Sealing ring mounting jig

Abstract

The utility model discloses a sealing ring mounting jig. The sealing ring mounting jig comprises a guide-in rod, an expansion part, a positioning part and a limiting part. The leading-in rod is used for leading in a to-be-mounted sealing ring; the expansion part is arranged at the first end of the guide-in rod, the cross section area of the expansion part is gradually increased in the direction away from the guide-in rod, and the cross section area of the expansion part is obtained by cutting the expansion part in the direction perpendicular to the length direction of the guide-in rod; the positioning part is arranged on the expansion part and is used for limiting the sealing ring mounting jig on a preset structure; the limiting part is arranged at the second end, opposite to the first end, of the guiding-in rod, and the limiting part is provided with a protruding part protruding out of the peripheral face of the guiding-in rod. The sealing ring installation jig at least can solve the problems that when a sealing ring is installed on a preset structure, the working procedure is complex, the working time is long, the sealing ring is prone to being cut apart, and the installation efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing ring installation devices, in particular to a sealing ring installation jig. Background Art

[0002] Sealing rings can achieve a tight combination of two connected parts and are used in many products such as mechanical equipment, auto parts, household appliances, toys, etc. The installation of sealing rings is also an indispensable part of the assembly process of many products. The installation quality and efficiency of sealing rings are also important indicators for judging product performance.

[0003] At present, the conventional sealing ring installation method is to place the predetermined structure flat on the table, press the sealing ring on the predetermined structure with both hands, and then press it into the sealing groove of the predetermined structure after expanding it to both sides. However, this installation method is extremely inefficient, and because the predetermined structure has edges and corners, the sealing ring is easily cut when installing it, which poses a great hidden danger to the normal use of the product and the subsequent protective performance. Utility Model Content

[0004] The main purpose of the utility model is to provide a sealing ring installation jig, which at least solves the problems of complicated procedures and long working hours when installing the sealing ring on a predetermined structure, and the sealing ring is easily cut and the installation efficiency is low.

[0005] According to one aspect of the utility model, a sealing ring installation jig is provided, comprising:

[0006] An introduction rod, the introduction rod is used to introduce the sealing ring to be installed;

[0007] an expansion portion, the expansion portion being arranged at the first end of the introduction rod, and the cross-sectional area of ​​the expansion portion gradually increases in a direction away from the introduction rod, and the cross-sectional area of ​​the expansion portion is a cross-sectional area obtained by cutting the expansion portion in a direction perpendicular to the length of the introduction rod;

[0008] A positioning portion is disposed on the expansion portion to limit the sealing ring installation fixture to a predetermined structure.

[0009] Furthermore, the expansion portion comprises a conical structure, the tip of the conical structure is connected to the introduction rod, and the positioning portion is provided at one end of the conical structure away from the introduction rod.

[0010] Furthermore, the positioning portion includes a positioning groove or a positioning protrusion.

[0011] Furthermore, the expansion portion is threadedly connected to the introduction rod or welded or integrally formed.

[0012] Furthermore, a second outer peripheral surface of the expansion portion close to one end of the introduction rod is connected with and flush with the first outer peripheral surface of the introduction rod.

[0013] Furthermore, the sealing ring installation fixture also includes a limiting portion, which is arranged at a second end of the introduction rod opposite to the first end, and the limiting portion has a protrusion protruding from the outer peripheral surface of the introduction rod.

[0014] Furthermore, the limiting portion includes a limiting ring and a connecting section, and the connecting section is connected to the limiting ring and is detachably connected to the second end of the introduction rod.

[0015] Furthermore, the connecting section is connected to the second end of the guide rod by a threaded connection or a snap connection.

[0016] Furthermore, the maximum dimension of the limiting portion along the radial direction of the introduction rod is larger than the inner diameter of the sealing ring.

[0017] Furthermore, the outer diameter of the introduction rod should be smaller than the inner diameter of the sealing ring.

[0018] Compared with the prior art, the utility model has at least the following effects: the positioning part is arranged on the expansion part, and the expansion part is arranged on the first end of the introduction rod, and the limiting part is arranged on the second end of the introduction rod opposite to the first end and connected to the second end, thereby forming a complete sealing ring installation jig. When using the sealing ring installation jig to install the sealing ring, first, separate the limiting part from the introduction rod, and put a plurality of sealing rings to be installed on the introduction rod. Then reinstall the limiting part back to the second end of the introduction rod, so as to prevent the sealing ring from falling off the sealing ring installation jig. Finally, match the positioning part with the predetermined structure, press the limiting part by hand to make the sealing ring installation jig fit tightly with the predetermined structure, and then move the sealing ring to be installed on the introduction rod by hand so that it can be smoothly installed in the installation groove of the predetermined structure after the inner diameter is expanded by the expansion part.

