CN218761607U

CN218761607U - Joint style replacement check valve

Info

Publication number: CN218761607U
Application number: CN202222700981.3U
Authority: CN
Inventors: 沙文辉
Original assignee: Tianjin Water Seal Zhongyou Valve Co ltd
Current assignee: Tianjin Water Seal Zhongyou Valve Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-28
Anticipated expiration: 2032-10-14

Abstract

The utility model relates to a check valve technical field specifically is a connect pattern replacement type check valve, include: one end of the joint is fixedly connected with a connecting pipe; the upper end of the elastic pin is inserted into a clamping groove on the outer wall of the joint through a fixing column, and the lower end of the elastic pin is fixedly connected with the outer wall of the water outlet pipe through a connecting block; the inner wall of the water outlet pipe is in threaded connection with a connecting pipe; the beneficial effects are that: insert the outlet pipe with the connecting pipe that connects one end, the rotary joint, make connecting pipe and outlet pipe threaded connection, because be equipped with the sealing washer in the outlet pipe, so at rotatory in-process, with the tight subsides of sealing washer on the inner wall of outlet pipe, the leakproofness of outlet pipe has been increased, connect after arriving suitable position, insert the draw-in groove on the joint outer wall with the fixed column on the elasticity pin inside, make to connect to fix in a certain position motionless, play positioning joint's effect, unexpected unscrewing joint when preventing to use, cause and drop.

Description

Joint style replacement check valve

Technical Field

The utility model relates to a check valve technical field specifically is a connect pattern replacement type check valve.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The motion mode of the valve clack is divided into a lifting type and a swing type.

Chinese patent CN201510188736.0 discloses a three-way check valve, which comprises a valve body, the front end of valve body has horizontal portion of intaking, and the rear end of valve body has horizontal play water portion, and the middle part top of valve body has last water inlet portion, and the middle part of valve body articulates there is the apron, and the apron covers the play water end of horizontal portion of intaking, the play water end of horizontal play water portion has the annular groove, is fixed with the filter screen device in the annular groove. It can be applied to the tee bend pipeline and guarantee wherein two pipelines prevent the medium refluence, and it can filter impurity moreover, need not to set up filter equipment in the pipeline again, and its filter effect is good, reduce cost.

However, the joint of the check valve is generally screwed by a screw, and the joint cannot be fixed to the pipe opening of the water stop valve, and is easily accidentally unscrewed during use, thereby causing the fall-off.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a connect pattern replacement type check valve to solve the problem of the location that the joint that proposes in the above-mentioned background art can not be fine.

In order to achieve the above object, the utility model provides a following technical scheme: a fitting style replacement check valve comprising: one end of the joint is fixedly connected with a connecting pipe;

the upper end of the elastic pin is inserted into a clamping groove on the outer wall of the connector through a fixed column, and the lower end of the elastic pin is fixedly connected with the outer wall of the water outlet pipe through a connecting block; and

and the inner wall of the water outlet pipe is in threaded connection with a connecting pipe.

Preferably, a clamping groove is formed in the middle of the outer wall of the joint, a second internal thread is arranged on the inner wall of the joint, and an external thread is arranged on the outer wall of the connecting pipe.

Preferably, the inner wall of the water outlet pipe is provided with a first internal thread, and the outer wall of the first internal thread is provided with a sealing ring.

Preferably, one end of the fixing column is fixedly connected with the elastic pin, and the fixing column is inserted into the middle lower part of the clamping groove.

Preferably, the outer wall of one side of the connecting block is fixedly connected with the elastic pin, and the other end of the connecting block is fixedly connected with the outer wall of the water outlet pipe.

Preferably, the outer wall of the water outlet pipe is sleeved with a dust cover, and a dust screen is arranged in the dust cover.

Preferably, the external thread on the connecting pipe is in threaded connection with the first internal thread of the water outlet pipe, and the sealing ring is clamped between the external thread and the first internal thread.

Compared with the prior art, the beneficial effects of the utility model are that:

insert the outlet pipe with the connecting pipe that connects one end, the rotary joint, make connecting pipe and outlet pipe threaded connection, because be equipped with the sealing washer in the outlet pipe, so at rotatory in-process, with the sealing washer tight paste on the inner wall of outlet pipe, the leakproofness of outlet pipe has been increased, connect after arriving suitable position, with the fixed column on the elasticity pin insert connect the draw-in groove on the outer wall inside, make the joint fix in a certain position motionless, play positioning joint's effect, unexpected unscrewing joint when preventing to use, cause and drop.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a sectional view of the overall structure of the present invention;

fig. 3 is a front view of the joint and the water outlet pipe of the present invention.

