CN213206615U

CN213206615U - Flange formula rising stem gate valve of easily dismantling

Info

Publication number: CN213206615U
Application number: CN202022079825.0U
Authority: CN
Inventors: 魏艾
Original assignee: Zhejiang Qianyuan Valve Technology Co ltd
Current assignee: Zhejiang Qianyuan Valve Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-14
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to an rising-stem flange gate valve technical field specifically is an easy flange formula rising-stem gate valve of dismantling, including first gate valve main part, the front end welding of first gate valve main part has first flange ring, the rear end welding of first gate valve main part has the valve pocket closing plate, the window is installed to the front surface upper end of valve pocket closing plate, the rear surface mounting of first gate valve main part has second gate valve main part, the front end welding of second gate valve main part has the valve pocket, the rear end welding of second gate valve main part has second flange ring, the last surface mounting of second gate valve main part has the lubricating-oil tank, the internally threaded rod is installed in the internal rotation of lubricating-oil tank, the external screw thread pole is installed in the lower extreme rotation of internal threaded rod. The utility model discloses flange formula rising stem gate valve, simple structure, and the valve body is but split structure, and the valve body can be isolated simultaneously with the valve plate to the valve rod, and the upper end of valve rod is provided with lubricating-oil tank.

Description

Flange formula rising stem gate valve of easily dismantling

Technical Field

The utility model relates to an rising stem flange gate valve technical field specifically is an easily dismantled flange formula rising stem gate valve.

Background

The rising stem flange gate valve is a flashboard which is an opening and closing part, the movement direction of the flashboard is vertical to the fluid direction, the gate valve can only be fully opened and fully closed and can not be adjusted and throttled, the gate valve is sealed by the contact of a valve seat and the flashboard, usually, a sealing surface can be subjected to surfacing welding of metal materials to increase the wear resistance, such as surfacing welding of 1Cr13, STL6, stainless steel and the like, the flashboard is provided with a rigid flashboard and an elastic flashboard, and the gate valve is divided into the rigid gate valve and the elastic gate valve according to the difference.

Chinese patent discloses a flange formula rising stem gate valve, (No. CN207796249U is announced to the grant), this patent technique drive mode is air pressure drive, for traditional manually operation, and is easy and simple to handle, it is laborsaving convenient, can control the switching of large-scale rising stem gate valve fast, but, the flange formula rising stem gate valve on the existing market, general structure is comparatively complicated, the structure of valve body generally is overall structure, the dismantlement of valve plate is inconvenient, be unfavorable for the maintenance to the inside of gate valve, most devices can not be through the inside behavior of outside viewing device, be unfavorable for the maintenance to the working process gate valve, valve rod and valve body switching department on most markets must add lubricating oil from time to time and maintain, and the valve rod exposes in the air mostly, the corrosion condition appears easily in the valve rod, influence valve rod pivoted stream compliance. Accordingly, those skilled in the art have provided an easy-to-disassemble flanged rising stem gate valve to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an easy flange formula rising stem gate valve of dismantling to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an easy flange formula rising stem gate valve of dismantling, includes first gate valve main part, the front end welding of first gate valve main part has first flange ring, the rear end welding of first gate valve main part has the valve pocket closing plate, the window is installed to the front surface upper end of valve pocket closing plate, the rear surface mounting of first gate valve main part has second gate valve main part, the front end welding of second gate valve main part has the valve pocket, the rear end welding of second gate valve main part has second flange ring, the last surface mounting of second gate valve main part has lubricating-oil tank, internally threaded rod is installed in the internal rotation of lubricating-oil tank, externally threaded rod's lower extreme rotates installs the external screw thread pole, the valve plate is installed in the lower extreme rotation of externally threaded rod, the upper end welding of internally threaded rod has the carousel, the inside of valve pocket is provided with the spacing strip of valve plate.

As a further aspect of the present invention: the bayonet socket has been seted up to the upper surface of valve pocket, the welding of the upper end rear surface of valve pocket closing plate has the cardboard, the welding of the surface of valve pocket has first nail position, the welding of the surface of valve pocket closing plate has the second nail position of going up.