[0019] That is to say, compared with the sealing ring installation in the prior art, the sealing ring installation jig of the present application has a simpler and more reliable structure, strong versatility, and extremely high practical application value. It solves the problems of complicated procedures, increased working hours, sealing ring splitting, and low efficiency in the previous sealing ring installation process, making the sealing ring installation jig of the present application more convenient and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1This is a front view of the sealing ring installation fixture disclosed in the embodiment of the utility model;

[0022] Figure 2 for Figure 1 A cross-sectional view of

[0023] Figure 3 This is an exploded view of the sealing ring installation jig disclosed in the embodiment of the utility model;

[0024] Figure 4 This is a front view of the sealing ring installation jig disclosed in the embodiment of the utility model when installing the sealing ring;

[0025] Figure 5 for Figure 4 A cross-sectional view of

[0026] Figure 6 for Figure 5 Magnified view of area A in FIG.

[0027] The above drawings include the following reference numerals:

[0028] 10. Introduction rod; 101. First end; 102. Second end; 103. First outer peripheral surface; 20. Sealing ring; 30. Expansion portion; 301. Second outer peripheral surface; 31. Conical structure; 40. Positioning portion; 41. Positioning groove; 50. Limiting portion; 51. Limiting ring; 52. Connecting section; 501. Protrusion; 60. Predetermined structure; 601. Installation groove. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] The main purpose of the utility model is to provide a sealing ring installation jig, which at least solves the problems of complicated procedures, long working hours, easy cutting of the sealing ring, low installation efficiency, etc. in the installation process of the sealing ring of the predetermined structure. The sealing ring installation jig of the utility model will be introduced in detail below with reference to the accompanying drawings.

[0033] See also Figures 1 to 6 As shown, according to an embodiment of the present invention, a sealing ring installation jig is provided, which includes an introduction rod 10, an expansion portion 30 and a positioning portion 40.

[0034] The introduction rod 10 is used to introduce the sealing ring 20 to be installed. The expansion portion 30 is arranged at the first end 101 of the introduction rod 10. In the direction of the expansion portion 30 away from the introduction rod 10, the cross-sectional area of ​​the expansion portion 30 gradually increases. The cross-sectional area of ​​the expansion portion 30 mentioned here is the cross-sectional area obtained by cutting the expansion portion 30 along the length direction perpendicular to the introduction rod 10, hereinafter referred to as the cross-sectional area. The positioning portion 40 is arranged on the expansion portion 30 to limit the sealing ring installation fixture to the predetermined structure 60. It can be understood that the predetermined structure 60 mentioned here can be any structure of the sealing ring 20 that needs to be installed, such as a light guide column.

[0035] In the utility model, multiple sealing rings 20 to be installed can be introduced into the introduction rod 10 at one time to prepare for installation. Such a design can effectively avoid the embarrassing situation that only one sealing ring can be carried for installation when installing the sealing ring 20 in the past, and a new sealing ring 20 can be taken for installation after one sealing ring 20 is installed, thereby improving the installation efficiency compared with the previous installation method. The expansion part 30 is arranged on the first end 101 of the introduction rod 10, and is different from the introduction rod 10. The cross-sectional area of ​​the expansion part 30 gradually increases in the direction away from the introduction rod 10. The expansion part 30 adopts such a design in order to expand the sealing ring so as to facilitate the installation of the sealing ring on the predetermined structure 60. The positioning part 40 is arranged on the expansion part 30, and the positioning part 40 is located at the end of the expansion part 30 with the largest cross-sectional area. The positioning portion 40 can effectively prevent the sealing ring installation jig from moving on the predetermined structure 60 when installing the sealing ring. The setting of the positioning portion 40 enables the relative position of the sealing ring installation jig and the predetermined structure 60 to be determined, thereby reducing errors during the installation process and improving installation efficiency compared to previous designs.

[0036] That is to say, compared with the existing sealing ring installation tools, the sealing ring installation jig in this embodiment has a simpler structure and is more convenient and quick to install the sealing ring. In addition, the sealing ring installation jig in this embodiment can also effectively prevent the sealing ring from being damaged during the installation process, thereby improving the installation efficiency and reducing the use cost of the sealing ring 20.

