Environment-friendly oil tank sealing device

Abstract

The application relates to the technical field of oil tank sealing, in particular to an environment-friendly oil tank sealing device, which comprises a tank body assembly, a connecting pipe is arranged at the upper end of the tank body assembly, a fixing ring is fixed on the connecting pipe, a sealing cover assembly is hinged on one side of the fixing ring, the sealing cover assembly is located at the upper end of the fixing ring, the upper end of the connecting pipe is located in the sealing cover assembly, a linkage mechanism is arranged on the sealing cover assembly, a rotating plate is arranged on the linkage mechanism, an extrusion mechanism is arranged on the fixing ring, and the extrusion mechanism is connected with the rotating plate. The sealing cover assembly, the fixing ring, the sleeve piece and the connecting pipe can be quickly made to abut against the pressing plate and the ring piece through cooperation of corresponding components, the sealing components located in the middle can be effectively extruded, the leakage situation can be avoided, high-quality sealing can be realized through a multiple sealing scheme, and the components are connected ingeniously, so that workers can quickly operate to complete the sealing operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil tank sealing, in particular to an environmentally friendly oil tank sealing device. BACKGROUND

[0002] The existing oil tank filling port is usually sealed by a single upper cover, and the sealing performance of this sealing method is poor. Once the upper cover leaks, it may cause significant economic losses.

[0003] The existing Chinese patent with publication number CN217321752U discloses an environmentally friendly oil tank sealing device, which includes an oil tank body and a fixed cylinder. A first spherical sealing ring is fixedly sleeved on the lower end of the fixed cylinder. The upper end of the connecting seat is fixedly provided with a top ring that cooperates with the first spherical sealing ring. During the process of screwing the sealing cap onto the connecting seat by rotating, the fixed cylinder moves downward, and the first spherical sealing ring is gradually pressed against the top ring, and the first spherical sealing ring deforms to form a first layer of sealing. The lower side of the oil inlet cylinder is fixedly provided with a second spherical sealing ring. As the fixed cylinder continuously moves downward, the upper side of the rounded corner end on the fixed cylinder will press the second spherical sealing ring, and the second spherical sealing ring deforms to form a second layer of sealing. The present application has good sealing performance, effectively prevents oil leakage, and has good practical performance.

[0004] In the prior art, a double sealing structure is provided to ensure the sealing quality. During use, the corresponding components are pressed by rotating the threads. However, it is difficult to precisely control the screwing position, which makes it inconvenient to quickly install and disassemble the existing technology, and it is not conducive to quickly operating the sealing components during installation to seal. Therefore, improvements are needed. SUMMARY

[0005] The present application aims to solve the problems in the prior art and provides an environmentally friendly oil tank sealing device.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] An environmentally friendly oil tank sealing device includes a tank body assembly. A connecting pipe is provided at the upper end of the tank body assembly. A fixed ring is fixed on the connecting pipe. A sealing cover assembly is hingedly connected to one side of the fixed ring. The sealing cover assembly is located at the upper end of the fixed ring. The upper end of the connecting pipe is located in the sealing cover assembly. A linkage mechanism is provided on the sealing cover assembly. A rotating plate is provided on the linkage mechanism. An extrusion mechanism is provided on the fixed ring. The extrusion mechanism is connected to the rotating plate.

[0008] A sleeve is fixed to the top of the sealing cap assembly. A pressing mechanism is provided inside the sleeve. A pressure plate is provided on the pressing mechanism. A ring is fixed inside the connecting pipe. A sealing ring is fixed to the lower end of the pressure plate. The sealing ring and the ring abut against each other.

[0009] The linkage mechanism is equipped with a drive gear. Multiple synchronizing rods are rotatably sleeved at equal intervals on the circumference sidewall of the sleeve. A linkage gear is fixed at the upper end of the synchronizing rod, and the linkage gear meshes with the drive gear. An inclined plate assembly is fixed at the lower end of the synchronizing rod. Multiple notches are opened at equal intervals on the circumference sidewall of the connecting pipe, and the upper ends of the multiple inclined plate assemblies abut against the top of the multiple notches.

[0010] Compared with the prior art, this application can quickly make the sealing cap assembly and the fixing ring, the sleeve and the connecting pipe, and the pressure plate and the ring come into contact through the cooperation of the corresponding components. It can effectively squeeze the sealing component located in the middle to avoid leakage. High-quality sealing is achieved through multiple sealing schemes. Moreover, the connection between the components is ingenious, which makes it easy for the staff to quickly operate to complete the sealing operation.

[0011] Preferably, a sealing ring is fixed on the opposite side of the sealing cap assembly and the fixing ring, and an abutting sealing ring is fixed on the opposite side of the sleeve and the connecting pipe.

