In-hole O-shaped ring mounting tool

Abstract

The utility model discloses a tool for installing an O-shaped ring in a hole, which relates to the field of sealing rings, solves the technical problems that the O-shaped ring cannot be assembled in place at one time and the efficiency is low when the O-shaped ring is installed in the prior art, and comprises an installation rod used for installing and fixing the O-shaped ring, and further comprises a fixed base matched with the installation rod for use, and the installation rod is provided with a first through hole penetrating through the two ends of the installation rod. A mounting groove is formed in the bottom and is communicated with the first through hole; the sliding mandrel is arranged in the first through hole, and the bottom end of the sliding mandrel can move into the mounting groove from the first through hole; the fixing base is used for being placed in a deep hole inner wall groove structure, the sliding mandrel pushes the O-shaped ring out of the mounting groove, and the mounting rod is matched with the top of the fixing base to push the O-shaped ring into a groove of the deep hole inner wall groove structure. The tool is simple in structure, low in manufacturing cost, easy to operate and low in starting cost, the O-shaped ring does not need to be adjusted, installation is accurate, the O-shaped ring can be rapidly and successfully installed, and reworking is not needed.

Description

Technical Field

[0001] The utility model relates to the field of sealing rings, in particular to an O-ring installation tool for a hole. Background Art

[0002] Installing O-rings in deep-hole inner wall groove structures is a conventional sealing method. However, the limitations of the small inner hole diameter and the deep installation position of the O-ring increase the difficulty of installing the O-ring. Even skilled assemblers cannot guarantee accurate assembly in one go, and the O-ring needs to be removed and reassembled, which is inefficient.

[0003] The commonly used installation method for inner hole O-rings is to use a sealing ring twister. The three torsion support rods of the twister clamp the O-ring, deforming the O-ring, and then inserting one side of the O-ring into the groove. After releasing the twister, the O-ring recovers its deformation and completely fills the groove. However, due to the small diameter of the inner hole and the narrow space when the installation position is deep, the light is insufficient, and it is not convenient to observe, so it is impossible to accurately align the O-ring with the groove. In addition, the surface of the O-ring is smooth and the clamping is unstable. Even if it is not touched, unstable hand strength will cause the O-ring to fall off the twister. In addition, the specifications and material hardness of the O-ring are different, and the trend of the O-ring recovering its elastic deformation after the twister is released cannot be controlled, which can easily cause upward or downward distortion, resulting in the O-ring recovering its deformation and being unable to fill the groove. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problem that the existing deep hole inner wall groove structure cannot be assembled into place in one go when installing the O-ring, and reassembly is required, which is inefficient. The utility model provides an in-hole O-ring installation tool with a simple structure, low production cost, simple operation, low start-up cost, no need to adjust the O-ring, accurate installation, and can quickly and successfully install the O-ring without rework.

[0005] To solve the above technical problems, the embodiment of the present utility model discloses an in-hole O-ring installation tool, which is used in a groove structure on the inner wall of a deep hole, and includes a mounting rod, which is used to install and fix the O-ring. It is characterized in that it also includes a fixing base used in conjunction with the mounting rod;

[0006] The mounting rod is provided with a first through hole penetrating through both ends of the mounting rod, and a mounting groove is provided at the bottom of the mounting rod, an O-ring is arranged in the mounting groove, and the first through hole is connected to the mounting groove;

[0007] A sliding core shaft is disposed in the first through hole in the mounting rod and is capable of reciprocating along the extending direction of the first through hole, and a bottom end of the sliding core shaft is capable of moving from the first through hole to the mounting groove;

[0008] The fixed base is used to be placed in the groove structure of the inner wall of the deep hole. A support assembly is provided at the bottom of the fixed base. The support assembly is used to support the fixed base in the groove structure of the inner wall of the deep hole and make the top of the fixed base close to the groove of the groove structure of the inner wall of the deep hole;

[0009] The sliding core shaft pushes the O-ring out of the installation groove, and the O-ring is pushed into the groove of the groove structure on the inner wall of the deep hole through the installation rod and the top of the fixed base.

[0010] The above technical solution has a simple structure, low production cost, simple operation, low start-up cost, no need to adjust the O-ring, accurate installation, and the O-ring can be installed quickly and successfully without rework.

[0011] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the mounting rod is provided with a guide hole connected to the first through hole, and the O-ring mounting tool in the hole also includes a pushing member, which passes through the guide hole and is detachably connected to the sliding core shaft, and the pushing member can drive the sliding core shaft to move back and forth along the guide hole.

[0012] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the sliding mandrel includes:

[0013] The main rod is disposed in the first through hole. The pusher is detachably connected to the main rod. The main rod is hollow and has a cavity extending through its bottom end. The inner side wall of the cavity has a guide groove arranged along the extension direction of the main rod.

[0014] The secondary rod is slidably mounted in the cavity. A guide protrusion is provided on the secondary rod. The secondary rod slides along the guide groove through the guide protrusion and extends out of the main rod.

[0015] The main rod is used to drive the secondary rod to extend out of the first through hole into the installation groove, and the secondary rod is used to push the O-ring out of the installation groove.

[0016] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that along the extension direction of the guide groove, the guide groove is provided with a plurality of positioning through holes arranged at equal intervals, and the guide protrusion is an elastic protrusion. When the guide protrusion moves to one of the positioning through holes, the guide protrusion can extend out of the positioning through hole so that the secondary rod is fixedly installed in the main rod.

[0017] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that a spherical groove is opened at the bottom end of the sliding core shaft, and the O-ring installation tool in the hole also includes a spherical elastic part, which is installed in the spherical groove and partially extends out of the spherical groove, and the sliding core shaft is in contact with the O-ring through the elastic part.

