Exhaust device for pneumatic actuator

Abstract

The utility model discloses an exhaust device for a pneumatic actuator, which belongs to the technical field of pneumatic actuators and comprises a mounting frame, a pneumatic actuator body, an exhaust pipe arranged at the top of the mounting frame and one side of the pneumatic actuator body, and an exhaust component arranged at the tail end of the exhaust pipe and comprising an exhaust tank. An opening and closing door is arranged at the top of the exhaust tank, a filter plate used for filtering dust in air is arranged in the exhaust tank, and protection assemblies used for protecting the filter plate are arranged on the two sides of the filter plate. And impact force on the filter screen is relieved through buffering of the second spring, the filter screen can be effectively protected, the service life of the filter screen is greatly prolonged, meanwhile, dust in air can be filtered out, and cleanliness of the interior of the pneumatic actuator body is kept.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of starting executor, especially a kind of exhaust device for pneumatic executor. BACKGROUND

[0002] Pneumatic executor is a kind of device using compressed air as power source, and air pressure energy is converted into mechanical movement, is widely used in industrial automation control system, for driving valve, mechanical arm, conveying device and other equipment.Pneumatic executor is driven by receiving compressed air, and piston, diaphragm or gear mechanism is moved, so as to output linear displacement or rotary movement, finally drive load (such as valve switch, mechanical arm action etc.).

[0003] Pneumatic executor is commonly used in industrial automation control system, and is driven by compressed air to realize various mechanical actions.In the working process of pneumatic executor, exhaust is an indispensable link.External dust is easy to enter the exhaust device, which can affect the internal cleanliness of pneumatic executor, and further affect the normal work of pneumatic executor.The existing solution is to add filter screen in exhaust device to filter dust in air, but there are the following problems:

[0004] Filter screen is fixedly installed and easy to be damaged: the filter screen in traditional exhaust device is usually directly installed in exhaust passage by welding, riveting or screw fixing, and is subjected to the impact of high-speed airflow for a long time, which can easily deform, break or fall off, resulting in failure of filtering function.Maintenance and replacement are difficult: since filter screen is fixedly installed, once damaged or blocked, the entire exhaust device needs to be disassembled for replacement or cleaning, which increases maintenance cost and time.

[0005] The utility model aims at providing an exhaust device for pneumatic executor to solve the problems in the background art. UTILITY MODEL CONTENT

[0006] The utility model aims at providing an exhaust device for pneumatic executor to solve the problems in the background art.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: an exhaust device for pneumatic executor, comprising a mounting frame, a pneumatic executor body, an exhaust pipe arranged on one side of the pneumatic executor body, an exhaust assembly arranged at the end of the exhaust pipe, the exhaust assembly comprising an exhaust tank, the exhaust tank being provided with a switch door at the top, the exhaust tank being provided with a filter plate for filtering dust in air, and the filter plate being provided with a protection assembly on both sides for protecting the filter plate.

[0008] Further, the protection assembly comprises limiting plates symmetrically arranged in the exhaust tank, and sliding columns are symmetrically arranged in each of the limiting plates.

[0009] Further, a second spring is sleeved outside each of the sliding columns, one end of the second spring is connected with the limiting plate, the other end of the second spring is connected with the mounting bracket, the filter plate is slidably connected in the mounting bracket, and a clamping groove is formed in one side of the mounting bracket.

[0010] Further, third springs are symmetrically arranged on both sides of the filter plate, a filter screen is arranged in the filter plate, and limiting balls matched with the clamping groove are arranged at the ends of the third springs.

[0011] Further, a noise reduction assembly for reducing noise during the exhaust process is arranged in the exhaust tank, the noise reduction assembly comprises two groups of mounting plates symmetrically arranged in the exhaust tank, and mounting frames are arranged in the mounting plates.