[0037] See also Figures 1 to 5 As shown, in this embodiment, the introduction rod 10 can be a regular or irregular cylindrical shape such as a cylinder, a prism or an elliptical cylinder. Figure 1 To Attachment Figure 5 It should be noted that when the structure of the introduction rod 10 is a regular or irregular prism structure, the edges of the introduction rod 10 and the sealing ring 20 are provided with a rounded transition design, so that the sealing ring 20 can be prevented from being cut by the edges when sliding on the introduction rod 10.

[0038] Further, see Figure 1 , Figure 2 and Figure 3 As shown, the expansion portion 30 includes a conical structure 31 , the conical tip of the conical structure 31 is connected to the introduction rod 10 , and the positioning portion 40 mentioned above is provided at one end of the conical structure 31 away from the introduction rod 10 .

[0039] Specifically, the expansion portion 30 is composed of a conical structure 31, where the conical structure can be a prism or a cone. This embodiment shows the case where the expansion portion 30 is a conical structure, and the conical tip of the conical structure 31 is connected to the first end 101 of the introduction rod 10. The sealing ring 20 to be installed on the introduction rod 10, which is closest to the conical tip, can slide to the conical tip of the conical structure 31 along the introduction rod 10. Thereafter, applying an external force to the sealing ring 20 can make the sealing ring 20 slide on the expansion portion 30 along the axial direction of the expansion portion 30 toward the predetermined structure 60. Due to the design of the conical structure 31 of the expansion portion 30, the inner diameter of the sealing ring 20 will gradually increase to adapt to the size of the predetermined structure 60, and finally make the sealing ring 20 slide into the installation groove 601 of the predetermined structure 60 where the sealing ring 20 to be installed is installed. It should be noted that when the expansion portion 30 has a pyramidal structure, the edges of the expansion portion 30 that contact the sealing ring 20 are provided with rounded corners to prevent the sealing ring 20 from being cut when sliding on the expansion portion 30 .

[0040] Further, see Figure 5 and Figure 6 As shown, the positioning portion 40 includes a positioning groove 41 or a positioning protrusion (not shown in the figure). In this embodiment, the structural design of the positioning portion 40 is determined according to the shape of the predetermined structure 60. When the end of the predetermined structure 60 that contacts the positioning portion 40 is a protrusion, the positioning portion 40 is composed of a positioning groove 41. At this time, when the sealing ring installation jig is used to install the sealing ring 20, the positioning groove 41 of the positioning portion 40 cooperates with the protrusion on the predetermined structure 60, thereby limiting the relative position of the sealing ring installation jig and the predetermined structure 60, which can improve the use stability and reliability of the sealing ring installation jig in this embodiment. When the end of the predetermined structure 60 that contacts the positioning portion 40 is a depression, the positioning portion 40 is composed of a positioning protrusion (not shown in the figure). At this time, when the sealing ring installation jig is used to install the sealing ring 20, the positioning protrusion on the positioning portion 40 cooperates with the depression on the predetermined structure 60, thereby limiting the relative position of the sealing ring installation jig and the predetermined structure 60, which can improve the use stability and reliability of the sealing ring installation jig in this embodiment. Figure 2 The figure shows the situation where the positioning portion 40 is a positioning groove 41 and the predetermined structure 60 is a protrusion. For the other structures in which the positioning portion 40 cooperates with the predetermined structure 60, as long as the structural design limits the position of the positioning portion 40 and the predetermined structure 60 when they cooperate, they are all within the protection scope of this application.

[0041] Further, see Figures 1 to 5As shown, the expansion part 30 and the introduction rod 10 can be connected in a detachable manner such as threaded connection or clamping, or can be fixedly connected in a manner such as welding, riveting, or integral molding. When the expansion part 30 and the introduction rod 10 are integrally formed, the expansion part 30 and the introduction rod 10 are located on the same whole, and the whole can be obtained by casting, forging, or turning. This embodiment shows the situation when the expansion part 30 and the introduction rod 10 are designed as an integral structure.

[0042] Further, see Figure 3 As shown, the second outer peripheral surface 301 of the expansion portion 30 near the end of the introduction rod 10 is connected and flush with the first outer peripheral surface 103 of the introduction rod 10. In this way, the sealing ring 20 can slide more smoothly between the expansion portion 30 and the introduction rod 10, and avoid the problem of the sealing ring 20 being stuck in the gap caused by the gap (not shown in the figure) at the connection position between the second outer peripheral surface 301 and the first outer peripheral surface 103.

