CN217056386U

CN217056386U - High leakproofness PPR gate valve

Info

Publication number: CN217056386U
Application number: CN202220708324.0U
Authority: CN
Inventors: 李松山
Original assignee: Zhejiang Songshan Valve Co ltd
Current assignee: Zhejiang Songshan Valve Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-07-26
Anticipated expiration: 2032-03-29

Abstract

The utility model discloses a PPR gate valve with high sealing performance, which comprises a connecting pipe and a sealing structure, wherein a fixing mechanism is fixedly arranged on the connecting pipe, and the sealing structure is communicated with the inside of the connecting pipe, one end of the sealing structure passes through the fixing mechanism and is fixedly connected with the fixing mechanism, one end of the sealing structure is positioned in the connecting pipe, and is connected with the connecting pipe in a sliding way, the sealing structure comprises a sealing state and an opening state, one end of the sealing structure is positioned in the connecting pipe in the sealing state and the inside of the connecting pipe is completely filled, so that the two ends of the connecting pipe can not be communicated, when the connecting pipe is in an opening state, one end of the sealing structure is completely moved into the fixing mechanism, so that the two ends of the connecting pipe are communicated, the structure of the utility model is reasonable, one end of the sealing structure enters the inside of the connecting pipe, and plugging the inside of the connecting pipe and tightly adhering to the inside of the connecting pipe to finish the sealing of the connecting pipe.

Description

High leakproofness PPR gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to high leakproofness PPR gate valve.

Background

The valves are accessories for opening and closing pipelines, controlling flow direction, adjusting and controlling parameters (temperature, pressure and flow) of conveying media, can be divided into shut-off valves, check valves, adjusting valves and the like according to functions, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

The existing valve has the advantages that after the existing valve is used for a long time, the valve core and the pipeline are subjected to long-term friction, so that the surface of the valve core is abraded, the pipeline cannot be well sealed, and the pipeline is easy to leak. In view of the above problems, a solution is proposed as follows.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high leakproofness PPR gate valve has and expands pipeline internal diameter and increase case through the part, makes the case can still realize the advantage to the pipe seal after using for a long time.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a high leakproofness PPR gate valve, includes connecting pipe and seal structure, fixed establishment has set firmly on the connecting pipe, just seal structure and the inside communication with each other of connecting pipe, seal structure's one end is passed fixed establishment, and with fixed establishment fixed connection, seal structure's one end is located the connecting pipe, and with connecting pipe sliding connection, seal structure includes encapsulated situation and opening state, during encapsulated situation, seal structure's one end is located the connecting pipe, and fills the inside of connecting pipe completely to make the both ends of connecting pipe unable to communicate with each other, during the opening state, seal structure's one end immigration is to the fixed establishment completely in, so that the both ends of connecting pipe communicate with each other.

Preferably, the sealing structure comprises a driving mechanism and a valve core, the driving mechanism is connected with the valve core, the driving mechanism is used for driving the valve core to move so as to enable the valve core to be switched between a sealing state and an opening state, the valve core is cylindrical, and the diameter of the valve core is larger than the inner diameter of the connecting pipe.

Preferably, a sealing convex block is fixedly arranged on the connecting pipe, the sealing convex block is arranged around the connecting pipe and is located under the fixing mechanism, a sealing groove is formed in the sealing convex block and is communicated with the inside of the connecting pipe, one side of the valve core is located in the sealing groove and completely fills the sealing groove in the sealing state, and the sealing groove is used for expanding the inner diameter of the connecting pipe so that the valve core can seal the connecting pipe.

Preferably, an elastic member is fixedly arranged on the inner wall of the sealing groove, and the elastic member is in contact with the outer side of the valve core so as to increase the sealing performance of the valve core on the connecting pipe.

Preferably, the driving mechanism includes a fixing seat and a rotating shaft, the fixing seat is fixedly connected with the fixing mechanism, the rotating shaft is inserted into the fixing seat and rotatably connected with the fixing seat, an external thread is fixedly arranged at the lower end of the rotating shaft, a threaded hole is formed in the valve core, the lower end of the rotating shaft is in threaded connection with the valve core, and the rotating shaft is used for driving the valve core to move.

Preferably, the driving mechanism further comprises a hand wheel, the hand wheel is fixedly connected with the upper end of the rotating shaft, and the hand wheel is used for driving the rotating shaft to rotate.

Preferably, the fixing mechanism comprises a connecting seat, a connecting channel is formed in the connecting seat, the connecting channel is perpendicular to the connecting pipe and communicated with the inner cavity of the connecting pipe, the fixing seat is fixedly connected with the connecting seat, and the connecting seat is used for fixing the fixing seat so as to prevent the fixing seat from rotating along with the rotating shaft.

