Vacuum pump with oil outlet convenient to clean

Abstract

The utility model relates to the field of vacuum pumps, and discloses a vacuum pump with an oil outlet convenient to clean, which comprises a frame and a pump body, the pump body is mounted in the frame, an inlet pipe is arranged at the top of the frame, an outlet pipe is arranged on the left side of the frame, an oil inlet is arranged at the top of an oil tank of the pump body, and an oil outlet is arranged at the bottom of the oil tank. The oil outlet comprises a nut located at the bottom end of the oil outlet. According to the vacuum pump with the oil outlet convenient to clean, by arranging the nut and the scraping rod, a user can unscrew the nut when oil drainage or new oil replacement is needed, in the screwing process of the nut, the scraping rod can rotate along with the nut, meanwhile, the knife face of the scraping rod is driven to automatically scrape oil dirt and impurities attached to the inner wall of the oil outlet, and the oil dirt and impurities are removed along with gradual loosening of the nut; and the scraped oil stains smoothly enter the oil storage tank under the action of gravity, so that the oil stains on hands are reduced, meanwhile, more smooth discharged oil flowing is ensured, the maintenance process is simplified, and the problem that an oil discharge port is difficult to clean during oil discharge of a traditional vacuum pump is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum pump technical field, concretely is a vacuum pump with oil outlet convenient to clean. BACKGROUND

[0002] The vacuum pump uses lubricating oil in the working process to ensure the normal operation of the parts, reduce the friction and prolong the service life of the equipment, after long-term use, the lubricating oil will be polluted by the outside world or the performance will be deteriorated, which will cause the impurity deposition in the pump, and the regular oil discharge maintenance becomes very important. The traditional oil discharge maintenance operation usually involves unscrewing the oil outlet nut, draining the old oil into the oil storage container, and then cleaning the oil outlet to ensure that the new lubricating oil will not be polluted by impurities.

[0003] At present, most of the oil outlets of the vacuum pumps on the market have certain defects. If the oil outlet is horizontally arranged, the lubricating oil is easy to remain in the inner wall of the pump, causing incomplete oil discharge. If the oil outlet is vertically downward, although the oil can be discharged more completely, the oil stains are easy to flow to the hands and the surrounding equipment when cleaning the oil outlet and impurities, increasing the cleaning difficulty.

[0004] Therefore, it is necessary to design an oil outlet device with convenient cleaning function to solve the above technical defects. SUMMARY

[0005] The utility model discloses a vacuum pump with oil outlet convenient to clean, which solves the problem of difficult cleaning of the oil outlet in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a vacuum pump with oil outlet convenient to clean, comprising a rack and a pump body, the pump body is installed in the rack, an inlet pipe is arranged on the top of the rack, an outlet pipe is arranged on the left side of the rack, an oil inlet is arranged on the top of the oil tank of the pump body, an oil outlet is arranged on the bottom of the oil tank, the oil outlet comprises a nut at the bottom end, an oil storage groove is arranged in the nut, a scraping rod is fixedly connected to the top end of the nut, the right side wall of the scraping rod is a knife face, the nut and the oil outlet are in inverted "T" shape, and the nut is coated with anticorrosive rubber.

[0007] As a further technical scheme of the utility model, the bottom end of the rack is fixedly connected with a foot at each corner.

[0008] As a further technical scheme of the utility model, the top end of the nut and the bottom end of the oil outlet are both machined with external threads, an external bolt is assembled outside the external threads, a sealing ring is arranged on the inner wall of the external bolt, and the oil outlet and the nut are connected and assembled through the external bolt.

[0009] As a further technical scheme of the utility model, the scraper rod width is one eighth of the inner diameter of the oil outlet.

[0010] As a further technical scheme of the utility model, the bottom end of the scraper rod is provided with a socket, the inner wall of the socket is processed with a cross-shaped slot, the top edge of the nut is welded with a welding block, the top of the welding block is welded with a cross-shaped inserting column, the cross-shaped inserting column is matched with the cross-shaped slot, and the scraper rod is connected with the nut through the cross-shaped inserting column.

