Fluororubber thrust ring

Abstract

The utility model discloses a fluororubber thrust ring which comprises a retaining outer ring, the retaining outer ring is provided with a main channel, one side of the retaining outer ring is provided with a first sealing ring groove and a first sealing cover groove, the first sealing ring groove and the main channel are coaxially arranged, and the first sealing cover groove is located outside the first sealing ring groove. A second sealing ring groove and a second sealing cover groove which are coaxial with the main channel are formed in the other side of the retaining outer ring, and the second sealing cover groove is located outside the second sealing ring groove; fluororubber rings are arranged in the first sealing ring groove and the second sealing ring groove; a first retaining inner ring is arranged in the first sealing cover groove, and a first auxiliary channel corresponding to the main channel is arranged on the first retaining inner ring; a second retaining inner ring is arranged in the second sealing cover groove, and a second auxiliary channel corresponding to the main channel is arranged on the second retaining inner ring. Through the wear-resistant and stable characteristics of the fluororubber ring, the stability of the function of the retaining ring is maintained, and the retaining ring is convenient to install and easy to operate and replace.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dental operation instrument field relates to a kind of thrust collar for hot dental adhesive filling instrument. BACKGROUND

[0002] Hot dental adhesive filling instrument is a kind of equipment commonly used in oral clinical, plays an important role in root canal treatment and other fields.

[0003] With the continuous development of oral medical technology, the application of hot dental adhesive filling instrument is more and more widely. However, there are some problems to be solved in the use process of the hot dental adhesive filling instrument at present.

[0004] Among them, the problem of stop ring is particularly prominent. The stop ring plays a key role in the hot dental adhesive filling instrument, which can prevent the retreat of dental adhesive during filling process, and ensure the accuracy and stability of filling. However, the current stop ring is easy to wear. After several operations, the stop inner ring will appear serious wear. This is because the stop ring needs to bear a lot of pressure and friction force during the hot dental adhesive filling process, and long-term use makes the inner ring easy to be damaged.

[0005] Once the stop ring is seriously worn, it will lead to its failure. This not only affects the effect of hot dental adhesive filling, but also may have adverse effects on the treatment of patients. Moreover, due to the easy wear of the stop ring, the whole stop ring needs to be replaced frequently. However, it is not easy to replace the stop ring. The installation process is difficult, and professional personnel are needed to operate, which not only increases the complexity of operation, but also consumes a lot of time and energy.

[0006] In addition, frequent replacement of the stop ring also leads to the increase of product after-sales cost. For the manufacturer, more resources need to be invested to provide the replacement service of the stop ring, which undoubtedly increases the burden of the enterprise. For the user, the replacement of the stop ring also needs certain cost, which increases the use cost.

[0007] In summary, the easy wear, easy failure and installation difficulty of the stop ring of the hot dental adhesive filling instrument at present seriously affect the use effect and user experience of the hot dental adhesive filling instrument, and also increase the after-sales cost of the product. UTILITY MODEL CONTENT

[0008] The utility model aims at providing a kind of fluorine rubber thrust collar that is easy to replace and not easy to fail, to solve the technical problems in the background art.

[0009] The utility model aims at the following technical scheme:

[0010] The utility model provides a fluorine rubber thrust collar, including the outer circle of stop, be provided with main channel on the outer circle of stop, one side of the outer circle of stop is provided with the first sealing ring groove and first cover groove with the coaxial arrangement of main channel, first cover groove is located the outside of first sealing ring groove, the other side of the outer circle of stop is provided with the second sealing ring groove and second cover groove with the coaxial arrangement of main channel, second cover groove is located the outside of second sealing ring groove, be provided with fluorine rubber ring in first sealing ring groove and second sealing ring groove, be provided with first stop inner circle in first cover groove, be provided with the first auxiliary channel with the correspondence of main channel on first stop inner circle, be provided with second stop inner circle in second cover groove, be provided with the second auxiliary channel with the correspondence of main channel on second stop inner circle.

