JPS608386B2 - solenoid valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a solenoid valve having a terminal on the upper part of a valve body containing a built-in operating valve.

Conventionally, this type of solenoid valve has been manufactured, for example, by Japanese Utility Model Publication No. 46-573.
As described in Publication No. It was constructed so that it was electrically connected to the terminal of the terminal lotus through a small hole in the valve body.

However, if this solenoid valve malfunctions, the terminal weight is integrally fixed to the valve body, so it is necessary to remove the power connection wire from the terminal of the terminal crab and repair the valve, valve body, etc.
Since it has to be replaced, it takes a long time to repair or replace it, and it also has the drawback that a wiring error is likely to occur when connecting the power supply connection line to the terminal again after repair.

In particular, when a solenoid valve is installed in a place where workability is poor, such as a high place or a narrow place, as is generally the case, the above-mentioned drawbacks become significant, and this type of solenoid valve poses a serious problem in terms of maintenance technology. Met. In addition, in this solenoid valve, the lead wire of the solenoid coil is connected to the terminal of the terminal through a small hole in the valve body, so if the solenoid coil burns out, the solenoid can be disconnected independently from the terminal. The drawback is that it cannot be easily removed and replacing the electromagnetic coil is complicated. Furthermore, for this solenoid valve, the work of electrically connecting the lead wire of the above-mentioned solenoid coil to the terminal and the work of assembling the solenoid protrusion and terminal crab to the valve body, that is, the work of the electrical system and the mechanical system must be performed in parallel. However, there was also the drawback that the manufacturing process was complicated. Therefore, an object of the present invention is to configure the terminal bell separately from the valve body so that the valve body can be removed from the terminal bell while leaving the terminal weight connected to the power supply connection line intact. The purpose is to make it possible to easily repair and replace the valve body and operating valve, and to prevent wiring errors after repair.

Another object of the present invention is that the electromagnetic valve and the terminal protrusion can be easily attached and detached from the valve body independently, and the electrical system and mechanical system can be completely separated, making it easy to manufacture the solenoid valve. The goal is to make it possible. In order to achieve the above object, the solenoid valve of the present invention has an electromagnetic cliff-side connection part and a terminal-side connection part perpendicular to the electromagnetic pupil-side connection part, on the upper part of the valve body that has a built-in operating valve for controlling fluid. A connecting sparrow having a connecting fitting fixed thereto is provided, a connecting part that can be inserted and removed from the terminal weight side connecting part, and a terminal that is installed in this connecting part is attached to the above-mentioned self-connecting mackerel. The terminal pupil-side connection part and the connection part are removably connected to the terminal pupil-side connection part from the mounting direction of the terminal twill. , an electromagnetic coil equipped with an electromagnetic coil supplied with power from this connection part is detachably attached to the side of the valve body, and the electromagnetic coating side connection part and the above-mentioned ferrule connection part are attached and detached from the mounting direction of the electromagnetic cliff. An electrical circuit is formed between the terminal and the electromagnetic coil so that the electromagnetic coil drives the operating valve.

Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

The electromagnetic valves shown in FIGS. 1, 2, and 3 include a valve body 2 that incorporates an operating valve 1 that controls the flow direction of fluid, and a valve body 2 that is detachably attached to both sides of the valve body 2. A pair of left and right electromagnetic coils 4.4 containing electromagnetic coils 3, 3 for controlling the operation of the valve 1, and a pair of electromagnetic coils 4.4 attached to the upper part of the valve body 2 and electrically connected to the electromagnetic coils 3, 3, respectively. A connector 6 is provided with connecting fittings 5, 5 on the left and right sides as connection means, respectively, and is detachably attached to the upper part of the connecting bonito 6, and is connected to the pair of connecting fittings 5, 5 of the connecting lotus 6, respectively. It consists of a terminal lotus 9 in which a pair of terminals 8, 8 having a pair of connecting portions 7, 7 are built in on the left and right sides, respectively.