[0012] Furthermore, in actual production and manufacturing, the sealing ring, the contact sealing ring, and the mounting sealing ring all have a certain degree of flexibility, which can deform under compression, fully fill the gaps, ensure the sealing effect, and avoid leakage.

[0013] Preferably, the extrusion mechanism includes a flipping plate rotatably connected to one end of a fixed ring, a push rod fixed to the upper end of the flipping plate, an abutting roller rotatably sleeved on the horizontal end of the flipping plate, the abutting roller abutting against the upper end of a sealing cap assembly, the abutting roller abutting against the upper end of a rotating plate, an abutting plate fixed to one end of the sealing cap assembly, a screw screwed onto the horizontal end of the flipping plate, the screw screw being located above the abutting plate, a nut screwed onto the screw, and the nut being located between the horizontal end of the flipping plate and the abutting plate.

[0014] Furthermore, during the sealing operation, the operator can push the sealing cap assembly to make it contact with the fixing ring. After contact, the operator can push the flipping plate to rotate via the push rod. The movement of the flipping plate will cause the contact roller and the sealing cap assembly to contact. At the same time, during production, the contact position of the contact roller and the sealing cap assembly can be set to an arc shape to facilitate the movement of the contact roller, so as to squeeze the upper end of the sealing cap assembly and make it contact with the fixing ring, ensuring that the sealing cap assembly and the fixing ring effectively squeeze the sealing ring. At the same time, the operator can also rotate the screw to lower it to contact the contact plate, ensuring the contact effect between the sealing cap assembly and the fixing ring. The position of the screw can also be effectively fixed by the nut.

[0015] Preferably, the linkage mechanism includes a bearing groove formed on the sealing cover assembly, the rotating plate being rotatably connected in the bearing groove, an installation groove being formed on one side wall of the sealing cover assembly, the installation groove being located at the lower end of the bearing groove, a U-shaped plate being slidably sleeved on the top of the installation groove, one end of the U-shaped plate extending into the bearing groove, a pressing plate being fixed on the upper end of the U-shaped plate, the pressing plate being located at the lower end of the rotating plate, the other end of the U-shaped plate being located in the sealing cover assembly, an installation bracket being fixed on one side wall of the sealing cover assembly, a lead screw being rotatably sleeved in the installation bracket, the other end of the U-shaped plate being slidably sleeved on the installation bracket, a lead screw nut being fixed on the end of the U-shaped plate located in the sealing cover assembly, the lead screw nut being screwed onto the lead screw, a push-pull mechanism being provided on the lead screw, and the push-pull mechanism and the drive gear being connected to the pressing mechanism.

[0016] Furthermore, during use, when the flipping plate pushes the contact roller and the sealing cover assembly to abut, so that the contact roller and the bearing groove abut, the bearing groove can rotate so that the bearing groove and the sealing cover assembly are aligned. The bearing groove descends and abuts the extrusion plate, causing the U-shaped plate to descend. The U-shaped plate drives the screw nut assembly, causing the screw to rotate, so that the screw drives the push-pull mechanism to operate, and the pressing mechanism to operate.

[0017] Preferably, the push-pull mechanism includes a swing arm fixed to the upper end of the lead screw, one end of the swing arm is rotatably connected to a swing rod, one end of the swing rod is rotatably connected to a rack, the rack meshes with a drive gear, the rack is provided with a reciprocating mechanism, the upper end of the rack is rotatably connected to a linkage rod, and the linkage rod is connected to a pressing mechanism.

[0018] Furthermore, when the lead screw and nut assembly is raised or lowered, the lead screw will rotate in both directions. The upper end of the rocker arm rotates and is fitted onto the top of the sealing cover assembly. The lead screw will cause the rocker arm to rotate. The forward and reverse rotation of the rocker arm can push and pull the rack for reciprocating movement through the swing arm. When the rack reciprocates, it can cause the drive gear to rotate in both directions. When the drive gear rotates, power is transmitted, which facilitates further improvement of the connection sealing performance.

[0019] Preferably, the pressing mechanism includes a crossbar fixed inside the sleeve, a round tube slidably sleeved on the crossbar, a movable rod fixed at the lower end of the round tube, the movable rod slidably sleeved on the sleeve, one end of the movable rod extending out of the sleeve and rotatably connected to a linkage rod, a slanted push rod rotatably connected on the round tube, the lower end of the slanted push rod rotatably connected to the upper end of the pressure plate, and a lifting mechanism provided on the pressure plate, the lifting mechanism being connected to the sleeve.

