A sealing mechanism for the left side of an oil passage

Abstract

This utility model relates to the technical field of sealing mechanisms and discloses a sealing mechanism for the left side of an oil passage, including a mounting plate, a sealing plate on one side of the mounting plate, a conical platform on the sealing plate, a rubber sleeve fixedly fitted on the outer wall of the conical platform, a connecting rod fixedly connected between the side wall of the mounting plate and the side wall of the sealing plate, a clamping assembly between the mounting plate and the sealing plate, the clamping assembly pressing against the inner wall of the oil passage, and a buffer assembly between the sealing plate and the conical platform to buffer the impact force received by the conical platform. The buffer assembly, consisting of a rubber plate, a fixed cover, a fixed rod, a movable block, an arc-shaped spring, and a second connecting rod, can absorb the impact force when the conical platform is impacted by the deformation of the arc-shaped spring. Compared with devices in the prior art that do not have an effective buffer structure, this greatly improves the sealing mechanism's ability to resist liquid pressure impacts and reduces sealing failures caused by impacts.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing mechanisms, specifically a sealing mechanism for the left side of an oil passage. Background Technology

[0002] The oil passage left-side sealing mechanism is a special device used in mechanical systems to seal the left side of the oil passage. Its main function is to prevent the leakage or outflow of lubricating oil and other liquids in the oil passage, ensuring the safe operation of the equipment and the smooth progress of maintenance work.

[0003] Application No. 202322482162.0 discloses a leak-sealing device for underground pipe jacking construction. The device involves inserting a sealing disc and a positioning block into the pipe jacking section, positioning the sealing disc at the front end of the pipe. The sealing cover is then removed, and the sealing valve is opened. Air is inflated from the fixed external threaded tube port, filling the sealing airbag. At this point, the wear-resistant soft rubber ring is tightly fitted to the gap at the pipe jacking port. The positioning block is then pulled outwards, and by rotating the rotating disc, the end of the L-shaped pin shaft is inserted into the slot for fixation. The first fixing ring is then rotated clockwise, causing the bottom end of the diagonal brace to extend outwards and abut against the inner wall of the pipe jacking section, thus preventing the sealing disc from tilting. This ensures the sealing disc is fixed at the front end of the pipe jacking section for sealing and waterproofing, facilitating assembly and disassembly, and providing a significant sealing effect.

[0004] When the above-mentioned device is in use, the sealing structure is unable to effectively resist the pressure impact of the liquid in the oil passage and is very prone to detachment. Once the sealing structure detaches, it will not only cause a large amount of lubricating oil to leak, pollute the working environment and increase maintenance costs, but may also make maintenance operations difficult to carry out due to oil loss, thus prolonging the maintenance cycle. Therefore, we propose a sealing mechanism for the left side of the oil passage. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a left-side sealing mechanism for oil passages, which solves the aforementioned problems.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a left-side sealing mechanism for an oil passage, comprising an installation plate, a sealing plate on one side of the installation plate, a conical platform on the sealing plate, a rubber sleeve fixedly fitted on the outer wall of the conical platform, a connecting rod fixedly connected between the side wall of the installation plate and the side wall of the sealing plate, a clamping assembly between the installation plate and the sealing plate, the clamping assembly pressing against the inner wall of the oil passage, and a buffer assembly between the sealing plate and the conical platform, the buffer assembly buffering the impact force received by the conical platform.

[0007] Preferably, a motor is fixedly connected to the side wall of the mounting plate, a threaded rod is fixedly connected to the output end of the motor, the threaded rod is rotatably connected between the mounting plate and the sealing plate, and a positioning rod is fixedly connected between the mounting plate and the sealing plate.

[0008] Preferably, the clamping assembly includes a slider, a first movable rod, and a moving block. The slider is threaded onto the outer wall of the threaded rod. Two sets of sliders are symmetrically arranged at both ends of the threaded rod. The moving block is arranged on both outer sides of the threaded rod. The inner wall of the slider is slidably connected to the outer wall of the positioning rod. The first movable rod is movably hinged between the side wall of the moving block and the side wall of the slider. Four sets of the first movable rod are provided.