[0043] Further, see Figure 2 and Figure 3 As shown, the sealing ring installation jig further includes a limiting portion 50, which is disposed at the second end 102 of the introduction rod 10 opposite to the first end 101, and the limiting portion 50 has a protrusion 501 protruding from the outer circumferential surface of the introduction rod 10. Such a design is to prevent the sealing ring 20 to be installed on the introduction rod 10 near the limiting portion 50 from sliding off the limiting portion 50, thereby limiting the sealing ring 20 to be installed on the introduction rod 10.

[0044] Further, see Figure 2 and Figure 3 As shown, the limiting part 50 includes a limiting ring 51 and a connecting section 52, and the connecting section 52 is connected to the limiting ring 51 and is detachably connected to the second end 102 of the introduction rod 10. Specifically, the limiting part 50 is composed of a limiting ring 51 and a connecting section 52, and the connecting section 52 is connected to the limiting ring 51, and the limiting ring 51 and the connecting section 52 can be an integral structure or a non-integrated design structure. When the limiting ring 51 and the connecting section 52 are non-integrated design structures, the limiting ring 51 and the connecting section 52 include connection methods such as threaded connection, welding or set screw connection. When the limiting ring 51 and the connecting section 52 are an integral structure design, that is, when the limiting ring 51 and the connecting section 52 are located on the same whole, the whole can be obtained by casting, forging or turning. This embodiment shows the situation when the limiting ring 51 and the connecting section 52 are an integral structure design. The connecting section 52 is detachably connected to the second end 102 of the introduction rod 10. When the limiting portion 50 is removed from the introduction rod 10 , it is convenient to introduce the sealing ring 20 to be installed from the second end 102 of the introduction rod 10 to the introduction rod 10 .

[0045] Furthermore, the connecting section 52 is connected to the second end 102 of the introduction rod 10 by a threaded connection or a snap connection. Such a design is to facilitate the removal and installation of the limiting portion 50 on the second end 102 of the introduction rod 10, thereby facilitating the introduction or removal of the sealing ring 20 to be installed from the second end 102 of the introduction rod 10. This embodiment shows the case where the connecting section 52 is connected to the second end 102 of the introduction rod 10 by a threaded connection.

[0046] Further, see Figure 2 and Figure 4 As shown, the maximum dimension of the limiting portion 50 along the radial direction of the introduction rod 10 is larger than the inner diameter of the sealing ring 20. Such a setting can prevent the sealing ring 20 on the introduction rod 10 from sliding out of the sealing ring installation jig via the limiting portion 50. This embodiment shows the situation when the limiting ring 51 is connected to the connecting section 52. For other structural designs connected to the connecting section 52 to prevent the sealing ring 20 from sliding off the sealing ring installation jig, as long as they are other deformation methods under the conception of this application, they are all within the protection scope of this application. The setting of the limiting ring 51 shown in this embodiment can not only prevent the sealing ring 20 from sliding off the sealing ring installation jig, but also facilitate the user of the sealing ring installation jig to hold the jig, and further assist the sealing ring installation jig to better cooperate with the predetermined structure 60. In addition, the setting of the limiting ring 51 also facilitates the hanging of the sealing ring installation jig in the storage place of the sealing ring installation jig.

[0047] Further, see Figure 3 , Figure 5 and Figure 6 As shown, the outer diameter of the introduction rod 10 should be smaller than the inner diameter of the sealing ring 20, so that it is easier for the sealing ring 20 to slide on the introduction rod 10. Specifically, in this embodiment, by setting the inner diameter of the sealing ring 20 to be larger than the outer diameter of the introduction rod 10, when the positioning portion 40 of the sealing ring installation jig cooperates with the predetermined structure 60, it is only necessary to apply an external force to the sealing ring 20, so that the sealing ring 20 to be installed slides to the conical tip of the conical structure 31 of the expansion portion 30 along with the introduction rod 10, and finally the user of the sealing ring installation jig moves the sealing ring 20 to slide into the installation groove 601 of the predetermined structure 60.

