CN211624241U

CN211624241U - Novel dark pole rubber gate valve

Info

Publication number: CN211624241U
Application number: CN202020032547.0U
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 dark pole rubber gate valve relates to the valve technical field, including the valve body, the shaping has the valve plate to open and close the groove on the valve body, the valve plate is installed to valve plate sliding fit in opening and closing the groove, there is the valve gap of lid above the valve plate opens and closes the groove through screw fixed mounting on the valve body, the upper end shaping of valve plate has the valve rod, the peripheral screw fit of valve rod installs valve-stem nut, valve-stem nut's upper end shaping has the extension column spinner, the upper end of extension column spinner is through valve gap fixed mounting have manual rotatory handle, the intermediate position department shaping of the lower extreme of valve plate has the vertical groove, lower side border department shaping in the valve body has the reference column that clearance fit inserted the vertical groove, the peripheral clearance fit of reference column installs first rubber waterproof gasket, the peripheral fixed mounting of valve plate has waterproof gasket, first rubber waterproof gasket; the flashboard can not be deformed due to overlarge impact force or overlong impact time when directly impacted by water flow, so that the flashboard is more durable.

Description

Novel dark pole rubber gate valve

Technical Field

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

Background

The non-rising stem gate valve has opening and closing part of gate plate with motion direction perpendicular to the fluid direction for regulation and throttling. The non-rising stem gate valve is also called a rotating stem gate valve (also called a non-rising stem wedge gate valve). 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, and 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.

The gate plate of the non-rising stem gate valve can be directly impacted by water flow, if the impact is too large or the impact time is too long, the single surface of the gate plate is pressed too large to cause relative displacement, the gate plate is inclined, and if the inclination amplitude of the gate plate is small, the valve rod nut for controlling the opening and closing of the gate plate is difficult to rotate, and water leakage can be caused insecurely after the gate plate is closed; when flashboard slope range is big, can lead to the valve rod nut that control flashboard opened and close to be died by the card and unable the use, need change whole non-rising stem gate valve, cause the waste.

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 dark pole rubber gate valve, which comprises a valve body, the last shaping of valve body has the valve plate to open and close the groove, the valve plate opens and close inslot sliding fit installs the valve plate, there is the valve gap of lid above the groove is opened and close at the valve plate through screw fixed mounting on the valve body, the upper end shaping of valve plate has the valve rod, valve nut is installed in the peripheral screw fit of valve rod, valve nut's upper end shaping has the extension column spinner, the upper end of extension column spinner leads to valve gap fixed mounting has manual rotatory handle, the intermediate position department shaping of the lower extreme of valve plate has perpendicular groove, downside border department shaping in the valve body inserts the reference column of erecting the groove in clearance fit, first rubber waterproof gasket is installed to the peripheral clearance fit of reference column, the peripheral fixed mounting of valve plate has waterproof gasket, first.

The valve body is provided with a vertical groove, a valve rod nut is arranged on the valve rod nut, a handle is driven to extend through a manual rotating handle, the valve rod nut is driven to rotate through the manual rotating handle, the valve rod nut and the valve rod nut are in mutual spiral fit, the valve rod moves up and down to open or close the valve plate, when the valve plate is in an open state, the upper end of the positioning column is in clearance fit with the lower side of the vertical groove, and water flows through the side edge of; when the valve plate is in a closed state, the vertical groove completely covers the positioning column, the lower end of the valve plate is pressed above the first rubber waterproof gasket, the lower side edge of the first rubber waterproof gasket is tightly matched with the lower side edge of the valve body, and water flow sealing is achieved.

Compared with the prior art, the beneficial effects of the utility model are that: the flashboard can not be deformed due to overlarge impact force or overlong impact time when directly impacted by water flow, so that the flashboard is more durable.

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 plate opening and closing groove; 3. a valve plate; 4. a valve cover; 5. a valve stem; 6. a valve stem nut; 7. extending the spin column; 8. manually rotating the handle; 9. a vertical slot; 10. a positioning column; 11. a first rubber waterproof gasket; 12. a waterproof gasket; 13. a second rubber waterproof gasket; 14. a countersunk groove; 15. a retainer ring; 16. a boss; 17. a third rubber waterproof gasket; 18. a through hole; 19. a waterproof groove; 20. a fourth waterproof rubber gasket; 21. and (4) plate grooves.

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.

Please refer to fig. 1, a novel non-rising stem rubber gate valve, which comprises a valve body 1, a valve plate opening and closing groove 2 is formed on the valve body 1, a valve plate 3 is installed in the valve plate opening and closing groove 2 in a sliding fit manner, a valve cover 4 covering the valve plate opening and closing groove 2 is installed on the valve body 1 through a screw fixed mounting, a valve rod 5 is formed at the upper end of the valve plate 3, a valve rod nut 6 is installed in a peripheral screw fit manner on the valve rod 5, an extension rotary column 7 is formed at the upper end of the valve rod nut 6, a manual rotary handle 8 is fixedly installed at the upper end of the extension rotary column 7 through the valve cover 4, a vertical groove 9 is formed at the middle position of the lower end of the valve plate 3, a positioning column 10 inserted into the vertical groove 9 in a clearance fit manner is formed at the lower side edge in the valve body 1, a first rubber waterproof gasket 11 is installed in a peripheral clearance fit manner on the positioning column.

