CN217272259U - Double-guide symmetrical single-action pneumatic actuating mechanism - Google Patents
Double-guide symmetrical single-action pneumatic actuating mechanism Download PDFInfo
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- CN217272259U CN217272259U CN202221113583.5U CN202221113583U CN217272259U CN 217272259 U CN217272259 U CN 217272259U CN 202221113583 U CN202221113583 U CN 202221113583U CN 217272259 U CN217272259 U CN 217272259U
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- pneumatic actuator
- guide rods
- cylinder
- guide
- piston rod
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Abstract
The utility model belongs to the technical field of pneumatic actuator, concretely relates to two direction, symmetrical formula single action pneumatic actuator, the utility model discloses a: a cylinder; the piston rod is arranged in the cylinder, two ends of the piston rod extend out of the cylinder, and the piston rod is provided with a connecting section; and the manual mechanism is connected with the connecting section at any end. The utility model provides a waste time and energy to change the technical problem of pneumatic actuator in order to adapt to different operating modes.
Description
Technical Field
The utility model belongs to the technical field of pneumatic actuator, concretely relates to two direction, symmetrical formula single action pneumatic actuator.
Background
The pneumatic actuator can realize rapid linear circulating motion, has simple structure and convenient and fast maintenance, can be used in various severe working environments, has explosion-proof requirements and working conditions of multiple dust or humidity, and is mainly applied to places such as petroleum, natural gas, chemical industry, electric power, printing and dyeing, mining industry, pharmacy and the like. Pneumatic actuators normally have two states, one being valve closed when out of gas, called FC (fail close), and the other being valve fully open when out of gas, called FO (fail open). In a pipeline system, a pneumatic actuator in an FC or FO state needs to be selected according to actual use conditions, but when the pneumatic actuator in different states is used for replacement according to different working conditions, complicated disassembly and assembly work is needed for replacement, and the whole process of replacing the pneumatic actuator is time-consuming and labor-consuming.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides a two direction, symmetrical formula single action pneumatic actuator for solve the technical problem who changes pneumatic actuator in order to adapt to different operating modes with wasting time and energy.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a dual-steering, symmetrical, single-acting pneumatic actuator, comprising:
a cylinder;
the piston rod is arranged in the cylinder, two ends of the piston rod extend out of the cylinder, and the piston rod is provided with a connecting section;
and the manual mechanism is connected with the connecting section at any end.
The utility model discloses only need be through the mounted position of the manually operated mechanism at adjustment piston rod both ends, just can realize the change of pneumatic actuator of FC/FO state, labour saving and time saving.
Further: a cylinder body;
the upper end cover is arranged at one end of the cylinder body, and the top surface of the upper end cover is provided with a plurality of uniformly distributed through holes;
the lower end cover is arranged at the other end of the cylinder body;
the guide rods are arranged on one surface, facing the cylinder body, of the lower end cover, the positions of the guide rods correspond to the positions of the through holes, the guide rods are respectively inserted into the corresponding through holes, and the head ends of the guide rods extend out of the through holes;
the spring is sleeved outside the profile formed by connecting the guide rods and is restrained between the piston rod and the upper end cover;
the piston rod further comprises a piston plate, the piston plate is arranged in the middle of the piston rod, the piston plate is matched with the inner wall of the cylinder body, and the guide rods penetrate through the piston plate.
The beneficial effects of the step are as follows: the guide rod replaces the traditional pull rod, and the external pull rod is changed into the internal guide rod, so that the external pull rod can be prevented from being corroded, and sufficient locking force cannot be provided; the spring provides reset thrust for the piston plate, and the piston plate can be pushed under the condition of air loss and pressure reduction so as to achieve the purpose of opening or closing the air passage.
Further: the upper end cover and the lower end cover are provided with annular rabbets on the surfaces facing the cylinder body, and first sealing ring grooves are formed in the contact surfaces of the annular rabbets and the cylinder body.
The beneficial effects of the step are as follows: the annular spigot can restrict the upper end cover and the lower end cover from radial displacement, and the sealing ring in the first sealing ring groove can ensure the air tightness of the cylinder.
Further: the connecting section is further provided with a transition connector, one end of the transition connector is connected with the manual mechanism, and the other end of the transition connector is connected with the end of the connecting section through a thread pair.
The beneficial effects of the step are as follows: the pneumatic actuator needs to exchange two ends of the manual mechanism frequently in order to change the working state, and the connecting section is easy to wear after a long time. In order to prolong the service life of the connecting section and avoid disassembling the cylinder for replacement and maintenance, the transition connector is arranged, even if the transition connector is worn, only the transition connector needs to be replaced, the cylinder does not need to be disassembled for replacement and maintenance, and the difficulty in use and maintenance is reduced.
