Sealing ring installation tool of anti-icing valve piston rod

Abstract

The utility model discloses a sealing ring installation tool of an anti-icing valve piston rod, and belongs to the field of anti-icing valve piston rod machining. The sealing ring installation tool of the anti-icing valve piston rod comprises a screw rod, an expansion pipe and an expansion block, the expansion pipe is arranged on the screw rod in a sleeving mode, a fixing mechanism used for fixing a sealing ring is arranged at the expansion end of the expansion pipe, the expansion block is detachably arranged at one end of the screw rod, and the expansion block is matched with the expansion end. The expansion block is provided with a limiting mechanism used for limiting the expansion end. According to the sealing ring mounting tool, the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of anti-icing valve piston rod processing, and in particular relates to a sealing ring installation tool for an anti-icing valve piston rod. Background Technology

[0002] The sealing ring of the anti-icing valve piston rod consists of an O-ring and a flexible wear-resistant ring. During installation, first install the O-ring onto the piston rod, then install the flexible wear-resistant ring onto the O-ring. Figure 1 As shown. The flexible wear-resistant ring is very thin and soft, with a thickness of less than 0.15mm. It has very little stretch, and once the stretch exceeds the limit, it cannot retract. Conventional tools are generally inefficient to install, and the flexible wear-resistant ring is prone to deformation and excessive stretch, which fails to meet the sealing effect, resulting in a high material scrap rate and low work efficiency. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a sealing ring installation tool for an anti-icing valve piston rod.

[0004] This utility model is achieved through the following technical solution: a sealing ring installation fixture for an anti-icing valve piston rod, including a screw, an expansion tube, and an expansion block. The expansion tube is sleeved on the screw, and the expansion end of the expansion tube is provided with a fixing mechanism for fixing the sealing ring. One end of the screw is detachably provided with an expansion block, which cooperates with the expansion end. The expansion block is provided with a limiting mechanism for limiting the expansion end.

[0005] Furthermore, the expansion block is fitted onto the screw.

[0006] Furthermore, a handle is provided at the other end of the screw.

[0007] Furthermore, a planar bearing is fitted onto the screw, and the planar bearing is located between the handle and the expansion tube.

[0008] Furthermore, the fixing mechanism includes a first annular flange extending around the outer surface of the expansion tube.

[0009] Furthermore, the expansion tube is provided with a plurality of first annular flanges spaced apart, and the outer diameter of the first annular flanges farther away from the expansion block is larger.

[0010] Furthermore, the limiting mechanism includes a second annular flange extending around the outer surface of the expansion block.

[0011] Furthermore, the sealing ring mounting fixture also includes a shaping sleeve, the inner diameter of which gradually decreases from one end to a preset position, and the inner diameter of which remains unchanged from the preset position to the other end.

[0012] Furthermore, the shaping sleeve is a POM tube.

[0013] Furthermore, the shaping sleeve has mounting holes on its tube wall, and the shaping sleeve can be detachably mounted on the screw through the mounting holes.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects: The sealing ring installation fixture in this utility model has a simple structure, which can conveniently and accurately expand the flexible wear-resistant ring to its limit without damaging the flexible wear-resistant ring, which facilitates the installation of the flexible wear-resistant ring, ensures the sealing performance of the flexible wear-resistant ring, and improves work efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 A schematic diagram of a structure in which a flexible wear-resistant ring is installed on the piston rod of an anti-icing valve;

[0017] Figure 2 This is a schematic diagram of a sealing ring installation fixture in this utility model;

[0018] Figure 3 This is a schematic diagram of one structure of the shaping sleeve in this utility model;

[0019] In the figure, 1—anti-icing valve piston rod, 2—flexible wear-resistant ring, 3—screw, 4—expansion tube, 5—fixing mechanism, 6—expansion block, 7—limiting mechanism, 8—handle, 9—plane bearing, 10—shaping sleeve. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0022] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0023] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] like Figures 2 to 3 As shown, this utility model discloses a sealing ring installation fixture for an anti-icing valve piston rod.

