CN221880241U - A butterfly valve that is easy to assemble - Google Patents

Abstract

The utility model discloses a butterfly valve which is easy to assemble and belongs to the field of butterfly valves. It comprises a butterfly plate installed in a valve body and a driving mechanism for driving the butterfly plate to rotate. The driving mechanism comprises a shell, a hand wheel, a worm, a worm gear and a driving rod. The top of the butterfly plate is fixedly connected with a valve stem, the bottom of the shell is fixedly connected with a connecting sleeve, both sides of the connecting sleeve are provided with positioning holes, the top of the valve body is fixedly connected with a fixing seat, the top of the fixing seat is provided with a connecting groove, both sides of the connecting groove are slidably connected with positioning rods, and a spring is sleeved on the positioning rod. Through the arrangement of the connecting sleeve, the positioning hole, the fixing seat, the connecting groove, the positioning rod, the spring and the handle, during assembly, the lower end of the connecting sleeve will be inserted into the connecting groove of the fixing seat, and then the spring will be used to push the positioning rod to be inserted into the positioning hole, so as to position the connecting sleeve, complete quick assembly, save time and labor, and can be quickly disassembled by the handle when disassembly is required.

Description

A butterfly valve that is easy to assemble

Technical Field

The utility model belongs to the technical field of butterfly valves, and in particular relates to a butterfly valve which is easy to assemble.

Background Art

A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for switching control of low-pressure pipeline media. A butterfly valve refers to a valve in which the closing member (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing.

Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. They mainly play the role of cutting off and throttling in pipelines. The butterfly valve opening and closing part is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening, closing or regulating.

In the prior art, a butterfly valve is mainly composed of a valve body, a butterfly plate and a driving mechanism for driving the butterfly plate to rotate. The driving mechanism is generally fixed on the top of the butterfly valve by four bolts, which is time-consuming and labor-intensive during the assembly process, affecting the installation efficiency of the butterfly valve.

Utility Model Content

The purpose of the utility model is to provide a butterfly valve which is easy to assemble, so as to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a butterfly valve that is easy to assemble, comprising a valve body, a butterfly plate installed in the valve body, and a driving mechanism for driving the butterfly plate to rotate, the driving mechanism comprising a shell, a handwheel, a worm, a worm wheel and a driving rod, the handwheel is fixedly installed at one end of the worm, the worm is meshed with the worm wheel, the worm wheel is coaxially fixed with the driving rod, the top of the butterfly plate is fixedly connected to the valve stem, the lower end of the driving rod is fixedly connected to the clamping rod, the upper end of the valve stem is provided with a clamping groove that matches the clamping rod, the bottom of the shell is fixedly connected to a connecting sleeve, both sides of the connecting sleeve are provided with positioning holes, the top of the valve body is fixedly connected to a fixing seat, the top of the fixing seat is provided with a connecting groove, both sides of the connecting groove are slidably connected with positioning rods, and a spring is sleeved on the positioning rod.

As a preferred implementation, a sealing ring is fixedly installed inside the fixing seat, and the valve stem passes through the fixing seat.

As a preferred embodiment, the positioning rod is provided with an oblique angle in the direction toward the opening of the connecting groove.

As a preferred implementation, one end of the positioning rod away from the connecting groove is fixedly connected to a handle.

As a preferred implementation, both sides of the connecting sleeve are fixedly connected to limiting blocks, and both sides of the connecting groove are provided with limiting grooves.

As a preferred embodiment, a cover plate is screwed onto the top of the housing.

Compared with the prior art, the beneficial effects of the utility model are:

The butterfly valve, which is easy to assemble, is provided with a driving mechanism. During assembly, the clamping rod at the lower end of the driving rod is inserted into the clamping groove at the upper end of the valve stem, so that the driving rod and the valve stem are clamped and matched. Thus, the valve stem can be rotated by the driving mechanism, so that the valve stem drives the butterfly plate to rotate, thereby realizing the opening and closing of the butterfly valve.

The butterfly valve which is easy to assemble is provided with a connecting sleeve, a positioning hole, a fixing seat, a connecting groove, a positioning rod, a spring and a handle. During assembly, the lower end of the connecting sleeve is inserted into the connecting groove of the fixing seat, and then the positioning rod is pushed by the spring to be inserted into the positioning hole to position the connecting sleeve, thereby completing quick assembly, saving time and labor, and when disassembly is required, it can be quickly disassembled through the handle.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the disassembled structure of the utility model without showing the housing;

FIG3 is a schematic cross-sectional view of the fixing seat of the utility model;

FIG. 4 is a schematic structural diagram of a connecting sleeve of the present invention.

In the figure: 1. valve body; 2. butterfly plate; 3. housing; 4. hand wheel; 5. worm; 6. worm wheel; 7. driving rod; 8. valve stem; 9. clamping rod; 10. clamping groove; 11. connecting sleeve; 12. positioning hole; 13. fixing seat; 14. connecting groove; 15. positioning rod; 16. spring; 17. sealing ring; 18. handle; 19. limit block; 20. limit groove; 21. cover plate.

DETAILED DESCRIPTION

The present invention will be further described below in conjunction with the embodiments.