[0011] The first sealing ring groove and the second sealing ring groove are provided with fluorine rubber rings; the first cover groove is provided with a first stop inner circle, and the first stop inner circle is provided with a first auxiliary channel corresponding to the main channel; the second cover groove is provided with a second stop inner circle, and the second stop inner circle is provided with a second auxiliary channel corresponding to the main channel.

[0012] As a further improvement of an embodiment of the utility model, the first stop inner circle is fixedly arranged in the first cover groove through a press-fitting process.

[0013] As a further improvement of an embodiment of the utility model, a stepped structure is formed between the first cover groove and the first sealing ring groove, and a lower end surface of the first stop inner circle arranged in the first cover groove becomes a side wall of the first sealing ring groove.

[0014] As a further improvement of an embodiment of the utility model, an avoiding groove is arranged on an upper end surface of the first stop inner circle.

[0015] As a further improvement of an embodiment of the utility model, the second stop inner circle is fixedly arranged in the second cover groove in a threaded connection mode.

[0016] As a further improvement of an embodiment of the utility model, a stepped structure is formed between the second cover groove and the second sealing ring groove, and a lower end surface of the second stop inner circle arranged in the second cover groove becomes a side wall of the second sealing ring groove.

[0017] As a further improvement of an embodiment of the utility model, an outer thread structure is arranged on the periphery of the second stop inner circle, and an inner thread structure corresponding to the outer thread structure is arranged on an inner wall of the second cover groove.

[0018] As a further improvement of an embodiment of the utility model, the outer circle of stop is a columnar body structure, and the main channel is arranged centrally on the outer circle of stop.

[0019] As a further improvement of an embodiment of the utility model, a positioning mounting hole is arranged on the outer circle of stop, and the positioning mounting hole is not in communication with the main channel.

[0020] As a further improvement of the embodiment of the utility model, the number of the positioning mounting holes is two and symmetrically distributed on the retreat-stop outer ring.

[0021] The above technical scheme has the following beneficial effects: the wear resistance and stability of the fluororubber ring maintain the stability of the retreat-stop ring function, and the fluororubber ring is convenient to install, easy to operate and replace. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other embodiments can be derived from the provided drawings without creative labor.

[0023] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, for understanding and reading by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the utility model, so they do not have the technical essence, any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be produced by the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0024] Figure 1 The utility model provides an explosion structure schematic view.

[0025] Figure 2 The utility model provides a three-dimensional structure schematic view.

[0026] Figure 3 The utility model provides a front view structure schematic view.

[0027] Figure 4 For Figure 3 The cross-sectional view along the direction of A-A.

[0028] Figure 5 The utility model provides a cross-sectional view of the retreat-stop outer ring.

[0029] In the figure:

[0030] 1-retreat-stop outer ring; 11-main channel; 12-first sealing ring groove; 13-first cover groove; 14-second sealing ring groove; 15-second cover groove; 16-positioning mounting hole;

[0031] 2-first fluororubber ring;

[0032] 3-second fluororubber ring;

[0033] 4 - first retainer inner race; 41 - relief groove;

[0034] 5 - second retainer inner race. DETAILED DESCRIPTION

[0035] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0037] In the present application, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are generally directed to the direction shown in the drawings, or are directed to the vertical, perpendicular or gravity direction of the components themselves. Similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application. EMBODIMENT

[0038] Referring to Figures 1-5 As shown in the drawings, a fluorine rubber thrust ring, comprising a retainer outer race 1, the retainer outer race 1 is provided with a main channel 11. On one side of the retainer outer race 1, a first sealing ring groove 12 and a first cover groove 13 are coaxially arranged with the main channel 11. Among them, the first cover groove 13 is located outside the first sealing ring groove 12, such a layout design not only ensures the rationality of the structure, but also provides convenience for the installation of subsequent components. Similarly, on the other side of the retainer outer race 1, a second sealing ring groove 14 and a second cover groove 15 are also coaxially arranged with the main channel 11, and the second cover groove 15 is located outside the second sealing ring groove 14.

