CN212868678U - Small-sized electromagnetic valve capable of realizing directional fluid switching - Google Patents
Small-sized electromagnetic valve capable of realizing directional fluid switching Download PDFInfo
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- CN212868678U CN212868678U CN202021497147.3U CN202021497147U CN212868678U CN 212868678 U CN212868678 U CN 212868678U CN 202021497147 U CN202021497147 U CN 202021497147U CN 212868678 U CN212868678 U CN 212868678U
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Abstract
The utility model discloses a small-sized electromagnetic valve capable of realizing directional switching of fluid, which comprises an upper valve body and a lower valve body, wherein the bottom of the upper valve body is connected with the top of the lower valve body, the surface of the upper valve body contacted with the lower valve body is divided into a plane and an inclined plane, the outer surface of the top of the upper valve body is provided with a first port, a second port and a third port, the first port is communicated with the inclined plane of the upper valve body, the lower valve body is provided with a diaphragm component hole, the circle center of the diaphragm component hole is coincided with the circle center of the second port, the diaphragm component hole comprises a sealing pad hole and a mandrel hole, the sealing pad hole is arranged at the top of the lower valve body, the mandrel hole is arranged at the bottom of the lower valve body, the side edge of the mandrel hole is provided with a branch hole, the branch hole is communicated with the inclined plane of the mandrel and the lower valve body, the first branch hole is vertically contacted with the first port, the utility model discloses the inner chamber dead volume is little, and it is few to remain liquid, is favorable to the equipment miniaturization, and the cost of overhaul is low.
Description
Technical Field
The utility model belongs to the fluid control field specifically belongs to a can realize directional small-size solenoid valve that switches of fluid.
Background
According to the current market development situation, the analysis type instrument has the needs that tend to miniaturize, the solenoid valve for analysis type generally requires corrosion-resistant, the leakproofness is high, the inner chamber is small, characteristics such as appearance small and the equipment fixing of being convenient for, current solenoid valve is because a lower valve body passes through a port intercommunication of inclined hole and last valve body, its intensity that should have in order to guarantee the valve body, lead to present solenoid valve to have the bulky shortcoming of appearance and inner chamber, be unfavorable for miniaturization and equipment maintenance cost is higher.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a can realize the small-size solenoid valve of directional switching of fluid solves the present solenoid valve volume less and the less problem that is unfavorable for the instrument miniaturization of inner chamber volume.
In order to achieve the above object, the utility model provides a following technical scheme: a small-sized electromagnetic valve capable of realizing directional switching of fluid comprises an upper valve body, a lower valve body and a valve seat, wherein the bottom of the upper valve body is fixedly connected with the top of the lower valve body, the surface of the upper valve body, which is in contact with the lower valve body, is divided into a plane and an inclined plane, the bottom of the lower valve body is fixedly connected with the valve seat, a first port, a second port and a third port are arranged on the outer surface of the top of the upper valve body, the first port penetrates through the inclined plane of the upper valve body, a diaphragm assembly hole is formed in the lower valve body, the circle center of the diaphragm assembly hole is coincident with the circle center of the second port, the diaphragm assembly hole comprises a sealing pad hole and a mandrel hole which are integrally formed, the sealing pad hole is formed in the top of the lower valve body, the mandrel hole is formed in the bottom of the lower valve body, the diameter of the sealing pad hole is larger than that of the mandrel hole, a branch hole is formed in, the first branch hole is vertically contacted with the first port, the length of the cross section of the small-sized electromagnetic valve is less than or equal to 21mm, and the width of the cross section of the small-sized electromagnetic valve is less than or equal to 16 mm.
Furthermore, a sealing gasket groove is further formed in the connecting surface of the upper valve body and located at the second port, the sealing gasket groove penetrates through the second port and the connecting surface of the upper valve body, and the circle center of the sealing gasket groove is overlapped with the circle center of the second port; and a third port groove is formed in the side edge of the sealing gasket hole of the lower valve body in an integrated mode, and the third port is communicated with the third port groove.
Further, the valve further comprises a diaphragm component, the part of the diaphragm component is inserted into the diaphragm component hole, the diaphragm component comprises a mandrel, a rubber diaphragm and a sealing gasket, the rubber diaphragm is sleeved on the mandrel, the rubber diaphragm is positioned on the end face of the mandrel hole and positioned at the bottom of the lower valve body, one end of the mandrel is sleeved with the sealing gasket,
when the second port is sealed, the sealing gasket is pressed against the end surface of the sealing gasket groove and is not contacted with the core shaft hole,
when the first port is sealed, the sealing gasket is not contacted with the sealing gasket groove, and the sealing gasket is contacted with the end face of the core shaft hole.