The valve body 2 is formed approximately in the shape of a rectangular parallelepiped, and on the upper part of the valve body 2, a pair of screws are disposed diagonally with connecting coatings 6 made of an insulating material such as a plate-shaped plate having an opening at the top. It is fixed by 11,11.

In FIG. 1, the connected bonito 6 has left and right side walls 6a,
A pair of socket insertion holes 1 passing through each of 6a in the horizontal direction
2 and 12 are provided, and a roughly camp-shaped cover 14 made of an insulating material such as transparent or translucent plastic is fixed to the center of the bottom wall 6c from below with screws 15, and the cover 14 and the bottom wall 6c form a storage chamber. 16, and a pair of pipes 18, 18 having vertically penetrating socket insertion holes 17, 17 are integrally formed in the left and right side walls 14a, 14a of the cover 14, respectively, in FIG. On the other hand, the connection cliff 6 made of the connection fitting 5 is made by bending a thin conductive plate at right angles as shown in FIGS.
On the other hand, a substantially cylindrical socket 5b in the vertical direction is formed at the end of the pond as a connection portion on the terminal weight side.

As shown in Figures 2 and 3, the above-mentioned connection fitting 5 is fixed by pressing its horizontal plate portion 5c into a groove (not shown) in the bottom wall 6c of the connection ridge 6, and its horizontal socket. 5a is inserted into the socket insertion hole 12 of the side wall 6a, while the vertical socket 5b is inserted into the socket insertion hole 17 of the cover 14. In the above embodiment, the horizontal slope portion 5c of each connection fitting 5... is fixed by iron fitting into a groove (not shown) of the connection cliff, but the horizontal slope portion 5c of each connection fitting 5... The plate portion 5c may be fixed.