In the figure: 1. a water outlet pipe; 2. a first internal thread; 3. a seal ring; 4. a joint; 5. a connecting pipe; 6. connecting blocks; 7. an elastic pin; 8. fixing a column; 9. a card slot; 10. an external thread; 11. a second internal thread; 12. a dust cover; 13. and (4) a dust screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are illustrative of some, but not all, embodiments of the invention and are not to be construed as limiting the scope of the invention, as those skilled in the art will recognize and appreciate that many other embodiments can be made without inventive faculty.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For simplicity and illustrative purposes, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 3, the present invention provides a technical solution: a fitting style replacement check valve comprising: the connector 4 is characterized in that one end of the connector 4 is fixedly connected with a connecting pipe 5, a clamping groove 9 is formed in the middle of the outer wall of the connector 4, a second internal thread 11 is formed in the inner wall of the connector 4, and an external thread 10 is formed in the outer wall of the connecting pipe 5;

the water outlet pipe comprises an elastic pin 7, wherein the upper end of the elastic pin 7 is inserted into a clamping groove 9 in the outer wall of a connector 4 through a fixing column 8, the lower end of the elastic pin 7 is fixedly connected with the outer wall of a water outlet pipe 1 through a connecting block 6, one end of the fixing column 8 is fixedly connected with the elastic pin 7, the fixing column 8 is inserted into the middle lower part of the clamping groove 9, the outer wall of one side of the connecting block 6 is fixedly connected with the elastic pin 7, the other end of the connecting block 6 is fixedly connected with the outer wall of the water outlet pipe 1, a dust cover 12 is sleeved on the outer wall of the water outlet pipe 1, and a dust cover 13 is arranged inside the dust cover 12; and

outlet pipe 1, outlet pipe 1's inner wall threaded connection has connecting pipe 5, and outlet pipe 1's inner wall is provided with first internal thread 2, and first internal thread 2's outer wall is provided with sealing washer 3, and the mutual threaded connection of the external screw thread 10 on the connecting pipe 5 and outlet pipe 1's first internal thread 2, sealing washer 3 clamp are between external screw thread 10 and first internal thread 2.

This device during operation, insert outlet pipe 1 with the connecting pipe 5 that connects 4 one end, rotary joint 4, make connecting pipe 5 and 1 threaded connection of outlet pipe, because be equipped with sealing washer 3 in the outlet pipe 1, so at rotatory in-process, with the tight subsides of sealing washer 3 on the inner wall of outlet pipe 1, the leakproofness of outlet pipe 1 has been increased, connect 4 after arriving suitable position, insert the draw-in groove 9 inside on the 4 outer walls of joint with fixed column 8 on the elastic pin 7, make joint 4 fix a certain position motionless, play the effect of positioning joint 4, unexpected unscrewing joint 4 when preventing to use, cause and drop.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A connect style replacement type check valve which characterized in that: the method comprises the following steps:

one end of the joint (4) is fixedly connected with a connecting pipe (5);

the upper end of the elastic pin (7) is inserted into a clamping groove (9) on the outer wall of the connector (4) through a fixed column (8), and the lower end of the elastic pin (7) is fixedly connected with the outer wall of the water outlet pipe (1) through a connecting block (6); and

the inner wall of the water outlet pipe (1) is connected with a connecting pipe (5) in a threaded manner.

2. A fitting style replacement check valve according to claim 1, wherein: a clamping groove (9) is formed in the middle of the outer wall of the joint (4), a second internal thread (11) is arranged on the inner wall of the joint (4), and an external thread (10) is arranged on the outer wall of the connecting pipe (5).

3. A fitting style replacement check valve according to claim 2, wherein: the inner wall of outlet pipe (1) is provided with first internal thread (2), the outer wall of first internal thread (2) is provided with sealing washer (3).

4. A joint style replacement check valve as claimed in claim 3, wherein: one end of the fixing column (8) is fixedly connected with the elastic pin (7), and the fixing column (8) is inserted into the middle lower part of the clamping groove (9).

5. A joint style replacement check valve as claimed in claim 4, wherein: the outer wall of one side of the connecting block (6) is fixedly connected with the elastic pin (7), and the other end of the connecting block (6) is fixedly connected with the outer wall of the water outlet pipe (1).

6. A joint style replacement check valve as claimed in claim 5, wherein: the outer wall cover of outlet pipe (1) has dust cover (12), the inside of dust cover (12) is provided with dust screen (13).

7. A joint style replacement check valve as claimed in claim 6, wherein: the water outlet pipe is characterized in that an external thread (10) on the connecting pipe (5) is in threaded connection with a first internal thread (2) of the water outlet pipe (1), and the sealing ring (3) is clamped between the external thread (10) and the first internal thread (2).