An oil sight glass disassembly tool

Abstract

This application discloses a tooling for disassembling an oil sight glass. Two fixing rods are fixed inside a mounting base, and two notches are formed on the periphery of the mounting base, with the fixing rods located within these notches. A rotating rod is rotatably connected to the mounting base, and two grippers are rotatably connected to their corresponding fixing rods. The inner ends of the two grippers are rotatably connected to the rotating rod, while their outer ends extend away from the mounting base. One end of each of two positioning pins is fixedly connected to the outer end of the corresponding gripper, and the other end extends vertically and is fixedly connected to the positioning hole of the oil sight glass. This application uses the rotating rod to drive the two grippers to rotate synchronously in opposite directions around the fixing rods. The outer ends of the grippers engage with the positioning holes of the oil sight glass via positioning pins. The positioning pins are inserted into pre-drilled holes on the edge of the oil sight glass to prevent horizontal displacement during disassembly. Furthermore, the interference fit between the positioning pins and the positioning holes directly applies the rotational torque to the oil sight glass, avoiding slippage caused by direct clamping, improving the disassembly efficiency of the oil sight glass, and preventing scratches on the oil sight glass.

Description

Technical Field

[0001] This application relates to the field of oil sight glass auxiliary tools, and in particular to an oil sight glass disassembly fixture. Background Technology

[0002] In petrochemical equipment, the oil sight glass is a key component for monitoring the oil level in the lubrication system. After long-term operation, it is prone to aging and contamination and needs to be replaced.

[0003] Current technology uses snap ring pliers for disassembly; however, because oil sight glasses are mostly located at the bottom of the equipment, surrounded by oil lines and with limited operating space, snap ring pliers cannot effectively apply force. The tips of snap ring pliers are prone to slipping, and because traditional snap ring pliers cannot cover oil sight glasses of different sizes, frequent tool changes are required, resulting in low efficiency.

[0004] Therefore, there is an urgent need for an oil level sight disassembly tool to solve the above problems. Utility Model Content

[0005] This application provides an oil sight glass disassembly fixture, which aims to facilitate the disassembly of the oil sight glass body while improving disassembly efficiency.

[0006] To achieve the above objectives, this application provides the following technical solutions:

[0007] An oil sight glass disassembly fixture includes a mounting base, a rotating rod, two grippers, and two locating pins;

[0008] The mounting base of the box-shaped structure has two fixed rods fixedly installed inside, and two notches are opened on the periphery of the mounting base. The two fixed rods are located within the curved contour of the two notches.

[0009] One end of the rotating rod passes through the top of the mounting base and is rotatably connected to the mounting base, while the other end extends away from the mounting base.

[0010] The inner ends of the two grippers are rotatably connected to the corresponding fixed rods, and the circumferential surfaces of the inner ends of the two grippers are rotatably connected to one end of the rotating rod located inside the mounting base. Their outer ends extend away from the mounting base and can move closer to or further away from each other.

[0011] One end of each of the two positioning pins is fixedly connected to the outer end of the corresponding gripper on a side away from the top of the mounting base, and the other end extends vertically and is fixedly connected to the positioning hole of the oil sight glass.

[0012] Furthermore, a first locking tooth is fixedly provided on the inner circumferential surface of both grippers, and a second locking tooth is fixedly provided on the circumferential surface of one end of the rotating rod located on the mounting base, wherein the first locking tooth and the second locking tooth mesh with each other.

[0013] Furthermore, the two grippers are integrally curved, with their steep sides facing the interior of the mounting base and abutting against the edge of the corresponding notch, and their gentle sides facing the exterior of the mounting base.

[0014] Furthermore, an elastic element is provided between the two grippers, and the two ends of the elastic element are fixedly connected to the highest point of curvature of the steep surface of the corresponding gripper.

[0015] Furthermore, a handle is fixedly connected to the end of the rotating rod away from the mounting base in its radial direction, and the circumferential surface of the handle abuts against the end of the fixing sleeve away from the mounting base.

[0016] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages:

[0017] This application uses a rotating rod to drive two grippers to rotate synchronously in opposite directions around a fixed rod, allowing the outer ends to move closer or further away. The outer ends of the grippers engage with the positioning holes of the sight glass via positioning pins. The positioning pins are vertically extended and inserted into pre-drilled holes on the edge of the sight glass to prevent horizontal displacement of the sight glass during disassembly. Simultaneously, the interference fit between the positioning pins and the positioning holes directly applies the rotational torque to the sight glass, avoiding slippage caused by direct clamping, improving the disassembly efficiency of the sight glass, and preventing scratches on the sight glass. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the assembled state provided in the embodiments of this application;

[0020] Figure 2 This is a structural schematic diagram in a rear view provided in an embodiment of this application;

[0021] Figure 3 for Figure 2 Sectional view of AA.