[0018] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the top surface of the fixed base is provided with a groove and a T-shaped groove connected to the groove notch, and the sliding core shaft is provided with an annular groove near the top end. The top end of the sliding core shaft can extend into the groove and slide into the T-shaped groove through the groove. The sliding core shaft cooperates with the annular groove and the T-shaped groove to pull the fixed base out of the deep hole inner wall groove structure.

[0019] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the support assembly includes:

[0020] A support rod and a receiving cavity are provided in the fixed base, and the support rod is arranged in the receiving cavity;

[0021] The connecting part is connected to the fixed base, and the connecting part is provided with a channel running through both ends. The support rod is partially located in the channel, and a tongue is provided on the inner side wall of the channel. The center of the tongue is rotatably connected to the channel. The first end of the tongue is in contact with the support rod through an elastic member to fix the support rod in the channel. The second end of the tongue is connected to a button provided on the connecting part. When the button is pressed, the second end of the tongue lifts the first end of the tongue, and the support rod slides along the channel and extends out of the connecting part.

[0022] According to another specific embodiment of the present invention, the embodiment of the present invention discloses a groove provided on the inner wall of the channel, a tongue piece is arranged in the groove, the groove also has a second through hole connected to the outer wall of the connecting part, and a button is arranged on the outer wall of the connecting part, and the button is connected to the second end of the tongue piece through a connecting rod arranged in the second through hole.

[0023] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that the bottom end of the installation groove is chamfered, and the inner wall of the installation groove is provided with anti-slip grooves for fixing the O-ring to prevent the O-ring from slipping or shifting.

[0024] According to another specific embodiment of the present invention, the embodiment of the present invention discloses that a groove is opened in the installation groove, and also includes a bushing, which is slidably installed in the installation groove. A plurality of bushings are provided, and the inner diameter of each bushing decreases successively.

[0025] The beneficial effects of the present application are: providing an in-hole O-ring installation tool with a simple structure, low production cost, simple operation, low start-up cost, no need to adjust the O-ring, accurate installation, and the O-ring can be installed quickly and successfully without rework. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A cross-sectional view of an O-ring installation tool in a hole according to an embodiment of the present invention is shown;

[0027] Figure 2A schematic diagram showing the structure of the sliding mandrel of the in-hole O-ring installation tooling according to an embodiment of the present invention is shown;

[0028] Figure 3 A cross-sectional view showing the mounting rod of the in-hole O-ring mounting fixture according to an embodiment of the present invention;

[0029] Figure 4 A schematic diagram showing the structure of a fixed base of an in-hole O-ring installation tool according to an embodiment of the present invention is shown;

[0030] Figure 5 A cross-sectional view showing a fixed base of an in-hole O-ring installation tool according to an embodiment of the present invention;

[0031] Figure 6 The figure shows the overall structure of the O-ring installation tool in the hole according to the embodiment of the present utility model.

[0032] Among them, 1. Mounting rod; 11. Guide hole; 12. Mounting groove; 13. Annular groove; 14. First through hole; 2. Sliding core shaft; 21. Main rod; 211. Positioning through hole; 22. Secondary rod; 221. Guide protrusion; 3. Pusher; 4. O-ring; 5. Fixed base; 51. Groove; 52. T-slot; 53. Support assembly; 531. Connecting part; 532. Support rod; 533. Button. DETAILED DESCRIPTION

[0033] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0034] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0036] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0037] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0039] Example 1:

[0040] Reference Figures 1 to 6 The present application provides an in-hole O-ring installation tool for use in a deep hole inner wall groove structure, including a mounting rod 1, the mounting rod 1 is used to install and fix the O-ring 4, and also includes a fixing base 5 used in conjunction with the mounting rod 1; the mounting rod 1 is provided with a first through hole 14 passing through both ends of the mounting rod 1, and the bottom of the mounting rod 1 is provided with a mounting groove 12, the O-ring 4 is arranged in the mounting groove 12, and the first through hole 14 is connected to the mounting groove 12;

[0041] The sliding core shaft 2 is disposed in the first through hole 14 in the mounting rod 1 and can reciprocate along the extension direction of the first through hole 14. The bottom end of the sliding core shaft 2 can move from the first through hole 14 to the mounting groove 12.

[0042] The fixed base 5 has a support assembly 53 at its bottom, which abuts against the bottom of the deep hole inner wall groove structure. The fixed base 5 is used to be placed in the deep hole inner wall groove structure. The support assembly 53 is used to fix the fixed base 5 in the deep hole inner wall groove structure and make the top of the fixed base 5 close to the groove of the deep hole inner wall groove structure.

[0043] The sliding core shaft 2 pushes the O-ring 4 out of the installation groove 12 , and the O-ring 4 is pushed into the groove of the groove structure on the inner wall of the deep hole through the installation rod 1 in cooperation with the fixed base 5 .

[0044] In this embodiment, the mounting groove 12 at the bottom of the mounting rod 1 is shaped to match the outer shape of the O-ring 4. Its walls are smooth enough to reduce frictional resistance during insertion and removal, thus preventing damage. The depth of the mounting groove 12 is slightly smaller than the cross-sectional diameter of the O-ring 4, ensuring a stable placement of the O-ring 4 within the groove while facilitating its removal by the sliding mandrel 2. The width of the mounting groove 12 is designed to match the dimensions of the O-ring 4, ensuring that the O-ring 4 does not wobble within the groove and ensuring accurate installation.

[0045] The shape of the mounting groove 12 is adapted to the outer shape of the O-ring 4, which can ensure that the O-ring 4 is stably placed without shaking left and right or easily falling out, thereby laying the foundation for subsequent accurate installation during the installation preparation stage, improving the accuracy of the installation, and reducing the probability of subsequent installation failure due to unstable placement.

[0046] The smoothness treatment of the groove wall effectively reduces the friction resistance encountered by the O-ring 4 when it is inserted and subsequently pushed out, avoiding scratches, wear and other damages to the surface of the O-ring 4, ensuring the integrity and sealing performance of the O-ring 4, extending its service life, and thus ensuring the long-term reliability of the sealing effect in the deep hole.

