Integrated valve diaphragm protection structure applied to dental equipment

Abstract

An integrated valve diaphragm protection structure applied to dental equipment comprises a valve body, a diaphragm and a valve deck which are sequentially connected from bottom to top, a medium channel and a control hole are formed in the valve body, and the medium channel comprises an input channel and at least one branch channel. Each branch channel comprises a medium conveying hole and a medium transmission hole with the lower end communicating with the input channel. The lower end of the control hole and the lower end of the medium conveying hole are each provided with a bottom connecting hole penetrating through the bottom face of the valve body. The valve cover is provided with a control channel, the control channel comprises release grooves communicated with the control hole, and each release groove corresponds to one branch channel; the branch channel further comprises an anti-wrinkle groove formed in the top face of the valve body, and the upper end of the medium conveying hole and the upper end of the medium conveying hole both penetrate through the groove face of the anti-wrinkle groove. The deformed part of the diaphragm can be attached to the groove face of the anti-wrinkle groove, so that the probability that the diaphragm forms wrinkles in the attaching and sealing process is reduced, and the service life of the diaphragm is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of dental equipment technology, and specifically to an integrated valve diaphragm protection structure applied to dental equipment. Background Technology

[0002] An integrated valve, also known as a triple diaphragm valve, is a type of valve that uses the elastic deformation of a diaphragm to control the flow of fluid. It is commonly found in dental equipment.

[0003] Reference Figure 12 and 13 The integrated valve (triple diaphragm valve) shown includes a valve body 1, a diaphragm 2, and a valve cover 3 connected sequentially from bottom to top. The valve body 1 has a medium channel and a control port. The medium channel includes an input channel and three branch channels, each including a medium delivery port and a medium transmission port whose lower end communicates with the input channel. The valve cover 3 has a control channel, including a release groove communicating with the control port. Under normal conditions, high-pressure gas from the gas source is input into the release groove through the control port. This high-pressure gas acts on the diaphragm 2, causing it to adhere to the top surface of the valve body 1, thereby sealing the upper ends of the medium transmission port and the medium delivery port, thus disconnecting them. When the control valve depressurizes, the high-pressure gas in the release groove is released, allowing the diaphragm 2 to be pushed open by the medium flowing in from the input channel and recessed into the release groove, thus connecting the medium transmission port and the medium delivery port.

[0004] However, since the diaphragm 2 needs to undergo high-frequency deformation during repeated deformation, when high-pressure gas is reloaded in the release groove, the diaphragm 2, which has undergone plastic deformation, is difficult to fully restore its initial planar shape. This results in the diaphragm 2 not being able to form a uniform fit with the sealing surface of the valve body 1. In this state, when the deformed area of ​​the diaphragm 2 contacts the top surface of the valve body 1, a non-uniform stress distribution will be generated, forming annular wrinkles at the interface. Under periodic extrusion friction and medium pressure impact, these wrinkled areas are very prone to material fatigue, eventually leading to local perforation failure of the diaphragm 2. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides an integrated valve diaphragm protection structure for use in dental equipment.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An integrated valve diaphragm protection structure for dental equipment includes a valve body, a diaphragm, and a valve cover connected sequentially from bottom to top. The valve body has a media channel and a control port. The media channel includes an input channel and at least one branch channel. The branch channel includes a media delivery port and a media transmission port whose lower end communicates with the input channel. The lower ends of the control port and the media delivery port are both provided with bottom connection holes penetrating the bottom surface of the valve body. The valve cover has a control channel, which includes a release groove communicating with the control port. Each release groove corresponds to one branch channel. The characteristic feature is that the branch channel further includes an anti-wrinkle groove on the top surface of the valve body, and the upper ends of the media transmission port and the media delivery port both penetrate the groove surface of the anti-wrinkle groove.

[0008] In this invention, the top view cross-section of the anti-wrinkle groove corresponding to the upper and lower parts is adapted to the top view cross-section of the release groove.

[0009] In this invention, the top view cross-sectional shape of the release groove and the anti-wrinkle groove is circular or oblong.

[0010] In this utility model, the valve body is provided with a side connection hole on the left and / or right side, and the left and / or right ends of each input channel are connected to a side connection hole.

[0011] In this invention, there are three medium channels, namely a power gas channel for inputting power gas into the mobile phone, a liquid channel for inputting liquid into the mobile phone, and a cleaning gas channel for inputting cleaning gas into the mobile phone.

