An external sewage discharge device for a worm gear reducer

Abstract

The present invention relates to the technical field of reducers, and in particular to an external sewage discharge device for worm gear reducers. The purpose of the present invention is to provide an external sewage discharge device for worm gear reducers that can quickly discharge sewage. An external sewage discharge device for worm gear reducers includes a main body box, etc.; a connecting frame is installed on the main body box, the connecting frame is in contact with the main body box, a connecting square tube is fixedly connected to the lower side of the connecting frame, an oil outlet pipe is arranged on the side wall of the main body box, the connecting square tube is in contact with the oil outlet pipe, a collecting box is fixedly connected to the front side of the connecting square tube, and the collecting box and the connecting square tube are connected. The present invention realizes faster emptying of the lubricating oil in the main body box by externally connecting this device. When the worm gear reducer is in continuous operation, due to the sliding connection between the worm gear and the worm gear, the mating area between the two parts will experience severe friction, which will accelerate the degree of wear. Accelerating the replacement of lubricating oil can reduce friction and increase service life.

Description

Technical Field

[0001] The invention relates to the technical field of reducers, and in particular to an external sewage discharge device for a worm gear reducer. Background Art

[0002] The worm gear reducer is a power transmission device that is particularly good at changing the direction of the power source to adapt to different work requirements. And because of the sliding connection between the worm gear, the output power can obtain a larger torque power output. This reduction device has a wide range of applications.

[0003] It is precisely because of this torque change and sliding connection that the friction damage between the worm gear is very serious. In order to alleviate this situation, the inside of the device will be filled with lubricating fluid. Due to the actual use of the reducer, there are overloads and load imbalances, and there are dusty working environments. As the reducer is used for a long time, a lot of metal debris and gradually deteriorated lubricating oil will be generated. If the lubricating oil is not replaced for a long time, the lubricating oil in the reducer will be affected by pollutants such as dust, metal chips, and moisture, which will lead to the accumulation of pollutants, affecting the purity and performance of the lubricating oil, and causing damage or even failure of parts in the reducer.

[0004] In order to solve the above problems, we designed an external sewage discharge device for the worm gear reducer which can quickly discharge sewage. Summary of the invention

[0005] In order to overcome the shortcoming that long-term use of lubricating oil will aggravate the deterioration of the device, the purpose of the present invention is to provide an external sewage discharge device for a worm gear reducer that can quickly discharge sewage.

[0006] The technical solution is: an external sewage discharge device for a worm gear reducer comprises a main body box, a connecting frame is installed on the side of the main body box away from the oil outlet pipe, the connecting frame is in contact with the main body box, a connecting square tube is fixedly connected to the side of the connecting frame close to the oil outlet pipe, an oil outlet pipe is arranged on the side wall of the main body box, a side of the connecting square tube close to the connecting frame is in contact with the oil outlet pipe, the connecting square tube is located on the side of the main body box close to the oil outlet pipe, a collecting box is fixedly connected to the side of the connecting square tube away from the oil outlet pipe, the collecting box and the connecting square tube are communicated, the collecting box is located on the side of the main body box away from the oil outlet pipe, a circular arc plate frame is slidably connected to the side of the connecting square tube close to the oil outlet pipe, a side of the circular arc plate frame close to the connecting frame is in contact with the oil outlet pipe, and a side of the circular arc plate frame away from the oil outlet pipe is slidably connected to The side of the connecting frame away from the oil outlet pipe, the side of the arc plate frame away from the oil outlet pipe is fixedly connected to a limit rod, the limit rod is slidably connected to the side of the connecting frame close to the air inlet, the limit rod and the side of the connecting frame close to the air inlet are connected with a first return spring, the side of the connecting frame away from the air inlet is fixedly connected to a reinforcement plate frame, the reinforcement plate frame is located on the side of the main box close to the air inlet, a connecting pipe is fixedly connected to the reinforcement plate frame, an air inlet is provided on the side of the main box away from the oil outlet pipe, the side of the connecting pipe close to the oil outlet pipe contacts the air inlet, an air outlet pipe is fixedly connected to the side of the air inlet away from the oil outlet pipe, the side of the air outlet pipe close to the oil outlet pipe is connected to the side of the fan away from the oil outlet pipe, the air outlet pipe is connected to the fan, and the side of the fan close to the oil outlet pipe is fixedly connected to the collecting box.

[0007] As an improvement of the above solution, an air outlet is provided on the side of the collecting box away from the oil outlet pipe to ensure that the flow of lubricating liquid and gas outflow from the air outlet are strengthened during sewage discharge, thereby ensuring liquid and gas diversion.

