixedly connected with is passed through at the top of valve body, one side of valve body is provided with the feed liquor end, and the opposite side of feed liquor end is provided with out the liquid end, the feed liquor end all is provided with flange with the port position department of going out the liquid end, the inside feed liquor end of valve body has still seted up the toper with the junction that goes out the liquid end and has led to the groove, the inside butt that the toper led to the groove has sealed head, the top fixedly connected with valve rod of sealed head, the upper end elastic connection of valve rod is in the connecting seat, the toper leads to and still fixedly connected with annular seal receptacle in the valve body of groove position department.

Preferably, the top of the connecting seat is fixedly connected to the bottom of the sealing cover, and a spring is further placed inside the connecting seat.

Preferably, the upper end of the valve rod extends into the connecting seat, the upper end of the spring abuts against the inner wall of the connecting seat, and the lower end of the spring abuts against the valve rod.

Preferably, sealed head includes rubber seal seat, taper rubber stopper and protection base, rubber seal seat and taper rubber stopper's top fixed connection, protection base and taper rubber stopper's bottom fixed connection.

Preferably, the bottom of the rubber seal seat is provided with an annular seal groove, and the lower edge of the protection base is provided with a fillet.

Preferably, the peripheral side wall of the conical rubber plug abuts against the side wall of the conical through groove.

Preferably, the top of the annular sealing seat is provided with an annular sealing bulge, and the annular sealing bulge is connected with the annular sealing groove in a matched manner.

The utility model discloses following beneficial effect has:

the utility model discloses a it leads to the groove to set up the toper in the inside of valve body, and set up the taper rubber buffer on sealed overhead, week lateral wall butt through making the taper rubber buffer is on the inner wall that the toper leads to the groove, can lead to the groove to carry out effectual shutoff to the toper, good sealed effect has, simultaneously through setting up the annular seal receptacle in the inside of valve body, and set up the annular seal recess in the bottom of rubber seal receptacle, the taper rubber buffer butt is in the groove is led to the toper in, the annular seal arch on the annular seal receptacle can support into the annular seal recess, further seal the inside of this compact check valve, can effectively avoid appearing liquid reflux in the compact check valve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments 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 that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of a compact check valve of the present invention;

FIG. 2 is a front view of the internal structure of a compact check valve of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 of the compact check valve of the present invention;

fig. 4 is a three-dimensional structure diagram of the sealing head and the annular sealing seat in the compact check valve of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a valve body; 11. a liquid inlet end; 12. a liquid outlet end; 13. a tapered through slot; 2. a sealing cover; 3. a connecting flange; 4. a connecting seat; 5. a spring; 6. a valve stem; 7. a sealing head; 71. a rubber seal seat; 711. an annular seal groove; 72. a conical rubber plug; 73. a protective base; 8. an annular seal seat; 81. an annular sealing protrusion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model relates to a compact check valve, including valve body 1, bolt fixedly connected with seals lid 2 is passed through at the top of valve body 1, one side of valve body 1 is provided with feed liquor end 11, and the opposite side of feed liquor end 11 is provided with out liquid end 12, feed liquor end 11 all is provided with flange 3 with the port position department of going out liquid end 12, the groove 13 is led to the toper has still been seted up with the junction of going out liquid end 12 to the inside feed liquor end 11 of valve body 1, the inside butt joint that the groove 13 is led to the toper has sealed head 7, the top fixedly connected with valve rod 6 of sealed head 7, the upper end elastic connection of valve rod 6 is in connecting seat 4, the toper leads to and still fixedly connected with annular seal receptacle 8 in the valve body 1 of groove 13 position department.

Further, the top fixed connection of connecting seat 4 has still placed spring 5 in the bottom of sealed lid 2, the inside of connecting seat 4, and the upper end of valve rod 6 extends to in the connecting seat 4, and the upper end butt of spring 5 is on the inner wall of connecting seat 4, and the lower extreme butt of spring 5 is on valve rod 6, through the spring 5 that sets up, can drive valve rod 6 together with sealed head 7 downstream, can be through sealed head 7 with the automatic airtight of this compact check valve.

Further, sealing head 7 includes rubber seal seat 71, taper rubber stopper 72 and protection base 73, and rubber seal seat 71 and taper rubber stopper 72's top fixed connection, protection base 73 and taper rubber stopper 72's bottom fixed connection.

Further, the bottom of the rubber seal seat 71 is provided with an annular sealing groove 711, and the lower edge of the protection base 73 is provided with a fillet, so that the protection base 73 can be better inserted into the tapered through groove 13.

