CN219809480U

CN219809480U - Pneumatic valve spring device with adjusting elasticity

Info

Publication number: CN219809480U
Application number: CN202321023953.0U
Authority: CN
Inventors: 贾镇; 施泽恩; 贾伟琪; 顾珺; 吴绿凯; 吴元兴
Original assignee: Changzhou Weiqi Spring Technology Co ltd
Current assignee: Changzhou Weiqi Spring Technology Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-10-10
Anticipated expiration: 2033-05-04

Abstract

The utility model discloses a pneumatic valve spring device with adjustable elasticity, which comprises an execution shell and two cylinder covers; the two ends of the execution shell are fixedly connected with the two cylinder covers in a one-to-one correspondence manner, one side of the execution shell is provided with an A pipe mouth and a B pipe mouth, the side surface of the execution shell, which is far away from the A pipe mouth and the B pipe mouth, is connected with a gear column through a bearing, and the side surface of the execution shell is connected with the gear column through a bearing; the execution shell is internally provided with a cavity and a piston, the gear column is positioned at the center of the cavity, and two ends of the gear column penetrate through the side face of the execution shell.

Description

Pneumatic valve spring device with adjusting elasticity

Technical Field

The utility model relates to the technical field of pneumatic valve equipment, in particular to a pneumatic valve spring device with adjustable elasticity.

Background

The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like. For example, oil and gas pipelines require valves to control the opening and closing of the pipeline during transportation. Wherein: the actuating mechanism and the adjusting mechanism of the pneumatic actuator are unified and integral, and the pneumatic actuator automatically completes the opening or closing operation of the butterfly valve on the pipeline.

The actuating mechanism often cannot meet the valve requirement for frequent actions due to the limitations of the structure and the processing conditions, and internal components are easy to damage in the frequent action process.

Disclosure of Invention

The utility model aims to provide a pneumatic valve spring device with adjustable elasticity, so as to solve the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme: a pneumatic valve spring device with adjusting elasticity comprises an execution shell and two cylinder covers; the two ends of the execution shell are fixedly connected with the two cylinder covers in a one-to-one correspondence manner, one side of the execution shell is provided with an A pipe mouth and a B pipe mouth, the side surface of the execution shell, which is far away from the A pipe mouth and the B pipe mouth, is connected with a gear column through a bearing, and the side surface of the execution shell is connected with the gear column through a bearing; the execution shell is internally provided with a cavity and a piston, the gear column is positioned at the center of the cavity, and two ends of the gear column penetrate through the side face of the execution shell; the end face of the cavity is in clearance fit with the piston, and the side face of the piston is in sliding connection with the inner wall of the execution shell; the inside of cylinder cap is provided with multiunit spring assembly, spring assembly includes connecting seat, branch, linear elastic component, the one end and the piston sliding connection of connecting seat, the one end and the connecting seat of branch pass through interference fit and are connected, the side and the connecting seat of branch adopt sliding connection, branch is located the inside of linear elastic component, the one end and the connecting seat fixed connection of linear elastic component. When compressed air enters the cavity from the pipe A of the executing shell, the air pushes the piston to move linearly towards the two ends, the rack on the piston drives the gear on the gear column to rotate 90 degrees anticlockwise, and the valve is opened. At this time, the gas at the two ends of the piston is discharged along with the B pipe mouth of the executing shell, and the piston pushes the connecting seat to move towards the cylinder cover. The connecting seat pushes the supporting rod to move and extrudes the linear elastic piece.

According to the technical scheme, the spring device further comprises a base, one end of the base is fixedly connected with the inner wall of the cylinder cover, one end of the supporting rod, which is far away from the connecting seat, is fixedly connected with the base, and one end of the linear elastic piece, which is far away from the connecting seat, is fixedly connected with the base. The base is connected with the cylinder cover, and the rest part of the spring device is limited through the support rod. The linear elastic piece is extruded by the matching connection seat.