[0008] As an improvement of the above scheme, it also includes a vertical rod, which is rotatably connected to the side of the oil outlet pipe close to the connected square tube, and a limiting ring is symmetrically fixed to the side wall of the oil outlet pipe, and the limiting ring is in contact with the vertical rod on the side close to the oil outlet pipe. A rotating circular plate is fixed to the middle of the vertical rod, and a symmetrical spring assembly is connected between the vertical rod and the outer wall of the oil outlet pipe. The symmetrical spring assembly includes a first torsion spring and a retaining ring. The first torsion spring is wound on the vertical rod, and the two ends of the first torsion spring are respectively connected to the oil outlet pipe and the vertical rod, and a retaining ring is connected between the oil outlet pipe and the vertical rod. The first torsion spring is located inside the retaining ring, and a double-insert rod is fixed to the side of the arc plate frame close to the oil outlet pipe, the double-insert rod is in contact with the rotating circular plate, and the double-insert rod is located in the oil outlet pipe.

[0009] As an improvement of the above solution, a retaining ring is connected between the vertical rod and the outer wall of the oil outlet pipe. The retaining ring protects the spring assembly by blocking it, ensuring that no debris enters the spring assembly, thereby reducing the use time.

[0010] As an improvement of the above scheme, it also includes a clamping half ring and a multi-stage cylinder. The clamping half ring is located on the outside of the air inlet, the clamping half ring contacts the outer wall of the air inlet, and the side wall of the clamping half ring is fixed with symmetrical telescopic rods. The side of the symmetrical telescopic rods away from the air inlet is connected to the side of the connecting frame close to the air inlet. The side wall of the clamping half ring is connected to the output shaft of the symmetrical multi-stage cylinder, the side of the symmetrical multi-stage cylinder away from the air inlet is connected to the side of the connecting frame close to the air inlet, and the telescopic rod is located on the outside of the multi-stage cylinder.

[0011] As an improvement of the above solution, the inner wall of the clamping half ring is provided with a sealing ring. When the clamping half rings on both sides are in contact, the connection between the air inlet and the connecting pipe is sealed to ensure no air leakage and enhance the sewage discharge effect.

[0012] As an improvement of the above scheme, it also includes a round head plate, which is slidably connected to the side of the connecting tube away from the connecting frame, a small round hole is opened on the side of the connecting tube away from the connecting frame, and a flat hole is opened longitudinally on the side of the connecting tube away from the connecting frame, and the flat hole and the small round hole have overlapping parts, the round head plate slides in the flat hole, a connecting thin rod is fixedly connected to the side of the round head plate away from the connecting frame, the connecting thin rod slides in the flat hole on the connecting tube, a limiting frame is fixedly connected to the side of the connecting tube away from the connecting frame, a connecting thin rod is slidably connected to the limiting frame, and a second reset spring is connected between the connecting thin rod and the limiting frame.

[0013] As an improvement of the above scheme, it also includes a movable plate, which is fixedly connected to the side of the limit rod away from the connecting frame, and the side of the connecting tube close to the connecting thin rod is rotatably connected to the thick round rod, the side of the movable plate close to the connecting thin rod is in contact with the side of the thick round rod away from the connecting thin rod, a rotating square plate is fixedly connected to the middle of the thick round rod, a second torsion spring is connected between the thick round rod and the side wall of the connecting tube, hollow plates are sleeved on both ends of the thick round rod, and the side of the hollow plate away from the connecting frame is slidably connected to the left and right ends of the connecting thin rod.

[0014] As an improvement of the above solution, the side of the movable plate close to the connecting pipe is hollow, and a thread line is provided on the inner wall, a thread groove is provided on the side of the thick round rod away from the connecting pipe, and the movable plate and the side of the thick round rod away from the connecting pipe are threadedly matched.

[0015] The beneficial effects of the present invention are as follows:

[0016] The present invention realizes faster emptying of the lubricating oil in the main box by externally connecting the device. When the connecting square tube and the connecting tube contact the oil outlet pipe and the air inlet respectively, the fan is turned on, and the air is pressurized and squeezed into the main box, so that the lubricating oil in the main box flows out of the air inlet faster, flows through the connecting square tube and finally flows into the collection box. Moreover, because the air is pressurized and squeezed into the main box, the solidified lubricating oil and small iron filings can be blown off the worm gear and finally flow into the collection box. When the connecting square tube is close to the oil outlet pipe, the rear side of the arc plate frame will contact the oil outlet pipe and block the oil outlet pipe to prevent the lubricating oil inside from splashing. When the connecting square tube contacts the oil outlet pipe, the arc plate frame will block and clamp the oil outlet pipe to ensure that the connection of the oil outlet pipe will not leak oil, and the connecting frame and the reinforcement plate frame will always be in contact with the side wall of the main box to fix the parts connected thereto.

