CN220102083U

CN220102083U - Self-lubricating labor-saving butterfly valve

Info

Publication number: CN220102083U
Application number: CN202321024143.7U
Authority: CN
Inventors: 余显丰; 谷世泽; 徐达; 陈启兴
Original assignee: Zhejiang Langge Valve Technology Co ltd
Current assignee: Zhejiang Langge Valve Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-11-28
Anticipated expiration: 2033-04-27

Abstract

The utility model discloses a self-lubricating labor-saving butterfly valve, which comprises a valve body, a valve plate and a valve rod, wherein the valve plate is positioned in the valve body and is fixedly connected with the valve rod, a fixed seat is arranged on the valve body, a mounting cavity is arranged in the fixed seat, a worm wheel and a worm are arranged in the mounting cavity, the worm wheel is fixed on the valve rod, the worm is in rotary connection with the fixed seat and is in meshed transmission with the worm, one end of the worm extends to the outer side of the fixed seat and is provided with a hand wheel, and the top of the fixed seat is provided with an oil storage tank.

Description

Self-lubricating labor-saving butterfly valve

Technical Field

The utility model discloses a self-lubricating labor-saving butterfly valve, and belongs to the technical field of valves.

Background

The butterfly valve has simple structure, small volume and light weight and is composed of only a few parts. And the valve can be opened and closed quickly by rotating by 90 degrees, is simple to operate, and has good fluid control characteristic. The butterfly plate of butterfly valve is installed in the diameter direction of pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle is 0-90 degrees, and when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state.

The switching structure of butterfly valve has a great variety, and laborsaving purpose when reaching manual switching, most can adopt gear drive structure, but gear drive needs the periodic lubrication oil that adds, and valve operating time is long otherwise, and gear drive's resistance will greatly increased, leads to valve switching more laborious, and current lubrication oil that adds is manual basically all, need dismantle spare part, and the operation is inconvenient.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a self-lubricating labor-saving butterfly valve.

The self-lubricating labor-saving butterfly valve comprises a valve body, a valve plate and a valve rod, wherein the valve plate is positioned in the valve body and is fixedly connected with the valve rod, a fixed seat is arranged on the valve body, an installation cavity is arranged in the fixed seat, a worm wheel and a worm are arranged in the installation cavity, the worm wheel is fixed on the valve rod, the worm is rotationally connected with the fixed seat and is meshed with the worm for transmission, one end of the worm extends to the outer side of the fixed seat and is provided with a hand wheel, the top of the fixed seat is provided with an oil storage tank, an oil guide hole is formed in the meshing position of the fixed seat corresponding to the worm wheel and the worm, a movable plug is arranged in the oil guide hole, and a driving part for driving the movable plug to vertically move is arranged between the fixed seat and the worm wheel.

Preferably, the movable plug comprises a sealing boss and a liquid dropping head, the sealing boss is of a stepped shaft structure, one end with a small diameter is located in the oil guide hole and is in clearance fit with the oil guide hole, and the liquid dropping head is fixed at the lower end of the sealing boss and is of a cone structure.

Preferably, the driving piece includes connecting rod, arc boss, dead lever and spring, the arc boss is provided with four to the symmetric distribution is on the top surface of worm wheel, the connecting rod slides perpendicularly and sets up on the fixing base, the both ends and the connecting rod of dead lever are connected with sealed boss, be provided with the top cap that is used for covering the oil storage tank on the fixing base, the both ends of spring are contradicted with top cap and dead lever respectively, the lower extreme of connecting rod is located arc boss along with worm wheel pivoted circumference, the both ends of arc boss have the direction inclined plane.

Preferably, the lower extreme of connecting rod is provided with the fixed block, be provided with the gyro wheel on the fixed block.

Preferably, one end of the connecting rod penetrates through the fixing rod and extends to the inner side of the spring, a convex column for positioning the spring is arranged on the top cover, and an oil filling nozzle is further arranged in the middle of the top cover.

Preferably, the connecting rod is provided with a lug, the fixing seat is provided with an annular groove corresponding to the mounting positions of the sealing boss and the connecting rod, and a sealing ring is arranged in the annular groove.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up oil storage tank, activity stopper and driving piece, activity stopper and connecting rod are when butterfly valve is closed or is opened, apply elasticity to both and seal the oil guide hole by the spring to avoid the waste of lubricating oil, and at butterfly valve switching's in-process, rely on the rotation of worm wheel to drive arc boss upwards promote the connecting rod, make activity stopper no longer seal the oil guide hole, lubricating oil can flow to the water dropper along sealed boss, and can drip in the meshing department of worm wheel and worm after gathering to be water droplet form, in order to realize the self-lubricating to both, the structure principle is simple, the practicality is strong.