Further, a supporting body groove is further formed in the bottom of the lower valve body, the central axis of the supporting body groove coincides with the central axis of the diaphragm component hole, the rubber diaphragm is arranged in the supporting body groove, a back support is further placed in the supporting body groove, and the surface of the back support contacting with the rubber diaphragm is a curved surface.
Furthermore, an electromagnet is arranged in an inner cavity of the valve seat, a stop iron is fixedly arranged in the inner cavity of the electromagnet, an armature is arranged between the stop iron and the lower valve body, one end of the armature is in threaded connection with the mandrel, a pressure spring is arranged at the other end of the armature, and the armature can move between the stop iron and the lower valve body.
Furthermore, first sealing washer has all been placed to the plane of going up valve body and lower valve body contact and the inclined plane of going up valve body and lower valve body contact.
Furthermore, a second sealing ring is arranged between the lower valve body and the valve seat.
Furthermore, the upper valve body and the lower valve body are connected through screws.
Furthermore, the outer surface of the electromagnet is coated with a plastic packaging layer.
Furthermore, a sinking groove is formed in the inclined plane of the lower valve body and used for placing the first sealing ring.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model provides a can realize directional small-size solenoid valve that switches of fluid, go up the volume that reduces the inner chamber of valve body and lower valve body through the inclined plane cooperation, the inclined plane design of upper and lower valve body makes the first port and the branch hole of going up valve body and lower valve body realize straight hole design moreover, and first port is perpendicular with a hole, and the intensity that needs to go up valve body and lower valve body is lower to it is littleer to make the whole height dimension of going up valve body and lower valve body, and the cross section length of solenoid valve is no longer than 21mm, and the cross section width is no longer than 16mm, compares in the solenoid valve on the market, the utility model discloses a structure is compacter, and overall dimension is less, and the inner chamber is dead small, and residual liquid is few, is.
Further, the utility model discloses a solenoid valve not only can realize that miniaturized purpose can also satisfy the purpose that the fluid orientation switched, and the dabber moves upward and pushes up the sealing gasket inslot at second port department for third port and first port switch on, and the second port is opened in the dabber downstream, and the bottom that sealed pad hole will be sealed to the sealing gasket, and second port and third port switch on, the utility model discloses nimble reliable can realize the fluid orientation and switch.
Further, the utility model discloses a back of the body props still to have placed on the rubber diaphragm, increases the leakproofness of valve body down, and the leakproofness of this device is stronger.
Further, the utility model discloses an go up the valve body and still be provided with first sealing washer and second sealing washer down between the valve body, increase the leakproofness of valve body and lower valve body, and because the inclined plane design of upper and lower valve body, only need set up a sealing washer on the plane of upper and lower valve body, set up another sealing washer on the inclined plane of upper and lower valve body, the sealing washer isolated design of its plane part sealing washer and inclined plane part, each other does not influence, independently seal, and design heavy groove structure on the valve inclined plane down, a sealing washer on for install specially and the fixed inclined plane, make its sealing performance more reliable.
Further, the utility model discloses a also be provided with the sealing washer between lower valve body and the disk seat, in can preventing the interior liquid inflow disk seat of lower valve body, the leakproofness of this device of further increase.
