CN213117688U

CN213117688U - Pneumatic actuator with easily-recognized action

Info

Publication number: CN213117688U
Application number: CN202021400579.8U
Authority: CN
Inventors: 邵茂疗; 范良港
Original assignee: Zhejiang Bangye Automation Technology Co ltd
Current assignee: Zhejiang Bangye Automation Technology Co ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-05-04
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a pneumatic actuator with easily recognized action, which comprises a cylinder, a piston, a gear shaft, an end cover and a sealing element, wherein the gear shaft is rotationally connected to the cylinder, the gear shaft is provided with a linkage shaft extending out of the cylinder, the linkage shaft is provided with an indicating end cover rotating along with the linkage shaft, the indicating end cover is provided with an indicating block, and the linkage shaft is sleeved with an angle dial arranged on the cylinder; the indicating end cover comprises an annular indicating cap, a follow-up hole for the linkage shaft to be spliced is formed in the indicating cap, a rotation limiting protrusion is arranged on the hole wall of the follow-up hole, and a rotation limiting notch matched with the rotation limiting protrusion is formed in the shaft wall of the linkage shaft. The pneumatic actuator has the advantages of being convenient and fast to observe the action state, complete in overall function and high in practicability.

Description

Pneumatic actuator with easily-recognized action

Technical Field

The utility model relates to a pneumatic means, more specifically say, it relates to a pneumatic actuator of action easy discernment.

Background

The pneumatic actuator is an actuating device for opening and closing or regulating a valve by air pressure, is also called a pneumatic actuating mechanism or a pneumatic device, but is generally called a pneumatic head. Pneumatic actuators are sometimes also equipped with certain auxiliary devices. Commonly used valve positioners and hand wheel mechanisms. The valve positioner is used for improving the performance of the actuator by utilizing a feedback principle, so that the actuator can realize accurate positioning according to a control signal of the controller. The hand wheel mechanism is used for directly operating the control valve to maintain normal production when the control system has no power supply, no air supply, no output of the controller or failure of the actuating mechanism.

Most of pneumatic actuators realize the change of action states through air source switching in the use process. However, most of the pneumatic actuators for realizing action change are arranged in the cylinders of the actuators, so that the pneumatic actuators cannot be visually observed, the action states of the actuators are easily judged by mistake, the overall use is affected, and the overall effect is poor. Therefore, the utility model provides a pneumatic actuator of action easy discernment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the above-mentioned prior art, provide an easy pneumatic actuator who discerns of action, this pneumatic actuator has the convenient characteristics of action state observation.

In order to solve the technical problem, the purpose of the utility model is to realize like this: the utility model relates to a pneumatic actuator of action easy recognition, including cylinder, piston, gear shaft, end cover, sealing member, the gear shaft rotates to be connected on the cylinder, the gear shaft has the universal driving shaft that stretches out the cylinder, is equipped with on the universal driving shaft to do the pivoted along with it and instructs the end cover, instructs to be equipped with the instruction piece on the end cover, the cover has the angle calibrated scale of establishing on the cylinder on the universal driving shaft.

The utility model discloses further set up to: the indicating end cover comprises an annular indicating cap, a follow-up hole for the linkage shaft to be spliced is formed in the indicating cap, a rotation limiting protrusion is arranged on the hole wall of the follow-up hole, and a rotation limiting notch matched with the rotation limiting protrusion is formed in the shaft wall of the linkage shaft.

The utility model discloses further set up to: the end face of the linkage shaft is provided with a threaded hole, and a limiting screw for limiting the indicating cap to axially slide is connected to the threaded hole in a threaded manner.

The utility model discloses further set up to: the limiting screw comprises a screw cap, and notch grooves are distributed on the edge of the screw cap.

The utility model discloses further set up to: the side wall surface of the indicating end cover is provided with a matching groove for embedding the indicating block, and the indicating block is embedded in the matching groove.

The utility model discloses further set up to: the mating groove has a stepped shoulder that limits downward movement of the indicator block.

To sum up, the utility model discloses following beneficial effect has: the utility model relates to a pneumatic actuator with easily-identified actions, which is characterized in that an indicating end cover for identification is arranged on a universal driving shaft extending out of a cylinder, and the indicating end cover is matched with an angle dial disc arranged on the cylinder, so that the operating state of the pneumatic actuator can be visually displayed, and the operating state of the pneumatic actuator can be conveniently judged; and adopt the dismantlement of grafting mode to be connected between instruction piece and the instruction end cover, the two independent manufacturing of being convenient for, change and distinguish and discern, overall function is perfect, and the practicality is strong.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is a schematic view of the overall structure of the indicating end cap according to the present invention;

fig. 5 is an exploded schematic view of the indicating end cap of the present invention;

fig. 6 is a schematic view of the internal structure of the indicating cap according to the present invention;

fig. 7 is a schematic structural diagram for embodying an indication block of the present invention;

fig. 8 is a schematic structural diagram for embodying the gear shaft of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the patent requirements of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The invention will be further described with reference to the accompanying drawings and preferred embodiments.

Example 1

Referring to fig. 1 and 2, the pneumatic actuator with easily recognizable actions in the present embodiment includes a cylinder 1, a piston 2, a gear shaft 3, an end cover 4, and a sealing member, wherein the gear shaft 3 is rotatably connected to the cylinder 1, the gear shaft 3 has a linkage shaft 5 extending out of the cylinder 1, the linkage shaft 5 is provided with an indicating end cover 6 rotating with the linkage shaft, the indicating end cover 6 is provided with an indicating block 7, and the linkage shaft 5 is sleeved with an angle dial 8 arranged on the cylinder 1.