[0011] As a further technical scheme of the utility model, the bottom end of the scraper rod is provided with a socket, the inner wall of the socket is processed with a cross-shaped slot, the top edge of the nut is welded with a welding block, the top of the welding block is welded with a cross-shaped inserting column, the cross-shaped inserting column is matched with the cross-shaped slot, and the scraper rod is connected with the nut through the cross-shaped inserting column.

[0012] As a further technical scheme of the utility model, the bottom end of the scraper rod is provided with a socket, the inner wall of the socket is processed with a cross-shaped slot, the top edge of the nut is welded with a welding block, the top of the welding block is welded with a cross-shaped inserting column, the cross-shaped inserting column is matched with the cross-shaped slot, and the scraper rod is connected with the nut through the cross-shaped inserting column.

[0013] As a further technical scheme of the utility model, the bottom end of the scraper rod is provided with a socket, the inner wall of the socket is processed with a cross-shaped slot, the top edge of the nut is welded with a welding block, the top of the welding block is welded with a cross-shaped inserting column, the cross-shaped inserting column is matched with the cross-shaped slot, and the scraper rod is connected with the nut through the cross-shaped inserting column.

[0014] Compared with the prior art, the utility model has the advantages that the oil outlet convenient to clean of the utility model not only realizes automatic scraping of the oil stains and impurities adhered to the inner wall of the oil outlet during oil discharge, reduces hand contamination of oil stains, realizes convenient disassembly and assembly, reduces cleaning workload, improves heat dissipation efficiency, and is convenient to clean.

[0015] The oil outlet, the nut and the scraper rod are arranged, the bottom end of the oil tank of the vacuum pump is provided with the oil outlet, the oil outlet is used for plugging, when oil discharge or new oil replacement is needed, the user can unscrew the nut, the scraper rod is rotated along with the nut during the screwing process, the scraper rod is used for automatically scraping the oil stains and impurities adhered to the inner wall of the oil outlet, the scraped oil stains enter the oil storage groove under the action of gravity along with the gradual unscrewing of the nut, the problem that the traditional vacuum pump is difficult to clean the oil outlet during oil discharge is solved, hand contamination of oil stains is reduced, and smoother oil discharge flow is ensured, and the maintenance process is simplified.

[0016] The cross-shaped inserting column, the cross-shaped slot, the socket and the nut are arranged, the scraper rod is detachably designed, the bottom cross-shaped slot and the socket are connected to the cross-shaped inserting column, the connection adopts a plug-in type design, during installation, the scraper rod is only needed to be inserted into the nut, the scraper rod can be quickly installed in place, during disassembly, the scraper rod is only needed to be pulled out upward, the scraper rod can be separated from the nut, when the oil stains and impurities accumulated on the scraper rod need to be removed periodically, the cleaning workload can be reduced, and component damage caused by a complex disassembly and assembly process is avoided.

[0017] By setting up the heat dissipation window, bottom cover plate, bolt, the heat dissipation window is set up at the rear cover plate position of the vacuum pump, the heat dissipation window is fixed through the cooperation of the bottom cover plate and the bolt, and a dustproof structure is formed, which not only provides effective protection for the heat dissipation window and avoids dust or other impurities from entering and damaging the circuit, but also is convenient for cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view sectional structure schematic view of the utility model;

[0019] Figure 2 It is an oil outlet formal sectional structure schematic view of the utility model;

[0020] Figure 3 It is a cross insertion column connection mode schematic view of the utility model;

[0021] Figure 4 It is a dustproof net side view structure schematic view of the utility model.