[0022] Icons: 10-Mounting base; 101-Notch; 11-Rotating rod; 111-First locking tooth; 12-Gripper; 121-Second locking tooth; 13-Positioning pin; 14-Fixing rod; 15-Elastic element; 16-Fixing sleeve; 17-Handle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0025] Combination Figures 1-3 As shown, an oil sight glass disassembly fixture includes a mounting base 10, a rotating rod 11, two grippers 12, and two positioning pins 13. The box-shaped mounting base 10 has two fixed rods 14 fixedly installed inside. Two notches 101 are formed on the periphery of the mounting base 10, and the two fixed rods 14 are located within the curved contours of the two notches 101. One end of the rotating rod 11 passes through the top of the mounting base 10 and is rotatably connected to it, while the other end extends away from the mounting base 10. The inner ends of the two grippers 12 are rotatably connected to the corresponding fixed rods 14, and the circumferential surfaces of the inner ends of the two grippers 12 are rotatably connected to the end of the rotating rod 11 located inside the mounting base 10. Their outer ends extend away from the mounting base 10, allowing them to move closer or further apart. One end of each positioning pin 13 is fixedly connected to the outer end of the corresponding gripper 12 on a side away from the top of the mounting base 10, while the other end extends vertically and is fixedly connected to the positioning hole of the oil sight glass.

[0026] In the above scheme, the mounting base 10 serves as the basic support, and its box-shaped structure provides a rigid frame. The two notches 101 provide swing space for the grippers 12. The fixing rod 14 is fixed inside the mounting base 10, serving as the rotation axis of the grippers 12 to ensure the stability of the movement trajectory of the grippers 12. When the rotating rod 11 is rotated, the rotating rod 11 drives the two grippers 12 to rotate synchronously in opposite directions around the fixing rod 14, allowing the outer ends to move closer or further away. The outer ends of the grippers 12 engage with the positioning holes of the sight glass via positioning pins 13. The positioning pins 13 adopt a vertically extending design and are inserted into the pre-set holes on the edge of the sight glass to prevent the sight glass from shifting horizontally during disassembly. At the same time, the interference fit between the positioning pins 13 and the positioning holes directly applies the rotational torque to the sight glass, avoiding slippage caused by direct clamping, improving the disassembly efficiency of the sight glass, and preventing scratches on the sight glass.

[0027] The inner circumferential surfaces of the two grippers 12 are each fixedly provided with a first locking tooth 111, and the circumferential surface of the rotating rod 11 located at one end of the mounting base 10 is fixedly provided with a second locking tooth 121, and the first locking tooth 111 and the second locking tooth 121 mesh with each other.

[0028] In the above scheme, the first locking tooth 111 is fixed to the inner circumferential surface of the two grippers 12, arranged in a fan shape. The second locking tooth 121 surrounds the circumferential surface of the rotating rod 11 located inside the mounting base 10, forming a cylindrical gear structure, the module of which matches that of the first locking tooth 111. The operator rotates the end of the rotating rod 11 away from the mounting base 10, causing the second locking tooth 121 to rotate synchronously. The tooth groove of the second locking tooth 121 pushes the first locking tooth 111, causing the two grippers 12 to swing synchronously in opposite directions around the fixed rod 14, bringing the outer ends of the two grippers 12 closer together, and causing the positioning pin 13 to be inserted into the positioning hole of the oil sight glass. During this process, the operator can judge the state of the grippers 12 by touching the rotational resistance of the rotating rod 11, without visual confirmation, simplifying the disassembly of the oil sight glass.

[0029] The two grippers 12 are curved in shape, with their steep sides facing the interior of the mounting base 10 and abutting against the edge of the corresponding notch 101, and their gentle sides facing the outside of the mounting base 10.

[0030] In the above scheme, the notch 101 edge of the mounting base 10 serves as a fixed guide rail. When the rotating rod 11 drives the gripper 12 to swing, the abutment relationship between the steep surface of the gripper 12 and the edge converts the rotational motion into a directional opening and closing motion, preventing the gripper 12 from axially shifting or twisting. The radius of curvature of the gripper 12 is consistent with the arc of the notch 101, ensuring that a single-point linear contact is maintained throughout the swinging process, reducing frictional resistance. The gentle surface of the gripper 12 adopts a gradually changing curvature design, so that the clamping force is evenly distributed on the edge of the oil sight glass, avoiding stress concentration that could lead to glass breakage.

