CN216743102U

CN216743102U - Double-valve interlocking linkage device

Info

Publication number: CN216743102U
Application number: CN202122004730.7U
Authority: CN
Inventors: 钟元吉; 唐传安; 赵文亮; 王家支; 孙鹏然; 邱万涛; 张磊; 刘钢; 陈翔宇; 王鹏印
Original assignee: Dalian Shipbuilding Industry Co Ltd
Current assignee: Dalian Shipbuilding Industry Co Ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-06-14
Anticipated expiration: 2031-08-23

Abstract

The utility model provides a double valve interlocking aggregate unit, has two valves, is provided with the gear box above two valves, has set gradually first driven gear, intermediate gear, drive gear, second driven gear in the gear box, and the tooth meshing gradually. A gear shaft of the first driven gear is fixedly connected with a valve rod of the first valve, a gear shaft of the second driven gear is fixedly connected with a valve rod of the second valve, a first opening and closing instruction is arranged at the top of the first valve above the gear box, and a second opening and closing instruction is arranged at the top of the second valve; a hand wheel is arranged above the gear box, and a hand wheel shaft arranged below the hand wheel is fixed with the driving gear. The intermediate gears can be any number, when two valves are required to be opened or closed simultaneously, the number of the intermediate gears is even, and when two valves are required to be opened and closed one by one, the number of the intermediate gears is odd. The invention has simple and reliable structure, low cost and strong adaptability, and can realize the synchronous opening or closing of the two valves and the opening and closing of the two valves.

Description

Double-valve interlocking linkage device

Technical Field

The invention relates to the field of ship construction or design, in particular to a double-valve linkage device which can be opened and closed simultaneously or opened and closed one by one and is used for a ship.

Background

In a pipeline system of a ship or other facilities, it is sometimes required that two valves are operated synchronously, that the valves are opened synchronously or that the valves are closed synchronously, and that one valve is closed and the other valve is opened simultaneously so as to ensure the safety of the system and the facilities. In the conventional operation, warning boards are hung on the two valves to remind operating regulations, but the conditions are omitted to cause danger, and the requirements of the specifications are not completely met. Some use automatic control valves, which can achieve precise control but increase the cost, and also cause failure of the automatic control system. The multifunctional valve interlocking linkage device provided by the invention can be produced at the same time.

Disclosure of Invention

In order to solve the above problems, the present invention provides a double-valve interlocking linkage device, which aims to achieve the purpose of realizing the synchronous operation of two valves, synchronous opening and closing, and also or realizing the operation of the opening and closing of the two valves, and adopts the technical scheme that:

a double-valve interlocking linkage device is characterized in that: the valve comprises a first valve and a second valve, wherein the first valve and the second valve are arranged in parallel, a rectangular gear box is arranged above the first valve and the second valve, a first driven gear, an intermediate gear, a driving gear and a second driven gear are sequentially arranged in the gear box, the first driven gear is meshed with the intermediate gear, the intermediate gear is meshed with the driving gear, and the driving gear is meshed with the second driven gear; a gear shaft of the first driven gear is fixedly connected with a valve rod of the first valve, a gear shaft of the second driven gear is fixedly connected with a valve rod of the second valve, a first opening and closing instruction is arranged at the top of the first valve above the gear box, and a second opening and closing instruction is arranged at the top of the second valve; a hand wheel is arranged above the gear box, and a hand wheel shaft arranged below the hand wheel penetrates through the center of the driving gear and is fixed with the driving gear. Drive gear and hand wheel fixed connection through rotating the hand wheel, drive gear and rotate, and drive gear passes through intermediate gear transmission power with first driven gear, and drive gear rotates and drives intermediate gear and second driven gear rotation simultaneously, and intermediate gear drives first driven gear and rotates, and then rotates the hand wheel, the opening or the closure of steerable first valve and second valve.

Above-mentioned double valve interlocking aggregate unit, further, the gear box has the lid, the valve rod of first valve upwards passes in proper order from bottom to top the gear box first driven gear the lid, the valve rod of second valve upwards passes in proper order from bottom to top the gear box second driven gear the lid.

In the above double-valve interlocking linkage device, further, the first opening and closing indicator and the second opening and closing indicator are arranged above the gear box, and the first opening and closing indicator is fixed on the top of the valve rod of the first valve through a nut; the second opening and closing indicator is fixed to the top of the valve rod of the second valve through a nut.

In the above double-valve interlocking linkage device, further, the gear shaft of the intermediate gear sequentially passes through the box cover and the gear box and is fixed in the gear box through the nut and the split pin.

In the above double-valve interlocking linkage device, further, the box cover and the gear box are fixed by bolts.

In the double-valve interlocking linkage device, more than one intermediate gear is further provided. When the first valve and the second valve need to be opened simultaneously, the number of the intermediate gears is a double number, and the specific number can be adjusted according to the actual situation on site; when one valve needs to be opened and the other valve is closed, the number of the intermediate gears is singular, and the specific number of the intermediate gears can be determined according to the actual situation on site.

In the above double valve interlocking linkage device, further, the first valve and the second valve are butterfly valves or ball valves or stop valves. The valve may be any valve that is operable by a hand wheel.