In such a case, the cover 14 provided with the connecting fittings 5 can be attached to and detached from the connecting pupil 6. On the other hand, each of the electromagnetic crabs 4 passes through the valve body 2 in the horizontal direction.
The valve body 2 is fixed to the left and right sides of the valve body 2 in FIG. 1 by bolts 21 fixed thereto and nuts 22 screwed thereto. A protrusion 4a is provided on the upper part of the electromagnetic cage 4 on the side of the valve body 2, and a connecting portion of the electromagnetic coil 3 consisting of a pair of plugs 23, 23 is made to protrude in the horizontal direction from the protrusion 4a. , 23 are inserted into the horizontal sockets 5a, 5a of the pair of connection fittings 5, 5 of the connection bell 6, and are electrically connected. Therefore, since the plug 23 and the socket 5a are both arranged and lacquered in the same horizontal direction as the mounting direction of the electromagnetic cliff 4, the bolt 211 and nut 22 can be attached and removed to move the electromagnetic lotus 4 in the horizontal direction. The electromagnetic pupil 4 can be freely attached to and detached from the valve body 2. At this time, the side surface of the protrusion 4a on the valve body 2 side and the outer surface of the left and right side walls 6a, 6a of the connection cliff 6 are brought into close contact with each other, and the ○ ring 24 provided around the L socket insertion hole I2 The surroundings of the plug 23 and socket 5a are sealed. On the other hand, at the top of the connecting ridge 6, a first
As shown in the figure, a terminal crab 9 made of an insulating material such as plastic and having an insertion opening 25 for a power supply connection line on the left side while penetrating vertically is arranged through a packing 26.
As shown in FIGS. 2, 3, and 6, the terminal weight 9 has protruding portions 27, 2 protruding from approximately the center of its front and rear side walls 9a, 9a.
The front and rear side walls 14a, 1 of the cover 14 have projecting portions 27, 27 fixed to the support pupil 6, respectively.
Plug press-fit holes 28 are provided at the locations of the protrusions 27 which are disposed on the pair of pipes 18 of 4a and which face the socket insertion holes 17 of the pipes 18, respectively, and which penetrate in the vertical direction. Then, the connecting portion of the terminal 8 made of a substantially rod-shaped plug 7 is press-fitted into each of the plug press-fit holes 28 to integrally fix the plug 7 to the terminal crab 9, and the tip 7a of the plug 7 is The protruding portion 27 is made to protrude from the lower surface, and the tip 7a is closely connected to the vertical socket 5b of the connecting fitting 5. A female screw 7b is provided, and a terminal made of a terminal screw 8 is screwed into the female screw 7b.
Therefore, as shown in FIG.
The terminal screws 8, 8 on one side partitioned into 3, 33 are connected to the electromagnetic coil 3 on one side via a pair of plugs 7, 7, connecting fittings 5, 5, and plugs 23, 23.
, 8, the electromagnetic coil is energized and the valve 1 is actuated. Further, a cover plate 36 is attached to the upper part of the terminal weight 9 via a packing 35, and the cover plate 36 is
6. A pair of long screws 37, 37 arranged diagonally passing through the packing 35 and the terminal stop 9 connect these to the valve body 2.
It is fixed at Therefore, when the long pins 37, 37 are attached and removed and the terminal sparrow 9 is moved in the vertical direction, the plug 7 and the socket 5b are both arranged in the same vertical direction as the terminal bell 9, and are iron-coupled. Therefore, the terminal weight 9 can be freely attached to and detached from the valve body 2. Note that the cover plate 36
In addition, the gasket 35 is provided with a pair of through holes 36a, 35a for protruding the cover 14, which are arranged approximately diagonally. On the other hand, in the storage chamber 16 formed by the bottom wall 6c and the cover 14, the cover 14 is
A printed board 41 is fixed to the bottom of the board. A coil spring 4 made of a conductive material is provided at the bottom of the printed board 41 and at a location facing the underwater slope 5c of each of the connection fittings 5.
3 are fixed respectively, and the lower end 43 of each coil spring 43 is fixed.
a are brought into contact with the horizontal plate portion 5c, respectively. On the other hand, on the upper part of the printed board 41, a pair of coil springs 43, 43 shown in FIG. An energization display element consisting of a neon lamp 46 and a circuit element consisting of a resistor 47 are connected in series through a conductive portion 41 and a conductive wire 45. Further, on the upper part of the cover 14, a pair of protrusions 14d that protrude upward in two stages are provided.
As shown in the figure, the neo lamps 46 are arranged approximately diagonally, and in the lower stage 14d-1 of each protrusion 14d, the neo lamps 46
The upper stage 14d-1 is fitted with a pair of through holes 36a provided in the lid plate 36 and the gasket 35, respectively.
, 35a, and the neon lamps 46
Transparent or translucent cover 14 that allows the light to be illuminated from the outside
We are making sure that we can confirm this through the website. Therefore, the pair of coil springs 43 on one side of the electromagnetic coil 3
, 43 is connected in parallel with the electromagnetic coil 3 via the pair of connecting fittings 6 and 5, so that when the electromagnetic coil 3 is energized, the neon lamp 46 always corresponds to the electromagnetic coil 3. A neon lamp 46 on the side lights up to indicate the status. Note that circuit elements such as a capacitor, a surge absorbing element such as a Zener diode, a rectifier circuit, etc. can be stored in the storage chamber 16 and on the printed board 41 as required. Next, the handling of assembly, which is the most distinctive feature of the above-mentioned solenoid valve, will be explained.

To assemble the electromagnetic valve, the connection head 6, the terminal coating 9, and the electromagnetic lotus 4 are assembled independently in advance, and then they are attached to the valve body 2 in the direction of the arrow shown in FIG. 6 for assembly.

