CN219413548U

CN219413548U - Butterfly valve with overload protection

Info

Publication number: CN219413548U
Application number: CN202222880933.7U
Authority: CN
Inventors: 苑景强
Original assignee: Tianjin Xingde Valve Co ltd
Current assignee: Tianjin Xingde Valve Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-07-25
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a butterfly valve with overload protection, which comprises a metal contact, a hard right-angle connecting pipe, wherein an elastic ring is fixedly connected to the inner surface of the hard right-angle connecting pipe, a threaded rod is rotatably connected to the inner surface of the hard right-angle connecting pipe, a rotating wheel is fixedly connected to the left end of the threaded rod, a battery is fixedly connected to the left surface of the rotating wheel, a warning lamp is fixedly connected to the left surface of the battery, a valve core is fixedly connected to the right end of the threaded rod, a lifting rod is slidably connected to the inner surface of the valve core, a lifting plate is fixedly connected to the lower surface of the lifting rod, a blocking block is fixedly connected to the upper surface of the lifting plate, a rust-proof balancing weight is in threaded connection with the upper surface of the blocking block, and a screw is fixedly connected to the upper surface of the rust-proof balancing weight. Above-mentioned structure, through lifter and rust-resistant balancing weight, the realization device has overload protection to and automatic re-setting, and has the instruction function.

Description

Butterfly valve with overload protection

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with overload protection.

Background

The butterfly valve is also called as a flap valve, and is a simple-structure regulating valve, and can be used for the on-off control of low-pressure pipeline media. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and mainly has the functions of cutting off and throttling on a pipeline, when the pressure in the pipeline is far greater than a threshold value, the risk of pipeline breakage can occur, but the threshold value of the automatic opening of the valve at present cannot be adjusted and cannot be automatically reset, and when the threshold value is exceeded, the alarm cannot be automatically given, and the technical scheme provided by the utility model with the application number of CN201420415149.1 is found after the search, and the technical scheme provided by the utility model has the same problems.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art and provide a butterfly valve with overload protection, which realizes overload protection, automatic reset and indication function of a device through a lifting piece and a rust-proof balancing weight.

In order to achieve the above object, the present utility model further provides a butterfly valve with overload protection, comprising:

the device comprises a metal contact, a hard right-angle connecting pipe, wherein an elastic ring is fixedly connected to the inner surface of the hard right-angle connecting pipe, a threaded rod is rotatably connected to the inner surface of the hard right-angle connecting pipe, a rotating wheel is fixedly connected to the left end of the threaded rod, a battery is fixedly connected to the left surface of the rotating wheel, and a warning lamp is fixedly connected to the left surface of the battery;

the right-hand member fixedly connected with case of threaded rod, the internal surface sliding connection of case has the lifter, the lower fixed surface of lifter is connected with the lifter, the last fixed surface of lifter is connected with the block, the upper surface threaded connection of block has the rust-resistant balancing weight, the last fixed surface of rust-resistant balancing weight is connected with the screw rod.

According to the butterfly valve with overload protection, the warning lamp is electrically connected with the battery, and the metal contact is electrically connected with the battery.

According to the butterfly valve with overload protection, a limiting block is fixedly connected to the left surface of the hard right-angle connecting pipe, and the limiting block is in threaded connection with the threaded rod.

According to the butterfly valve with overload protection, the pitch of the threaded rod is smaller than the thickness of the elastic ring, so that the valve core can be kept sealed when moving.

According to the butterfly valve with overload protection, the two ends of the hard right-angle connecting pipe are fixedly connected with the flange, and the outer surface of the valve core is tightly contacted with the elastic ring for ensuring the sealing effect.

According to the butterfly valve with overload protection, the lower surface of the blocking block is fixedly connected with the gasket, and the lower surface of the gasket is in contact with the valve core and is used for avoiding leakage under normal conditions.

According to the butterfly valve with overload protection, the number of the rust-proof balancing weights is multiple and is distributed up and down, and the diameter of the rust-proof balancing weights at the lower side is larger than that of the rust-proof balancing weights at the upper side.

According to the butterfly valve with overload protection, the number of the metal contacts is two, the metal contacts are distributed left and right, and the inner diameter of the metal contacts is the same as the diameter of the lower rust-proof balancing weight.

Additional aspects and advantages of the utility model 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 utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is an internal block diagram of a butterfly valve with overload protection according to the present utility model;

FIG. 2 is a schematic diagram of a valve core structure of a butterfly valve with overload protection according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure shown in FIG. 2A;

FIG. 4 is a schematic view of a portion of a butterfly valve with overload protection according to the present utility model.

