CN213206616U

CN213206616U - Gate valve sealing protection device

Info

Publication number: CN213206616U
Application number: CN202022118042.9U
Authority: CN
Inventors: 钱姜斌; 申志刚
Original assignee: Jiangsu Aochen Machinery Co ltd
Current assignee: Jiangsu Aochen Machinery Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-05-14
Anticipated expiration: 2030-09-24

Abstract

The utility model provides a gate valve seals protection device, including public card shell, female card shell, valve rod cover, sealed bearing, steel hoop, pipe box one, pipe box two and tighten up the bolt, female card shell front side is provided with public card shell, female card shell upside is fixed with the valve rod cover, the inside upside of valve rod cover is fixed with sealed bearing, the female card shell left and right sides is equipped with pipe box one, the public card shell left and right sides is provided with pipe box two, common cover is equipped with the steel hoop on pipe box one and the pipe box two, the steel hoop rear side is provided with tightens up the bolt, this design has solved the problem that original gate valve lacks effectual sealed protection device, the utility model discloses rational in infrastructure, effective isolation protection gate valve body slows down the sealing member and ages, prevents the valve rod corrosion.

Description

Gate valve sealing protection device

Technical Field

The utility model relates to a gate valve seal protection device belongs to gate valve technical field.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. Gate valves are sealed by the contact of the valve seat and gate plate, and the sealing surface is usually welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate is divided into a rigid gate plate and an elastic gate plate according to the difference of the gate plate.

In the prior art, because the gate valve is exposed to the external environment for a long time for use, a sealing element of the gate valve is easily oxidized to reduce the sealing effect; in addition, the valve rod is often rotated and corroded by air and rainwater, so that the valve rod is easily corroded to cause inflexible rotation and reduce the service cycle, and a gate valve sealing protection device is urgently needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a gate valve seals protection device to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, effectively keep apart protection gate valve body, slow down the sealing member ageing, prevent the valve rod corrosion.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a gate valve seals protection device, includes public card shell, female card shell, valve rod cover, sealed bearing, steel hoop, pipe box one, pipe box two and tightens up the bolt, female card shell front side is provided with public card shell, female card shell upside is fixed with the valve rod cover, the inside upside of valve rod cover is fixed with sealed bearing, female card shell left and right sides is equipped with pipe box one, the public card shell left and right sides is provided with pipe box two, the common cover is equipped with the steel hoop on pipe box one and the pipe box two, the steel hoop rear side is provided with tightens up the bolt.

Further, the utility model discloses a sealed bearing inner wall is pasted and is had waterproof packing ring one, and waterproof packing ring material is silicon rubber.

Further, the utility model discloses a valve rod cover upper end is equipped with the bearing frame, sealed bearing fixes in the bearing frame.

Further, the utility model discloses a valve rod expansion gap has been seted up to female joint housing up end intermediate position, and valve rod expansion gap and sealed bearing are on same vertical line.

Further, the utility model discloses a pipe box two is equipped with oblique chamfer with pipe box one concatenation department, pipe box one and two inner walls of pipe box are all pasted and are pasted and have waterproof gasket two, and the length of waterproof gasket two is greater than the inner wall girth of pipe box one and pipe box two, and two materials of waterproof gasket are silicon rubber.

Further, the utility model discloses a public card shell rear end face is equipped with the buckle, the terminal surface is equipped with the draw-in groove before the female card shell, and buckle and draw-in groove phase-match.

Further, the utility model discloses a tighten up the bolt and go up the cover and be equipped with the nut, tighten up the bolt and run through steel hoop both ends and nut threaded connection.

Has the advantages that: the utility model discloses a gate valve seals protection device has following effect:

1. the upper side in the valve rod cover of the utility model is fixed with the sealing bearing, the inner wall of the sealing bearing is pasted with the waterproof gasket I, the upper side and the lower side of the valve rod are isolated and protected, and the sealing bearing ensures the flexible rotation of the valve rod;

2. the utility model has the advantages that the joint of the pipe sleeve II and the pipe sleeve I is provided with the oblique chamfer, when the steel hoop is stressed and shrunk, the pipe sleeve I and the pipe sleeve II generate relative displacement through the oblique chamfer, which is beneficial to tightly holding an external pipeline;

3. the first pipe sleeve and the second pipe sleeve of the utility model are sleeved with the steel hoop together, the tightening bolt is sleeved with the nut, the tightening bolt penetrates through two ends of the steel hoop and is in threaded connection with the nut, and the tightening bolt drives the steel hoop to contract and loosen by screwing or unscrewing the nut;

4. the utility model discloses a public card shell rear end face is equipped with the buckle, and public card shell passes through the buckle to be connected with female card shell block, the dismouting between public card shell of being convenient for and the female card shell.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a gate valve seal protection device of the present invention;

fig. 2 is a right side view of the gate valve seal protection device of the present invention;

fig. 3 is a right sectional view of the gate valve seal protection device of the present invention;

in the figure: 1-male clamping shell, 2-female clamping shell, 3-valve rod cover, 4-sealing bearing, 5-waterproof gasket I, 6-bearing seat, 7-steel hoop, 8-pipe sleeve I, 9-pipe sleeve II, 10-tightening bolt, 11-waterproof gasket II, 12-buckle and 13-valve rod moving opening.

