CN109154388B - Gasket and valve device - Google Patents
Gasket and valve device Download PDFInfo
- Publication number
- CN109154388B CN109154388B CN201780029086.2A CN201780029086A CN109154388B CN 109154388 B CN109154388 B CN 109154388B CN 201780029086 A CN201780029086 A CN 201780029086A CN 109154388 B CN109154388 B CN 109154388B
- Authority
- CN
- China
- Prior art keywords
- solenoid valve
- gasket
- valve
- mounting member
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Valve Housings (AREA)
- Gasket Seals (AREA)
Abstract
The gasket (40) comprises: a frame (44) sandwiched between the solenoid valve (30) and the relay valve (21); and a flow path forming section (42) which is provided on the inner side of the frame section (44) and seals between the solenoid valve (30) and the relay valve (21) to form a flow path (41) which communicates between the solenoid valve connection port (32) of the solenoid valve (30) and the relay valve connection port (22) of the relay valve (21). When the gasket (40) is sandwiched between the solenoid valve (30) and the relay valve (21), a vibration damping space (43) for damping vibration generated by the solenoid valve (30) is formed between the frame portion (44) and the flow passage forming portion (42).
Description
Technical Field
The present invention relates to a gasket and a valve device having the gasket.
Background
As described in patent document 1, a gasket made of a material having elasticity such as synthetic rubber is provided between the solenoid valve and the mount base. The gasket has a flat vibration damping portion for reducing the operating sound of the solenoid valve. Since the vibration damping portion is located between the solenoid valve and the mount table, the solenoid valve and the mount table are not in direct contact over a wide plane. Further, since the vibration damping portion damps vibration caused by frequent opening and closing of the electromagnetic valve, propagation of vibration from the electromagnetic valve to the mount table is suppressed.
Patent document 1: japanese Utility model registration No. 2589614
Disclosure of Invention
Problems to be solved by the invention
However, although the gasket described in patent document 1 has a vibration damping portion, since the gasket is in contact with the solenoid valve and the mount base over a wide surface, vibration from the solenoid valve propagates to the mount base via the gasket. Further, in order to secure the sealing surface pressure between the solenoid valve and the mount table, the force of sandwiching the gasket may be increased by strongly fastening the solenoid valve and the mount table. In this case, since the flat plate-shaped vibration damping portion of the gasket is crushed and hardened, the vibration from the solenoid valve is less damped by the gasket, and the vibration is easily propagated to the mounting table. The mounting member to which the solenoid valve is mounted is not limited to the mounting base, and other members such as the relay valve have the same problem.
The present invention has been made in view of such circumstances, and an object thereof is to provide a gasket capable of suppressing propagation of vibration from an electromagnetic valve to a mounting member, and a valve device having the gasket.
Means for solving the problems
A gasket that solves the above-described problems is a gasket that is provided between a solenoid valve and a mounting member to which the solenoid valve is mounted, the gasket including: a frame portion sandwiched between the solenoid valve and the mounting member; and a flow path forming portion that is provided inside the frame portion, seals a space between the solenoid valve and the mounting member, and forms a flow path that communicates a fluid port of the solenoid valve and a fluid port of the mounting member, and when the gasket is sandwiched between the solenoid valve and the mounting member, a vibration damping space that damps vibration generated by the solenoid valve is formed between the frame portion and the flow path forming portion.
According to the above configuration, when the gasket is provided between the solenoid valve and the mounting member, the fluid port of the solenoid valve and the fluid port of the mounting member communicate with each other through the flow path forming portion to form the flow path. Further, since the frame portion is sandwiched between the solenoid valve and the mounting member so that the solenoid valve does not directly contact the mounting member, the vibration generated by the solenoid valve is not directly transmitted to the mounting member. In addition, since a vibration attenuation space exists between the solenoid valve and the mounting member, vibration that attempts to propagate from the solenoid valve to the mounting member is attenuated in this vibration attenuation space. As a result, propagation of vibration from the electromagnetic valve to the mounting member can be suppressed. Since the vibration damping space is formed even when the frame portion is crushed due to a large sandwiching force between the solenoid valve and the mounting member, even when the solenoid valve and the mounting member are strongly fastened to ensure the sealing surface pressure, propagation of vibration can be reliably suppressed.
In the gasket, it is preferable that the gasket includes a plate portion connecting the frame portion and the flow path forming portion, and the vibration damping space is formed at least one of between the electromagnetic valve and the plate portion and between the mounting member and the plate portion.
According to the above configuration, the vibration generated by the solenoid valve can be damped by the plate portion in addition to the vibration damping space. In particular, in the case where the vibration attenuation space is provided between the electromagnetic valve and the plate portion, the vibration that attempts to propagate from the electromagnetic valve to the mounting member using air as a medium, for example, a sound that is vibration of an audible frequency, is shielded by the plate portion.
In the above gasket, it is preferable that the plate portion has a thick portion having a thickness larger than other portions of the plate portion.
According to the above configuration, even when the sandwiching force is increased when the gasket is provided and sandwiched between the solenoid valve and the mounting member, the vibration damping space is ensured between the solenoid valve and the mounting member at a portion other than the thick portion of the plate portion by the thick portion of the plate portion coming into contact with the solenoid valve and the mounting member, and therefore, the function of the vibration damping space can be maintained.
In the gasket, it is preferable that the vibration damping space includes a space at a position closer to the solenoid valve than the plate portion and a space at a position closer to the mounting member than the plate portion.
