CN211624253U

CN211624253U - Novel groove signal gate valve

Info

Publication number: CN211624253U
Application number: CN202020031821.2U
Authority: CN
Inventors: 郑庭涛
Original assignee: Tianjin Jincheng Development Valve Co ltd
Current assignee: Tianjin Jincheng Development Valve Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-10-02
Anticipated expiration: 2030-01-08

Abstract

The utility model discloses a novel slot signal gate valve, including valve body and valve gap, the valve plate shifting chute has been formed in the valve body, clearance fit installs the valve plate in the valve plate shifting chute, the intermediate position department of valve plate top is connected with the valve rod, the upper end screw fit of valve rod installs the screw thread section of thick bamboo, the valve gap passes through screw fixed mounting in the top of valve body, the intermediate position department of valve gap is formed with the through-hole, rotation fit each other between the periphery of through-hole and screw thread section of thick bamboo, the screw thread section of thick bamboo is rotatory to drive the valve rod up-and-down motion, the valve rod drives the valve plate along the up-and-down motion realization opening and closing in the valve plate shifting chute, the upper end intermediate position department fixed mounting of valve rod has the signal cylinder, the inboard shaping of screw thread section of thick bamboo has the internal thread of vertical through screw thread section of; the opening and closing state of the gate valve can be conveniently and visually seen from the outside through the extension and retraction of the signal cylinder.

Description

Novel groove signal gate valve

Technical Field

The utility model belongs to the technical field of the gate valve technique and specifically relates to a novel slot signal gate valve is related to.

Background

The gate valve is a shutter, the movement direction of the shutter is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. The valve rod nut is arranged on the gate plate, the hand wheel rotates to drive the valve rod to rotate, so that the gate plate is lifted, generally, trapezoidal threads are arranged at the bottom end of the valve rod, rotary motion is changed into linear motion through the threads at the bottom end of the valve and the guide grooves in the valve clack, namely, operation torque is changed into operation thrust, and therefore the valve plate is driven to be opened or closed.

However, most of the gate valves on the market cannot directly see whether the valve plate in the gate valve is opened or not from the outside, and the gate valves can be known only by manually twisting the handles of the gate valves, so that the gate valves are very inconvenient; there is also partial signal gate valve in the market, and this kind of gate valve can follow the outside directly perceived gate valve of seeing and whether open, but this kind of gate valve drives outside slider up-and-down motion through gear drive's mode and realizes conveniently looking over, leads to opening or the power that needs consume when closing the gate valve more than ordinary gate valve, inconvenient use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, provides a technical scheme that can solve above-mentioned problem.

The utility model provides a novel slot signal gate valve, including valve body and valve gap, the shaping has the valve plate shifting chute in the valve body, the valve plate is installed to clearance fit in the valve plate shifting chute, the intermediate position department of valve plate top is connected with the valve rod, the upper end screw fit of valve rod installs a screw thread section of thick bamboo, the valve gap passes through the top of screw fixed mounting at the valve body, the intermediate position department shaping of valve gap has the through-hole, rotation fit each other between the periphery of through-hole and screw thread section of thick bamboo, the rotatory valve rod up-and-down motion that drives of screw thread section of thick bamboo, the valve rod drives the valve plate and realizes opening and closing along the up-and-down motion in the valve plate shifting chute, the upper end intermediate position department fixed mounting of valve rod has the signal cylinder, the inboard shaping of screw thread section of thick bamboo has the vertical internal.

When the gate valve is opened: rotating the threaded cylinder, wherein the internal thread of the threaded cylinder drives the valve rod to move upwards, the valve rod drives the valve plate to move upwards, meanwhile, the valve rod drives the signal cylinder to move upwards, and the upper end of the signal cylinder is led out of the threaded cylinder from the internal thread;

when the gate valve is closed: the internal thread of a rotatory screw thread section of thick bamboo drives the valve rod downstream, and the valve rod drives the valve plate downstream, and the valve rod drives signal cylinder downstream simultaneously, and the internal thread department of the cylindrical upper end withdrawal screw thread section of thick bamboo of signal.

Compared with the prior art, the beneficial effects of the utility model are that: the opening and closing state of the gate valve can be conveniently and visually seen from the outside through the extension and retraction of the signal cylinder, so that the use is convenient; the opening and closing state of the gate valve is displayed in a traditional signal gate valve gear transmission mode, and the force consumed by opening and closing the gate valve is saved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic sectional structure of the present invention.

Shown in the figure: 1. a valve body; 2. a valve cover; 3. a valve plate moving groove; 4. a valve plate; 5. a valve stem; 6. a threaded barrel; 7. a through hole; 8. a signal cylinder; 9. an internal thread; 10. a boss; 11. a first waterproof gasket; 12. a second waterproof gasket; 13. a third waterproof gasket; 14. a groove; 15. and (4) carrying out handle.

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.