[0020] Furthermore, in actual production, an arc-shaped plate can be fixed to one end of the moving rod extending from the sleeve, with the arc-shaped plate and the sleeve corresponding to each other. A rubber sealing gasket can also be fixed to the side of the arc-shaped plate and the sleeve that is close to each other. During use, the swing rod pushes the rack to move, which in turn causes the linkage rod to push the moving rod, allowing the arc-shaped plate and the sleeve to come into contact, effectively squeezing the rubber sealing gasket and ensuring a sealing effect. Simultaneously, the lifting mechanism ensures the stability of the pressure plate's lifting. When the moving rod moves, it can push the inclined push rod to rotate through the round tube, controlling the inclined push rod to move in a direction perpendicular to the crossbar or in the opposite direction. This controls the distance between the pressure plate and the ring component, allowing for the squeezing and installation of the sealing ring or causing the pressure plate to lift the sealing ring.

[0021] Preferably, the lifting mechanism includes a connecting ring fixed inside the sleeve, the inclined push rod is disposed through the connecting ring, and vertical rods are slidably sleeved on both sides of the connecting ring, with the lower ends of the two vertical rods respectively fixed to the upper ends of the pressure plate.

[0022] Furthermore, the vertical rod can control the pressure plate to rise and fall stably. That is, the inclined push rod can rotate in a direction perpendicular to the horizontal bar, and can also be controlled to rotate in a direction horizontal to the horizontal bar. When rotating in a direction perpendicular to the horizontal bar, the pressure plate can drive the installation sealing ring to descend so as to squeeze and seal with the ring component. When moving in the opposite direction, the installation sealing ring and the ring component can be separated.

[0023] Preferably, the reciprocating mechanism includes a slide rod slidably sleeved in a rack, with both ends of the slide rod fixed to opposite side walls within the sealing cover assembly, and a resistance spring sleeved on the slide rod, with both ends of the resistance spring fixed to the rack and the sealing cover assembly, respectively.

[0024] Furthermore, when external pressure is applied, the rack can compress the resistance spring, causing the resistance spring to shorten. When the external force disappears, the resistance spring can push the rack to reset, so that the rack can drive the drive gear and linkage rod to return to their original positions, thereby separating the inclined plate assembly and the inclined push rod, and separating the sealing ring and the circular ring, so that the sealing cover assembly and the fixing ring can be separated subsequently.

[0025] Preferably, the upper end of the contact plate has a hole, the depth of the hole is less than the height of the contact plate, and the diameter of the hole is greater than the diameter of the screw, with the lower end of the screw located inside the hole.

[0026] Furthermore, during actual production, a circular plate structure is rotatably connected to the bottom of the hole in the contact plate. At the same time, the operator can rotate the screw so that the lower end of the screw extends to the circular plate in the hole. When the screw and the circular plate come into contact, they can push the sealing cap assembly and the fixing ring to move relative to each other, so as to better compress the sealing ring and ensure the sealing effect.

[0027] Preferably, the annular component and the connecting pipe are integrally formed, the diameter of the pressure plate is smaller than the inner diameter of the connecting pipe, the diameter of the pressure plate is larger than the inner diameter of the annular component, the connecting pipe is provided with external threads, and the external threads on the connecting pipe are located at the upper end of the fixing ring.

[0028] Furthermore, this ensures the stability of the pressure plate's lifting and lowering.

[0029] The beneficial effects of this invention are:

[0030] 1. In actual use, the operator rotates the sealing cover assembly and the fixing ring to compress the sealing ring, which is the first layer of sealing. At the same time, the operator can rotate the flip plate by pushing the push rod so that the upper end of the contact roller and the sealing cover assembly comes into contact. This causes the contact roller to press the rotating plate so that the rotating plate is flush with the sealing cover assembly. When the contact roller presses the rotating plate, the components inside the sealing cover assembly can operate to fully complete the sealing connection between the internal components of the sealing cover assembly and the connecting pipe, ensuring a full sealing effect. At the same time, in conjunction with the sealing cover assembly, the fixing ring and the sealing ring, a triple seal is completed to prevent leakage and better protect the environment.

[0031] 2. After the contact roller and rotating plate have finished pressing, the screw can rotate, so that the lower end of the screw can be inserted into the contact plate. Through screwing, the screw descends, which pushes the sealing cover assembly down through the contact sealing ring. This allows the sealing cover assembly and the fixing ring to press the sealing ring, which can effectively seal the seal. Moreover, the lower end of the screw extends into the contact plate, which can ensure the stability of the position of the flipping plate, so as to better ensure the sealing effect of the sealing cover assembly, the fixing ring and the sealing ring.