According to the above configuration, the vibration generated by the solenoid valve is first attenuated in the space on the solenoid valve side. Then, the vibration, such as sound, which attempts to propagate from the space on the solenoid valve side to the space on the mounting member side is shielded by the plate portion. Further, even if the vibration is transmitted through the plate portion, the transmitted vibration is further attenuated in the space on the mounting member side. Therefore, propagation of vibration generated by the solenoid valve to the mounting member can be further suppressed.
In the above-described gasket, it is preferable that a sound absorbing material be disposed in the vibration damping space.
According to the above configuration, since the vibration, for example, the sound, propagating from the solenoid valve to the vibration attenuation space is absorbed by the sound absorbing material, propagation of the vibration generated by the solenoid valve to the mounting member can be further suppressed.
In the gasket, it is preferable that the frame portion has a communication portion communicating an inner side and an outer side of the frame portion.
According to the above configuration, the fluid leaking from the flow path forming portion to the vibration damping space due to deterioration of the flow path forming portion, deterioration of surface roughness of the seal portion, adhesion of foreign matter, or the like can be discharged to the outside of the frame portion through the communication portion. Therefore, the following can be prevented: the frame portion is deformed by a fluid such as compressed air leaking into the vibration damping space, and the solenoid valve is loosely fixed to the mounting member. Further, the leakage of the fluid can be checked by discharging the fluid leaking from the flow path forming portion from the communication portion.
A valve device that solves the above problem includes a solenoid valve, a mounting member, and a gasket provided between the solenoid valve and the mounting member, the gasket being any one of the above gaskets.
According to the above configuration, the gasket is provided between the solenoid valve and the mounting member, and the fluid port of the solenoid valve and the fluid port of the mounting member communicate with each other through the flow path forming portion to form the flow path. Further, since the frame portion is sandwiched between the solenoid valve and the mounting member and the solenoid valve is not in direct contact with the mounting member, the vibration generated by the solenoid valve is not directly transmitted to the mounting member. Further, even if the sandwiching force becomes large and the frame portion is squashed, since the vibration damping space exists between the electromagnetic valve and the mounting member, the vibration trying to propagate from the electromagnetic valve to the mounting member is damped in this vibration damping space. As a result, propagation of vibration from the electromagnetic valve to the mounting member can be suppressed.
In the valve device, it is preferable that a restricting portion that restricts excessive squashing of the gasket by coming into contact with the mounting member is provided in a part of an end surface of the solenoid valve that faces the mounting member.
When the gasket is excessively crushed, the sealing performance is prematurely lost due to breakage of the flow path forming portion. Therefore, according to the above configuration, excessive squashing of the gasket can be suppressed by the restricting portion provided in the electromagnetic valve, and propagation of vibration from the electromagnetic valve to the mounting member can be suppressed while avoiding premature loss of sealing performance.
In the valve device, it is preferable that a restricting portion that restricts excessive squashing of the gasket by coming into contact with the solenoid valve is provided in a part of an end surface of the mounting member that faces the solenoid valve.
According to the above configuration, as in the case of the restricting portion provided in the electromagnetic valve, propagation of vibration from the electromagnetic valve to the mounting member can be suppressed while avoiding premature loss of sealing performance.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the aspects of the present invention, propagation of vibration from the electromagnetic valve to the mounting member can be suppressed. Other aspects and advantages of the present invention will become apparent from the following description, taken in conjunction with the accompanying drawings, which illustrate examples of the technical ideas of the present invention.
Drawings
Fig. 1 is a front view, partially in section, showing a schematic structure of a valve device in which a gasket is provided between a solenoid valve and a mounting member.
Fig. 2 is a plan view showing the structure of the upper surface of the solenoid valve side surface as a spacer.
Fig. 3 is a bottom view showing the structure of the lower surface of the spacer on the side of the mounting member.
Fig. 4 is a sectional view taken along 4-4 of fig. 2 showing the structure of the gasket.
Fig. 5 is a front view showing a schematic configuration of a modified example of the valve device provided with the gasket.
Fig. 6 is a sectional view showing a structure of a modified example of the gasket.
Fig. 7 is a sectional view showing a structure of a modified example of the gasket.
Fig. 8 is a sectional view showing a structure of a modified example of the gasket.
Fig. 9 is a sectional view showing a structure of a modified example of the gasket.
Fig. 10 is a sectional view showing a structure of a modified example of the gasket.
Fig. 11 is a plan view showing a structure of a modified example of the gasket.
Fig. 12 is a cross-sectional view taken along 12-12 in fig. 11, showing a structure of a modified example of the gasket.
Fig. 13 is a sectional view showing a structure of a modified example of the gasket.
Fig. 14 is a sectional view showing a structure of a modified example of the gasket.
Detailed Description
An embodiment of a valve device provided with a gasket will be described below with reference to fig. 1 to 4.
As shown in fig. 1, the valve device 20 is a control valve that performs pressure control of compressed air. The valve device 20 has an electromagnetic valve 30 and a relay valve 21 as a mounting member to which the electromagnetic valve 30 is mounted. A gasket 40 is provided between the solenoid valve 30 and the relay valve 21. The solenoid valve 30 is fastened and fixed to the relay valve 21 by a screw 31.