According to the technical scheme, the spring device further comprises a movable seat and an air hose, the inner side of the movable seat is in threaded connection with the side face of the supporting rod, one end of the supporting rod, away from the connecting seat, is fixedly connected with the cylinder cover, one end of the movable seat is hinged to the linear elastic piece, one end of the movable seat, away from the linear elastic piece, is fixedly connected with the air hose, one end of the air hose, away from the movable seat, is fixedly connected with the cylinder cover, an air inlet is formed in the cylinder cover, the air inlet is connected with the pipe nozzle A through a pipeline, one end of the air inlet is communicated with the air hose, and a branching plate is arranged at the pipe nozzle A. When the air inlet speed of the pipe A is increased and the air inlet amount is unchanged, the branching plate is pushed to be opened by air, a large amount of air enters the cavity, a small amount of air reaches the air inlet through the pipeline to enter the air hose, and the air hose is rapidly inflated to push the movable seat to rotationally engage with the threads for movement. The movable seat approaches to the connecting seat, and the linear elastic piece contracts. The deformation of the linear elastic piece is performed in advance, so that the piston displacement is ensured to be shortened, and the elastic force is still unchanged.

According to the technical scheme, spring assembly still includes the fixing base, the one end and the cylinder cap fixed connection of fixing base, the big terminal surface fixed connection of cylinder cap is kept away from to the one end of linear elastic component and fixing base, the holding chamber has been seted up to the one end that the fixing base is close to the cylinder cap, the one end that the execution casing was kept away from to the cylinder cap has control system through the pipe connection, the one end that the holding chamber is close to the cylinder cap passes through pipe connection with control system, the inside branch road that evenly is provided with of fixing base, the cylinder side even fixedly connected with gasbag ring that the cylinder cap was kept away from to the fixing base, the inboard and the branch road link up of gasbag ring, the gasbag ring is located inside the linear elastic component. The control system inflates the air accommodating cavity, and air enters the air bag ring through the branch. The balloon ring is inflated to fill a portion of the gap at one end of the linear elastic member. After the air bag ring, the branch and the air containing cavity are filled with air, a connecting pipeline of the control system and the cylinder cover is closed, so that the air is prevented from flowing back. When the piston presses the linear elastic element through the connecting seat, the working length of the linear elastic element is shortened. Whereby the elastic force is reduced.

According to the technical scheme, the linear elastic piece adopts a spiral spring. The spring has precise regulation performance, does not consume energy, and the spring storing potential energy can restore the original shape and change the potential energy into kinetic energy again. When the pneumatic actuator adopts single action, compressed air does not continuously enter the cavity from the A pipe mouth of the actuating shell, the spiral spring pushes the connecting seat to move, the connecting seat pushes the piston to move linearly towards the middle, the rack on the piston drives the gear on the gear column to rotate 90 degrees clockwise, and the valve is closed.

According to the technical scheme, the linear elastic piece adopts a wave spring. The wave spring is a thin sheet annular elastic metal element formed by a plurality of wave crests and wave troughs. The rigidity range is large, the buffering and vibration absorbing capacity is strong, and the deformation energy of the unit volume material is large. And optimize the space for the spring. The pneumatic actuator adopts double-acting, the connecting seat extrudes the wave spring, and the wave spring contracts to buffer and absorb vibration energy. When compressed air enters the two ends of the execution shell from the B-shaped nozzle of the execution shell, the air pushes the piston to move linearly towards the middle, the rack on the piston drives the gear on the rotating shaft to rotate 90 degrees clockwise, and the valve is closed. And the gas in the middle of the pneumatic actuator is discharged along with the A pipe nozzle.

