A seal ring installation tool

Abstract

The utility model relates to installation tool technical field discloses a kind of sealing ring installation tools, including fixed mechanism, drive mechanism and hand pole;The fixed mechanism includes mounting disc and the C-shaped elastic sheet and a pair of clamping blocks set on it, the outside of a pair of clamping blocks is matched and is arc-shaped, and the inside between the pair of clamping blocks is left gap, C-shaped elastic sheet is set in gap;The drive mechanism includes a pair of pulley, a flexible conveyor belt and a tow rope, each pulley is set in corresponding clamping block side, pulley is rolling connection flexible conveyor belt, the both ends of flexible conveyor belt respectively pass the two holes on the mounting disc far from pulley side and are all connected with the tow rope;The hand pole is fixedly connected on the mounting disc.The utility model aims at reducing or saving artificial direct operation, reduces labor intensity, ensures sealing ring installation position accurate, posture correct, while avoiding injury, to solve the problem of deep narrow instrument cylinder internal sealing ring manual installation difficulty, low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of installation tool technology, and in particular to a sealing ring installation tool. Background Technology

[0002] Bridge-perforation fracturing, a core technology for horizontal well staged fracturing, enables continuous operation of perforation, setting, and fracturing via cable or coiled tubing, significantly improving construction efficiency. Its key element lies in the reliable operation of the setting tool: the propellant propulsion system releases high-pressure gas within milliseconds, driving the piston mechanism to complete slip anchoring and rubber sleeve sealing, forming a high-pressure isolation ring. However, the success of this process highly depends on the precise sealing of the deep, narrow cavities inside the setting tool (such as the propellant chamber and piston cylinder), and the assembly quality of the sealing rings directly determines the airtightness. These sealing rings are typically located in the middle of the instrument, in extremely confined space, posing multiple challenges to traditional manual operation.

[0003] Currently, operators must assemble the seals manually within deep and narrow cavities, limiting hand movement and taking over 10 minutes per installation. Manual operation makes precise control of the sealing ring's position difficult, easily leading to twisting, damage, or improper installation, significantly increasing the risk of seal failure. Simultaneously, prolonged, meticulous work greatly increases worker fatigue, severely challenging overall construction efficiency and quality stability. While existing technologies have explored various approaches, the solution in patent CN223115070U, which uses an oblique positioning rod to stretch the sealing ring for installation, is unsuitable for the deep and narrow internal environment of instrument tubes. Invention patent CN118952106A, employing an expansion block and drive assembly structure, improves installation accuracy and sealing effect, but its complex structure makes rapid deployment in confined spaces difficult. None of these solutions completely solve the compatibility problem of sealing ring installation within deep and narrow instrument tubes. Utility Model Content

[0004] To address existing problems, this utility model provides a sealing ring installation tool, which aims to reduce or eliminate direct manual operation through a mechanized approach, thereby reducing labor intensity, ensuring accurate installation position and correct posture of the sealing ring, avoiding damage, and improving installation quality and reliability. This solves the problems of difficult and inefficient manual installation of sealing rings inside deep and narrow instrument cylinders, and fills the technological gap in efficient assembly tools for precision sealing rings in deep and narrow cavities.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A sealing ring installation tool includes a fixing mechanism, a driving mechanism, and a hand handle. The fixing mechanism includes a mounting plate, a C-shaped elastic piece, and a pair of clamping blocks disposed thereon. The outer sides of the pair of clamping blocks are fitted together in an arc shape, and a gap is left between the inner sides of the pair of clamping blocks, with the C-shaped elastic piece disposed in the gap. The driving mechanism includes a pair of pulleys, a flexible conveyor belt, and a traction rope. Each pulley is disposed on one side of a corresponding clamping block, and the pulleys are rotatably connected to the flexible conveyor belt. The two ends of the flexible conveyor belt pass through two holes on the mounting plate away from the pulleys and are both connected to the traction rope. The hand handle is fixedly connected to the mounting plate.

