CN218063462U

CN218063462U - Improved gate valve

Info

Publication number: CN218063462U
Application number: CN202222234340.3U
Authority: CN
Inventors: 吴振成
Original assignee: Zhejiang Chaocheng Valve Manufacturing Co ltd
Current assignee: Zhejiang Chaocheng Valve Manufacturing Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2022-12-16
Anticipated expiration: 2032-08-24

Abstract

The utility model belongs to the technical field of the valve technique and specifically relates to an improved generation gate valve, including gate valve body and valve gap, the bottom and the gate valve body of valve gap closely laminate, the top both sides of gate valve body link to each other with seal gasket is fixed, the bottom and the valve plate of gate valve body laminate mutually, the outer wall top and the seal gasket of valve plate closely laminate, the inner wall and the valve rod screw thread of valve plate link to each other, the top and the hand wheel of valve rod are fixed to be linked to each other, the outer wall of hand wheel passes through sealed bearing and valve gap rotation and links to each other. Spacing ball, montant and first spring through among the fixing device are fixed gate valve body and valve gap, have replaced original gate valve and have carried out the mode fixed through bolt and valve gap and valve body, have avoided because the bolt contacts with external humid air for a long time, cause inside to rust ageing easily, lead to the bolt to appear blocking the condition in dismantling the in-process, make the user dismantle comparatively laborsavingly.

Description

Improved gate valve

Technical Field

The utility model relates to the technical field of valves, specifically be an improved generation gate valve.

Background

The gate valve is an opening and closing member gate plate, the moving direction of the gate plate is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled, the gate valve is sealed by the contact of a valve seat and the gate plate, and metal materials are usually welded on a sealing surface to increase the wear resistance.

The gate valve is after long-time the use, leads to inside sealing member because of the gas or the liquid corrosion of transport easily to cause inside sealing member to damage, consequently need carry out periodic replacement to the inside sealing member of gate valve, the valve gap and the valve body of current gate valve realize fixed connection through the bolt, because the bolt contacts with external humid air for a long time, cause inside rust easily and age, make the bolt appear the card circumstances of pausing at the dismantlement in-process, lead to dismantling comparatively difficultly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem of current gate valve that comparatively hard when dismantling valve gap and valve body, and the improved generation gate valve that provides.

In order to achieve the above object, the utility model provides a following technical scheme:

the design is an improved gate valve, which comprises a gate valve body and a valve cover, wherein the bottom of the valve cover is tightly attached to the gate valve body, the two sides of the top of the gate valve body are fixedly connected with a sealing gasket, the bottom of the gate valve body is attached to a valve plate, the top of the outer wall of the valve plate is tightly attached to the sealing gasket, the inner wall of the valve plate is in threaded connection with a valve rod, the top of the valve rod is fixedly connected with a hand wheel, the outer wall of the hand wheel is connected with the valve cover through a sealing bearing in a rotating mode, and the outer side of the valve cover is provided with a plurality of fixing devices.

Preferably, fixing device includes the stopper, and is a plurality of the bottom of stopper all laminates with the valve gap mutually, the bottom and the sleeve of stopper are fixed to be linked to each other, telescopic inside and a plurality of spacing ball looks joint, the inner of spacing ball all closely laminates with the montant, the middle part and the sleeve of montant slide to link to each other, the top and the stopper of montant slide to link to each other, the bottom of montant is fixed with the top of first spring to be linked to each other, the bottom and the sleeve of first spring are fixed to be linked to each other.

Preferably, the outer side of the limiting ball at the top is tightly attached to the groove of the valve cover.

Preferably, the outer side of the limiting ball at the bottom is tightly attached to the groove of the valve cover.

Preferably, the two sides of the outer wall of the sleeve are respectively attached to the valve body and the circular holes of the valve cover.

The utility model provides an improved generation gate valve, beneficial effect lies in: through spacing ball, montant and the first spring among the fixing device to gate valve body and valve gap fixed, replaced original gate valve and carried out the mode fixed through bolt and valve gap and valve body, avoided because the bolt contacts with external humid air for a long time, cause inside to rust ageing easily, lead to the bolt to appear blocking the condition in dismantling the in-process, make the dismantlement comparatively laborsaving.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is a schematic structural diagram of a in fig. 2.

In the figure: 1. the gate valve body, 2, valve gap, 3, hand wheel, 4, fixing device, 4a1, stopper, 4a2, spacing ball, 4a3, first spring, 4a4, montant, 4a5, sleeve, 4b1, second spring, 4b2, inserted bar, 5, seal gasket, 6, valve plate, 7, valve rod.

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.