[0025] like Figure 2 As shown, the sealing ring installation fixture for the anti-icing valve piston rod includes a screw 3, an expansion tube 4, and an expansion block 6. The expansion tube 4 is sleeved on the screw 3, and the expansion end of the expansion tube 4 is provided with a fixing mechanism 5 for fixing the sealing ring. One end of the screw 3 is detachably provided with an expansion block 6, which is close to the expansion end and cooperates with the expansion end. The expansion block 6 is provided with a limiting mechanism 7 for limiting the expansion end.

[0026] The process of installing the flexible wear-resistant ring 2 using the sealing ring installation fixture in this embodiment is as follows: First, remove the expansion block 6 from the screw 3, then install the flexible wear-resistant ring 2 onto the fixing mechanism 5, and then install the expansion block 6 onto the screw 3; fix the expansion block 6, rotate the screw 3 to expand the expansion tube 4, and the flexible wear-resistant ring 2 expands along with the expansion tube 4; when the expansion tube 4 abuts against the expansion block 6, the flexible wear-resistant ring 2 expands to its limit, then remove the expansion block 6, then remove the flexible wear-resistant ring 2, and install the flexible wear-resistant ring 2 onto the anti-icing valve piston rod 1.

[0027] When the expansion block 6 is fixed and the screw 3 is rotated, the expansion tube 4 expands and moves toward the expansion block 6 along its axis. When the expansion tube 4 comes into contact with the limiting mechanism 7, the expansion tube 4 is blocked by the limiting mechanism 7 and cannot continue to expand, thereby preventing the flexible wear-resistant ring 2 on the expansion tube 4 from exceeding its expansion limit.

[0028] The position of the limiting mechanism 7 on the expansion block 6 is determined according to the expansion limit of the flexible wear-resistant ring 2.

[0029] The sealing ring installation fixture provided in this embodiment has a simple structure and is easy to use. It allows the flexible wear-resistant ring 2 to expand to its limit, thereby improving the installation efficiency and quality of the flexible wear-resistant ring 2.

[0030] In some embodiments of this example, the expansion block 6 is sleeved on the screw 3.

[0031] For example, the expansion block 6 is provided with a threaded hole, which is used to detachably install the expansion block 6 onto the screw 3 through the engagement of the threaded hole with the screw 3.

[0032] In some embodiments of this example, a handle 8 is provided at the other end of the screw 3. These embodiments provide a handle 8 on the screw 3 to facilitate gripping the sealing ring installation fixture.

[0033] The handle 8 can take various shapes, such as a regular prism or a frustum.

[0034] The handle 8 may be provided with an anti-slip structure, for example, the grip surface of the handle 8 may be provided with anti-slip protrusions.

[0035] The handle 8 can be mounted on the screw 3 in one of a variety of ways, such as welding the handle 8 to the screw 3, or the handle 8 being integrally formed with the screw 3.

[0036] In some embodiments of this example, a planar bearing 9 is sleeved on the screw 3, and the planar bearing 9 is located between the handle 8 and the expansion tube 4.

[0037] The plane bearing 9 can reduce the wear of the expansion tube 4 and extend the service life of the sealing ring installation fixture.

[0038] In some embodiments of this example, the fixing mechanism 5 includes a first annular flange extending around the outer surface of the expansion tube 4. When expanding the flexible wear-resistant ring 2 using the sealing ring mounting fixture in these embodiments, the flexible wear-resistant ring 2 is first fitted onto the first annular flange, thereby fixing the flexible wear-resistant ring 2 to the expansion tube 4.

[0039] In some embodiments of this example, the expansion tube 4 is provided with a plurality of first annular flanges spaced apart, and the outer diameter of the first annular flanges farther away from the expansion block 6 is larger.

[0040] For example, multiple first annular flanges are spaced apart on the expansion tube 4. The further away the first annular flange is from the expansion block 6, the larger its outer diameter. When expanding the flexible wear-resistant ring 2, multiple flexible wear-resistant rings 2 are installed on multiple first annular flanges respectively. At most one flexible wear-resistant ring 2 is installed on each first annular flange, so that multiple flexible wear-resistant rings 2 can be expanded at one time and expanded to their limit at the same time, thus improving work efficiency.