[0047] The inner diameter of the first through-hole 14 and the outer diameter of the sliding mandrel 2 are clearance-fitted. This clearance ensures smooth reciprocating movement of the sliding mandrel 2 within the first through-hole 14 while preventing excessive wobbling that could affect the precision of pushing the O-ring 4. The inner wall of the first through-hole 14 can be polished to further reduce friction during movement of the sliding mandrel 2. The edge of the first through-hole 14 near the mounting groove 12 is appropriately chamfered to prevent scratching or other adverse effects on the O-ring 4 when the sliding mandrel 2 is extended.

[0048] The first through hole 14 and the sliding core shaft 2 are matched with a reasonable clearance, the inner wall is polished and the end is chamfered, so that the sliding core shaft 2 can move back and forth very smoothly inside it, which is more labor-saving and convenient to operate, and reduces the possibility of affecting the installation efficiency and quality due to problems such as jamming, and ensures that the action of pushing the O-ring 4 can be performed stably and efficiently.

[0049] The sliding mandrel 2 extends into one end of the mounting groove 12. Its end is shaped like an arc that matches the inner circle of the O-ring 4. This allows for more uniform force application when pushing the O-ring 4, preventing deformation of the O-ring 4 due to excessive local force. Furthermore, the end of the sliding mandrel 2 is wrapped with a wear-resistant and smooth material to reduce wear when in contact with the O-ring 4.

[0050] The end is designed in an arc shape that matches the inner circle of the O-ring 4 and is treated with a wear-resistant and smooth finish. This allows the force to be evenly distributed on the O-ring 4 when pushing it, preventing localized excessive force from causing deformation or distortion of the O-ring 4. This ensures that the O-ring 4 enters the groove structure on the inner wall of the deep hole in a well-formed manner, ensuring the sealing effect after installation and the normal function of the O-ring 4. The wear-resistant and smooth end material or treatment method reduces wear when in contact with the O-ring 4, not only protecting the O-ring 4 but also reducing wear on the sliding core shaft 2 itself, improving the overall durability of the tooling, and reducing usage costs and maintenance frequency.

[0051] The main shape of the fixed base 5 is adapted to the shape of the groove structure on the inner wall of the deep hole, and its outer diameter is slightly smaller than the inner diameter of the deep hole to facilitate placement therein. The support assembly 53 fixes the fixed base 5 in the groove structure on the inner wall of the deep hole, and places the top of the fixed base 5 close to the groove of the groove structure on the inner wall of the deep hole.

[0052] When installing the O-ring 4, adjust the support assembly 53 to an appropriate length according to the depth of the groove in the deep hole inner wall groove structure, place the fixed base 5 into the deep hole inner wall groove structure, manually insert the O-ring 4 into the installation groove 12, and the installation rod 1 fills one side of the O-ring 4 into the groove of the deep hole inner wall groove structure. Through the support limit of the fixed base 5, the O-ring 4 can be accurately filled into the groove. There is no need to observe and adjust by sight, and the installation can be completed by touch. Move the sliding core shaft 2 to push out the O-ring 4. After the O-ring 4 is separated from the installation groove 12, use the installation rod 1 to support the O-ring 4 around the groove, and push the remaining part of the O-ring 4 that has not been filled in the groove into the groove to complete the installation of the O-ring 4.

[0053] Through the orderly coordination between various components, the O-ring 4 and the fixed base 5 are first placed in place, and then the sliding core shaft 2 pushes and the installation rod 1 and the fixed base 5 work together, so that the entire O-ring 4 installation process is standardized and normalized, and each link is closely connected, which effectively improves the efficiency, accuracy and success rate of the installation. Under the premise of ensuring the sealing performance of the O-ring 4, the installation of the O-ring 4 in the groove structure on the inner wall of the deep hole can be completed quickly and with high quality. It is particularly suitable for various working conditions such as high requirements on installation accuracy and complex deep hole environment, which improves the practicality and value of the tooling in actual production applications.

[0054] The above technical solution has a simple structure, low production cost, simple operation, low start-up cost, no need to adjust the O-ring 4, accurate installation, and can quickly and successfully install the O-ring 4 without rework.

[0055] Example 2:

[0056] Reference Figures 1 to 3The mounting rod 1 is provided with a guide hole 11 connected to the first through hole 14. The O-ring installation tool in the hole also includes a pusher 3, which passes through the guide hole 11 and is detachably connected to the sliding core shaft 2. The pusher 3 can drive the sliding core shaft 2 to move back and forth along the guide hole 11.

[0057] In this embodiment, the shape of the guide hole 11 is generally designed to be elliptical, and its axis should be as parallel as possible to the axis of the first through hole 14. An external thread is provided at one end of the pusher 3, and an internal thread is provided at the corresponding position of the sliding core shaft 2.

[0058] The connection and disassembly can be achieved by rotating the pushing member 3, and the tightness of the connection can be adjusted by the tightening degree of the thread to ensure that there will be no loosening during the pushing process.

[0059] The pusher 3 adopts a detachable connection design, which is convenient for installation, debugging, and subsequent maintenance and replacement. For example, in the early stage of installing the tooling, if it is found that there is a problem with the connection between the pusher 3 and the sliding core shaft 2, or the pusher 3 is damaged, it can be quickly removed for adjustment or replaced with a new pusher 3 without affecting other parts of the entire tooling. Secondly, it is convenient to replace different types of pushers 3 according to different installation requirements. For example, if more precise control of the moving distance of the sliding core shaft 2 is required, a more accurate pusher 3 with scale markings can be replaced to improve the accuracy and flexibility of installation.

