JPH0439439Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ejector device, and more specifically,
The side and top surfaces of the ejector device that do not touch each other on the premise that it will be made into a manifold in advance,
Alternatively, the present invention relates to an ejector device configured to have a replaceable or adjustable element disposed on the lower surface and to connect an ejector and ejector peripheral equipment.

Ejector devices are devices that suck air to create a vacuum, and the scope of their use has been expanding in recent years. In this case, the ejector is rarely used alone, and its peripheral equipment includes, for example, directional control valves, pressure control valves, flow rate control valves, check valves,
A suction filter, muffler, pressure switch, etc. are attached.

However, when various devices are attached in this way,
The problem is that the ejector device is extremely large, occupies a large area within the factory, is inconvenient for users, and is expensive. Moreover, when attempting to miniaturize pneumatic equipment such as solenoid valve manifolds by arranging a large number of similar devices in series, and to further enhance its functions, ejector devices are attached in various ways as described above. It has been pointed out that there is an inconvenience in that it cannot be made into a manifold due to the peripheral equipment involved.

Furthermore, since the peripheral equipment is not installed in such a way as to be able to cope with various assumed usage conditions, the work of adjusting, operating, or replacing the equipment becomes complicated, and therefore, the ejector according to the prior art It was pointed out that the device could not meet the demand for a manifold system.

The present invention has been made to overcome the above-mentioned disadvantages, and the ejector body and the peripheral equipment attached thereto are configured in the shape of a flat rectangular parallelepiped or rectangular body, and the replacement element or adjustment element is configured in the shape of a manifold. When the ejector is installed in series, it is arranged on the narrow top, bottom, or side surface that is exposed to the outside, and air is sent to these exchange elements or adjustment elements through the air passage provided in the ejector body. It is an object of the present invention to provide an ejector device having such a configuration that facilitates the adjustment of various devices, is suitable for downsizing, and is easy to maintain.

In order to achieve the above object, the present invention defines an air flow path, an air supply port and a vacuum port communicating with the air flow path inside a flat and substantially rectangular parallelepiped body, and the width of the body is An ejector body having at least the same width as the narrow side wall is disposed in the narrow side wall, and the ejector is connected to a fluid passage of ancillary equipment such as a vacuum switch used for the ejector body. An air flow path is defined in the main body, and the accompanying equipment is arranged so as to be adjustable from the direction of the narrow side wall.

Next, preferred embodiments of the ejector device according to the present invention will be described in detail with reference to the accompanying drawings.

In FIGS. 1a to 1c, reference numeral 2 indicates an ejector device, and this ejector device 2 includes a switching valve 4 as a control valve, an ejector main body 6, a muffler 8, a check valve 10, as shown in FIG. A safety valve 12 which is a pressure control valve, and a variable throttle valve 1 which is a flow rate control valve.
4. Vacuum switch 16, suction filter 18
Consists of etc. In this case, the safety valve 12, the variable throttle valve 14, and the vacuum switch 16 function as equipment attached to the ejector body 6. Substantially, the ejector device 2 further includes a manifold 20, a mounting member 22, a wiring connector 24,
Wiring lead wires 26a, 26b, 28a, 28
b, wiring connector 30, wiring lead wire 32
a, 32b, etc.

That is, the switching valve 4 has three switching valve components 3.
4a, 34b, and 34c, among which component 34a is made of a block body with an internal air passage, component 34b has a built-in switching valve body (not shown), and component 34b has a built-in switching valve main body (not shown).
4c has a solenoid installed inside. On the other hand, a manual switch 36 for valve operation is provided on the upper surface of the element 34b that constitutes the switching valve 4, and lead wires 26a, 2 for wiring are provided on the upper surface of the component 34c.
A wiring connector 24 to which 6b is connected is attached. Then, the screws 40a and 40b are screwed into the component 34a through the recesses 38a and 38b carved in the component 34b, thereby integrating the component 34b and the component 34a. Further, recesses 42a, 4 carved in the component 34c
By screwing the screws 44a and 44b from 2b into the component 34b, the component 34c and the component 34b are integrated. On the other hand, recesses 46a and 46b are formed in the component 34a, and the recesses 46
The component 34a is secured to the manifold 20 by screwing the screws 48a and 48b from a and 46b to the manifold 20 via the seal member 50. On the other upper surface of the manifold 20, there are recesses 52a, 5 carved in the mounting member 22.
2b to the screws 54a, 54b from the sealing member 56,
The ejector body 6 and the seal member 58 are sequentially penetrated and screwed onto the manifold 20. As a result, the ejector body 6 and the mounting member 22 are integrated with the manifold 20. Further, the screws 62a, 6 are inserted from the recesses 60a, 60b formed in the variable throttle valve 14.
2b through the seal member 64 and screwed onto the mounting member 22, the variable throttle valve 14
is attached to this mounting member 22. A flow rate adjustment bolt 66 is provided on the upper surface of the variable throttle valve 14, and the opening degree of the valve body is adjusted from above using this bolt 66. Next, from the recesses 68a, 68b carved in the safety valve 1, the screws 70a,
70b is penetrated through the seal member 72 and screwed onto the variable throttle valve 14, thereby integrating the safety valve 12 and the variable throttle valve 14. In this case as well, a manual switch 74 for valve operation is provided on the top surface of the safety valve 12, and the configuration is such that the safety valve can be operated from the top surface. Then, the wiring connector 30 to which the lead wires 32a and 32b are connected is attached. The vacuum switch 16 is the first
It consists of a component 76a and a second component 76b, and the second component 76b has lead wires 28a,
28b is connected, and furthermore, a display section 78 is provided on the upper surface of the component 76b. The second component 76b is screwed by passing screws 82a, 82b through recesses 80a, 80b cut into the second component 76b up to the first component 76a, thereby attaching the second component 76b to the first component 76a. 1 component 76
It sticks to a. Further, in the first component 76a, the screws 84a and 84b are screwed onto the mounting member 22 through the seal member 64, thereby integrating the first component 76a and the mounting member 22.