That is, in advance, a cover 14 to which a printed board 41 to which a neon lamp 46, a resistor 47, and a coil spring 43 are attached is fixed is fixed to the connection shade 6 with screws 15, and each horizontal socket of the connection weight 6 is Insertion port 1
The socket 5a of the connection fitting 5 is inserted into the socket 12, and the socket 5b of the connection fitting 5 is inserted into each vertical socket insertion hole 17 of the cover 14. The terminal cliff 9 also has a plug 7 inserted into the plug press-fit hole 28 in the vertical direction of the protrusion 27.
is inserted and fixed, and the tip 7a of the plug 7 is made to protrude vertically downward. Then, the terminal screw 8 is screwed into the female thread 7b of the plug 7. After assembling the connecting box 6 and the fitting 9 in this manner, the connecting crab 6 is fixed to the valve body 2 with a pair of screws 11, and then the packing 26 is sandwiched on the connecting weight 6, and the terminal shade 9 9.
The tip 7a of each plug 7 is inserted into each socket 5b in the vertical direction of the connecting sparrow 6, and the packing 35 is placed on the top of the terminal book 9, and the cover plate 36 is inserted into the holes 35a and 36a of the cover 1.
A pair of long pins 3 are arranged so that the protruding portions 14d of 4 are inserted into the wall, and penetrate through the cover plate 36, the terminal head 9, and the connecting cliff 6.
7, the terminal bonito 9 is detachably fixed to the valve body 2. On the other hand, on the left and right side of the valve body 2, there is a "move each electromagnetic lotus 4 horizontally along the bolts 211, insert the pair of plugs 23 into the pair of horizontal sockets 5a of the connecting shell 6, and then tighten the nuts. 22 is screwed into the bolt 21 to removably fix the electromagnetic weight 4 to the valve body 2.The electromagnetic valve assembled in this way is fixed in the mounting direction of the electromagnetic ridge 4, which can be attached and detached by the bolt 21 and the nut 22. The plug 7 and the socket 5b are electrically connected to each other by the iron joint of the plug 23 and the socket 5a, which are arranged horizontally, and the terminal sparrow 9 is attached and detached by a pair of long screws 37, that is, the plug 7 and the socket 5b are arranged in the vertical direction.
Since the electrical connection is made by joining the solenoid valve, there is no need to connect the lead wire of the solenoid coil to the terminal through a thin hole when assembling the solenoid valve, making assembly easy and requiring fewer assembly steps. The solenoid valve itself becomes cheaper. In addition, this solenoid valve is manufactured by assembling the mechanical system of the valve body 2, the mechanical system of the valve 1, and the electrical system of the connecting cliff 6, terminal weight 9, and electromagnetic weight 4 completely separately, and then assembling them into the mechanical system as described above. It is easy to manufacture because the electrical system can be easily and integrally assembled around it.In addition, this solenoid valve has a cover 4 on the connection shade 6.
A storage chamber 16 is formed by the cover 14 and the bottom wall 6c of the connecting bonito 6, and a neon lamp 46 and a resistor 47 are stored in the storage chamber 16.
This is convenient because it can be protected by the neon lamp 46 and the neon lamp 46 can be constantly checked through the cover 14. Furthermore, this solenoid valve connects the rod-shaped plug 7 to the terminal cliff 9.
The terminal weight 9 is fixed in the mounting direction, that is, in the vertical direction, and the upper end of the plug 7 is provided with a female thread 7b into which the terminal screw 8 is screwed, while the lower end is detachably attached to the vertical socket 5b of the connecting fitting 5. I decided to get married, so
It has a small number of parts and is compact. Furthermore, this solenoid valve includes a terminal book 9, a connecting screen 6, and a cover 1.
Since 4 is made of an insulating material, it is easy to insulate, does not require special space for insulation, and is compact. Furthermore, when this electromagnetic valve is incorporated into other hydraulic equipment, there are the following advantages. In general, in hydraulic systems, solenoid valves are often installed in locations that are difficult to work with, such as in high places or in narrow spaces. In such a case, ``In order to attach the solenoid valve to a predetermined location, first remove the terminal wire 9 from the valve body 2, attach the valve body 2 to the predetermined location, and then connect the terminal wire 9 to the terminal bonito 9 at a convenient location. After this, the terminal crab 9 is attached to the valve body 2 with a pair of long screws 37, and at the same time the plug 7 is connected to the socket 5M for easy electrical connection, making it easy to assemble the solenoid valve into the hydraulic system. At the same time, mistakes in wiring work are eliminated.Furthermore, in the event that a solenoid valve malfunctions due to the valve 1 sticking to its valve body 2, etc., there are the following advantages.