[0041] In some embodiments of this example, the limiting mechanism 7 includes a second annular flange extending around the outer surface of the expansion block 6. When the flexible wear-resistant ring 2 is expanded using the sealing ring mounting fixture in these embodiments, when the expansion tube 4 contacts the second annular flange, the flexible wear-resistant ring 2 expands to its limit, and the second annular flange blocks the expansion tube 4, limiting the expansion tube 4 from continuing to expand and preventing the flexible wear-resistant ring 2 from exceeding its expansion limit.

[0042] In some implementations of this embodiment, such as Figure 3 As shown, the sealing ring installation fixture also includes a shaping sleeve 10. The inner diameter of the shaping sleeve 10 gradually decreases from one end to a preset position, while the inner diameter of the shaping sleeve 10 remains unchanged from the preset position to the other end.

[0043] After the flexible wear-resistant ring 2 is installed onto the anti-icing valve piston rod 1, the flexible wear-resistant ring 2 is sized using the shaping sleeve 10. Specifically, the shaping sleeve 10 is first installed onto the anti-icing valve piston rod 1 through the end with the larger inner diameter. Then, the shaping sleeve 10 is moved until it passes over the flexible wear-resistant ring 2. The shaping sleeve 10 shapes the flexible wear-resistant ring 2 by compression. Finally, the shaping sleeve 10 is removed from the anti-icing valve piston rod 1.

[0044] The inner diameter of the shaping sleeve 10 is determined according to the specifications of the anti-icing valve piston rod 1 and the flexible wear-resistant ring 2.

[0045] In some embodiments of this example, the shaping sleeve 10 is a POM tube.

[0046] POM (polyoxymethylene) has self-lubricating properties. The shaping sleeve 10 made of POM can effectively prevent damage to the flexible wear-resistant ring 2 when the flexible wear-resistant ring 2 is sized.

[0047] In some embodiments of this example, the shaping sleeve 10 has mounting holes on its tube wall, and the shaping sleeve 10 can be detachably mounted on the screw 3 through the mounting holes.

[0048] When storing the sealing ring installation fixtures in these embodiments, the shaping sleeve 10 is detachably installed on the screw 3 by means of threaded engagement, and then stored.

[0049] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fixture for installing the sealing ring on the piston rod of an anti-icing valve, characterized in that, It includes a screw, an expansion tube, and an expansion block. The expansion tube is sleeved on the screw, and the expansion end of the expansion tube is provided with a fixing mechanism for fixing a sealing ring. One end of the screw is detachably provided with an expansion block, which cooperates with the expansion end. The expansion block is provided with a limiting mechanism for limiting the expansion end.

2. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 1, characterized in that, The expansion block is fitted onto the screw.

3. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 1, characterized in that, The other end of the screw is provided with a handle.

4. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 3, characterized in that, A planar bearing is fitted onto the screw, and the planar bearing is located between the handle and the expansion tube.

5. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 1, characterized in that, The fixing mechanism includes a first annular flange extending around the outer surface of the expansion tube.

6. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 5, characterized in that, The expansion tube is provided with multiple first annular flanges at intervals, and the outer diameter of the first annular flange is larger the farther away from the expansion block.

7. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 1, characterized in that, The limiting mechanism includes a second annular flange extending around the outer surface of the expansion block.

8. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 1, characterized in that, The sealing ring installation fixture also includes a shaping sleeve, the inner diameter of which gradually decreases from one end to a preset position, and the inner diameter of which remains unchanged from the preset position to the other end.

9. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 8, characterized in that, The shaping sleeve is a POM tube.

10. The sealing ring installation fixture for the anti-icing valve piston rod according to claim 8, characterized in that, The shaping sleeve has mounting holes on its tube wall, and the shaping sleeve can be detachably mounted on the screw through the mounting holes.

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