CN212297835U

CN212297835U - Anti-leakage alloy sealing device

Info

Publication number: CN212297835U
Application number: CN202021074811.3U
Authority: CN
Inventors: 邱进; 刘景湘; 黄永健
Original assignee: Yuan Special Valve Development Shenzhen Co ltd
Current assignee: Yuan Special Valve Development Shenzhen Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-01-05
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a prevent alloy sealing device that leaks, including valve gap, valve body and valve rod, the valve gap is connected with the valve body top, the valve rod passes in the valve gap extends into the valve body, two sealing washers have been cup jointed between valve rod and the valve gap, the bin has been cup jointed in the valve rod outside, the top fixed connection of bin bottom and valve gap, bin bilateral symmetry is provided with the recess that holds the sealing washer, the logical groove that runs through the recess is seted up to the bin both sides, it is equipped with the push rod to lead to the inside cunning of groove. The utility model discloses in, advance the sealing washer of wearing and tearing through the thimble grafting, drive thimble and sealing washer through the gland and shift out the sealing connection department of valve gap and valve rod, the taking out of the sealing washer of being convenient for wear and tear, promote the push pedal through the push rod, and then promote the sealing washer and cup joint in the valve rod outside to under the effect of gland, sticis in the sealing connection department of valve gap and valve rod, realize the installation of sealing washer, simple structure, convenient operation avoids the dismantlement of arbitrary part on the valve.

Description

Anti-leakage alloy sealing device

Technical Field

The utility model relates to an alloy sealing device technical field especially relates to prevent leaking alloy sealing device.

Background

During valve production, because different valves are used in different occasions, i.e. different internal flowing media, the valve is produced from different raw materials, and for some corrosive media, an alloy with good corrosion resistance is generally used as a raw material for valve production.

The structure of the valves used at present is: the valve comprises a valve rod and a valve body provided with a water inlet and a water outlet, wherein a mounting port is arranged at the top of the valve body, a valve cover is arranged on the mounting port in a sealing manner, a central hole used for communicating the interior of the valve body and allowing the valve rod to pass is formed in the valve cover, the valve rod extends into the interior of the valve body from the central hole and is fixed with a valve core, the valve rod drives the valve core to cut or communicate the water inlet and the water outlet under the driving of a driving mechanism, and a sealing ring used for movably sealing a gap between the valve rod.

When the valve made of the corrosion-resistant alloy material is used, the sealing ring is sealed, meanwhile, the sealing ring is corroded by corrosive media frequently, the sealing ring is abraded, the sealing effect is influenced, the sealing ring needs to be replaced frequently, however, the replacement of the sealing ring generally needs to be disassembled to remove connection between the valve rod and the valve cover, and the sealing device is troublesome, and therefore the sealing device convenient for replacement of the sealing ring is lacked.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the above problems, an anti-leakage alloy sealing device is proposed.

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

prevent leaking alloy sealing device, including valve gap, valve body and valve rod, the valve gap is connected with the valve body top, the valve rod passes in the valve gap extends into the valve body, two sealing washers have been cup jointed between valve rod and the valve gap, the bin has been cup jointed in the valve rod outside, the top fixed connection of bin bottom and valve gap, bin bilateral symmetry is provided with the recess that holds the sealing washer, bin both sides are seted up the logical groove that runs through the recess, and the inside surface wall collineation in their bottoms, it is equipped with the push rod to lead to the inside cunning of groove, the extension end of push rod is connected with the push pedal.

As a further description of the above technical solution:

the sealing ring is an elastic rubber gasket with a notch, and the notches of the sealing ring face towards the valve rod.

As a further description of the above technical solution:

the push plate is a V-shaped plastic plate with an opening horizontally facing the valve rod.

As a further description of the above technical solution:

the outer side of the valve rod is rotatably connected with a gland, and the bottom of the gland is abutted against the top of the sealing ring.

As a further description of the above technical solution:

through holes are symmetrically formed in two sides of the gland, and ejector pins are arranged in the through holes.

As a further description of the above technical solution:

the outer surface wall of the gland is connected with the inner surface wall of the storage box in a screwing mode through threads, and the through hole and the ejector pin which are close to the top of the gland are connected in a screwing mode through threads.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, advance the sealing washer of wearing and tearing through the thimble grafting, drive thimble and sealing washer through the gland and shift out the sealing connection department of valve gap and valve rod, the taking out of the sealing washer of being convenient for wear and tear, promote the push pedal through the push rod, and then promote the sealing washer and cup joint in the valve rod outside to under the effect of gland, sticis in the sealing connection department of valve gap and valve rod, realize the installation of sealing washer, simple structure, convenient operation avoids the dismantlement of arbitrary part on the valve.

2. The utility model discloses in, through the sealing washer in the valve rod outside of cup jointing that two breach symmetries set up, the two complements each other to guarantee the sealed effect of breach department.

Drawings

Fig. 1 shows a schematic diagram of an internal structure provided according to an embodiment of the present invention;

fig. 2 shows a schematic cross-sectional view at a-a provided according to an embodiment of the present invention;

fig. 3 shows a schematic top view of a gland provided according to an embodiment of the present invention.

