CN215635298U

CN215635298U - Buffer type straight stroke pneumatic valve

Info

Publication number: CN215635298U
Application number: CN202122289825.8U
Authority: CN
Inventors: 池攀攀; 杨丰盛; 叶国步
Original assignee: Odron Control Valve Co ltd
Current assignee: Odron Control Valve Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-01-25
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a buffer type straight stroke pneumatic valve which comprises an actuator part, a stroke pipeline and a connecting pipe fitting, wherein end covers are respectively arranged at two sides of the actuator part, a horizontal U-shaped supporting plate is connected between the connecting pipe fitting and the actuator part, the top surface of the stroke pipeline is arranged at the bottom surface of the actuator part, the connecting pipe fitting is connected to the bottom surface of the stroke pipeline, stand columns are respectively arranged at the peripheral sides of the stroke pipeline and are used for installing and fixing the stroke pipeline, a lifting disc is arranged in a stroke inner chamber of the stroke pipeline, the bottom surface of the lifting disc is connected with a stroke rod, the bottom end of the stroke rod vertically penetrates to the outer side below the stroke inner chamber of the stroke pipeline, and the top end of the stroke rod is connected with the lifting disc through a limiting assembly. This buffering type straight stroke pneumatic valve relies on the reaction force of buffering subassembly, reduces the slew velocity of lifter plate, makes wearing and tearing less to improve life.

Description

Buffer type straight stroke pneumatic valve

Technical Field

The utility model belongs to the technical field of pneumatic valves, and particularly relates to a buffer type straight-stroke pneumatic valve.

Background

The pneumatic valve is a valve driven by compressed air. The valve positioner is a right-angle rotary structure, is matched with a valve positioner for use, and can realize proportional adjustment; the V-shaped valve core is most suitable for various adjusting occasions, and has the advantages of large rated flow coefficient, large adjustable ratio, good sealing effect, sensitive adjusting performance, small volume and vertical and horizontal installation. It is suitable for controlling gas, steam, liquid and other media.

The pneumatic piston actuating mechanism adopts compressed air as a power source, and the crank arm is driven to rotate for 90 degrees through the movement of the piston, so that the valve is automatically opened and closed. The components of it are: adjusting bolt, actuating mechanism box, crank arm, cylinder block, cylinder shaft, piston, connecting rod, cardan shaft. In the existing cylinder, when the gas pushes the piston to descend, the valve plate and the valve seat can be quickly closed, the problems of serious abrasion and high noise easily occur in the process, and the service life of the cylinder is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a buffer type straight stroke pneumatic valve to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a buffer type straight stroke pneumatic valve comprises an actuator component, a stroke pipeline and a connecting pipe fitting,

the utility model discloses a stroke pipeline, including stroke pipeline, stroke pipe, connecting pipe fitting, spacing subassembly, buffer assembly and lifter plate, the bottom surface at the executor part is installed to the top surface of stroke pipeline, and connects the bottom surface of pipe fitting connection at the stroke pipeline, be equipped with the lifter plate in the chamber in the stroke of stroke pipeline, the bottom surface of lifter plate is connected with the stroke pole, stroke pole bottom runs through to the chamber below outside in the stroke of stroke pipeline perpendicularly, the top of stroke pole is passed through spacing subassembly and is connected with the lifter plate, is equipped with buffer assembly at the diapire of chamber in the stroke, buffer assembly and lifter plate developments butt.

Preferably, the buffer assembly comprises two first buffer springs and two second buffer springs which are symmetrically arranged on the bottom wall of the stroke inner chamber;

the height of the first buffer spring is greater than that of the second buffer spring.

Preferably, a lifting positioning rod piece is arranged in the two first buffer springs, and the top end of the lifting positioning rod piece is in dynamic contact with the bottom surface of the lifting disc;

the bottom surface symmetry of lifting disk is equipped with two location inserted bars, two the location inserted bar is pegged graft with two second buffer spring cooperation respectively.

Preferably, the limiting assembly comprises four L lower pressing rods and four lower pressing sheets which are arranged in a reverse direction, one ends of the four L lower pressing rods are welded together, and the other ends of the four L lower pressing rods are welded with the lower pressing sheets;

the lower pressing pieces are abutted against the top surface of the lifting disc, and the middle positions of the four L lower pressing rods are connected with the top surface of the stroke rod through bolts.

Preferably, the constant head tank has all vertically been seted up on the both sides wall of cavity in the stroke, the week side outer wall symmetric welding of lifter plate has the locating piece, locating piece and constant head tank adaptation installation.

Preferably, the lifting positioning rod piece comprises a fixed sleeve and a T-shaped telescopic rod, the fixed sleeve is mounted on the bottom wall of the stroke inner chamber, and the T-shaped telescopic rod is inserted into the fixed sleeve.

Preferably, the end of the T-shaped telescopic rod, which is located in the fixing sleeve, is welded with a limiting block, and the first buffer spring is sleeved outside the fixing sleeve and the T-shaped telescopic rod.