[0017] When the arc plate frame moves to the right, the connecting square tube also contacts the oil outlet pipe. In order to ensure the safety of the oil outlet pipe and prevent the surrounding environment from being contaminated by lubricating oil, a rotating circular plate and a vertical rod are installed at the right end of the oil outlet pipe. Under the action of the spring assembly and the limit ring, the rotating circular plate and the vertical rod can only rotate in one direction and can only rotate when triggered by the double insertion rod, so that the oil outlet pipe will not release lubricating oil at will.

[0018] When the spring assembly rotates, the first torsion spring and the retaining ring also rotate simultaneously, and the retaining ring seals the connection space between the vertical rod and the oil outlet pipe during this process to ensure that external impurities do not enter the space and ensure the smoothness of the operation of these parts.

[0019] When the connecting pipe contacts the air inlet, the multi-stage cylinder starts to move, allowing the clamping half ring to fit and clamp the air inlet under the limit of the telescopic rod, and the telescopic rod will ensure that the clamping half ring moves horizontally to the side of the air inlet to ensure the tightness of the connection between the two parts, and will also drive the connecting frame to move to the right during the movement, so that the clamping half ring and the connecting frame will also cooperate to achieve linkage between the parts.

[0020] When the clamping half ring clamps the air inlet, the air inlet and the connecting pipe are in contact. In order to ensure the tightness of the connection between the air inlet and the connecting pipe, a sealing ring is provided on the inner wall of the clamping half ring, and the sealing ring is made of soft rubber to prevent gas leakage from causing pressure reduction.

[0021] By squeezing the connecting thin rod, the round head plate is driven to move in the flat hole, and the lower round hole leaks out. At this time, people can observe whether the sewage is unobstructed and whether the waste oil is discharged smoothly through the lower round hole. If it is not discharged, the sewage can continue to be discharged. It can also be noted whether there is blockage, leakage or other unusual conditions, so as to facilitate timely maintenance operations.

[0022] When the limit rod moves to the left, the movable plate connected to it will be threaded with the thick round rod, thereby driving the thick round rod to rotate backward. When the thick round rod rotates, the rotating square plate will also rotate. After the rotating square plate rotates 90 degrees, it will block the connecting pipe and the movement of the airflow, avoiding the high-pressure airflow from affecting the observation, so as to ensure the observation of the discharge of lubrication in the reduction device.

[0023] When the thick round rod rotates, because the moving distance of the connecting thin rod is small and the positions of the two parts lead to different moving distances between the parts, in order to ensure that the thick round rod can rotate normally, the hollow plate drives the hollow plate to rotate after the thick round rod rotates a short distance, so that a more precise fit can be achieved, and because the hollow part on the upper side of the hollow plate can ensure the safe movement of the connecting thin rod, and then it is reset under the action of the second reset spring, the operation is simplified, the working difficulty of the operator is reduced, the occurrence of mistakes is avoided, and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a three-dimensional structural schematic diagram of the main box, oil outlet pipe, air inlet and other components of the present invention.

[0026] Figure 3 It is a three-dimensional structural schematic diagram of the collecting box, connecting square tubes, connecting frame and other components of the present invention.

[0027] Figure 4 It is a three-dimensional structural schematic diagram of the arc plate frame, the limit rod, the first return spring and other components of the present invention.

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention connecting the square tube, the limit rod, the first return spring and other components.

[0029] Figure 6 It is a three-dimensional structural schematic diagram of the vertical rod, rotating circular plate, spring assembly and other components of the present invention.

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the limit ring, the first torsion spring, the retaining ring and other components of the present invention.

[0031] Figure 8 It is a three-dimensional structural schematic diagram of the clamping half ring, telescopic rod, multi-stage cylinder and other components of the present invention.

[0032] Fig. 9 It is a three-dimensional structural schematic diagram of the air inlet, the connecting frame, the first return spring and other components of the present invention.

[0033] Fig.10It is a three-dimensional structural schematic diagram of the round head plate, connecting thin rods, limiting frames and other components of the present invention.

[0034] Fig.11 It is a three-dimensional structural schematic diagram of the lower circular hole, the flat hole, the second return spring and other components of the present invention.

[0035] Fig.12 It is a three-dimensional structural schematic diagram of the movable plate, thick round rod, second torsion spring and other components of the present invention.

[0036] Fig.13 It is a three-dimensional structural schematic diagram of the round head plate, connecting thin rod, second torsion spring and other components of the present invention.

[0037] Fig.14 It is a three-dimensional structural schematic diagram of the movable plate, thick round rod, rotating square plate and other components of the present invention.

[0038] Fig.15 It is a three-dimensional structural schematic diagram of the thick round rod, rotating square plate, hollow plate and other components of the present invention.

