A ceramic valve connector

Abstract

The utility model discloses a kind of ceramic valve connectors, including air inlet pipe, connecting piece, butt joint sleeve and protective sleeve;Connecting piece inside is equipped with fluid passage extending along its axial direction, fluid passage is communicated with the inner chamber of air inlet pipe;Butt joint sleeve is sleeved in the one end of connecting piece and the outer side of the one end of the air inlet pipe, the inner wall of butt joint sleeve is respectively tightly combined with the outer wall of connecting piece, the outer wall of air inlet pipe, to realize the sealed connection of air inlet pipe and connecting piece;Protective sleeve is hollow structural member, it is coaxially sleeved in the outer side of butt joint sleeve, and one end of protective sleeve is detachably connected with connecting piece to form wrapping to butt joint sleeve. Wear resistance and sealing are improved by butt joint sleeve, avoid sand leakage;The connecting structure of protective sleeve and metal connecting piece is convenient for quickly replacing wearing parts, without disassembling other components of equipment;Simultaneously, the frictional force formed by the close combination of butt joint sleeve and metal parts ensures the stability of connection. Solve the problem of poor wear resistance, easy leakage and inconvenient replacement of existing structure.

Description

Technical Field

[0001] This utility model relates to the technical field of dental air-blasting equipment accessories, and more specifically, to a ceramic valve connector. Background Technology

[0002] In the dental field, air polishing equipment is an important tool for teeth cleaning, whitening, and periodontal treatment. This type of equipment works by using compressed gas to lift the abrasive powder from the powder tank, which is then delivered to the spray gun (handle) via a delivery pipeline to achieve air polishing of the tooth surface.

[0003] To achieve precise control of sand powder flow, existing dental air polishing equipment typically installs a ceramic valve on the main delivery line between the sand powder tank outlet and the air gun, which serves as the master control switch. The connection between the ceramic valve and the delivery line or other equipment components requires a specific connection structure. Currently, the mainstream connection structure on the market uses a pagoda-shaped metal connector or quick-connect fitting with a flexible hose to connect the ceramic valve to the delivery line.

[0004] However, the existing connection structure described above has obvious drawbacks in practical applications: 1. When sandblasting equipment is operating, sand powder flows at a high velocity within the delivery pipeline under gas-driven propulsion. This high-speed sand powder causes continuous impact and wear on the hoses. Over time, the hoses are prone to damage due to wear, leading to sand powder leakage into the sandblasting equipment. Sand powder leakage not only affects the normal operation of the equipment but may also cause contamination and damage to internal components, increasing maintenance costs.

[0005] 2. The connection between the hose and the metal connector is a fixed assembly structure. When the hose needs to be replaced due to wear, multiple related components of the equipment need to be disassembled. The operation process is complicated and the replacement is difficult. It not only consumes a lot of maintenance time, but may also cause secondary damage to other components during disassembly and reassembly.

[0006] In view of the problems of poor wear resistance, easy leakage and inconvenient replacement of existing ceramic valve connection structures, there is an urgent need to design a new type of ceramic valve connection structure to solve the above-mentioned technical pain points. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing dental air-blasting equipment ceramic valve connection structures, such as poor wear resistance, easy leakage, and inconvenient replacement, and to provide a ceramic valve connector with stronger wear resistance, higher sealing reliability, and easier replacement.

[0008] The technical solution to achieve the purpose of this utility model is: A ceramic valve connector for connecting a ceramic valve to a delivery pipeline includes an inlet pipe, a connector, a mating sleeve, and a protective sleeve. The connector has a fluid channel extending axially inside, and the fluid channel communicates with the inner cavity of the air intake pipe. The mating sleeve is fitted onto one end of the connector and the outside of one end of the air intake pipe. The inner wall of the mating sleeve is tightly fitted with the outer wall of the connector and the outer wall of the air intake pipe to achieve a sealed connection between the air intake pipe and the connector. The protective sleeve is a hollow structural component, which is coaxially sleeved on the outside of the docking sleeve, and one end of the protective sleeve is detachably connected to the connector to form a wrap around the docking sleeve.

[0009] Furthermore, the fluid passage of the connector is collinear with the axis of the intake pipe.

[0010] Furthermore, the protective sleeve has an internal thread on the inner side of one end, and the connector has an external thread on the outer side of one end, so that the protective sleeve and the connector can be detachably connected by the threads.

[0011] Furthermore, the air intake pipe and connectors are made of metal, including but not limited to stainless steel and aluminum alloy, to meet the requirements of sandblasting equipment for strength, wear resistance, and corrosion resistance.

[0012] Furthermore, the mating sleeve is a component made of elastic soft material, including but not limited to silicone, fluororubber, and nitrile rubber, to improve its resistance to media impact and wear and extend its service life.

[0013] Furthermore, the protective sleeve is made of rigid or semi-rigid materials, including but not limited to engineering plastics, metals, and composite materials, to ensure the protective effect of the coupling sleeve.

[0014] Compared with the prior art, the ceramic valve connector provided by this utility model has the following advantages: 1. Excellent wear resistance and high sealing reliability: The connection between the connector and the air inlet pipe is achieved through a soft rubber coupling sleeve. The soft rubber material has good elasticity and wear resistance, which can effectively buffer the impact of high-speed sand powder on the connection parts and reduce the wear rate. At the same time, the tight fit design of the coupling sleeve with the connector and the air inlet pipe can effectively prevent sand powder leakage, improve the sealing reliability of the connection structure, and thus extend the service life of the entire sandblasting equipment, reducing maintenance frequency and cost.