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.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a gate valve seals protection device, including public calorie of shell 1, female calorie of shell 2, valve rod cover 3, sealed bearing 4, steel hoop 7, pipe box 8, pipe box two 9 and tighten up bolt 10, female calorie of 2 front sides of shell is provided with public calorie of

shell

1, 2 upsides of female calorie of shell are fixed with valve rod cover 3, the inside upside of valve rod cover 3 is fixed with sealed bearing 4, 2 left and right sides of female calorie of shell are equipped with

pipe box

8, 1 left and right sides of public calorie of shell is provided with pipe box two 9, the common cover is equipped with steel hoop 7 on pipe box 8 and the pipe box two 9, 7 rear sides of steel hoop are provided with tightens up bolt 10, the problem that original gate valve lacks effectual sealed protection device has been solved in this design.

The utility model discloses a 4 inner walls of seal bearing paste have waterproof packing ring one 5, and 5 materials of waterproof packing ring are silicon rubber, to the upper and lower both sides isolation protection of valve rod, guarantee the nimble rotation of valve rod, and 3 upper ends of valve rod cover are equipped with bearing frame 6, and seal bearing 4 fixes in bearing frame 6, plays the effect of fixed protection to seal bearing 4.

The utility model discloses a valve rod expansion gap 13 has been seted up to 2 up end intermediate positions of female joint shell, and valve rod expansion gap 13 and sealed bearing 4 on same vertical line, guarantee the sufficient laying space of valve rod.

The utility model has the advantages that the joint of the pipe sleeve II 9 and the pipe sleeve I8 is provided with the oblique chamfer, when the steel hoop 7 is stressed to shrink, the pipe sleeve I8 and the pipe sleeve II 9 generate relative displacement through the oblique chamfer, which is beneficial to tightly holding an external pipeline; and the inner walls of the pipe sleeve I8 and the pipe sleeve II 9 are both adhered with a waterproof gasket II 11, the length of the waterproof gasket II 11 is greater than the circumference of the inner walls of the pipe sleeve I8 and the pipe sleeve II 9, and the waterproof gasket II 11 is made of silicon rubber and has a good sealing effect.

The utility model discloses a 1 rear end face of public card shell is equipped with buckle 12, and the terminal surface is equipped with the draw-in groove before the female card shell 2, and buckle 12 and draw-in groove phase-match, and the dismouting between the public card shell 1 of being convenient for and the female card shell 2 is tightened up the cover and is equipped with the nut on the bolt 10, tightens up bolt 10 and runs through 7 both ends of steel hoop and nut threaded connection, through screwing up or unscrewing the nut, makes to tighten up bolt 10 and drive steel hoop 7 and contract and relax.

As an embodiment of the present invention: firstly, coating a layer of lubricating oil on the surface of a valve rod of the gate valve, so that the valve rod can conveniently penetrate through a sealing bearing 4, a waterproof gasket I5 in the sealing bearing 4 can isolate and protect the upper side and the lower side of the valve rod, and the sealing bearing 4 can ensure that the valve rod can flexibly rotate; then, after an external pipeline is connected with an inlet and an outlet of a gate valve, the male card shell 1 is tightly clamped with the female card shell 2 through a buckle 12; and then the steel hoop 7 surrounds the pipe sleeve I8 and the pipe sleeve II 9, the tightening bolts 10 penetrate through two ends of the steel hoop 7 and are tightened by nuts, relative displacement occurs between the pipe sleeve I8 and the pipe sleeve II 9 through the inclined chamfers, so that the pipe sleeve I8 and the pipe sleeve II 9 are favorable for tightly holding an external pipeline, and the waterproof gaskets II 11 in the pipe sleeve I8 and the pipe sleeve II 9 have a good sealing effect.

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 evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a gate valve seals protection device which characterized in that: including public card shell (1), female card shell (2), valve rod cover (3), sealed bearing (4), steel hoop (7), pipe box (8), pipe box two (9) and tighten up bolt (10), female card shell (2) front side is provided with public card shell (1), female card shell (2) upside is fixed with valve rod cover (3), the inside upside of valve rod cover (3) is fixed with sealed bearing (4), female card shell (2) left and right sides is equipped with pipe box (8), public card shell (1) left and right sides is provided with pipe box two (9), the common cover is equipped with steel hoop (7) on pipe box (8) and pipe box two (9), steel hoop (7) rear side is provided with tightens up bolt (10).

2. The gate valve seal protector of claim 1, wherein: the inner wall of the sealing bearing (4) is pasted with a first waterproof gasket (5), and the first waterproof gasket (5) is made of silicon rubber.

3. The gate valve seal protector of claim 1, wherein: the upper end of the valve rod cover (3) is provided with a bearing seat (6), and the sealing bearing (4) is fixed in the bearing seat (6).

4. The gate valve seal protector of claim 1, wherein: a valve rod movable opening (13) is formed in the middle of the upper end face of the female clamping shell (2), and the valve rod movable opening (13) and the sealing bearing (4) are on the same vertical line.

5. The gate valve seal protector of claim 1, wherein: an oblique chamfer is arranged at the splicing position of the pipe sleeve I (8) and the pipe sleeve II (9), waterproof gaskets II (11) are adhered to the inner walls of the pipe sleeve I (8) and the pipe sleeve II (9), the length of each waterproof gasket II (11) is larger than the perimeter of the inner walls of the pipe sleeve I (8) and the pipe sleeve II (9), and the waterproof gaskets II (11) are made of silicon rubber.

6. The gate valve seal protector of claim 1, wherein: the male card shell (1) is provided with a buckle (12) on the rear end face, the female card shell (2) is provided with a clamping groove on the front end face, and the buckle (12) is matched with the clamping groove.

7. The gate valve seal protector of claim 1, wherein: the tightening bolt (10) is sleeved with a nut, and the tightening bolt (10) penetrates through two ends of the steel hoop (7) and is in threaded connection with the nut.