CN212564419U

CN212564419U - Stop valve with seal structure

Info

Publication number: CN212564419U
Application number: CN202021429767.3U
Authority: CN
Inventors: 徐培德
Original assignee: Zigong Industrial Valve Manufacture Co ltd
Current assignee: Zigong Industrial Valve Manufacture Co ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-02-19
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a stop valve with seal structure, including ring flange, handle, shell and baffle, the both ends of shell are equipped with the ring flange, the inside welding of shell has the baffle, peg graft on the baffle and install the connecting pipe, the both sides skin weld of baffle has the gag lever post, the threaded rod is installed to the screw thread on the shell, just the threaded rod runs through the connecting pipe, the closing plate is installed to the both ends screw thread that lies in the connecting pipe on the threaded rod, a side surface paste of closing plate has the rubber pad. The utility model discloses possess when water pressure is great, closing plate accessible water pressure tightly covers, increases the advantage of valve body leakproofness.

Description

Stop valve with seal structure

Technical Field

The utility model relates to a stop valve technical field specifically is a stop valve with seal structure.

Background

The shut-off valve is of relatively short opening or closing stroke and has a very reliable shut-off action, so that the valve is suitable for use as a medium shut-off or regulating and throttling valve and is therefore very popular. In the process of opening and closing the stop valve, the valve rod and the valve body need to be kept in a sealing state, the valve rod and the valve body are usually sealed by adopting packing, more packing is usually filled in order to ensure that the valve rod and the valve body are well sealed, the packing is filled more so that the sealing resistance is larger, the opening and closing are more laborious, the packing and the sealing material of the matching part of the valve rod are easy to wear, when the sealing effect cannot be achieved, the packing is more troublesome to replace, and when the water pressure is larger, the sealing structure in the valve body is easy to damage, and the.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stop valve with seal structure, possess when water pressure is great, closing plate accessible water pressure tightly covers, increase the advantage of valve body leakproofness, the in-process of opening and closing at the stop valve has been solved, valve rod and valve body need keep encapsulated situation, adopt the packing seal usually, often pack more filler for making valve rod and valve body seal well, it makes the great messenger of sealing resistance to open and close more hard to pack more, pack and the easy wearing and tearing of valve rod cooperation part sealing material, when can not reach sealed effect, it is more troublesome to pack to change, and easily lead to the seal structure in the valve body impaired when water pressure is great, influence the problem of normal use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a stop valve with seal structure, includes ring flange, handle, shell and baffle, the both ends of shell are equipped with the ring flange, the inside welding of shell has the baffle, the connecting pipe is installed in pegging graft on the baffle, the both sides skin weld of baffle has the gag lever post, the threaded rod is installed to the screw thread on the shell, just the threaded rod runs through the connecting pipe, the both ends screw thread that lies in the connecting pipe on the threaded rod installs the closing plate, a side surface paste of closing plate has the rubber pad.

Preferably, a sealing bearing is sleeved on the outer side of the threaded rod, and the threaded rod is rotatably installed on the shell through the sealing bearing.

Preferably, the sealing plate is provided with a limiting hole and a threaded hole in a penetrating manner, and the position and the size of the limiting hole and the threaded hole are respectively matched with the position and the size of the limiting rod and the threaded rod.

Preferably, a handle is fixed at one end of the threaded rod, which is far away from the shell.

Preferably, the rubber pad is located on a side surface of the sealing plate facing the connection pipe.

Compared with the prior art, the beneficial effects of the utility model are that: through setting up the closing plate, and closing plate threaded mounting is on the threaded rod, the screw thread has been seted up at the both ends of threaded rod, and two sections screw thread opposite direction, two sections screw thread at the both ends symmetric distribution of connecting pipe, and the closing plate is spacing to be installed on the gag lever post, and paste on the closing plate and have the rubber pad, the user is when using, but manual turning handle, the handle drives the threaded rod and rotates, the threaded rod drives the closing plate through lead screw nut principle and opens to both sides, thereby make the valve body inside switch on, when needs close the route, the user can manually with handle rotation in the opposite direction, make the threaded rod drive the closing plate through lead screw nut principle and locate the closure to the connecting pipe, and then end valve body internal passage, and when water pressure is great, closing plate accessible water.

