A water-passing structure and a tooth cleaning machine handle containing the same

Abstract

The present invention relates to a water-passing structure, comprising a water joint, a main rod, a hose and a support tube, one end of the hose is connected to the water joint, the other end of the hose extends from the lower end of the main rod into the flow channel in the main rod, the hose is located in a tube cavity in the flow channel, a support tube is arranged along the water flow direction, and the outer tube wall of the support tube is in close contact with the inner tube wall of the hose. A tooth cleaning machine handle comprises the above-mentioned water-passing structure. The beneficial effect of the present invention is: a water joint, a hose and a support tube are used to replace traditional metal connectors, and they are assembled in the described manner, so that in the position other than the cooperation between the hose and the support tube, only the hose is used as a water-passing channel, which is relatively soft compared to metal, thereby reducing the damping of the transducer power, and also overcoming the problem of resonance vibration between the housing and the transducer.

Description

Technical Field

[0001] The invention relates to the field of dental medical instruments, and in particular to a water-passing structure and a dental cleaning machine handle containing the same. Background Art

[0002] The traditional water-flowing structure in the handle relies on metal connectors to connect the water supply equipment with the flow channel in the main rod. The metal connectors are rigid as a whole, which will dampen the power of the transducer in the handle, that is, reduce the power of the transducer. At the same time, it is also easy to cause the problem of resonance and vibration between the shell and the transducer. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a water-passing structure and a tooth-cleaning machine handle containing the same, so as to overcome the deficiencies in the above-mentioned prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a water-passing structure, including a water joint, a main rod, a hose and a support tube, one end of the hose is connected to the water joint, and the other end of the hose extends from the lower end of the main rod into the flow channel in the main rod. The hose is located in a tube cavity in the flow channel and a support tube is arranged along the water flow direction, and the outer tube wall of the support tube is in close contact with the inner tube wall of the hose.

[0005] The beneficial effects of the present invention are: water joints, hoses and support tubes are used to replace traditional metal connectors, and they are assembled in the described manner, so that at positions other than the hose and the support tube, only the hose is used as a water passage, which is relatively soft compared to metal, thereby reducing the damping of the transducer power, while also overcoming the problem of resonance vibration between the housing and the transducer, and is also beneficial to improving the assembly efficiency of the handle.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the length of the hose extending into the flow channel is 15 mm to 24.5 mm.

[0008] Furthermore, the length of the support tube is 20 mm to 30 mm.

[0009] Furthermore, an annular protrusion is provided on the outer tube wall of one end of the hose extending into the flow channel, and the annular protrusion is closely attached to the wall surface of the flow channel.

[0010] A further beneficial effect of the above is that the addition of the annular protrusion can reduce the contact area between the hose and the flow channel, thereby further reducing the damping of the power of the transducer.

[0011] Furthermore, the number of the annular protrusions is two.

[0012] A further beneficial effect of adopting the above method is that while ensuring that water leakage is minimized, the damping of the transducer can be maintained within a most appropriate range.

[0013] Furthermore, the Vickers hardness of the hose is 60±5 degrees.

[0014] Further, the hose is made of silicone.

[0015] Furthermore, it also includes a clamping ring, and the clamping ring is sleeved on the part where the hose is connected to the water joint.

[0016] A tooth cleaning machine handle comprises a water passing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the water-passing structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the structure of the handle of the present invention.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Water joint, 2. Main rod, 3. Hose, 310, annular protrusion, 4. Support pipe, 5. Clamp ring, 6. Shell. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] Example 1

[0023] like Figure 1 As shown, a water-passing structure includes a water connector 1, a main rod 2, a hose 3 and a support tube 4. One end of the hose 3 is connected to the water connector 1. Normally, it is preferred to insert the interface end of the water connector 1 into the hose 3, and utilize the elasticity of the hose 3 to make the interface end of the water connector 1 and the tube wall of the hose 3 sealed and connected. The other end of the hose 3 extends from the lower end of the main rod 2 into the flow channel in the main rod 2. A support tube 4 is arranged in the tube cavity of the hose 3 in the flow channel along the water flow direction, and the outer tube wall of the support tube 4 is in close contact with the inner tube wall of the hose 3.

[0024] Example 2

[0025] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the specific contents are as follows:

[0026] Typically, the length of the hose 3 extending into the flow channel is 15 mm to 25.4 mm, preferably 25.4 mm, and the length of the support tube 4 is 20 mm to 30 mm, preferably 28 mm.

[0027] Example 3

[0028] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 2, and the specific contents are as follows:

[0029] An annular protrusion 310 is provided on the outer tube wall of one end of the hose 3 extending into the flow channel. The annular protrusion 310 is close to the wall of the flow channel. The number of the annular protrusions 310 is preferably two. If the number of the annular protrusions 310 is one, water leakage is likely to occur. If the number of the annular protrusions 310 is three, four, five, etc., the damping of the transducer will increase.

[0030] The Vickers hardness of the hose 3 is 60±5 degrees, and the hose 3 is preferably made of silicone.

[0031] The water-passing structure further includes a clamping ring 5 , and the clamping ring 5 is sleeved on the portion where the hose 3 is connected to the water connector 1 .

[0032] Example 4

[0033] like Figure 2 As shown, a tooth cleaning machine handle includes the water-passing structure recorded in any one of embodiments 1 to 3.

[0034] A tooth cleaning machine handle also includes a shell 6, wherein a water connector 1 is arranged inside the shell 6 and fixed to the lower end of the shell 6, and a main rod 2 is arranged inside the shell 6, and the gap between the main rod 2 and the shell 6 is encapsulated by silica gel.

[0035] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A water-passing structure, characterized in that: The utility model comprises a water joint (1), a main rod (2), a hose (3) and a support tube (4), wherein one end of the hose (3) is connected to the water joint (1), and the other end of the hose (3) extends from the lower end of the main rod (2) into a flow channel in the main rod (2); the hose (3) is located in a tube cavity in the flow channel, and the support tube (4) is arranged along the water flow direction; the outer tube wall of the support tube (4) is in close contact with the inner tube wall of the hose (3); an annular protrusion (310) is arranged on the outer tube wall of the end of the hose (3) extending into the flow channel, so as to reduce the contact area between the hose (3) and the flow channel, thereby reducing the damping of the power of the transducer; the annular protrusion (310) is in close contact with the wall surface of the flow channel; the number of the annular protrusions (310) is two, and the annular protrusions (310) are located in the region of the hose (3) where the support tube (4) is built-in.

2. A water-passing structure according to claim 1, characterized in that: The length of the hose (3) extending into the flow channel is 15 mm to 25.4 mm.

3. A water-passing structure according to claim 2, characterized in that: The length of the support tube (4) is 20 mm to 30 mm.

4. A water-passing structure according to claim 1, characterized in that: The Vickers hardness of the hose (3) is 60±5 degrees.

5. A water-passing structure according to claim 4, characterized in that: The hose (3) is made of silicone.

6. A water-passing structure according to claim 1, characterized in that: It also comprises a clamping ring (5), and the clamping ring (5) is sleeved on the portion where the hose (3) is connected to the water connector (1).

7. A tooth scaler handle, characterized in that It comprises the water-passing structure described in any one of claims 1 to 6.

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