[0009] Preferably, a rubber cover is fixedly connected to the outer wall of the movable block.

[0010] Preferably, the buffer assembly includes a rubber disc, a fixed cover, a fixed rod, a movable block, an arc-shaped spring, and a second connecting rod. The rubber disc is fixedly connected between the side wall of the sealing disc and the side wall of the conical platform and is located inside the fixed cover. The fixed cover is fixedly connected to the side wall of the sealing disc. One end of the conical platform is located inside the fixed cover. The fixed rod is fixedly connected to the inner wall of the fixed cover. There are four sets of fixed rods arranged in a circumferential pattern. The movable block is slidably sleeved on the outer wall of the fixed rod. The end of the fixed rod away from the fixed cover is slidably connected to the inner wall of the conical platform. The second connecting rod is movably hinged between the side wall of the conical platform and the side wall of the movable block. The arc-shaped spring is fixedly sleeved on both ends of the movable block. Both ends of the arc-shaped spring are fixedly connected to the inner wall of the fixed cover.

[0011] Preferably, a tie rod is installed on the side wall of the mounting plate.

[0012] Compared with the prior art, this utility model provides a left-side sealing mechanism for an oil passage, which has the following beneficial effects:

[0013] 1. The left-side sealing mechanism of the oil passage, consisting of a rubber disc, a fixed cover, a fixed rod, a movable block, an arc-shaped spring, and a second connecting rod, forms a buffer assembly. When the conical platform is impacted, the deformation of the arc-shaped spring absorbs the impact force. Compared with devices in the prior art that do not have an effective buffer structure, this greatly improves the sealing mechanism's ability to resist liquid pressure impacts and reduces sealing failures caused by impacts.

[0014] 2. The sealing mechanism on the left side of the oil passage, through a clamping assembly consisting of a motor, threaded rod, slider, first movable rod and moving block, and in conjunction with a rubber cover, can flexibly adjust the degree of contact with the inner wall of the oil passage according to the inner diameter of the oil passage. Compared with the fixing method of the prior art that only relies on airbags and diagonal braces, the fixing is more secure and effectively prevents the sealing mechanism from falling out under the action of liquid pressure in the oil passage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 for Figure 2 A magnified view of part A in the diagram.

[0018] In the diagram: 1. Mounting plate; 2. Sealing plate; 3. Pull rod; 4. Motor; 5. Threaded rod; 6. Fixing block; 7. Positioning rod; 8. Moving block; 9. First movable rod; 10. Conical platform; 11. Rubber sleeve; 13. Rubber cover; 14. Rubber disc; 15. Fixing cover; 16. Fixing rod; 17. Movable block; 18. Arc-shaped spring; 19. Connecting rod; 20. Second connecting rod. Detailed Implementation

[0019] 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 embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 An oil passage left-side sealing mechanism includes a mounting plate 1, a sealing plate 2 on one side of the mounting plate 1, a conical platform 10 on the sealing plate 2, a rubber sleeve 11 fixedly fitted on the outer wall of the conical platform 10, a connecting rod 19 fixedly connected between the side wall of the mounting plate 1 and the side wall of the sealing plate 2, a clamping assembly between the mounting plate 1 and the sealing plate 2, which clamps against the inner wall of the oil passage, and a buffer assembly between the sealing plate 2 and the conical platform 10, which buffers the impact force received by the conical platform 10. The mounting plate 1 and the sealing plate 2 constitute the main frame of the device, and the connecting rod 19 ensures the stability of their relative positions. In use, the device is placed into the oil passage by a pull rod 3, the clamping assembly fixes the device to the inner wall of the oil passage, and the buffer assembly functions when the conical platform 10 is impacted by liquid. When liquid impacts the conical platform 10, the rubber sleeve 11 contacts the liquid first, the conical structure of the conical platform 10 relieves part of the pressure, and then the conical platform 10 squeezes the buffer assembly, thus buffering the impact force.