[0039] Names of the numbers in the figure: 1. main box, 2. oil outlet pipe, 3. air inlet, 4. collecting box, 5. connecting square tube, 6. connecting frame, 7. arc plate frame, 8. limit rod, 9. first return spring, 10. reinforcement plate frame, 11. fan, 12. connecting pipe, 13. air outlet pipe, 14. vertical rod, 1401, limit ring, 15. rotating circular plate, 1601, first torsion spring, 1602, retaining ring, 17. double plug rod, 18. clamping half ring, 19. telescopic rod, 20. multi-stage cylinder, 21. round head plate, 2101, lower round hole, 2102, flat hole, 22. connecting thin rod, 23. limit frame, 24. second return spring, 25. moving plate, 26. thick round rod, 2601, rotating square plate, 27. second torsion spring, 28. hollow plate. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1

[0042] A worm gear reducer external sewage discharge device, such as Figure 1-Figure 5As shown, it includes a main box 1 and a fan 11. A connecting frame 6 is provided on the top wall of the main box 1. The connecting frame 6 is in contact with the main box 1. A connecting square tube 5 is fixedly connected to the lower side of the connecting frame 6. An oil outlet pipe 2 is provided on the lower side of the left wall of the main box 1. The rear side of the connecting square tube 5 is in contact with the oil outlet pipe 2. The connecting square tube 5 is located on the left side of the main box 1. A collecting box 4 is fixedly connected to the front side of the connecting square tube 5. The collecting box 4 is connected to the connecting square tube 5. The collecting box 4 is located on the front side of the main box 1. An arc plate frame 7 is slidably connected to the rear side of the connecting square tube 5. The rear wall of the lower side of the arc plate frame 7 is in contact with the oil outlet pipe 2. The upper side of the arc plate frame 7 is slidably connected to the upper left side of the connecting frame 6. A limit rod 8 is fixed to the upper wall of the arc plate frame 7, and the limit rod 8 is slidably connected to the upper left part of the connecting frame 6. A first return spring 9 is connected between the limit rod 8 and the upper part of the left inner wall of the connecting frame 6. A reinforcement plate frame 10 is fixed to the front wall of the connecting frame 6. The reinforcement plate frame 10 is located above the main box 1. A connecting pipe 12 is fixed to the reinforcement plate frame 10. An air inlet 3 is provided on the front side of the upper wall of the main box 1. The rear side of the connecting pipe 12 is in contact with the air inlet 3. An air outlet pipe 13 is fixed to the front side of the air inlet 3. The lower end of the air outlet pipe 13 is connected to the upper wall of the fan 11. The air outlet pipe 13 is communicated with the fan 11, and the lower wall of the fan 11 is fixed to the collecting box 4.

[0043] The worm gear reducer is a device that is good at changing the direction of power transmission. In the process of changing the transmission direction, the device will amplify and reduce the torque, which will cause the parts of the reducer to wear faster. In order to alleviate the wear of the parts, it is necessary to replace the lubricating oil periodically. In order to enhance the convenience of using the device, the device is designed to be detachable. When the worm gear reducer needs to use the device, the user first moves the connecting square tube 5 along the left side of the main box 1 to the oil outlet pipe 2, first pulls the arc plate frame 7 outward, so that the connecting square tube 5 When the circular arc plate frame 7 is in contact with one end of the oil outlet pipe 2, when the circular arc plate frame 7 is pulled outward, the limiting rod 8 connected to the circular arc plate frame 7 will compress the first return spring 9. After the connecting square tube 5 moves a certain distance, when the rear end of the connecting square tube 5 contacts the oil outlet pipe 2, the circular arc plate frame 7 is released. Under the reset action of the first return spring 9, the circular arc plate frame 7 will move toward the middle, and finally the circular arc plate frame 7 will contact the main box 1, and together with the connecting square tube 5, strengthen the sealing of the oil outlet pipe 2, and when the connecting square tube 5 moves backward, it will drive the connecting frame 6 to move backward and connect with the main box 1. When the connecting frame 6 moves to the rear side, the reinforcing plate frame 10 will also move together, and then the connecting pipe 12 connected to the reinforcing plate frame 10 will also move with it. The rear end of the connecting pipe 12 will first contact the air inlet 3, and the front end of the connecting pipe 12 will be connected to the air outlet pipe 13, and the air outlet pipe 13 will also be connected to the fan 11, and the fan 11 will be fixed to the upper part of the collecting box 4. At this time, the connecting square tube 5 and the connecting pipe 12 will contact the oil outlet pipe 2 and the air inlet 3 respectively, and the fan 11 will start to operate, which will send strong wind through the air outlet pipe 13 and the connecting pipe 12. The tube 12 is directly poured into the air inlet 3, so that all the used lubricating oil in the device can be squeezed into the connecting square tube 5, and then stored in the collection box 4 through the connecting square tube 5. When the whole process is completed, the user can remove this external device. When it is retrieved, first pull the arc plate frame 7, compress the first return spring 9 again, and then pull these connected parts forward. When the connecting square tube 5 no longer contacts the oil outlet pipe 2 and is separated from the main box 1, the sewage discharge process is completed, thereby achieving the storage effect, and multiple reducers can also be used externally.

