CN213512175U

CN213512175U - Hard sealing gate valve with stainless steel rising stem

Info

Publication number: CN213512175U
Application number: CN202022583513.3U
Authority: CN
Inventors: 吴添元
Original assignee: Fujian Lidun Industry Co ltd
Current assignee: Fujian Lidun Industry Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-22
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a hard sealing gate valve of stainless steel rising stem, including valve gap, water pipeline and solid fixed ring, two bottoms are provided with first fixed block about the valve gap, and valve gap top surface center embedding has the bearing, valve gap top surface center runs through threaded rod, and installs the baffle on the threaded rod, the threaded rod bottom is connected with the flashboard, the valve gap bottom surface is pasted and is sealed the pad, and sealed pad bottom surface is connected with the floodgate body, the second fixed block has been seted up at both ends about the top in the middle of the floodgate body, and the top is provided with the fluting in the middle of the floodgate body, the floodgate seat is installed to the flashboard both sides, and the inside water pipeline of having seted up of floodgate body, install solid fixed. This stainless steel rising stem seals gate valve firmly is provided with solid fixed ring, and the buckle presss from both sides first fixed block and second fixed block with lower buckle on the accessible to fix it by bolt and nut screwed connection again, solve current gate valve and dismantle the inconvenient when maintaining the valve gap.

Description

Hard sealing gate valve with stainless steel rising stem

Technical Field

The utility model relates to a gate valve technical field specifically is a hard sealing gate valve of stainless steel rising stem.

Background

Along with the promotion of modern city quality development, the pipeline in city and the industry increases gradually, like natural gas, petroleum, chemical industry, the environmental protection, the urban pipeline, pipeline such as gas pipeline, because pipeline distribution is densely covered and mixed and disorderly, the use of gate valve has become indispensable partly in the pipeline construction.

Present gate valve structure is complicated, and overall structure is unstable, and hard seal gate valve dismantles inconveniently, and the leakproofness is not good. We have therefore proposed a stainless steel rising stem hard seal gate valve to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hard sealing gate valve of stainless steel rising stem to solve the present gate valve structure that the above-mentioned background art provided complicated, overall structure is unstable, and hard sealing gate valve dismantles inconveniently, the not good problem of leakproofness.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hard sealing gate valve of stainless steel rising stem, includes valve gap, water pipeline and solid fixed ring, two bottoms are provided with first fixed block about the valve gap, and valve gap top surface center embedding has the bearing, be fixed with the base on the bearing, and run through the threaded rod on the base, be connected with the hand wheel on the base, and the bearing top surface center runs through the threaded rod, threaded rod runs through in valve gap top surface center, and installs the baffle on the threaded rod, the threaded rod bottom is connected with the flashboard, the valve gap bottom surface is pasted and is sealed the pad, and sealed pad bottom surface is connected with the floodgate body, the second fixed block has been seted up at both ends about the middle top of the floodgate body, and the top is provided with the fluting in the middle of the floodgate body, the floodgate seat is installed to the flashboard both sides, and the.

Preferably, the base center is the through-hole screw thread setting, and the base passes through the bearing and constitutes slewing mechanism with the valve gap to connected mode between threaded rod and the base is threaded connection, formula structure as an organic whole between hand wheel and the base, and the threaded rod passes through the hand wheel and constitutes spiral elevating system in the inside of valve gap.

Preferably, the flashboard and the gate seat are cast by carbon steel, the flashboard and the gate seat are connected in a fitting manner, and the distance from the bottom surface of the baffle to the flashboard is the same as the distance from the baffle to the gate seat.

Preferably, the area size of the top surface of the sealing gasket is the same as that of the bottom surface of the valve cover, and the sealing gasket is connected with the valve cover and the brake body in a fitting mode.

Preferably, the fixing ring comprises an upper retaining ring, a lower retaining ring, a torsion spring, a bolt and a nut, the torsion spring is installed at the bottom end of the left side of the upper retaining ring, the lower retaining ring is arranged below the torsion spring, the bolt penetrates through the right ends of the upper retaining ring and the lower retaining ring, and the nut is installed at the bottom end of the bolt.

Preferably, the upper retaining ring forms a torsion structure on the lower retaining ring through a torsion spring, the first fixing block and the second fixing block are fixed through screw connection of bolts and nuts on the fixing ring, and the fixing ring, the first fixing block and the second fixing block are arranged in a left-right symmetrical mode by taking the central axis of the valve cover as a reference.