[0021] A motor 4 is fixedly connected to the side wall of the mounting plate 1. A threaded rod 5 is fixedly connected to the output end of the motor 4. The threaded rod 5 is rotatably connected between the mounting plate 1 and the sealing plate 2. A positioning rod 7 is fixedly connected between the mounting plate 1 and the sealing plate 2. When the motor 4 on the side wall of the mounting plate 1 is energized, the output end drives the threaded rod 5 to rotate. The threaded rod 5 rotates between the mounting plate 1 and the sealing plate 2. The positioning rod 7 restricts the movement direction of the slider 6, so that the slider 6 can only move along the positioning rod 7 on the threaded rod 5, providing power and guidance for the subsequent action of the clamping assembly.

[0022] The clamping assembly includes a slider 6, a first movable rod 9, and a moving block 8. The slider 6 is threaded onto the outer wall of the threaded rod 5. Two sets of sliders 6 are symmetrically arranged at both ends of the threaded rod 5. The moving blocks 8 are located on both outer sides of the threaded rod 5. The inner wall of the slider 6 is slidably connected to the outer wall of the positioning rod 7. The first movable rod 9 is movably hinged between the side wall of the moving block 8 and the side wall of the slider 6. Four sets of the first movable rod 9 are provided. When the threaded rod 5 rotates, the two sets of sliders 6 fitted onto its outer wall move closer to each other due to the threaded transmission and are limited by the positioning rod 7. The slider 6 moves through the four sets of first movable rods 9. Rod 9 transmits force to movable block 8, causing movable block 8 to unfold towards the inner wall of the oil passage, thereby driving rubber cover 13 to fit tightly against the inner wall of the oil passage, thus fixing the device in the oil passage; through the clamping assembly composed of motor 4, threaded rod 5, slider 6, first movable rod 9 and movable block 8, in conjunction with rubber cover 13, the degree of fit with the inner wall of the oil passage can be flexibly adjusted according to the inner diameter of the oil passage. Compared with the fixing method of the prior art that only relies on airbag and diagonal brace, the fixing is more secure and effectively prevents the sealing mechanism from falling out under the action of liquid pressure in the oil passage.

[0023] A rubber cover 13 is fixedly connected to the outer wall of the movable block 8. When the movable block 8 unfolds outward and contacts the inner wall of the oil passage under the action of the first movable rod 9, the rubber cover 13 fixedly connected to its outer wall tightly fits the irregular surface of the inner wall of the oil passage by its own elastic deformation, fills the gaps, enhances the sealing effect, and at the same time plays a certain buffering role, reducing the rigid contact between the movable block 8 and the inner wall of the oil passage.

[0024] The buffer assembly includes a rubber disc 14, a fixed cover 15, a fixed rod 16, a movable block 17, an arc-shaped spring piece 18, and a second connecting rod 20. The rubber disc 14 is fixedly connected between the side wall of the sealing disc 2 and the side wall of the conical platform 10 and is located inside the fixed cover 15. The fixed cover 15 is fixedly connected to the side wall of the sealing disc 2. One end of the conical platform 10 is located inside the fixed cover 15. The fixed rod 16 is fixedly connected to the inner wall of the fixed cover 15. The fixed rod 16 has four sets and is circumferentially distributed. The movable block 17 is slidably sleeved on the outer wall of the fixed rod 16. The end of the fixed rod 16 away from the fixed cover 15 is slidably connected to the inner wall of the conical platform 10. The second connecting rod 20 is movably hinged between the side wall of the conical platform 10 and the side wall of the movable block 17. The arc-shaped spring piece 18 is fixedly sleeved on both ends of the movable block 17, and both ends of the arc-shaped spring piece 18 are fixedly connected to the inner wall of the fixed cover 15. When the conical platform 10 is subjected to... Upon impact with liquid, the rubber disc 14 initially acts as a buffer. Then, the conical platform 10 pushes the movable block 17 to slide along the fixed rod 16. The arc-shaped spring 18 undergoes elastic deformation under the movement of the movable block 17, converting the impact force into elastic potential energy for storage. After the impact, the arc-shaped spring 18 returns to its original shape, pushing the movable block 17 and the conical platform 10 to reset. The second connecting rod 20 assists in transmitting force and maintaining structural stability during the process. The buffer assembly consisting of the rubber disc 14, fixed cover 15, fixed rod 16, movable block 17, arc-shaped spring 18, and second connecting rod 20 can absorb the impact force by utilizing the deformation of the arc-shaped spring 18 when the conical platform 10 is impacted. Compared with devices in the prior art that do not have an effective buffer structure, this greatly improves the sealing mechanism's ability to resist liquid pressure impacts and reduces sealing failures caused by impacts.