[0044] like Figure 3 As shown, the rear wall of the collecting box 4 is provided with an air outlet to ensure that the flow of lubricating liquid and gas outflow from the air outlet is strengthened during sewage discharge, thereby ensuring the diversion of liquid and gas.

[0045] When the lubricating oil in the main box 1 is squeezed into the collecting box 4, since the driving force for the lubricating oil to move forward is wind pressure, there is not only lubricating oil but also air in the collecting box 4. Therefore, an exhaust hole is provided on the upper part of the front wall of the collecting box 4 to facilitate air discharge.

[0046] Example 2

[0047] On the basis of Example 1, Figure 6 and Figure 7 As shown, it also includes a vertical rod 14, which is rotatably connected to the oil outlet pipe 2. The side wall of the oil outlet pipe 2 is symmetrically fixed with a limit ring 1401. The upper and lower walls of the limit ring 1401 are in contact with the upper and lower sides of the vertical rod 14. A rotating circular plate 15 is fixed to the middle of the vertical rod 14. A symmetrical spring assembly is connected between the vertical rod 14 and the outer wall of the oil outlet pipe 2. The symmetrical spring assembly includes a first torsion spring 1601 and a retaining ring 1602. The first torsion spring 1601 is wound on the vertical rod 14, and the two ends of the first torsion spring 1601 are respectively connected to the oil outlet pipe 2 and the vertical rod 14, and a retaining ring 1602 is connected between the oil outlet pipe 2 and the vertical rod 14. The first torsion spring 1601 is located inside the retaining ring 1602, and a double-inserted rod 17 is fixed to the lower part of the right wall of the arc plate frame 7. The double-inserted rod 17 is in contact with the side wall of the rotating circular plate 15, and the double-inserted rod 17 is located in the oil outlet pipe 2.

[0048] When the circular arc plate frame 7 approaches the oil outlet pipe 2, the double plug rod 17 connected to the circular arc plate frame 7 will squeeze one side of the rotating circular plate 15. Because the rotating circular plate 15 is fixed on the vertical rod 14, the rotating circular plate 15 will rotate 90 degrees with the vertical rod 14. The rotation of the vertical rod 14 will torsion the spring assembly, and under the action of the limit ring 1401, the rotating circular plate 15 and the vertical rod 14 only rotate in one direction. When the lubricating oil is discharged, the circular arc plate frame 7 moves away from the oil outlet pipe 2, and the double plug rod 17 will also move synchronously and no longer interfere with the oil outlet pipe 2. When the double plug rod 17 is reset, the rotating circular plate 15 and the vertical rod 14 will reset themselves under the reaction force of the first torsion spring 1601 of the spring assembly. At this time, the limit ring 1401 will prevent the rotating circular plate 15 and the vertical rod 14 from being over-reset due to the reaction force of the first torsion spring 1601, thereby ensuring the closing effect of the rotating circular plate 15 on the oil outlet pipe 2 after the reset.

[0049] like Figure 7 As shown, the retaining ring 1602 is connected between the vertical rod 14 and the outer wall of the oil outlet pipe 2. The first torsion spring 1601 is protected by the blocking of the retaining ring 1602, ensuring that no debris enters the interior of the retaining ring 1602, thereby extending the service life of the first torsion spring 1601 and ensuring the sealing of the rotating connection between the vertical rod 14 and the oil outlet pipe 2.

[0050] like Figure 8 and Fig. 9 As shown, it also includes a clamping half ring 18 and a multi-stage cylinder 20. The clamping half ring 18 is located on the left and right sides of the air inlet 3, and the clamping half ring 18 contacts the outer wall of the air inlet 3. Symmetrical telescopic rods 19 are fixedly connected to the upper and lower sides of the left and right walls of the clamping half ring 18. The outer sides of the symmetrical telescopic rods 19 are connected to the inner wall of the connecting frame 6. The left and right sides of the symmetrical multi-stage cylinder 20 are connected to the inner wall of the connecting frame 6, and the telescopic rods 19 are located on the upper and lower sides of the multi-stage cylinder 20.