[0060] Example 3:

[0061] Reference Figure 2 The sliding core shaft 2 includes a main rod 21, which is arranged in the first through hole 14. The pushing member 3 is detachably connected to the main rod 21. The main rod 21 is hollow, and a cavity is provided inside it that passes through its bottom end. A guide groove is provided on the inner side wall of the cavity along the extension direction of the main rod 21; the secondary rod 22 is slidably installed in the cavity, and a guide protrusion 221 is provided on the secondary rod 22. The secondary rod 22 slides along the guide groove through the guide protrusion 221 and extends out of the main rod 21; wherein the main rod 21 is used to drive the secondary rod 22 to extend out of the first through hole 14 to the installation groove 12, and the secondary rod 22 is used to push the O-ring 4 out of the installation groove 12.

[0062] In this embodiment, the outer diameter of the main rod 21 is clearance-fitted with the first through-hole 14 within the mounting rod 1, ensuring that the main rod 21 can move smoothly back and forth within the first through-hole 14 without exhibiting noticeable wobbling that could affect the precise pushing of the O-ring 4. The main rod 21 is constructed of stainless steel, ensuring excellent rigidity and wear resistance to withstand repeated pushing operations. Its length is determined based on the dimensions of the mounting rod 1 and the required depth of the groove structure within the deep hole. This ensures that the main rod 21 is fully within the first through-hole 14 in its initial position and, when pushed to its limit, drives the secondary rod 22 to accurately push the O-ring 4 into the groove structure within the deep hole.

[0063] The main rod 21 and the first through hole 14 adopt a precise clearance fit. The strictly controlled clearance range effectively avoids the shaking of the main rod 21 during movement, so that it can move along the accurate direction and trajectory when pushing the O-ring 4, greatly improving the installation accuracy and ensuring that the O-ring 4 can be accurately pushed to the groove of the groove structure on the inner wall of the deep hole, reducing problems such as installation failure or poor sealing due to position deviation.

[0064] The rationally designed length of main rod 21 and its compatible dimensions within the hollow cavity allow it to adapt to the installation requirements of various mounting rods 1 and deep hole inner wall groove structures. Whether shallow or deep, main rod 21 can complete the task of driving secondary rod 22 to push O-ring 4 within the corresponding travel range, enhancing the versatility and practicality of the overall tooling.

[0065] The hollow cavity of the main rod 21 is designed to be circular in shape, and its inner diameter is adapted to the outer diameter of the secondary rod 22, so that the secondary rod 22 can slide flexibly in the cavity, ensuring the compactness of the overall structure. The number of guide grooves opened on the inner wall of the cavity of the main rod 21 can be set to 2-4, evenly distributed in the circumferential direction of the inner wall of the cavity. The width of the guide groove matches the width of the guide protrusion 221 on the secondary rod 22, so that the guide protrusion 221 can slide smoothly and accurately along the guide groove to prevent jamming or deflection. The depth of the guide groove is 1-2 mm, and the groove wall is polished to reduce the friction when the guide protrusion 221 slides, ensuring smooth sliding. The guide groove extends from the top to the bottom of the main rod 21, and its length is basically the same as the overall length of the main rod 21, providing sufficient sliding travel space for the secondary rod 22 to meet the installation requirements of the O-ring 4 in deep holes of different depths.

[0066] The evenly distributed guide grooves and the precise fit with the guide protrusions 221 of the secondary rod 22 provide a stable and precise sliding guide path for the secondary rod 22. During the pushing process, the secondary rod 22 can extend and retract along the guide grooves in a strictly predetermined direction, preventing abnormalities such as deflection and jamming. This ensures a smooth and consistent pushing motion of the O-ring 4, further improving installation reliability and efficiency.

[0067] The guide grooves are polished to a low surface roughness, which, combined with the appropriate clearance, effectively reduces the friction of the guide protrusions 221 during sliding. This allows the secondary rod 22 to slide extremely smoothly within the cavity of the primary rod 21, requiring less force from the operator when operating the pusher 3, making operation easier and more convenient. This also reduces heat and wear caused by friction, extending the service life of various components and optimizing the performance of the entire tooling.

[0068] The material of the secondary rod 22 is consistent with that of the main rod 21. The outer diameter of the secondary rod 22 is slightly smaller than the inner diameter of the cavity of the main rod 21 to achieve smooth sliding installation. Its length is designed to be completely accommodated in the cavity of the main rod 21 in the fully retracted state. When extended to the extreme position, the O-ring 4 can be completely pushed out of the installation groove 12 and accurately pushed to the groove of the groove structure on the inner wall of the deep hole.

[0069] The rational fit between the outer diameter of the secondary rod 22 and the inner diameter of the cavity of the primary rod 21, as well as its overall structural design, enables it to slide flexibly within the cavity, accurately extending and retracting under the drive of the primary rod 21. This ensures the compactness and reliability of the entire sliding mandrel 2, allowing it to stably cooperate with the primary rod 21 to push the O-ring 4 under various working conditions, and improves the tooling's adaptability to complex installation environments.

[0070] The secondary rod 22 extends out from one end of the main rod 21, and the end in contact with the O-ring 4 is designed to be an arc shape, and its curvature is adapted to the inner circle of the O-ring 4. The surface of the end is wrapped with a layer of soft rubber sheet to reduce the wear on the O-ring 4 and increase the friction with the O-ring 4, making the pushing process more stable and reliable, preventing the O-ring 4 from slipping when being pushed, and ensuring that the O-ring 4 can accurately enter the groove.

[0071] The end of secondary rod 22 is designed in an arc shape to match the inner diameter of O-ring 4 and is wrapped with a soft rubber sheet. This design ensures that the thrust is more evenly distributed on O-ring 4 when pushing it, avoiding problems such as distortion and deformation of the O-ring 4 due to localized excessive force. This helps the O-ring 4 enter the groove in a stable condition, ensuring installation quality and sealing effectiveness. The rubber sheet not only reduces wear on the O-ring 4 but also increases friction between the O-ring 4 and the rod. This effectively prevents the O-ring 4 from slipping during the pushing process, allowing secondary rod 22 to more stably and reliably push the O-ring 4 to the target groove position, improving the success rate of each installation operation and reducing the need for repeated operations due to unstable pushing.

