CN112107381A

CN112107381A - Electromagnetic pinch valve and tooth cleaning device

Info

Publication number: CN112107381A
Application number: CN202011130044.8A
Authority: CN
Inventors: 唐鹏; 滚志雄
Original assignee: Guilin Woodpecker Medical Instruments Co Ltd
Current assignee: Guilin Woodpecker Medical Instruments Co Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2020-12-22
Anticipated expiration: 2040-10-21
Also published as: CN112107381B

Abstract

The invention discloses an electromagnetic pinch valve and a tooth cleaning device, and relates to the technical field of tooth cleaning. Including cylinder manifold and setting a plurality of solenoid valves on the cylinder manifold, be provided with the sprue on the cylinder manifold, and respectively with a plurality of first chock plugs of sprue intercommunication, still be provided with a plurality of chock passageways on the cylinder manifold, the chock passageway with first chock plug one-to-one, so that the chock passageway passes through first chock plug with the sprue intercommunication, the solenoid valve include with first chock plug complex first sealed head, in order to control the break-make of first chock plug, still be provided with pinch valve on the cylinder manifold, pinch valve with the chock passageway intercommunication. The integrated effect can be improved, the connection form is simplified, and the stability of control is improved.

Description

Electromagnetic pinch valve and tooth cleaning device

Technical Field

The invention relates to the technical field of tooth cleaning, in particular to an electromagnetic pinch valve and a tooth cleaning device.

Background

The sand-blasting tooth-washing is to use high-pressure fluid to spray salt sand such as sodium bicarbonate, silicon dioxide and the like on the surface of the tooth to remove attachments on the surface of the tooth which are not easy to be scraped. The sand blasting can clean tea dirt, smoke dirt and food soft dirt adhered to the teeth instantly and softly, and can clean the pit and fissure gaps of the tooth surface which cannot be cleaned by the ultrasonic tooth cleaner, thereby achieving the purpose of cleaning the teeth.

In the prior art, when using a prophy device, it is common for the opening and closing of different flow paths to perform different functions of the device. When the opening or closing of the flow channel is controlled, a mechanical switch, a mechanical valve or a single electromagnetic confluence plate is usually adopted for control. The above-mentioned forms have low integration level and large occupied space, and the required control usually requires complicated pipeline connections. The on-off can not be controlled in time during on-off control, and the stability during use is influenced.

Disclosure of Invention

The invention aims to provide an electromagnetic pinch valve and a tooth cleaning device, which can improve the integration effect, simplify the connection form and improve the stability of control.

The embodiment of the invention is realized by the following steps:

in one aspect of the embodiment of the present invention, an electromagnetic pinch valve is provided, including a manifold plate and a plurality of electromagnetic valves disposed on the manifold plate, where a main flow channel and a plurality of first plugs respectively communicated with the main flow channel are disposed on the manifold plate, the manifold plate is further provided with a plurality of branch flow channels, the branch flow channels are in one-to-one correspondence with the first plugs so as to communicate the branch flow channels with the main flow channel through the first plugs, the electromagnetic valves include first sealing heads matched with the first plugs so as to control on/off of the first plugs, and the manifold plate is further provided with pinch valves communicated with the branch flow channels.

Optionally, the solenoid valve includes a valve body, an electromagnetic coil disposed in the valve body, and a core engaged with the electromagnetic coil, and the first sealing head is disposed in the core.

Optionally, the solenoid valve further includes a pressure relief channel and a second plug communicated with one end of the pressure relief channel, the second plug is communicated with the branch flow channel, the solenoid valve further includes a second sealing head arranged in the core, and the second sealing head is matched with the second plug and used for controlling on/off of the second plug.

Optionally, an elastic member is further disposed in the core, and the elastic member is connected to the first sealing head and the second sealing head, respectively.

Optionally, a pressure relief pipeline is further arranged on the electromagnetic valve, and the pressure relief pipeline is communicated with the pressure relief channel.

Optionally, the pinch valve includes a housing, a piston is arranged in the housing, the pinch valve is communicated with the branch flow channel through the housing, an ejector rod is arranged on the piston, a channel for penetrating a hose is further arranged on the housing, the ejector rod can extrude the hose to enable the hose to be stopped, a return spring is further arranged in the housing, and the return spring is used for enabling the ejector rod to move in a direction away from the hose to enable the hose to circulate.