The solenoid valve 30 is provided with 3 fluid ports, specifically, 3 solenoid valve connection ports 32 for supplying and discharging compressed air. The solenoid valve 30 has a plurality of valve elements 33 that independently open and close flow paths connected to the two solenoid valve connection ports 32. The solenoid valve 30 has a plurality of solenoids 34 that drive a plurality of valve bodies 33, respectively. The solenoid valve 30 includes a spring (not shown) that biases the valve body 33 in a direction opposite to the suction direction of the solenoid 34. The solenoid valve 30 moves the valve body 33 by excitation and release of the excitation of the solenoid 34, and performs pressure control by controlling the flow rate of each solenoid valve connection port 32. In the pressure control using the solenoid valve 30, the valve body 33 is moved at a high speed in order to open and close the flow path at a high speed. When the valve body collides with the valve seat, the striking sound is generated and propagated as high-frequency vibration.
The relay valve 21 is provided with 3 fluid ports, specifically, 3 relay valve connection ports 22 for supplying and discharging compressed air. These relay valve connection ports 22 are respectively communicated with 3 solenoid valve connection ports 32 provided in the solenoid valve 30 via gaskets 40. The relay valve connection port 22 corresponds to a fluid port of the relay valve 21.
The gasket 40 is formed of a single material having elasticity such as synthetic rubber. The gasket 40 has a flow path forming portion 42 that connects the solenoid valve connection port 32 provided in the solenoid valve 30 and the relay valve connection port 22 provided in the relay valve 21. The flow path forming unit 42 forms the flow path 41 between the solenoid valve connection port 32 provided in the solenoid valve 30 and the relay valve connection port 22 provided in the relay valve 21. A housing portion 32a for housing the flow path forming portion 42 is provided at an opening edge of the solenoid valve connection port 32 of the solenoid valve 30. The housing 32a is formed as an enlarged diameter opening edge of the solenoid valve connection port 32. Each flow path forming portion 42 is cylindrical and fitted in and attached to a housing portion 32a formed in the solenoid valve connection port 32 of the solenoid valve 30.
As shown in fig. 2 to 4, the gasket 40 includes: a frame portion 44 sandwiched between the electromagnetic valve 30 and the relay valve 21; and a flow path forming unit 42 provided inside the frame 44, sealing a space between the solenoid valve 30 and the relay valve 21, and forming a flow path for communicating the solenoid valve connection port 32 of the solenoid valve 30 with the relay valve connection port 22 of the relay valve 21. The frame 44 is provided over the outer periphery of the gasket 40. Both surfaces of the frame 44 are in contact with the electromagnetic valve 30 and the relay valve 21, respectively. The gasket 40 also forms a vibration damping space 43 between the frame 44 and the flow passage forming portion 42, which damps vibration generated by the solenoid valve 30. Therefore, as shown in fig. 1, the vibration damping space 43 is a space surrounded by the inner wall surface 44a of the frame 44, the outer wall surface 42a of the flow passage forming portion 42, the end surface (also referred to as a mating surface) of the electromagnetic valve 30, and the end surface (also referred to as a mating surface) of the relay valve 21. As shown in fig. 2 and 3, in the present embodiment, two through holes 48 through which the screws 31 for fixing the solenoid valve 30 to the relay valve 21 are inserted are formed in the frame portion 44, and 1 through hole 49 for positioning the gasket 40 with respect to the solenoid valve 30 or the relay valve 21 is formed at a position apart from the through holes 48.
The gasket 40 includes a plate portion 45, which can be, for example, a flat plate, connecting the frame portion 44 and the flow path forming portion 42. The plate portion 45 is integrally formed with the flow passage forming portion 42 and the frame portion 44. In the present embodiment, the plate portion 45 is provided to partition the vibration damping space 43 in cooperation with the flow passage forming portion 42 and the frame portion 44. Therefore, the flow passage forming portion 42 is supported and positioned by the plate portion 45 even if it is separated from the frame portion 44.
The vibration damping space 43 includes a solenoid valve side space 43a located closer to the solenoid valve 30 than the plate portion 45 and a relay valve side space 43b located closer to the relay valve 21 than the plate portion 45. The plate portion 45 is provided so as to divide the vibration damping space 43 into the solenoid valve side space 43a and the relay valve side space 43 b. In other words, the plate portion 45 is formed so as to extend inward from the central portion of the frame portion 44 in the thickness direction of the gasket 40. The plate portion 45 is connected to a position different from the central portion of the flow path forming portion 42 in the thickness direction of the gasket 40. The flow path forming portion 42 can protrude at different heights on the 1 st side and the 2 nd side (for example, upper and lower sides in fig. 4) of the gasket 40. In the present embodiment, the flow passage forming portion 42 has a larger protruding height toward the solenoid valve than the frame portion 44.
The plate portion 45 has a hemispherical projection 46 as a thick portion having a thickness larger than the other portions of the plate portion 45. For example, 6 projections 46 are provided on each of the surfaces of the plate portion 45 facing the solenoid valve 30 and the relay valve 21. On each surface of the plate portion 45, the projection 46 is disposed between the flow passage forming portion 42 and the frame portion 44. The height of the projection 46 from the plate portion 45 is the same as the height of the frame portion 44 from the plate portion 45. Therefore, the distance between the plate portion 45 and the end surface of the solenoid valve 30 and the distance between the plate portion 45 and the end surface of the relay valve 21 can be maintained by the protrusion 46 of the plate portion 45, and the vibration damping space 43 can be secured.