[0012] In this invention, the input channel of the power air passage is located on the top surface of the valve body. The upper end of the input channel is sealed by a diaphragm, and the lower end is connected to the corresponding side connection hole through the power air flow hole. The liquid passage and the cleaning air passage are located between the top and bottom surfaces of the valve body.

[0013] In this invention, each control channel has three release slots that are interconnected. The three interconnected release slots are a first release slot, a second release slot, and a third release slot. The first release slot corresponds to a branch channel of the power gas channel, the second release slot corresponds to a branch channel of the liquid channel, and the third release slot corresponds to a branch channel of the cleaning gas channel.

[0014] In this utility model, the control channel includes a gas distribution structure, which includes a gas distribution groove at the bottom of the valve cover and two gas distribution holes at the top of the valve cover that communicate with the gas distribution groove. The diaphragm is provided with control clearance holes corresponding to the control holes and the gas distribution groove. The walls of the three release grooves of the control channel are all provided with connecting air holes that communicate with the gas distribution holes.

[0015] The beneficial effects of this utility model are as follows: By setting an anti-wrinkle groove on the top surface of the valve body, the deformed part of the diaphragm can fit into the groove surface of the anti-wrinkle groove, thereby reducing the probability of wrinkles forming on the diaphragm during the sealing process, avoiding material fatigue and local perforation caused by wrinkles, effectively extending the service life of the diaphragm, and thus reducing the overall maintenance cost of the integrated valve. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional representation of the present embodiment. Figure 1 ;

[0018] Figure 2 This is a three-dimensional representation of the present embodiment. Figure 2 ;

[0019] Figure 3 This is an exploded view of this embodiment;

[0020] Figure 4 This is an exploded view of the valve body, diaphragm, and valve cover.

[0021] Figure 5 This is a top view of this embodiment;

[0022] Figure 6 for Figure 5 Sectional view of AA;

[0023] Figure 7 for Figure 5 Sectional view of BB;

[0024] Figure 8 for Figure 5 Sectional view of CC;

[0025] Figure 9 for Figure 5 Sectional view of DD;

[0026] Figure 10 for Figure 5 Sectional view of EE;

[0027] Figure 11 This is a schematic diagram showing the connection between the control port and the gas distribution port;

[0028] Figure 12 A schematic diagram of an existing integrated valve;

[0029] Figure 13 This is an exploded view of an existing integrated valve. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0031] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0032] Reference Figure 1-11 An integrated valve diaphragm protection structure for dental equipment includes a valve body 1, a diaphragm 2, and a valve cover 3 connected sequentially from bottom to top. The valve body 1 has a medium channel and a control hole 101. The medium channel includes an input channel 102 and three branch channels distributed from left to right. In other embodiments, there may be only one branch channel. The branch channel includes a medium delivery hole 103 and a medium transmission hole 104 whose lower end communicates with the input channel 102. The lower end of the control hole 101 and the lower end of the medium delivery hole 103 are provided with bottom connection holes 105 penetrating the bottom surface of the valve body 1. Each bottom connection hole 105 corresponds to a bottom connector 4. The valve cover 3 has a control channel, each control channel corresponding to a control hole 101. The control channel includes a release groove 301 communicating with the control hole 101. Each release groove 301 corresponds to a branch channel.

[0033] Furthermore, the branch channel also includes an anti-wrinkle groove 106 on the top surface of the valve body 1. The anti-wrinkle groove 106 is a concave arc surface recessed downward on the top surface of the valve body 1. The deformed part of the diaphragm 2 can fit into the groove surface of the anti-wrinkle groove 106, thus reducing the probability of wrinkles. The upper ends of the medium transmission hole 104 and the medium delivery hole 103 both penetrate the groove surface of the anti-wrinkle groove 106. The top view cross-section of the corresponding anti-wrinkle groove 106 is adapted to the top view cross-section of the release groove 301. The top view cross-sections of the release groove 301 and the anti-wrinkle groove 106 are circular or oblong, preferably oblong, with a large area, which facilitates the deformation of the diaphragm 2 into the anti-wrinkle groove 106.