[0015] 2. Reasonable structural design, easy to replace and maintain: The protective sleeve and the connector are fixed by threaded connection. When the docking sleeve and the protective sleeve need to be replaced due to long-term use, simply loosen the protective sleeve to remove the old docking sleeve and the protective sleeve and replace the new parts. There is no need to disassemble other related parts of the equipment. The operation is simple and convenient, which greatly shortens the maintenance time and reduces the maintenance difficulty and cost.

[0016] 3. High stability and low flow resistance: The protective sleeve protects the mating sleeve from damage caused by external impact or squeezing.

[0017] 4. By enclosing the intake pipe and connectors with a protective sleeve, the coaxiality of the fluid passage is improved, thereby enhancing the smoothness of the air passage and effectively preventing fluid blockage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a ceramic valve connector; Figure 2 This is a cross-sectional view of a ceramic valve connector; In the diagram: 1. Metal connector 2. Metal air inlet pipe 3. Connecting sleeve 4. Protective sleeve 50. Ceramic valve assembly. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this is not intended to limit the present invention. Example

[0020] like Figure 1 , Figure 2 As shown: A ceramic valve connector is used to connect the ceramic valve assembly 5 and the delivery pipeline in a dental sandblasting device. It includes a metal connector 1, a metal air inlet pipe 2, a mating sleeve 3, and a protective sleeve 4.

[0021] In this embodiment, both the metal connector 1 and the metal air inlet pipe 2 are made of 304 stainless steel, which has good corrosion resistance and structural strength, and can adapt to the working environment of dental sandblasting equipment. The metal connector 1 has an internal fluid channel extending axially, which is collinear with the axis of the metal air inlet pipe 2, ensuring smooth flow of sand powder.

[0022] The mating sleeve 3 is made of wear-resistant fluororubber. Fluororubber has excellent wear resistance, oil resistance, and high temperature resistance, which can effectively resist the impact and wear of high-speed sand powder and extend its service life. The inner diameter of the mating sleeve 3 is adapted to the outer diameter of the metal connector 1 and the metal air inlet pipe 2. It is sleeved on the outer side of one end of the metal connector 1 and one end of the metal air inlet pipe 2. The inner wall of the mating sleeve 3 is tightly fitted to the outer wall of the metal connector 1 and the outer wall of the metal air inlet pipe 2 to achieve a sealed connection between the metal air inlet pipe 2 and the metal connector 1.

[0023] The protective sleeve 4 is a hollow tubular component that is fitted onto the outside of the mating sleeve 3. One end of the protective sleeve 4 has an internal thread, and the metal connector 1 has an external thread that matches the internal thread on the outside of the end near the mating sleeve 3. The protective sleeve 4 and the metal connector 1 are fixed by threaded connection, thereby enclosing the mating sleeve 3 inside and preventing the sand-path mating sleeve 3 from being damaged by external force collision or squeezing.

[0024] The ceramic valve connector of this embodiment is operated as follows during actual assembly and use: During assembly, firstly, one end of the mating sleeve 3 is fitted onto the outside of one end of the metal air inlet pipe 2, ensuring a tight fit between the mating sleeve 3 and the metal air inlet pipe 2. Then, the other end of the mating sleeve 3 is fitted onto the outside of one end of the metal connector 1, aligning and communicating the fluid channel inside the metal connector 1 with the internal cavity of the metal air inlet pipe 2, ensuring a tight fit between the mating sleeve 3 and the metal connector 1. Finally, the protective sleeve 4 is fitted onto the outside of the mating sleeve 3, and its internal thread engages with the external thread of the metal connector 1 to tighten and secure the protective sleeve 4 to the metal connector 1, completing the assembly of the entire connector. At this point, the frictional force generated by the tight fit between the mating sleeve 3, the metal connector 1, and the metal air inlet pipe 2 restricts the axial displacement of the metal air inlet pipe 2, ensuring the stability of the connection structure.

[0025] When the docking sleeve 3 needs to be replaced due to wear and tear from long-term use, simply unscrew the docking sleeve protective sleeve 4 in the opposite direction and remove it from the metal connector 1. Then, remove the old docking sleeve 3 from the metal connector 1 and the metal air inlet pipe 2. After replacing the new docking sleeve 3, reinstall the protective sleeve 4 according to the above assembly steps. The operation is simple and convenient, greatly reducing the difficulty and cost of maintenance.

Claims

1. A ceramic valve connector, characterized in that, Includes intake pipe, connectors, mating sleeve, and protective sleeve; The connector has a fluid channel extending axially inside, and the fluid channel communicates with the inner cavity of the air intake pipe. The mating sleeve is fitted onto the outer side of one end of the connector and one end of the air intake pipe, and the inner wall of the mating sleeve is respectively connected to the outer wall of the connector. The outer wall of the intake pipe is tightly fitted to achieve a sealed connection between the intake pipe and the connector; The protective sleeve is a hollow structural component, coaxially sleeved on the outside of the mating sleeve, and one end of the protective sleeve is detachably connected to the connector for mating. The sleeve forms a package.

2. A ceramic valve connector according to claim 1, characterized in that, The fluid channel of the connector is collinear with the axis of the intake pipe.

3. A ceramic valve connector according to claim 1, characterized in that, One end of the protective sleeve has an internal thread, and the connector... One end of the outer side is provided with external threads, and the protective sleeve and the connector are detachably connected by the threads.

4. A ceramic valve connector according to claim 1, characterized in that, The intake pipe and connectors are made of metal.

5. A ceramic valve connector according to claim 1, characterized in that, The mating sleeve is a component made of an elastic, soft material.

6. A ceramic valve connector according to claim 1, characterized in that, The protective sleeve is made of a rigid material.

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