Compared with the prior art, the utility model has the following beneficial effects: through being provided with fixing base, gasbag ring, outside control system aerifys the appearance air cavity, and gaseous entering gasbag ring through the branch road. The balloon ring is inflated to fill a portion of the gap at one end of the linear elastic member. After the air bag ring, the branch and the air containing cavity are filled with air, a connecting pipeline of the control system and the cylinder cover is closed, so that the air is prevented from flowing back. When the piston presses the linear elastic element through the connecting seat, the working length of the linear elastic element is shortened. Whereby the elastic force is reduced. The internal elasticity of the pneumatic controller is adjusted without manual replacement.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic top cross-sectional view of the overall structure of the present utility model;

FIG. 3 is a schematic perspective view of the wave spring structure of the present utility model;

FIG. 4 is a schematic perspective view of a spring device according to a third embodiment of the present utility model;

FIG. 5 is a schematic perspective view of a spring device according to a fourth embodiment of the present utility model;

FIG. 6 is a schematic front view of a spring device according to a fourth embodiment of the present utility model;

in the figure: 1. an execution case; 11. a cavity; 2. a cylinder cover; 31. a gear post; 32. a piston; 4. a spring device; 41. a support rod; 42. a base; 43. a linear elastic member; 431. a wave spring; 44. a connecting seat; 422. a fixing seat; 401. a gas-accommodating cavity; 402. a branch; 51. a movable seat; 52. an air hose; 6. an air bag ring.

Description of the embodiments

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.

Embodiment one: the pneumatic actuator adopts a unidirectional function to block the B pipe mouth.

Referring to fig. 1-2, the present utility model provides the following technical solutions: the utility model provides a pneumatic valve spring device with adjust elasticity, including carrying out casing 1, two cylinder caps 2, carry out the both ends of casing 1 respectively with two cylinder caps 2 one-to-one fixed connection, one side of carrying out casing 1 is provided with A pipe mouth, B pipe mouth, carry out the side that casing 1 kept away from A pipe mouth, B pipe mouth is connected with gear post 31 through the bearing, carry out the side of casing 1 and be connected with gear post 31 through the bearing, carry out the inside cavity 11 that is provided with of casing 1, piston 32, gear post 31 is located cavity 11 center department, and both ends run through in the side of carrying out casing 1, the terminal surface and the piston 32 adoption clearance fit of cavity 11, the side and the inner wall sliding connection of carrying out casing 1 of piston 32, the inside of cylinder cap 2 is provided with multiunit spring device 4, spring device 4 includes connecting seat 44, branch 41, linear elastic piece 43, the one end and the piston 32 sliding connection of connecting seat 44, the one end and the connecting seat 44 are connected through interference fit, the side and the connecting seat 44 of branch 41 adopts sliding connection, branch 41 is located the inside of linear elastic piece 43, one end and connecting seat 44 fixed connection; the spring device 4 further comprises a base 42, one end of the base 42 is fixedly connected with the inner wall of the cylinder cover 2, one end of the supporting rod 41 away from the connecting seat 44 is fixedly connected with the base 42, and one end of the linear elastic piece 43 away from the connecting seat 44 is fixedly connected with the base 42. The linear elastic member 43 employs a coil spring.

Working principle: when compressed air enters the cavity 11 from the A pipe mouth of the execution shell 1, the air pushes the piston 32 to move linearly towards the two ends, the rack on the piston 32 drives the gear on the gear column 31 to rotate 90 degrees anticlockwise, and meanwhile, the piston 32 pushes the connecting seat 44 to move towards the cylinder cover 2. The connecting seat 44 pushes the supporting rod 41 to move, the spiral spring is pressed, and the valve is opened. After the compressed air does not enter the cavity 11 from the A pipe mouth of the execution shell 1, the spiral spring pushes the connecting seat 44 to move, the connecting seat 44 pushes the piston 32 to move linearly towards the middle, the rack on the piston 32 drives the gear on the gear column 31 to rotate 90 degrees clockwise, and the valve is closed.

Embodiment two: referring to fig. 3, when the pneumatic actuator adopts bidirectional action, adjustment is performed according to the first embodiment. Wherein the linear elastic member 43 employs a wave spring 431.