Optionally, the piston is slidably connected to the ejector rod, a buffer spring is arranged between the piston and the ejector rod, and two ends of the buffer spring are respectively connected to the piston and the ejector rod.

Optionally, the outer ring of the piston is provided with a sealing ring.

Optionally, a stop pin is further disposed in the housing, and the stop pin is located on a side wall of the channel and is opposite to the ejector rod.

In another aspect of an embodiment of the present invention, there is provided a dental cleaning device comprising the electromagnetic pinch valve as described in any one of the above.

The embodiment of the invention has the beneficial effects that:

according to the electromagnetic pinch valve and the tooth cleaning device provided by the embodiment of the invention, the electromagnetic valves can be highly integrated through the collecting plate and the plurality of electromagnetic valves arranged on the collecting plate, so that the electromagnetic pinch valve is more compact as a whole, the space is saved, and the space utilization rate is increased. Through the sprue that sets up on the cylinder manifold to and respectively with the first chock plug of sprue intercommunication, the solenoid valve includes the first head that seals with first chock plug complex, can control the break-make of first chock plug through first head that seals, because the runner with first chock plug one-to-one, thereby can control the circulation of fluid between first chock plug and the runner or end. By adopting the form, the internal complex pipeline arrangement can be reduced, and the production and assembly are convenient. Through the pinch valve which is arranged on the confluence plate and communicated with the branch flow channel, the action of the pinch valve can be controlled through the circulation or the cut-off of fluid between the first plug head and the branch flow channel, and the required tube clamping control is realized. Therefore, the integration effect can be improved, the connection form is simplified, and the stability of control is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of an electromagnetic pinch valve according to an embodiment of the present invention;

FIG. 2 is a second schematic structural view of an electromagnetic pinch valve according to an embodiment of the present invention;

FIG. 3 is a schematic view of a pinch valve and a hose according to an embodiment of the present invention;

fig. 4 is a second schematic view of the structure of the pinch valve and the hose according to the embodiment of the present invention.

Icon: 100-electromagnetic pinch valve; 105-a hose; 110-a bus bar; 112-a main flow channel; 1122-main channel interface; 114-a first plug; 116-branch flow channel; 1162-a tributary channel interface; 120-a solenoid valve; 121-a valve body; 122-a first sealing head; 123-an electromagnetic coil; 124-iron core; 125-pressure relief channel; 126-a second plug; 127-a second sealing head; 129-pressure relief piping; 128-a resilient member; 130-a pinch valve; 131-a housing; 1312-a gas chamber; 132-a piston; 133-a mandril; 134-channel; 135-a return spring; 136-a buffer spring; 137-sealing ring; 138-stop pins; 139-stop collar.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present embodiment provides an electromagnetic pinch valve 100, including a manifold plate 110 and a plurality of electromagnetic valves 120 disposed on the manifold plate 110, a main flow channel 112 and a plurality of first plugs 114 respectively communicated with the main flow channel 112 are disposed on the manifold plate 110, a plurality of branch flow channels 116 are further disposed on the manifold plate 110, the branch flow channels 116 are in one-to-one correspondence with the first plugs 114, so that the branch flow channels 116 are communicated with the main flow channel 112 through the first plugs 114, the electromagnetic valves 120 include first sealing heads 122 matched with the first plugs 114, so as to control on/off of the first plugs 114, a pinch valve 130 is further disposed on the manifold plate 110, and the pinch valve 130 is communicated with the branch flow channels 116.

Specifically, the manifold plate 110 is provided with a main flow channel 112, and the main flow channel 112 may be communicated with a fluid source through a main flow channel interface 1122, so as to supply fluid into the main flow channel 112. It is understood that in the present embodiment, the fluid may be gas or hydraulic oil, etc. to control the operation of the pinch valve 130 by the pressure generated by the fluid. Thereby realizing the diversion of the fluid and the on-off control of the pipeline to be controlled.

The plurality of first plugs 114 are respectively communicated with the main flow passage 112, and the plurality of electromagnetic valves 120 on the manifold plate 110 are respectively in one-to-one correspondence with the first plugs 114 to control on/off of the first plugs 114. Since the plurality of branch runners 116 provided on the junction plate 110 correspond to the first plugs 114 one by one, the on-off of the branch runners 116 can be controlled by the on-off of the first plugs 114. The pinch valve 130 provided in the manifold plate 110 communicates with the branch flow path 116, and thus, the pinch valve 130 communicating with the branch flow path 116 can be controlled to operate.