Illustration of the drawings:

1. a valve cover; 2. a valve body; 3. a push rod; 4. a storage tank; 401. a groove; 402. a through groove; 5. a gland; 501. a through hole; 6. a thimble; 7. pushing the plate; 8. a seal ring; 9. a valve stem.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the anti-leakage alloy sealing device comprises a valve cover 1, a valve body 2 and a valve rod 9, wherein the valve cover 1 is connected with the top of the valve body 2, the valve rod 9 passes through the valve cover 1 and extends into the valve body 2, two sealing rings 8 are sleeved between the valve rod 9 and the valve cover 1, a storage box 4 is sleeved on the outer side of the valve rod 9, the bottom of the storage box 4 is fixedly connected with the top of the valve cover 1, grooves 401 for containing the sealing rings 8 are symmetrically arranged on two sides of the storage box 4, through grooves 402 which penetrate through the grooves 401 are formed in two sides of the storage box 4, the inner surface walls of the bottoms of the grooves are collinear, a push rod 3 is arranged in the through groove 402 in a sliding mode, a push plate 7 is connected with the extending end of the push rod 3, the push plate 7 is driven to advance by pushing the push rod 3, the sealing rings 8 are pushed to move, the operation is convenient.

Specifically, as shown in fig. 1 and 2, the sealing ring 8 is an elastic rubber gasket with a notch, the notches of the sealing rings 8 on two sides face the valve rod 9, the sealing ring 8 is conveniently sleeved outside the valve rod 9, and simultaneously, the notches of the two sealing rings 8 on the valve rod 9 are located at opposite positions and complement each other, so that the sealing effect of the notch is ensured.

Specifically, as shown in fig. 1 and 2, the push plate 7 is a V-shaped plastic plate with an opening horizontally facing the valve rod 9, so that the seal ring 8 is pushed from both sides to move, and the seal ring 8 is prevented from being damaged.

Specifically, as shown in fig. 1, the outside of the valve rod 9 is rotatably connected with the gland 5, so that the rotation of the valve rod 9 cannot drive the gland 5 to rotate, the movement does not interfere with each other, the bottom of the gland 5 abuts against the top of the sealing ring 8, the position of the sealing ring 8 is fixed, and the sealing ring 8 is prevented from sliding in the vertical direction, so that the sealing performance is improved.

Specifically, as shown in fig. 1 and 3, through holes 501 are symmetrically formed in two sides of the gland 5, ejector pins 6 are arranged in the through holes 501, the ejector pins 6 move synchronously with the gland 5 and are inserted into the sealing rings 8 through the ejector pins 6, and therefore when the gland 5 is taken out, the worn sealing rings 8 can be directly taken out conveniently and quickly.

Specifically, as shown in fig. 1, the outer surface wall of the gland 5 is screwed with the inner surface wall of the storage box 4 through threads, so that the position of the gland 5 on the valve rod 9 can be conveniently adjusted, the sealing ring 8 can be conveniently replaced, and the through hole 501 close to the top of the gland 5 is screwed with the thimble 6 through threads, so that the thimble 6 can be suspended in the through hole 501 without being used, the sealing ring 8 cannot be damaged, and the thimble 6 can be ensured to synchronously move along with the gland 5.

The working principle is as follows: when the worn sealing ring 8 needs to be replaced, firstly, the thimble 6 is rotated to enable the bottom of the thimble to be screwed out of the through hole 501 and be inserted into the two sealing rings 8, then the gland 5 is rotated upwards to drive the thimble 6 and the sealing ring 8 at the bottom of the thimble to move upwards, so that the worn sealing ring 8 is taken out of the sealing connection between the valve rod 9 and the valve cover 1, the worn sealing ring 8 is taken down, the thimble 6 is retracted into the through hole 501, then the push rod 3 at one side is pushed, the push plate 7 is driven to push the sealing ring 8 at the bottom of the groove 401 to move towards the valve rod 9 until the push plate is pushed to be sleeved outside the valve rod 9, the sealing ring 8 slides downwards along the valve rod 9 under the action of gravity, then the push rod 3 at the other side is pushed, the action is repeated, so that the other sealing ring 8 is sleeved outside the valve rod 9, and finally, the gland 5 is screwed downwards until the sealing, the sealing effect is ensured, the sealing ring 8 is easy to replace, the operation is convenient, and the disassembly of any part on the valve is avoided.

The above, 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. An anti-leakage alloy sealing device comprises a valve cover (1), a valve body (2) and a valve rod (9), the valve cover (1) is connected with the top of the valve body (2), the valve rod (9) passes through the valve cover (1) and extends into the valve body (2), it is characterized in that two sealing rings (8) are sleeved between the valve rod (9) and the valve cover (1), the storage box (4) is sleeved outside the valve rod (9), the bottom of the storage box (4) is fixedly connected with the top of the valve cover (1), grooves (401) for accommodating the sealing rings (8) are symmetrically arranged at two sides of the storage tank (4), through grooves (402) penetrating through the grooves (401) are formed on the two sides of the storage box (4), and the inner surface walls of the bottoms of the through grooves are collinear, a push rod (3) is arranged in the through groove (402) in a sliding manner, and the extending end of the push rod (3) is connected with a push plate (7).

2. The leak-proof alloy sealing device according to claim 1, wherein the sealing ring (8) is an elastic rubber gasket with a gap, and the gaps of the sealing rings (8) on both sides face the valve rod (9).

3. The leak-proof alloy sealing device as claimed in claim 1, wherein the push plate (7) is a V-shaped plastic plate with an opening horizontally facing the valve stem (9).

4. The anti-leakage alloy sealing device according to claim 1, wherein a gland (5) is rotatably connected to the outside of the valve rod (9), and the bottom of the gland (5) abuts against the top of the sealing ring (8).

5. The leakage-proof alloy sealing device according to claim 4, wherein through holes (501) are symmetrically formed in both sides of the gland (5), and the ejector pins (6) are arranged in the through holes (501).

6. The alloy sealing device for preventing the leakage of the outside air as claimed in claim 5, wherein the outer surface wall of the gland (5) is screwed with the inner surface wall of the storage box (4), and the through hole (501) near the top of the gland (5) is screwed with the thimble (6).