Preferably, the seal structure still moulds the layer including the package, the surface of connecting seat and connecting pipe is all by the layer parcel is moulded to the package, the layer is moulded to the package and is used for preventing connecting seat and connecting pipe damage.

The beneficial effects of the utility model are that: when using, rotate the hand wheel, the hand wheel can drive the axis of rotation and rotate to make the axis of rotation can drive the plug and remove, make the case change between open mode and encapsulated situation, when putting in encapsulated situation, the case can enter into the seal groove in, because the diameter of seal groove is greater than the internal diameter of connecting pipe, the case enters into the inside back of seal groove completely, can be to the complete shutoff of the inner channel with the connecting pipe, thereby realize the sealed to the connecting pipe. Because the diameter of the valve core is larger than that of the connecting pipe, the valve core is not prevented from plugging the connecting pipe after the valve core is worn, and the service life of the valve can be prolonged.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

fig. 2 is a cross-sectional view of the embodiment.

Reference numerals are as follows: 1. a connecting pipe; 2. a valve core; 3. sealing the bump; 4. a connecting channel; 5. an elastic member; 6. a fixed seat; 7. a rotating shaft; 8. a hand wheel; 9. a connecting seat.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper" and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1 and 2, a high sealing PPR gate valve includes a connection pipe 1 and a sealing structure. The both ends of connecting pipe 1 and outside pipe connection, seal structure include encapsulated situation and open mode, and during encapsulated situation, the one end of seal structure is located connecting pipe 1, and fills the inside of connecting pipe 1 completely to make the both ends of connecting pipe 1 unable to communicate with each other. In the open state, one end of the sealing structure is completely moved into the fixing mechanism so that the two ends of the connecting pipe 1 are communicated.

The connecting pipe 1 is fixedly provided with a fixing mechanism, the fixing mechanism comprises a connecting seat 9, a connecting channel 4 is formed in the connecting seat 9, the connecting channel 4 is perpendicular to the connecting pipe 1, and the connecting channel 4 is communicated with an inner cavity of the connecting pipe 1. One end of the sealing structure is inserted into the connecting channel 4 and enters the connecting pipe 1 through the connecting channel 4, so that the connecting pipe 1 is sealed.

The connecting pipe 1 is fixedly provided with a sealing convex block 3, the sealing convex block 3 is arranged around the connecting pipe 1, the sealing convex block 3 is positioned right below the fixing mechanism, and the sealing groove is formed in the sealing convex block 3 and communicated with the inside of the connecting pipe 1. The sealing groove enlarges the inner diameter of the connecting pipe 1 at the position of the sealing block, and a step shape is formed between the sealing groove and the inner channels of the connecting pipes 1 at two sides of the sealing groove.

Seal structure includes actuating mechanism and case 2, and the diameter of case 2 is greater than the diameter of 1 inner passage of connecting pipe, and after case 2 that actuating mechanism goes moved in the seal groove, case 2 can be filled the seal groove completely to make 1 inner passage of connecting pipe in seal groove place region filled completely, the realization is to connecting pipe 1's sealed. When the valve core 2 is completely moved into the connecting seat 9 from the sealing groove, the connecting pipe 1 is completely opened.

Set firmly on the inner wall of seal groove elastic component 5, elastic component 5 can reduce the wearing and tearing to case 2, and when connecting pipe 1 passed through the object, can prevent that debris from dropping in the seal groove to protect seal groove and case 2.

Actuating mechanism includes fixing base 6 and axis of rotation 7, and fixing base 6 and connecting seat 9 fixed connection, axis of rotation 7 insert locate in fixing base 6, and rotate with fixing base 6 and be connected, and connecting seat 9 can prevent fixing base 6 and rotate, can not drive fixing base 6 when making axis of rotation 7 rotate and rotate to make axis of rotation 7 can drive plug 2 and remove. The lower end of the rotating shaft 7 is fixedly provided with an external thread, the valve core 2 is provided with a threaded hole, and the lower end of the rotating shaft 7 is in threaded connection with the valve core 2. When the rotating shaft 7 rotates in the forward direction, the rotating shaft 7 drives the valve core 2 to move downwards, so that the valve core 2 is changed from an open state to a sealed state, and the connecting pipe 1 is sealed. When the rotating shaft 7 rotates reversely, the rotating shaft 7 drives the valve core 2 to move upwards, so that the valve core 2 is changed from a sealing state to an opening state, and two ends of the connecting pipe 1 are communicated.

The driving mechanism further comprises a hand wheel 8, the hand wheel 8 is fixedly connected with the upper end of the rotating shaft 7, and the hand wheel 8 can be better stressed, so that a user can more conveniently rotate the rotating shaft 7 and adjust the position and the state of the valve core 2.