[0007] As a further improvement of this utility model, it also includes a sealing ring support; the mounting plate is provided with a slide rail at the corresponding gap position, and a slider is slidably connected on the slide rail, and the slider is fixedly connected to the sealing ring support.

[0008] As a further improvement of this utility model, the outer surface of the sealing ring support body is a smooth surface.

[0009] As a further improvement of this utility model, a groove is provided on one side edge of the sealing ring support to hook the sealing ring.

[0010] As a further improvement of this utility model, all the clamping blocks are branched.

[0011] As a further improvement of this utility model, holes are provided on the mounting plate at the branch points corresponding to the branch-shaped clamping blocks.

[0012] As a further improvement of this utility model, one of the pair of clamping blocks is fixed to the mounting plate, and the other is movably connected to the mounting plate.

[0013] As a further improvement of this utility model, the movable connection is a sliding connection along the plane of the mounting plate.

[0014] As a further improvement of this utility model, the axis of the pulley is perpendicular to the mounting plate.

[0015] As a further improvement of this utility model, at least one end of the C-shaped elastic sheet is fixedly connected to the mounting plate.

[0016] This utility model has the following beneficial effects: This sealing ring installation tool, through the cooperation of a fixing mechanism and a driving mechanism, can easily install the sealing ring into the corresponding position. The operator only needs to pull the traction rope, which drives the pulley to rotate through the flexible conveyor belt. In conjunction with the release of the C-shaped elastic plate, the bent sealing ring is released into a circular shape, stably expanding the sealing ring and installing it into the required sealing location. This greatly improves installation efficiency and reduces installation time and labor costs. The design of the fixing mechanism allows the sealing ring to be slightly curled up at the beginning to pass through the deep and narrow instrument tube. The C-shaped elastic plate provides a certain degree of compression and fixation, ensuring that the sealing ring remains in a contracted state before filling. The hand handle makes it easy for the operator to hold and control the entire tool, improving the stability and reliability of the installation process.

[0017] Preferably, the added sealing ring support can provide additional expansion force to the sealing ring during installation; through the cooperation of the slide and the slider, the sealing ring support can be positioned and adjusted under the drive of the flexible conveyor belt to apply expansion force in a directional manner, so as to avoid the sealing ring from winding or incomplete expansion.

[0018] Preferably, the smooth outer surface of the sealing ring support can reduce the friction between it and the sealing ring, avoiding scratches or wear on the surface of the sealing ring during installation, ensuring the integrity and sealing performance of the sealing ring, and extending the service life of the sealing ring; at the same time, the smooth surface allows the sealing ring to move more smoothly on the support, which is conducive to the accurate installation of the sealing ring to the target position, improving installation efficiency and quality.

[0019] Preferably, a groove is provided on one edge of the sealing ring support to hook the sealing ring, which can better fix the sealing ring during installation and prevent the sealing ring from falling off the support during movement or installation, ensuring a smooth installation process; the positioning function of the groove on the sealing ring can make the sealing ring reach the sealing position more accurately during installation, improving the installation accuracy and consistency, and ensuring the sealing effect.

[0020] Preferably, the clamping block is branched, which allows the flexible conveyor belt to be placed relatively independently, reducing the contact length between the flexible conveyor belt and the sealing ring, avoiding entanglement, and leaving enough space for the release of the flexible conveyor belt to drive the sealing ring to open outward.

[0021] Preferably, holes are provided on the mounting plate at the branch points corresponding to the branch-shaped clamps, which can guide the flexible conveyor belt to the rear side of the mounting plate, avoiding the space constraints between the flexible conveyor belt and the sealing ring on the front side. At the same time, it is convenient to use a hand lever on the rear side of the mounting plate to apply tension to the flexible conveyor belt.