[0072] In the initial state, secondary rod 22 is fully retracted within the cavity of primary rod 21, with pusher 3 connected to primary rod 21. Secondary rod 22 is pushed out of primary rod 21 to the appropriate position. When the O-ring 4 needs to be installed, the operator operates pusher 3, pushing primary rod 21 along first through-hole 14 toward mounting groove 12. As primary rod 21 moves, secondary rod 22 slides with primary rod 21 until it extends into mounting groove 12 and contacts O-ring 4. Primary rod 21 continues to move, driving secondary rod 22 to further and smoothly push O-ring 4 out of mounting groove 12. Ultimately, with the cooperation of mounting rod 1 and fixed base 5, O-ring 4 is accurately pushed into the groove structure on the inner wall of the deep hole.

[0073] Example 4:

[0074] Continue to refer to Figure 2 Along the extension direction of the guide groove, the guide groove is provided with a plurality of positioning through holes 211 arranged at equal intervals. The guide protrusion 221 is an elastic protrusion. When the guide protrusion 221 moves to one of the positioning through holes 211, the guide protrusion 221 can extend out of the positioning through hole 211 so that the secondary rod 22 is fixedly installed in the main rod 21.

[0075] In this embodiment, the positioning through holes 211 are arranged at equal intervals along the extension direction of the guide groove, and the spacing is reasonably designed according to the requirements of different working positions of the secondary rod 22 in the main rod 21. The spacing of the positioning through holes 211 is set between 5-15 mm according to the groove structure on the inner wall of the deep hole. This application sets the spacing of the positioning through holes 211 at 10 mm so that the secondary rod 22 can be accurately positioned at different extension lengths to meet the diverse installation depth requirements of the O-ring 4. The aperture size of the positioning through hole 211 is adapted to the outer diameter of the guide protrusion 221.

[0076] The elastic protrusion is primarily composed of a spring, a push rod, and a guide sleeve, all integrated and mounted within secondary rod 22. The spring is the key component providing the elastic force. The push rod, with one end in contact with the spring and the other extending from the main body of secondary rod 22, is designed to fit within positioning hole 211. It is typically hemispherical or truncated cone with a rounded top, facilitating smooth movement in and out of positioning hole 211. The guide sleeve, mounted within secondary rod 22, guides the push rod's movement, allowing it to follow the guide sleeve as the spring expands and contracts, allowing it to move in and out of secondary rod 22.

[0077] When the elastic protrusion slides in the guide groove, the push rod is squeezed by the guide groove wall, overcoming the elastic force of the spring and shrinking toward the inside of the secondary rod 22. At this time, the spring is compressed to store elastic potential energy; and when the push rod moves to the positioning through hole 211, it is no longer squeezed by the guide groove wall, and the spring releases the elastic potential energy, pushing the push rod outward so that it extends out of the positioning through hole 211, completing the fixing operation of the secondary rod 22 and the main rod 21.

[0078] In the initial state, the secondary rod 22 is located in the cavity of the main rod 21, and the elastic protrusion of the push rod is in the initial position partially extending out of the secondary rod 22 under the elastic force of the spring. When moving, the elastic protrusion is squeezed by the guide groove wall, and the push rod is pressed back into the secondary rod 22. The spring is in a compressed state. At this time, the secondary rod 22 can move with the main rod 21 in the first through hole 14.

[0079] As the pusher 3 drives the main rod 21 to move along the first through-hole 14 toward the mounting groove 12, the secondary rod 22 slides synchronously in cooperation with the guide groove and the guide protrusion 221. As the main rod 21 continues to move, when the ejector rod moves to one of the positioning through-holes 211, the ejector rod is no longer squeezed by the guide groove wall, and the spring immediately releases its elastic potential energy, pushing the ejector rod outward. The ejector rod smoothly extends out of the positioning through-hole 211, firmly fixing the secondary rod 22 in its corresponding position within the main rod 21, ready to push the O-ring 4 out of the mounting groove 12.

[0080] The spring-driven elastic projection extending through the positioning hole 211 ensures that the secondary rod 22 maintains a high degree of stability during operation. Even if the tooling is subject to slight external disturbances such as shaking or vibration during installation, the secondary rod 22 will not easily shift, ensuring a smooth and reliable push-through of the O-ring 4. This helps maintain the stability of the entire installation tooling, further improving installation quality and tooling reliability, reducing installation failures due to unexpected factors, and increasing production efficiency.

[0081] The design, which utilizes a spring-driven elastic projection for positioning and securing, is relatively simple and convenient to operate, eliminating the need for complex mechanical locking or unlocking devices. Operators can easily extend and retract the elastic projection and position and release the secondary rod 22 by applying minimal force using a simple, small tool. This convenient and quick control of the secondary rod 22 improves the efficiency of the entire O-ring 4 installation process while also reducing operational difficulty and labor intensity. This makes the tooling more readily accepted and usable in actual production applications, and allows for flexible adaptation to O-ring 4 installation requirements under varying operating conditions.

[0082] Example 5:

[0083] A spherical groove is provided at the bottom end of the sliding core shaft 2. The O-ring installation tool in the hole also includes a spherical elastic member. The elastic member is installed in the spherical groove and partially extends out of the spherical groove. The sliding core shaft 2 is in contact with the O-ring 4 through the elastic member.

[0084] In this embodiment, a spherical groove is formed at the bottom end of the sliding mandrel 2. Its shape is a hemispherical cavity, with a radius tailored to the size of the selected elastic member. The depth of the groove is determined by the diameter of the elastic member and the required deformation space when it subsequently contacts the O-ring 4. This provides the elastic member with adequate accommodation space, ensuring both stable installation and sufficient elastic deformation when subjected to force.