The frame 44 has a communication portion 47 that communicates the inside and the outside of the frame 44. The communication portion 47 connects the vibration damping space 43 to the atmosphere outside the gasket 40. The communication portions 47 are provided on both surfaces of the gasket 40. When compressed air leaks from the flow path forming portion 42 to the vibration damping space 43 due to deterioration of the flow path forming portion 42, deterioration of surface roughness of the sealed portion, adhesion of foreign matter, or the like, the communication portion 47 can discharge the leaked compressed air to the outside of the frame portion 44 through the communication portion 47.
Next, the operation of the gasket 40 configured as described above will be described with reference to fig. 1 to 4.
When the valve device 20 is operated and vibration is generated from the solenoid valve 30 in accordance with the reciprocating movement of the valve element 33 of the solenoid valve 30, the propagation of the vibration is suppressed by the spacer 40. Specifically, the solenoid valve 30 and the relay valve 21 are connected with the frame 44 of the gasket 40 sandwiched and held between the edge of the end face of the solenoid valve 30 and the edge of the end face of the relay valve 21. The gap W between the solenoid valve 30 and the relay valve 21 is set to be equal to the thickness T of the frame 44 of the gasket 40. In other words, when the sandwiching force between the solenoid valve 30 and the relay valve 21 increases, the thickness T of the frame 44 of the gasket 40 is compressed.
The solenoid valve connection port 32 of the solenoid valve 30 and the relay valve connection port 22 of the relay valve 21 communicate with each other through the flow path forming portion 42 of the gasket 40. When the sandwiching force between the solenoid valve 30 and the relay valve 21 increases, the flow passage forming portion 42 of the gasket 40 is compressed.
Further, a solenoid valve side space 43a, a plate portion 45, and a relay valve side space 43b are provided in this order from the solenoid valve 30 side in the end surface of the solenoid valve 30 and the end surface of the relay valve 21, except for the edge portion, the solenoid valve connection port 32, and the relay valve connection port 22. Therefore, the vibration generated by the solenoid valve 30 propagates through the solenoid valve side space 43a, the plate portion 45, and the relay valve side space 43b, is attenuated, and propagates to the relay valve 21.
Further, projections 46 are provided on both surfaces of the plate portion 45. When the sandwiching force between the solenoid valve 30 and the relay valve 21 increases, the projection 46 of the gasket 40 is compressed. Therefore, the plate portion 45 can be prevented from being in surface contact with the solenoid valve 30 or the relay valve 21, and the solenoid valve side space 43a and the relay valve side space 43b can be maintained. Further, the attenuation of the solenoid valve side space 43a and the relay valve side space 43b can be maintained.
Further, when the flow path of the electromagnetic valve 30 or the relay valve 21 is clogged with foreign matter, the compressed air may flow into the electromagnetic valve side space 43a and the relay valve side space 43b from the electromagnetic valve connection port 32, the relay valve connection port 22, or the flow path forming portion 42. At this time, the compressed air is discharged to the outside from the communication portion 47 provided in the frame portion 44 of the gasket 40. Therefore, it is possible to prevent the frame 44 from being excessively loaded by the inflow of compressed air into the solenoid valve side space 43a and the relay valve side space 43b provided in the gasket 40.
Thus, the vibration damping space 43 surrounded by the frame 44 is formed by the gasket 40, and thus a portion where the gasket 40 does not directly contact the end surface of the solenoid valve 30 and the end surface of the relay valve 21 can be provided. Therefore, even if the sandwiching force between the solenoid valve 30 and the relay valve 21 is increased, propagation of vibration generated by the solenoid valve 30 to the relay valve 21 can be suppressed.
As described above, the present embodiment can achieve the following effects.
(1) When the gasket 40 is provided between the solenoid valve 30 and the relay valve 21, the solenoid valve connection port 32 and the relay valve connection port 22 communicate with each other by the flow path forming portion 42 to form the flow path 41. Further, since the frame portion 44 is sandwiched between the solenoid valve 30 and the relay valve 21, and the solenoid valve 30 and the relay valve 21 are not in direct contact with each other, the vibration generated by the solenoid valve 30 is not directly transmitted to the relay valve 21. Therefore, since the vibration attenuation space 43 exists between the electromagnetic valve 30 and the relay valve 21, the vibration trying to propagate from the electromagnetic valve 30 to the relay valve 21 is attenuated in this vibration attenuation space 43. As a result, propagation of vibration from the electromagnetic valve 30 to the relay valve 21 can be suppressed. Since this vibration damping space 43 is formed even if the frame portion 44 is crushed due to a large sandwiching force between the solenoid valve 30 and the relay valve 21, propagation of vibration can be reliably suppressed even when the solenoid valve 30 and the relay valve 21 are strongly fastened to each other in order to secure the sealing surface pressure.
(2) The vibration generated by the solenoid valve 30 can be damped by the plate portion 45.
(3) Even if the sandwiching force is increased when the solenoid valve 30 and the relay valve 21 are interposed, the vibration damping space 43 is secured between the other part of the plate portion 45 and the solenoid valve 30 and the relay valve 21 by the contact of the projection 46 of the plate portion 45 with the solenoid valve 30 and the relay valve 21, and therefore the function of the vibration damping space 43 can be maintained.