[0022] Preferably, one of the pair of clamping blocks is fixed to the mounting plate, and the other is movably connected to the mounting plate. This design allows the position of the movable clamping block to be flexibly adjusted according to the size and shape of the sealing ring when installing it, thereby adjusting the opening and tightness and improving the adaptability and versatility of the tool.

[0023] Preferably, the movable connection is a sliding connection along the plane of the mounting plate, which makes the movement direction of the movable clamping block more precise and controllable. The operator can more accurately adjust the position and clamping force of the clamping block, thereby improving the accuracy and stability of the expansion force. The sliding connection along the plane usually has lower frictional resistance, and the movable clamping block moves more smoothly and steadily during the process, reducing the installation deviation of the sealing ring caused by unstable movement and ensuring the stability of the installation process.

[0024] Preferably, the axis of the pulley is perpendicular to the mounting plate. This setting ensures more stable contact between the flexible conveyor belt and the pulley during transmission, reduces slippage during transmission, and allows the spreading force of the traction rope to be more effectively transmitted to the sealing ring. The vertical axis design helps to rationally arrange the various components of the tool, making the overall structure of the tool more compact.

[0025] Optionally, at least one end of the C-shaped elastic sheet is fixedly connected to the mounting plate, which can ensure that the elastic sheet does not detach from the installation tool after deformation during installation and use, and avoids falling into deep and narrow cavities, causing difficulty in picking up and unnecessary contamination. Attached Figure Description

[0026] The accompanying drawings described herein are for illustrative purposes only and do not limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings: Figure 1 This is an overall view of a sealing ring installation tool as described in Example 1; Figure 2 This is a schematic diagram of the pre-deformation state of a sealing ring installation tool as described in Example 2; Figure 3 This is a schematic diagram showing the completed fitting state of a sealing ring installation tool as described in Example 2; Among them, 1. Top cover screw; 2. Top cover screw hole; 3. Top cover; 4. Clamping block; 5. Pulley; 6. Flexible conveyor belt; 7. Sealing ring support body; 8. Gap; 9. Mounting plate; 10. Limiting ring; 11. Traction rope; 12. Hand handle. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0028] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0029] Unless otherwise defined below, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Example 1 A sealing ring installation tool includes a fixing mechanism, a driving mechanism, a sealing ring support body 7, and a hand handle 12; the fixing mechanism is used to clamp and pre-deform the sealing ring.

[0031] like Figure 1 As shown, the fixing mechanism includes a mounting plate 9 and a C-shaped elastic sheet and a pair of clamping blocks 4 disposed thereon. The outer sides of the pair of clamping blocks 4 are in an arc shape, and a gap 8 is left between the inner sides of the pair of clamping blocks 4. A C-shaped elastic sheet (not shown) is disposed in the gap 8 to initially support the sealing ring.

[0032] The drive mechanism includes a pair of pulleys 5, a flexible conveyor belt 6, and a traction rope 11. Each pulley 5 is located on one side of the corresponding clamping block 4. The axis of the pulley 5 is perpendicular to the mounting plate 9. The pulley 5 is tumblingly connected to the flexible conveyor belt 6. The pulley 5 is used to guide the traction rope 11 and change its force direction.

[0033] The flexible conveyor belt 6 can be made of high-strength polyester fiber or thin steel belt. Its two ends pass through two holes on the side away from the pulley 5 of the mounting plate 9 and are connected to the traction rope 11. The flexible conveyor belt 6 is tightly fitted with the pre-deformed sealing ring in the initial state. The hand handle 12 is fixedly connected to the mounting plate 9.

[0034] Specifically, the handheld lever 12 uses a robust metal rod as its main frame, with an ergonomically designed handle fixed to its rear end. The front end of the main frame includes a mounting plate 9 and a raised limiting ring 10, the outer diameter of which is designed to match the inner diameter groove at the entrance of the target instrument cylinder (such as the gunpowder chamber of a setting tool). The limiting ring 10 is positioned at the front end of the tool or a specific location to engage with a pre-set groove or step inside the instrument cylinder, achieving precise positioning of the tool insertion depth and ensuring alignment of the sealing ring fixing groove with the target sealing groove inside the instrument cylinder.