[0034] In this embodiment, an anti-wrinkle groove 106 is provided on the top surface of the valve body 1, so that the deformed part of the diaphragm 2 can fit into the groove surface of the anti-wrinkle groove 106, thereby reducing the probability of the diaphragm 2 forming wrinkles during the sealing process, avoiding material fatigue and local perforation caused by wrinkles, effectively extending the service life of the diaphragm 2, and thus reducing the overall maintenance cost of the integrated valve.

[0035] A bottom connector 4 is installed in the bottom connection hole 105 at the lower end of the control hole 101. This bottom connector 4 is connected to the gas source through a conduit and a control valve. Under normal conditions, the high-pressure gas output from the gas source is input into the release groove 301 through the control hole 101. This high-pressure gas acts on the diaphragm 2, causing the diaphragm 2 to adhere to the groove surface of the anti-wrinkle groove 106, thereby sealing the upper ends of the medium transmission hole 104 and the medium delivery hole 103, thus disconnecting the medium transmission hole 104 and the medium delivery hole 103. When the control valve depressurizes, the high-pressure gas in the release groove 301 is released, allowing the diaphragm 2 to be pushed open by the medium flowing in from the input channel 102 and recessed into the release groove 301, at which point the medium transmission hole 104 and the medium delivery hole 103 are connected.

[0036] In this embodiment, the valve cover 3 is provided with a connecting through hole 304, and the valve body 1 is provided with a corresponding connecting screw hole 107. A connecting bolt threaded into the connecting screw hole 107 passes through the connecting through hole 304, thereby connecting the valve cover 3 and the valve body 1 together. Additionally, the diaphragm 2 is provided with a connecting clearance hole 202 to avoid interference with the connecting bolt. The connecting bolt is not shown in the accompanying drawings.

[0037] In this embodiment, the insertion end of the bottom connector 4 is provided with a main locking groove 41. A main locking piece 6, capable of slidingly locking into the main locking groove 41 to fix the bottom connector 4 onto the valve body 1, is slidably mounted on the bottom of the valve body 1. The main locking piece 6 is provided with the same number of main locking holes as the bottom connector 4. Each main locking hole includes a main through hole 61 and a main snap hole 62 that are sequentially connected along the sliding direction of the main locking piece 6. The insertion end of the bottom connector 4 partially passes through the main through hole 61 and is inserted into the bottom connection hole 105. When the main locking piece 6 is slid to move the main snap hole 62 to the insertion end position of the bottom connector 4, the portion of the main locking piece 6 corresponding to the outer periphery of the main snap hole 62 is locked into the main locking groove 41. Additionally, the insertion end of the bottom connector 4 is provided with a bottom mounting groove located above the main locking groove 41. A bottom sealing ring 40 for contacting and sealing with the wall of the bottom connection hole 105 is installed in the bottom mounting groove.

[0038] In this embodiment, the bottom of the valve body 1 is provided with a main insertion slot 11, and one end of the main clip 6 is provided with a main clip insertion part 63 that can be inserted into the main insertion slot 11 when the main buckle hole 62 moves to the insertion end position of the bottom connector 4, thereby improving the installation quality of the main clip 6.

[0039] In this embodiment, the bottom of the valve body 1 is provided with two opposing main limiting parts 12, and a main guiding groove is formed between the two main limiting parts 12. The other end of the main clamping piece 6 is provided with a main guiding part 64 that slides in the main guiding groove, thereby improving the sliding positioning quality of the main clamping piece 6.

[0040] In this embodiment, the valve body 1 is provided with a card mounting screw hole 13, and the main card mounting piece 6 is provided with a card sliding elongated hole 65 corresponding to the card mounting screw hole 13. The length direction of the card sliding elongated hole 65 is parallel to the sliding direction of the main card mounting piece 6. A card mounting bolt with a screw end threaded into the card mounting screw hole 13 is inserted into the card sliding elongated hole 65. Tightening the card mounting bolt can fix the main card mounting piece 6 immovably on the valve body 1, and loosening the card mounting bolt can allow the main card mounting piece 6 to slide. The card mounting bolt is not shown in the accompanying drawings.