(4) Vibration damping space 43 of spacer 40 is divided into solenoid valve side space 43a and relay valve side space 43b with plate portion 45 as a boundary. Thus, the vibration generated by the solenoid valve 30 is first attenuated in the solenoid valve side space 43 a. Then, the vibration, for example, sound, which attempts to propagate from the solenoid valve side space 43a to the relay valve side space 43b is shielded by the plate portion 45. Even if the vibration passes through the plate portion 45, the transmitted vibration is further attenuated in the relay valve side space 43 b. Therefore, propagation of vibration generated by the solenoid valve 30 to the relay valve 21 can be further suppressed.
(5) The compressed air leaking from the flow path forming portion 42 to the vibration damping space 43 due to deterioration of the flow path forming portion 42, deterioration of surface roughness of the sealed portion, adhesion of foreign matter, or the like can be discharged to the outside of the frame portion 44 through the communication portion 47. Therefore, the following can be prevented: the frame 44 is deformed by the compressed air leaking into the vibration damping space 43, and the fixation of the solenoid valve 30 to the relay valve 21 is loosened. Further, the compressed air leaking from the flow path forming portion 42 is discharged from the communication portion 47, and the leakage of the compressed air can be confirmed.
The above embodiment can be implemented by appropriately changing the above embodiment as follows.
In the above configuration, a restriction portion may be provided in a part of an end surface of the solenoid valve 30 facing the relay valve 21, and the restriction portion may be in contact with the relay valve 21 to restrict excessive squashing of the gasket 40. With this configuration, it is possible to suppress excessive squashing of the gasket 40, prevent premature loss of sealing performance due to breakage of the flow path forming portion 42, and suppress propagation of vibration from the electromagnetic valve 30 to the relay valve 21. For example, as shown in fig. 5, the restricting portions 37 are provided on a part (end portion 36) of the opposing surface 35 of the solenoid valve 30 opposing the relay valve 21, and are provided only on two sides out of 4 sides of the rectangular shaped end portion 36. The height H of the regulating portion 37 from the opposing surface 35 is set smaller than the thickness T of the gasket 40 (H < T). The contact portion of the regulating portion 37 is preferably provided in the vicinity of the screw 31 that fastens and fixes the solenoid valve 30 to the relay valve 21. The contact area of the restricting portion 37 is preferably within several percent of the area of the opposing surface 35, and propagation of vibration from the electromagnetic valve 30 to the relay valve 21 can be suppressed as the contact area decreases. The position and size of the restriction portion can be arbitrarily changed. For example, the restriction portion may be provided by enlarging the opposing surface 35 of the solenoid valve 30. Further, a restricting portion may be provided inside the opposing surface 35 of the solenoid valve 30 so as to avoid the gasket 40.
In the above configuration, a restriction portion that restricts excessive squashing of the gasket 40 by contact with the solenoid valve 30 may be provided in a part of an end surface of the relay valve 21 that faces the solenoid valve 30. The height of the restricting portion is set to be smaller than the thickness of the spacer 40. With this configuration, it is possible to suppress excessive squashing of the gasket 40, prevent premature loss of sealing performance due to breakage of the flow path forming portion 42, and suppress propagation of vibration from the electromagnetic valve 30 to the relay valve 21. The position and size of the restriction portion can be arbitrarily changed. For example, the restriction portion may be provided by enlarging the surface of the relay valve 21 facing the valve. Further, a restricting portion may be provided inside the facing surface of the relay valve 21 so as to avoid the gasket 40.
Further, the restriction portion may be provided at a part of the end surface of the solenoid valve 30 facing the relay valve 21, and the restriction portion may be provided at a part of the end surface of the relay valve 21 facing the solenoid valve 30.
In the above embodiment, the 6 projections 46 are provided on each surface of the plate portion 45 of the gasket 40, but the projections 46 may be 1 to 5 or less or 7 or more as long as the portions other than the projections 46 of the plate portion 45 can be prevented from sticking to the solenoid valve 30 or the relay valve 21.
In the above embodiment, the projections 46 are provided at the same positions on both surfaces of the plate portion 45 of the gasket 40, but the projections 46 may be provided at different positions.
In the above embodiment, the projections 46 are provided on both surfaces of the plate portion 45 of the gasket 40, but the projections 46 may be provided only on one surface of the plate portion 45.
In the above embodiment, the plate portion 45 of the spacer 40 has the hemispherical protrusion 46 as the thick portion, but the shape of the protrusion as the thick portion is not limited to the hemispherical shape, and may be another shape such as a cylindrical shape or a polygonal columnar shape. The plate portion 45 of the gasket 40 may have a protrusion as a thick portion.
In the above embodiment, the plate portion 45 divides the vibration damping space 43 of the gasket 40 into the solenoid valve side space 43a and the relay valve side space 43 b. However, the plate portion 45 may not divide the vibration damping space 43 into the solenoid valve side space 43a and the relay valve side space 43 b.
For example, as shown in fig. 6, the plate portion 45 of the gasket 40 may be integrally formed with the frame portion 44 and the flow path forming portion 42 so that the plate portion 45 of the gasket 40 contacts the relay valve 21. Even with such a configuration, the vibration generated by the solenoid valve 30 is first attenuated in the solenoid valve side space 43 a. Then, the vibration, for example, sound, which attempts to propagate from the solenoid valve side space 43a is shielded by the plate portion 45. Therefore, propagation of vibration generated by the solenoid valve 30 to the relay valve 21 can be suppressed.