[0012] Further, a plurality of first springs are symmetrically arranged on both sides of the mounting frame, one end of each of the first springs is connected with the mounting frame, the other end of each of the first springs is connected with the mounting plate, and a porous noise reduction plate is arranged in the mounting frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model discloses a protection assembly is arranged, in the process of exhausting, the impact of gas to the filter plate and filter screen is buffered through the second spring and then slows down the impact force to the filter screen, can effectively protect the filter screen, greatly prolongs its life, can filter dust in air simultaneously, keeps the cleanness of the pneumatic actuator body, and the filter plate is also convenient to replace, and the utility model is easy to be used. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is the structural schematic diagram of the noise reduction assembly in the utility model;

[0018] Figure 3 It is the structural schematic diagram of the first spring in the utility model;

[0019] Figure 4 It is the structural schematic view of mounting support in the utility model;

[0020] Figure 5 It is the structural schematic view of sliding column in the utility model;

[0021] Figure 6 It is the structural schematic view of limiting ball in the utility model.

[0022] Explanation of reference signs:

[0023] In the drawing:

[0024] 1, mounting frame; 2, pneumatic actuator body; 3, exhaust pipe; 4, exhaust assembly; 5, switch door; 6, mounting plate; 7, porous sound-absorbing plate; 8, mounting frame; 9, first spring; 10, limiting plate; 11, mounting support; 12, filter screen; 13, sliding column; 14, second spring; 15, filter plate; 16, third spring; 17, limiting ball. DETAILED DESCRIPTION

[0025] In the following description, numerous specific details are given to provide a thorough understanding of the utility model. However, it will be apparent to one skilled in the art that the utility model can be practiced without one or more of these specific details. In other instances, well-known techniques have not been described in detail in order to avoid obscuring the utility model.

[0026] Unless the direction indicated by the single definition, the direction such as up, down, left, right, front, back, inside and outside involved in this paper is based on the direction such as up, down, left, right, front, back, inside and outside in the drawing shown by the utility model, which is explained here.

[0027] The connection mode can adopt existing modes such as bonding, welding, bolt connection, etc., and the actual needs are accurate.

[0028] Please refer to Figures 1 to 6 As shown in the figure, an exhaust device for pneumatic actuator, including mounting frame 1, pneumatic actuator body 2, pneumatic actuator body 2 is the existing equipment, its working principle is not described here, set in the top of mounting frame 1, exhaust pipe 3, set in one side of pneumatic actuator body 2, exhaust pipe 3 end is provided with exhaust assembly 4, exhaust assembly 4 includes exhaust tank, the top of exhaust tank is provided with switch door 5, the exhaust tank is provided with filter plate 15 for filtering dust in air.

[0029] The filter plate 15 is provided with a protection assembly on both sides for protecting the filter plate 15, the protection assembly comprises a limiting plate 10 symmetrically arranged in the exhaust tank, a sliding column 13 is symmetrically arranged in each limiting plate 10, an installation support 11 is slidably connected to the outer side of the sliding column 13, a second spring 14 is sleeved on the outer side of the sliding column 13, one end of the second spring 14 is connected with the limiting plate 10, the other end is connected with the installation support 11, the filter plate 15 is slidably connected in the installation support 11, and a clamping groove is formed in one side of the installation support 11.

[0030] During the exhaust process, the impact force of the gas on the filter screen will cause the filter screen to shake, and the filter screen will drive the filter plate to slide outside the sliding column while shaking because the filter screen is arranged in the filter plate, so that the second spring outside the sliding column buffers the filter plate, which can effectively buffer the impact force of the gas on the filter screen and avoid the direct impact of the gas impact force on the filter screen due to the rigid installation of the filter screen.

[0031] The third spring 16 is symmetrically arranged on both sides of the filter plate 15, the filter plate 15 is provided with a filter screen 12, the end of the third spring 16 is provided with a limiting ball 17 matched with the clamping groove, the limiting ball 17 is matched with the clamping groove in the installation support 8 to realize the installation of the filter plate 15, and the filter plate 15 is convenient to disassemble.

