CN112107381B - Electromagnetic pinch valve and tooth cleaning device - Google Patents

Abstract

The invention discloses an electromagnetic pinch valve and a tooth cleaning device, and relates to the technical field of tooth cleaning. Including the busbar board and set up a plurality of solenoid valves on the busbar board, be provided with the sprue on the busbar board, and respectively with a plurality of first chock plugs of sprue intercommunication, still be provided with a plurality of branch runners on the busbar, branch runner with first chock plug one-to-one, so that branch runner passes through first chock plug with the sprue intercommunication, the solenoid valve include with first chock plug complex first sealing head, with control the break-make of first chock plug, still be provided with pinch valve on the busbar board, pinch valve with branch runner 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 uses high pressure fluid to spray special sodium bicarbonate, silicon dioxide and other salt sand onto the tooth surface to eliminate the attachments on the tooth surface. The sand blasting can instantly and softly clean tea dirt, tobacco dirt and food soft dirt attached to teeth, and can clean the pit gaps of the tooth surface which cannot be achieved by the ultrasonic tooth cleaner, thereby achieving the aim of cleaning the teeth.

In the prior art, when using a prophy device, the opening and closing of different flow channels typically achieve different functions of the device. When controlling the opening or closing of the flow channel, a mechanical switch, a mechanical valve or a single electromagnetic confluence plate is generally adopted for control. The integration level is not high by adopting the form, the occupied space is large, and complex pipeline connection is usually required for realizing the required control. The on-off control can not be controlled in time, and the stability in use is affected.

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 control stability.

Embodiments of the present invention are implemented as follows:

In one aspect of the embodiment of the invention, an electromagnetic pinch valve is provided, which comprises a confluence plate and a plurality of electromagnetic valves arranged on the confluence plate, wherein a main runner and a plurality of first plugs communicated with the main runner are arranged on the confluence plate, a plurality of branch runners are also arranged on the confluence plate, the branch runners are in one-to-one correspondence with the first plugs so that the branch runners are communicated with the main runner through the first plugs, the electromagnetic valves comprise first sealing heads matched with the first plugs so as to control the on-off of the first plugs, and pinch valves are also arranged on the confluence plate and are communicated with the branch runners.

Optionally, the electromagnetic valve comprises a valve body, an electromagnetic coil arranged in the valve body and an iron core matched with the electromagnetic coil, and the first sealing head is arranged in the iron core.

Optionally, the solenoid valve still includes the pressure release passageway, and with the second chock plug of pressure release passageway one end intercommunication, the second chock plug with the branch flow way intercommunication, the solenoid valve still includes the second sealing head that sets up in the iron core, the second sealing head with the second chock plug cooperation is used for the control the break-make of second chock plug.

Optionally, an elastic element is further disposed in the iron core, and the elastic element is respectively connected with the first sealing head and the second sealing head.

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 the casing, be provided with the piston in the casing, the pinch valve passes through the casing with the branch runner communicates, be provided with the ejector pin on the piston, still be provided with the passageway that is used for wearing to establish the hose on the casing, the ejector pin can extrude the hose, so that the hose is blocked, still be provided with reset spring in the casing, reset spring is used for making the ejector pin to keeping away from the direction motion of hose, so that the hose circulation.

Optionally, the piston is connected with the ejector rod in a sliding way, a buffer spring is arranged between the piston and the ejector rod, and two ends of the buffer spring are respectively connected with the piston and the ejector rod.

Optionally, a sealing ring is arranged on the outer ring of the piston.

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 disposed opposite to the ejector rod.

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

The beneficial effects of the embodiment of the invention include:

According to the electromagnetic pinch valve and the tooth cleaning device, the electromagnetic valves can be highly integrated through the confluence plate and the electromagnetic valves arranged on the confluence plate, so that the electromagnetic pinch valve is compact, the space is saved, and the space utilization rate is increased. Through the sprue that sets up on the busbar to and with the first chock plug of sprue intercommunication respectively, the solenoid valve include with first chock plug complex first sealing head, can control the break-make of first chock plug through first sealing head, owing to branch channel and first chock plug one-to-one, thereby can control the circulation of fluid or stop between first chock plug and the branch channel. By adopting the form, the arrangement of the internal complex pipelines can be reduced, and the production and the assembly are convenient. Through the pinch valve that sets up on the confluence plate and communicate with the tributary way, can control the action of pinch valve through the circulation or the shutoff of fluid between first chock plug and the tributary way, realize required pinch control. Therefore, the integration effect can be improved, the connection mode 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 that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