[0032] 3. When the rotating plate rotates, it can squeeze the squeezing plate, causing the U-shaped plate to drive the lead screw nut to descend. When the lead screw nut descends, it can drive the swing arm to rotate, causing the swing arm to rotate in a direction perpendicular to the rack. When the swing arm rotates, it can push the rack to move through the swing rod. When the rack moves, it can push the moving rod to move through the linkage rod.

[0033] 4. When the rack moves, it can drive the drive gear to rotate the linkage gear. When the linkage gear rotates, it can drive the synchronizing rod to rotate, causing the slant plate assembly to rotate. In actual production, one end of the slant plate assembly is lower and the other end is higher, and the two ends are set in an arc shape to facilitate contact with the top inside the notch. This allows the sleeve and connecting pipe to better squeeze the sealing ring, ensuring a tight seal. This is the second layer of sealing.

[0034] 5. When the moving rod moves, it can push the pressure plate and the sealing ring down through the round tube, so that the sealing ring and the round ring can come into contact, thus achieving a third seal;

[0035] 6. Multiple sealing structures can effectively ensure the sealing effect, prevent leakage, and effectively protect the environment. At the same time, in actual production and preparation, the corresponding sealing rings can be fixed by adhesive, which is convenient for replacement and can better carry out sealing and environmental protection operations. Attached Figure Description

[0036] Figure 1 This is a front view of the present invention;

[0037] Figure 2 This is a structural diagram of the connecting tube and fixing ring of the present invention;

[0038] Figure 3 This is a diagram showing the internal structure of the sealing cap assembly of the present invention;

[0039] Figure 4 This is a schematic diagram of the connecting pipe and notch structure of the present invention;

[0040] Figure 5 This is a structural diagram of the flipping plate and the abutment roller of the present invention;

[0041] Figure 6 This is a structural diagram of the screw and contact plate of the present invention;

[0042] Figure 7 This is a structural diagram of the reciprocating mechanism of the present invention;

[0043] Figure 8 This is a diagram of the inclined plate assembly of the present invention;

[0044] In the diagram: 1. Tank assembly; 2. Connecting pipe; 3. Sealing cap assembly; 4. Fixing ring; 5. Sealing ring; 6. Sleeve fitting; 7. Linkage gear; 8. Contact sealing ring; 9. Mounting sealing ring; 10. Circular ring; 11. Angled push rod; 12. Circular tube; 13. Horizontal bar; 14. Moving rod; 15. Drive gear; 16. Mounting groove; 17. Bearing groove; 18. Mounting bracket; 19. Vertical rod; 20. Pressure plate; 21. 21. Connecting ring; 22. Notch; 23. Abutting roller; 24. Push rod; 25. Screw; 26. Flipping plate; 27. Nut; 28. Abutting plate; 29. ​​Linkage rod; 30. Slide rod; 31. Resistance spring; 32. Swing rod; 33. Lead screw; 34. Lead screw nut; 35. Extrusion plate; 36. U-shaped plate; 37. Synchronizing rod; 38. Inclined plate assembly; 39. Rotating plate; 40. Swing rod; 41. Straight rack. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] Reference Figures 1-8 An environmentally friendly oil tank sealing device includes a tank assembly 1. A connecting pipe 2 is provided through the upper end of the tank assembly 1, through which oil can be filled into the tank assembly 1 for convenient operation as needed. In actual production, the connecting pipe 2 is provided with a threaded structure for screw connection. A fixing ring 4 is fixed on the connecting pipe 2. A sealing cap assembly 3 is hinged to one side of the fixing ring 4. The sealing cap assembly 3 is located at the upper end of the fixing ring 4, and the upper end of the connecting pipe 2 is located inside the sealing cap assembly 3. Sealing rings 5 ​​are fixed on opposite sides of the sealing cap assembly 3 and the fixing ring 4. A sleeve fitting 6 is fixed on opposite sides of the connecting pipe 2 and abutting sealing rings 8. In actual use, the operator can push the sealing cap assembly 3 to make it abut against the fixing ring 4, that is, the abutting sealing ring 8 is clamped between the sealing cap assembly 3 and the fixing ring 4. The abutting sealing ring 8 can form a first sealing structure, effectively isolating and sealing.