Legend description:

1. a rigid right angle connection tube; 2. a flange; 3. a threaded rod; 4. a rotating wheel; 5. a battery; 6. a warning light; 7. a valve core; 8. an elastic ring; 9. a metal contact; 10. lifting pieces; 11. rust-proof balancing weight; 12. a screw; 13. a block; 14. a gasket; 15. lifting rod.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

Referring to fig. 1-4, the butterfly valve with overload protection according to the embodiment of the utility model comprises a metal contact, a hard right-angle connecting pipe 1, a limiting block fixedly connected with the left surface of the hard right-angle connecting pipe 1, a threaded rod 3 connected with the limiting block, an elastic ring 8 fixedly connected with the inner surface of the hard right-angle connecting pipe 1, a threaded rod 3 rotatably connected with the inner surface of the hard right-angle connecting pipe 1 and used for rotating a valve core 7, connecting flanges 2 fixedly connected with the two ends of the hard right-angle connecting pipe 1, the outer surface of the valve core 7 tightly contacted with the elastic ring 8 and used for guaranteeing the sealing effect, a rotating wheel 4 fixedly connected with the left end of the threaded rod 3, a battery 5 fixedly connected with the left surface of the rotating wheel 4 and used for providing electric energy, a warning lamp 6 fixedly connected with the left surface of the battery 5, the warning lamp 6 electrically connected with the battery 5, the metal contact 9 electrically connected with the battery 5, the number of the metal contacts 9 distributed left and right, and left and right, the inner diameters of the metal contacts 9 are identical with the diameter of a lower rust-preventing balancing weight 11.

The right-hand member fixedly connected with case 7 of threaded rod 3, the pitch of threaded rod 3 is less than the thickness of elastic ring 8 for can keep sealed when guaranteeing that case 7 removes, the internal surface sliding connection of case 7 has lifter 15, the lower fixed surface of lifter 15 is connected with lifter 10, be used for providing the power of shifting up, the upper surface fixedly connected with of lifter 10 prevents piece 13, the lower fixed surface of preventing piece 13 is connected with packing ring 14, the lower surface of packing ring 14 contacts with case 7, be used for avoiding the seepage under the normal condition, the upper surface threaded connection of preventing piece 13 has rust-proof balancing weight 11, the quantity of rust-proof balancing weight 11 is a plurality of and distributes from top to bottom, the diameter of downside rust-proof balancing weight 11 is greater than upside rust-proof balancing weight 11, the upper surface fixedly connected with screw rod 12 of rust-proof balancing weight 11, be used for avoiding the drop of rust-proof balancing weight 11.

Working principle: the right end of the hard right-angle connecting pipe 1 is vertically installed, when the valve is opened, the valve core 7 is vertical, when the valve is closed, the valve core 7 is horizontal, a corresponding number of rust-proof balancing weights 11 are installed from the upper side of the hard right-angle connecting pipe 1 according to requirements, when the valve is closed, the pressure on the lower side of a pipeline pushes the lifting plate 10 to lift the lifting plate 13 when the pressure is larger than a pressure threshold value, the lifting plate is prevented from lifting up and contacting with the metal contacts 9, the warning lamp 6 is turned on when the valve is turned on, the valve is indicated to be in an active pressure relief process, and when the pressure is recovered to be normal, the lifting plate 10 falls.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A butterfly valve with overload protection, comprising:

the intelligent connecting device comprises a metal contact (9), a hard right-angle connecting pipe (1), wherein an elastic ring (8) is fixedly connected to the inner surface of the hard right-angle connecting pipe (1), a threaded rod (3) is rotatably connected to the inner surface of the hard right-angle connecting pipe (1), a rotating wheel (4) is fixedly connected to the left end of the threaded rod (3), a battery (5) is fixedly connected to the left surface of the rotating wheel (4), and a warning lamp (6) is fixedly connected to the left surface of the battery (5);

the novel anti-rust valve is characterized in that the right end of the threaded rod (3) is fixedly connected with the valve core (7), the inner surface of the valve core (7) is slidably connected with the lifting rod (15), the lower surface of the lifting rod (15) is fixedly connected with the lifting piece (10), the upper surface of the lifting piece (10) is fixedly connected with the preventing block (13), the upper surface of the preventing block (13) is in threaded connection with the anti-rust balancing weight (11), and the upper surface of the anti-rust balancing weight (11) is fixedly connected with the screw (12).

2. Butterfly valve with overload protection according to claim 1, characterized in that the warning light (6) is electrically connected to the battery (5), and the metal contact (9) is electrically connected to the battery (5).

3. The butterfly valve with overload protection according to claim 1, wherein a limiting block is fixedly connected to the left surface of the hard right-angle connecting pipe (1), and the limiting block is in threaded connection with the threaded rod (3).

4. Butterfly valve with overload protection according to claim 1, characterized in that the pitch of the threaded rod (3) is smaller than the thickness of the elastic ring (8).

5. Butterfly valve with overload protection according to claim 1, characterized in that the two ends of the hard right-angle connecting pipe (1) are both fixed with connecting flanges (2), and the outer surface of the valve core (7) is in close contact with an elastic ring (8).

6. A butterfly valve with overload protection according to claim 1, characterized in that the lower surface of the block (13) is fixedly connected with a gasket (14), the lower surface of the gasket (14) being in contact with the valve core (7).

7. Butterfly valve with overload protection according to claim 1, characterized in that the number of the rust-proof weight blocks (11) is plural and distributed up and down, the diameter of the rust-proof weight block (11) at the lower side is larger than that of the rust-proof weight block (11) at the upper side.

8. Butterfly valve with overload protection according to claim 1, characterized in that the number of metal contacts (9) is two and distributed left and right, the inner diameter of the metal contacts (9) is the same as the diameter of the lower anti-rust weight (11).