Example 1:

referring to fig. 1-3, the present invention provides a technical solution: an improved gate valve comprises a gate valve body 1 and a valve cover 2, wherein the bottom of the valve cover 2 is tightly attached to the gate valve body 1, two sides of the top of the gate valve body 1 are fixedly connected with a sealing gasket 5, a user rotates a hand wheel 3 to drive a valve rod 7 to rotate, the valve rod 7 rotates, meanwhile, the valve plate 6 moves along the outer wall of the valve rod 7 due to the idle state of the sealing gaskets 5 on the two sides, the opening and closing of the gate valve body are realized by rotating the direction of the hand wheel 3, the bottom of the gate valve body 1 is attached to the valve plate 6, the top of the outer wall of the valve plate 6 is tightly attached to the sealing gasket 5, the inner wall of the valve plate 6 is in threaded connection with the valve rod 7, the top end of the valve rod 7 is fixedly connected with the hand wheel 3, the outer wall of hand wheel 3 passes through sealed bearing and valve gap 2 and rotates continuously, the outside of valve gap 2 is equipped with a plurality of fixing device 4, the gate valve is after long-time the use, lead to inside sealing member because of the gas or the liquid corrosion of transport easily, thereby cause inside sealing member to damage, consequently, need carry out periodic replacement to the inside sealing member of gate valve, the valve gap and the valve body of current gate valve realize fixed connection through the bolt, because the bolt contacts with external humid air for a long time, cause inside rust easily ageing, make the bolt in the dismantlement in-process the card circumstances of breaking down appear, lead to the user to dismantle comparatively difficultly.

Referring to fig. 2 and 3, the fixing device 4 includes a limiting block 4a1, bottom ends of a plurality of limiting blocks 4a1 are attached to the valve cap 2, the bottom end of the limiting block 4a1 is fixedly connected to a sleeve 4a5, an inside of the sleeve 4a5 is clamped to a plurality of limiting balls 4a2, inner ends of the limiting balls 4a2 are closely attached to a vertical rod 4a4, a middle portion of the vertical rod 4a4 is slidably connected to the sleeve 4a5, a top portion of the vertical rod 4a4 is slidably connected to the limiting block 4a1, a bottom end of the vertical rod 4a4 is fixedly connected to a top end of a first spring 4a3, a bottom end of the first spring 4a3 is fixedly connected to the sleeve 4a5, an elastic coefficient of the first spring 4a3 can be selected according to actual use conditions, an outer side of the limiting ball 4a2 at the top is closely attached to a groove of the valve cap 2, the top end of the vertical rod 4a4 is provided with a ball, so that a user can press the vertical rod 4a4 downwards conveniently, the vertical rod 4a4 slides along the inner walls of the limiting block 4a1 and the sleeve 4a5, the first spring 4a3 is driven to compress, the outer wall of the vertical rod 4a4 is provided with a groove, when the lowest point of the groove of the vertical rod 4a4 is parallel to the circle of the limiting ball, the limit of the limiting ball 4a2 is relieved by the vertical rod 4a4, the limiting ball 4a2 can roll inside, the limiting balls 4a2 on two sides are contacted and attached with the cover plate 2 and the groove of the valve body 1, the outside of the limiting ball 4a2 at the bottom is closely attached to the groove of the valve cover 2, and the two sides of the outer wall of the sleeve 4a5 are respectively attached to the circular holes of the valve body 1 and the valve cover 2;

the user presses montant 4a4 once more, make montant 4a4 and spacing ball 4a2 remove the laminating, then insert the inside of gate valve body 1 and valve gap 2 with sleeve 4a5, then loose montant 4a4, montant 4a4 receives the influence of first spring 4a3 elasticity to make montant 4a4 drive spacing ball 4a2 and apron 2 and the recess of valve body 1 of both sides closely laminate, thereby the realization is fixed gate valve body 1 and valve gap 2, valve gap and the valve body of having solved current gate valve realize fixed connection through the bolt, because the bolt contacts with external humid air for a long time, cause inside rust ageing easily, lead to the user to dismantle comparatively hard problem.