On the other hand, the manifold 20 is provided with an air supply port 86, an exhaust port 88, a lid 90, and a vacuum port 92 in the longitudinal direction thereof, and through holes 94a and 94b are provided in the horizontal direction. A silencer 8 is connected to the exhaust port 88, and a lid 9 is connected to the exhaust port 88.
0, the recesses 96a and 96b are connected to the manifold 20.
Screw into the screw hole to integrate with it. As can be easily understood from the figure, the check valve 10 and the suction filter 18 are positioned inside the manifold 20, and the check valve 10 can be removed from the upper surface of the manifold 20 by removing the ejector body 6 and the mounting member 22. It is removable, and the suction filter 18 can be replaced by removing the lid 90.

Next, the flow of air through the pipes provided inside the ejector device 2 will be schematically explained in FIG. 3.

First, the air supplied to the air supply port 86 is branched into two directions inside the manifold 20, one of which is supplied to the switching valve 4. When air is supplied from the switching valve 4 to the ejector body 6 by opening and closing the switching valve 4, the suction filter 18,
Fluid is sucked into the ejector body 6 from the vacuum port 92 via the check valve 10, and the sucked gas and the air supplied to the ejector body 6 from the switching valve 4 are combined into a silencer 8 connected to the exhaust port 88. After the sound is muffled, it is exhausted to the outside. Further, the other air branched and supplied from the air supply port 86 reaches the safety valve 12 via the air flow path defined in the ejector body 6, and the flow rate is adjusted by the variable throttle valve 14 via the safety valve 12. Thereafter, it is supplied to a conduit connected to a suction filter 18. That is, by adjusting the flow rate of the variable throttle valve 14, it is possible to increase or decrease the vacuum pressure on the suction mechanism side. Note that the outlet side pipe line of the suction filter 18 is connected to the vacuum switch 16 via an air passage defined in the ejector body 6.
The vacuum pressure on the suction mechanism side is adjusted and this state is shown on the display section 78.

Next, a fixing member used when the ejector devices configured as described above are arranged in series to form a manifold will be described.

In FIG. 4, reference numeral 100 indicates an example of a fixing member for fixing the ejector device 2,
This fixing member 100 includes plates 102a, 10
2b, tie rods 104a, 104b and nuts 1 screwed onto the tie rods 104a, 104b.
It consists of 06a and 106b. plate 10
2a and 102b have shapes similar to both side surfaces of the manifold 20, and similar through holes 10 corresponding to the through holes 94a and 94b of the manifold 20.
8a, 108b and 108c, 108d are drilled, respectively.

When fixing the ejector devices 2 with this fixing member 100, a predetermined number of ejector devices 2 are arranged between opposing surfaces of the plates 102a and 102b. As a result, the through-hole 94a of each ejector device 2 and the through-holes 108a, 108c of the plates 102a, 102b align to form one long through-hole, and similarly the remaining through-holes 94b, 108
b and 108d also form one long through hole. Then, insert the tie rods 104a and 104b into the two long through holes, and then
A predetermined number of ejector devices are fixed by screwing the nuts 106a, 106b onto the threaded portions 110a, 110b of the ejectors a, 104b.

The ejector device and the fixing member for the ejector device according to the present invention are basically constructed as described above.Next, the effects when using the device will be explained.

For convenience of explanation, the silencer 8, lid 90, vacuum port 92, and lead wire 2 of the ejector device 2 are shown below.
8a, 28b, etc. is the front surface 112 of the ejector device 2, and the surface shown in FIG. 1c is the rear surface 11.
4, display section 78, flow rate adjustment bolt 66, manual switches 36, 74, wiring connector 2
4, 30, etc. is the upper surface 116, and the surface not shown opposite to this upper surface 116 is the lower surface,
The surface shown in FIG. 1b is referred to as the left side surface 118, and the surface not shown opposite to this left side surface 118 is referred to as the right side surface.