It is understood that to facilitate connection of the bypass channel 116 to the pinch valve 130, a bypass channel interface 1162 may be provided at the outlet of the bypass channel 116, such that the pinch valve 130 communicates with the bypass channel 116 through the bypass channel interface 1162. In order to improve the flexibility in use, in practical use, not every branch flow passage 116 is communicated with the pinch valve 130, and a plug may be provided at a position where the branch flow passage 116 is not communicated with the pinch valve 130 to ensure the required airtightness.

In addition, the solenoid valve 120, the branch flow channel 116 and the pinch valve 130 are in a one-to-one correspondence relationship, so that the solenoid valve 120 controls the on-off of the branch flow channel 116 to control the on-off of the branch flow channel 116 and the pinch valve 130, thereby controlling the action of the pinch valve 130. It should be noted that, in the embodiment of the present application, the number of the electromagnetic valves 120 and the branch runners 116 is not specifically limited, and may be set to two, three, or five, for example, and the number may be flexibly set according to actual needs. The pinch valve 130 can be connected with the branch flow passage 116 to form a desired connection relationship according to actual needs.

The solenoid valve 120 controls the on/off of the first plug 114 through a first sealing head 122 matched with the first plug 114, and the first sealing head 122 can be made of flexible materials such as resin or rubber. When the first plug 114 needs to be conducted, the first sealing head 122 is controlled to be away from the first plug 114. When the first plug 114 needs to be stopped, the first sealing head 122 is controlled to abut against the first plug 114, so that the required stopping function is realized.

According to the electromagnetic pinch valve 100 provided by the embodiment of the invention, the manifold plate 110 and the plurality of electromagnetic valves 120 arranged on the manifold plate 110 can highly integrate the electromagnetic valves 120, so that the electromagnetic pinch valve 100 is more compact as a whole, the space is saved, and the space utilization rate is increased. Through the main flow channel 112 arranged on the confluence plate 110 and the first plugs 114 respectively communicated with the main flow channel 112, the solenoid valve 120 includes the first sealing heads 122 matched with the first plugs 114, and the on-off of the first plugs 114 can be controlled through the first sealing heads 122, and the flow of the fluid between the first plugs 114 and the branch flow channels 116 can be controlled or stopped because the branch flow channels 116 are in one-to-one correspondence with the first plugs 114. By adopting the form, the internal complex pipeline arrangement can be reduced, and the production and assembly are convenient. By the pinch valve 130 provided in the manifold plate 110 and communicating with the branch flow path 116, the movement of the pinch valve 130 can be controlled by the flow of the fluid between the first plug 114 and the branch flow path 116 or by the cutoff of the fluid, and the desired pinch control can be achieved. Therefore, the integration effect can be improved, the connection form is simplified, and the stability of control is improved.

As shown in fig. 2, the solenoid valve 120 includes a valve body 121, an electromagnetic coil 123 disposed in the valve body 121, and an iron core 124 fitted with the electromagnetic coil 123, and a first seal head 122 is disposed in the iron core 124.

Specifically, when the solenoid coil 123 is not energized, the plunger 124 is in a first state in which the first sealing head 122 is in contact with the first plug 114 to seal the fluid in the main flow passage 112 from flowing through the branch flow passage 116 to the pinch valve 130. When the electromagnetic coil 123 is energized, the iron core 124 is in a second state under the action of the electromagnetic coil 123, in which the first sealing head 122 is away from the first plug head 114, so that the fluid in the main flow passage 112 can flow to the pinch valve 130 through the branch flow passage 116, and the operation of the pinch valve 130 is controlled by the pressure of the fluid.

As shown in fig. 2, the solenoid valve 120 further includes a pressure relief channel 125, and a second plug 126 communicated with one end of the pressure relief channel 125, where the second plug 126 is communicated with the bypass channel 116, and the solenoid valve 120 further includes a second sealing head 127 disposed in the core 124, where the second sealing head 127 is matched with the second plug 126 to control on/off of the second plug 126.