That is, when the pair of long screws 37 are removed with the open connection wire connected to the terminal screen 9 and the terminal sparrow 9 is moved vertically upward from the valve body 2, the socket re b of the connection coating 6 and the terminal lotus 9 are removed. Since the plugs 7 are iron-coupled on the same axis in the direction in which the terminal saddle 9 is removed, that is, in the vertical direction, when the terminal weight 9 is removed from the valve body 2, the plug 7 in the terminal cover 9 and the socket 5b in the connecting pupil 6 are Since the saddle fitting can be removed, it is easy to remove the valve body 2.
Remove the terminal cod 9 from the. Therefore, unlike conventional solenoid valves, the terminal lotus 9 can be attached and detached independently from the valve body 2 while the power connection line is connected to the terminal protrusion 9, so even if the solenoid valve fails, the valve body 2 can be replaced easily and quickly, and the stop time of the hydraulic system is shortened, which has an advantage in terms of maintenance.Furthermore, when the electromagnetic coil 3 of the electromagnetic pupil 4 is interrupted, the nut 22 is separated from the bolt 21. Removal: When the electromagnetic protrusion 4 is moved horizontally along the bolt 21, the socket 5a of the succeeding prong 6 and the plug 23 of the electromagnetic protrusion 4 are removed.
Since they fit together on the same axis in the mounting direction of the electromagnetic crab 4, that is, in the horizontal direction, their competition is removed at the same time as the electromagnetic crab 4 is removed from the valve body 2. therefore,
With this electromagnetic valve, even if the electromagnetic coil 3 is disconnected, it can be easily and quickly replaced independently. 7 and 8 show a solenoid valve according to a second embodiment.

The main feature of this electromagnetic valve is that the storage chamber 51 is provided within the terminal lotus 52 in contrast to the above embodiment. That is, in this electromagnetic valve, the Z bottom wall 52c of the terminal cliff 52 projects upward in a substantially convex shape, and a cover 53 is fixed to the lower end of the terminal lotus 52 to form a storage chamber 51 for circuit elements, etc. And the protrusion 53a of the cover 53 is connected to the bottom wall 52.
A through-hole 35a is provided in the cover plate 36 and the packing 35, respectively, to hold the neon lamp Z46 in the protrusion 53a. The lighting of the neon lamp 46 can be confirmed from the outside through the neon lamp 36a. Also, this solenoid valve has connection crab 5
4 through a holding plate 55, and a plug 57 is fixed to one end of the connection fitting 56 vertically upward, while the socket 5 electrically connected to the terminal 8 is attached to the cover 53.
8 protrudes vertically downward, and when the terminal weight 52 is attached to the connection weight 54, the plug 57 and socket 58 meet. FIG. 9 shows a solenoid valve according to a third embodiment.

