CN216407774U

CN216407774U - Novel gate valve

Info

Publication number: CN216407774U
Application number: CN202123234972.1U
Authority: CN
Inventors: 陈瑶
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-04-29
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to the technical field of valves, in particular to a novel gate valve, which comprises: the valve body is internally formed with a valve cavity and is provided with a water inlet end and a water outlet end which are communicated with the valve cavity; a valve cap mounted on the valve body for sealing the valve cavity; the valve rod is connected to the valve cap, and the lower end of the valve rod is arranged in the valve cavity; the water pressing assembly is arranged at the lower end of the valve rod and used for plugging the water inlet end; wherein, the pressurized-water subassembly has: the upper end surface of the water pressing plate is inwards sunken to form a connecting groove, and the bottom of the connecting groove is formed with a positioning groove; the valve rod is sleeved with a connecting ring, and a convex ring is formed on the outer wall of the lower end of the valve rod; after the lower end of the valve stem is seated in the seating groove, the connection ring is threadedly coupled into the connection groove, thereby restraining the male ring in the connection groove. The utility model solves the problems of large shaking amplitude, poor connection stability and serious influence on the sealing performance of the gate valve.

Description

Novel gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to a novel gate valve.

Background

The traditional gate valve comprises a valve body with a fluid channel and a valve rod for opening and closing the fluid channel, wherein one end of the valve body is positioned in the valve body, the other end of the valve body is positioned outside the valve body, a hand wheel is arranged at one end of the valve body, which is positioned outside the valve body, and the hand wheel is rotated to enable the valve body to move up and down, so that the purpose of opening and closing the gate valve is achieved.

For example, chinese patent 201610179621.X discloses a gate valve, which includes a valve body having a fluid passage and a valve rod having one end located in the valve body, the valve rod is detachably connected with the valve body, the valve rod is provided with an air bag for blocking the fluid passage and an air passage communicated with the inside of the air bag, the one end of the air passage penetrates the valve rod and protrudes out of one end of the valve body, when the gate valve needs to be closed, the air in the air passage is inflated by inflating the air passage, so that the air bag is inflated, and when the air bag is expanded to a certain extent, the air bag blocks the fluid passage, so that the gate valve is closed; when the gate valve needs to be opened, the air in the air bag is discharged through the air channel, and then the gate valve is opened.

In the design of the existing gate valve, the connection mode between the gate plate and the valve rod is clamping connection, and the end part of the valve rod is provided with the gate plate by utilizing a clamp spring. However, the mode can cause large shaking amplitude between the gate plate and the valve rod, the connection stability is poor, and the sealing performance of the gate valve is seriously affected.

Disclosure of Invention

The utility model aims to provide a novel gate valve, which is characterized in that a connecting piece is additionally arranged on a valve rod and is in threaded connection with a connecting groove, a convex ring is limited in the connecting groove, a water pressing assembly and the valve rod are mounted, and the problems of large shaking amplitude, poor connection stability and serious influence on the sealing performance of the gate valve are solved.

The purpose of the utility model is realized as follows:

a novel gate valve comprising:

the valve body is internally formed with a valve cavity and is provided with a water inlet end and a water outlet end which are communicated with the valve cavity;

a valve cap mounted on the valve body for sealing the valve cavity;

the valve rod is connected to the valve cap, and the lower end of the valve rod is arranged in the valve cavity;

the water pressing assembly is arranged at the lower end of the valve rod and used for plugging the water inlet end;

wherein, the pressurized-water subassembly has:

the upper end surface of the water pressing plate is inwards sunken to form a connecting groove, and the bottom of the connecting groove is formed with a positioning groove;

the valve rod is sleeved with a connecting ring, and a convex ring is formed on the outer wall of the lower end of the valve rod;

after the lower end of the valve stem is seated in the seating groove, the connection ring is threadedly coupled into the connection groove, thereby restraining the male ring in the connection groove.

Preferably, the lower end part of the valve rod is formed with a positioning boss, and the outer diameter of the positioning boss is matched with the diameter of the positioning groove;

the lower end edge of the positioning boss is formed with a guide surface for guiding the positioning boss into the positioning groove.

Preferably, the end of the connecting ring is formed with a convex edge, the convex edge protrudes out of the outer wall of the connecting ring, and the outer wall of the connecting ring is formed with threads;

after the connecting ring is in threaded connection with the inner wall of the connecting groove, the convex edge is abutted against the end part of the connecting groove.

Preferably, the protrusion is formed with an adjustment groove for an external tool to be inserted to rotate the coupling ring.

Preferably, the method further comprises the following steps:

the middle part of the rubber pressing plate is downwards sunken to form an installation groove, and a clamping bulge is formed on the side wall of the installation groove;

a clamping groove is formed in the middle of the water pressing plate;

after the middle part of pressurized-water board inserted in the mounting groove, the protruding joint of joint was in the joint inslot, realized that the installation of rubber clamp plate on the pressurized-water board is fixed.

Preferably, the edge of the rubber pressure plate is formed with a sealing ring;

a sealing table-board is formed on the inner wall of the valve cavity at the water inlet end;

when the sealing ring is pressed on the sealing table surface, the water inlet end is blocked.

