Two-way electromagnetic valve capable of exhausting air quickly

Abstract

The utility model relates to a quick exhaust two-way electromagnetic valve which comprises a valve body, a valve core, a valve core and a valve core, a cavity is formed in the valve body, an air inlet port and an air outlet port which are communicated with the side wall of the cavity are formed in the valve body, the air inlet port is connected with a compressed air source supply assembly, and the air outlet port is connected with a sorting air nozzle; and the exhaust assembly comprises an exhaust hole communicating with the cavity and a silencing part arranged at the outlet end of the exhaust hole, and the exhaust hole is always in a communicating state with the outside. The exhaust hole is formed in the valve body to communicate the cavity with the outside, so that when sorting is stopped, gas in the cavity can be quickly exhausted through the double exhaust channels formed by matching the sorting air nozzle and the exhaust hole, and the problem that the production process is affected due to slow exhaust only through the sorting air nozzle is solved, and meanwhile, due to the fact that the exhaust hole is formed in the side wall of the cavity, the production efficiency is improved. And most of the airflow still continuously flows to the sorting air tap along the original path, so that the working airflow of the sorting air tap is not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a two -way electromagnetic valve of quick exhaust belongs to electromagnetic valve technical field. BACKGROUND

[0002] The electromagnetic valve is a kind of equipment using electromagnetic force to control liquid, gas or powder flow, is widely used in industrial field. Its working principle is that the magnetic field generated by electromagnetic coil controls the opening and closing of iron core to control the flow of fluid. Electromagnetic valve has many types, such as DC electromagnetic valve, AC electromagnetic valve, pulse electromagnetic valve etc. Electromagnetic valve is widely used in water treatment, petrochemical industry, air conditioning etc. industry, can play the flow regulation, distribution, conversion.

[0003] In some passive element appearance visual detection production line, the detected material is often sorted by sorting air nozzle controlled by two-way electromagnetic valve, but because the size of the detected material is small, so the aperture of sorting air nozzle is also very small, leading to slow exhaust of sorting air nozzle when stopping sorting, affect production process, and noise is continuously generated in the exhaust process. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a two -way electromagnetic valve of quick exhaust to solve the above -mentioned problems.

[0005] To achieve the above object, the utility model provides the following technical scheme: a two -way electromagnetic valve of quick exhaust, the two -way electromagnetic valve includes:

[0006] Valve body, the chamber is formed in it, the valve body is formed with the air inlet port and the air outlet port that communicate the chamber, the air inlet port is connected with compressed air source supply assembly, the air outlet port is connected with sorting air nozzle;

[0007] Exhaust component, including the exhaust hole that communicates the side wall of the chamber and the silencer that is arranged at the outlet end of the exhaust hole, the exhaust hole is always in communication with the outside.

[0008] Further, the chamber valve body includes detachably connected upper valve body and lower valve body, the compressed air source supply assembly, the sorting air nozzle and the exhaust component are all arranged on the lower valve body.

[0009] Further, the chamber includes main chamber formed in the upper valve body and intake air path and sorting air path respectively used for connecting the compressed air source supply assembly and the sorting air nozzle formed in the lower valve body, the intake air path, the main chamber and the sorting air path are sequentially communicated.

[0010] Further, the exhaust hole is arranged on the side wall of the sorting air path along the radial direction, and the inner diameter of the exhaust hole is much smaller than the inner diameter of the sorting air path.

[0011] Further, the inner diameter of the exhaust hole is larger than the inner diameter of the air outlet of the sorting nozzle.

[0012] Further, the sound-damping member comprises a sound-damping cylinder and a nut arranged outside the sound-damping cylinder, and the sound-damping cylinder is threadedly connected with the valve body.

[0013] Further, the sound-damping cylinder comprises a shell and sound-absorbing cotton and sound-absorbing plates arranged in the shell in sequence along the direction.

[0014] Further, the sound-absorbing structure is a plurality of sound-absorbing holes arranged in the radial direction.

[0015] The beneficial effects of the utility model lie in that: the application is provided with an exhaust hole on the valve body to communicate the chamber with the outside, so that the gas in the chamber can be quickly discharged through the double exhaust passages formed by the cooperation of the sorting nozzle and the exhaust hole when the sorting is stopped, the problem that the production process is affected by the slow exhaust of the sorting nozzle is solved, and in addition, the sound-damping member arranged outside the exhaust hole can effectively reduce the noise generated by the exhaust hole during the sorting and the exhaust.

[0016] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification, and the following preferred embodiments of the utility model are described in detail in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of a two-way electromagnetic valve with quick exhaust shown in an embodiment of the application;

[0018] Figure 2 It is a front view structural schematic diagram of a two-way electromagnetic valve with quick exhaust shown in an embodiment of the application; Figure 1 It is an axial side structural schematic diagram of a two-way electromagnetic valve with quick exhaust. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model will be further described in detail in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0020] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. It does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0021] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0022] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, in the utility model, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium.

[0023] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0024] Please refer to Figures 1 to 2 The two-way electromagnetic valve of the embodiment of the application is shown, which comprises a valve body 10 and an exhaust assembly arranged on the valve body 10, so as to quickly exhaust the gas in the chamber of the valve body 10 when the two-way electromagnetic valve stops working.

[0025] A chamber is formed in the valve body 10, and an air inlet port and an air outlet port are formed in the valve body 10 and communicate with the chamber. The air inlet port is connected with the compressed air source supply assembly 30, and the air outlet port is connected with the sorting air nozzle 20.

[0026] The exhaust assembly includes an exhaust hole 41 communicating with the side wall of the chamber and a silencer arranged at the outlet end of the exhaust hole 41. The exhaust hole 41 is always in communication with the outside.