In this embodiment, by operating the pneumatic actuator, the inner linkage parts thereof operate with each other, so that the gear shaft 3 rotates, and the linkage shaft 5 rotates in cooperation. In the process of rotating the linkage shaft 5, the indicating end cover 6 is arranged on the end part rotating along with the linkage shaft 5, so that the indicating end cover rotates together, and the rotating angle generated by rotation is indicated on the angle dial 8 by the indicating block 7 for displaying, thereby being convenient for visual observation.

Example 2

Referring to fig. 1 to 8, in the pneumatic actuator with easily recognizable actions according to the present embodiment, on the basis of embodiment 1, the indicating end cover 6 further includes an annular indicating cap 61, a following hole 62 for inserting the linkage shaft 5 is formed in the indicating cap 61, a rotation limiting protrusion 63 is formed on a hole wall of the following hole 62, and a rotation limiting notch 51 matched with the rotation limiting protrusion 63 is formed on a shaft wall of the linkage shaft 5.

Through set up the protruding 63 of rotation limit on instructing cap 61, set up the protruding 63 of rotation limit's of cooperation rotation limit breach 51 on universal driving shaft 5 for the transmission is inseparable between the two, can not produce the circumference skew, and turned angle is accurate error-free.

Example 3

Referring to fig. 1 to 8, in the pneumatic actuator of the present embodiment, based on

embodiments

1 and 2, a threaded hole 52 is further formed in an end surface of the linkage shaft 5, and a limit screw 9 for limiting the axial sliding of the indication cap 61 is connected in the threaded hole 52 in a threaded manner.

Through the setting of stop screw 9, be used as the axial spacing and the fixed action to instructing cap 61, avoid instructing cap 61 to make axial slip, play spacing effect.

Further, the limit screw 9 comprises a screw cap 91, and a notch groove 92 is distributed on the edge of the screw cap 91. Through the addition of the notch groove 92, the limiting screw 9 can be manually screwed, so that the limiting screw is convenient to rotate; and the notch groove 92 increases the friction force in the screwing process and is easier to rotate.

Example 4

Referring to fig. 1 to 8, in addition to

embodiments

1, 2 and 3, the pneumatic actuator according to the present embodiment, which is easy to recognize in operation, is further configured such that a fitting groove 64 into which the indicator block 7 is fitted is formed in a side wall surface of the indicator cap 6, and the indicator block 7 is fitted into the fitting groove 64. Through the detachable connection of adopting the grafting mode between will indicateing piece 7 and indicating end cover 6, be convenient for both independent manufacturing, and can use the great material of colour difference, cause to form bright contrast between the two, distinguish more easily and discern.

Further, the fitting groove 64 has a stepped shoulder 65 that restricts downward movement of the indicator block 7. Through the arrangement of the stepped shoulder 65, the indication block 7 is limited in the sliding direction, and the assembly is facilitated.

The utility model relates to a pneumatic actuator with easily-identified actions, which is characterized in that an indicating end cover for identification is arranged on a universal driving shaft extending out of a cylinder, and the indicating end cover is matched with an angle dial disc arranged on the cylinder, so that the operating state of the pneumatic actuator can be visually displayed, and the operating state of the pneumatic actuator can be conveniently judged; and adopt the dismantlement of grafting mode to be connected between instruction piece and the instruction end cover, the two independent manufacturing of being convenient for, change and distinguish and discern, overall function is perfect, and the practicality is strong.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate an orientation or positional relationship based on the actual orientation or positional relationship shown, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, it is possible for those skilled in the art to combine the embodiments and understand the specific meanings of the above terms according to specific situations.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a pneumatic actuator of action easy recognition, includes cylinder, piston, gear shaft, end cover, sealing member, the gear shaft rotates to be connected on the cylinder, its characterized in that: the gear shaft is provided with a linkage shaft extending out of the cylinder, an indicating end cover rotating along with the linkage shaft is arranged on the linkage shaft, an indicating block is arranged on the indicating end cover, and an angle dial disc arranged on the cylinder is sleeved on the linkage shaft.

2. The motion-recognizable pneumatic actuator of claim 1, wherein: the indicating end cover comprises an annular indicating cap, a follow-up hole for the linkage shaft to be spliced is formed in the indicating cap, a rotation limiting protrusion is arranged on the hole wall of the follow-up hole, and a rotation limiting notch matched with the rotation limiting protrusion is formed in the shaft wall of the linkage shaft.

3. The motion-recognizable pneumatic actuator of claim 2, wherein: the end face of the linkage shaft is provided with a threaded hole, and a limiting screw for limiting the indicating cap to axially slide is connected to the threaded hole in a threaded manner.

4. The motion-recognizable pneumatic actuator of claim 3, wherein: the limiting screw comprises a screw cap, and notch grooves are distributed on the edge of the screw cap.

5. The motion-recognizable pneumatic actuator of any one of claims 1-4, wherein: the side wall surface of the indicating end cover is provided with a matching groove for embedding the indicating block, and the indicating block is embedded in the matching groove.

6. The motion-recognizable pneumatic actuator of claim 5, wherein: the mating groove has a stepped shoulder that limits downward movement of the indicator block.