[0022] In the drawing: 1, rack; 2, inlet pipe; 3, pump body; 4, outlet pipe; 5, footing; 6, oil inlet; 7, oil outlet; 8, bottom cover plate; 9, bolt; 10, heat dissipation window; 11, fixed bolt; 12, heat dissipation fan; 13, external thread; 14, external bolt; 15, oil storage tank; 16, nut; 17, sealing ring; 18, scraper rod; 19, knife face; 20, cross insertion slot; 21, insertion opening; 22, cross insertion column; 23, welding block; 24, dustproof net; 25, connecting bolt. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4The utility model provides an embodiment: a vacuum pump convenient for cleaning of oil outlet, including frame 1 and pump body 3, frame 1 is installed with pump body 3, frame 1 top is provided with import pipe 2, frame 1 left side is provided with export pipe 4, pump body 3 oil tank top is provided with oil inlet 6, oil tank bottom is provided with oil outlet 7, oil outlet 7 includes the nut 16 at its bottom end, the nut 16 inside is provided with oil storage groove 15, the nut 16 top end is fixedly connected with scraper bar 18, scraper bar 18 right side wall is knife face 19, the nut 16 and oil outlet 7 are inverted " T " character shape, the nut 16 outside is covered with anticorrosive rubber, knife face 19 is in contact with the inner wall of oil outlet 7, and the width of scraper bar 18 is one eighth of the inner diameter of oil outlet 7, and bottom cover plate 8 is arranged below oil outlet 7, and the bottom cover plate 8 is fixedly connected with bolt 9 between frame 1, and the bottom cover plate 8 is located directly below oil outlet 7,

[0025] Specifically, as shown in Figure 1 、 Figure 2 and Figure 3 , by setting oil outlet 7, nut 16, scraper bar 18, the bottom end of the oil tank of the vacuum pump is provided with oil outlet 7 for plugging oil, when oil needs to be discharged or replaced with new oil, the user can unscrew the nut 16, and the scraper bar 18 will rotate with the nut 16 during the screwing process, and the knife face 19 of the scraper bar 18 automatically scrapes off the oil stains and impurities attached to the inner wall of the oil discharge port, and as the nut 16 is gradually loosened, the scraped oil stains enter the oil storage groove 15 under the action of gravity.

[0026] The top end of the nut 16 and the outer wall of the bottom end of the oil outlet 7 are both machined with external threads 13, the external threads 13 are externally fitted with external bolts 14, the inner wall of the external bolts 14 is provided with a sealing ring 17, the oil outlet 7 and the nut 16 are connected and assembled by the external bolts 14, the bottom end of the scraper bar 18 is provided with a socket 21, the inner wall of the socket 21 is machined with a cross-shaped slot 20, a welding block 23 is welded on the top edge of the nut 16, a cross-shaped insertion column 22 is welded on the top of the welding block 23, the cross-shaped insertion column 22 is embedded and matched with the cross-shaped slot 20, and the scraper bar 18 is connected with the nut 16 through the cross-shaped insertion column 22.

[0027] Specifically, as shown in Figure 1 、 Figure 2 and Figure 3 , the scraper bar 18 is detachably designed, and is connected to the cross-shaped insertion column 22 through the cross-shaped slot 20 and the socket 21 at the bottom, the connection adopts a plug-in design, and when installing, the scraper bar 18 only needs to be inserted into the nut 16, so that it can be quickly installed in place, and when disassembling, the scraper bar 18 only needs to be pulled out upward, so that it can be easily separated from the nut 16.

[0028] The rack 1 bottom end four corners are fixedly connected with ground anchors 5, the rack 1 rear end cover plate is fixedly connected with a heat dissipation window 10, the rack 1 and the rack 1 rear cover plate are fixedly connected with fixed bolts 11, the heat dissipation window 10 inner wall is fixedly connected with heat dissipation fans 12, the heat dissipation window 10 outer wall is fixedly connected with dust screens 24, and the dust screen 24 and the heat dissipation window 10 are fixedly connected with four groups of connecting bolts 25.

[0029] Specifically, as shown in Figure 1 and Figure 4 The heat dissipation window 10 is fixed through the cooperation of the bottom cover plate 8 and the bolt 9, forming a dustproof structure.

[0030] Working principle: the bottom end of the oil outlet 7 is provided with a detachable bottom cover plate 8, after removing the bottom cover plate 8, the bottom of the oil outlet 7 is unblocked, the nut 16 is loosened, the scraper rod 18 will rotate with it during the screwing process, and at the same time, the knife edge 19 of the scraper rod 18 automatically scrapes off the oil stains and impurities attached to the inner wall of the oil outlet, as the nut 16 is gradually loosened, the scraped oil stains enter the oil storage tank 15 under the action of gravity, the scraper rod 18 is detachable, and is connected to the cross-shaped insertion column 22 through the cross-shaped insertion slot 20 and the insertion port 21 at the bottom, the connection adopts plug-in design, when installing, only need to insert the scraper rod 18 into the nut 16, then it can be quickly installed in place, when disassembling, only need to pull out the scraper rod 18 upwards, then it can be easily separated from the nut 16, when it is necessary to remove the oil stains and impurities accumulated on the scraper rod 18 periodically, the cleaning workload can be reduced, after finishing discharging oil, the external bolt 14 is sleeved on the upper side of the nut 16, then the nut 16 is aligned with the oil outlet 7, the external bolt 14 is continued to be screwed, so that the oil outlet 7 and the nut 16 are connected, and then the oil outlet 7 can be blocked.

[0031] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. A vacuum pump with an oil outlet that is easy to clean, comprising a frame (1) and a pump body (3), characterized in that: The rack (1) is provided with a pump body (3), an inlet pipe (2) is arranged on the top of the rack (1), an outlet pipe (4) is arranged on the left side of the rack (1), an oil inlet (6) is arranged on the top of the oil tank of the pump body (3), an oil outlet (7) is arranged on the bottom of the oil tank, the oil outlet (7) comprises a screw cap (16) arranged at the bottom end thereof, the screw cap (16) is internally provided with an oil storage groove (15), the screw cap (16) is fixedly connected with a scraping rod (18) at the top end thereof, the right side wall of the scraping rod (18) is a knife face (19), the screw cap (16) and the oil outlet (7) are in inverted "T" shape, and the screw cap (16) is coated with anticorrosive rubber.

2. The vacuum pump of claim 1, wherein: The rack (1) is provided with a pump body (3), an inlet pipe (2) is arranged on the top of the rack (1), an outlet pipe (4) is arranged on the left side of the rack (1), an oil inlet (6) is arranged on the top of the oil tank of the pump body (3), an oil outlet (7) is arranged on the bottom of the oil tank, the oil outlet (7) comprises a screw cap (16) arranged at the bottom end thereof, the screw cap (16) is internally provided with an oil storage groove (15), the screw cap (16) is fixedly connected with a scraping rod (18) at the top end thereof, the right side wall of the scraping rod (18) is a knife face (19), the screw cap (16) and the oil outlet (7) are in inverted "T" shape, and the screw cap (16) is coated with anticorrosive rubber.

3. The vacuum pump of claim 1, wherein: The outer wall of the top end of the screw cap (16) and the bottom end of the oil outlet (7) is processed with external threads (13), the external threads (13) are externally assembled with external bolts (14), the inner wall of the external bolts (14) is provided with sealing rings (17), and the oil outlet (7) and the screw cap (16) are connected and assembled through the external bolts (14).

4. The vacuum pump of claim 1, wherein: The knife face (19) is in abutment with the inner wall of the oil outlet (7), and the width of the scraping rod (18) is one eighth of the inner diameter of the oil outlet (7).

5. The vacuum pump of claim 1, wherein: The bottom end of the scraping rod (18) is provided with a socket (21), the inner wall of the socket (21) is processed with a cross-shaped insertion groove (20), the top edge of the screw cap (16) is welded with a welding block (23), the top of the welding block (23) is welded with a cross-shaped insertion column (22), the cross-shaped insertion column (22) is embeddedly matched with the cross-shaped insertion groove (20), and the scraping rod (18) is connected with the screw cap (16) through the cross-shaped insertion column (22).

6. The vacuum pump of claim 1, wherein: The bottom of the oil outlet (7) is provided with a bottom cover plate (8), the bottom cover plate (8) and the rack (1) are fixedly connected with a bolt (9), and the bottom cover plate (8) is located directly below the oil outlet (7).

7. The vacuum pump of claim 1, wherein: The rear end cover plate of the rack (1) is fixedly connected with a heat dissipation window (10), the rack (1) and the rear end cover plate of the rack (1) are fixedly connected with a fixing bolt (11), and the inner wall of the heat dissipation window (10) is fixedly connected with a heat dissipation fan (12).

8. The vacuum pump of claim 7, wherein: The outer wall of the heat dissipation window (10) is fixedly connected with a dustproof net (24), and the dustproof net (24) and the heat dissipation window (10) are fixedly connected with four groups of connecting bolts (25).

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