Further, the utility model discloses an electro-magnet adopts the form of plastic envelope, and the sealing washer between the upper and lower valve body and the sealing washer between lower valve body and the disk seat moreover for this device's protection level improves to IP 65.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic front view of the structure of the present invention;
FIG. 3 is a schematic top view of the structure of FIG. 2;
FIG. 4 is a schematic structural view of the upper valve body;
FIG. 5 is a schematic structural view of the lower valve body;
FIG. 6 is a schematic view of a connection structure of the upper valve body and the lower valve body;
FIG. 7 is a schematic diagram of a formal cross-sectional structure of the present invention;
FIG. 8 is a schematic structural view of a diaphragm assembly;
in the drawings: 1-mandrel, 2-second sealing ring, 3-first sealing ring, 4-first port, 401-second port, 402-third port, 5-upper valve body, 6-sealing gasket, 7-lower valve body, 8-rubber diaphragm, 9-back support, 10-armature, 11-pressure spring, 12-electromagnet, 13-lead and 14-screw.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1 and 2, the present invention provides a small-sized solenoid valve capable of realizing directional fluid switching, which comprises an upper valve body 5, a lower valve body 7 and a valve seat, wherein the bottom of the upper valve body 5 is fixedly connected with the top of the lower valve body 7, the bottom of the lower valve body 7 is fixedly connected with the valve seat, the connection surface of the upper valve body 5 and the lower valve body 7 is divided into a plane contact and an inclined contact, three ports are integrally formed on the outer surface of the top of the upper valve body 5, which are respectively a first port 4, a second port 401 and a third port 402, the first port 4, the second port 401 and the third port 402 are sequentially arranged along the length direction of the upper valve body 5, the first port 4, the second port 401 and the third port 402 penetrate through the outer surface of the bottom of the upper valve body 5, wherein the first port 4 penetrates through the inclined surface of the upper valve body 5, a diaphragm assembly hole is formed on the lower valve body 7, the diaphragm assembly hole, a sealing pad hole is positioned at the top of the lower valve body 7, the central axis of the sealing pad hole coincides with the central axis of the second port 401, and the mandrel hole is positioned at the bottom of the lower valve body 7, wherein, as shown in fig. 4, 5 and 6, a third port groove is further integrally formed on the side edge of the sealing pad hole of the lower valve body 7, the third port 402 is communicated with the third port groove, a branch hole is formed on the side edge of the mandrel hole, the branch hole is communicated with the mandrel hole of the lower valve body 7 and the inclined plane of the lower valve body 7, and after the upper valve body 5 and the lower valve body 7 are fixedly connected, the first port 4 and the branch hole are in a right angle;
in this embodiment, a diaphragm assembly is inserted into the lower valve body 7, as shown in fig. 8, the diaphragm assembly includes a mandrel 1, a rubber diaphragm 8 and a sealing gasket 6, the mandrel 1 is formed by integrally forming a plurality of cylinders with different sizes, the rubber diaphragm 8 is sleeved on the mandrel 1, the sealing gasket 6 is sleeved on one end of the mandrel 1, specifically, one end of the mandrel 1, on which the sealing gasket 6 is sleeved, is located in a sealing gasket hole of the diaphragm assembly, wherein the diameter of the sealing gasket hole is greater than that of the sealing gasket, the diameter of the sealing gasket is greater than that of the mandrel hole, the rubber diaphragm 8 abuts against the bottom of the lower valve body 7, a sealing gasket groove is provided at the bottom of the upper valve body 5, a central axis of the sealing gasket groove coincides with a central axis of the second port 401, the sealing gasket groove penetrates through the second port 401, the diameter of the sealing gasket groove is less than that of the sealing gasket, the sealing, the second port 401 is sealed, the first port 4 is communicated with the third port 402, the sealing gasket 6 retracts, the bottom of the sealing gasket 6 is pressed against the bottom surface of the sealing gasket hole, the first port 4 is sealed, the second port 401 is released, and the second port 401 is communicated with the third port 402;
preferably, the supporter groove has been seted up to the bottom of lower valve body 7, the axis in supporter groove and the coincidence of the axis of diaphragm subassembly, supporter groove and diaphragm subassembly link up, rubber diaphragm 8 supports in the supporter inslot, supporter inslot places back of the body and props 9, back of the body props 9 and presses rubber diaphragm 8 on the terminal surface in supporter groove, the fulcrum when back of the body props 9 and provides deformation for rubber diaphragm 8 also plays the sealed effect of lower valve body 7, wherein, the one side of back of the body props 9 is the curved surface structure, this curved surface structure is close to rubber diaphragm 8 and sets up, 1 downstream of dabber, rubber diaphragm 8 is warp downwards, 1 upstream of dabber, rubber diaphragm 8 resets 1 upstream of supplementary dabber because of the elasticity reason, reduce the power consumption of 1 motion of dabber.