Working principle: when compressed air enters the cavity 11 from the A pipe mouth of the execution shell 1, the air pushes the piston 32 to move linearly towards the two ends, the rack on the piston 32 drives the gear on the gear column 31 to rotate 90 degrees anticlockwise, and the valve is opened. At this time, the gas at both ends of the piston 32 is discharged along with the B-pipe mouth of the actuating housing 1, and at the same time, the piston 32 pushes the connecting seat 44 to move toward the cylinder head 2. The connecting seat 44 pushes the supporting rod 41 to move, and presses the wave spring 431. The wave spring 431 contracts to buffer the shock absorbing energy. When compressed air enters the two ends of the execution shell 1 from the nozzle B of the execution shell 1, the air pushes the piston 32 to move linearly towards the middle, the rack on the piston 32 drives the gear on the gear column 31 to rotate 90 degrees clockwise, and the valve is closed. The gas in the middle of the execution casing 1 is discharged along with the A pipe mouth.

Embodiment III: referring to fig. 4, when the valve opening is dislocated, the process is not interrupted. Modifications are made at the base 42 according to an embodiment aspect, wherein:

the spring device 4 further comprises a movable seat 51 and an air hose 52, wherein the inner side of the movable seat 51 is in threaded connection with the side face of the supporting rod 41, one end of the supporting rod 41 away from the connecting seat 44 is fixedly connected with the cylinder cover 2, one end of the movable seat 51 is hinged with the linear elastic piece 43, one end of the movable seat 51 away from the linear elastic piece 43 is fixedly connected with the air hose 52, one end of the air hose 52 away from the movable seat 51 is fixedly connected with the cylinder cover 2, an air inlet is formed in the cylinder cover 2 and is connected with the pipe nozzle A through a pipeline, and one end of the air inlet is communicated with the air hose 52. A branching plate is arranged at the position of the pipe nozzle A.

Working principle: the air inlet speed of the pipe nozzle A is improved, and the total inlet amount is unchanged. The branching plate is pushed to open by the air, a large amount of air enters the cavity 11, a small amount of air reaches the air inlet through the pipeline to enter the air hose 52, the air hose 52 is rapidly inflated, and the movable seat 51 is pushed to rotationally engage with the threads on the supporting rod 41 to move. The movable seat 51 approaches the connection seat 44, and the linear elastic member 43 is compressed and contracted by a portion. As the total amount of gas entering the chamber 11 decreases, the displacement of the piston 32 decreases, and the amount of displacement of the connecting seat 44 toward the moving seat 51 decreases. The connecting seat 44 pushes the linear elastic member 43 to perform the remaining deformation. When the air intake is stopped, the linear elastic member 43 pushes the connecting seat 44 and the moving seat 51 to move. The branching plate restricts the gas discharge rate of the gas hose 52 and a large amount of elastic force acts on the connecting holder 44 to push the connecting holder 44 to return the piston 32.

Embodiment four: referring to fig. 5-6, the modification at the base 42 is performed according to the first embodiment, so as to ensure that the spring device 4 does not excessively reset. Wherein:

the spring device 4 still includes fixing base 422, the one end and the cylinder cap 2 fixed connection of fixing base 422, the big terminal surface fixed connection of cylinder cap 2 is kept away from to linear elastic component 43's one end and fixing base 422, hold air cavity 401 has been seted up to the one end that the fixing base 422 is close to cylinder cap 2, the one end that the actuating housing 1 was kept away from to cylinder cap 2 has control system through the pipe connection, hold air cavity 401 is close to the one end of cylinder cap 2 and control system through pipe connection, the inside branch road 402 that evenly is provided with of fixing base 422, the fixing base 422 is kept away from the cylinder side of cylinder cap 2 evenly fixedly connected with gasbag ring 6, the inboard and the branch road 402 link up of gasbag ring 6, gasbag ring 6 is located linear elastic component 43 inside.