[0025] Preferably, a pull rod 3 is installed on the side wall of the mounting plate 1; when the device is placed into or removed from the oil passage, the operator holds the pull rod 3 and applies external force through the pull rod 3 to conveniently control the movement of the device in the oil passage, thereby realizing the installation and disassembly of the device.

[0026] Structural Description: Mounting Plate 1: As the basic load-bearing component of the entire device, it is usually made of high-strength metal material, with good mechanical strength and stability. One side is set opposite to the sealing plate 2, and the other side can be used to install other components such as motor 4, providing a reference surface for the installation and fixing of the device. At the same time, the tie rod 3 installed on the side wall facilitates the operation and movement of the device by the staff.

[0027] Sealing disc 2: Together with mounting disc 1, it forms the main body of the device and is mainly used to seal oil passages. Its surface is provided with a conical platform 10, which plays a key sealing role in the oil passage sealing process. The sealing disc 2 and mounting disc 1 are fixedly connected by a connecting rod 19 to ensure the stability of their relative positions. At the same time, a buffer assembly is provided between the sealing disc 2 and the conical platform 10 to cope with liquid impact.

[0028] Pull rod 3: Generally made of sturdy and easy-to-grip materials, such as metal or high-strength engineering plastics, it is fixedly installed on the side wall of the mounting plate 1. Its main function is to provide the operator with a point of leverage, making it easy to put the device into or take it out of the oil passage, which greatly improves the convenience of device installation and disassembly.

[0029] Motor 4: Installed on the side wall of mounting plate 1, it is the power source for the automatic fixing of the device. After being powered on, it outputs rotational power, which drives the threaded rod 5 to rotate, thereby driving the clamping component to move, so that the device can be automatically fixed to the inner wall of the oil passage. Compared with manual operation, it is more efficient and precise.

[0030] Threaded rod 5: Rotatably connected between mounting plate 1 and sealing plate 2, and fixedly connected to the output end of motor 4. Driven by motor 4, it rotates, using the threaded transmission principle to drive the slider 6 sleeved on its outer wall to move along positioning rod 7, thereby realizing the action of the clamping assembly. It is a key component for power transmission of the device.

[0031] Slider 6: Threaded onto the outer wall of threaded rod 5, with two sets symmetrically distributed at both ends of threaded rod 5. The inner wall is slidably connected to the outer wall of positioning rod 7. When threaded rod 5 rotates, it achieves linear motion towards or away from each other due to threaded transmission and the limiting effect of positioning rod 7, providing power transmission for the first movable rod 9 and moving block 8.

[0032] Positioning rod 7: It is fixedly connected between the mounting plate 1 and the sealing plate 2. Its main function is to guide and limit the movement of the slider 6, ensuring that the slider 6 can only move along its axial direction when the threaded rod 5 rotates, preventing the slider 6 from rotating or deviating, and ensuring the stability and accuracy of the clamping assembly's operation.

[0033] Movable block 8: Located on both sides of the threaded rod 5, and movably hinged to the slider 6 via the first movable rod 9. When the slider 6 moves, it is pushed by the first movable rod 9 and unfolds towards the inner wall of the oil passage. The rubber cover 13 fixedly connected to its outer wall fits tightly against the inner wall of the oil passage, thus fixing the device in the oil passage.