[0035] A slide (not shown) is provided on the mounting plate 9 at the position corresponding to the gap 8. A slider is slidably connected on the slide, and the slider is fixedly connected to the sealing ring support 7. Preferably, the outer surface of the sealing ring support 7 is a smooth surface.

[0036] Optionally, one side edge of the sealing ring support 7 is provided with a groove that can hook the sealing ring.

[0037] like Figure 1 As shown, all of the clamping blocks 4 are branched.

[0038] like Figure 1 As shown, holes are provided on the mounting plate 9 at the branch points corresponding to the branches of the branch-shaped clamping block 4.

[0039] like Figure 1 As shown, the sealing ring installation tool in this embodiment also includes a top cover 3, which has a top cover screw hole 2. The top cover 3 can be fixedly connected to the corresponding hole on the mounting plate 9 by the top cover screw 1.

[0040] The installation time for a single sealing ring is reduced to approximately 20-30 seconds. Mechanical positioning and constraint release ensure precise installation, preventing damage or twisting of the sealing ring. Operation is simple; workers only need to perform a few actions: insertion, pulling the traction rope 11, rotation, and extraction. The tool has a reliable structure, and key components are easy to replace and maintain.

[0041] Example 2 The difference between this embodiment and Embodiment 1 is that: 1) One of the pair of clamping blocks 4 is fixed to the mounting plate 9, and the other is movably connected to the mounting plate 9.

[0042] 2) The movable connection is a sliding connection along the plane of the mounting plate 9.

[0043] 3) At least one end of the C-shaped elastic sheet is fixedly connected to the mounting plate 9.

[0044] A pair of clamping blocks 4 constitute an openable clamp for clamping and forcing the sealing ring into a specific shape, such as a U-shape. Specifically, one clamping block 4 can be moved toward and clamped to the other clamping block 4 via a threaded push rod or a simple lever mechanism (not shown in the figure, a conventional mechanical structure). When the sealing ring is placed on the support and the clamping blocks 4 are closed, the sealing ring is firmly clamped and compressed into a U-shape.

[0045] The slide is used to guide the movement of the flexible conveyor belt 6 and / or the traction rope 11.

[0046] The method of using the installation tool in this embodiment: 1. Pre-deformation and clamping (e.g.) Figure 2 (As shown) Place the O-ring on the O-ring support 7.

[0047] Push the rear clamping block 4 (movable clamping block) to move forward clamping block 4 and lock it in place through the locking mechanism, so that the sealing ring is firmly clamped in the fixed groove, forming a stable U-shape.

[0048] Ensure that the flexible conveyor belt 6 fits tightly against the lower surface of the U-shaped sealing ring.

[0049] 2. Positioning Insertion The operator holds the handle and inserts the front end of the tool (with a limit ring 10 and a clamped sealing ring) vertically into the inlet of the target instrument cylinder (such as the gunpowder chamber of a setting tool).

[0050] Slowly insert until the limiting ring 10 is engaged in the annular groove at the instrument tube inlet.

[0051] Confirm that the sealing ring fixing groove on the tool is precisely aligned with the target annular sealing groove inside the instrument cylinder.

[0052] 3. Traction Release and Reset The operator pulls the traction rope 11 from the handle position.

[0053] The traction rope 11 transmits the tension to the flexible conveyor belt 6 through the pulley 5.

[0054] Under tension, the flexible conveyor belt 6 is pulled upward along the slide and gradually detaches from the contact surface with the U-shaped sealing ring.

[0055] 4. Fitting complete (e.g.) Figure 3 (As shown) As the flexible conveyor belt 6 detaches, the sealing ring loses its bottom constraint and begins to expand and return to its original circular state under the action of its own elastic restoring force.