As a further aspect of the present invention: a second rubber waterproof gasket 13 is fixedly arranged between the valve body 1 and the valve cover 4; the water flow is prevented from overflowing from the gap between the valve body 1 and the valve cover 4.

As a further aspect of the present invention: a countersunk groove 14 is formed at the inner ring of the upper end of the valve cover 4, a retaining ring 15 is arranged above the valve cover 4, a boss 16 which is inserted into the countersunk groove 14 in a clearance fit manner is formed at the lower side of the inner ring of the retaining ring 15, and the retaining ring 15 is fixedly arranged above the valve cover 4 through screws; the water flow is prevented from overflowing from the matching gap between the extended rotary column 7 and the valve cover 4.

As a further aspect of the present invention: a third rubber waterproof gasket 17 is fixedly arranged between the valve cover 4 and the retainer ring 15, and the third rubber waterproof gasket 17 is arranged at the periphery of the boss 16 in a clearance fit manner; the water flow is prevented from overflowing from the matching gap between the extended rotary column 7 and the valve cover 4.

As a further aspect of the present invention: a through hole 18 which is vertically arranged is formed in the valve cover 4, the through hole 18 is used for the extension rotary column 7 to pass through the valve cover 4, a waterproof groove 19 is formed in the inner side of the through hole 18, and a fourth waterproof rubber gasket 20 is arranged in the waterproof groove 19 in an interference fit manner; the water flow is prevented from overflowing from the fitting gap of the extended rotary column 7 and the through hole 18 of the valve cover 4.

As a further aspect of the present invention: a plate groove 21 is formed in the lower side edge of the valve body 1, a positioning column 10 is formed in the middle of the plate groove 21, a first rubber waterproof gasket 11 is placed in the plate groove 21, and the periphery of a waterproof gasket 12 of the valve plate 3 is inserted into the plate groove 21 in a clearance fit manner; so that the closing effect of the closed valve plate 3 is better.

The utility model discloses a theory of operation is: water flow is introduced into the valve body 1, the handle 8 is rotated manually to drive the extension rotary column 7 to enable the valve rod nut 6 to rotate, the valve rod 5 and the valve rod nut 6 are matched in a spiral mode, the valve rod 5 moves up and down to open or close the valve plate 3, when the valve plate 3 is in an opening state, the upper end of the positioning column 10 is in clearance fit with the lower side of the vertical groove 9, and water flow flows through the side edge of the positioning column 10; when the valve plate 3 is in a closed state, the vertical groove 9 completely covers the positioning column 10, the lower end of the valve plate 3 is pressed above the first rubber waterproof gasket 11, the lower part of the first rubber waterproof gasket 11 is tightly matched with the lower side edge in the valve body 1, and water flow is sealed; the flashboard 3 can not be deformed due to overlarge impact force or overlong impact time when directly impacted by water flow, so that the flashboard 3 is more durable.

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 dark pole rubber gate valve, includes the valve body, its characterized in that: the shaping has a valve plate to open and close the groove on the valve body, the valve plate is installed to valve plate open and close inslot sliding fit, there is the valve gap of lid above the valve plate open and close the groove through screw fixed mounting on the valve body, the upper end shaping of valve plate has the valve rod, valve-stem nut is installed to the peripheral screw fit of valve rod, valve-stem nut's upper end shaping has the extension column of revolution, the upper end of extension column of revolution leads to out valve gap fixed mounting and has manual rotatory handle, the shaping of the intermediate position department of the lower extreme of valve plate has perpendicular groove, downside border department shaping in the valve body inserts the reference column of erecting the groove in clearance fit, first rubber waterproof gasket is installed to the peripheral clearance fit of reference column, the peripheral fixed mounting of valve plate has waterproof gasket.

2. The new type dark rod rubber gate valve of claim 1, characterized in that: and a second rubber waterproof gasket is fixedly arranged between the valve body and the valve cover.

3. The new type dark rod rubber gate valve of claim 1, characterized in that: a countersunk groove is formed in the inner ring of the upper end of the valve cover, a check ring is arranged above the valve cover, a boss which is inserted into the countersunk groove in a clearance fit mode is formed on the lower side of the inner ring of the check ring, and the check ring is fixedly installed above the valve cover through screws.

4. The new type non-rising stem rubber gate valve of claim 3, wherein: and a third rubber waterproof gasket is fixedly arranged between the valve cover and the check ring, and is arranged on the periphery of the boss in a clearance fit manner.

5. The new type dark rod rubber gate valve of claim 1, characterized in that: the shaping has the through-hole of vertical setting on the valve gap, and the through-hole supplies the extension column to lead to the valve gap, and the inboard shaping of through-hole has the water-proof tank, and interference fit installs the fourth waterproof rubber packing ring in the water-proof tank.

6. The new type dark rod rubber gate valve of claim 1, characterized in that: the lower side edge in the valve body is formed with a plate groove, the positioning column is formed in the middle of the plate groove, the first rubber waterproof gasket is placed in the plate groove, and the periphery of the waterproof gasket of the valve plate is inserted into the plate groove in a clearance fit mode.