[0051] When the connecting frame 6 in contact with the main box 1 moves backward, the multi-stage cylinder 20 connected to the inner wall of the connecting frame 6 is in a contracted state. At this time, the clamping half ring 18 connected to the output end of the multi-stage cylinder 20 is also in a state away from the air inlet 3. When the connecting pipe 12 contacts the air inlet 3, the multi-stage cylinders 20 on both sides will start to move inward, the clamping half ring 18 connected to the output end of the multi-stage cylinder 20 will contact the air inlet 3, and the telescopic rods 19 connected to the upper and lower sides of the clamping half ring 18 will also move with it, and the clamping half ring 18 will move with the arc plate frame 7.

[0052] like Fig. 9 As shown, the inner wall of the clamping half ring 18 is provided with a sealing ring, and the sealing ring is made of rubber. When the clamping half rings 18 on both sides are in contact, the connection between the air inlet 3 and the connecting pipe 12 is sealed, and the air tightness between the air inlet 3 and the connecting pipe 12 is strengthened to ensure no air leakage and enhance the sewage discharge effect.

[0053] like Fig.10 and Fig.11 As shown, it also includes a round head plate 21, which is slidably connected to the rear side of the upper wall of the connecting tube 12. A small round hole is opened on the rear side of the upper wall of the connecting tube 12, and a flat hole 2102 is opened longitudinally on the rear side of the connecting tube 12. The flat hole 2102 and the small round hole have overlapping parts. The round head plate 21 slides in the flat hole 2102, and a connecting thin rod 22 is fixedly connected to the front side of the upper wall of the round head plate 21. The connecting thin rod 22 slides in the flat hole 2102 on the connecting tube 12. A limiting frame 23 is fixedly connected to the front side of the upper wall of the connecting tube 12, and the connecting thin rod 22 is slidably connected between the limiting frame 23, and a second reset spring 24 is connected between the connecting thin rod 22 and the limiting frame 23.

[0054] After the device has been running for a period of time, in order to ensure the discharge effect of the lubricating oil inside the main box 1, the connecting thin rod 22 can be pulled to the front side. The connecting thin rod 22 will move forward with the round head plate 21 in the flat hole 2102, and the connecting thin rod 22 will slide on the limit frame 23 at the same time, and will compress the second return spring 24 connected to the connecting thin rod 22. After moving to the end, the lower circular hole 2101 will be completely exposed. At this time, the discharge of the lubricating oil inside the main box 1 can be checked. After the check is completed, the connecting thin rod 22 can be loosened. The connecting thin rod 22 and the round head plate 21 will return to their original positions under the reaction force of the second return spring 24. When the lower circular hole 2101 is exposed, people can also use tools to check the wear condition of the internal parts of the main box 1 to avoid mistakes.

[0055] like Figure 12-Figure 15As shown, it also includes a movable plate 25, which is fixedly connected to the upper wall of the limiting rod 8. A thick round rod 26 is rotatably connected to the rear side of the connecting tube 12. The right wall of the movable plate 25 contacts the left side of the thick round rod 26. A rotating square plate 2601 is fixedly connected to the middle of the thick round rod 26. The rotating square plate 2601 is located below the flat hole 2102. A second torsion spring 27 is connected between the thick round rod 26 and the side wall of the connecting tube 12. Hollow plates 28 are sleeved on both ends of the thick round rod 26. The upper sides of the two hollow plates 28 are slidably connected to the left and right ends of the connecting thin rod 22.

[0056] like Fig.12 and Fig.15 As shown, the right side of the movable plate 25 is hollow, and the inner wall is provided with a thread line, and the left end of the thick round rod 26 is also provided with a thread groove, and the movable plate 25 and the left end of the thick round rod 26 are threadedly matched.

[0057] When people start to check, the multi-stage cylinder 20 is started to retract, so that it moves to the left with the clamping half ring 18 at the left end. Because the limit rod 8 is connected to the arc plate frame 7, and the arc plate frame 7 is fixed to the left clamping half ring 18, the limit rod 8 will move to the left with the clamping half ring 18, and move the moving plate 25 to the left. The moving plate 25 will contact the thick round rod 26 and threadedly fit, and finally the thick round rod 26 will rotate backward. The rotating square plate 2601 connected to the thick round rod 26 will also rotate 90 degrees and block the inner cavity of the connecting pipe 12. For details, refer to Fig.13 , the connecting pipe 12 is hollow, and when the thick round rod 26 rotates, the second torsion spring 27 connected between the thick round rod 26 and the connecting pipe 12 is twisted. At this time, the hollow plates 28 connected to the two ends of the thick round rod 26 will also rotate backward. Because the hollow plates 28 and the connecting thin rod 22 are slidingly connected, the connecting thin rod 22 is squeezed and moved backward, and the round head plate 21 moves in the flat hole 2102, and the lower round hole 2101 is leaked out. At this time, the rotating square plate 2601 is closed with the connecting pipe 12, and the gas in the connecting pipe 12 stops flowing to avoid the high-pressure airflow affecting the observation. When resetting, the multi-stage cylinder 20 is started, and the movable end of the multi-stage cylinder 20 extends out and resets with the clamping semi-ring 18 at the left end. The limit rod 8 also moves and resets under the drive of the arc plate frame 7. At this time, the thick round rod 26 rotates backward and resets under the action of the thread. When the thick round rod 26 is reset, the hollow plate 28 and the connecting thin rod 22 are reset.