Drawings

FIG. 1 is a schematic diagram of a self-lubricating labor-saving butterfly valve;

FIG. 2 is a schematic view of the structure of the worm wheel, worm, movable plug and driving member of the present utility model;

FIG. 3 is an exploded view of the movable plug of the present utility model;

FIG. 4 is a top cover of the movable plug of the present utility model;

reference numerals: 1. a hand wheel; 2. a valve body; 3. a valve plate; 4. a fixing seat; 5. an oil filling nozzle; 6. a top cover; 7. a driving member; 8. an oil storage tank; 9. arc-shaped bosses; 10. a worm wheel; 11. a valve stem; 12. a guide slope; 13. a worm; 14. an oil guide hole; 15. a fixed rod; 16. sealing the boss; 17. a drip head; 18. a roller; 19. a fixed block; 20. a seal ring; 21. a lug; 22. a connecting rod; 23. a spring; 24. a convex column; 25. a movable plug.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-4, a self-lubricating labor-saving butterfly valve comprises a valve body 2, a valve plate 3 and a valve rod 11, wherein the valve plate 3 is positioned in the valve body 2 and is fixedly connected with the valve rod 11, a fixed seat 4 is arranged on the valve body 2, an installation cavity is arranged in the fixed seat 4, a worm wheel 10 and a worm 13 are arranged in the installation cavity, the worm wheel 10 is fixed on the valve rod 11, the worm 13 is rotationally connected with the fixed seat 4 and is meshed with the worm 13 for transmission, one end of the worm 13 extends to the outer side of the fixed seat 4 and is provided with a hand wheel 1, the top of the fixed seat 4 is provided with an oil storage tank 8, an oil guide hole 14 is arranged at the meshing position of the fixed seat 4 corresponding to the worm wheel 10 and the worm 13, a movable plug 25 is arranged in the oil guide hole 14, a driving piece 7 for driving the movable plug 25 to vertically move is arranged between the fixed seat 4 and the worm wheel 10, in this embodiment, the fixed seat 4 is composed of a lower seat body and an upper seat body, the installation cavity is positioned in the lower seat body, and is not specifically described for simplification, and is unified with the fixed seat 4.

The movable plug 25 comprises a sealing boss 16 and a liquid dropping head 17, the sealing boss 16 is of a stepped shaft structure, one end with small diameter is located in the oil guide hole 14 and is in clearance fit with the oil guide hole 14, the liquid dropping head 17 is fixed at the lower end of the sealing boss 16, the liquid dropping head 17 is of a cone structure, when lubricating oil flows to the liquid dropping head 17 along the surface of the sealing boss 16, the lubricating oil can be converged to form water drops, and drops at the meshing position of the worm wheel 10 and the worm 13, thereby lubricating the worm wheel 10 and the worm 13, the driving piece 7 comprises a connecting rod 22, an arc boss 9, fixing rods 15 and springs 23, the arc boss 9 is provided with four, and is symmetrically distributed on the top surface of the worm wheel 10, the connecting rod 22 is vertically arranged on the fixed seat 4, two ends of the fixing rods 15 are connected with the connecting rod 22 and the sealing boss 16, the fixed seat 4 is provided with a top cover 6 for covering the oil storage tank 8, two ends of the springs 23 are respectively in conflict with the top cover 6 and the fixing rods 15, the lower ends of the connecting rod 22 are located on the circumference of the arc boss 9 rotating along with the arc boss 10, the two ends of the arc boss 9 are provided with guide inclined surfaces 12, when the worm wheel 10 drives the worm wheel 10 to rotate, the worm wheel 9 drives the worm wheel 9 to rotate down, the worm wheel 10 to rotate, the two ends of the worm wheel 22 and the worm wheel 14 are driven by the worm wheel 22 to rotate, the sealing boss 22 can not rotate along with the sealing boss 14, and the sealing boss 14 can be compressed to move along with the connecting rod 14, and the sealing boss is driven by the sealing boss 14, and can be driven by the sealing boss and can not move up to be in the upper end with the sealing boss 16, and can be in contact with the sealing boss and can be driven by the sealing boss and compressed by the sealing boss and can move along with the sealing boss 16.

