CN217081490U

CN217081490U - PTFE (polytetrafluoroethylene) -lined plug valve

Info

Publication number: CN217081490U
Application number: CN202122204662.9U
Authority: CN
Inventors: 陈月标; 张琰
Original assignee: Jiangsu Pusheng Petrochemical Machinery Co ltd
Current assignee: Jiangsu Pusheng Petrochemical Machinery Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-07-29
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a lining PTFE cock valve, including the valve body, the bottom of valve body is installed the bottom, the internally mounted of bottom has the case, the inside of case is equipped with the through-hole, the top of valve body is installed first casing, the top of first casing is installed the second casing, the top of case passes valve body and first casing, the top of case is installed the valve rod, the top of valve rod is installed the connecting rod, and the connecting rod is hexagonal prism, the outside of connecting rod is overlapped in proper order and is equipped with clamp plate, connecting plate and handle, the inside of first casing and second casing is equipped with the screw hole, and the internal thread of screw hole is connected with the screw; the PTFE-lined plug valve is convenient to install and disassemble, simple and reasonable in structure, high in practicability and convenient to widely popularize and use.

Description

PTFE (polytetrafluoroethylene) -lined plug valve

Technical Field

The utility model relates to a cock valve technical field specifically is a lining PTFE cock valve.

Background

The PTFE-lined cock valve is mainly used for opening or closing a channel medium and can also be used for throttling, and has the characteristics of small fluid resistance, quick opening and closing (only the cock needs to be rotated by 90 degrees), simple structure and better sealing performance, and is suitable for being used on pipelines of strong alkali organic solvents with various concentrations and other corrosive gases and liquid media.

In the prior art, when a majority of lining PTFE cock valves are used, the disassembly and the assembly are complicated, and when some lining PTFE cock valves with poor quality are used, the phenomenon of thread sliding easily occurs at the positions of handles of the lining PTFE cock valves, so that the normal use of users is difficult to meet, therefore, the lining PTFE cock valves are improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a lining PTFE cock valve, which comprises a valve body, the bottom is installed to the bottom of valve body, the internally mounted of bottom has the case, the inside of case is equipped with the through-hole, first casing is installed at the top of valve body, the second casing is installed at the top of first casing, valve body and first casing are passed at the top of case, the valve rod is installed at the top of case, the connecting rod is installed at the top of valve rod, just the connecting rod is the hexagonal prism, the outside of connecting rod is overlapped in proper order and is equipped with clamp plate, connecting plate and handle, the inside of first casing and second casing is equipped with the screw hole, just the inside threaded connection of screw hole has the screw.

As a preferred technical scheme of the utility model, the screw rod is installed at the top of connecting rod, the outside cover of screw rod is equipped with first nut, the inside of first nut is equipped with the screw thread, just first nut and screw rod threaded connection.

As an optimal technical scheme of the utility model, the outside of valve rod is equipped with one deck sealing plug and gasket in proper order, just sealing plug and gasket are located between case and the second casing.

As an optimal technical scheme of the utility model, the bottom of bottom and case is the trapezoidal form of handstand, just be equipped with the one deck sealing washer between bottom and the case.

As a preferred technical scheme of the utility model, the inside of clamp plate is equipped with the screw hole, just the inside threaded connection of screw hole has the threaded rod, the outside cover of threaded rod is equipped with the second nut, the inside of second nut is equipped with the screw hole, just second nut and threaded rod threaded connection, just the second nut is located the top of clamp plate.

As an optimal technical scheme of the utility model, the top of second casing is installed first to the piece and the second is to the piece, just first to be 90 degrees vertical between piece and the second is supported, the threaded rod can with first to support the piece and the second supports the piece and laminates mutually.