As shown in fig. 7, the plate portion 45 of the gasket 40 may be integrally formed with the frame portion 44 and the flow path forming portion 42 so that the plate portion 45 of the gasket 40 contacts the solenoid valve 30. Even with such a configuration, the vibration generated by the solenoid valve 30 is first shielded by the plate portion 45. Even if the vibration is transmitted through the plate portion 45, the transmitted vibration, for example, the sound is further attenuated in the relay valve side space 43 b. Therefore, propagation of vibration generated by the solenoid valve 30 to the relay valve 21 can be suppressed.
In the above embodiment, the height from the plate portion 45 of the projection 46 or the like as the thick portion of the gasket 40 is set to be the same as the height of the frame portion 44, but the plate portion 45 may be set to be lower than the height of the frame portion 44 because it does not directly contact the end surface of the solenoid valve 30 or the end surface of the relay valve 21.
In the above embodiment, the projections 46 are provided on the plate portion 45 of the spacer 40, but the projections 46 may be omitted. For example, as shown in fig. 8, the plate portion 45 may be formed so as to divide the vibration damping space 43 of the gasket 40 into the solenoid valve side space 43a and the relay valve side space 43b, and the projection 46 may be omitted.
In the above embodiment, the plate portion 45 of the gasket 40 has a linear shape along the surfaces of the solenoid valve 30 and the relay valve 21, but the shape of the plate portion 45 may be modified as follows.
For example, as shown in fig. 9, the plate portion 45 of the gasket 40 may have a wavy cross-sectional shape, and the convex portion of the wave may contact the surface of the solenoid valve 30 or the relay valve 21. With such a shape, the vibration damping spaces 43 can be alternately provided on the solenoid valve 30 side and the relay valve 21 side along the surfaces of the solenoid valve 30 and the relay valve 21. Further, the plate portion 45 can be prevented from sticking to the solenoid valve 30 or the relay valve 21 and coming into surface contact without providing the projection 46 on the plate portion 45.
As shown in fig. 10, the plate portion 45 of the gasket 40 may have a rectangular wave-like cross-sectional shape, and a convex portion of the rectangular wave-like cross-sectional shape may contact a surface of the solenoid valve 30 or the relay valve 21. With such a shape, the vibration damping spaces 43 can be alternately provided on the solenoid valve 30 side and the relay valve 21 side along the surfaces of the solenoid valve 30 and the relay valve 21.
In the above embodiment, the plate portion 45 is provided in the gasket 40, but the plate portion 45 may be omitted partially or entirely as long as propagation of vibration from the solenoid valve 30 can be suppressed by the vibration damping space 43. For example, as shown in fig. 11, the plate portion 45 is omitted, and a support portion 44b extending from the frame portion 44 and supporting the flow passage forming portion 42 is provided. As shown in fig. 12, a vibration damping space 43 is provided between the flow passage forming portion 42 and the frame portion 44 of the gasket 40. According to such a configuration, since the vibration damping space 43 is present and the solenoid valve 30 and the relay valve 21 are not in direct contact, vibration is not directly transmitted between the solenoid valve 30 and the relay valve 21, and vibration is damped.
In the above configuration, a sound absorbing material for attenuating the vibration generated by the solenoid valve 30 may be disposed in the vibration attenuation space 43 of the spacer 40. As the sound absorbing material, felt, porous resin, or the like may be used. The sound absorbing material may be incorporated in any manner. For example, in fig. 13, a sound absorbing material 50 having a wavy cross section is inserted into the vibration damping space 43. In fig. 14, a sound absorbing material 50 in which wires are gathered is inserted into the vibration damping space 43. In the gasket 40 provided with the plate portion 45, a sound absorbing material may be provided in at least one of the solenoid valve side space 43a and the relay valve side space 43b of the vibration damping space 43. According to such a configuration, the vibration generated by the solenoid valve 30 is attenuated in the vibration attenuation space 43 and also by the sound absorbing material 50, so that the propagation of the vibration generated by the solenoid valve 30 to the relay valve 21 can be further suppressed.
In the above configuration, the communication portion 47 of the gasket 40 may be omitted.
In the above configuration, if the screw 31 for fixing the solenoid valve 30 and the relay valve 21 and the fastening portion of the screw 31 are disposed outside the frame portion 44 of the gasket 40, the through hole 48 of the gasket 40 may be omitted.
In the above embodiment, the flow path forming portion 42 is configured to be fitted in the housing portion 32a of the solenoid valve 30, but the flow path forming portion 42 may be configured to be fitted in a housing portion provided in the relay valve 21.
In the above embodiment, the relay valve 21 is used as the mounting member for the solenoid valve 30, but the relay valve 21 is not limited thereto, and another mounting member may be used.
The present disclosure includes the following structures. The reference numerals attached to the constituent elements of the embodiments are not intended to limit but to assist understanding.
[ supplementary note 1] A gasket (40) for sealing a mating surface of a solenoid valve (30) and a mounting member (21), the gasket (40) comprising:
a 1 st seal portion (44) provided at an outermost edge or along an outermost edge of the gasket (40) in a plan view of the gasket (40), the 1 st seal portion (44) being configured to be sandwiched by a mating surface of the solenoid valve (30) and a mating surface of the mounting member (21) and to be in surface contact with both of the mating surfaces; and
a 2 nd seal portion (42) provided at a position different from the 1 st seal portion (44) in a plan view of the gasket (40), the 2 nd seal portion (42) having a cylindrical shape including an inner side surface and an outer side surface, the inner side surface defining a flow path (41) that fluidly communicates a fluid port (32) of the solenoid valve (30) with a fluid port (22) of the mounting member (21), the outer side surface being configured to be in surface contact with the solenoid valve (30) and the mounting member (21),
when the gasket (40) is disposed between the solenoid valve (30) and the mounting member (21), a vibration damping space (43) is defined by the mating surfaces of the 1 st seal portion (44), the 2 nd seal portion (42), the solenoid valve (30), and the mounting member (21).