The working principle is as follows:

the gate valve body 1 is connected with an external pipeline through flanges at two sides, so that the gate valve body 1 can control the circulation of conveying liquid or gas, after the gate valve is used for a long time, the sealing element inside the gate valve is easy to corrode due to the conveyed gas or liquid, so that the sealing element inside the gate valve is damaged, therefore, the sealing element inside the gate valve needs to be replaced periodically to ensure the normal use of the gate valve, a user firstly presses one vertical rod 4a4 downwards, the vertical rod 4a4 slides downwards along the inner walls of a limiting block 4a1 and a sleeve 4a5, meanwhile, the vertical rod 4a4 drives a first spring 4a3 to compress, the lowest point of a groove of the vertical rod 4a4 is parallel to the circle of the limiting ball, the limiting ball 4a2 is removed by the vertical rod 4a4, so that the limiting ball 4a2 can roll inwards, and the limiting balls 4a2 at two sides are in contact fit with the cover plate 2 and the groove of the valve body 1, thereby take out sleeve 4a5 through stopper 4a1, dismantle other fixing device 4 in proper order with the same reason, thereby seal gasket 5 and valve plate 6 are changed, after the change is accomplished, the user presses montant 4a4 once more, make montant 4a4 and spacing ball 4a2 remove the laminating, then insert the inside of gate valve body 1 and valve gap 2 with sleeve 4a5, then loose montant 4a4, montant 4a4 receives the influence of first spring 4a3 elasticity to make montant 4a4 drive the spacing ball 4a2 of both sides and closely laminate with the recess of apron 2 and valve body 1, thereby realize fixing gate valve body 1 and valve gap 2, valve gap and the valve body that have solved current spring 4a3 elasticity realize fixed connection through the bolt, because the bolt contacts with external humid air for a long time, cause inside to rust ageing easily, lead to the user to dismantle comparatively hard problem.

Example 2:

referring to fig. 3, the present invention provides a technical solution: the utility model provides an improved generation gate valve, wherein fixing device 4 can also include second spring 4b1 and inserted bar 4b2, the both ends of second spring 4b1 respectively with inserted bar 4b2 and valve gap 2 fixed linking to each other, the outer wall outside of a plurality of inserted bars 4b2 slides with the through-hole of valve body 1 and links to each other, the outer wall inboard of inserted bar 4b2 pegs graft with sleeve 4a5 and montant 4a4 mutually respectively, the elasticity coefficient of second spring 4b1 can be selected according to the in-service use condition.

The working principle is as follows:

this improved generation gate valve is when dismantling and installing sleeve 4a5, the user outwards stimulates inserted bar 4b2, make inserted bar 4b2 and sleeve 4a5 and montant 4a4 relieve the joint, thereby take out sleeve 4a5, resume the joint with inserted bar 4b2 and sleeve 4a5 and montant 4a4 during the installation, inserted bar 4b2 receives the influence of second spring 4b1 elasticity, make inserted bar 4b2 all the time with sleeve 4a5 and montant 4a4 looks joint, thereby improve the fixed effect to valve gap 2 and gate valve body 1.

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. The utility model provides an improved generation gate valve, includes gate valve body (1) and valve gap (2), the bottom and the gate valve body (1) of valve gap (2) closely laminate its characterized in that: the top both sides of gate valve body (1) are fixed continuous with seal gasket (5), the bottom and the valve plate (6) of gate valve body (1) are laminated mutually, the outer wall top and the inseparable laminating of seal gasket (5) of valve plate (6), the inner wall and valve rod (7) screw thread of valve plate (6) link to each other, the top and the hand wheel (3) of valve rod (7) are fixed continuous, the outer wall of hand wheel (3) passes through sealed bearing and rotates with valve gap (2) and link to each other, the outside of valve gap (2) is equipped with a plurality of fixing device (4).

2. An improved gate valve as defined in claim 1 wherein: fixing device (4) include stopper (4 a 1), and are a plurality of the bottom of stopper (4 a 1) all laminates with valve gap (2), the bottom and sleeve (4 a 5) of stopper (4 a 1) are fixed links to each other, the inside and a plurality of spacing ball (4 a 2) looks joint of sleeve (4 a 5), the inner of spacing ball (4 a 2) all closely laminates with montant (4 a 4), the middle part and the sleeve (4 a 5) of montant (4 a 4) slide and link to each other, the top and the stopper (4 a 1) of montant (4 a 4) slide and link to each other, the bottom of montant (4 a 4) is fixed with the top of first spring (4 a 3) and is continuous, the bottom and the sleeve (4 a 5) of first spring (4 a 3) are fixed and link to each other.

3. An improved gate valve as defined in claim 2, wherein: the outer side of the limiting ball (4 a 2) at the top is tightly attached to the groove of the valve cover (2).

4. An improved gate valve as defined in claim 2, wherein: the outer side of the limiting ball (4 a 2) at the bottom is tightly attached to the groove of the valve cover (2).

5. An improved gate valve as defined in claim 2 wherein: the two sides of the outer wall of the sleeve (4 a 5) are respectively attached to the round holes of the valve body (1) and the valve cover (2).