As a further aspect of the present invention: the lubricating oil tank is characterized in that a second mounting block is welded on the upper surface of the interior of the lubricating oil tank, a first mounting block is welded on the lower surface of the interior of the lubricating oil tank, a second rotating shaft is installed at the joint of the first mounting block and the internal threaded rod, a first rotating shaft is installed at the joint of the second mounting block and the internal threaded rod, a third rotating shaft is installed at the joint of the valve plate and the external threaded rod, and an oil filling port is installed on the outer surface of one side of the lubricating oil tank.

As a further aspect of the present invention: the internal surface of the internal thread rod is provided with an internal thread, the external thread rod is provided with an external thread on the external surface, and the internal thread arranged inside the internal thread rod is matched with the external thread on the external surface of the external thread rod.

As a further aspect of the present invention: the thickness of the valve plate is matched with the width of the inner side of the valve plate limiting strip, the valve plate is slidably mounted at the position of the inner side of the valve plate limiting strip, and the through window is made of explosion-proof glass.

As a further aspect of the present invention: the first upper nail position corresponds to the second upper nail position, and the valve cavity sealing plate penetrate through the second upper nail position and are fixedly connected with the first upper nail position through screws.

As a further aspect of the present invention: the internal thread rod is rotatably installed at the inner position of the lubricating oil tank through a second rotating shaft and a first rotating shaft, and the external thread rod is rotatably installed at the upper surface of the valve plate through a third rotating shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses flange formula rising stem gate valve, moreover, the steam generator is simple in structure, and the valve body is but split structure, be favorable to the maintenance to the inside valve plate of valve body, and valve rod and valve plate can separate out the valve body simultaneously, be favorable to the cleanness inside the valve body, increase the convenience of installation maintenance, the upper end of valve rod is provided with the lubricating-oil tank, expose the valve rod in the air through the lubricating-oil tank parcel, avoided artifical periodic addition lubricating oil to maintain the problem, avoid the valve rod to appear the problem that the corrosion influences valve rod pivoted flow compliance.

Drawings

FIG. 1 is a schematic structural view of a flange-type rising stem gate valve which is easy to disassemble;

FIG. 2 is a schematic structural view of a second gate valve body in an easily detachable flange-type rising stem gate valve;

FIG. 3 is a schematic structural diagram of a first gate valve body in an easily detachable flange-type rising stem gate valve;

fig. 4 is a perspective view showing the connection of a lubricating oil tank and a valve plate in an easily detachable flange type rising stem gate valve.

In the figure: 1. a first gate valve body; 2. a second gate valve body; 3. a valve cavity; 4. a valve cavity sealing plate; 5. a first flange ring; 6. a second flange ring; 7. a lubricating oil tank; 8. a valve plate; 9. a turntable; 10. a window is penetrated; 11. a valve plate limit strip; 12. a bayonet; 13. a first nail-mounting position; 14. clamping a plate; 15. a second nail-mounting position; 16. an inner threaded rod; 17. an externally threaded rod; 18. a first mounting block; 19. a second mounting block; 20. a first rotating shaft; 21. a second rotating shaft; 22. an oil filler; 23. and a third rotating shaft.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, an easy-to-detach flange-type rising stem gate valve includes a first gate valve body 1, a first flange ring 5 is welded to a front end of the first gate valve body 1, a valve cavity sealing plate 4 is welded to a rear end of the first gate valve body 1, a through window 10 is installed on a front surface upper end of the valve cavity sealing plate 4, a second gate valve body 2 is installed on a rear surface of the first gate valve body 1, a valve cavity 3 is welded to a front end of the second gate valve body 2, a second flange ring 6 is welded to a rear end of the second gate valve body 2, a lubricating oil tank 7 is installed on an upper surface of the second gate valve body 2, an internal threaded rod 16 is installed inside the lubricating oil tank 7 in a rotating manner, an external threaded rod 17 is installed on a lower end of the internal threaded rod 16 in a rotating manner, a valve plate 8 is installed on a lower end of the external threaded rod 17 in a, the inner surface of the inner threaded rod 16 is provided with inner threads, the outer surface of the outer threaded rod 17 is provided with outer threads, the inner threads arranged inside the inner threaded rod 16 are matched with the outer threads on the outer surface of the outer threaded rod 17, the thickness of the valve plate 8 is matched with the inner width of the valve plate limiting strip 11, the valve plate 8 is slidably mounted at the inner side position of the valve plate limiting strip 11, the through window 10 is made of explosion-proof glass, firstly, the device is taken out and moved to a use position, lubricating oil is added into the lubricating oil tank 7, the device is connected with a liquid supply pipeline through the first flange ring 5 and the second flange ring 6 at the corresponding ends of the first gate valve body 1 and the second gate valve body 2, then, the use is started, the inner threaded rod 16 is rotated through the turntable 9 in the use process, the inner threaded rod 16 rotates inside the lubricating oil tank 7, the outer threaded rod 17 rotates into the inner threaded rod 16, and therefore the valve plate 8 is pulled to, the valve plate 8 opens the partition of the first gate valve main body 1 and the second gate valve main body 2, liquid starts to flow, after the use is completed, the rotary table 9 is rotated, the valve plate 8 moves downwards to close the partition of the first gate valve main body 1 and the second gate valve main body 2, the liquid flow is interrupted, when the maintenance is needed, the connection with a pipeline is detached through the first flange ring 5 and the second flange ring 6, the valve cavity 3 and the valve cavity sealing plate 4 are separated, the lubricating oil tank 7 is connected with the upper surface of the valve cavity 3, the device is maintained, and the device is assembled after the maintenance.