[0039] In the first sealing ring groove 12 and the second sealing ring groove 14, a first fluorine rubber ring 2 and a second fluorine rubber ring 3 are arranged respectively. Fluorine rubber has excellent wear resistance and stable chemical properties, and can withstand large pressure and friction force in the hot gutta-percha filling process without being easily worn. The existence of the two fluorine rubber rings greatly enhances the wear resistance and stability of the thrust ring, ensuring the stable play of the retainer function. Even after multiple uses, it can maintain good performance, effectively solving the problem of easy wear and tear of the retainer of the hot gutta-percha filling instrument at the present stage.

[0040] The first cover groove 13 is provided with a first retreat-stop inner ring 4, and the first retreat-stop inner ring 4 is provided with a first auxiliary channel corresponding to the main channel 11. The first retreat-stop inner ring 4 is fixedly arranged in the first cover groove 13 through a press-fitting process. This press-fitting process makes the installation of the first retreat-stop inner ring more firm and less likely to loosen, thereby ensuring the stability during the hot gutta-percha filling process. At the same time, the press-fitting process is relatively simple to operate, which facilitates the installation process.

[0041] The second cover groove 15 is provided with a second retreat-stop inner ring 5, and the second retreat-stop inner ring 5 is provided with a second auxiliary channel corresponding to the main channel 11. The second retreat-stop inner ring 5 is fixedly arranged in the second cover groove 15 through a threaded connection. The threaded connection has a detachable nature, and when the second retreat-stop inner ring needs to be replaced, it can be completed through a simple rotation operation, which is very convenient and fast.

[0042] Further, the first cover groove 13 and the first seal ring groove 12 form a stepped structure, and the lower end surface of the first retreat-stop inner ring 4 located in the first cover groove 13 becomes a side wall of the first seal ring groove 12. By designing the stepped structure between the first cover groove 13 and the first seal ring groove 12, the overall structure is more compact, and the space is reduced. At the same time, the lower end surface of the first retreat-stop inner ring 4 becomes a side wall of the first seal ring groove 12, which further enhances the sealing and stability of the entire thrust ring. During the hot gutta-percha filling process, it can better prevent the leakage of gutta-percha and ensure the accuracy and safety of the filling.

[0043] Similarly, the second cover groove 15 and the second seal ring groove 14 form a stepped structure, so that the overall structure is more compact and the space is reduced. The lower end surface of the second retreat-stop inner ring 5 located in the second cover groove 15 becomes a side wall of the second seal ring groove 14, which further enhances the sealing and stability of the entire thrust ring.

[0044] In this embodiment, the upper end surface of the first retreat-stop inner ring 4 is provided with a relief groove 41. When the press-fitting process of the first retreat-stop inner ring 4 is performed, the relief groove 41 can provide an effective buffer space. In the press-fitting operation, the above-mentioned relief groove 41 can alleviate the pressure impact in the press-fitting process to a certain extent, ensuring that the first retreat-stop inner ring 4 can be smoothly and firmly installed in the first cover groove 13.

[0045] In the embodiment, the second retreat-stop inner ring 5 is provided with an external thread structure on the periphery, and the second cover groove 15 is provided with an internal thread structure on the inner wall. The thread cooperation design makes the second retreat-stop inner ring 5 more convenient to install and disassemble. When the second retreat-stop inner ring 5 needs to be installed, it can be easily screwed into the second cover groove 15 through rotation, and the thread structure can ensure the firmness of the installation. When the second retreat-stop inner ring 5 needs to be replaced, it can also be taken out through rotation, which is convenient and efficient, and greatly improves the operation efficiency.