[0047] Reference Figures 3-8The sealing cap assembly 3 is equipped with a linkage mechanism, which includes a rotating plate 39. The linkage mechanism includes a bearing groove 17 formed on the sealing cap assembly 3. The rotating plate 39 is rotatably connected within the bearing groove 17. An installation groove 16 is formed on one end sidewall of the sealing cap assembly 3, located at the lower end of the bearing groove 17. A U-shaped plate 36 is slidably fitted onto the top of the installation groove 16. One end of the U-shaped plate 36 extends into the bearing groove 17. A pressing plate 35 is fixed to the upper end of the U-shaped plate 36. 5 is located at the lower end of the rotating plate 39, and the other end of the U-shaped plate 36 is located inside the sealing cover assembly 3. A mounting bracket 18 is fixed on one side wall inside the sealing cover assembly 3. A lead screw 33 is rotatably sleeved inside the mounting bracket 18. The other end of the U-shaped plate 36 is slidably sleeved on the mounting bracket 18. A lead screw nut 34 is fixed at one end of the U-shaped plate 36 inside the sealing cover assembly 3. The lead screw nut 34 is screwed onto the lead screw 33. A push-pull mechanism is provided on the lead screw 33. The push-pull mechanism and the drive gear 15 are connected to the pressing mechanism.

[0048] Reference Figures 3-8 In use, when the flip plate 26 pushes the abutment roller 23 and the sealing cover assembly 3 to abut, so that the abutment roller 23 and the bearing groove 17 abut, the bearing groove 17 can rotate so that the bearing groove 17 and the sealing cover assembly 3 are aligned. When the bearing groove 17 descends, it can abut the extrusion plate 35, causing the U-shaped plate 36 to descend. The U-shaped plate 36 drives the lead screw nut 34, causing the lead screw 33 to rotate, so that the lead screw 33 drives the push-pull mechanism to operate, and the pressing mechanism to operate.

[0049] Reference Figures 3-7 The push-pull mechanism includes a rocker arm 32 fixed to the upper end of the lead screw 33. One end of the rocker arm 32 is rotatably connected to a swing rod 40, and one end of the swing rod 40 is rotatably connected to a rack 41. The rack 41 meshes with the drive gear 15. The rack 41 is equipped with a reciprocating mechanism, and the upper end of the rack 41 is rotatably connected to a linkage rod 29. The linkage rod 29 is connected to a pressing mechanism. When the lead screw nut 34 is raised or lowered, the lead screw 33 will rotate in both directions. The upper end of the rocker arm 32 is rotatably sleeved on the top of the sealing cover assembly 3. The lead screw 33 will drive the rocker arm 32 to rotate. The forward and reverse rotation of the rocker arm 32 can push and pull the rack 41 to reciprocate through the swing rod 40. When the rack 41 reciprocates, it can cause the drive gear 15 to rotate in both directions. When the drive gear 15 rotates, power is transmitted, which facilitates further improvement of the connection sealing performance.

[0050] Reference Figures 3-7The reciprocating mechanism includes a slide rod 30 slidably sleeved inside a rack 41. The two ends of the slide rod 30 are respectively fixed to opposite side walls inside the sealing cover assembly 3. A resistance spring 31 is sleeved on the slide rod 30. The two ends of the resistance spring 31 are respectively fixed to the rack 41 and the sealing cover assembly 3. When external pressure is applied, the rack 41 can squeeze the resistance spring 31, causing the resistance spring 31 to be compressed. When the external force disappears, the resistance spring 31 can push the rack 41 to reset, so that the rack 41 can drive the drive gear 15 and the linkage rod 29 to return to their original positions, so that the inclined plate assembly 38 and the inclined push rod 11 can be separated, and the sealing ring 9 and the ring part 10 can be separated, so that the sealing cover assembly 3 and the fixing ring 4 can be separated subsequently.

[0051] Reference Figures 3-7 The fixed ring 4 is equipped with a pressing mechanism, which is connected to the rotating plate 39. The pressing mechanism includes a flipping plate 26 rotatably connected to one end of the fixed ring 4. A push rod 24 is fixed to the upper end of the flipping plate 26. An abutting roller 23 is rotatably sleeved on the horizontal end of the flipping plate 26. The abutting roller 23 abuts against the upper end of the sealing cover assembly 3 and the upper end of the rotating plate 39. An abutting plate 28 is fixed to one end of the sealing cover assembly 3. A screw 25 is screwed onto the horizontal end of the flipping plate 26. The screw 25 is located above the abutting plate 28. A nut 27 is screwed onto the screw 25. The nut 27 is located between the horizontal end of the flipping plate 26 and the abutting plate 28. During the sealing operation, the operator can push the screw 26. The sealing cap assembly 3 abuts against the fixing ring 4. After abutting, the operator can push the flipping plate 26 to rotate via the push rod 24. The movement of the flipping plate 26 causes the contact roller 23 to abut against the sealing cap assembly 3. During production, the contact position of the contact roller 23 and the sealing cap assembly 3 can be set in an arc shape to facilitate the movement of the contact roller 23 to squeeze the upper end of the sealing cap assembly 3, making it abut against the fixing ring 4. This ensures that the sealing cap assembly 3 and the fixing ring 4 effectively squeeze the sealing ring 5. At the same time, the operator can also rotate the screw 25 to lower it to abut against the contact plate 28, further ensuring the contact effect between the sealing cap assembly 3 and the fixing ring 4. The position of the screw 25 can also be effectively fixed by the nut 27.