In fig. 2, 3: the bayonet 12 has been seted up to the upper surface of valve pocket 3, the welding of the upper end rear surface of valve pocket closing plate 4 has cardboard 14, the welding of the surface of valve pocket 3 has first nail position 13 of going up, the welding of the surface of valve pocket closing plate 4 has second nail position 15 of going up, first nail position 13 of going up corresponds with the position of second nail position 15, valve pocket 3 runs through second nail position 15 and first nail position 13 fixed connection with valve pocket closing plate 4 through the screw, when needing the maintenance, demolish being connected with the pipeline through first flange ring 5 and second flange ring 6, demolish the screw of nail position 15 and the junction of female screw rod 16 on the second, the block of separation cardboard 14 and bayonet 12 internal thread pole 16, the connection of separation lubricating-oil tank 7 and valve pocket 3 upper surface, maintain the device, it can to maintain the equipment after the maintenance.

In fig. 4: a second mounting block 19 is welded on the upper surface inside the lubricating oil tank 7, a first mounting block 18 is welded on the lower surface inside the lubricating oil tank 7, a second rotating shaft 21 is installed at the joint of the first mounting block 18 and the inner threaded rod 16, a first rotating shaft 20 is installed at the joint of the second mounting block 19 and the inner threaded rod 16, a third rotating shaft 23 is installed at the joint of the valve plate 8 and the outer threaded rod 17, an oil filling opening 22 is installed on the outer surface of one side of the lubricating oil tank 7, the inner threaded rod 16 is rotatably installed at the inner position of the lubricating oil tank 7 through the second rotating shaft 21 and the first rotating shaft 20, the outer threaded rod 17 is rotatably installed at the upper surface position of the valve plate 8 through the third rotating shaft 23, the inner threaded rod 16 is rotated through the rotating disc 9 during use, the upper end of the inner threaded rod 16 rotates inside the lubricating oil tank 7 through the first rotating shaft 20 and the second rotating shaft 21, the first rotating shaft 20 and the second rotating shaft 21 are lubricated in real time, the external screw thread rod 17 rotates on the upper surface of the valve plate 8 through the third rotating shaft 23, the external screw thread rod 17 rotates into the internal screw thread rod 16, so that the valve plate 8 is pulled to slide on the inner side of the valve plate limiting strip 11 in the valve cavity 3, the valve plate 8 opens the partition of the first gate valve main body 1 and the second gate valve main body 2, liquid starts to flow, after the use is completed, the rotating disc 9 is rotated, the valve plate 8 moves downwards to close the partition of the first gate valve main body 1 and the second gate valve main body 2, and the liquid flow is interrupted.