[0034] The first movable rod 9 consists of four sets, each movably hinged between the side wall of the movable block 8 and the side wall of the slider 6. Its function is to convert the linear motion of the slider 6 into the outward unfolding motion of the movable block 8, thereby realizing the automatic clamping function of the device through the transmission principle of the linkage mechanism.

[0035] Conical platform 10: It is fixedly installed on the sealing plate 2, and its outer wall is fixedly fitted with a rubber sleeve 11. The conical structure design allows it to offset part of the pressure when it is impacted by liquid in the oil passage by the principle of inclined plane. At the same time, it works with the rubber sleeve 11 to achieve a good sealing effect. It is the core component of the device to resist liquid impact and seal.

[0036] Rubber sleeve 11: Tightly fitted on the outer wall of the conical platform 10, utilizing the good elasticity and sealing properties of rubber material to enhance the fit between the conical platform 10 and the inner wall of the oil passage, preventing liquid leakage, and at the same time playing a certain buffering role when subjected to impact.

[0037] Rubber cover 13: It is fixedly connected to the outer wall of the movable block 8 and is made of elastic rubber material. When the movable block 8 unfolds outward and contacts the inner wall of the oil passage, it can tightly fit the irregular surface of the inner wall of the oil passage through its own elastic deformation, fill the gaps, enhance the sealing effect between the device and the inner wall of the oil passage, and reduce rigid contact.

[0038] Rubber disc 14: It is fixedly connected between the side wall of the sealing disc 2 and the side wall of the conical platform 10, and is located inside the fixed cover 15. When the conical platform 10 is impacted by liquid, it first plays a preliminary buffering role, absorbing part of the impact force and protecting the subsequent buffer components.

[0039] Fixed cover 15: Fixedly connected to the side wall of the sealing disk 2, used to accommodate and protect other components of the buffer assembly, provide space for the installation and movement of movable block 17, fixed rod 16, etc., and at the same time ensure the stability of the buffer assembly structure.

[0040] Fixed rod 16: Fixedly connected to the inner wall of the fixed cover 15, there are four sets and they are distributed in a circle. One end is slidably connected to the inner wall of the conical platform 10, and the other end is slidably fitted onto the movable block 17. It plays a guiding and supporting role in the buffering process, ensuring the movement trajectory and stability of the movable block 17.

[0041] Movable block 17: It is slidably sleeved on the outer wall of fixed rod 16. When the conical platform 10 is impacted, it is pushed by the conical platform 10 to slide along fixed rod 16, thereby causing the arc-shaped spring piece 18 to undergo elastic deformation, thus absorbing and buffering the impact force.

[0042] Arc-shaped spring 18: It is fixedly sleeved at both ends of the movable block 17 and fixedly connected to the inner wall of the fixed cover 15. Utilizing its own elastic properties, it deforms when the movable block 17 slides, converting the impact force into elastic potential energy for storage. When the impact ends, it returns to its original state, pushing the movable block 17 and the conical platform 10 to reset.

[0043] Connecting rod 19: It is fixedly connected between the side wall of the mounting plate 1 and the side wall of the sealing plate 2, and plays a connecting and supporting role, ensuring the relative position stability between the mounting plate 1 and the sealing plate 2, and providing rigid support for the overall structure of the device.

[0044] The second connecting rod 20 is movably hinged between the side wall of the conical platform 10 and the side wall of the movable block 17. During the buffering process, it assists in transmitting force, ensuring smooth force transmission between the conical platform 10 and the movable block 17, while maintaining the stability of the buffer assembly structure.