[0052] Reference Figures 3-7 The top of the sealing cap assembly 3 is fixed with a sleeve 6, and a pressing mechanism is provided inside the sleeve 6. A pressure plate 20 is provided on the pressing mechanism. A ring 10 is fixed inside the connecting pipe 2. A sealing ring 9 is fixed at the lower end of the pressure plate 20. The sealing ring 9 and the ring 10 abut against each other. The pressing mechanism can make the pressure plate 20 and the ring 10 squeeze the sealing ring 9, which can effectively ensure the sealing performance.

[0053] Reference Figures 3-7The pressing mechanism includes a crossbar 13 fixed inside the sleeve 6. A round tube 12 is slidably sleeved on the crossbar 13. A moving rod 14 is fixed to the lower end of the round tube 12. The moving rod 14 is slidably sleeved on the sleeve 6. One end of the moving rod 14 extending out of the sleeve 6 is rotatably connected to the linkage rod 29. An inclined push rod 11 is rotatably connected to the round tube 12. The lower end of the inclined push rod 11 is rotatably connected to the upper end of the pressure plate 20. The pressure plate 20 is equipped with a lifting mechanism, which is connected to the sleeve 6. In actual production, an arc-shaped plate can be fixed to the end of the moving rod 14 extending out of the sleeve 6, and the arc-shaped plate and the sleeve 6 are correspondingly arranged. At the same time, the arc-shaped plate and the sleeve 6 can be... A rubber sealing gasket is fixed on one side of the 6-axis. During use, the swing rod 40 pushes the rack 41 to move, which in turn causes the linkage rod 29 to push the moving rod 14 to move, so that the arc plate and the sleeve 6 can come into contact, effectively squeezing the rubber sealing gasket and ensuring the sealing effect. At the same time, the lifting mechanism fully ensures the stability of the lifting of the pressure plate 20. When the moving rod 14 moves, it can push the inclined push rod 11 to rotate through the round tube 12, which can control the inclined push rod 11 to move in a direction perpendicular to the cross bar 13 or move in the opposite direction. This can control the distance between the pressure plate 20 and the ring 10, so as to squeeze the installation sealing ring 9 or make the pressure plate 20 drive the installation sealing ring 9 to rise.

[0054] Reference Figures 3-7 The lifting mechanism includes a connecting ring 21 fixed inside the sleeve 6, and an inclined push rod 11 passing through the connecting ring 21. Vertical rods 19 are slidably sleeved on both sides of the connecting ring 21. The lower ends of the two vertical rods 19 are respectively fixed to the upper ends of the pressure plate 20. The vertical rods 19 can control the pressure plate 20 to lift stably. That is, the inclined push rod 11 can rotate in a direction perpendicular to the horizontal bar 13, and can also be controlled to rotate in a direction horizontal to the horizontal bar 13. When rotating in a direction perpendicular to the horizontal bar 13, the pressure plate 20 can drive the installation sealing ring 9 to descend so as to squeeze and seal with the ring 10. When moving in the opposite direction, the installation sealing ring 9 and the ring 10 can be separated.

[0055] Reference Figures 3-8The linkage mechanism is equipped with a drive gear 15. Multiple synchronizing rods 37 are rotatably sleeved at equal intervals on the circumference of the sleeve 6. The upper end of the synchronizing rod 37 is fixed with a linkage gear 7, which meshes with the drive gear 15. The lower end of the synchronizing rod 37 is fixed with a slant plate assembly 38. When the rack 41 moves, it can cause the drive gear 15 to drive the linkage gear 7 to rotate. When the linkage gear 7 rotates, it can drive the synchronizing rod 37 to rotate, causing the slant plate assembly 38 to rotate. Multiple notches 22 are opened at equal intervals on the circumference of the connecting pipe 2. The upper ends of the multiple slant plate assemblies 38 respectively abut against the top of the multiple notches 22. The other end of the slant plate assembly 38 is high and the two ends are arc-shaped, which facilitates abutment against the top of the notch 22. This allows the sleeve 6 and the connecting pipe 2 to better compress the sealing ring 8, ensuring a tight seal.