[0041] To facilitate the connection of various conduits to each input channel 102, the valve body 1 is provided with side connection holes 108 on the left and / or right sides. Each input channel 102 is connected to a side connection hole 108 at its left and / or right ends. Each side connection hole 108 is fitted with a mating component, which is a plug head 51 or a side connection head 52. The insertion end of the mating component is provided with a mating groove. Side retaining pieces 7 are slidably installed on the left and / or right sides of the valve body 1, which can slide into the mating groove to fix the mating component on the valve body 1. The side retaining pieces 7 are provided with the same number of side retaining holes 71 as the mating components. The upper end of the side retaining holes 71 is open. The insertion end of the mating component is inserted into the side connection hole 108. When the side retaining piece 7 is slid to move the side retaining hole 71 to the insertion end position of the mating component, the part of the side retaining piece 7 corresponding to the outer peripheral edge of the side retaining hole 71 is engaged in the mating groove, thereby realizing the retaining and fixing of the mating component.

[0042] In this embodiment, for ease of processing, both ends of the input channel 102 are connected to a side connection hole 108. The fitting installed on the left side connection hole 108 is a sealing head 51 that blocks the left end of the input channel 102, and the fitting installed on the right side connection hole 108 is a side connection head 52. This side connection head 52 is used to connect a conduit, allowing gas or liquid to flow into the input channel 102. Furthermore, the insertion end of the fitting is provided with a side mounting groove, in which a side sealing ring 70 is installed for contact and sealing with the wall of the side connection hole 108.

[0043] In this embodiment, the valve body 1 has two oppositely arranged side mounting portions 14 on its left and / or right sides. The side mounting portions 14 are provided with side sliding slots. The side retaining piece 7 is located between the two side mounting portions 14. The two ends of the side retaining piece 7 are slidably inserted into the side sliding slots, thereby improving the installation quality of the side retaining piece 7.

[0044] In this embodiment, the left and / or right ends of the main card holder 6 press against the bottom of the side card holder 7, preventing the side card holder 7 from sliding down arbitrarily, thereby using the main card holder 6 to install the side card holder 7.

[0045] In this embodiment, the bottom left end and / or right end of the valve cover 3 is provided with a cover mounting part 31 for restricting the upward movement of the side retaining piece 7, so that the side retaining piece 7 is located within the enclosure of the main retaining piece 6, the cover mounting part 31 and the two side mounting parts 14, thereby realizing the positioning and installation of the side retaining piece 7; in addition, in order to improve the installation quality of the side retaining piece 7, the cover mounting part 31 is provided with a top slot 32 for the upper end of the side retaining piece 7 to be inserted, thereby restricting the upward movement of the side retaining piece 7.

[0046] By using the main clamping plate 6 to clamp the bottom connector 4 and the side clamping plate 7 to clamp the mating parts, not only can the bottom connector 4, side connector 52 and sealing head 51 be quickly installed, improving the installation efficiency of the integrated valve, but also the bottom connector 4, side connector 52 and sealing head 51 do not need to be installed on the valve body 1 by threaded connection. Therefore, the conduit can be installed on the bottom connector 4 and side connector 52 first, and then the bottom connector 4 and side connector 52 can be installed on the valve body 1 by clamping. This avoids the operational difficulties of installing conduits for various connectors in a narrow space and reduces the difficulty of conduit installation.

[0047] In this embodiment, there are three media channels: a power gas channel for supplying power gas to the mobile phone, a liquid channel for supplying liquid to the mobile phone, and a cleaning gas channel for supplying cleaning gas to the mobile phone. The power gas channel's input channel 102 is located on the top surface of the valve body 1. The upper end of this input channel 102 is sealed by a diaphragm 2, and the lower end communicates with the corresponding side connection hole 108 through a power gas flow hole 1021. The liquid channel and the cleaning gas channel are located between the top and bottom surfaces of the valve body 1.

[0048] In this embodiment, each control channel has three release slots 301 that are interconnected. The three interconnected release slots 301 are a first release slot 3011, a second release slot 3012, and a third release slot 3013. The first release slot 3011 corresponds to a branch channel of the power gas channel, the second release slot 3012 corresponds to a branch channel of the liquid channel, and the third release slot 3013 corresponds to a branch channel of the clean gas channel. The purpose of one control for three channels can be achieved through the three release slots 301 of the control channel.