Drawings

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

fig. 2 is a schematic top view of the sealing plate of the present invention.

In the figure: 1. a flange plate; 2. a threaded rod; 3. a handle; 4. a sealing plate; 5. a housing; 6. a partition plate; 7. a rubber pad; 8. sealing the bearing; 9. a limiting rod; 10. a connecting pipe; 11. a limiting hole; 12. a threaded bore.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 2, the present invention provides an embodiment: the utility model provides a stop valve with seal structure, includes ring flange 1, handle 3, shell 5 and baffle 6, and the both ends of shell 5 are equipped with ring flange 1, and the inside welding of shell 5 has baffle 6, and the grafting is installed connecting pipe 10 on the baffle 6, and the both sides skin weld of baffle 6 has gag lever post 9, and threaded rod 2 is installed to the screw thread on the shell 5, and threaded rod 2 deviates from the one end of shell 5 and is fixed with handle 3, and seal bearing 8 has been cup jointed in the outside of threaded rod 2.

The threaded rod 2 is rotatably installed on the shell 5 through a sealing bearing 8, the threaded rod 2 penetrates through the connecting pipe 10, sealing plates 4 are installed on the threaded rod 2 at two ends of the connecting pipe 10 through threads, when a user uses the valve, the handle 3 can be manually rotated, the handle 3 drives the threaded rod 2 to rotate, the threaded rod 2 drives the sealing plates 4 to be opened towards two sides through a screw rod and nut principle, so that the interior of the valve body is communicated, when a passage needs to be closed, the user can manually rotate the handle 3 towards the opposite direction, the threaded rod 2 drives the sealing plates 4 to be closed towards the connecting pipe 10 through the screw rod and nut principle, the passage inside the valve body is closed, a limiting hole 11 and a threaded hole 12 are formed in the sealing plate 4 in a penetrating mode, the positions and the sizes of the limiting hole 11 and the threaded hole 12 are respectively matched with the positions and the sizes of the, when the water pressure is high, the sealing plate 4 can be tightly pressed by the water pressure to increase the sealing performance of the valve body, and the rubber pad 7 is arranged on the surface of one side of the sealing plate 4 facing the connecting pipe 10.

The working principle is as follows: the user is when using, but manual turning handle 3, handle 3 drives threaded rod 2 and rotates, threaded rod 2 drives closing plate 4 through lead screw nut principle and opens to both sides, thereby make the valve body inside switch on, when the route is closed to needs, the user can be manual with handle 3 to the opposite direction rotation, make threaded rod 2 drive closing plate 4 through lead screw nut principle and locate the closure to connecting pipe 10, and then end valve body internal passage, and when water pressure is great, closing plate 4 accessible water pressure tightly covers, increase the valve body leakproofness.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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.

Claims

1. The utility model provides a stop valve with seal structure, includes ring flange (1), handle (3), shell (5) and baffle (6), its characterized in that: the both ends of shell (5) are equipped with ring flange (1), the inside welding of shell (5) has baffle (6), peg graft on baffle (6) and install connecting pipe (10), the both sides surface welding of baffle (6) has gag lever post (9), threaded rod (2) are installed to the screw thread on shell (5), just threaded rod (2) run through connecting pipe (10), both ends screw thread that lie in connecting pipe (10) on threaded rod (2) is installed and is sealed board (4), a side surface paste of sealed board (4) has rubber pad (7).

2. A shut-off valve with a sealing structure according to claim 1, wherein: the outer side of the threaded rod (2) is sleeved with a sealing bearing (8), and the threaded rod (2) is rotatably installed on the shell (5) through the sealing bearing (8).

3. A shut-off valve with a sealing structure according to claim 1, wherein: the sealing plate (4) is provided with a limiting hole (11) and a threaded hole (12) in a penetrating mode, and the position and the size of the limiting hole (11) and the threaded hole (12) are matched with those of the limiting rod (9) and the threaded rod (2) respectively.

4. A shut-off valve with a sealing structure according to claim 1, wherein: and a handle (3) is fixed at one end of the threaded rod (2) departing from the shell (5).

5. A shut-off valve with a sealing structure according to claim 1, wherein: the rubber pad (7) is positioned on one side surface of the sealing plate (4) facing the connecting pipe (10).