[0056] Reference Figure 3 , 6 The upper end of the contact plate 28 has a hole. The depth of the hole is less than the height of the contact plate 28, and the diameter of the hole is greater than the diameter of the screw 25. The lower end of the screw 25 is located in the hole. The operator can rotate the screw 25 so that the lower end of the screw 25 extends into the hole. The connecting disc structure rotates at the bottom of the hole to accommodate the rotation of the screw 25. At the same time, it can also ensure the stable descent of the screw 25 so as to push the sealing cover assembly 3 and the fixing ring 4 to tightly squeeze the sealing ring 5.

[0057] Reference Figure 3 The ring 10 and the connecting pipe 2 are integrally formed to ensure the connection is firm. The diameter of the pressure plate 20 is smaller than the inner diameter of the connecting pipe 2, and the diameter of the pressure plate 20 is larger than the inner diameter of the ring 10, which facilitates the stable lifting and lowering of the pressure plate 20. The connecting pipe 2 is provided with external threads, which are located at the upper end of the fixing ring 4. The threaded structure allows it to be connected to external components.

[0058] In this invention, the operator rotates the sealing cover assembly 3 and the fixing ring 4 to squeeze the sealing ring 5, thus completing the initial sealing. The operator can use the push rod 24 to rotate the flip plate 26 so that the contact roller 23 and the upper end of the sealing cover assembly 3 come into contact, thereby making the contact roller 23 squeeze the rotating plate 39 so that the rotating plate 39 will be flush with the sealing cover assembly 3.

[0059] When the rotating plate 39 rotates, it can squeeze the squeezing plate 35, causing the U-shaped plate 36 to drive the lead screw nut 34 to descend. When the lead screw nut 34 descends, it can cause the lead screw 33 to drive the swing rod 32 to rotate, causing the swing rod 32 to rotate in a direction perpendicular to the rack 41. When the swing rod 32 rotates, it can push the rack 41 to move through the swing rod 40. When the rack 41 moves, it can cause the linkage rod 29 to push the moving rod 14 to move. When the rack 41 moves, it can cause the drive gear 15 to drive the linkage gear 7 to rotate. When the linkage gear 7 rotates, it can drive the synchronizing rod 37 to rotate, causing the inclined plate assembly 38 to rotate. In actual production, one end of the inclined plate assembly 38 is low and the other end is high, and the two ends are set in an arc shape, which facilitates contact with the top inside the notch 22, and can better squeeze the sleeve 6 and the connecting pipe 2 against the sealing ring 8 to ensure sealing. This is the second layer of sealing.

[0060] When the moving rod 14 moves, it can push the pressure plate 20 and the mounting sealing ring 9 down through the round tube 12, so that the mounting sealing ring 9 and the round ring 10 come into contact, achieving a third seal; at the same time, it can rotate the screw 25, so that the lower end of the screw 25 is inserted into the contact plate 28, and the screw 25 is lowered through screwing, which pushes the sealing cover assembly 3 down through the contact sealing ring 8, so that the sealing ring 5, the contact sealing ring 8 and the mounting sealing ring 9 can be squeezed and sealed better.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An environmentally friendly oil tank sealing device, comprising a tank assembly (1), wherein a connecting pipe (2) is provided through the upper end of the tank assembly (1), a fixing ring (4) is fixed on the connecting pipe (2), a sealing cover assembly (3) is hinged to one side of the fixing ring (4), the sealing cover assembly (3) is located at the upper end of the fixing ring (4), the upper end of the connecting pipe (2) is located inside the sealing cover assembly (3), a linkage mechanism is provided on the sealing cover assembly (3), a rotating plate (39) is provided on the linkage mechanism, a pressing mechanism is provided on the fixing ring (4), and the pressing mechanism and the rotating plate (39) are connected; The extrusion mechanism includes a flip plate (26) rotatably connected to one end of a fixed ring (4). A contact roller (23) is rotatably sleeved on the horizontal end of the flip plate (26). The contact roller (23) abuts against the upper end of the sealing cap assembly (3), and the contact roller (23) abuts against the upper end of the rotating plate (39). The linkage mechanism includes a bearing groove (17) formed on the sealing cover assembly (3), the rotating plate (39) being rotatably connected in the bearing groove (17), and an installation groove (16) formed on one side wall of the sealing cover assembly (3). The installation groove (16) is located at the lower end of the bearing groove (17), and a U-shaped plate (36) is slidably sleeved on the top of the installation groove (16). One end of the U-shaped plate (36) extends into the bearing groove (17), and a pressing plate (35) is fixed to the upper end of the U-shaped plate (36). The pressing plate (35) is located at the lower end of the rotating plate (39), and the other end of the U-shaped plate (36) is located in the sealing cover assembly (3). A mounting bracket (18) is fixed on the end side wall. A lead screw (33) is rotatably sleeved inside the mounting bracket (18). The other end of the U-shaped plate (36) is slidably sleeved on the mounting bracket (18). A lead screw nut (34) is fixed at one end of the U-shaped plate (36) inside the sealing cover assembly (3). The lead screw nut (34) is screwed onto the lead screw (33). A push-pull mechanism is provided on the lead screw (33). The push-pull mechanism includes a swing rod (32) fixed at the upper end of the lead screw (33). One end of the swing rod (32) is rotatably connected to a swing arm (40). One end of the swing arm (40) is rotatably connected to a rack (41). The rack (41) meshes with a drive gear (15). The top of the sealing cap assembly (3) is fixed with a sleeve (6), the sleeve (6) is provided with a pressing mechanism, the pressing mechanism is provided with a pressure plate (20), the connecting pipe (2) is fixed with a ring (10), the lower end of the pressure plate (20) is fixed with a sealing ring (9), and the sealing ring (9) and the ring (10) abut against each other; Multiple synchronizing rods (37) are rotatably sleeved at equal intervals on the circumference sidewall of the sleeve (6). A linkage gear (7) is fixed at the upper end of the synchronizing rod (37), and the linkage gear (7) meshes with the drive gear (15). An inclined plate assembly (38) is fixed at the lower end of the synchronizing rod (37). Multiple notches (22) are opened at equal intervals on the circumference sidewall of the connecting pipe (2). The upper ends of the multiple inclined plate assemblies (38) respectively abut against the top of the multiple notches (22).