This solenoid valve has a valve body 2 and a solenoid weight 4 having the same structure as the solenoid valves according to the first and second embodiments, and the connections 71 are the same as those of the first and second embodiments.
, the connection means 6 and 54 according to the second embodiment are configured to have a larger volume, and the connection means is provided at the front part instead of the upper part of the connection head 71, while the connection means for the terminal shade 72 is provided at the rear part. The connecting portion of the terminal 72 is connected to the connecting means of the connecting pupil 71 from the front and rear directions. In addition, in the above three embodiments, the connection weights 6, 54
The electromagnetic coil 3 is provided with means consisting of connecting fittings 5 and 56.
Although the connecting part of the terminal 8 and the connecting part of the terminal 8 were indirectly connected, the connecting part of the terminal of the terminal was formed into an inverted U-shape that opened downward, and the connecting part of the electromagnetic coil was directly connected to the connecting part of the terminal. The terminal weight and the electromagnetic weight may be freely attached and detached so that the terminal weight and the electromagnetic weight fit together. In this case, the means for connecting the two connecting portions of the connecting coating refers to a space in which the two connecting portions are brought into contact. As described in detail in the above embodiments, the solenoid valve according to the present invention has a connecting ridge equipped with a connecting means attached to the upper part of a valve body housing an operating valve, and a connecting portion with a built-in terminal. At the same time, the terminal coating is removably attached to the connecting ridge, and at the same time, the connecting part of the terminal is removably connected to the connection means of the above connection lot from the mounting direction of the terminal sparrow, so that the terminal crab can be removed from the valve body. It can be removed easily and quickly, and the valve and valve body can be repaired and replaced in a short time.Furthermore, the valve and valve body can be repaired and replaced while the power connection wire is connected to the terminal, eliminating the possibility of wiring mistakes, which reduces maintenance issues. Further, the solenoid valve according to the present invention has a built-in solenoid coil and a connecting part thereof at the upper part of one side.The solenoid valve according to the present invention is removably attached to the side of the valve body, and at the same time, the solenoid valve has the following advantages: Since the connecting part of the electromagnetic coil is connected to the connection means of the above-mentioned connection lot in a detachable manner from the direction of attachment of the electromagnetic coil, in the event that the electromagnetic coil burns out, the electromagnetic coil can be easily connected independently of the terminal weight. It is removable and easy to replace the electromagnetic coil, which also has maintenance benefits.

Furthermore, "The solenoid valve according to the present invention is easy to manufacture and inexpensive because the mechanical system and the electrical system can be assembled completely separately, and then the electrical system can be easily assembled integrally around the mechanical system. It is.

Furthermore, in the solenoid valve according to the present invention, when a cover is fixed to the connection plate or the terminal land and a storage chamber is formed in the connection plate or the terminal plate, the energization display element and the circuit element are stored in the storage chamber. This has the advantage that these elements can be protected.

[Brief explanation of the drawing]

1 to 6 show a solenoid valve according to a first embodiment of the present invention, FIG. 1 is a front view with main parts cut away, and FIG. 2 is a plan view showing a state with the cover plate and packing removed. Figure 3 is a sectional view taken along line m-m in Figure 1, Figures 4 and 5 are a plan view and side view of the connecting fitting, Figure 6 is an exploded assembly view, Figure 7 is
, 8 shows a solenoid valve according to a second embodiment of the present invention, and FIG.
8 is a cross-sectional plan view of the main part, and FIG. 9 is a right side view of the electromagnetic valve according to the third embodiment. 1...Valve, 2...Valve body, 3...
Electromagnetic coil, 4... Electromagnetic weight, 6, 64, 71.
...Connection lotus, 6c...Bottom wall, 7...
Plug, 8...Terminal, 9,52,72...Terminal bonito, 14,53...Cover, turtle 6,51...Storage room. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9

Claims (1)

[Claims] 1. On the upper part of the valve body 2 containing the operating valve 1 for controlling fluid, there is an electromagnetic case side connection part 5a and a terminal case side connection part 5 orthogonal to the terminal case side connection part 5a, which is perpendicular to the electromagnetic case side connection part 5a.
a connecting part 7 which is provided with a connecting housing 6 to which a succeeding metal fitting 5 having b is fixed, and which can be inserted into and removed from the terminal housing side connecting part 5b;
A terminal housing 9 having a terminal 8 connected to the connecting part 7 is removably attached to the connecting housing 6, and the terminal housing side connecting part 5b and the connecting part 7 are connected to each other in the terminal housing 9. The electromagnetic case 4, which is detachably connected from the installation direction and has a connection part 23 that can be inserted and removed from the electromagnetic case side connection part 5a, and an electromagnetic coil 3 that is supplied with power from this connection part 23, is attached to the valve. Main body 2
The electromagnetic case side connection part 5a and the connection part 23 are removably connected from the mounting direction of the electromagnetic case 4, and an electric circuit is formed between the terminal 8 and the electromagnetic coil 3. An electromagnetic valve characterized in that the electromagnetic coil 3 drives the operating valve 1.