The lower extreme of connecting rod 22 is provided with fixed block 19, be provided with gyro wheel 18 on the fixed block 19, when gyro wheel 18 contradicts with terminal surface or arc boss 9 of worm wheel 10, can reduce relative sliding's wearing and tearing, the one end of connecting rod 22 passes dead lever 15 and extends to the inboard of spring 23, be provided with the projection 24 of location spring 23 on the top cap 6, projection 24 and connecting rod 22 can play the effect of location to spring 23, avoid it to take place the skew when compression set, the middle part of top cap 6 still is provided with the grease nipple 5, after the lubricating oil in the oil storage tank 8 finishes, can add new lubricating oil in to the oil storage tank 8 through the grease nipple 5, be provided with lug 21 on the connecting rod 22, the fixing base 4 has the ring channel corresponding to seal boss 16 and connecting rod 22's mounted position, be provided with sealing washer 20 in the ring channel, the effort that spring 23 applyed to sealing boss 16 and lug 21 can make sealing washer 20 produce the deformation for lubricating oil is sealed in the oil storage tank 8 when opening or closing and can not appear the seepage.

Working principle: when the butterfly valve is in an opening and closing state, the roller 18 at one end of the connecting rod 22 is propped against the end face of the worm wheel 10, the lug 21 and the sealing boss 16 press the sealing ring 20 under the action of the spring 23, so that lubricating oil cannot flow out of the oil storage tank 8, waste can be avoided, in the process of opening or closing the butterfly valve, the worm 13 is rotated by rotating the hand wheel 1, thereby driving the worm wheel 10 to rotate, at the moment, the arc-shaped boss 9 synchronously rotates along with the worm wheel 10, when the guide inclined surface 12 passes through the roller 18, the roller 18 gradually lifts up and pushes the connecting rod 22 to compress the spring 23, the movable plug 25 synchronously moves upwards under the driving of the fixed rod 15, and lubricating oil can flow through a gap between the oil guide hole 14 and the sealing boss 16 and fall to the meshing position of the worm wheel 10 and the worm 13 along the surface of the drip emitter 17, so that the waste is avoided, the resistance in the transmission is effectively reduced, and the butterfly valve is smoother in the opening and closing process.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a self-lubricating laborsaving butterfly valve, includes valve body (2), valve plate (3) and valve rod (11), its characterized in that, valve plate (3) are located valve body (2) to with valve rod (11) fixed connection, be provided with fixing base (4) on valve body (2), be provided with the installation cavity in fixing base (4), be provided with worm wheel (10) and worm (13) in the installation cavity, worm wheel (10) are fixed on valve rod (11), worm (13) are connected with fixing base (4) rotation to with worm (13) meshing transmission, the one end of worm (13) extends to the outside of fixing base (4) and is provided with hand wheel (1), the top of fixing base (4) is provided with oil storage tank (8), and the junction that fixing base (4) correspond worm wheel (10) and worm (13) is provided with oil guide hole (14), be provided with movable stopper (25) in the oil guide hole (14), be provided with between fixing base (4) and (10) and worm wheel (25) and drive piece (7) that moves perpendicularly.

2. The self-lubricating labor-saving butterfly valve according to claim 1, wherein the movable plug (25) comprises a sealing boss (16) and a liquid dropping head (17), the sealing boss (16) is of a stepped shaft structure, one end with a small diameter is located in the oil guide hole (14) and is in clearance fit with the oil guide hole (14), the liquid dropping head (17) is fixed at the lower end of the sealing boss (16), and the liquid dropping head (17) is of a cone structure.

3. The self-lubricating labor-saving butterfly valve according to claim 2, wherein the driving piece (7) comprises a connecting rod (22), arc-shaped bosses (9), fixing rods (15) and springs (23), the arc-shaped bosses (9) are arranged in four and symmetrically distributed on the top surface of the worm wheel (10), the connecting rod (22) is vertically and slidably arranged on the fixing seat (4), two ends of the fixing rod (15) are connected with the connecting rod (22) and the sealing boss (16), a top cover (6) for covering the oil storage tank (8) is arranged on the fixing seat (4), two ends of the springs (23) are respectively abutted against the top cover (6) and the fixing rods (15), the lower ends of the connecting rod (22) are located on the circumference of the arc-shaped bosses (9) rotating along with the worm wheel (10), and two ends of the arc-shaped bosses (9) are provided with guide inclined planes (12).

4. A self-lubricating labor-saving butterfly valve according to claim 3, characterized in that the lower end of the connecting rod (22) is provided with a fixed block (19), and the fixed block (19) is provided with a roller (18).

5. A self-lubricating labor-saving butterfly valve according to claim 3, characterized in that one end of the connecting rod (22) passes through the fixing rod (15) and extends to the inner side of the spring (23), a convex column (24) for positioning the spring (23) is arranged on the top cover (6), and an oil filling nozzle (5) is also arranged in the middle of the top cover (6).

6. A self-lubricating labor-saving butterfly valve according to claim 3, characterized in that the connecting rod (22) is provided with a lug (21), the mounting position of the fixing seat (4) corresponding to the sealing boss (16) and the connecting rod (22) is provided with an annular groove, and a sealing ring (20) is arranged in the annular groove.