[ additional note 2] the gasket (40) according to additional note 1, which has a partition plate (45), the partition plate (45) extending between the 1 st seal portion (44) and the 2 nd seal portion (42), the partition plate (45) being disposed between a mating surface of the solenoid valve (30) and a mating surface of the mounting member (21) in such a manner that: dividing 1 st and 2 nd vibration damping spaces (43a, 43b) between the partition plate (45) and the mating surface of the solenoid valve (30) and between the partition plate (45) and the mating surface of the mounting member (21), respectively; the separator (45) is either not in contact with the two mating surfaces or is only in partial contact with each of the two mating surfaces.
[ additional note 3] the gasket (40) according to additional note 2, wherein the spacer (45) is a flat plate that is not in contact with the two mating surfaces of the solenoid valve (30) and the mounting member (21).
[ additional character 4] the gasket (40) according to additional character 2, wherein the spacer (45) is a non-flat plate that is in only partial contact with each of the two mating surfaces of the solenoid valve (30) and the mounting member (21).
[ additional note 5] the gasket (40) according to additional note 4, wherein the partition plate (45) has a wave-shaped cross section.
[ supplementary note 6] the gasket (40) according to supplementary note 4, wherein the partition plate (45) has a rectangular waveform cross section.
[ additional note 7] the gasket (40) according to any one of additional notes 4 to 6, wherein the spacer (45) includes a 1 st portion that is in contact with the mating surface of the solenoid valve (30) and a 2 nd portion that is in contact with the mating surface of the mounting member (21), and the 1 st portion and the 2 nd portion do not overlap when the gasket (40) is viewed in cross section and when the gasket is viewed in plan.
[ additional note 8] the gasket (40) according to additional note 2, wherein the spacer (45) includes a 1 st surface and a 2 nd surface that respectively face both mating surfaces of the solenoid valve (30) and the mounting member (21), and each of the 1 st surface and the 2 nd surface includes a plurality of spaced protrusions that protrude toward the corresponding mating surface and are arranged in a dispersed manner.
[ appendix 9] A gasket (40) according to appendix 1, having a partition plate (45), the partition plate (45) extending between the 1 st seal portion (44) and the 2 nd seal portion (42), the partition plate (45) being in non-contact with at least one of mating surfaces of the solenoid valve (30) and the partition plate (45) in such a manner as to define a vibration damping space (43a, 43b) between the partition plate (45) and the mating surface or between the partition plate (45) and the mating surface of the mounting member (21).
[ additional note 10] A gasket (40) according to any one of additional notes 1 to 9, comprising a sound absorbing material (50), wherein the sound absorbing material (50) is inserted into or filled in the vibration damping space (43) so that at least a part of the vibration damping space (43) remains as an empty space.
It should be clear to a person skilled in the art that the invention can also be embodied in other specific ways without departing from the scope of the technical idea thereof. For example, some of the components described in the embodiment (or 1 or more types thereof) may be omitted, or several components may be combined. With reference to the appended claims, the scope of the invention should be determined with reference to the claims, along with the full scope of equivalents to which such claims are entitled.
Description of the reference numerals
20. A valve device; 21. a relay valve as a mounting member; 22. a relay valve connection port as a fluid port; 30. an electromagnetic valve; 31. a screw; 32. a solenoid valve connection port as a fluid port; 32a, a storage section; 33. a valve body; 34. a solenoid; 35. an opposite face; 36. an end portion; 37. a restricting section; 40. a gasket; 41. a flow path; 42. a flow path forming section; 42a, an outer wall surface; 43. a vibration damping space; 43a, solenoid valve side space; 43b, relay valve side space; 44. a frame portion; 44a, an inner wall surface; 44b, a support portion; 45. a plate portion; 46. a protrusion; 47. a communicating portion; 48. 49, a through hole; 50. a sound absorbing material; H. a height; t, thickness; w, a gap.
Claims (6)
1. A gasket is provided between a solenoid valve and a mounting member to which the solenoid valve is mounted, wherein,
the gasket includes:
a plate-shaped frame portion sandwiched between the solenoid valve and the mounting member;
a flow path forming portion provided inside the frame portion, the flow path forming portion sealing a space between the solenoid valve and the mounting member and forming a flow path communicating a fluid port of the solenoid valve and a fluid port of the mounting member; and
a corrugated or rectangular corrugated plate portion connecting the frame portion and the flow passage forming portion,
when the gasket is sandwiched between the solenoid valve and the mounting member, the wavy or rectangular-wavy plate portion is alternately in contact with the solenoid valve and the mounting member, and a vibration damping space that damps vibration generated by the solenoid valve is formed between the solenoid valve and the wavy or rectangular-wavy plate portion and between the mounting member and the wavy or rectangular-wavy plate portion.
2. The gasket of claim 1, wherein,
a sound absorbing material is disposed in the vibration damping space.