Working principle: the control system inflates the air-accommodating chamber 401 and the air enters the air-bag ring 6 through the branch 402. The balloon ring 6 is inflated to fill a part of the gap at one end of the linear elastic member 43. After the air bag ring 6, the branch 402 and the air accommodating cavity 401 are filled with air, the connecting pipeline of the control system and the cylinder cover 2 is closed, so that the air is prevented from flowing back. When the piston 32 presses the linear elastic member 43 through the connecting seat 44, the working length of the linear elastic member 43 is reduced. Whereby the elastic force is reduced. The connecting seat 44 pushes the piston 32 to return normally.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. Pneumatic valve spring device with adjust elasticity, including carrying out casing (1), two cylinder caps (2), its characterized in that: the utility model discloses a cylinder head, including carrying out casing (1), cylinder cap (2), the both ends of carrying out casing (1) respectively with two cylinder caps (2) one-to-one fixed connection, one side of carrying out casing (1) is provided with A pipe mouth, B pipe mouth, the side that A pipe mouth, B pipe mouth were kept away from to carrying out casing (1) is connected with gear post (31) through the bearing, the inside cavity (11) that is provided with of carrying out casing (1), piston (32), gear post (31) are located cavity (11) center department, and both ends run through in the side of carrying out casing (1), the terminal surface and the piston (32) of cavity (11) adopt clearance fit, the side and the inner wall sliding connection of carrying out casing (1) of piston (32), the inside of cylinder cap (2) is provided with multiunit spring device (4), spring device (4) are including connecting seat (44), branch (41), linear elastic component (43), the one end and piston (32) sliding connection of connecting seat (41), one end and connecting seat (44) are connected through interference fit, side and branch (41) are located linear elastic component (43) with the inside of connecting seat (41).

2. A pneumatic valve spring assembly with modulated resilience as set forth in claim 1, wherein: the spring device (4) further comprises a base (42), one end of the base (42) is fixedly connected with the inner wall of the cylinder cover (2), one end of the supporting rod (41) away from the connecting seat (44) is fixedly connected with the base (42), and one end of the linear elastic piece (43) away from the connecting seat (44) is fixedly connected with the base (42).

3. A pneumatic valve spring assembly with modulated resilience as set forth in claim 1, wherein: the spring device (4) further comprises a movable seat (51) and a gas hose (52), wherein the inner side of the movable seat (51) is in threaded connection with the side face of the supporting rod (41), one end of the supporting rod (41) away from the connecting seat (44) is fixedly connected with the cylinder cover (2), one end of the movable seat (51) is hinged with the linear elastic piece (43), one end of the movable seat (51) away from the linear elastic piece (43) is fixedly connected with the gas hose (52), one end of the gas hose (52) away from the movable seat (51) is fixedly connected with the cylinder cover (2), an air inlet is formed in the cylinder cover (2), the air inlet is connected with the A pipe nozzle through a pipeline, and one end of the air inlet is communicated with the gas hose (52).

4. A pneumatic valve spring assembly with modulated resilience as set forth in claim 1, wherein: the spring device (4) further comprises a fixing seat (422), one end of the fixing seat (422) is fixedly connected with the cylinder cover (2), one end of the linear elastic piece (43) is fixedly connected with the fixing seat (422) away from the large end face of the cylinder cover (2), an air accommodating cavity (401) is formed in one end, close to the cylinder cover (2), of the fixing seat (422), one end, close to the cylinder cover (2), of the cylinder cover (2) is connected with a control system through a pipeline, one end, close to the cylinder cover (2), of the air accommodating cavity (401) is connected with the control system through a pipeline, a branch (402) is uniformly arranged inside the fixing seat (422), an air bag ring (6) is uniformly fixedly connected with the side face of the cylinder, far away from the cylinder cover (2), the inner side of the air bag ring (6) is communicated with the branch (402), and the air bag ring (6) is located inside the linear elastic piece (43).

5. A pneumatic valve spring assembly with modulated resilience as set forth in claim 1, wherein: the linear elastic member (43) adopts a coil spring.

6. A pneumatic valve spring assembly with modulated resilience as set forth in claim 1, wherein: the linear elastic member (43) adopts a wave spring (431).