[0046] In the embodiment, the retreat-stop outer ring 1 is in a columnar structure, which is simple in design and has good stability. The main channel 11 is centrally arranged on the retreat-stop outer ring 1, which improves the structural stability of the retreat-stop outer ring 1. The retreat-stop outer ring 1 is also provided with a positioning installation hole 16, which is not communicated with the main channel 11, avoiding interference between them.

[0047] Preferably, the number of positioning installation holes 16 is two and symmetrically distributed on the retreat-stop outer ring 1. Such a design not only facilitates the installation and positioning of the retreat-stop outer ring, but also enables it to be more firmly fixed in the warm gutta-percha filling instrument, and the symmetrically distributed positioning installation holes also make the stress more uniform, improving the reliability and stability of the entire device.

[0048] In summary, the design of the fluororubber thrust ring of the utility model fully considers the actual needs of the warm gutta-percha filling instrument in use. Through the wear-resistant and stable characteristics of the fluororubber ring, the stability of the retreat-stop ring function is maintained, the service life of the thrust ring is greatly prolonged, and the after-sales cost of the product is reduced. At the same time, its convenient installation, easy operation and replacement characteristics make it easy for professional dentists or technicians to install and replace, improving work efficiency. In short, this fluororubber thrust ring provides strong support for the performance improvement and user experience improvement of the warm gutta-percha filling instrument.

[0049] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the utility model.

[0050] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0051] It should be noted that the terms "first", "second", and the like used in the description and the claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fluororubber thrust washer characterised in that: The stop retreat outer ring is provided with a main channel, and one side of the stop retreat outer ring is provided with a first sealing ring groove and a first cover groove coaxially arranged with the main channel, the first cover groove is located outside the first sealing ring groove, and the other side of the stop retreat outer ring is provided with a second sealing ring groove and a second cover groove coaxially arranged with the main channel, and the second cover groove is located outside the second sealing ring groove. The first sealing ring groove and the second sealing ring groove are provided with fluororubber rings, the first cover groove is provided with a first stop retreat inner ring, and the first stop retreat inner ring is provided with a first auxiliary channel corresponding to the main channel; the second cover groove is provided with a second stop retreat inner ring, and the second stop retreat inner ring is provided with a second auxiliary channel corresponding to the main channel.

2. The fluororubber thrust washer of claim 1, wherein: The first stop retreat inner ring is fixedly arranged in the first cover groove through a press-fitting process.

3. The fluororubber thrust washer of claim 2, wherein: The first cover groove and the first sealing ring groove form a stepped structure, and the lower end surface of the first stop retreat inner ring in the first cover groove becomes a side wall of the first sealing ring groove.

4. Fluoroelastomer thrust collar according to claim 2 or 3, characterized in that: An avoiding groove is arranged on the upper end surface of the first stop retreat inner ring.

5. The fluoroelastomer thrust washer of claim 1, wherein: The second stop retreat inner ring is fixedly arranged in the second cover groove through a threaded connection.

6. The fluororubber thrust washer of claim 5, wherein: The second cover groove and the second sealing ring groove form a stepped structure, and the lower end surface of the second stop retreat inner ring in the second cover groove becomes a side wall of the second sealing ring groove.

7. Fluoroelastomer thrust collar according to claim 5 or 6, characterized in that: The outer periphery of the second stop retreat inner ring is provided with an external thread structure, and the inner wall of the second cover groove is provided with a corresponding internal thread structure.

8. The fluoroelastomer thrust washer of claim 1, wherein: The stop retreat outer ring is a columnar body structure, and the main channel is arranged in the center of the stop retreat outer ring.

9. The fluororubber thrust washer of claim 1 wherein: The stop retreat outer ring is provided with a positioning installation hole, and the positioning installation hole is not communicated with the main channel.

10. The fluororubber thrust washer of claim 9, wherein: The number of the positioning installation holes is two and they are symmetrically distributed on the stop retreat outer ring.

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