[0048] From the above statements, it can be known that the present application simplifies the installation process of the sealing ring 20 into a simple axial pressing and expanding movement by setting a sealing ring installation fixture composed of a limiting portion 50, an introduction rod 10, an expansion portion 30 and a positioning portion 40. A first outer peripheral surface 103 and a second outer peripheral surface 301 are provided on the introduction rod 10 and the expansion portion 30. The function of the first outer peripheral surface 103 is to carry the sealing ring 20 to be installed, and the function of the second outer peripheral surface 301 is to expand the sealing ring 20 from the original inner diameter to the maximum outer diameter of the second outer peripheral surface 301. Because the sealing ring 20 is made of an elastic elastic material with high elasticity, the inner diameter of the sealing ring 20 can be changed as the sealing ring 20 slides on the expansion portion 30, thereby facilitating the sealing ring 20 to slide from the end of the expansion portion 30 close to the predetermined structure 60 into the installation groove 601 of the predetermined structure 60, thereby realizing the installation of the sealing ring 20 on the predetermined structure 60. The function of the positioning portion 40 is to ensure that the position of the sealing ring installation jig and the predetermined structure 60 is relatively fixed during the process of pressing the sealing ring 20 to slide into the installation groove 601, so that the sealing ring 20 can smoothly fall into the installation groove 601. One function of the limiting portion 50 is to limit the sealing ring 20 to be installed carried by the first outer peripheral surface 103 of the introduction rod 10, so as to prevent the sealing ring 20 from falling out of the sealing ring installation jig when the sealing ring installation jig is placed flat or the second end 102 of the introduction rod 10 is placed downward. Another function of the limiting portion 50 is that during the installation of the sealing ring 20, the user of the sealing ring installation jig presses the limiting portion 50 with his fingers, thereby ensuring good contact between the sealing ring installation jig and the predetermined structure 60, and facilitating the smooth installation of the sealing ring 20. In this embodiment, the limiting portion 50 and the introduction rod 10 are connected by threads.

[0049] It can be seen that the present application solves the problems of complicated procedures, increased working hours, sealing ring 20 breakage, low efficiency, etc. in the previous installation process of the sealing ring 20, and improves the convenience and reliability. The sealing ring installation fixture of the present application has a simple and reliable structure, strong versatility, and extremely high practical application value.

[0050] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0051] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealing ring installation jig, characterized in that: include: An introduction rod (10), wherein the introduction rod (10) is used to introduce a sealing ring (20) to be installed; an expansion portion (30), the expansion portion (30) being arranged at the first end (101) of the introduction rod (10), the cross-sectional area of ​​the expansion portion (30) gradually increasing in a direction away from the introduction rod (10), the cross-sectional area of ​​the expansion portion (30) being the cross-sectional area obtained by cutting the expansion portion (30) in a direction perpendicular to the length of the introduction rod (10); A positioning portion (40) is arranged on the expansion portion (30) to limit the sealing ring installation fixture on a predetermined structure (60).

2. The sealing ring installation jig according to claim 1, characterized in that: The expansion portion (30) comprises a conical structure (31), the tip of the conical structure (31) is connected to the introduction rod (10), and the positioning portion (40) is arranged at an end of the conical structure (31) away from the introduction rod (10).

3. The sealing ring installation jig according to claim 1, characterized in that: The positioning portion (40) comprises a positioning groove (41) or a positioning protrusion.

4. The sealing ring installation jig according to claim 1, characterized in that: The expansion portion (30) is detachably connected or fixedly connected to the introduction rod (10).

5. The sealing ring installation jig according to claim 1, characterized in that: A second outer peripheral surface (301) of the expansion portion (30) at one end close to the introduction rod (10) is connected to and flush with a first outer peripheral surface (103) of the introduction rod (10).

6. The sealing ring installation jig according to claim 1, characterized in that: The sealing ring installation fixture also includes a limiting portion (50), which is arranged at a second end (102) of the introduction rod (10) opposite to the first end (101), and the limiting portion (50) has a protruding portion (501) protruding from the outer peripheral surface of the introduction rod (10).

7. The sealing ring installation jig according to claim 6, characterized in that: The limiting portion (50) comprises a limiting ring (51) and a connecting section (52), wherein the connecting section (52) is connected to the limiting ring (51) and is detachably connected to the second end (102) of the introduction rod (10).

8. The sealing ring installation jig according to claim 7, characterized in that: The connecting section (52) is connected to the second end (102) of the introduction rod (10) by means of a threaded connection or a snap connection.

9. The sealing ring installation jig according to claim 6, characterized in that: The maximum dimension of the limiting portion (50) in the radial direction of the introduction rod (10) is greater than the inner diameter of the sealing ring (20).

10. The sealing ring installation jig according to any one of claims 1 to 9, characterized in that: The outer diameter of the introduction rod (10) should be smaller than the inner diameter of the sealing ring (20).

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