The invention has the beneficial effects that:

1. the invention can realize the synchronous opening or closing of the two valves and the mutual opening and closing of the two valves, namely, one valve is opened while the other valve is synchronously closed;

2. the invention can be applied to various conventional valves, such as butterfly valves, ball valves, stop valves and the like which are opened and closed by using a hand wheel;

3. the invention generally operates two valves at the same time, and can also operate a plurality of valves at the same time;

4. the invention has simple and reliable structure, low cost and strong adaptability, and can be made into a special-shaped structure to adapt to different valve positions.

Drawings

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

FIG. 2 is a cross-sectional view taken from the perspective A-A of FIG. 1;

FIG. 3 is a schematic structural view of the gear box and gears inside the gear box;

wherein: 1-first opening and closing indication, 2-box cover, 3-first driven gear, 4-intermediate gear, 5-first valve, 6-hand wheel, 7-second valve, 8-driving gear, 10-second driven gear, 11-second opening and closing indication, 12-gear box, 18-gear shaft, 19-split pin and 22-hand wheel shaft.

Detailed Description

The invention is further explained with reference to the drawings.

Example 1

A double-valve interlocking linkage device is disclosed, as shown in figures 1 and 2, two valves are provided, namely a first valve 5 and a second valve 7, the first valve and the second valve are arranged in parallel, a gear box with a box cover is arranged above the first valve and the second valve, a first driven gear, an intermediate gear, a driving gear and a second driven gear (shown in figure 3) are sequentially arranged in the gear box, the first driven gear and the second driven gear are meshed with each other in a successive tooth manner, a valve rod of the first valve sequentially penetrates through the gear box, the first driven gear and the box cover, a valve rod of the second valve sequentially penetrates through the gear box, the second driven gear and the box cover, the valve rod of the first valve is fixedly connected with a gear shaft of the first driven gear, and the valve rod of the second valve is fixedly connected with a gear shaft of the second driven gear.

A hand wheel is arranged above the driving gear, a head wheel shaft of the hand wheel is fixedly connected with a gear shaft of the driving gear, and the gear shaft penetrates through the bottom of the gear box and is fixed through a split pin. The gear shaft of the middle gear penetrates through the box cover and the gear box in sequence, the top of the gear shaft of the middle gear is fixed on the box cover through a nut, and the bottom of the gear shaft of the middle gear is fixed through a cotter pin.

And a first opening and closing instruction and a second opening and closing instruction are respectively arranged above the gear box and at the top of the first valve and the second valve and used for displaying the opening state of the valves.

And the hand wheel is rotated to drive the driving gear, the driving gear drives the intermediate gear and the second driven gear to rotate, the intermediate gear drives the first driven gear to rotate, and then the first valve and the second valve are driven to be opened and closed. The effect that two valves cannot be opened and closed simultaneously is achieved, and the valve is used for closing one valve and opening the other valve simultaneously.

Example 2

The double-valve interlocking linkage device as described in embodiment 1, wherein a first driven gear, two intermediate gears, a driving gear and a second driven gear are sequentially arranged in the gear box, and the hand wheel is rotated to control the first valve and the second valve to be opened or closed simultaneously.

In the above embodiment, the number of the intermediate gears can be set according to actual operation conditions, and the larger the number of the intermediate gears is, the longer the length of the gear box is, so that the valve box is suitable for two valves which are relatively far away from each other.

Claims

1. A double-valve interlocking linkage device is characterized in that: the valve is characterized by comprising a first valve (5) and a second valve (7), wherein the first valve and the second valve are arranged in parallel, a rectangular gear box (12) is arranged above the first valve and the second valve, a first driven gear (3), an intermediate gear (4), a driving gear (8) and a second driven gear (10) are sequentially arranged in the gear box, the first driven gear is meshed with the intermediate gear teeth, the intermediate gear is meshed with the driving gear teeth, and the driving gear is meshed with the second driven gear teeth; a gear shaft (18) of the first driven gear is fixedly connected with a valve rod of the first valve, a gear shaft (18) of the second driven gear is fixedly connected with a valve rod of the second valve, a first opening and closing instruction (1) is arranged at the top of the first valve above the gear box, and a second opening and closing instruction (11) is arranged at the top of the second valve; a hand wheel (6) is arranged above the gear box, and a hand wheel shaft (22) arranged below the hand wheel penetrates through the center of the driving gear and is fixed with the driving gear.

2. A dual valve interlock linkage according to claim 1, wherein: the gear box has lid (2), the valve rod of first valve passes from bottom to top in proper order the gear box first driven gear the lid, the valve rod of second valve passes from bottom to top in proper order the gear box second driven gear the lid.

3. A dual valve interlock linkage according to claim 1, wherein: the first opening and closing indication and the second opening and closing indication are arranged above the gear box, and the first opening and closing indication is fixed to the top of a valve rod of the first valve through a nut; the second opening and closing indicator is fixed to the top of the valve rod of the second valve through a nut.

4. A dual valve interlock linkage according to claim 2, wherein: and a gear shaft of the intermediate gear sequentially penetrates through the box cover and the gear box and is fixed in the gear box through a nut and a cotter pin (19).

5. A dual valve interlock linkage according to claim 2, wherein: the box cover and the gear box are fixed through bolts.

6. A dual valve interlock linkage according to claim 1, wherein: the number of the intermediate gears is more than one.

7. A dual valve interlock linkage according to claim 1, wherein: the first valve and the second valve are butterfly valves or ball valves or stop valves.