In this embodiment, as shown in fig. 7, a protrusion is disposed on the valve seat, after the lower valve body 7 is connected to the valve seat, the protrusion presses against the bottom surface of the back support 9, so that the back support 9 is fixed in the support groove and does not move, an electromagnet 12 is disposed in the inner cavity of the valve seat, a stop iron is fixed in the inner cavity of the electromagnet 12, an armature 10 is disposed in the inner cavity of the electromagnet 12 and located between the stop iron and the lower valve body 7, one end of the armature 10 is in threaded connection with the mandrel 1, an opening is disposed at the other end of the armature 10, a pressure spring 11 is disposed in the opening, after the electromagnet 12 is powered on, the armature 10 is actuated to move downward, the pressure spring 11 contacts with the stop iron, the pressure spring 11 starts to compress, and the armature 10 drives the mandrel.
In the preferred embodiment of this embodiment, as shown in fig. 3, the upper valve body 7 is connected with the lower valve body 7 by screws 14, which facilitates maintenance.
In a preferred embodiment of the present embodiment, two first sealing rings 3 are arranged between the upper valve body 5 and the lower valve body 7, wherein one first sealing ring 3 is located on a plane between the upper valve body 5 and the lower valve body 7, and the other first sealing ring 3 is located on an inclined plane between the upper valve body 5 and the lower valve body 7.
In the preferred embodiment of the present embodiment, a second sealing ring 2 is arranged between the lower valve body 7 and the valve seat, and the liquid in the lower valve body 7 is prevented from flowing into the valve seat.
In the preferred embodiment of this embodiment, the outside cladding of electro-magnet 12 becomes the package electro-magnet, and the electro-magnet carries out the plastic envelope, and first sealing washer 3 and second sealing washer 2 and package electro-magnet make the protection level of this device satisfy IP 65.
In this embodiment, as shown in fig. 7, the cross-sectional length of the small-sized solenoid valve is 21mm or less, and the cross-sectional width is 16mm or less.
Specifically, the utility model provides a pair of can realize the directional small-size solenoid valve who switches of fluid's concrete theory of operation as follows:
the electromagnet 12 is electrified through the lead 13, the plastic-coated electromagnet attracts the armature 10 to move downwards by virtue of electromagnetic force, the armature 10 drives the mandrel 1 to move downwards and compress the pressure spring 11, the rubber diaphragm 8 on the mandrel 1 deforms, the rubber diaphragm 8 bends downwards, the sealing gasket 6 on the mandrel 1 is pressed against the bottom surface of the sealing gasket hole to seal the mandrel hole, the first port 4 is blocked, the second port 401 is communicated with the third port 402, and liquid can flow to the second port 401 from the third port 402 of the upper valve body 5; under the circumstances of outage, electro-magnet 12 loses the electricity, pressure spring 11 reset motion, promote armature 10 rebound, armature 10 drives dabber 1 rebound, sealed pad 6 leaves the bottom in sealing pad hole, the shape resumes of rubber diaphragm 8, sealed pad 6 stretches out lower valve body 7, the top of sealed pad 6 pushes up at the terminal surface of seal groove, second port 401 is blocked, first port 4 is opened, first port 4 and third port 402 switch on, liquid is by the third port 402 flow direction first port 4 of last valve body 5.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solution of the present invention, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The small electromagnetic valve capable of realizing directional switching of fluid is characterized by comprising an upper valve body (5), a lower valve body (7) and a valve seat, wherein the bottom of the upper valve body (5) is fixedly connected with the top of the lower valve body (7), the surface of the upper valve body (5) in contact with the lower valve body (7) is divided into a plane and an inclined plane, the bottom of the lower valve body (7) is fixedly connected with the valve seat, a first port (4), a second port (401) and a third port (402) are arranged on the outer surface of the top of the upper valve body (5), the first port (4) penetrates through the inclined plane of the upper valve body (5), a diaphragm assembly hole is formed in the lower valve body (7), the circle center of the diaphragm assembly hole is coincided with the circle center of the second port (401), the diaphragm assembly hole comprises a sealing pad hole and a mandrel hole which are integrally formed, and the sealing pad hole is formed in the top of the lower valve body (7), the bottom in valve body (7) under is seted up in the dabber hole, the diameter in gasket hole is greater than the diameter in dabber hole, the side in dabber hole is provided with a branch hole, a branch hole runs through the inclined plane of dabber hole and lower valve body, first branch hole and first port (4) vertical contact, the cross section length less than or equal to 21mm of small-size solenoid valve, the cross section width less than or equal to 16mm of small-size solenoid valve.