Compared with the prior art, the utility model has the outstanding and beneficial technical effects that:

the design of the utility model is that the pressure water plate is connected by the connecting ring through threads, the convex ring is restricted in the connecting groove, and the installation and connection of the pressure water plate and the valve rod are realized.

Drawings

Fig. 1 is a schematic structural diagram of the novel gate valve of the utility model.

Fig. 2 is a cross-sectional view of the novel gate valve of the present invention.

Fig. 3 is an exploded view of the valve stem and pressurized water assembly of the present invention.

Fig. 4 is a schematic structural view of the valve stem and the pressurized water module of the present invention in a connected state.

Fig. 5 is a sectional view of the valve stem and water pressurizing assembly of the present invention.

Reference numerals: 1. a valve body; 2. a valve cavity; 3. a water inlet end; 4. a water outlet end; 5. a bonnet; 6. a valve stem; 7. a water pressurizing assembly; 8. a water pressing plate; 9. a connecting groove; 10. positioning a groove; 11. a connecting ring; 12. a convex ring; 13. positioning the boss; 14. a guide surface; 15. a convex edge; 16. adjusting the groove; 17. a rubber press plate; 18. mounting grooves; 19. clamping the bulges; 20. a clamping groove; 21. a seal ring; 22. and sealing the table top.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-2, a novel gate valve comprises:

the valve comprises a valve body 1, a valve cavity 2 is formed in the valve body 1, and a water inlet end 3 and a water outlet end 4 which are communicated with the valve cavity 2 are arranged on the valve body 1, in the embodiment, the water inlet end 3 and the water outlet end 4 are distributed at 90 degrees, an opening is also arranged on the valve body 1, and the opening and the water inlet end 3 are arranged coaxially;

the valve cap 5 is arranged on the opening of the valve body 1 and is connected in a threaded manner, and is mainly used for sealing the valve cavity 2;

the lower end of the valve rod 6 penetrates through the valve and is arranged in the valve cavity 2, the valve rod 6 is in threaded connection with the valve cap 5, a plurality of sealing rings are arranged on the valve cap, and the upper end of the valve rod 6 is arranged on the outer side of the valve body 1 and is provided with a hand wheel;

the water pressurizing assembly 7 is arranged in the valve cavity 2 and is arranged at the lower end of the valve rod 6, and the position of the water pressurizing assembly 7 is adjusted by rotating the valve rod 6, so that the water inlet end 3 is controlled to be communicated or blocked;

as shown in fig. 3 to 5, the water pressurizing assembly 7 has:

the water pressing plate 8 is round as a whole and follows the shape of the valve cavity 2, the upper end surface of the water pressing plate is inwards sunken to form a connecting groove 9, a positioning groove 10 is formed at the bottom of the connecting groove 9, and the edge of the water pressing plate 8 is turned downwards to form a butting edge;

a connecting ring 11 is sleeved on the valve rod 6, and a convex ring 12 is formed on the outer wall of the lower end of the valve rod 6;

after the lower end of the valve stem 6 is seated in the seating groove 10, the connection ring 11 is threadedly coupled into the connection recess 9, thereby restraining the male ring 12 in the connection recess 9.

The connecting ring 11 cannot be separated from the front end of the valve rod 6 under the constraint of the convex ring 12, so that the lower end of the valve rod 6 can be connected on the water pressing plate 8.

The design of the utility model is that the connecting ring 11 is used for connecting the water pressing plate 8 in a threaded manner, the convex ring 12 is restricted in the connecting groove 9, and the installation and connection of the water pressing plate 8 and the valve rod 6 are realized.

In the prior art, the lower end of a valve rod 6 is clamped in a water pressing plate 8 in a clamping spring mode, and the clamping spring is thin and cannot play a certain constraint role on the valve rod 6, so that the shaking amplitude is large, and the situation of untight sealing can exist during sealing; and the go the go-between 11 because the cover is established on the valve rod 6, itself has the height that moves, after go the go-between 11 and be connected to the pressurized-water board 8 on, on the one hand can restrain bulge loop 12, on the other hand probably has certain restrictive force to the outer wall of valve rod 6 to reduce the range of rocking, further guarantee sealed effect.

A positioning boss 13 is formed at the lower end part of the valve rod 6, and the outer diameter of the positioning boss 13 is matched with the diameter of the positioning groove 10;

the adaptive means that the positioning boss 13 can be just inserted into the positioning slot 10 without excessive gaps, so that the positioning boss 13 enters the positioning slot 10, and the axis of the positioning boss 13 and the axis of the positioning slot 10 coincide as much as possible.

This ensures that the distance from the outer wall of the valve stem 6 to the inner wall of the coupling recess 9 is substantially the same, so that the coupling ring 11 can be accurately and conveniently mounted and coupled.

The lower edge of the positioning boss 13 is formed with a guide surface 14 for guiding the positioning boss 13 into the positioning slot 10.

The size of the end face can be reduced by the guide face 14, so that the positioning boss 13 can conveniently enter the positioning groove 10, and the purpose of quick installation is realized.