The utility model has the technical effects and advantages that: according to the buffer type straight stroke pneumatic valve, the stroke rod is pressed by air inlet in the stroke inner cavity, so that the lifting disc descends in the stroke inner cavity, the buffer assembly buffers the lifting disc in the stroke inner cavity, the descending speed of the lifting disc is reduced by means of the reaction force of the buffer assembly, the abrasion is small, the noise is reduced, and the service life is prolonged;

when the lifting disc descends and pushes down the first buffer spring, the T-shaped telescopic rod drives the limiting block to ascend and descend in the fixed sleeve, and meanwhile the T-shaped telescopic rod can be lifted and jacked up through the first buffer spring, so that the first buffer spring is convenient to locate and stretch, and the phenomenon that the lifting disc is pushed down to damage the slope is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the travel tube of the present invention;

FIG. 3 is a schematic structural view of a stop assembly of the present invention;

fig. 4 is a cross-sectional view of the fixing sleeve of the present invention.

In the figure: 1. an actuator component; 2. a travel conduit; 3. connecting pipe fittings; 4. an end cap; 5. a U-shaped support plate; 6. a lifting plate; 7. a trip lever; 8. a limiting component; 9. a column; 10. a buffer assembly; 11. a first buffer spring; 12. a second buffer spring; 13. lifting and positioning the rod piece; 14. positioning a groove; 15. positioning blocks; 16. positioning the inserted rod; 17. l lower compression bar; 18. pressing the mixture downwards; 19. fixing the sleeve; 20. a T-shaped telescopic rod; 21. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to the attached

drawings

1 and 2, the buffer type straight stroke pneumatic valve comprises an actuator part 1, a stroke pipeline 2 and a connecting pipe fitting 3, wherein end covers 4 are respectively arranged at two sides of the actuator part 1, a horizontal U-shaped support plate is connected between the connecting pipe fitting 3 and the actuator part 1, the top surface of the stroke pipeline 2 is arranged at the bottom surface of the actuator part 1, the connecting pipe fitting 3 is connected at the bottom surface of the stroke pipeline 2, stand columns 9 are respectively arranged at the peripheral sides of the stroke pipeline 2, the stroke pipeline 2 is fixedly arranged by the stand columns 9, a lifting disc 6 is arranged in a stroke inner chamber of the stroke pipeline 2, the bottom surface of the lifting disc 6 is connected with a stroke rod 7, the bottom end of the stroke rod 7 vertically penetrates to the outer side below the stroke inner chamber of the stroke pipeline 2, the top end of the stroke rod 7 is connected with the lifting disc 6 through a limiting assembly 8, and the bottom wall of the stroke inner chamber is provided with a buffer assembly 10, the buffer component 10 is in dynamic butt joint with the lifting disc 6, when the stroke rod 7 drives the lifting disc 6 to descend, the lifting disc 6 is in elastic contact with the buffer component 10, and when the stroke rod 7 drives the lifting disc 6 to ascend, the lifting disc 6 is not in contact with the buffer component 10;

the buffer assembly 10 comprises two first buffer springs 11 and two second buffer springs 12 which are symmetrically arranged on the bottom wall of the stroke inner chamber, the height of the first buffer spring 11 is greater than that of the second buffer spring 12, the lifting disc 6 is elastically lifted and buffered by the first buffer spring 11 and the second buffer spring 12 to form effective buffering force, a lifting positioning rod 13 is arranged in the two first buffer springs 11, the top end of the lifting positioning rod 13 is in dynamic contact with the bottom surface of the lifting disc 6, the lifting positioning rod 13 moves along with the expansion and lifting of the first buffer spring 11 in the first buffer spring 11 to position, compress and extend the first buffer spring 11, two positioning insertion rods 16 are symmetrically arranged on the bottom surface of the lifting disc 6, the two positioning insertion rods 16 are respectively matched and inserted with the two second buffer springs 12, and the positioning insertion rods 16 are just inserted in the second buffer springs 12, the second buffer spring 12 is positioned.

Referring to fig. 2 and fig. 3, the limiting assembly 8 includes four L lower pressing rods 17 and four lower pressing pieces 18 which are arranged in opposite directions, one ends of the four L lower pressing rods 17 are welded together, the other ends of the four L lower pressing rods 17 are welded to the lower pressing pieces 18, the lower pressing pieces 18 abut against the top surface of the lifting disc 6, the middle positions of the four L lower pressing rods 17 are connected to the top surface of the stroke rod 7 through bolts, one ends of the four L lower pressing rods 17 welded together are provided with discs, threaded holes are formed in the discs, the bolts penetrate through the threaded holes to be connected with the stroke rod 7, and the other ends of the four L lower pressing rods 17 drive the lower pressing pieces 18 to abut against the lifting disc 6.

Referring to fig. 2, positioning grooves 14 are longitudinally formed in both side walls of the inner chamber of the stroke, positioning blocks 15 are symmetrically welded to the outer walls of the periphery of the lifting disc 6, the positioning blocks 15 are installed in a matched manner with the positioning grooves 14, and when the lifting disc 6 is lifted in the inner chamber of the stroke, the lifting disc 6 drives the positioning blocks 15 to lift and move in the positioning grooves 14.