Further, the method comprises the following steps: the manual mechanism is a hand wheel.
The beneficial effects of the step are as follows: the hand wheel is convenient to use and has balanced force application.
Further, the method comprises the following steps: and a second sealing ring groove is formed in the outer circular surface of the piston plate.
The beneficial effects of the step are as follows: the sealing ring in the second sealing ring groove on the outer circular surface of the piston plate can ensure that the spaces on two sides of the piston plate cannot be mixed with air, and the cylinder is kept to work normally.
Further: the piston plate is provided with a plurality of guide sleeves, the positions of the guide sleeves correspond to the positions of the guide rods, the guide sleeves are sleeved on the guide rods, and third sealing ring grooves are formed in the contact surfaces of the guide sleeves, the piston plate and the guide rods.
The beneficial effects of the step are as follows: the sealing ring in the third sealing ring groove on the guide sleeve can ensure that the spaces at two sides of the piston plate cannot be mixed with air, so that the normal work of the air cylinder is kept.
The utility model has the advantages that:
1. when FO/FC state switching is carried out on the pneumatic actuator, the pneumatic actuator does not need to be replaced, and the FO/FC state switching can be completed only by switching the manual mechanisms at the two ends of the piston rod, so that the FO/FC state switching device is simple to operate, and saves time and labor;
2. the built-in guide rod can avoid exposing, produces the corrosion and influences life-span, can remove the direction to the piston board in the cylinder again, avoids the piston board unbalance loading, causes the piston board both sides gas leakage and leads to losing balance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a double-guide symmetrical single-acting pneumatic actuator according to the present invention;
FIG. 2 is a schematic structural view of a manual mechanism for replacing a double-guide symmetrical single-acting pneumatic actuator according to the present invention;
reference numerals are as follows:
1-a cylinder; 2-a piston rod; 3-a manual mechanism;
11-a cylinder body; 12-upper end cap; 13-lower end cap; 14-a guide bar; 15-a spring; 16-a guide sleeve; 21-a piston plate; 22-a transition joint;
131-a first seal ring groove; 161-third seal ring groove; 211-second seal ring groove.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Examples
As shown in fig. 1, the technical solution of the present invention to solve the above technical problems is as follows: a dual-steering, symmetrical, single-acting pneumatic actuator, comprising:
a cylinder 1;
the piston rod 2 is arranged in the cylinder 1, and two ends of the piston rod 2 extend out of the cylinder 1 and are provided with connecting sections;
and the manual mechanism 3 is connected with the connecting section at any end.
The utility model discloses only need be through the mounted position of the manually operated mechanism 3 at 2 both ends of adjusting piston rod, just can realize the change of the pneumatic actuator of FC/FO state, labour saving and time saving.
As shown in fig. 1 and 2, the cylinder 11;
the upper end cover 12 is arranged at one end of the cylinder body 11, and a plurality of uniformly distributed through holes are formed in the top surface of the upper end cover 12;
the lower end cover 13 is arranged at the other end of the cylinder body 11;
the guide rods 14 are arranged on one surface, facing the cylinder body 11, of the lower end cover 13, the positions of the guide rods 14 correspond to the positions of the through holes, the guide rods 14 are respectively inserted into the corresponding through holes, and the head ends of the guide rods 14 extend out of the through holes;
the spring 15 is sleeved on the outer side of the profile formed by connecting the guide rods 14, and the spring 15 is restrained between the piston rod 2 and the upper end cover 12;
the piston rod 2 further comprises a piston plate 21, the piston plate 21 is arranged in the middle of the piston rod 2, the piston plate 21 is matched with the inner wall of the cylinder body 11, and the guide rods 14 penetrate through the piston plate 21. The guide rod 14 replaces a traditional pull rod, an external pull rod is changed into the internal guide rod 14, so that the external pull rod can be prevented from being corroded, and sufficient locking force cannot be provided; the spring 15 provides a reset thrust for the piston plate 21, and can push the piston plate 21 under the condition of air loss and pressure reduction so as to achieve the purpose of opening or closing the air passage.
As shown in fig. 1, the upper end cap 12 and the lower end cap 13 are provided with annular stop openings on their surfaces facing the cylinder 11, and a first seal ring groove 131 is provided on the contact surface of the annular stop openings and the cylinder 11. The annular seam allowance can limit the radial displacement of the upper end cover 12 and the lower end cover 13, and the sealing ring in the first sealing ring groove 131 can ensure the air tightness of the cylinder 1.