Specifically, when the electromagnetic coil 123 is not energized, the plunger 124 is in a first state in which the first sealing head 122 is in contact with the first plug 114 to seal the main flow channel 112 from the fluid flowing to the pinch valve 130 through the branch flow channel 116, and the second sealing head 127 is away from the second plug 126 to guide the fluid in the branch flow channel 116 into the pressure relief channel 125 through the second plug 126. When the electromagnetic coil 123 is energized, the iron core 124 is in a second state under the action of the electromagnetic coil 123, in which the first sealing head 122 is away from the first plug 114, so that the fluid in the main flow passage 112 can flow to the pinch valve 130 through the branch flow passage 116, and the second sealing head 127 is in contact with the second plug 126 for sealing, thereby preventing the fluid in the branch flow passage 116 from being introduced into the pressure relief passage 125, and controlling the operation of the pinch valve 130 through the pressure of the fluid.

As shown in fig. 2, an elastic member 128 is further disposed in the core 124, and the elastic member 128 is connected to the first sealing head 122 and the second sealing head 127, respectively.

Specifically, the arrangement form of the elastic element 128 is not particularly limited in the embodiment of the present application, for example, the elastic element 128 may be an elastic sheet disposed in the core 124, and the elastic sheet includes a first elastic arm and a second elastic arm, where the first elastic arm abuts against the first sealing head 122, the second elastic arm abuts against the second sealing head 127, when the first sealing head 122 abuts against the first plug 114, or the second sealing head 127 abuts against the second plug 126, there is a certain elastic abutting force during contact, which is beneficial to improving the stability of contact, and also can avoid an excessive contact force when the first sealing head 122 abuts against the first plug 114, or when the second sealing head 127 abuts against the second plug 126, which is beneficial to prolonging the service lives of the first sealing head 122 and the second sealing head 127. Similarly, the elastic member 128 may also adopt a compression elasticity disposed in the core 124 to provide a required elastic force through a compression spring, and the arrangement is similar to that of an elastic sheet and will not be described herein again.

As shown in fig. 2, the solenoid valve 120 is further provided with a pressure relief pipe 129, and the pressure relief pipe 129 is communicated with the pressure relief passage 125. Thus, when a liquid fluid, such as hydraulic oil, is used, the liquid fluid introduced into the pressure relief channel 125 can flow back to the oil tank through the pressure relief pipe 129 for recycling. When a gas fluid, such as compressed air, is used, the gas fluid introduced into the pressure relief channel 125 can be discharged to the air through the pressure relief duct 129.

As shown in fig. 2, 3 and 4, the pinch valve 130 includes a housing 131, a piston 132 is disposed in the housing 131, the pinch valve 130 is communicated with the branch channel 116 through the housing 131, a plunger 133 is disposed on the piston 132, a channel 134 for passing the hose 105 is further disposed on the housing 131, the plunger 133 can press the hose 105 to stop the hose 105, and a return spring 135 is further disposed in the housing 131, and the return spring 135 is configured to move the plunger 133 in a direction away from the hose 105 to circulate the hose 105.

Specifically, when the pinch valve 130 communicates with the branch channel 116 through the housing 131, the piston 132 and the housing 131 form an air chamber 1312 therein. When the solenoid valve 120 corresponding to the pinch valve 130 is energized, the plunger 124 moves to separate the first sealing head 122 from the first plug 114, and at this time, the fluid in the main flow channel 112 enters the air chamber 1312 through the branch flow channel 116, and pushes the piston 132 to move. Because the piston 132 is provided with the push rod 133, when the piston 132 moves, the push rod 133 is driven to press the hose 105, so that the hose 105 is cut off. When the solenoid valve 120 corresponding to the pinch valve 130 is energized, the plunger 124 acts to seal the first sealing head 122 in contact with the first plug 114, and the second sealing head 127 is away from the second plug 126. At this time, the fluid in the main flow passage 112 cannot enter the air chamber 1312 through the branch flow passage 116, and the fluid remaining in the air chamber 1312 is introduced into the pressure relief passage 125 through the second plug 126. Through the return spring 135 arranged in the housing 131, after the fluid in the air chamber 1312 is led out, the pressure in the air chamber 1312 is reduced, and the piston 132 is driven to move back under the action of the return spring 135, so that the push rod 133 releases the extrusion of the hose 105, and the hose 105 is conducted.

As shown in fig. 2, a stop sleeve 139 is disposed in the housing 131, and the return spring 135 may be a compression spring, one end of which abuts against the stop sleeve 139, and the other end of which abuts against the piston 132, so as to provide an elastic force for the piston 132 to slide in the direction of the air chamber 1312.