Compared with the prior art, the beneficial effects of the utility model are that: this hard sealing gate valve of stainless steel rising stem:

(1) the fixing ring is arranged, the first fixing block and the second fixing block can be clamped through the upper retaining ring and the lower retaining ring and then fixed through the screw connection of the bolt and the nut, and the problem that the valve cover is inconvenient to disassemble and maintain in the conventional gate valve is solved in the mode, and time and labor are saved;

(2) be provided with the baffle, the accessible baffle carries on spacingly to realize being the laminating state between flashboard and the floodgate seat, prevent that the gate valve from taking place the problem of leaking, safety and practicality more.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic side view of the present invention;

fig. 4 is a schematic view of the fixing ring structure of the present invention;

fig. 5 is a schematic view of a partial structure of the present invention.

In the figure: 1. a valve cover; 2. a first fixed block; 3. a bearing; 4. a base; 5. a hand wheel; 6. a threaded rod; 7. a baffle plate; 8. a shutter plate; 9. a gasket; 10. a gate body; 11. a second fixed block; 12. grooving; 13. a brake seat; 14. a water pipeline; 15. a fixing ring; 1501. an upper retaining ring; 1502. a lower retaining ring; 1503. a torsion spring; 1504. a bolt; 1505. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a stainless steel rising stem hard sealing gate valve comprises a valve cover 1, a first fixing block 2, a bearing 3, a base 4, a hand wheel 5, a threaded rod 6, a baffle 7, a flashboard 8, a sealing gasket 9, a gate body 10, a second fixing block 11, a slot 12, a gate seat 13, a water pipeline 14 and a fixing ring 15, wherein the first fixing block 2 is arranged at the left bottom end and the right bottom end of the valve cover 1, the bearing 3 is embedded in the center of the top surface of the valve cover 1, the base 4 is fixed on the bearing 3, the threaded rod 6 penetrates through the base 4, the hand wheel 5 is connected on the base 4, the threaded rod 6 penetrates through the center of the top surface of the bearing 3, the threaded rod 6 penetrates through the center of the top surface of the valve cover 1, the baffle 7 is arranged on the threaded rod 6, the bottom end of the threaded rod 6 is connected with the flashboard 8, the sealing gasket 9 is adhered to the bottom, and the middle top of the brake body 10 is provided with a slot 12, the two sides of the flashboard 8 are provided with brake seats 13, the interior of the brake body 10 is provided with a water pipeline 14, and the top surfaces of the first fixing blocks 2 and the bottom surfaces of the second fixing blocks 11 are provided with fixing rings 15.

The center of the base 4 is provided with a through hole and a thread, the base 4 forms a rotating mechanism with the valve cover 1 through the bearing 3, the connecting mode between the threaded rod 6 and the base 4 is a spiral connection, the hand wheel 5 and the base 4 form an integrated structure, the threaded rod 6 forms a spiral lifting mechanism in the valve cover 1 through the hand wheel 5, and the abrasion of the device is reduced more in a labor-saving manner and the switch of the gate valve is realized through the lifting mechanism.

Flashboard 8 and floodgate seat 13 are formed by the carbon steel casting, and the connected mode between flashboard 8 and the floodgate seat 13 is for laminating the connection to the interval between baffle 7 bottom surface to flashboard 8 is the same with the interval between baffle 7 to floodgate seat 13, and density is littleer, and is more firm to sealed.

The top surface area size of sealed 9 of filling up is the same with the bottom surface area size of valve gap 1, and the connected mode between sealed 9 and valve gap 1 and the floodgate body 10 is for laminating the connection, increases sealed 9 of filling up, prevents to leak the infiltration from the junction.

The fixing ring 15 comprises an upper retaining ring 1501, a lower retaining ring 1502, a torsion spring 1503, a bolt 1504 and a nut 1505, the torsion spring 1503 is installed at the bottom end of the left side of the upper retaining ring 1501, the lower retaining ring 1502 is arranged below the torsion spring 1503, the bolt 1504 penetrates through the right ends of the upper retaining ring 1501 and the lower retaining ring 1502, the nut 1505 is installed at the bottom end of the bolt 1504, and the problem that the existing device is complex to assemble and disassemble is solved by adding the fixing ring 15.

The upper retaining ring 1501 forms a torsion structure on the lower retaining ring 1502 through the torsion spring 1503, the first fixing block 2 and the second fixing block 11 are fixed through the bolt 1504 and the nut 1505 on the fixing ring 15 in a spiral connection mode, and the fixing ring 15, the first fixing block 2 and the second fixing block 11 are arranged in a bilateral symmetry mode by taking the central axis of the valve cover 1 as a reference, so that the practicability of the device is improved, and time and labor are saved.