Further, the peripheral lateral wall butt of taper rubber stopper 72 is on the lateral wall that the groove 13 was led to the toper, and the peripheral lateral wall of taper rubber stopper 72 is the toper setting, and the inner wall that the groove 13 was led to the toper also is the toper setting, and taper rubber stopper 72 leads to the groove 13 with the toper and is the toper of handstand, can be at the in-process that sealing head 7 moved down for the peripheral lateral wall of taper rubber stopper 72 can be effectual and the peripheral lateral wall that the groove 13 was led to the toper realize closely laminating, has better water-proof effects.

Further, the top of annular seal seat 8 is provided with annular seal arch 81, and annular seal arch 81 is connected with the cooperation of annular seal recess 711, and annular seal arch 81's cross-section is circular three-fifth of a circle setting, through making annular seal arch 81 support in annular seal recess 711, can be to the further separation of feed liquor end 11 with play liquid end 12, further improvement valve body 1's leakproofness, can effectually prevent the liquid backward flow.

When the compact check valve is used for conveying liquid, the compact check valve can be installed on a liquid conveying pipeline, when the liquid is conveyed, the liquid can enter the valve body 1 through the liquid inlet end 11, the liquid entering the valve body 1 can upwards extrude the sealing head 7, so that the sealing head 7 upwards moves, the sealing head 7 upwards moves to drive the valve rod 6 to move towards the connecting seat 4 and compress the spring 5, at the moment, the liquid inside the valve body 1 can enter the liquid outlet end 12 through the tapered through groove 13, smooth conveying of the liquid is realized, when the liquid stops conveying, the upward pressure of the liquid on the sealing head 7 is smaller than the downward pressure of the spring 5 on the sealing head 7, at the moment, the sealing head 7 can automatically downwards move and reset, the peripheral side wall of the tapered rubber plug 72 is abutted against the inner wall of the tapered through groove 13 to plug the tapered through groove 13, meanwhile, the sealing head 7 downwards moves, the annular sealing bulge 81 on the upper portion of the annular sealing seat 8 is abutted into the annular sealing groove 711 at the bottom of the rubber sealing seat, further sealing isolation between the liquid inlet end 11 and the liquid outlet end 12 can be effectively prevented from flowing back in the valve body 1.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solution recorded in the foregoing embodiments is modified, and some technical features are replaced by equivalent, all belonging to the protection scope of the present invention.

Claims

1. The utility model provides a compact check valve, includes valve body (1), the sealed lid (2) of bolt fixedly connected with is passed through at the top of valve body (1), one side of valve body (1) is provided with feed liquor end (11), and the opposite side of feed liquor end (11) is provided with out liquid end (12), feed liquor end (11) all are provided with flange (3), its characterized in that with the port position department of going out liquid end (12): the connecting department of valve body (1) inside feed liquor end (11) and play liquid end (12) has still seted up the toper and has led to groove (13), the inside butt joint that the toper led to groove (13) has sealed head (7), the top fixedly connected with valve rod (6) of sealed head (7), the upper end elastic connection of valve rod (6) is in connecting seat (4), the toper leads to still fixedly connected with annular seal receptacle (8) in valve body (1) of groove (13) position department.

2. A compact non-return valve according to claim 1, characterized in that the top of the connecting seat (4) is fixedly connected to the bottom of the sealing cover (2), and a spring (5) is also placed inside the connecting seat (4).

3. A compact non-return valve according to claim 2, characterized in that the upper end of the valve rod (6) extends into the connecting seat (4), the upper end of the spring (5) abuts on the inner wall of the connecting seat (4) and the lower end of the spring (5) abuts on the valve rod (6).

4. The compact check valve according to claim 1, characterized in that the sealing head (7) comprises a rubber sealing seat (71), a conical rubber plug (72) and a protection base (73), the rubber sealing seat (71) is fixedly connected with the top of the conical rubber plug (72), and the protection base (73) is fixedly connected with the bottom of the conical rubber plug (72).

5. The compact non-return valve according to claim 4, characterized in that the bottom of the rubber sealing seat (71) is provided with an annular sealing groove (711), and the lower edge of the protection base (73) is provided with a rounded corner.

6. A compact non-return valve according to claim 4, characterized in that the peripheral side wall of the conical rubber plug (72) abuts against the side wall of the conical through slot (13).

7. A compact non-return valve according to claim 1, characterized in that the top of the annular sealing seat (8) is provided with an annular sealing protrusion (81), and the annular sealing protrusion (81) is in a fitting connection with the annular sealing groove (711).