The utility model has the advantages that:

1. according to the PTFE-lined plug valve, the first shell, the second shell and the screw are matched for use, so that a user can conveniently install and disassemble the valve element, and then the first nut, the screw, the connecting rod, the valve rod and the valve element are matched for use, so that the installation and the disassembly of parts such as a handle, a connecting plate, a pressing plate and the like in the device are facilitated, so that maintenance personnel can conveniently replace the parts;

2. according to the PTFE-lined plug valve, the bottom cover and the valve core are matched for use, so that the bottom cover and the valve core are convenient to disassemble and install, then the sealing ring is installed for use, the valve core is sealed on the bottom cover, the sealing effect of the interior of the valve body is improved, finally, the sealing plug and the gasket are arranged, the valve core is connected with the second shell in a sealing mode, and the sealing effect of the interior of the valve body is further improved; the PTFE-lined plug valve is convenient to install and disassemble, simple and reasonable in structure, high in practicability and convenient to widely popularize and use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of a PTFE-lined plug valve of the present invention;

FIG. 2 is a cross-sectional view of a PTFE-lined plug valve of the present invention;

FIG. 3 is a schematic view of the top mounting of a PTFE-lined plug valve stem of the present invention;

FIG. 4 is a top view of a PTFE-lined plug valve of the present invention;

FIG. 5 is a schematic view of the valve element and valve body of a PTFE-lined plug valve of the present invention;

FIG. 6 is an enlarged view of the structure A of FIG. 1 of a PTFE-lined plug valve of the present invention;

fig. 7 is an enlarged view of the structure B of fig. 3 of a PTFE lined plug valve of the present invention.

In the figure: 1. a valve body; 2. a first resisting block; 3. a valve core; 4. a through hole; 5. a first housing; 6. a second housing; 7. a screw; 8. a valve stem; 9. a gasket; 10. a sealing plug; 11. a seal ring; 12. a bottom cover; 13. a connecting rod; 14. pressing a plate; 15. a threaded rod; 16. a second resisting block; 17. a second nut; 18. a connecting plate; 19. a handle; 20. a screw; 21. a first nut.

Detailed Description

The preferred embodiments of the present invention will be described hereinafter with reference to the accompanying drawings, and it should be understood that the preferred embodiments described herein are merely for purposes of illustration and explanation, and are not intended to limit the present invention.

Example (b): as shown in fig. 1-7, the utility model relates to a lining PTFE cock valve, including valve body 1, bottom 12 is installed to the bottom of valve body 1, the internally mounted of bottom 12 has case 3, the inside of case 3 is equipped with through-hole 4, first casing 5 is installed at the top of valve body 1, second casing 6 is installed at the top of first casing 5, valve body 1 and first casing 5 are passed at the top of case 3, valve rod 8 is installed at the top of case 3, connecting rod 13 is installed at the top of valve rod 8, and connecting rod 13 is the hexagonal prism, the outside of connecting rod 13 overlaps in proper order and is equipped with clamp plate 14, connecting plate 18 and handle 19, the inside of first casing 5 and second casing 6 is equipped with the screw hole, and the internal thread of screw hole is connected with screw 7.

Wherein, screw rod 20 is installed at the top of connecting rod 13, and the outside cover of screw rod 20 is equipped with first nut 21, and the inside of first nut 21 is equipped with the screw thread, and first nut 21 and screw rod 20 threaded connection, through first nut 21 and screw rod 20 threaded connection, has realized the fixed between handle 19 and the connecting plate 18.

Wherein, the outside of valve rod 8 overlaps in proper order and is equipped with one deck sealing plug 10 and gasket 9, and sealing plug 10 and gasket 9 are located between case 3 and second casing 6, through one deck sealing plug 10 and gasket 9 that are equipped with, have realized the sealed effect between case 3 and the second casing 6.

Wherein, the bottom 12 and the bottom of case 3 are the trapezoidal form of handstand, and are equipped with one deck sealing washer 11 between bottom 12 and case 3, through the one deck sealing washer 11 that is equipped with between bottom 12 and case 3, have realized the sealed effect between bottom 12 and case 3.

Wherein, the inside of clamp plate 14 is equipped with the screw hole, and the inside threaded connection of screw hole has threaded rod 15, and the outside cover of threaded rod 15 is equipped with second nut 17, and the inside of second nut 17 is equipped with the screw hole, and

second nut

17 and 15 threaded connection of threaded rod, and second nut 17 is located the top of clamp plate 14, through

second nut

17 and 15 threaded connection of threaded rod, has realized the fixed effect between clamp plate 14 and the valve rod 8.

The top of the second shell 6 is provided with a first abutting block 2 and a second abutting block 16, the first abutting block 2 and the second abutting block 16 are perpendicular to each other at 90 degrees, the threaded rod 15 can be attached to the first abutting block 2 and the second abutting block 16, and the threaded rod 15 can be attached to the first abutting block 2 or the second abutting block 16 after rotating for 90 degrees through the first abutting block 2 and the second abutting block 16 arranged at the top of the second shell 6.

The working principle is as follows: when the valve is used, the handle 19 is rotated clockwise, one side of the threaded rod 15 is attached to the second abutting block 16, the valve core 3 is rotated through the cooperation of the threaded rod 20, the connecting rod 13, the valve rod 8, the valve core 3 and the through hole 4, the through hole 4 rotates under the action of the valve core 3 and is aligned with a feeding hole and a discharging hole of the valve body 1, when the valve is closed, the handle 19 is rotated anticlockwise, one side of the threaded rod 15 is attached to the first abutting block 2, the through hole 4 rotates under the action of the valve core 3 to realize the sealing of the interior of the valve body 1, when the valve is disassembled, the screw 7 is unscrewed to realize the sealing between the first shell 5 and the second shell 6, the first nut 21 is unscrewed again to sequentially realize the separation among the handle 19, the connecting plate 18, the pressing plate 14 and the valve rod 8, and further achieve the disassembling effect; the PTFE-lined plug valve is convenient to install and disassemble, simple and reasonable in structure, high in practicability and convenient to widely popularize and use.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The PTFE-lined plug valve comprises a valve body (1) and is characterized in that a bottom cover (12) is installed at the bottom of the valve body (1), a valve core (3) is installed inside the bottom cover (12), a through hole (4) is formed inside the valve core (3), a first shell (5) is installed at the top of the valve body (1), a second shell (6) is installed at the top of the first shell (5), the top of the valve core (3) penetrates through the valve body (1) and the first shell (5), a valve rod (8) is installed at the top of the valve core (3), a connecting rod (13) is installed at the top of the valve rod (8), the connecting rod (13) is a hexagonal prism body, a pressing plate (14), a connecting plate (18) and a handle (19) are sequentially sleeved outside the connecting rod (13), threaded holes are formed inside the first shell (5) and the second shell (6), and the inner thread of the threaded hole is connected with a screw (7).

2. A PTFE-lined plug valve according to claim 1, wherein a screw (20) is mounted on the top of the connecting rod (13), a first nut (21) is sleeved on the outer side of the screw (20), a thread is arranged in the first nut (21), and the first nut (21) is in threaded connection with the screw (20).

3. A PTFE-lined plug valve according to claim 1, wherein a layer of sealing plug (10) and gasket (9) are sequentially fitted on the outside of the valve stem (8), and the sealing plug (10) and gasket (9) are located between the valve element (3) and the second housing (6).

4. A PTFE-lined stopcock valve as claimed in claim 1, wherein the bottom of the bottom cap (12) and the valve core (3) are inverted trapezoidal, and a layer of sealing ring (11) is provided between the bottom cap (12) and the valve core (3).

5. A PTFE-lined plug valve according to claim 1, wherein the pressing plate (14) is internally provided with a threaded hole, the threaded hole is internally and threadedly connected with a threaded rod (15), the outer side of the threaded rod (15) is sleeved with a second nut (17), the second nut (17) is internally provided with a threaded hole, the second nut (17) is threadedly connected with the threaded rod (15), and the second nut (17) is positioned on the top of the pressing plate (14).

6. The PTFE-lined plug valve according to claim 5, wherein a first abutting block (2) and a second abutting block (16) are installed at the top of the second shell (6), the first abutting block (2) and the second abutting block (16) are perpendicular to each other at an angle of 90 degrees, and the threaded rod (15) can be attached to the first abutting block (2) and the second abutting block (16).