As shown in fig. 2 and 4, the piston 132 is slidably connected to the ram 133, a buffer spring 136 is disposed between the piston 132 and the ram 133, and two ends of the buffer spring 136 are respectively connected to the piston 132 and the ram 133.

Specifically, the buffer spring 136 disposed between the piston 132 and the plunger 133 can prevent the excessive pressing force from being generated on the hose 105 when the movement of the piston 132 is large due to the excessive pressure in the air chamber 1312 when the plunger 133 is pushed by the piston 132. Through the cushioning effect of buffer spring 136, partial extrusion force can be neutralized through the elastic deformation of buffer spring 136, which is favorable for improving the stability during control.

As shown in fig. 4, the outer ring of the piston 132 is provided with a seal 137. Thus, the sealing performance between the piston 132 and the housing 131 can be improved, the leakage of the fluid is avoided, and the stability of the control is ensured.

As shown in fig. 2 and 4, a stop pin 138 is further disposed in the housing 131, and the stop pin 138 is disposed on a side wall of the channel 134 and opposite to the push rod 133.

Specifically, the form of the stopper pin 138 is not particularly limited as long as the stability of the hose 105 at the time of stopping can be improved. For example, the stop pin 138 may be in the form of a cylinder, a quadrangular prism, or the like, such that the stop pin 138 and the top bar 133 form a line contact therebetween. Thus, when the push rod 133 pushes the hose 105, the hose 105 can be stopped more effectively.

The embodiment of the invention also discloses a tooth cleaning device which comprises the electromagnetic pinch valve 100 in the embodiment. The prophy angle incorporates the same structure and benefits as the solenoid pinch valve 100 of the previous embodiment. The structure and advantages of the solenoid valve 100 have been described in detail in the foregoing embodiments, and are not described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an electromagnetism pinch valve, its characterized in that includes the cylinder manifold and sets up a plurality of solenoid valves on the cylinder manifold, be provided with the sprue on the cylinder manifold, and respectively with a plurality of chock plugs of sprue intercommunication, still be provided with a plurality of runners on the cylinder manifold, runner with first chock plug one-to-one, so that runner passes through first chock plug with the sprue intercommunication, the solenoid valve include with first chock plug complex first sealed head, in order to control the break-make of first chock plug, still be provided with pinch valve on the cylinder manifold, pinch valve with the chock plug intercommunication.

2. The solenoid pinch valve of claim 1, wherein the solenoid valve comprises a valve body, a solenoid coil disposed within the valve body, and a core engaged with the solenoid coil, the first sealing head being disposed within the core.

3. The solenoid pinch valve of claim 2, wherein the solenoid valve further comprises a pressure relief channel and a second plug communicated with one end of the pressure relief channel, the second plug is communicated with the bypass channel, and the solenoid valve further comprises a second sealing head disposed in the core, and the second sealing head is matched with the second plug and used for controlling the on-off of the second plug.

4. The solenoid pinch valve of claim 3, wherein an elastic member is further disposed within the core, the elastic member being coupled to the first sealing head and the second sealing head, respectively.

5. The electromagnetic pinch valve according to claim 3, wherein the electromagnetic valve is further provided with a pressure relief pipeline, and the pressure relief pipeline is communicated with the pressure relief channel.

6. The electromagnetic pinch valve according to any one of claims 1 to 5, wherein the pinch valve comprises a housing, a piston is arranged in the housing, the pinch valve is communicated with the branch flow passage through the housing, a push rod is arranged on the piston, a passage for passing a hose is further arranged on the housing, the push rod can press the hose to stop the hose, and a return spring is further arranged in the housing and used for enabling the push rod to move in a direction away from the hose to enable the hose to circulate.

7. The electromagnetic pinch valve of claim 6, wherein the piston is slidably connected to the mandrel, and a buffer spring is disposed between the piston and the mandrel, and two ends of the buffer spring are connected to the piston and the mandrel respectively.

8. The solenoid pinch valve of claim 6, wherein an outer ring of the piston is provided with a sealing ring.

9. The solenoid pinch valve of claim 6, wherein a stop pin is further disposed within the housing, the stop pin being located on a sidewall of the channel and opposite the stem.

10. A dental cleaning device comprising the electromagnetic pinch valve of any one of claims 1-9.