A convex edge 15 is formed at the end part of the connecting ring 11, the convex edge 15 protrudes out of the outer wall of the connecting ring 11, and the outer wall of the connecting ring 11 is provided with threads;

when the connection ring 11 is screwed to the inner wall of the connection groove 9, the flange 15 abuts against the end of the connection groove 9.

The flange 15 limits the position of the connection ring 11 in the connection groove 9, and when the flange 15 abuts against the end of the connection groove 9, it is verified that the connection ring 11 is mounted in place, i.e. the mounting of the connection ring 11 in the connection groove 9 is completed.

The flange 15 is formed with an adjustment groove 16 for an external tool to be inserted to rotate the connection ring 11.

The adjusting groove 16 can be used for inserting and clamping an external tool, so that the connecting ring 11 can be rotated conveniently, and the connecting ring 11 can be installed more conveniently.

The water pressurizing assembly 7 also comprises a rubber pressing plate 17, the rubber pressing plate 17 is mainly arranged on the lower end face of the water pressurizing plate 8, and the structure is as follows;

a rubber pressure plate 17, the middle part of which is depressed downwards to form a mounting groove 18, the side wall of the mounting groove 18 is formed with a clamping bulge 19, and the whole shape is similar to a bowl shape;

a clamping groove 20 is formed in the middle of the water pressing plate 8, and the shape of the water pressing plate 8 is similar to a bowl shape;

after the middle part of the water pressing plate 8 is inserted into the mounting groove 18, the rubber pressing plate 17 is buckled at the lower end of the water pressing plate 8, so that the clamping protrusion 19 is clamped in the clamping groove 20, and the rubber pressing plate 17 can be mounted and fixed on the water pressing plate 8.

A sealing table top 22 is formed on the inner wall of the valve cavity 2 at the water inlet end 3;

the rubber pressure plate 17 is mainly used for abutting against the sealing table top 22 to seal the water inlet end 3.

The rubber pressing plate 17 has the same function as the sealing washer and is used for sealing, the rubber pressing plate 17 is soft and can deform, and can perfectly attach to the sealing table top 22, so that sealing can be guaranteed.

In order to further ensure the sealing performance, the edge of the rubber pressure plate 17 is formed with a sealing ring 21, and the edge thickness is increased, so that after the pressure plate 8 is pressed against the sealing table top 22, the sealing ring 21 can provide enough deformation, and the sealing performance is further ensured.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A novel gate valve, characterized by comprising:

the valve body (1) is internally formed with a valve cavity (2), and the valve body (1) is provided with a water inlet end (3) and a water outlet end (4) which are communicated with the valve cavity (2);

a valve cap (5) mounted on the valve body (1) for sealing the valve cavity (2);

the valve rod (6) is connected to the valve cap (5), and the lower end of the valve rod is arranged in the valve cavity (2);

the water pressing assembly (7) is arranged at the lower end of the valve rod (6) and is used for plugging the water inlet end (3);

wherein the water pressurizing assembly (7) comprises:

the upper end surface of the water pressing plate (8) is inwards sunken to form a connecting groove (9), and the bottom of the connecting groove (9) is formed with a positioning groove (10);

a connecting ring (11) is sleeved on the valve rod (6), and a convex ring (12) is formed on the outer wall of the lower end of the valve rod (6);

after the lower end of the valve rod (6) is placed in the positioning groove (10), the connecting ring (11) is screwed into the connecting groove (9), so that the convex ring (12) is restrained in the connecting groove (9).

2. The new gate valve of claim 1, wherein:

a positioning boss (13) is formed at the lower end part of the valve rod (6), and the outer diameter of the positioning boss (13) is matched with the diameter of the positioning groove (10);

the lower end edge of the positioning boss (13) is formed with a guide surface (14) for guiding the positioning boss (13) into the positioning groove (10).

3. The new gate valve of claim 1, wherein:

a convex edge (15) is formed at the end part of the connecting ring (11), the convex edge (15) protrudes out of the outer wall of the connecting ring (11), and threads are formed on the outer wall of the connecting ring (11);

when the connecting ring (11) is in threaded connection with the inner wall of the connecting groove (9), the convex edge (15) abuts against the end part of the connecting groove (9).

4. The new gate valve of claim 3, wherein:

the convex edge (15) is formed with an adjusting groove (16) for inserting an external tool to rotate the connecting ring (11).

5. The new gate valve of claim 1, further comprising:

the middle part of the rubber pressure plate (17) is downwards sunken to form an installation groove (18), and a clamping bulge (19) is formed on the side wall of the installation groove (18);

a clamping groove (20) is formed in the middle of the water pressing plate (8);

after the middle part of the water pressing plate (8) is inserted into the mounting groove (18), the clamping bulge (19) is clamped in the clamping groove (20), and the rubber pressing plate (17) is fixedly mounted on the water pressing plate (8).

6. The new gate valve of claim 5, wherein:

a sealing ring (21) is formed at the edge of the rubber pressing plate (17);

a sealing table top (22) is formed on the inner wall of the valve cavity (2) at the water inlet end (3);

when the sealing ring (21) is pressed against the sealing table top (22), the water inlet end (3) is blocked.