The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

Please refer to Figures 1-4. The utility model provides a butterfly valve that is easy to assemble, including a valve body 1, a butterfly plate 2 installed in the valve body 1, and a driving mechanism for driving the butterfly plate 2 to rotate. The driving mechanism includes a housing 3, a handwheel 4, a worm 5, a worm wheel 6 and a driving rod 7. The top of the housing 3 is screwed with a cover plate 21. Through the arrangement of the cover plate 21, it is convenient to inspect and maintain the driving mechanism. The handwheel 4 is fixedly installed at one end of the worm 5, the worm 5 is meshed with the worm wheel 6, and the worm wheel 6 is coaxially fixed with the driving rod 7. A valve stem 8 is fixedly connected to the top of the butterfly plate 2, and a clamping rod 9 is fixedly connected to the lower end of the driving rod 7. A clamping groove 10 adapted to the clamping rod 9 is opened at the upper end of the valve stem 8. Through the arrangement of the driving mechanism, during assembly, the clamping rod 9 at the lower end of the driving rod 7 is inserted into the clamping groove 10 at the upper end of the valve stem 8, so that the driving rod 7 is clamped and matched with the valve stem 8, so that the driving mechanism can be used to rotate the valve stem 8, so that the valve stem 8 drives the butterfly plate 2 to rotate, thereby realizing the opening and closing of the butterfly valve.

The top of the valve body 1 is fixedly connected with a fixing seat 13, a sealing ring 17 is fixedly installed inside the fixing seat 13, and the valve stem 8 passes through the fixing seat 13. The sealing between the valve stem 8 and the fixing seat 13 can be improved by setting the sealing ring 17.

A connecting sleeve 11 is fixedly connected to the bottom of the shell 3, and positioning holes 12 are provided on both sides of the connecting sleeve 11. A connecting groove 14 is provided on the top of the fixing seat 13, and positioning rods 15 are slidably connected to both sides of the connecting groove 14. The positioning rods 15 are provided with an oblique angle in the direction of the opening of the connecting groove 14, and a spring 16 is sleeved on the positioning rod 15. The end of the positioning rod 15 away from the connecting groove 14 is fixedly connected to a handle 18. Through the arrangement of the connecting sleeve 11, the positioning hole 12, the fixing seat 13, the connecting groove 14, the positioning rod 15, the spring 16 and the handle 18, during assembly, the lower end of the connecting sleeve 11 will be inserted into the connecting groove 14 of the fixing seat 13, and then the spring 16 will be used to push the positioning rod 15 to be inserted into the positioning hole 12, so as to position the connecting sleeve 11 and complete quick assembly, saving time and effort. When disassembly is required, it can be quickly disassembled through the handle 18.

Among them, both sides of the connecting sleeve 11 are fixedly connected with limiting blocks 19, and both sides of the connecting groove 14 are provided with limiting grooves 20. Through the cooperation of the limiting blocks 19 and the limiting grooves 20, the connecting sleeve 11 can be limited.

The working principle and use process of the utility model are as follows: first, through the setting of the driving mechanism, during assembly, the clamping rod 9 at the lower end of the driving rod 7 is inserted into the clamping groove 10 at the upper end of the valve stem 8, so that the driving rod 7 and the valve stem 8 are clamped and matched, so that the driving mechanism can be used to rotate the valve stem 8, so that the valve stem 8 drives the butterfly plate 2 to rotate, and the butterfly valve is opened and closed. Through the setting of the connecting sleeve 11, the positioning hole 12, the fixing seat 13, the connecting groove 14, the positioning rod 15, the spring 16 and the handle 18, during assembly, the lower end of the connecting sleeve 11 will be inserted into the connecting groove 14 of the fixing seat 13, and then the spring 16 will be used to push the positioning rod 15 to be inserted into the positioning hole 12, so as to position the connecting sleeve 11, complete the quick assembly, save time and effort, and can be quickly disassembled through the handle 18 when disassembly is required.

Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a butterfly valve convenient to assembly, includes valve body (1), installs butterfly plate (2) in valve body (1) and is used for driving butterfly plate (2) pivoted actuating mechanism, its characterized in that: the driving mechanism comprises a shell (3), a hand wheel (4), a worm (5), a worm wheel (6) and a driving rod (7), wherein the hand wheel (4) is fixedly arranged at one end of the worm (5), the worm (5) is meshed with the worm wheel (6), the worm wheel (6) is coaxially fixed with the driving rod (7), the top of the butterfly plate (2) is fixedly connected with a valve rod (8), the lower end of the driving rod (7) is fixedly connected with a clamping rod (9), the upper end of the valve rod (8) is provided with a clamping groove (10) matched with the clamping rod (9), the bottom of the shell (3) is fixedly connected with a connecting sleeve (11), positioning holes (12) are formed in two sides of the connecting sleeve (11), a fixing seat (13) is fixedly connected to the top of the valve body (1), a connecting groove (14) is formed in the top of the fixing seat (13), two sides of the connecting groove (14) are fixedly connected with a positioning rod (15) in a sliding mode, and a spring (16) is sleeved on the positioning rod (15).

2. A butterfly valve for facilitating assembly as recited in claim 1, wherein: the inside of fixing base (13) fixed mounting has sealing washer (17), valve rod (8) run through fixing base (13).

3. A butterfly valve for facilitating assembly as recited in claim 1, wherein: the orientation pole (15) is equipped with the oblique angle towards the direction of spread groove (14) opening.

4. A butterfly valve for facilitating assembly as recited in claim 1, wherein: one end of the positioning rod (15) far away from the connecting groove (14) is fixedly connected with a handle (18).

5. A butterfly valve for facilitating assembly as recited in claim 1, wherein: limiting blocks (19) are fixedly connected to two sides of the connecting sleeve (11), and limiting grooves (20) are formed in two sides of the connecting groove (14).

6. A butterfly valve for facilitating assembly as recited in claim 1, wherein: a cover plate (21) is arranged on the top screw of the shell (3).