[0085] The axis of the spherical groove is aligned with the axis of the sliding mandrel 2. This ensures that when the elastic member is installed in the spherical groove, the force applied to the O-ring 4 is evenly transmitted along the axial direction of the sliding mandrel 2. This prevents problems such as uneven force on the O-ring 4 and unstable pushing due to deflection. The opening edge of the spherical groove is rounded to prevent scraping of the elastic member during extension and retraction, further ensuring the smooth movement of the elastic member and the reliability of the entire structure.

[0086] The elastic element is made of a rubber material with a high elastic modulus, good elastic recovery, and wear resistance. The hardness of the elastic element is selected based on the actual elastic deformation required and the required force applied to the O-ring 4. This ensures that the elastic element can produce sufficient elastic deformation when subjected to a certain pressure to adapt to the shape of the O-ring 4 and evenly transmit the thrust. It also quickly returns to its original shape after the pressure is removed, ensuring stable performance after repeated use.

[0087] The elastic part is spherical as a whole. The spherical shape design allows the elastic part to contact with the O-ring 4 in a point contact or a small area. Compared with other shapes, it can disperse the thrust more evenly, avoid local excessive pressure on the O-ring 4, which may cause deformation, damage, etc., and ensure the integrity and installation quality of the O-ring 4.

[0088] Example 6:

[0089] The surface of the elastic part is also provided with an anti-slip texture, which increases the friction between the elastic part and the inner wall of the spherical groove, making it more securely installed in the spherical groove. At the same time, it also helps to increase the friction between the elastic part and the O-ring 4, preventing slipping during the pushing process, thereby ensuring the stability and reliability of pushing the O-ring 4.

[0090] The elastic element is installed in the spherical groove with an interference fit, leveraging its inherent elasticity to secure it firmly within the groove after being pressed into it. Before installation, apply a small amount of grease to the surface of the elastic element to facilitate smooth insertion and reduce wear between the elastic element and the groove.

[0091] Example 7:

[0092] A small annular groove is provided at the bottom of the spherical groove, which can prevent the elastic part from loosening or shifting during long-term use. An annular protrusion is provided at the bottom of the elastic part. The cooperation between the protrusion and the annular groove can enhance the fixation of the elastic part in the spherical groove, ensure that it always maintains the correct position during repeated expansion and contraction deformation, and stably abuts against the O-ring 4.

[0093] In the initial state, the elastic member is installed in the spherical groove at the bottom end of the sliding core shaft 2. Due to the interference fit and the fixing effect of the annular groove and the protrusion, the elastic member is stably located in the spherical groove and partially extends out of the spherical groove, and is in a slight abutment state with the O-ring 4 placed in the mounting groove 12 of the mounting rod 1.

[0094] When the O-ring 4 needs to be installed, the operator drives the sliding core shaft 2 to move along the first through hole 14 toward the installation groove 12 through the pushing member 3. The sliding core shaft 2 then pushes the elastic member. The elastic member begins to be further compressed and deformed due to the reaction force from the O-ring 4. Its own elastic potential energy gradually increases, and at the same time, the thrust received is evenly transmitted to the O-ring 4, so that the O-ring 4 moves smoothly from the installation groove 12 to the groove structure on the inner wall of the deep hole.

[0095] During the entire pushing process, the elastic part always maintains close contact with the O-ring 4 due to its good elastic performance, and adaptively adjusts the degree of deformation according to the shape and force conditions of the O-ring 4, ensuring that the thrust acts evenly and stably on the O-ring 4 until the O-ring 4 is accurately pushed into the groove to complete the installation.

[0096] After the installation is completed, the sliding core shaft 2 moves in the opposite direction, the pressure on the elastic member gradually decreases, and the elastic member recovers to the initial state of partially extending out of the spherical groove by relying on its own elastic recovery ability, preparing for the next O-ring 4 installation operation.

[0097] Example 8:

[0098] Reference Figures 4 to 6 The top surface of the fixed base 5 is provided with a groove 51 and a T-slot 52 connected to the groove 51. The sliding core shaft 2 is provided with an annular groove 13 near the top. The top of the sliding core shaft 2 can extend into the groove 51 and slide into the T-slot 52 through the groove 51. The sliding core shaft 2 cooperates with the T-slot 52 through the annular groove 13 to pull the fixed base 5 out of the groove structure on the inner wall of the deep hole.

[0099] In this embodiment, the fixed base 5 is positioned within the groove structure on the inner wall of the deep hole, with the groove 51 facing upward. The sliding mandrel 2 is positioned outside the deep hole, with its top end aligned with the groove 51. The operator slowly inserts the top end of the sliding mandrel 2 axially into the groove 51. Because the top end of the sliding mandrel 2 is designed as an annular groove 13, the sliding mandrel 2 enters the groove 51 smoothly. Once the top end of the sliding mandrel 2 is fully inserted into the groove 51, the operator pushes the sliding mandrel 2 horizontally, sliding it within the groove 51 and aligning the annular groove 13 with the vertical portion of the T-slot 52. The operator then continues pushing the sliding mandrel 2, causing the annular groove 13 to slide downward along the vertical portion of the T-slot 52 until the annular groove 13 fully mates with the horizontal portion of the T-slot 52. Once the annular groove 13 fully mates with the horizontal portion of the T-slot 52, the operator pulls the sliding mandrel 2, allowing the annular groove 13 to mate with the T-slot 52, and removes the fixed base 5 from the groove structure on the inner wall of the deep hole.