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

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

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

Icon: 100-electromagnetic pinch valves; 105-hose; 110-a busbar; 112-primary flow path; 1122-primary flow path interface; 114-a first plug; 116-branch flow passage; 1162—a tributary interface; 120-electromagnetic valve; 121-a valve body; 122-a first sealing head; 123-electromagnetic coils; 124-iron core; 125-pressure relief channel; 126-a second plug; 127-second sealing head; 129-pressure relief piping; 128-an elastic member; 130-pinch valves; 131-a housing; 1312-air chambers; 132-a piston; 133-ejector pins; 134-channel; 135-a return spring; 136-a buffer spring; 137-sealing ring; 138-stop pin; 139-stop collar.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the 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 invention, as 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 made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, the present embodiment provides an electromagnetic pinch valve 100, which includes a manifold plate 110 and a plurality of electromagnetic valves 120 disposed on the manifold plate 110, wherein a main flow channel 112 and a plurality of first plug heads 114 respectively communicating 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 plug heads 114, so that the branch flow channels 116 communicate with the main flow channel 112 through the first plug heads 114, the electromagnetic valves 120 include first sealing heads 122 matched with the first plug heads 114 to control on-off of the first plug heads 114, pinch valves 130 are further disposed on the manifold plate 110, and the pinch valves 130 communicate with the branch flow channels 116.

Specifically, the manifold plate 110 is provided with a primary channel 112, and the primary channel 112 may be in communication with a fluid source through a primary channel interface 1122 to facilitate fluid supply into the primary channel 112. It will be appreciated that in this embodiment, the fluid may be a liquid such as a gas or hydraulic oil to control the actuation of the pinch valve 130 by the pressure created by the fluid. Thereby realizing the diversion of fluid and the on-off control of the needed control pipeline.

The plurality of first plugs 114 are respectively communicated with the main flow channels 112, and the plurality of electromagnetic valves 120 on the bus plate 110 are respectively in one-to-one correspondence with the first plugs 114 so as to control the on-off of the first plugs 114. Because the plurality of branch flow passages 116 arranged on the bus plate 110 are in one-to-one correspondence with the first plugs 114, the on-off of the branch flow passages 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 passage 116, and thus the pinch valve 130 communicating with the branch flow passage 116 can be controlled to operate.

It will be appreciated that, to facilitate connection of the branch flow channel 116 to the pinch valve 130, a branch flow channel interface 1162 may be provided at the outlet of the branch flow channel 116, such that the pinch valve 130 communicates with the branch flow channel 116 through the branch flow channel interface 1162. To promote flexibility in use, in practice, not every branch flow passage 116 communicates with the pinch valve 130, and a plug may be provided at a position where the branch flow passage 116 does not communicate with the pinch valve 130 to ensure the desired air tightness.

In addition, the solenoid valve 120, the branch flow passage 116 and the pinch valve 130 are in one-to-one correspondence, so that the solenoid valve 120 controls the on-off of the branch flow passage 116 to control the on-off of the branch flow passage 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 solenoid valve 120 and the branch flow channel 116 is not specifically limited, and may be set to two, three or five values, for example, and may be flexibly set according to actual needs. Pinch valve 130 may also be connected to branch channel 116 in a desired connection as desired.

The electromagnetic 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 is required to be conducted, the first sealing head 122 is controlled to be far away from the first plug 114. When the first plug 114 is required to be closed, the first sealing head 122 is controlled to abut against the first plug 114, so that the required closing function is realized.

According to the electromagnetic pinch valve 100 provided by the embodiment of the invention, through the confluence plate 110 and the plurality of electromagnetic valves 120 arranged on the confluence plate 110, the electromagnetic valves 120 can be highly integrated, so that the electromagnetic pinch valve 100 is more compact in whole, the space saving is facilitated, and the space utilization rate is increased. Through the sprue 112 that sets up on the header 110 and the first plug 114 that communicates with sprue 112 respectively, solenoid valve 120 includes with first plug 114 complex first sealing head 122, can control the break-make of first plug 114 through first sealing head 122, because branch flow channel 116 and first plug 114 one-to-one to can control the circulation or the shutoff of fluid between first plug 114 and the branch flow channel 116. By adopting the form, the arrangement of the internal complex pipelines can be reduced, and the production and the assembly are convenient. By providing the pinch valve 130 in communication with the branch flow passage 116 on the manifold plate 110, the movement of the pinch valve 130 can be controlled by the flow or stop of the fluid between the first plug 114 and the branch flow passage 116, thereby realizing the desired pinch control. Therefore, the integration effect can be improved, the connection mode is simplified, and the stability of control is improved.