Referring to fig. 1, a novel groove signal gate valve comprises a valve body 1 and a valve cover 2, a valve plate moving groove 3 is formed in the valve body 1, a valve plate 4 is installed in the valve plate moving groove 3 in a clearance fit manner, a valve rod 5 is connected to the middle position above the valve plate 4, a threaded cylinder 6 is installed at the upper end of the valve rod 5 in a screw fit manner, the valve cover 2 is fixedly installed above the valve body 1 through screws, a through hole 7 is formed at the middle position of the valve cover 2, the through hole 7 is in mutual rotation fit with the periphery of the threaded cylinder 6, the threaded cylinder 6 rotates to drive the valve rod 5 to move up and down, the valve rod 5 drives the valve plate 4 to move up and down in the valve plate moving groove 3 to open and close, a signal cylinder 8 is fixedly installed at the middle position of the upper end of the valve rod 5, an internal thread 9 vertically penetrating through the threaded cylinder 6 is formed, the signal cylinder 8 is arranged inside the internal thread 9 of the thread cylinder 6 in a clearance sliding fit manner, and the signal cylinder 8 is led out of the thread cylinder 6; the principle is as follows: the opening and closing state of the gate valve is visually displayed by adding the signal cylinder 8, and the valve rod 5 drives the signal cylinder 8 to extend out of or retract into the internal thread 9 of the threaded cylinder 6 while driving the valve plate 4 to move up and down.

As a further aspect of the present invention: a boss 10 is formed at the periphery of the lower end of the threaded cylinder 6, a first waterproof gasket 11 is fixedly mounted above the valve plate 4, the first waterproof gasket 11 is arranged on the outer side of the valve rod 5, and the valve rod 5 drives the valve plate 4 to move up and down so that the first waterproof gasket 11 is tightly pressed or loosened between the boss 10 and the valve plate 4; after the gate valve is opened, water flow cannot overflow at the matching clearance between the valve rod 5 and the internal thread 9.

As a further aspect of the present invention: a second waterproof gasket 12 is fixedly arranged between the valve body 1 and the valve cover 2; so that the water flow does not overflow from the fitting gap between the valve body 1 and the bonnet 2.

As a further aspect of the present invention: a third waterproof gasket 13 is tightly fitted between the threaded cylinder 6 and the through hole 7, one or more than one third waterproof gasket 13 is arranged at intervals up and down, and a groove 14 for the third waterproof gasket 13 to be placed in a clearance fit manner is formed in the through hole 7; the overflow amount of water flow from the matching clearance between the through hole 7 and the periphery of the threaded cylinder 6 is effectively reduced.

As a further aspect of the present invention: a handle 15 is fixedly arranged at the periphery of the upper end of the threaded cylinder 6; the threaded cylinder 6 is convenient to rotate.

The utility model discloses a theory of operation is: when the gate valve is opened: the threaded cylinder 6 is rotated, the internal thread 9 of the threaded cylinder 6 drives the valve rod 5 to move upwards, the valve rod 5 drives the valve plate 4 to move upwards, the gate valve is opened, meanwhile, the valve rod 5 drives the signal cylinder 8 to move upwards, and the upper end of the signal cylinder 8 passes through the threaded cylinder 6 from the internal thread 9; when the gate valve is closed: the threaded cylinder 6 is rotated, the internal thread 9 of the threaded cylinder 6 drives the valve rod 5 to move downwards, the valve rod 5 drives the valve plate 4 to move downwards, the gate valve is closed, meanwhile, the valve rod 5 drives the signal cylinder 8 to move downwards, and the upper end of the signal cylinder 8 retracts into the internal thread 9 of the threaded cylinder 6; the opening and closing state of the valve plate 4 is determined by visually checking the telescopic state of the signal cylinder 8, so that whether the gate valve is opened or not is judged, and the use is convenient.

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 novel slot signal gate valve, includes valve body and valve gap, and the shaping has the valve plate shifting chute in the valve body, and the valve plate is installed to valve plate shifting chute interior clearance fit, and the intermediate position department of valve plate top is connected with valve rod, its characterized in that: the upper end screw fit of valve rod installs a screw thread section of thick bamboo, the valve gap passes through screw fixed mounting in the top of valve body, the intermediate position department shaping of valve gap has the through-hole, rotation cooperation each other between the periphery of through-hole and screw thread section of thick bamboo, the rotatory valve rod up-and-down motion that drives of screw thread section of thick bamboo, the valve rod drives the valve plate and realizes opening and closing along the up-and-down motion in the valve plate shifting chute, the upper end intermediate position department fixed mounting of valve rod has the signal cylinder, the inboard shaping of screw thread section of thick bamboo has the internal thread of vertical through screw thread section of thick bamboo, mutual screw fit between internal thread and the valve rod, signal cylinder.

2. The novel trench signal gate valve of claim 1, wherein: the peripheral department shaping of the lower extreme of screw thread section of thick bamboo has the boss, and the top fixed mounting of valve plate has first waterproof gasket, and first waterproof gasket sets up in the outside of valve rod, and the valve rod drives the valve plate up-and-down motion and makes first waterproof gasket compress tightly or the pine unloads between boss and valve plate.

3. The novel trench signal gate valve of claim 1, wherein: and a second waterproof gasket is fixedly arranged between the valve body and the valve cover.

4. The novel trench signal gate valve of claim 1, wherein: the tight fit is installed the third waterproof gasket between a screw thread section of thick bamboo and the through-hole, and the third water proof gasket separates the one or more that set up about being equipped with, and the shaping has the recess that the clearance fit of corresponding confession third water proof gasket was put into in the through-hole.

5. The novel trench signal gate valve of claim 1, wherein: a handle is fixedly arranged at the periphery of the upper end of the threaded cylinder.