[0058] When the moving plate 25 moves, because the right side of the moving plate 25 is hollow, with a thread groove inside, and also threadedly matched with the left end of the thick round rod 26, when the moving plate 25 moves, the thick round rod 26 rotates under the action of the thread.

[0059] like Fig.15As shown, the lower side of the hollow plate 28 and the end of the thick round rod 26 close to each other are fixed with a protrusion, and the protrusion on the thick round rod 26 contacts the protrusion on the hollow plate 28 after rotating a certain distance, and an extrusion fit occurs.

[0060] When the multi-stage cylinder 20 moves to the left with the arc plate frame 7, the limit rod 8 and the movable plate 25, the thick round rod 26 rotates. Because of the positional relationship between the two parts, the moving distances between the parts are different. At this time, the hollow plate 28 connected thereto does not rotate first. The inner wall of the lower end of the hollow plate 28 is provided with a protrusion, and the outer wall of the left end of the thick round rod 26 is also provided with a protrusion. Therefore, when the thick round rod 26 rotates a certain distance, it will be squeezed with the hollow plate 28. The thick round rod 26 will rotate with the hollow plate 28, so it will squeeze the connecting thin rod 22 to drive the round head plate 21 to move in the flat hole 2102, and the lower circular hole 2101 will leak out. At this time, the person can observe through the lower circular hole 2101 whether the sewage discharge is unobstructed and whether the waste oil is discharged smoothly. If it is not discharged, the sewage discharge can continue. It can also be noted whether there is blockage, leakage or other unusual conditions, and it is convenient to carry out maintenance operations in time.

[0061] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A worm gear reducer external sewage discharge device, characterized in that: The invention comprises a main body box (1) and a fan (11). A connecting frame (6) is installed on a side of the main body box (1) away from the oil outlet pipe (2). The connecting frame (6) is in contact with the main body box (1). A connecting square tube (5) is fixedly connected to a side of the connecting frame (6) close to the oil outlet pipe (2). The side wall of the main body box (1) is provided with the oil outlet pipe (2). A side of the connecting square tube (5) close to the connecting frame (6) is in contact with the oil outlet pipe (2). The connecting square tube (5) is located on a side of the main body box (1) close to the oil outlet pipe (2). A collecting box (4) is fixedly connected to the side away from the oil outlet pipe (2), and the collecting box (4) is connected to the connecting square pipe (5). The collecting box (4) is located on the side of the main box (1) away from the oil outlet pipe (2). The side of the connecting square pipe (5) close to the oil outlet pipe (2) is slidably connected to an arc plate frame (7). The side of the arc plate frame (7) close to the connecting frame (6) is in contact with the oil outlet pipe (2). The side of the arc plate frame (7) away from the oil outlet pipe (2) is slidably connected to the side of the connecting frame (6) close to the oil outlet pipe (2). A limiting rod (8) is fixedly connected to a side of the connecting frame (7) away from the oil outlet pipe (2), the limiting rod (8) is slidably connected to a side of the connecting frame (6) close to the air inlet (3), a first return spring (9) is connected between the limiting rod (8) and a side of the connecting frame (6) close to the air inlet (3), a reinforcing plate frame (10) is fixedly connected to a side of the connecting frame (6) away from the air inlet (3), the reinforcing plate frame (10) is located on a side of the main box (1) close to the air inlet (3), and a connecting pipe (12) is fixedly connected to the reinforcing plate frame (10). An air inlet (3) is provided on a side of the main box (1) away from the oil outlet pipe (2); a side of the connecting pipe (12) close to the oil outlet pipe (2) contacts the air inlet (3); an air outlet pipe (13) is fixedly connected to a side of the connecting pipe (12) away from the oil outlet pipe (2); a side of the air outlet pipe (13) close to the oil outlet pipe (2) is fixedly connected to a side of the fan (11) away from the oil outlet pipe (2); the air outlet pipe (13) is connected to the fan (11); and a side of the fan (11) close to the oil outlet pipe (2) is fixedly connected to the collecting box (4).