[0100] Example 9:

[0101] Continue to refer to Figure 4 The supporting assembly 53 includes a supporting rod 532, an accommodating cavity is opened in the fixed base 5, and the supporting rod 532 is arranged in the accommodating cavity; a connecting portion 531 is connected to the fixed base 5, and the connecting portion 531 is opened with a channel running through both ends, and the supporting rod 532 is partially located in the channel, and a tongue is provided on the inner side wall of the channel, and the center of the tongue is rotatably connected to the channel. The first end of the tongue is in contact with the supporting rod 532 through an elastic member to fix the supporting rod 532 in the channel, and the second end of the tongue is connected to the button 533 set on the connecting portion 531. When the button 533 is pressed, the second end of the tongue lifts the first end of the tongue, and the support rod 532 slides along the channel and extends out of the connecting portion 531.

[0102] A groove is provided on the inner wall of the channel, and the tongue is arranged in the groove. The groove also has a second through hole connected to the outer wall of the connecting part 531. The button 533 is provided on the outer wall of the connecting part 531, and the button 533 is connected to the second end of the tongue through a connecting rod arranged in the second through hole.

[0103] The bottom end of the mounting groove 12 is chamfered, and the inner side wall of the mounting groove 12 is provided with anti-slip grooves for fixing the O-ring 4 to prevent the O-ring 4 from sliding or shifting.

[0104] In this embodiment, the support rod 532 is located in the accommodating cavity opened in the fixed base 5, and part of the support rod 532 extends to the channel opened by the connecting part 531. The support rod 532 is a force-bearing component of the support assembly 53 to support and fix the fixed base 5 in the deep hole inner wall groove structure. When the fixed base 5 is set in the deep hole inner wall groove structure, the support rod 532 extends out of the connecting part 531 and abuts against the bottom of the deep hole inner wall groove structure, bearing the corresponding force generated during the entire tooling and operation process, ensuring that the fixed base 5 can be firmly in the corresponding position, and providing a stable support foundation for the subsequent accurate installation of the O-ring 4 in the groove.

[0105] The connecting portion 531 is tightly connected to the fixed base 5 and has a passage running through both ends thereof, so that the supporting rod 532 can slide and extend in the passage.

[0106] A tongue is provided on the inner side wall of the channel. The center of the tongue is rotatably connected to the channel via a pin or other means, allowing the tongue to rotate around a rotational connection point, such as a lever structure. The first end of the tongue abuts against the support rod 532 via an elastic member. Under the elastic force of the elastic member, the first end of the tongue is tightly pressed against the support rod 532, thereby fixing the position of the support rod 532 within the channel, ensuring that the entire support assembly 53 is in a stable state when not in operation, and preventing the support rod 532 from accidentally sliding out. The second end of the tongue is connected to a button 533 provided on the connecting portion 531, so that the button 533 can be operated from the outside to control the rotation of the tongue and thereby affect the state of the support rod 532.

[0107] When the fixing base 5 needs to be fixed in the groove structure on the inner wall of the deep hole, the operator presses the button 533 on the connecting portion 531. When the button 533 is subjected to force, the force is transmitted to the second end of the tongue through the structure connected to it. When the force is applied to the second end of the tongue, it rotates around the central rotation connection point, thereby tilting the first end of the tongue, so that the abutment pressure of the first end of the tongue on the support rod 532 disappears, and the fixing restriction on the support rod 532 is released. At this time, the support rod 532 can slide smoothly along the channel and extend out of the connecting portion 531 under the action of gravity, creating stable tooling support conditions for the subsequent installation of the O-ring 4.

[0108] The chamfered bottom of the mounting groove 12 forms a smooth transition slope. This slope guides the O-ring 4 more smoothly into the mounting groove 12 when it is placed. This allows the operator to easily and quickly place the O-ring 4 precisely, effectively saving time preparing the O-ring 4 before installation and improving the initial efficiency of the entire installation process. During placement, the chamfered corners prevent direct contact between the O-ring 4 and the sharp corners at the bottom of the mounting groove 12. This reduces the potential risk of damage to the O-ring 4 and ensures that it can properly perform its sealing and other functions during subsequent installation and use.

[0109] The anti-slip grooves on the inner sidewalls of mounting groove 12 significantly increase friction with the outer surface of O-ring 4. During various operations of the tooling, such as moving and adjusting its position, and waiting for the sliding mandrel 2 to release the O-ring 4, the anti-slip grooves ensure that the O-ring 4 remains securely within mounting groove 12, preventing it from easily slipping out due to slight shaking, tilting, or other external forces. This is crucial for maintaining a continuous and stable installation process, avoiding the tedious tasks of repositioning and adjusting the O-ring 4 due to accidental slippage, and improving installation efficiency.

[0110] Example 10:

[0111] A groove is formed in the mounting groove 12 and also includes a bushing. The bushing is slidably mounted in the mounting groove 12. There are multiple bushings, and the inner diameter of each bushing decreases sequentially.

[0112] In this embodiment, the groove shape in the mounting groove 12 is generally designed to match the outer shape of the bushing to ensure that the bushing can be stably embedded therein and slide along the groove. Depending on the size of the mounting groove 12 and the specification range of the O-ring 4 to be adapted, the number of grooves can be set to 1-3.

[0113] The bushing has good wear resistance and good self-lubrication, can minimize wear during sliding, and has high chemical stability. The inner diameters of multiple bushings decrease in sequence, and the extent of the reduction is determined based on the inner diameter specification range of common O-rings 4 and installation accuracy requirements.

[0114] When installing the bushings, slide them into the corresponding positions along the grooves in the installation groove 12 in order from largest to smallest inner diameter. Select the appropriate bushing combination based on the actual inner diameter of the O-ring 4 to be installed. For example, if the inner diameter of the O-ring 4 is slightly larger than the inner diameter of a certain bushing, but smaller than the inner diameter of the adjacent larger inner diameter bushing, you can consider using a bushing with a smaller inner diameter and, by appropriately increasing the number of bushings, fine-tune the fixing effect on the O-ring 4 so that it can be firmly fixed without causing deformation or difficulty in ejection due to overtightening. At the same time, during use, if the bushing is found to be worn, deformed, or otherwise affecting its performance, it can be easily removed from the installation groove 12 and replaced to ensure the normal use of the tooling and the adaptability of the O-ring 4.