The utility model discloses a theory of operation is: firstly, the device is taken out, the device is moved to a use position, lubricating oil is added into the lubricating oil tank 7 through the oil filling port 22, the device is connected with a liquid supply pipeline through the first flange ring 5 and the second flange ring 6 at the corresponding ends of the first gate valve main body 1 and the second gate valve main body 2, then, the device is used, the inner threaded rod 16 is rotated through the rotary disc 9 in the use process, the upper end of the inner threaded rod 16 rotates inside the lubricating oil tank 7 through the first rotating shaft 20 and the second rotating shaft 21, the first rotating shaft 20 and the second rotating shaft 21 perform real-time lubrication through the lubricating oil inside the lubricating oil tank 7, the outer threaded rod 17 rotates on the upper surface of the valve plate 8 through the third rotating shaft 23, the outer threaded rod 17 rotates into the inner threaded rod 16, so as to pull the valve plate 8 to slide inside the valve plate limiting strip 11 inside the valve cavity 3, the valve plate 8 opens the partition of the first gate valve main body 1 and the second gate, liquid begins to flow, after the use is finished, the rotary table 9 is rotated, the valve plate 8 moves downwards to close the partition between the first gate valve main body 1 and the second gate valve main body 2, the liquid flow is interrupted, when maintenance is needed, the first flange ring 5 and the second flange ring 6 are used for detaching the connection with a pipeline, the screw at the joint of the second upper screw position 15 and the internal screw rod 16 is detached, the clamping of the separation clamping plate 14 and the bayonet 12 on the internal screw rod 16 is used for separating the connection between the lubricating oil tank 7 and the upper surface of the valve cavity 3, the device is maintained, and the device is assembled after maintenance.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The flange type rising stem gate valve easy to disassemble comprises a first gate valve main body (1) and is characterized in that a first flange ring (5) is welded at the front end of the first gate valve main body (1), a valve cavity sealing plate (4) is welded at the rear end of the first gate valve main body (1), a transparent window (10) is installed at the upper end of the front surface of the valve cavity sealing plate (4), a second gate valve main body (2) is installed on the rear surface of the first gate valve main body (1), a valve cavity (3) is welded at the front end of the second gate valve main body (2), a second flange ring (6) is welded at the rear end of the second gate valve main body (2), a lubricating oil tank (7) is installed on the upper surface of the second gate valve main body (2), an internal threaded rod (16) is installed inside the lubricating oil tank (7) in a rotating mode, and an external threaded rod (17) is installed at the lower end of the internal, the lower extreme of external screw thread pole (17) rotates installs valve plate (8), the upper end welding of internal screw thread pole (16) has carousel (9), the inside of valve pocket (3) is provided with spacing (11) of valve plate.

2. The easy-to-disassemble flange type rising stem gate valve according to claim 1, wherein the upper surface of the valve cavity (3) is provided with a bayonet (12), the rear surface of the upper end of the valve cavity sealing plate (4) is welded with a clamping plate (14), the outer surface of the valve cavity (3) is welded with a first upper nail position (13), and the outer surface of the valve cavity sealing plate (4) is welded with a second upper nail position (15).

3. The easy-to-detach flanged rising stem gate valve according to claim 1, characterized in that a second mounting block (19) is welded on the upper surface of the inside of the lubricating oil tank (7), a first mounting block (18) is welded on the lower surface of the inside of the lubricating oil tank (7), a second rotating shaft (21) is installed at the joint of the first mounting block (18) and the internal threaded rod (16), a first rotating shaft (20) is installed at the joint of the second mounting block (19) and the internal threaded rod (16), a third rotating shaft (23) is installed at the joint of the valve plate (8) and the external threaded rod (17), and an oil filling opening (22) is installed on the outer surface of one side of the lubricating oil tank (7).

4. An easily detachable flange-type rising stem gate valve according to claim 1, characterized in that the inner surface of the inner threaded rod (16) is provided with an internal thread, the outer surface of the outer threaded rod (17) is provided with an external thread, and the internal thread arranged inside the inner threaded rod (16) is matched with the external thread on the outer surface of the outer threaded rod (17).

5. The easy-to-detach flange-type rising-stem gate valve according to claim 1, wherein the thickness of the valve plate (8) is matched with the inner width of the valve plate limiting strip (11), the valve plate (8) is slidably mounted at the inner position of the valve plate limiting strip (11), and the through window (10) is made of explosion-proof glass.

6. The flanged rising stem gate valve easy to disassemble according to claim 2, wherein the first upper nail position (13) corresponds to the second upper nail position (15), and the valve cavity (3) and the valve cavity sealing plate (4) are fixedly connected with the first upper nail position (13) through the second upper nail position (15) by screws.

7. An easy-to-disassemble flanged rising stem gate valve according to claim 3, wherein the internally threaded rod (16) is rotatably mounted at an inner position of the lubricating oil tank (7) by the second rotating shaft (21) and the first rotating shaft (20), and the externally threaded rod (17) is rotatably mounted at an upper surface position of the valve plate (8) by the third rotating shaft (23).