As shown in fig. 1 and fig. 2, the connecting section is further provided with a transition connector 22, one end of the transition connector 22 is connected with the manual mechanism 3, and the other end of the transition connector 22 is connected with the end of the connecting section through a thread pair. The pneumatic actuator needs to exchange two ends of the manual mechanism 3 frequently in order to change the working state, and the connecting section is easy to wear after a long time. In order to prolong the service life of the connecting section, the cylinder 1 is prevented from being disassembled for replacement and maintenance, the transition connector 22 is arranged, even if the transition connector 22 is abraded, only the transition connector 22 needs to be replaced, the cylinder 1 does not need to be disassembled for replacement and maintenance, and the difficulty in use and maintenance is reduced.
The manual mechanism 3 is a hand wheel. The hand wheel is convenient to use and has balanced force application.
The outer circumferential surface of the piston plate 21 is provided with a second seal groove 211. The sealing ring in the second sealing ring groove 211 on the outer circumferential surface of the piston plate 21 can ensure that the spaces on both sides of the piston plate 21 are not aerated, and the normal operation of the cylinder 1 is maintained.
The piston plate 21 is provided with a plurality of guide sleeves 16, the positions of the guide sleeves 16 correspond to the positions of the guide rods 14, the guide sleeves 16 are sleeved on the guide rods 14, and a third sealing ring groove 161 is formed in the contact surface of the guide sleeves 16 with the piston plate 21 and the guide rods 14. The sealing ring in the third sealing ring groove 161 on the guide sleeve 16 can ensure that the spaces on both sides of the piston plate 21 cannot be mixed with air, and the normal work of the cylinder 1 is kept.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A dual-steering, symmetrical single-acting pneumatic actuator comprising:
a cylinder;
the piston rod is arranged in the cylinder, two ends of the piston rod extend out of the cylinder, and the piston rod is provided with a connecting section;
and the manual mechanism is connected with the connecting section at any end.
2. A dual pilot, symmetrical, single action pneumatic actuator according to claim 1, wherein said cylinder comprises:
a cylinder body;
the upper end cover is arranged at one end of the cylinder body, and the top surface of the upper end cover is provided with a plurality of uniformly distributed through holes;
the lower end cover is arranged at the other end of the cylinder body;
the guide rods are arranged on one surface, facing the cylinder body, of the lower end cover, the positions of the guide rods correspond to the positions of the through holes, the guide rods are respectively inserted into the corresponding through holes, and the head ends of the guide rods extend out of the through holes;
the spring is sleeved on the outer side of the profile formed by connecting the guide rods and is restrained between the piston rod and the upper end cover;
the piston rod further comprises a piston plate, the piston plate is arranged in the middle of the piston rod, the piston plate is matched with the inner wall of the cylinder body, and the guide rods penetrate through the piston plate.
3. A double-guide and symmetrical single-action pneumatic actuator as claimed in claim 2, wherein the upper end cover and the lower end cover are provided with annular spigots on the surfaces facing the cylinder body, and the contact surface of the annular spigots and the cylinder body is provided with a first sealing ring groove.
4. A dual-steering, symmetrical, single-acting pneumatic actuator as claimed in claim 1, wherein said connecting section further comprises a transition connector, one end of said transition connector is connected to said manual actuator, and the other end of said transition connector is connected to the end of said connecting section by a screw pair.
5. A dual pilot, symmetrical, single action pneumatic actuator as set forth in claim 1 wherein said manual mechanism is a hand wheel.
6. A dual pilot, symmetrical, single acting pneumatic actuator according to claim 2, wherein the outer circumferential surface of the piston plate is provided with a second sealing ring groove.
7. The dual-guide symmetrical single-action pneumatic actuator as claimed in claim 2, wherein the piston plate is provided with a plurality of guide sleeves, the positions of the guide sleeves correspond to the positions of the guide rods, the guide sleeves are sleeved on the guide rods, and the contact surfaces of the guide sleeves, the piston plate and the guide rods are provided with third sealing ring grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221113583.5U CN217272259U (en) | 2022-05-10 | 2022-05-10 | Double-guide symmetrical single-action pneumatic actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221113583.5U CN217272259U (en) | 2022-05-10 | 2022-05-10 | Double-guide symmetrical single-action pneumatic actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217272259U true CN217272259U (en) | 2022-08-23 |
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ID=82885241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221113583.5U Active CN217272259U (en) | 2022-05-10 | 2022-05-10 | Double-guide symmetrical single-action pneumatic actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217272259U (en) |
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- 2022-05-10 CN CN202221113583.5U patent/CN217272259U/en active Active
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