2. The worm gear reducer external sewage discharge device according to claim 1, characterized in that: An air outlet is provided on a side of the collecting box (4) away from the oil outlet pipe (2).

3. The worm gear reducer external sewage discharge device as claimed in claim 2, characterized in that: It also includes a vertical rod (14), which is rotatably connected to a side of the oil outlet pipe (2) close to the connecting square pipe (5), a limiting ring (1401) is symmetrically fixed to the side wall of the oil outlet pipe (2), the limiting ring (1401) is in contact with the vertical rod (14) on the side close to the oil outlet pipe (2), a rotating circular plate (15) is fixed to the middle of the vertical rod (14), and a symmetrical spring assembly is connected between the vertical rod (14) and the outer wall of the oil outlet pipe (2), and the symmetrical spring assembly includes a first torsion spring (1601) and a retaining ring (1602). The first torsion spring (1601) is wound around the vertical rod (14), and the two ends of the first torsion spring (1601) are respectively connected to the oil outlet pipe (2) and the vertical rod (14). A retaining ring (1602) is connected between the oil outlet pipe (2) and the vertical rod (14). The first torsion spring (1601) is located inside the retaining ring (1602). A double-inserted rod (17) is fixedly connected to one side of the circular arc plate frame (7) close to the oil outlet pipe (2). The double-inserted rod (17) is in contact with the rotating circular plate (15), and the double-inserted rod (17) is located inside the oil outlet pipe (2).

4. The worm gear reducer external sewage discharge device as claimed in claim 3, characterized in that: The retaining ring (1602) is connected between the vertical rod (14) and the outer wall of the oil outlet pipe (2).

5. The worm gear reducer external sewage discharge device as claimed in claim 4, characterized in that: The invention also comprises a clamping half ring (18) and a multi-stage cylinder (20). The clamping half ring (18) is located outside the air inlet (3). The clamping half ring (18) contacts the outer wall of the air inlet (3). A symmetrical telescopic rod (19) is fixedly connected to the side wall of the clamping half ring (18). The side of the symmetrical telescopic rod (19) away from the air inlet (3) is connected to the side of the connecting frame (6) close to the air inlet (3). The side wall of the clamping half ring (18) is connected to the output shaft of the symmetrical multi-stage cylinder (20). The side of the symmetrical multi-stage cylinder (20) away from the air inlet (3) is connected to the side of the connecting frame (6) close to the air inlet (3).

6. The worm gear reducer external sewage discharge device as claimed in claim 5, characterized in that: A sealing ring is provided on the inner wall of the clamping half ring (18), and the sealing ring is made of rubber.

7. The worm gear reducer external sewage discharge device as claimed in claim 6, characterized in that: The device further comprises a round head plate (21), the round head plate (21) being slidably connected to a side of the connecting tube (12) away from the connecting frame (6), a small round hole penetrating therethrough is formed on the side of the connecting tube (12) away from the connecting frame (6), a flat hole (2102) being longitudinally formed on the side of the connecting tube (12) away from the connecting frame (6), the flat hole (2102) and the small round hole having overlapping portions, the round head plate (21) sliding in the flat hole (2102), a connecting thin rod (22) being fixedly connected to the side of the round head plate (21) away from the connecting frame (6), the connecting thin rod (22) sliding in the flat hole (2102) on the connecting tube (12), a limiting frame (23) being fixedly connected to the side of the connecting tube (12) away from the connecting frame (6), the connecting thin rod (22) being slidably connected to the limiting frame (23), and a second return spring (24) being connected between the connecting thin rod (22) and the limiting frame (23).

8. The worm gear reducer external sewage discharge device as claimed in claim 7, characterized in that: The invention also comprises a movable plate (25), the movable plate (25) being fixedly connected to a side of the limit rod (8) away from the connecting frame (6), a side of the connecting tube (12) close to the connecting thin rod (22) being rotatably connected to a thick round rod (26), a side of the movable plate (25) close to the connecting thin rod (22) being in contact with a side of the thick round rod (26) away from the connecting thin rod (22), a rotating square plate (2601) being fixedly connected to the middle of the thick round rod (26), a second torsion spring (27) being connected between the thick round rod (26) and a side wall of the connecting tube (12), hollow plates (28) being sleeved at both ends of the thick round rod (26), and a side of the hollow plate (28) away from the connecting frame (6) being slidably connected to the left and right ends of the connecting thin rod (22).

9. The worm gear reducer external sewage discharge device as claimed in claim 8, characterized in that: The side of the movable plate (25) close to the connecting pipe (12) is hollow, and a thread line is provided on the inner wall. The side of the thick round rod (26) away from the connecting pipe (12) is provided with a thread groove. The movable plate (25) and the side of the thick round rod (26) away from the connecting pipe (12) are threadedly matched.

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