CN215831185U

CN215831185U - Gate valve

Info

Publication number: CN215831185U
Application number: CN202120959679.2U
Authority: CN
Inventors: 郭理军; 严荣杰; 蔡小飞
Original assignee: Ningbo Jklong Precision Work Co ltd
Current assignee: Ningbo Jklong Precision Work Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-02-15
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses a gate valve, comprising: the valve comprises a valve body and a valve plate, wherein a flow channel is arranged in the valve body, the valve plate is movably arranged in the valve body, the valve plate is matched with the flow channel in a plugging mode, and a first through hole is transversely formed in the side wall of the valve plate. According to the utility model, the weight of the flashboard is reduced by punching the middle of the flashboard, the speed of the flashboard automatically sliding down along with gravity in the opening process is reduced, and meanwhile, the accumulation of impurities and dirt in the cavity of the valve plate can be reduced.

Description

Gate valve

Technical Field

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

Background

The gate valve is a valve with a gate plate moving along the vertical direction of the central line of a passage, and generally comprises a valve body, a valve seat, a valve rod, a gate plate, a valve cover, a sealing ring and the like. The gate valve has the advantages of small flow resistance, medium flowing to any direction at two sides, easy installation, simple body, short structure length and the like, and is widely applied to various large fields for civil use and industry.

The flashboard quality of the gate valve in the prior art is heavy, easily shakes when the medium circulates, and there is the not hard up easy landing possibility of screw thread in the flashboard after long-time work, and there is the easy impurity scheduling problem of piling up in the flashboard cavity simultaneously.

Disclosure of Invention

The above-mentioned problem to current gate valve existence now aims at providing a gate valve, through the mode of punching in the middle of the flashboard, reduces the weight of flashboard, slows down the flashboard and is opening the speed of in-process along with the automatic landing of gravity, can reduce the accumulation of interior impurity of valve plate cavity and dirt simultaneously.

The specific technical scheme is as follows:

a gate valve, comprising: the valve comprises a valve body and a valve plate, wherein a flow channel is arranged in the valve body, the valve plate is movably arranged in the valve body, the valve plate is matched with the flow channel in a plugging mode, and a first through hole is transversely formed in the side wall of the valve plate.

In the gate valve, the valve plate is longitudinally provided with the second through hole.

In the gate valve, a central axis of the first through hole is perpendicular to a central axis of the second through hole.

The valve plate comprises a connecting portion and a gate plate body which are connected with each other from top to bottom, the first through hole is transversely formed in the side wall of the gate plate body, and the second through hole is longitudinally formed in the connecting portion and the gate plate body in a matched mode.

In the gate valve, at least one reinforcing rib is arranged between the connecting part and the upper end of the gate plate body.

The gate valve described above, wherein, still include: and the lower end of the valve rod extends into the second through hole and is fixedly connected with the inner periphery of the valve plate, which is positioned at the upper end of the second through hole.

In the above gate valve, the lower end of the valve rod is connected to the connecting portion by a screw.

The gate valve described above, wherein, still include: valve gap and gland, the lower extreme of valve gap with the upside fixed connection of valve body, the gland with the upper end fixed connection of valve gap, the valve rod runs through from last to down in proper order the gland with the valve gap, and with valve plate fixed connection.

The gate valve is characterized in that a sealing gasket is arranged between the gland and the valve cover, the sealing gasket is sleeved on the periphery of the valve rod, and a pressing ring is arranged between the sealing gasket and the gland in a supporting mode.

In the gate valve, the inner periphery of the valve cover is provided with the clamping groove, and the baffle ring is arranged between the clamping groove and the valve rod.

Compared with the prior art, the technical scheme has the positive effects that:

according to the utility model, through a mode of transversely punching on the gate plate, the weight of the gate plate is reduced, the speed of automatic sliding of the gate plate under the action of the gravity of the gate plate in the use process of the gate valve is reduced, the stability of the gate plate in a fluid can be balanced through the transverse hole, the vibration generated by the gate plate due to the change of the fluid is reduced, meanwhile, the formation of water scale in an inner hole of the gate plate can be reduced, and the accumulation of dirt in a valve cavity is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of a gate valve according to the present invention;

FIG. 2 is a schematic structural diagram of a gate plate of a gate valve according to the present invention;

FIG. 3 is a schematic structural diagram of a gate plate of a gate valve according to the present invention;

FIG. 4 is a schematic view of a valve stem of a gate valve according to the present invention;

in the drawings: 1. a valve body; 2. a valve plate; 3. a flow channel; 4. a first through hole; 5. a second through hole; 6. a connecting portion; 7. a shutter body; 8. reinforcing ribs; 9. a valve stem; 10. a valve cover; 11. a gland; 12. a valve cover screwed end; 13. a gasket; 14. pressing a ring; 15. a clamping groove; 16. a baffle ring; 17. a ring groove; 18. And (5) sealing rings.