[0045] Instructions for use

[0046] The operator uses the pull rod 3 to lower the entire device into the oil passage, positioning it correctly. The motor 4 is then started, and its output drives the threaded rod 5 to rotate. Due to the limiting effect of the positioning rod 7, the two sliders 6, fitted onto the outer wall of the threaded rod 5, move closer together along the positioning rod 7. The movement of the sliders 6, via four sets of first movable rods 9, causes the moving blocks 8, located on both outer sides of the threaded rod 5, to unfold outwards. The rubber cover 13 fixedly connected to the moving block 8 then comes into close contact with the inner wall of the oil passage, thus firmly fixing the device within the oil passage. When the liquid in the oil passage impacts the conical platform 10, the liquid... The body first contacts the rubber sleeve 11 fixedly fitted on the outer wall of the conical platform 10. The conical structure of the conical platform 10 can offset part of the pressure. As the pressure is transmitted, the conical platform 10 will move towards the mounting plate 1, pushing the movable block 17 to slide along the fixed rod 16. The arc-shaped spring pieces 18 fixedly fitted at both ends of the movable block 17 deform, converting the impact force into elastic potential energy, thereby buffering the impact force. The rubber plate 14 buffers the impact force. After the impact ends, the arc-shaped spring pieces 18 return to their original shape due to their own elasticity, pushing the movable block 17 and the conical platform 10 to reset and maintain the sealing state.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oil passage left side plugging mechanism comprising a mounting disc (1) provided with a plugging disc (2) on one side, characterized in that, Also includes: The sealing plate (2) is provided with a conical platform (10), and a rubber sleeve (11) is fixedly fitted on the outer wall of the conical platform (10). A connecting rod (19) is fixedly connected between the side wall of the mounting plate (1) and the side wall of the sealing plate (2). A clamping assembly is provided between the mounting plate (1) and the sealing plate (2), and the clamping assembly is pressed against the inner wall of the oil passage. A buffer assembly is provided between the sealing plate (2) and the conical platform (10), and the buffer assembly buffers the impact force received by the conical platform (10).

2. The left oil passage blocking mechanism according to claim 1, characterized by: A motor (4) is fixedly connected to the side wall of the mounting plate (1), and a threaded rod (5) is fixedly connected to the output end of the motor (4). The threaded rod (5) is rotatably connected between the mounting plate (1) and the sealing plate (2). A positioning rod (7) is fixedly connected between the mounting plate (1) and the sealing plate (2).

3. The left oil passage blocking mechanism according to claim 1, characterized by: The clamping assembly includes a slider (6), a first movable rod (9), and a moving block (8). The slider (6) is threaded onto the outer wall of the threaded rod (5). The slider (6) has two sets and is symmetrically arranged at both ends of the threaded rod (5). The moving block (8) is arranged on both outer sides of the threaded rod (5). The inner wall of the slider (6) is slidably connected to the outer wall of the positioning rod (7). The first movable rod (9) is movably hinged between the side wall of the moving block (8) and the side wall of the slider (6). The first movable rod (9) has four sets.

4. The left oil passage blocking mechanism according to claim 3, characterized by: A rubber cover (13) is fixedly connected to the outer wall of the movable block (8).

5. The left oil passage blocking mechanism according to claim 1, characterized by: The buffer assembly includes a rubber disc (14), a fixed cover (15), a fixed rod (16), a movable block (17), an arc-shaped spring piece (18), and a second connecting rod (20). The rubber disc (14) is fixedly connected between the side wall of the sealing disc (2) and the side wall of the conical platform (10) and is located inside the fixed cover (15). The fixed cover (15) is fixedly connected to the side wall of the sealing disc (2). One end of the conical platform (10) is located inside the fixed cover (15). The fixed rod (16) is fixedly connected to the fixed cover (15). The inner wall has four sets of fixed rods (16) arranged in a circular pattern. The movable block (17) is slidably sleeved on the outer wall of the fixed rod (16). The end of the fixed rod (16) away from the fixed cover (15) is slidably connected to the inner wall of the conical platform (10). The second connecting rod (20) is movably hinged between the side wall of the conical platform (10) and the side wall of the movable block (17). The arc-shaped spring piece (18) is fixedly sleeved on both ends of the movable block (17). The two ends of the arc-shaped spring piece (18) are fixedly connected to the inner wall of the fixed cover (15).

6. The left oil passage blocking mechanism according to claim 1, characterized by: A pull rod (3) is installed on the side wall of the mounting plate (1).

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