[0032] The exhaust tank is provided with a noise reduction assembly for noise reduction during the exhaust process, the noise reduction assembly comprises two groups of installation plates 6 symmetrically arranged in the exhaust tank, an installation frame 8 is arranged in the installation plate 6, a plurality of first springs 9 are symmetrically arranged on both sides of the installation frame 8, the first spring 9 is arranged here to drive the installation frame 8 to shake when the high-speed gas passes through the perforated sound-absorbing plate 7, and then the first spring 9 buffers it, so that the perforated sound-absorbing plate 7 can be effectively protected, one end of the first spring 9 is connected with the installation frame 8, the other end is connected with the installation plate 6, the installation frame 8 is provided with a perforated sound-absorbing plate 7, the perforated sound-absorbing plate is a kind of noise reduction element made of porous material (such as metal sintered plate, ceramic, foamed aluminum, etc.), when high-speed airflow passes through the porous structure, sound wave repeatedly refracts and reflects in the micro hole, and sound energy is converted into heat energy, thereby reducing noise.

[0033] Working principle: when working, the pneumatic actuator body 2 on the mounting frame 1 exhausts the gas into the exhaust tank through the exhaust pipe 3, then contacts the noise reduction assembly, and then drives the perforated sound-absorbing plate 7 to drive the installation frame 8 to shake, so as to shake in the installation plate 6, and then the first spring 9 is compressed, thereby buffering and protecting the perforated sound-absorbing plate 7;

[0034] Subsequently, the exhaust assembly 4 is in contact with the filter plate 15, and then the filter screen 12 on the filter plate 15 is impacted, and then the filter plate 15 drives the mounting bracket 11 to move, so that the mounting bracket 11 slides outside the sliding column 13, so that the second spring 14 is compressed, and then the filter screen 12 on the filter plate 15 is buffered and protected, when the filter plate 15 is replaced, the switch door 5 is opened, the filter plate 15 is pulled out from the mounting bracket 11, so that the limiting ball 17 enters the frame of the filter plate 15 from the clamping groove, the third spring 16 is compressed, and after being completely pulled out, the third spring 16 restores the deformation and then pushes out the limiting ball 17.

[0035] It should be noted that, in this document, relational terms such as one and the other and at least one of are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying that each modified entity or action must exist separately from another entity or action. Moreover, the terms "comprises", "comprising", or any other variations 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed or inherent to the process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust device for a pneumatic actuator, characterized by: The utility model relates to a kind of air exhaust device of pneumatic actuator, including Mounting frame (1); Pneumatic actuator body (2) is arranged on the top of mounting frame (1); Exhaust pipe (3) is arranged on one side of pneumatic actuator body (2), and the exhaust pipe (3) end is provided with exhaust assembly (4), and the exhaust assembly (4) includes exhaust tank, the exhaust tank top is provided with switch door (5), and the exhaust tank is provided with filter plate (15) for filtering dust in air, and the filter plate (15) both sides are provided with protection assembly for protecting filter plate (15).

2. An exhaust device for a pneumatic actuator according to claim 1, characterized in that: The protection assembly includes limiting plate (10) symmetrically arranged in exhaust tank, and single limiting plate (10) is symmetrically provided with sliding column (13) in upper and lower sides, and the sliding column (13) outer side is slidably connected with mounting bracket (11).

3. An exhaust arrangement for a pneumatic actuator according to claim 2, characterised in that: Single sliding column (13) outer side is provided with second spring (14), and one end of second spring (14) is connected with limiting plate (10), and the other end is connected with mounting bracket (11), and filter plate (15) is slidably connected in mounting bracket (11), and mounting bracket (11) one side is provided with clamping groove.

4. An exhaust device for a pneumatic actuator according to claim 1, characterized in that: The filter plate (15) both sides are symmetrically provided with third spring (16), and the filter plate (15) is provided with filter screen (12), and the third spring (16) end is provided with limiting ball (17) matched with clamping groove.

5. An exhaust device for a pneumatic actuator according to claim 1, characterized in that: The exhaust tank is provided with noise reduction assembly for silencing during exhaust process; The noise reduction assembly includes two groups of mounting plates (6) symmetrically arranged in exhaust tank, and the mounting plate (6) is provided with mounting frame (8).

6. An exhaust arrangement for a pneumatic actuator according to claim 5, wherein: The mounting frame (8) both sides are symmetrically provided with a plurality of first springs (9), and one end of first spring (9) is connected with mounting frame (8), and the other end is connected with mounting plate (6), and the mounting frame (8) is provided with porous sound-absorbing plate (7).

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