As shown in fig. 2, the solenoid valve 120 includes a valve body 121, a solenoid coil 123 disposed within the valve body 121, and a core 124 mated with the solenoid coil 123, the first sealing head 122 being disposed within the core 124.

Specifically, when the solenoid 123 is not energized, the plunger 124 is in a first state in which the first seal head 122 is in contact with the first plug 114 to seal against fluid in the primary flowpath 112 flowing through the branch flowpath 116 to the pinch valve 130. When the solenoid 123 is energized, the iron core 124 is in a second state under the action of the solenoid 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 pinch valve 130 is controlled to act by the pressure of the fluid.

As shown in fig. 2, the electromagnetic valve 120 further includes a pressure release channel 125, and a second plug 126 that is communicated with one end of the pressure release channel 125, where the second plug 126 is communicated with the branch channel 116, and the electromagnetic valve 120 further includes a second sealing head 127 disposed in the iron core 124, and the second sealing head 127 cooperates with the second plug 126 to control on-off of the second plug 126.

Specifically, when the electromagnetic coil 123 is not energized, the iron core 124 is in a first state, in which the first sealing head 122 contacts and seals with the first plug 114, so that the fluid in the main flow channel 112 cannot flow to the pinch valve 130 through the branch flow channel 116, and the second sealing head 127 is far away from the second plug 126, so that the fluid in the branch flow channel 116 can be led into the pressure release 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, and in this state, the first sealing head 122 is far 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 sealing with the second plug 126, so that the fluid in the branch flow passage 116 is prevented from being led into the pressure release passage 125, and the action of the pinch valve 130 is controlled by 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 member 128 is not specifically limited, and the elastic member 128 may be, for example, an elastic sheet disposed in the iron core 124, where 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, and the second elastic arm abuts against the second sealing head 127, 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, a certain elastic abutting force exists during contact, which is favorable for improving the stability of contact, and also can avoid that the 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 is too large, which is favorable for prolonging the service lives of the first sealing head 122 and the second sealing head 127. Likewise, the elastic member 128 may also employ compression elasticity disposed in the core 124 to provide a desired elastic force by the compression spring, which is similar to the spring plate, and will not be described herein.

As shown in fig. 2, the solenoid valve 120 is further provided with a pressure relief pipe 129, and the pressure relief pipe 129 communicates 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 passage 125 may flow back to the tank through the pressure relief pipe 129 for recycling. When a gaseous fluid, such as compressed air, is used, the gaseous fluid introduced into the pressure relief passage 125 may be vented to the atmosphere through the pressure relief conduit 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 push rod 133 is disposed on the piston 132, a channel 134 for penetrating the hose 105 is further disposed on the housing 131, the push rod 133 can squeeze the hose 105 to stop the hose 105, a return spring 135 is further disposed in the housing 131, and the return spring 135 is used for moving the push rod 133 in a direction away from the hose 105 to circulate the hose 105.

Specifically, when the pinch valve 130 communicates with the branch flow passage 116 through the housing 131, the piston 132 and the housing 131 have an air chamber 1312 formed therein. When the solenoid valve 120 corresponding to the pinch valve 130 is energized, the iron core 124 acts to move the first sealing head 122 away 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 ejector rod 133, when the piston 132 moves, the ejector rod 133 is driven to squeeze the hose 105, so that the hose 105 is blocked. When the solenoid valve 120 corresponding to the pinch valve 130 is energized, the plunger 124 acts to contact and seal the first sealing head 122 with the first plug 114, and the second sealing head 127 is remote 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 retained in the air chamber 1312 is introduced into the pressure release passage 125 through the second plug 126. Through the reset spring 135 arranged in the shell 131, after the fluid in the air chamber 1312 is led out, the pressure in the air chamber 1312 is reduced, and under the action of the reset spring 135, the piston 132 is driven to move back, so that the ejector rod 133 releases the extrusion of the hose 105, and the hose 105 is conducted.