[0031] An elastic element 15 is provided between the two grippers 12, and the two ends of the elastic element 15 are fixedly connected to the highest point of curvature of the steep surface of the corresponding gripper 12.

[0032] In the above scheme, the connection at the highest point of curvature ensures that the direction of the elastic force is perpendicular to the swing plane of the gripper 12, avoiding jamming caused by lateral force. Furthermore, the elastic element 15 is in its natural length or slightly compressed state, applying a symmetrical outward pushing force to the two grippers 12, allowing the grippers 12 to automatically maintain their maximum opening angle. When the rotating rod 11 rotates, the tooth transmission provides an active closing force, while the elastic element 15 is stretched and stores energy. When the positioning pin 13 contacts the positioning hole of the oil sight glass, the reaction force of the elastic element 15 causes the grippers 12 to close with faster acceleration, while simultaneously ensuring stable contact between the positioning pin 13 and the oil sight glass, shortening the operation time.

[0033] A handle 17 is fixedly connected to the end of the rotating rod 11 away from the mounting base 10 in its radial direction. The axial length of the handle 17 is consistent with the axis of symmetry of the two fixed rods 14, and the circumferential surface of the handle 17 abuts against the end of the fixed sleeve 16 away from the mounting base 10.

[0034] In the above scheme, the handle 17 is axially aligned with the axis of symmetry of the fixed rod 14, ensuring that the direction of the operating force is perpendicular to the gear transmission plane, so that the operating force is always within the plane of the gear transmission. Since the axial length of the handle 17 is consistent with the radial direction of the rotating rod 11, the operating radius of the disassembly fixture in narrow spaces (such as the side of the equipment) can be reduced.

[0035] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.

[0036] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this application.

Claims

1. An oil sight glass dismounting tool, characterized by, It includes a mounting base (10), a rotating rod (11), two grippers (12) and two locating pins (13); The mounting base (10) of the box-shaped structure is fixedly provided with two fixing rods (14). The mounting base (10) has two notches (101) on its periphery. The two fixing rods (14) are located within the curved contour of the two notches (101). One end of the rotating rod (11) passes through the top of the mounting base (10) and is rotatably connected to the mounting base (10), while the other end extends away from the mounting base (10). The inner ends of the two grippers (12) are rotatably connected to the corresponding fixed rod (14), and the inner circumferential surfaces of the two grippers (12) are rotatably engaged with one end of the rotating rod (11) located inside the mounting base (10), and their outer ends extend away from the mounting base (10), so that they can move closer to or further away from each other. One end of each of the two positioning pins (13) is fixedly connected to the outer end of the corresponding gripper (12) away from the top side of the mounting base (10), and the other end extends vertically and is fixedly connected to the positioning hole of the oil sight glass.

2. The oil sight glass dismounting tool according to claim 1, characterized in that, The inner circumferential surfaces of the two grippers (12) are each fixedly provided with a first locking tooth (111), and the rotating rod (11) is fixedly provided with a second locking tooth (121) on one end circumferential surface of the mounting base (10). The first locking tooth (111) and the second locking tooth (121) mesh with each other.

3. The oil sight glass dismounting tool according to claim 2, characterized in that The two grippers (12) are curved in shape, with their steep sides facing the interior of the mounting base (10) and abutting against the edge of the corresponding notch (101), and their gentle sides facing the outside of the mounting base (10).

4. The oil sight glass dismounting tool according to claim 1, characterized in that, An elastic element (15) is provided between the two grippers (12), and the two ends of the elastic element (15) are fixedly connected to the highest point of curvature of the steep surface of the corresponding gripper (12).

5. The oil sight glass dismounting tool according to claim 1, characterized in that, The rotating rod (11) is fitted with a fixing sleeve (16) around its periphery. One end of the fixing sleeve (16) is fixedly connected to the top of the mounting base (10), and the other end extends vertically to one side of the mounting base (10).

6. The oil sight glass disassembly fixture according to claim 5, characterized in that, The rotating rod (11) is fixedly connected to a handle (17) in the radial direction at one end away from the mounting base (10), and the circumferential surface of the handle (17) abuts against the end of the fixing sleeve (16) away from the mounting base (10).

Images