2. The small-sized electromagnetic valve capable of realizing directional switching of fluid is characterized in that a sealing gasket groove is further formed in the position, located at the second port (401), of the connecting surface of the upper valve body (5), the sealing gasket groove penetrates through the connecting surface of the second port (401) and the upper valve body (5), and the circle center of the sealing gasket groove is coincident with the circle center of the second port (401); and a third port groove is integrally formed in the side edge of the sealing gasket hole of the lower valve body (7), and the third port (402) is communicated with the third port groove.
3. The small-sized electromagnetic valve capable of realizing directional switching of fluid according to claim 2, further comprising a diaphragm assembly, wherein a part of the diaphragm assembly is inserted into the diaphragm assembly hole, the diaphragm assembly comprises a mandrel (1), a rubber diaphragm (8) and a sealing gasket (6), the rubber diaphragm (8) is sleeved on the mandrel (1), the rubber diaphragm (8) is located on the end surface of the mandrel hole and at the bottom of the lower valve body (7), the sealing gasket (6) is sleeved on one end of the mandrel (1),
when the second port (401) is sealed, the sealing gasket (6) is pressed against the end surface of the sealing gasket groove, the sealing gasket (6) is not contacted with the mandrel hole,
when the first port (4) is sealed, the sealing gasket (6) is not contacted with the sealing gasket groove, and the sealing gasket (6) is contacted with the end face of the mandrel hole.
4. The small-sized electromagnetic valve capable of realizing directional fluid switching according to claim 3, wherein a support body groove is further formed in the bottom of the lower valve body (7), a central axis of the support body groove coincides with a central axis of the diaphragm assembly hole, the rubber diaphragm (8) is arranged in the support body groove, a back support (9) is further placed in the support body groove, and a surface of the back support (9) contacting with the rubber diaphragm (8) is a curved surface.
5. A small-sized electromagnetic valve capable of realizing directional fluid switching according to claim 4 is characterized in that an electromagnet (12) is arranged in an inner cavity of the valve seat, a stop iron is fixedly arranged in an inner cavity of the electromagnet (12), an armature (10) is arranged between the stop iron and the lower valve body (7), one end of the armature (10) is in threaded connection with the mandrel (1), the other end of the armature (10) is provided with a pressure spring (11), and the armature (10) can move between the stop iron and the lower valve body (7).
6. A small-sized electromagnetic valve capable of realizing directional switching of fluid according to claim 1, characterized in that the first sealing ring (3) is disposed on the plane where the upper valve body (5) and the lower valve body (7) are contacted and the inclined plane where the upper valve body (5) and the lower valve body (7) are contacted.
7. A small-sized electromagnetic valve capable of realizing directional switching of fluid according to claim 1, characterized in that a second sealing ring (2) is placed between the lower valve body (7) and the valve seat.
8. A small-sized solenoid valve capable of realizing directional switching of fluid according to claim 1, characterized in that said upper valve body (5) and lower valve body (7) are connected by screw (14).
9. A small-sized electromagnetic valve capable of realizing directional switching of fluid according to claim 5, characterized in that the outer surface of the electromagnet (12) is coated with a plastic package layer.
10. A small-sized electromagnetic valve capable of realizing directional fluid switching according to claim 6 is characterized in that a sunken groove is arranged on the inclined surface of the lower valve body (7) and used for placing the first sealing ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497147.3U CN212868678U (en) | 2020-07-23 | 2020-07-23 | Small-sized electromagnetic valve capable of realizing directional fluid switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021497147.3U CN212868678U (en) | 2020-07-23 | 2020-07-23 | Small-sized electromagnetic valve capable of realizing directional fluid switching |
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| Publication Number | Publication Date |
|---|---|
| CN212868678U true CN212868678U (en) | 2021-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021497147.3U Active CN212868678U (en) | 2020-07-23 | 2020-07-23 | Small-sized electromagnetic valve capable of realizing directional fluid switching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508628A (en) * | 2022-03-18 | 2022-05-17 | 陕西青云智通流体控制设备有限公司 | Diaphragm type electromagnetic valve and biochemical analyzer |
-
2020
- 2020-07-23 CN CN202021497147.3U patent/CN212868678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508628A (en) * | 2022-03-18 | 2022-05-17 | 陕西青云智通流体控制设备有限公司 | Diaphragm type electromagnetic valve and biochemical analyzer |
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