[0027] In an embodiment, the chamber valve body 10 includes an upper valve body 11 and a lower valve body 12 detachably connected. The compressed air source supply assembly 30, the sorting air nozzle 20 and the exhaust assembly are arranged on the lower valve body 12. A sealing ring is arranged between the upper valve body 11 and the lower valve body 12 to ensure that the upper valve body 11 and the lower valve body 12 are sealingly connected. In addition, by arranging the valve body 10 in two parts and arranging the compressed air source supply assembly 30, the sorting air nozzle 20 and the exhaust assembly on the lower valve body 12, when the valve body 10 is damaged, the corresponding valve body 10 can be replaced, solving the problem that when a component causes the valve body 10 to be damaged, the entire valve body 10 needs to be replaced.

[0028] In an embodiment, the chamber includes a main chamber formed in the upper valve body 11 and an air inlet gas path and a sorting gas path respectively used for connecting the compressed air source supply assembly 30 and the sorting air nozzle 20 formed in the lower valve body 12. The air inlet gas path, the main chamber and the sorting gas path are sequentially communicated. In this way, faster gas flow can be achieved, and the residence time of the gas in the system can be reduced, thereby improving the overall working efficiency.

[0029] In an embodiment, the exhaust hole 41 is arranged on the side wall of the sorting gas path in a radial direction, and the inner diameter of the exhaust hole 41 is much smaller than the inner diameter of the sorting gas path. Preferably, the inner diameter of the exhaust hole 41 is at most one tenth of the inner diameter of the sorting gas path. In this way, when the gas flows, most of the gas still flows to the sorting air nozzle 20 along the original gas flow path, so as to ensure that the sorting work of the sorting air nozzle 20 is normally carried out.

[0030] In an embodiment, the inner diameter of the exhaust hole 41 is greater than the inner diameter of the air outlet of the sorting air nozzle 20. In this way, the exhaust speed can be increased, and the influence on the production process can be reduced.

[0031] In an embodiment, the silencer includes a silencer cylinder 42 and a nut 43 arranged outside the silencer cylinder 42, and the silencer cylinder 42 is threadedly connected with the valve body 10. In this way, the silencer cylinder 42 can be quickly installed or removed by screwing the nut 43, and the installation and replacement thereof are facilitated.

[0032] In an embodiment, the muffler 42 comprises a shell and sound-absorbing cotton and sound-absorbing plates arranged in the shell in sequence, and sound-absorbing structures are arranged on the sound-absorbing plates. The sound-absorbing structures are a plurality of sound-absorbing holes arranged at intervals in the radial direction. The noise generated by the exhaust is conducted to the sound-absorbing cotton through the sound-absorbing holes, and then the propagation of the noise is reduced through the sound-absorbing cotton, so as to achieve the effect of noise reduction.

[0033] The application sets the exhaust hole on the valve body to communicate the chamber with the outside, so that when the sorting is stopped, the gas in the chamber can be quickly discharged through the double exhaust passages formed by the cooperation of the sorting nozzle and the exhaust hole, solving the problem that the slow exhaust of the sorting nozzle affects the production process. At the same time, since the exhaust hole is arranged on the side wall of the chamber, the gas leakage is very small, and most of the gas flow continues to flow to the sorting nozzle along the original path, which does not affect the working gas flow of the sorting nozzle. In addition, the sound-absorbing member arranged outside the exhaust hole can effectively reduce the noise generated by the exhaust hole during the sorting process and the exhaust process.

[0034] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the present application.

[0035] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A two-way electromagnetic valve of quick exhaust characterized in that, The two-way electromagnetic valve comprises: a valve body in which a chamber is formed, the valve body being provided with an air inlet port and an air outlet port communicating with the chamber, the air inlet port being connected with a compressed air supply assembly, and the air outlet port being connected with a sorting air nozzle; an exhaust assembly comprising an exhaust hole communicating with the side wall of the chamber and a silencer arranged at the outlet end of the exhaust hole, the exhaust hole being in communication with the outside at all times.

2. The fast venting two-way electromagnetic valve according to claim 1, wherein The chamber valve body comprises an upper valve body and a lower valve body which are detachably connected, the compressed air supply assembly, the sorting air nozzle and the exhaust assembly being arranged on the lower valve body.

3. The fast venting two-way electromagnetic valve according to claim 2, wherein The chamber comprises a main chamber formed in the upper valve body and an air inlet channel and a sorting air channel respectively used for connecting the compressed air supply assembly and the sorting air nozzle and formed in the lower valve body, the air inlet channel, the main chamber and the sorting air channel being in communication in sequence.

4. The fast venting two-way electromagnetic valve according to claim 3, wherein The exhaust hole is arranged on the side wall of the sorting air channel in a radial direction, and the inner diameter of the exhaust hole is much smaller than the inner diameter of the sorting air channel.

5. The fast venting two-way electromagnetic valve according to claim 4, wherein The inner diameter of the exhaust hole is greater than the inner diameter of the air outlet of the sorting air nozzle.

6. The fast venting two-way electromagnetic valve of claim 1, wherein, The silencer comprises a silencer cylinder and a nut arranged outside the silencer cylinder, and the silencer cylinder is threadedly connected with the valve body.

7. The fast venting two-way electromagnetic valve according to claim 6, wherein The silencer cylinder comprises a shell and sound-absorbing cotton and a sound insulation board arranged in the shell in sequence, and the sound insulation board is provided with sound-absorbing structures.

8. The fast venting two-way electromagnetic valve according to claim 7, wherein The sound-absorbing structures are a plurality of sound-absorbing holes arranged in a radial direction at intervals.

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