Referring to fig. 2 and 4, the lifting positioning rod 13 includes a fixed sleeve 19 and a T-shaped telescopic rod 20, the fixed sleeve 19 is installed on the bottom wall of the stroke inner chamber, the T-shaped telescopic rod 20 is inserted into the fixed sleeve 19, a limit block 21 is welded at one end of the T-shaped telescopic rod 20 located in the fixed sleeve 19, the first buffer spring 11 is sleeved outside the fixed sleeve 19 and the T-shaped telescopic rod 20, and when the lifting disc 6 descends, the lifting disc 6 presses the T-shaped telescopic rod 20 to move telescopically in the fixed sleeve 19.

According to the working principle, firstly, air enters the stroke pipeline 2, and enters the stroke inner chamber, so that the stroke rod 7 drives the lifting disc 6 to descend in the stroke inner chamber, and meanwhile, the positioning block 15 of the lifting disc 6 moves up and down in the positioning groove 14;

secondly, when the lifting disc 6 is pressed down to contact the T-shaped telescopic rod 20, the T-shaped telescopic rod 20 is pressed down to be telescopically moved and positioned in the fixed sleeve 19, meanwhile, the lifting disc 6 is buffered and damped under the reverse acting force of the first buffer spring 11, and when the lifting disc 6 contacts the second buffer spring 12, the positioning inserted rod 16 is just inserted into the second buffer spring 12 to position the second buffer spring 12, the descending speed of the lifting disc 6 is reduced by the reactive force of the buffer component 10, so that the abrasion is small, and the service life is prolonged;

finally, the bolt passes through the threaded hole and is connected with the stroke rod 7, so that the other ends of the four L lower pressing rods 17 drive the lower pressing plates 18 to abut against the lifting disc 6, and the stroke rod 7 or the lifting disc 6 is convenient to mount and dismount.

The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art should be covered within the protection scope of the present invention in the technical scope disclosed by the present invention, according to the technical solution of the present invention and the concept of the present invention, equivalent replacement or change is added.

Claims

1. A buffer type straight stroke pneumatic valve comprises an actuator component (1), a stroke pipeline (2) and a connecting pipe fitting (3),

the method is characterized in that: the bottom surface at executor part (1) is installed to the top surface of stroke pipeline (2), and connects pipe fitting (3) and connect the bottom surface at stroke pipeline (2), be equipped with lifting disk (6) in the stroke inner chamber of stroke pipeline (2), the bottom surface of lifting disk (6) is connected with stroke pole (7), the stroke pole (7) bottom runs through perpendicularly to the stroke inner chamber below outside of stroke pipeline (2), the top of stroke pole (7) is connected with lifting disk (6) through spacing subassembly (8), is equipped with buffer assembly (10) at the diapire of stroke inner chamber, buffer assembly (10) and lifting disk (6) dynamic butt.

2. A jounce damping straight stroke pneumatic valve as set forth in claim 1, wherein: the buffer assembly (10) comprises two first buffer springs (11) and two second buffer springs (12) which are symmetrically arranged on the bottom wall of the stroke inner chamber;

the height of the first buffer spring (11) is greater than that of the second buffer spring (12).

3. A jounce damping straight stroke pneumatic valve as set forth in claim 2 wherein: a lifting positioning rod piece (13) is arranged in the two first buffer springs (11), and the top end of the lifting positioning rod piece (13) is in dynamic contact with the bottom surface of the lifting disc (6);

two positioning insertion rods (16) are symmetrically arranged on the bottom surface of the lifting disc (6), and the two positioning insertion rods (16) are respectively matched and inserted with the two second buffer springs (12).

4. A jounce damping straight stroke pneumatic valve as set forth in claim 1, wherein: the limiting assembly (8) comprises four L lower pressing rods (17) and four lower pressing plates (18) which are arranged in a reverse direction, one ends of the four L lower pressing rods (17) are welded together, and the other ends of the four L lower pressing rods (17) are welded with the lower pressing plates (18);

the lower pressing plate (18) is abutted to the top surface of the lifting disc (6), and the middle positions of the four L lower pressing rods (17) are connected with the top surface of the stroke rod (7) through bolts.

5. A jounce damping straight stroke pneumatic valve as set forth in claim 2 wherein: constant head tank (14) have all vertically been seted up on the both sides wall of stroke inner chamber, the week side outer wall symmetric welding of lifter plate (6) has locating piece (15), locating piece (15) and constant head tank (14) adaptation installation.

6. A jounce damping straight stroke pneumatic valve as set forth in claim 3 wherein: the lifting positioning rod piece (13) comprises a fixed sleeve (19) and a T-shaped telescopic rod (20), the fixed sleeve (19) is installed on the bottom wall of the stroke inner chamber, and the T-shaped telescopic rod (20) is inserted into the fixed sleeve (19).

7. A dampened straight stroke pneumatic valve as set forth in claim 6, wherein: the T-shaped telescopic rod (20) is located one end of the fixed sleeve (19) and welded with a limiting block (21), and the first buffer spring (11) is sleeved on the outer sides of the fixed sleeve (19) and the T-shaped telescopic rod (20).