Detailed Description

The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

Fig. 1 is an overall structural view of a gate valve of the present invention, fig. 2 is a structural view of a gate plate of a gate valve of the present invention, fig. 3 is a structural view of a gate plate of a gate valve of the present invention, fig. 4 is a structural view of a stem of a gate valve of the present invention, as shown in fig. 1 to 4, showing a gate valve according to a preferred embodiment, including: valve body 1 and valve plate 2 have runner 3 in the valve body 2, and in valve body 1 was located in the activity of valve plate 2,

valve plate

2 and 3 shutoff cooperations of runner transversely were equipped with first through-hole 4 on the lateral wall of valve plate 2.

Further, as a preferred embodiment, the valve plate 2 is provided with a second through hole 5 in the longitudinal direction.

Further, as a preferred embodiment, the central axis of the first through hole 4 is perpendicular to the central axis of the second through hole 5.

The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.

The present invention also has the following embodiments in addition to the above:

in a further embodiment of the present invention, please refer to fig. 1 to 4, the valve plate 2 includes a connecting portion 6 and a shutter body 7 connected to each other vertically, a first through hole 4 is transversely formed on a side wall of the shutter body 7, and a second through hole 5 is longitudinally formed on the connecting portion 6 and the shutter body 7 in a matching manner.

In a further embodiment of the present invention, at least one reinforcing rib 8 is provided between the connecting portion 6 and the upper end of the shutter body 7.

In a further embodiment of the utility model, the gate valve further comprises: and the lower end of the valve rod 9 extends into the second through hole 5 and is fixedly connected with the inner periphery of the valve plate 2, which is positioned at the upper end of the second through hole 5.

In a further embodiment of the utility model, the lower end of the valve stem 9 is screwed to the connecting portion 6.

In a further embodiment of the utility model, the gate valve further comprises: the valve comprises a valve cover 10 and a gland 11, wherein the lower end of the valve cover 10 is fixedly connected with the upper side of the valve body 1, the gland 11 is fixedly connected with the upper end of the valve cover 10, and a valve rod 9 sequentially penetrates through the gland 11 and the valve cover 10 from top to bottom and is fixedly connected with the valve plate 2.

Preferably, the valve body 1 is a three-way type, both ends of the valve body 1 are flow ends of the flow channel 3, the upper side of the valve body 1 is a valve cover screwed end 12, and the valve cover 10 is screwed with the valve cover screwed end 12.

In a further embodiment of the present invention, a sealing gasket 13 is disposed between the gland 11 and the valve cover 10, the sealing gasket 13 is sleeved on the outer periphery of the valve rod 9, and a pressing ring 14 is disposed between the sealing gasket 13 and the gland 11. Preferably, the gasket 13 seals the valve stem 9 to the bonnet 10.

In a further embodiment of the utility model, the valve cover 10 is provided with a clamping groove 15 on the inner circumference, and a retaining ring 16 is arranged between the clamping groove 15 and the valve rod 9.

Preferably, the valve rod 9 is provided with a ring groove 17, and a sealing ring 18 is embedded in the ring groove 17.

According to the utility model, through a mode of transversely punching the gate plate 2, the weight of the gate plate 2 is reduced, the automatic sliding speed of the gate valve due to the gravity action of the gate plate 2 in the use process is reduced, through the transverse holes, the gate plate 2 can be balanced to increase the stability of the gate plate in a fluid, the vibration generated by the change of the fluid in the gate plate is reduced, meanwhile, the formation of water scale in an inner hole of the gate plate 2 can be reduced, and the accumulation of dirt in a valve cavity is avoided.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A gate valve, comprising: the valve comprises a valve body and a valve plate, wherein a flow channel is arranged in the valve body, the valve plate is movably arranged in the valve body, and the valve plate is matched with the flow channel in a plugging manner.

2. The gate valve of claim 1, wherein the valve plate is longitudinally provided with a second through hole.

3. The gate valve of claim 2, wherein a central axis of the first through-hole is disposed perpendicular to a central axis of the second through-hole.

4. The gate valve of claim 3, wherein the valve plate comprises a connecting portion and a gate body connected to each other, the first through hole is transversely formed in a sidewall of the gate body, and the second through hole is longitudinally formed in the connecting portion and the gate body in a matching manner.

5. The gate valve of claim 4, wherein at least one rib is provided between the connecting portion and the upper end of the gate plate body.

6. The gate valve of claim 4, further comprising: and the lower end of the valve rod extends into the second through hole and is fixedly connected with the inner periphery of the valve plate, which is positioned at the upper end of the second through hole.

7. The gate valve of claim 6, wherein the lower end of the stem is threadedly connected to the connecting portion.

8. The gate valve of claim 6, further comprising: valve gap and gland, the lower extreme of valve gap with the upside fixed connection of valve body, the gland with the upper end fixed connection of valve gap, the valve rod runs through from last to down in proper order the gland with the valve gap, and with valve plate fixed connection.

9. The gate valve of claim 8, wherein a sealing gasket is arranged between the gland and the valve cover, the sealing gasket is sleeved on the periphery of the valve rod, and a pressing ring is arranged between the sealing gasket and the gland in a propping manner.

10. The gate valve of claim 8, wherein the valve cap is provided with a locking groove on an inner circumference thereof, and a stopper ring is provided between the locking groove and the valve stem.