[0115] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An O-ring installation tool for a deep hole, used in a groove structure on the inner wall of the deep hole, comprising a mounting rod (1), wherein the mounting rod (1) is used to install and fix the O-ring (4), characterized in that: Also included is a fixed base (5) for use with the mounting rod; The mounting rod (1) is provided with a first through hole (14) penetrating both ends of the mounting rod (1), a mounting groove (12) is provided at the bottom of the mounting rod (1), the O-ring (4) is arranged in the mounting groove (12), and the first through hole (14) is connected to the mounting groove (12); A sliding core shaft (2) is disposed in the first through hole (14) in the mounting rod (1) and is capable of reciprocating along the extension direction of the first through hole (14), and the bottom end of the sliding core shaft (2) is capable of moving from the first through hole (14) to the mounting groove (12); The fixed base (5) is used to be placed in the deep hole inner wall groove structure, and a support assembly (53) is provided at the bottom of the fixed base (5), and the support assembly (53) is used to support the fixed base (5) in the deep hole inner wall groove structure and make the top of the fixed base (5) close to the groove of the deep hole inner wall groove structure; The sliding core shaft (2) pushes the O-ring (4) out of the installation groove (12), and pushes the O-ring (4) into the groove of the deep hole inner wall groove structure through the installation rod (1) in cooperation with the top of the fixed base (5).

2. The O-ring installation tool in a hole according to claim 1, characterized in that: The mounting rod (1) is provided with a guide hole (11) connected to the first through hole (14), and the O-ring mounting fixture in the hole further includes a pusher (3), the pusher (3) passing through the guide hole (11) and being detachably connected to the sliding core shaft (2), and the pusher (3) can drive the sliding core shaft (2) to move back and forth along the guide hole (11).

3. The in-hole O-ring installation tool according to claim 2, characterized in that: The sliding core shaft (2) comprises: A main rod (21) is disposed in the first through hole (14); the pusher (3) is detachably connected to the main rod (21); the main rod (21) is hollow, and a cavity is provided inside the main rod (21) and passes through the bottom end thereof; a guide groove is provided on the inner side wall of the cavity and is provided along the extension direction of the main rod (21); A secondary rod (22) is slidably mounted in the cavity, a guide protrusion (221) is provided on the secondary rod (22), and the secondary rod (22) slides along the guide groove through the guide protrusion (221) to extend out of the primary rod (21); The main rod (21) is used to drive the secondary rod (22) to extend out of the first through hole (14) into the installation groove (12), and the secondary rod (22) is used to push the O-ring (4) out of the installation groove (12).

4. The in-hole O-ring installation tool according to claim 3, characterized in that: Along the extension direction of the guide groove, the guide groove is provided with a plurality of positioning through holes (211) arranged at equal intervals. The guide protrusion (221) is an elastic protrusion. When the guide protrusion (221) moves to one of the positioning through holes (211), the guide protrusion (221) can extend out of the positioning through hole (211), so that the secondary rod (22) is fixedly installed in the main rod (21).

5. The in-hole O-ring installation tool according to claim 1, characterized in that: A spherical groove is provided at the bottom end of the sliding core shaft (2), and the in-hole O-ring installation tool further comprises a spherical elastic member, which is installed in the spherical groove and partially extends out of the spherical groove. The sliding core shaft (2) abuts against the O-ring (4) through the elastic member.

6. The in-hole O-ring installation tool according to claim 1, characterized in that: The top surface of the fixed base (5) is provided with a groove (51) and a T-slot (52) connected to the groove (51). The sliding core shaft (2) is provided with an annular groove (13) near the top. The top end of the sliding core shaft (2) can extend into the groove (51) and slide into the T-slot (52) through the groove (51). The sliding core shaft (2) cooperates with the T-slot (52) through the annular groove (13) to pull the fixed base (5) out of the deep hole inner wall groove structure.

7. The in-hole O-ring installation tool according to claim 1, characterized in that: The support assembly (53) comprises: A support rod (532), wherein a receiving cavity is provided in the fixed base (5), and the support rod (532) is arranged in the receiving cavity; A connecting portion (531) is connected to the fixed base (5), the connecting portion (531) is provided with a channel running through both ends, the support rod (532) is partially located in the channel, a tongue is provided on the inner side wall of the channel, the center of the tongue is rotatably connected to the channel, the first end of the tongue abuts against the support rod (532) through an elastic member, so that the support rod (532) is fixed in the channel, the second end of the tongue is connected to a button (533) provided on the connecting portion (531), when the button (533) is pressed, the second end of the tongue lifts the first end of the tongue, and the support rod (532) slides along the channel and extends out of the connecting portion (531).

8. The in-hole O-ring installation tool according to claim 7, characterized in that: A slot is provided on the inner side wall of the channel, the tongue piece is arranged in the slot, the slot further provides a second through hole connected to the outer side wall of the connecting portion (531), the button (533) is provided on the outer side wall of the connecting portion (531), and the button (533) is connected to the second end of the tongue piece via a connecting rod provided in the second through hole.

9. The in-hole O-ring installation tool according to claim 1, characterized in that: The bottom end of the mounting groove (12) is chamfered, and an anti-slip pattern is provided on the inner side wall of the mounting groove (12) for fixing the O-ring (4) to prevent the O-ring (4) from sliding or shifting.

10. The in-hole O-ring installation tool according to claim 1, characterized in that: A groove is provided in the installation groove (12), and a bushing is also provided. The bushing is slidably installed in the installation groove (12). A plurality of bushings are provided, and the inner diameter of each bushing decreases sequentially.

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