The working principle is as follows: when the stainless steel rising stem hard seal gate valve is used, firstly, the bearing 3 is fixed at the center of the top surface of the valve cover 1, the base 4 is installed on the base 4 by taking the central axis of the bearing 3 as a reference, the base 4 and the hand wheel 5 are of an integrated structure, then the baffle 7 is installed on the threaded rod 6, the bottom end of the threaded rod 6 is fixedly provided with the flashboard 8, then the threaded rod 6 is spirally penetrated through the bearing 3 and the base 4, then the sealing gasket 9 is pasted on the bottom surface of the valve cover 1, the valve cover 1 is installed on the flashboard 10, finally the first fixing block 2 and the second fixing block 11 are clamped by using the fixing ring 15, and are fixed by using the bolt 1504 and the nut 1505, which is the whole installation.

When the gate valve is opened and closed, flanges at two ends of a gate body 10 are fixedly connected with corresponding pipelines, then a hand wheel 5 is rotated to enable a base 4 to rotate on a bearing 3, a spiral lifting structure is formed by the base 4 and a threaded rod 6 in a through hole thread shape, so that the gate valve is opened and closed, a baffle 7 is further mounted on the threaded rod 6, the distance between the baffle 7 and a gate plate 8 is the same as that between the baffle 7 and a gate seat 13, the gate plate 8 can be effectively limited, only a bolt 1504 and a nut 1505 are required to be spirally separated when maintenance is carried out, the valve cover 1 can be separated by twisting an upper retaining ring 1501 and a lower retaining ring 1502, and the whole working process is completed. And those not described in detail in this specification are well within the skill of those 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 or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a hard sealing gate valve of stainless steel rising stem, includes valve gap (1), water service pipeline (14) and solid fixed ring (15), its characterized in that: the brake valve is characterized in that first fixing blocks (2) are arranged at the left bottom end and the right bottom end of the valve cover (1), a bearing (3) is embedded into the center of the top surface of the valve cover (1), a base (4) is fixed on the bearing (3), a threaded rod (6) penetrates through the base (4), a hand wheel (5) is connected onto the base (4), the threaded rod (6) penetrates through the center of the top surface of the bearing (3), the threaded rod (6) penetrates through the center of the top surface of the valve cover (1), a baffle (7) is installed on the threaded rod (6), a brake plate (8) is connected to the bottom end of the threaded rod (6), a sealing gasket (9) is pasted on the bottom surface of the valve cover (1), a brake body (10) is connected to the bottom surface of the sealing gasket (9), second fixing blocks (11) are arranged at the left end and the right end of the middle top of the brake body (10), and the inside water pipeline (14) of seting up of floodgate body (10), install solid fixed ring (15) on first fixed block (2) top surface and second fixed block (11) bottom surface.

2. The stainless steel rising stem hard seal gate valve of claim 1, wherein: the center of the base (4) is provided with a through hole and threads, the base (4) forms a rotating mechanism with the valve cover (1) through a bearing (3), the threaded rod (6) is connected with the base (4) in a screw manner, the hand wheel (5) and the base (4) form an integrated structure, and the threaded rod (6) forms a screw lifting mechanism in the valve cover (1) through the hand wheel (5).

3. The stainless steel rising stem hard seal gate valve of claim 1, wherein: flashboard (8) and floodgate seat (13) are formed by the carbon steel casting, and the connected mode between flashboard (8) and floodgate seat (13) is for laminating the connection to the interval between baffle (7) bottom surface to flashboard (8) is the same with the interval between baffle (7) to floodgate seat (13).

4. The stainless steel rising stem hard seal gate valve of claim 1, wherein: the area size of the top surface of the sealing gasket (9) is the same as that of the bottom surface of the valve cover (1), and the sealing gasket (9) is connected with the valve cover (1) and the brake body (10) in a fitting mode.

5. The stainless steel rising stem hard seal gate valve of claim 1, wherein: the fixing ring (15) comprises an upper retaining ring (1501), a lower retaining ring (1502), a torsion spring (1503), a bolt (1504) and a nut (1505), wherein the torsion spring (1503) is installed at the bottom end of the left side of the upper retaining ring (1501), the lower retaining ring (1502) is arranged below the torsion spring (1503), the bolt (1504) penetrates through the right ends of the upper retaining ring (1501) and the lower retaining ring (1502), and the nut (1505) is installed at the bottom end of the bolt (1504).

6. The stainless steel rising stem hard seal gate valve of claim 5, wherein: the upper retaining ring (1501) forms a torsion structure on the lower retaining ring (1502) through a torsion spring (1503), the first fixing block (2) and the second fixing block (11) are fixed through a bolt (1504) and a nut (1505) on the fixing ring (15) in a spiral connection mode, and the fixing ring (15), the first fixing block (2) and the second fixing block (11) are arranged in a left-right symmetrical mode by taking the central axis of the valve cover (1) as a reference.