Seal structure still moulds the layer including the package, and the layer parcel is all moulded by the package on the surface of connecting seat 9 and connecting pipe 1, and the layer is moulded to the package can prevent that connecting seat 9 and connecting pipe 1 from damaging, increases the life of connecting seat 9 and connecting pipe 1.

The working principle is as follows: when in use, the two ends of the connecting pipe 1 are respectively connected with an external pipeline. When needing to end the fluid circulation in the pipeline, forward rotation hand wheel 8, hand wheel 8 can drive axis of rotation 7 forward rotation to make axis of rotation 7 drive valve element 2 move into in the seal groove, 2 outer edge portions of case can extrude elastic component 5, and enter into in the seal groove, fill the seal groove, the main part of case 2 can carry out the shutoff to the inner passage of connecting pipe 1, realizes the shutoff to the fluid at connecting pipe 1 both ends.

The elastic member 5 can prevent the valve body from rigidly contacting the inside of the connection pipe 1, and slow down the abrasion speed of the valve core 2, thereby enhancing the service life of the valve core 2.

The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high leakproofness PPR gate valve, includes connecting pipe (1) and seal structure, its characterized in that, fixed establishment has set firmly on connecting pipe (1), just seal structure communicates with each other with connecting pipe (1) is inside, fixed establishment is passed to seal structure's one end, and with fixed establishment fixed connection, seal structure's one end is located connecting pipe (1), and with connecting pipe (1) sliding connection, seal structure includes encapsulated situation and open mode, during encapsulated situation, seal structure's one end is located connecting pipe (1), and fills the inside of connecting pipe (1) completely to make the both ends of connecting pipe (1) unable communicate with each other, during the open mode, seal structure's one end immigration is in to fixed establishment completely, so that the both ends of connecting pipe (1) communicate with each other.

2. The high-sealing PPR gate valve according to claim 1, wherein the sealing structure comprises a driving mechanism and a valve core (2), the driving mechanism is connected with the valve core (2), the driving mechanism is used for driving the valve core (2) to move so as to switch the valve core (2) between the sealing state and the opening state, the valve core (2) is cylindrical, and the diameter of the valve core (2) is larger than the inner diameter of the connecting pipe (1).

3. The high-sealing PPR gate valve according to claim 2, wherein a sealing protrusion (3) is fixedly arranged on the connecting pipe (1), the sealing protrusion (3) is arranged around the connecting pipe (1), the sealing protrusion (3) is located under the fixing mechanism, a sealing groove is arranged on the sealing protrusion (3), the sealing groove is communicated with the inside of the connecting pipe (1), in the sealing state, one side of the valve element (2) is located in the sealing groove, the sealing groove is completely filled, and the sealing groove is used for expanding the inner diameter of the connecting pipe (1) so that the valve element (2) can seal the connecting pipe (1).

4. The high-sealing PPR gate valve according to claim 3, wherein an elastic member (5) is fixed on the inner wall of the sealing groove, and the elastic member (5) contacts with the outer side of the valve core (2) to increase the sealing performance of the valve core (2) to the connecting pipe (1).

5. The PPR gate valve with high sealing performance according to claim 2, wherein the driving mechanism comprises a fixed seat (6) and a rotating shaft (7), the fixed seat (6) is fixedly connected with the fixed mechanism, the rotating shaft (7) is inserted into the fixed seat (6) and rotatably connected with the fixed seat (6), an external thread is fixedly arranged at the lower end of the rotating shaft (7), a threaded hole is formed in the valve element (2), the lower end of the rotating shaft (7) is in threaded connection with the valve element (2), and the rotating shaft (7) is used for driving the valve element (2) to move.

6. The PPR gate valve with high sealing performance according to claim 5, wherein the driving mechanism further comprises a hand wheel (8), the hand wheel (8) is fixedly connected with the upper end of the rotating shaft (7), and the hand wheel (8) is used for driving the rotating shaft (7) to rotate.

7. The high-sealing PPR gate valve according to claim 6, wherein the fixing mechanism comprises a connecting seat (9), the connecting seat (9) is provided with a connecting channel (4), the connecting channel (4) is perpendicular to the connecting pipe (1), the connecting channel (4) is communicated with the inner cavity of the connecting pipe (1), the fixing seat (6) is fixedly connected with the connecting seat (9), and the connecting seat (9) is used for fixing the fixing seat (6) to prevent the fixing seat (6) from rotating along with the rotating shaft (7).

8. The high leakproofness PPR gate valve of claim 7, characterized in that, seal structure still includes the plastic-coated layer, the surface of connecting seat (9) and connecting pipe (1) all is moulded the layer parcel by the plastic-coated layer, the plastic-coated layer is used for preventing connecting seat (9) and connecting pipe (1) damage.