[0049] In this embodiment, the control channel includes a gas distribution structure, which includes a gas distribution groove 302 located at the bottom of the valve cover 3 and two gas distribution holes 303 located at the top of the valve cover 3 and communicating with the gas distribution groove 302. The diaphragm 2 is provided with control clearance holes 201 corresponding to the control hole 101 and the gas distribution groove 302, so that the control hole 101 and the gas distribution groove 302 are connected through the control clearance holes 201. The end of the gas distribution hole 303 away from the gas distribution groove 302 is sealed with a gas distribution plug. The walls of the three release grooves 301 of the control channel are each provided with connecting air holes 3010 communicating with the gas distribution holes 303, so that the three release grooves 301 of the control channel are interconnected. The gas distribution plug is not shown in the figures.

[0050] In this embodiment, the valve body 1 is provided with a connecting air passage 109, and one or both ends of the connecting air passage 109 are connected to a side connecting hole 108; the connecting air passage 109 is connected to the anti-wrinkle groove 106 of the power air passage through a connecting air hole 110, and the connecting air passage 109 is connected to a pressure regulating hole 1091, and a pressure regulating valve 8 is installed in the pressure regulating hole 1091. The above is the prior art. Using the pressure regulating valve 8 to regulate the air pressure is the prior art, so it will not be described in detail.

[0051] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. An integrated valve diaphragm protection structure for use in dental equipment, comprising a valve body (1), a diaphragm (2), and a valve cover (3) connected sequentially from bottom to top, wherein the valve body (1) is provided with a medium channel and a control hole (101), the medium channel including an input channel (102) and at least one branch channel, the branch channel including a medium delivery hole (103) and a medium transmission hole (104) whose lower end communicates with the input channel (102), and both the lower end of the control hole (101) and the lower end of the medium delivery hole (103) are provided with a bottom connection hole (105) penetrating the bottom surface of the valve body (1); the valve cover (3) is provided with a control channel, the control channel including a release groove (301) communicating with the control hole (101), each release groove (301) corresponding to a branch channel; characterized in that: The branch channel also includes an anti-wrinkle groove (106) on the top surface of the valve body (1), and the upper ends of the medium transmission hole (104) and the medium delivery hole (103) both penetrate the groove surface of the anti-wrinkle groove (106).

2. The integrated valve diaphragm protection structure applied to dental equipment according to claim 1, characterized in that: The top view of the anti-wrinkle groove (106) corresponding to the top and bottom is adapted to the top view of the release groove (301).

3. An integrated valve diaphragm protection structure for dental equipment according to claim 1 or 2, characterized in that: The top view cross-sectional shape of the release groove (301) and the anti-wrinkle groove (106) is circular or oblong.

4. An integrated valve diaphragm protection structure for dental equipment according to claim 1 or 2, characterized in that: The valve body (1) is provided with a side connection hole (108) on the left and / or right side, and the left and / or right ends of each input channel (102) are connected to a side connection hole (108).

5. An integrated valve diaphragm protection structure for dental equipment according to claim 1 or 2, characterized in that: There are three medium channels, namely a power gas channel for inputting power gas into the mobile phone, a liquid channel for inputting liquid into the mobile phone, and a cleaning gas channel for inputting cleaning gas into the mobile phone.

6. The integrated valve diaphragm protection structure for dental equipment according to claim 5, characterized in that: The input channel (102) of the power air passage is located on the top surface of the valve body (1). The upper end of the input channel (102) is closed by a diaphragm (2), and the lower end is connected to the corresponding side connection hole (108) through the power air flow hole (1021). The liquid passage and the cleaning air passage are located between the top and bottom surfaces of the valve body (1).

7. The integrated valve diaphragm protection structure applied to dental equipment according to claim 5, characterized in that: Each control channel has three release slots (301) that are interconnected. The three interconnected release slots (301) are the first release slot (3011), the second release slot (3012), and the third release slot (3013). The first release slot (3011) corresponds to a branch channel of the power gas channel, the second release slot (3012) corresponds to a branch channel of the liquid channel, and the third release slot (3013) corresponds to a branch channel of the clean gas channel.

8. The integrated valve diaphragm protection structure for dental equipment according to claim 6, characterized in that: The control channel includes a gas distribution structure, which includes a gas distribution groove (302) at the bottom of the valve cover (3) and two gas distribution holes (303) at the top of the valve cover (3) and connected to the gas distribution groove (302). The diaphragm (2) is provided with control clearance holes (201) corresponding to the control hole (101) and the gas distribution groove (302). The walls of the three release grooves (301) of the control channel are all provided with connecting air holes (3010) connected to the gas distribution holes (303).

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