As shown in fig. 2, a stop collar 139 is disposed in the housing 131, and the return spring 135 may be a compression spring, where one end of the compression spring abuts against the stop collar 139 and the other end 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 with the ejector rod 133, and a buffer spring 136 is disposed between the piston 132 and the ejector rod 133, and two ends of the buffer spring 136 are connected with the piston 132 and the ejector rod 133, respectively.

Specifically, by the buffer spring 136 provided between the piston 132 and the ram 133, when the ram 133 is pushed by the piston 132, it is possible to avoid an excessive pressing force to the hose 105 when the movement of the piston 132 is large due to an excessive pressure in the air chamber 1312. Through the cushioning effect of the buffer spring 136, the extrusion force of a part can be neutralized through the elastic deformation of the buffer spring 136, which is beneficial to improving the stability during control.

As shown in fig. 4, the outer ring of the piston 132 is provided with a seal ring 137. In this way, the tightness between the piston 132 and the housing 131 can be improved, avoiding leakage of fluid, and ensuring the stability of control is facilitated.

As shown in fig. 2 and 4, a stopper pin 138 is further disposed in the housing 131, and the stopper pin 138 is located on a side wall of the passage 134 and is disposed opposite to the ejector rod 133.

Specifically, the form of the stopper pin 138 is not particularly limited in the present application, as long as the stability of the hose 105 at the time of shut-off can be improved. For example, the stopper pin 138 may take the form of a cylinder, or a quadrangular prism, etc., so that a line contact is formed between the stopper pin 138 and the jack 133. In this way, a better stopping action can be achieved for the hose 105 when the hose 105 is pressed by the ejector rod 133.

Embodiments of the present invention also disclose a prophy device comprising the electromagnetic pinch valve 100 of the previous embodiments. The prophy device contains the same structure and benefits as the electromagnetic pinch valve 100 of the previous embodiment. The structure and advantages of the electromagnetic pinch valve 100 have been described in detail in the foregoing embodiments, and are not described in detail herein.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The electromagnetic pinch valve is characterized by comprising a confluence plate and a plurality of electromagnetic valves arranged on the confluence plate, wherein a main runner and a plurality of first plugs communicated with the main runner are arranged on the confluence plate, a plurality of branch runners are further arranged on the confluence plate, the branch runners are in one-to-one correspondence with the first plugs so that the branch runners are communicated with the main runner through the first plugs, the electromagnetic valves comprise first sealing heads matched with the first plugs so as to control the on-off of the first plugs, and pinch valves are further arranged on the confluence plate and are communicated with the branch runners; the electromagnetic valve comprises a valve body, an electromagnetic coil arranged in the valve body and an iron core matched with the electromagnetic coil, and the first sealing head is arranged in the iron core; the electromagnetic valve further comprises a pressure release channel and a second plug communicated with one end of the pressure release channel, the second plug is communicated with the branch channel, the electromagnetic valve further comprises a second sealing head arranged in the iron core, and the second sealing head is matched with the second plug and used for controlling the on-off of the second plug; an elastic piece is further arranged in the iron core and is respectively connected with the first sealing head and the second sealing head; the electromagnetic valve is also provided with a pressure relief pipeline which is communicated with the pressure relief channel; the pinch valve comprises a shell, a piston is arranged in the shell, the pinch valve is communicated with the branch flow passage through the shell, a push rod is arranged on the piston, a passage for penetrating a hose is further arranged on the shell, the push rod can extrude the hose so that the hose is cut off, a return spring is further arranged in the shell, and the return spring is used for enabling the push rod to move away from the hose so that the hose circulates.

2. The electromagnetic pinch valve of claim 1, wherein the piston is slidably connected to the push rod, and a buffer spring is disposed between the piston and the push rod, and two ends of the buffer spring are connected to the piston and the push rod, respectively.

3. The electromagnetic pinch valve of claim 1, wherein an outer ring of the piston is provided with a sealing ring.

4. The electromagnetic pinch valve of claim 1, wherein a stop pin is further disposed within the housing, the stop pin being located on a side wall of the channel and disposed opposite the push rod.

5. A prophy device comprising an electromagnetic pinch valve according to any one of claims 1-4.