The screws 40a, 40b, etc. for fixing each device and parts constituting the ejector device 2 are all directed from the top surface 116 to the bottom surface, and from the front surface 112 to the rear surface 11.
It is screwed in any of four directions, from the back surface 114 to the front surface 112 direction. Therefore, in order to rotate the screws 40a, 40b, etc. using a normal tool, it is sufficient to secure a space corresponding to the three surfaces of the ejector device 2, namely the front 112, back 114, and top surface 116. Safety valve 12, variable throttle valve 14, vacuum switch 16, mounting member 2
2. The ejector body 6, check valve 10, switching valve 4, lid 90, etc. are mounted on the front 112, back 114, and top 1.
It can be easily attached and detached from each of the 16 directions. On the other hand, in the vacuum switch 16, only the component 76b can be attached or detached by tightening and loosening the screws 82a and 82b, and in the switching valve 4, only the component 34c can be attached or detached by tightening and loosening the screws 44a and 44b. , screws 40a, 40b
It is also possible to attach and detach component 34b by loosening. Furthermore, by securing the required space on the front 112, back 114, and top surface 116 of the ejector device 2 as described above, the display section 78 can be checked, the flow rate adjustment bolt 66, the manual switch 36,
74, and the wiring connectors 24 and 30, the silencer 8, and the suction filter 18 can be easily attached and detached.

On the other hand, since there are no elements that require adjustment or replacement on the other surfaces of the ejector device 2, that is, the right side surface, the left side surface 118, and the bottom surface, the right side surface, the left side surface 118, and the bottom surface can be freely utilized.
Therefore, when using the ejector device 2, either the right side, the left side 118, the bottom surface, or
Even in a narrow installation location where there is not enough space to accommodate everything, it is easy to adjust, replace, attach and detach each component as described above, check the display section 78, operate the manual switches 36 and 74, etc. It can be done.

Further, when a plurality of ejector devices 2 are arranged in parallel to form a manifold, it is possible to use a simple structure like the fixing member 100 to join the side surfaces of the respective ejector devices 2 to each other. Moreover, even in such a case, it is possible to easily perform the various tasks and operations described above without any inconvenience. Moreover, in such a setting, there is no space between the ejector devices 2, and as a result, since a large number of ejector devices 2 are installed in a limited space, the space occupied by the ejector devices 2 can be significantly reduced. Furthermore, when fixing the ejector device 2 to a wall surface or a vertical plate, the through holes 94a and 94b
A screw hole with an appropriate diameter is drilled in the wall surface or at a position in the plate corresponding to the through hole 94a, and two tie rods to be screwed into the screw hole are fitted with appropriate sears, and then the through holes 94a, 94b,
We need to tighten this up. In addition, in such a case,
If the length of the tie rod is appropriately selected depending on the number of ejector devices 2, the number of ejector devices 2 can be easily changed.

In this way, the ejector device according to the present invention can be used not only when used alone, but also when a plurality of ejector devices are used side by side with the sides of each ejector device in contact with each other. It is easy to check the equipment, operate the switches, etc., and each device can be installed and used side by side. Therefore, it is easy to form a plurality of ejector devices into a manifold, and a limited space can be used effectively.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments, and various improvements and design changes can be made without departing from the gist of the present invention. Of course.

[Brief explanation of the drawing]

FIG. 1a is a schematic perspective view of the ejector device according to the present invention, FIG. 1b is a side view of the ejector device according to the present invention, and FIG. 1c is a schematic view of the ejector device according to the present invention from the air supply port side. A front view, FIG. 2 is a configuration diagram of the air pipe line of the ejector device according to the present invention, and FIG.
FIG. 4 is a schematic explanatory diagram showing the flow of air within the ejector device according to the present invention, and FIG. 4 is an exploded schematic perspective view of an example of a fixing member when the ejector device according to the present invention is made into a manifold. 2... Ejector device, 4... Switching valve, 6... Ejector body, 8... Silencer, 10... Check valve, 12... Safety valve, 14... Variable throttle valve, 16
...Vacuum switch, 18...Suction filter, 20...Manifold, 22...Mounting member, 34a to 34c...Switching valve component, 36...
...Manual switch, 66...Flow rate adjustment bolt, 74...Manual switch, 76a, 76
b...Vacuum switch component, 78...Display section,
86...Air supply port, 88...Exhaust port,
90...Lid, 92...Vacuum port, 100...Fixing member, 102a, 102b...Plate, 1
04a, 104b...Tie rod, 106a, 1
06b...Natsuto.

Claims (1)

[Claims for Utility Model Registration] (1) An air flow path, an air supply port and a vacuum port communicating with the air flow path are defined inside a flat and substantially rectangular parallelepiped body, and the body has a narrow width. An ejector body having at least the same width as the side wall is disposed on a side wall, and the ejector body is connected to a fluid passage of ancillary equipment such as a vacuum switch used for the ejector body. An ejector device characterized in that an air flow path is defined in the ejector device, and the accompanying equipment is arranged so as to be adjustable from the direction of the narrow side wall portion. (2) Utility Model Registration Scope of Claims In the apparatus described in claim 1, the accompanying equipment includes at least a vacuum switch and a flow rate regulating valve, and is capable of controlling the pressure setting of the vacuum switch and adjusting the valve body of each of the flow regulating valves. An ejector device that is arranged so as to be ejected from the direction of a narrow side wall.