3. The gasket of claim 1, wherein,
the frame portion has a communication portion communicating an inner side and an outer side of the frame portion.
4. A valve device, wherein,
the valve device includes:
an electromagnetic valve;
a mounting member; and
a gasket disposed between the solenoid valve and the mounting member,
the gasket according to any one of claims 1 to 3.
5. The valve apparatus of claim 4,
a restricting portion is provided on a part of an end surface of the solenoid valve facing the mounting member, the restricting portion being configured to contact the mounting member to restrict excessive squashing of the gasket.
6. The valve apparatus of claim 4,
a restricting portion is provided on a portion of an end surface of the mounting member facing the solenoid valve, the restricting portion being configured to restrict excessive squashing of the gasket by contact with the solenoid valve.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-116334 | 2016-06-10 | ||
| JP2016116334 | 2016-06-10 | ||
| PCT/JP2017/021164 WO2017213181A1 (en) | 2016-06-10 | 2017-06-07 | Gasket and valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109154388A CN109154388A (en) | 2019-01-04 |
| CN109154388B true CN109154388B (en) | 2021-01-08 |
Family
ID=60577967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780029086.2A Active CN109154388B (en) | 2016-06-10 | 2017-06-07 | Gasket and valve device |
Country Status (3)
| Country | Link |
|---|---|
| JP (2) | JPWO2017213181A1 (en) |
| CN (1) | CN109154388B (en) |
| WO (1) | WO2017213181A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7313711B2 (en) * | 2021-03-09 | 2023-07-25 | 京楽産業．株式会社 | game machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4066058A (en) * | 1976-05-12 | 1978-01-03 | Deere & Company | Vibration isolation system |
| JPS632925A (en) * | 1986-06-23 | 1988-01-07 | Nippon Kayaku Co Ltd | C-kinase inhibitor and anti-tumor agent |
| JPH06698Y2 (en) * | 1988-01-13 | 1994-01-05 | 株式会社コガネイ | Clean room pollution prevention manifold |
| JPH0523908Y2 (en) * | 1988-01-13 | 1993-06-17 | ||
| JP2589614Y2 (en) * | 1991-12-20 | 1999-02-03 | エスエムシー 株式会社 | Electric-pneumatic regulator |
| JPH0735857U (en) * | 1993-12-13 | 1995-07-04 | エスエムシー株式会社 | Valve gasket |
| JPH0893942A (en) * | 1994-09-21 | 1996-04-12 | Smc Corp | Seal mechanism for valve assembly |
| DE10060872B4 (en) * | 2000-06-15 | 2012-11-15 | Reinz-Dichtungs-Gmbh | gasket |
| CN101069035B (en) * | 2004-11-30 | 2012-05-23 | 喜开理株式会社 | Seal structure for connecting section in fluidic device |
| CN104364570B (en) * | 2012-06-25 | 2015-12-02 | 株式会社久保田 | Sealing, pressure ring, joint and valve |
| JP6175291B2 (en) * | 2013-06-14 | 2017-08-02 | Ckd株式会社 | Gasket mounting structure |
-
2017
- 2017-06-07 JP JP2018521758A patent/JPWO2017213181A1/en active Pending
- 2017-06-07 WO PCT/JP2017/021164 patent/WO2017213181A1/en active Application Filing
- 2017-06-07 CN CN201780029086.2A patent/CN109154388B/en active Active
-
2020
- 2020-04-13 JP JP2020071862A patent/JP6862593B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP6862593B2 (en) | 2021-04-21 |
| JPWO2017213181A1 (en) | 2019-03-07 |
| CN109154388A (en) | 2019-01-04 |
| WO2017213181A1 (en) | 2017-12-14 |
| JP2020118301A (en) | 2020-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102678811B (en) | Liquid-sealed antivibration device | |
| US8678360B2 (en) | Liquid-sealed type vibration isolator | |
| US8894051B2 (en) | Liquid-sealed vibration isolator | |
| KR101510350B1 (en) | Mounting device absorbing vibration | |
| JP5919129B2 (en) | Vibration isolator | |
| CN109154388B (en) | Gasket and valve device | |
| JP2584569Y2 (en) | Liquid-enclosed power unit mount | |
| JP5184276B2 (en) | Liquid-filled vibration isolator | |
| WO2010119643A1 (en) | Liquid-sealed vibration-isolating device | |
| JP5184272B2 (en) | Liquid-filled vibration isolator | |
| JP5184273B2 (en) | Liquid-filled vibration isolator | |
| JP2006250281A (en) | Fluid encapsulated type vibration isolating device | |
| JP2005337299A (en) | Pneumatic switching type fluid-filled engine mount | |
| JP2008309191A (en) | Vibration absorbing device | |
| JP2010255819A (en) | Vibration control device | |
| KR100931498B1 (en) | Hydrollic engine mount | |
| JP4158111B2 (en) | Pneumatic switching type fluid-filled engine mount | |
| KR100931132B1 (en) | Engine mount unit | |
| JP2014031844A (en) | Vibration-proofing device | |
| JP3994397B2 (en) | Fluid filled vibration isolator | |
| JP7546352B2 (en) | Fluid-filled engine mount | |
| JP5436252B2 (en) | Vibration isolator | |
| JPH04272532A (en) | Liquid-sealed vibrationproof device | |
| KR100245223B1 (en) | Mounting structure of liquid sealing type | |
| KR101551942B1 (en) | Hydraulic mount having a damping module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |