CN212203356U

CN212203356U - Valve seat backrest valve with good sealing performance of opening and closing piece

Info

Publication number: CN212203356U
Application number: CN202020759163.9U
Authority: CN
Inventors: 米锦山
Original assignee: Tianjin Xinchangyuan Valve Co ltd
Current assignee: Tianjin Xinchangyuan Valve Co ltd
Priority date: 2020-05-11
Filing date: 2020-05-11
Publication date: 2020-12-22
Anticipated expiration: 2030-05-11

Abstract

The utility model discloses a disk seat back valve that opening and close piece sealing performance is good, including valve housing, annular seal gasket A and annular seal gasket B, valve housing's top is connected with rigid coupling through oxygen welding, rigid coupling's upper end is provided with the installation piece, the top and the bottom of installation piece are provided with bearing A and bearing B respectively, the one end of installation piece is provided with the connecting rod, the inside of installation piece is provided with the center pin, valve housing's inside is provided with the piece that opens and close, the peripheral one side of opening and close piece is provided with annular seal gasket A, inside one side of installation piece is provided with the movable groove, valve housing's the inside carbon fiber quartz heating pipe that inlays of casing is provided with, the peripheral opposite side of opening and close piece is provided with annular seal gasket B. The utility model discloses the effect is showing, easy operation, and durable can satisfy the work demand, is fit for generally promoting.

Description

Valve seat backrest valve with good sealing performance of opening and closing piece

Technical Field

The utility model relates to a valve equipment technical field, in particular to disk seat back valve that opening and close piece sealing performance is good.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, but the sealing performance of a starting and closing part in the traditional valve is not very good, so that medium leakage in a pipeline is easily caused, meanwhile, the traditional valve does not have the function of performing anti-freezing protection on the valve and fluid flowing through the valve, so that the practicability of the traditional valve is poor, and therefore, a valve seat backrest valve with good sealing performance of the starting and closing part is needed.

Application number 201721114384.5's utility model discloses a valve, including valve body and quick-open valve core, the case sets up inside the valve body, water inlet and delivery port have been seted up respectively at both ends around the valve body, a inspection hole has still been seted up to the top of valve body, install a detection table in the inspection hole, a rotary switch is installed to quick-open valve core top, rotary switch sets up the valve body the place ahead at the valve body. The utility model discloses install rotary switch on the lateral wall of valve body, can effectively solve when the valve body is close to objects such as wall, the problem that the user can not be very convenient carry out relevant operation to the valve.

Although the valve has the function of facilitating the user to perform relevant operations on the valve, the following disadvantages still exist: 1. the sealing performance of the opening and closing part of the valve is not good, and the medium in the conveying pipeline is easy to leak. 2. The valve does not have the function of performing anti-freezing protection on the valve and fluid flowing through the valve, and the valve is easy to lose the function due to low temperature. 3. The valve has no function of limiting and protecting the rotating part of the valve.

Disclosure of Invention

The main object of the utility model is to provide a disk seat back valve that opening and closing member sealing performance is good, can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the valve seat backrest valve comprises a valve shell, an annular sealing gasket A and an annular sealing gasket B, wherein the top of the valve shell is connected with a rigid coupling through oxygen welding, an installation block is arranged at the upper end of the rigid coupling, a bearing A and a bearing B are respectively arranged at the top and the bottom of the installation block, a connecting rod is arranged at one end of the installation block, a central shaft is arranged inside the installation block, a starting and closing piece is arranged inside the valve shell, the annular sealing gasket A is arranged on one side of the periphery of the starting and closing piece, a movable groove is formed in one side of the inside of the installation block, a carbon fiber quartz heating pipe is embedded inside the shell of the valve shell, and the annular sealing gasket B is arranged on the other side of the periphery of the starting and closing piece.

Further, a fixed block is arranged between the rigid coupling and the mounting block through arc welding.

Furthermore, one end of the central shaft is connected with the bearing A, and the other end of the central shaft penetrates through the bearing B, the rigid coupler and the valve shell respectively and is connected with the top of the opening and closing piece in a welding mode.

Furthermore, the periphery of one end of the connecting rod is sleeved with a rubber anti-slip sleeve, and the other end of the connecting rod is positioned in the movable groove and is connected with the central shaft in a welding mode.

Further, the inside of valve housing is provided with the mounting groove, the carbon fiber quartz heating pipe is located the mounting groove.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. through annular seal gasket A and annular seal gasket B, annular seal gasket A and annular seal gasket B are located the peripheral both sides of opening and close piece respectively, can strengthen the leakproofness of opening and close piece simultaneously from two directions, provide double seal protection for opening and close piece, and the inner circle diameter of annular seal gasket A and annular seal gasket B is slightly greater than the outer lane diameter of opening and close piece simultaneously, therefore annular seal gasket A and annular seal gasket B can not influence the rotation of opening and close piece.

2. Through the carbon fiber quartz heating pipe, the carbon fiber quartz heating pipe has characteristics such as long service life, electric heat conversion efficiency height, and the carbon fiber quartz heating pipe heaies up soon, it is even to generate heat, thermal inertia is little, and dielectric strength is high, can carry out the bidirectional heating in the periphery of opening and close piece, and the inside opening and close piece that can make and the medium of the valve of flowing through do not solidify because of the low temperature, outwards can heat the protection to valve housing, avoids valve housing to be frostbitten, and then the powerful normal operating of guaranteeing this novel valve.

3. Through rigid coupling, installation piece and fixed block, rigid coupling plays the effect of centralizer in other words to the lower extreme of center pin, and the fixed block can be so that the installation piece can closely link to each other with rigid coupling, and the bent angle department of the activity groove in the installation piece is 90 degrees, can carry out spacing protection to the center pin, and it is easier when the personnel that bearing A and bearing B can make rotate.

Drawings

Fig. 1 is a front view of a valve seat back valve with a good sealing performance of the opening and closing member of the present invention.

Fig. 2 is a schematic view of the mounting block structure of the valve seat back valve of the present invention with a good sealing performance of the opening and closing member.

Fig. 3 is a schematic structural view of the carbon fiber quartz heating tube of the valve seat back valve of the present invention with good sealing performance of the opening and closing member.

Fig. 4 is a schematic structural view of the opening and closing member of the valve seat back valve with good sealing performance of the opening and closing member, the annular sealing gasket a and the annular sealing gasket B of the present invention.

In the figure: 1. a valve housing; 2. a rigid coupling; 3. mounting blocks; 4. a fixed block; 5. a bearing A; 6. a bearing B; 7. a connecting rod; 8. a rubber anti-slip sleeve; 9. a central shaft; 10. connecting the ear plates; 11. an opening and closing member; 12. an annular sealing gasket A; 13. a movable groove; 14. a carbon fiber quartz heating pipe; 15. annular seal gasket B.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-4, a valve seat backrest valve with good sealing performance of a starting and closing member comprises a valve shell 1, an annular sealing gasket A12 and an annular sealing gasket B15, the top of the valve shell 1 is connected with a rigid coupling 2 through oxygen welding, the upper end of the rigid coupling 2 is provided with a mounting block 3, the top and the bottom of the mounting block 3 are respectively provided with a bearing A5 and a bearing B6, one end of the mounting block 3 is provided with a connecting rod 7, the inside of the mounting block 3 is provided with a central shaft 9, the inside of the valve shell 1 is provided with a starting and closing piece 11, an annular sealing gasket A12 is arranged on one side of the periphery of the opening and closing piece 11, a movable groove 13 is arranged on one side of the inner part of the mounting block 3, the carbon fiber quartz heating pipe 14 is embedded in the valve housing 1, and the annular sealing gasket B15 is arranged on the other side of the periphery of the opening and closing member 11.

And a fixed block 4 is arranged between the rigid coupling 2 and the mounting block 3 through arc welding.

In this embodiment, as shown in fig. 1 and 2, the fixing block 4 can enhance the stability between the rigid coupler 2 and the mounting block 3.

One end of the central shaft 9 is connected with a bearing A5, and the other end of the central shaft 9 penetrates through the bearing B6, the rigid coupling 2 and the valve housing 1 respectively and is connected with the top of the opening and closing piece 11 in a welding mode.

In this embodiment, as shown in fig. 1, the bearing a5 can promote the central shaft 9 to rotate better.

The rubber anti-skidding sleeve 8 is sleeved on the periphery of one end of the connecting rod 7, and the other end of the connecting rod 7 is located inside the movable groove 13 and is connected with the central shaft 9 in a welding mode.

In this embodiment, as shown in fig. 1 and 2, a person can drive the central shaft 9 to rotate by the connecting rod 7.

Wherein, the inside of valve housing 1 is provided with the mounting groove, carbon fiber quartz heating pipe 14 is located the mounting groove.

In this embodiment, as shown in fig. 3, the carbon fiber quartz heating tube 14 can be more stably installed in the valve housing 1.

It should be noted that the utility model relates to a valve seat backrest valve with good sealing performance of the opening and closing member, when in use, the novel device is powered on, personnel can hold the rubber anti-slip sleeve 8 tightly to rotate the connecting rod 7, the rubber anti-slip sleeve 8 can increase the friction between the hand of the personnel and the connecting rod 7 to further drive the central shaft 9 to rotate, and the bearing A5 can promote the rotation of the central shaft 9, so that the rotation is more labor-saving and easy, the personnel can control the flow rate of fluid in the pipeline through the rotation in the positive and negative directions, the rigid coupling 2 is equivalent to the protection of preventing the deviation of the lower end of the central shaft 9, the fixing block 4 can lead the mounting block 3 to be closely connected with the rigid coupling 2, the bending angle of the movable groove 13 in the mounting block 3 is 90 degrees, the connecting rod 7 can only move in a limited range, and further can limit the central shaft 9, the annular sealing gasket A12 and the annular sealing gasket B15 made of silicon rubber materials are respectively positioned at two sides of the periphery of the opening and closing piece 11, the sealing performance of the opening and closing piece 11 can be enhanced from two directions simultaneously, double sealing protection is provided for the opening and closing piece 11, meanwhile, the diameters of the inner rings of the annular sealing gasket A12 and the annular sealing gasket B15 are slightly larger than the diameter of the outer ring of the opening and closing piece 11, so that the rotation of the opening and closing piece 11 is not influenced by the annular sealing gasket A12 and the annular sealing gasket B15, the carbon fiber quartz heating pipe 14 (made by Wenxi carbon fiber Co., Ltd., model YH-01) has the characteristics of long service life, high electrothermal conversion efficiency and the like, the carbon fiber quartz heating pipe 14 is fast in temperature rise, uniform in heating, small in thermal inertia and high in insulation strength, can carry out bidirectional heating at the periphery of the opening and closing piece 11 and a medium flowing through the, outwards can heat the protection to valve casing 1, avoid valve casing 1 to be frostbitten, and then the normal operating of this novel valve of powerful assurance.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a disk seat back valve that opening and close piece sealing performance is good, includes valve housing (1), annular seal gasket A (12) and annular seal gasket B (15), its characterized in that: the top of the valve shell (1) is connected with a rigid coupling (2) through oxygen welding, the upper end of the rigid coupling (2) is provided with a mounting block (3), the top and the bottom of the mounting block (3) are respectively provided with a bearing A (5) and a bearing B (6), one end of the mounting block (3) is provided with a connecting rod (7), a central shaft (9) is arranged inside the mounting block (3), the valve comprises a valve shell (1), a starting and closing piece (11) is arranged in the valve shell, an annular sealing gasket A (12) is arranged on one side of the periphery of the starting and closing piece (11), a movable groove (13) is arranged on one side inside the mounting block (3), a carbon fiber quartz heating pipe (14) is embedded inside the shell of the valve shell (1), and an annular sealing gasket B (15) is arranged on the other side of the periphery of the opening and closing piece (11).

2. A valve seat-back valve with a good sealing performance of an opening-closing member according to claim 1, wherein: and a fixed block (4) is arranged between the rigid coupling (2) and the mounting block (3) through arc welding.

3. A valve seat-back valve with a good sealing performance of an opening-closing member according to claim 1, wherein: one end of the central shaft (9) is connected with the bearing A (5), and the other end of the central shaft (9) penetrates through the bearing B (6), the rigid coupler (2) and the valve shell (1) respectively and is connected with the top of the opening and closing piece (11) in a welding mode.

4. A valve seat-back valve with a good sealing performance of an opening-closing member according to claim 1, wherein: the rubber anti-skidding sleeve (8) is sleeved on the periphery of one end of the connecting rod (7), and the other end of the connecting rod (7) is located inside the movable groove (13) and is connected with the central shaft (9) in a welding mode.

5. A valve seat-back valve with a good sealing performance of an opening-closing member according to claim 1, wherein: the valve is characterized in that a mounting groove is formed in the valve shell (1), and the carbon fiber quartz heating pipe (14) is located in the mounting groove.