2. The environmentally friendly oil tank sealing device according to claim 1, characterized in that: A sealing ring (5) is fixed on the opposite side of the sealing cap assembly (3) and the fixing ring (4), and an abutting sealing ring (8) is fixed on the opposite side of the sleeve (6) and the connecting pipe (2).

3. The environmentally friendly oil tank sealing device according to claim 2, characterized in that: A push rod (24) is fixed to the upper end of the flip plate (26), and an abutment plate (28) is fixed to one end of the sealing cover assembly (3). A screw (25) is screwed onto the horizontal end of the flip plate (26), and the screw (25) is located at the upper end of the abutment plate (28). A nut (27) is screwed onto the screw (25), and the nut (27) is located between the horizontal end of the flip plate (26) and the abutment plate (28).

4. The environmentally friendly oil tank sealing device according to claim 3, characterized in that: The rack (41) is provided with a reciprocating mechanism, and the upper end of the rack (41) is rotatably connected to a linkage rod (29), which is connected to a pressing mechanism.

5. The environmentally friendly oil tank sealing device according to claim 4, characterized in that: The pressing mechanism includes a crossbar (13) fixed inside the sleeve (6), a round tube (12) is slidably sleeved on the crossbar (13), a moving rod (14) is fixed at the lower end of the round tube (12), the moving rod (14) is slidably sleeved on the sleeve (6), the moving rod (14) extends out of one end of the sleeve (6) and is rotatably connected to the linkage rod (29), a slanted push rod (11) is rotatably connected on the round tube (12), the lower end of the slanted push rod (11) is rotatably connected to the upper end of the pressure plate (20), the pressure plate (20) is provided with a lifting mechanism, and the lifting mechanism is connected to the sleeve (6).

6. The environmentally friendly oil tank sealing device according to claim 5, characterized in that: The lifting mechanism includes a connecting ring (21) fixed inside the sleeve (6), and the inclined push rod (11) is disposed inside the connecting ring (21). Vertical rods (19) are slidably sleeved on both sides of the connecting ring (21), and the lower ends of the two vertical rods (19) are respectively fixed on the upper sides of the pressure plate (20).

7. The environmentally friendly oil tank sealing device according to claim 6, characterized in that: The reciprocating mechanism includes a slide rod (30) that is slidably sleeved in a rack (41). The two ends of the slide rod (30) are respectively fixed on opposite side walls inside the sealing cover assembly (3). A resistance spring (31) is sleeved on the slide rod (30). The two ends of the resistance spring (31) are respectively fixed on the rack (41) and the sealing cover assembly (3).

8. The environmentally friendly oil tank sealing device according to claim 7, characterized in that: The upper end of the contact plate (28) has a hole, the depth of which is less than the height of the contact plate (28) and the diameter of which is greater than the diameter of the screw (25). The lower end of the screw (25) is located inside the hole.

9. The environmentally friendly oil tank sealing device according to claim 8, characterized in that: The ring (10) and the connecting pipe (2) are integrally formed. The diameter of the pressure plate (20) is smaller than the inner diameter of the connecting pipe (2). The diameter of the pressure plate (20) is larger than the inner diameter of the ring (10). The connecting pipe (2) is provided with an external thread. The external thread on the connecting pipe (2) is set at the upper end of the fixing ring (4).

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