[0056] During the resetting process (when approximately 80% of the circle is complete), the outer edge of the sealing ring is embedded in the target annular sealing groove of the instrument cylinder.

[0057] Ultimately, the sealing ring fully recovers its circular shape and sits tightly and without twisting completely within the target sealing groove.

[0058] 5. Tool Exit Rotate the handle slightly (90°-180°) to ensure that the sealing ring is evenly stressed circumferentially within the groove.

[0059] After confirming that the installation is correct, pull the installation tool out vertically.

[0060] The flexible conveyor belt 6 and clamping block 4 will not scrape against the installed sealing ring during the withdrawal process.

[0061] Advantages of this utility model: High efficiency: Mechanized operation significantly reduces the installation time of a single sealing ring from more than 10 minutes (for example, as short as tens of seconds), thus significantly improving the construction progress.

[0062] High reliability: Mechanical positioning ensures precise alignment of the sealing ring with the target groove; flexible conveyor belt guides release, avoiding twisting damage caused by manual operation; defect rate can be reduced to below 0.2%.

[0063] Easy to operate and reduces labor intensity: Tool-based operation replaces difficult manual work, significantly reducing the labor intensity of workers.

[0064] Deep cavity adaptability: The pre-deformation design allows the large cross-section sealing ring to pass smoothly through the narrow instrument tube inlet, increasing the cross-sectional area utilization rate by more than 60%.

[0065] Durability: Key components (such as flexible conveyor belts) are designed for long lifespan (≥5000 cycles), and tools are reusable.

[0066] The above embodiments are merely one of the implementation methods for achieving the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions, and other implementation methods that are easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sealing ring installation tool, characterized in that, The device includes a fixing mechanism, a driving mechanism, and a handheld lever (12). The fixing mechanism includes a mounting plate (9) and a C-shaped elastic piece and a pair of clamping blocks (4) disposed thereon. The outer sides of the pair of clamping blocks (4) are in an arc shape, and there is a gap (8) between the inner sides of the pair of clamping blocks (4). The C-shaped elastic piece is disposed in the gap (8). The driving mechanism includes a pair of pulleys (5), a flexible conveyor belt (6), and a traction rope (11). Each pulley (5) is disposed on one side of the corresponding clamping block (4). The pulley (5) is connected to the flexible conveyor belt (6) in a rolling manner. The two ends of the flexible conveyor belt (6) pass through two holes on the side of the mounting plate (9) away from the pulley (5) and are both connected to the traction rope (11). The handheld lever (12) is fixedly connected to the mounting plate (9).

2. The sealing ring installation tool according to claim 1, characterized in that, It also includes a sealing ring support (7); the mounting plate (9) is provided with a slide rail at the corresponding gap (8) position, and a slider is slidably connected on the slide rail, and the slider is fixedly connected to the sealing ring support (7).

3. A sealing ring installation tool according to claim 2, characterized in that, The outer surface of the sealing ring support (7) is a smooth surface.

4. A sealing ring installation tool according to claim 2, characterized in that, The sealing ring support (7) has a groove on one side edge that can hook the sealing ring.

5. A sealing ring installation tool according to claim 1, characterized in that, The clamping blocks (4) are all branched.

6. A sealing ring installation tool according to claim 5, characterized in that, Holes are provided on the mounting plate (9) at the branch points corresponding to the branch-shaped clamping block (4).

7. A sealing ring installation tool according to claim 1, characterized in that, One of the two clamping blocks (4) is fixed to the mounting plate (9), and the other is movably connected to the mounting plate (9).

8. A sealing ring installation tool according to claim 7, characterized in that, The active connection is a sliding connection along the plane of the mounting plate (9).

9. A sealing ring installation tool according to claim 1, characterized in that, The axis of the pulley (5) is perpendicular to the mounting plate (9).

10. A sealing ring installation tool according to claim 1, characterized in that, At least one end of the C-shaped elastic sheet is fixedly connected to the mounting plate (9).

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