External oil supply device for sewing machine

Abstract

The utility model relates to an external oil supply device for a sewing machine, which belongs to the technical field of sewing machines. The utility model comprises a sewing machine casing and a connecting base plate with a mounting hole, wherein the connecting base plate is arranged at one side of the sewing machine casing, a rotating plate is rotatably mounted on the top of the connecting base plate, a first oil storage tank and a second oil storage tank are arranged on the top of the rotating plate in sequence from right to left, a reflux joint is mounted on the first oil storage tank and the second oil storage tank, a limiting component for fixing the first oil storage tank and the second oil storage tank is arranged on the top of the rotating plate, a mounting seat is fixedly mounted on the top of the connecting base plate, a positioning component for positioning the rotating plate is arranged on the mounting seat, the external oil supply device for the sewing machine is provided with the first oil storage tank and the second oil storage tank, so that one can be used alternately when the other is cleaned, thereby ensuring continuous oil supply to the sewing machine casing, and the utility model is simple and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to an external oil supply device for sewing machines. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing material are interwoven or sewn together. The sewing machine can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, and products such as leather, plastic, and paper. When the sewing machine is working, it is necessary to continuously supply oil to the sewing machine to ensure lubrication and flexible operation.

[0003] The current application document with application number (CN201921067912.5) discloses an external oil supply device for a sewing machine, which includes an oil pump, an oil tank and an oil filter arranged outside the sewing machine casing; the oil pump is fixedly installed in the oil tank; the upper end of the oil filter is connected to the oil supply port of the sewing machine casing through an upper oil supply pipe; the lower end of the oil filter is connected to the oil tank through a lower oil supply pipe; the oil outlet of the sewing machine casing is connected to the oil tank through an oil return pipe. The external oil supply device for a sewing machine has the advantages of independent operation, convenient disassembly and assembly, and wide applicability.

[0004] Since the above-mentioned oil supply device is arranged outside, it will not interfere with the transmission in the sewing machine, so it has good independence and convenient maintenance. However, the above-mentioned oil supply device only has one oil tank. When the engine oil in the oil tank is used for a period of time, it will become turbid and produce impurities. At this time, the engine oil needs to be replaced. When replacing the engine oil, the oil tank also needs to be cleaned. When the oil tank is cleaned, the sewing machine cannot be supplied with oil, and production work cannot be carried out at this time. Utility Model Content

[0005] In order to overcome the technical defects of the prior art, the utility model provides an external oil supply device for a sewing machine, which is provided with a rotating plate, a first oil storage tank and a second oil storage tank. When the engine oil in the first oil storage tank becomes turbid and produces impurities after being used for a period of time, the engine oil needs to be replaced. Therefore, the user can rotate the rotating plate to switch the positions of the first oil storage tank and the second oil storage tank, so that one can be cleaned while the other can be used alternately, thereby ensuring continuous oil supply to the sewing machine casing. The utility model is simple and practical.

[0006] The technical solution adopted by the utility model is as follows: it comprises a sewing machine casing and a connecting base plate with a mounting hole, the connecting base plate is arranged on one side of the sewing machine casing, a rotating plate is rotatably installed on the top of the connecting base plate, a first oil storage tank and a second oil storage tank are arranged on the top of the rotating plate from right to left, a return joint is installed on the first oil storage tank and the second oil storage tank, a limiting component for fixing the first oil storage tank and the second oil storage tank is arranged on the top of the rotating plate, a mounting seat is fixedly installed on the top of the connecting base plate, a positioning component for positioning the rotating plate is arranged on the mounting seat, an oil pump is arranged on the top of the first oil storage tank, an oil extraction pipe is installed on the input end of the oil pump, an oil guide pipe is installed on the input end of the oil pump, one end of the oil guide pipe is connected to the sewing machine casing, an oil return pipe is installed on the sewing machine casing, one end of the oil return pipe is connected to the return joint on the first oil storage tank through a sealing joint, and a displacement component for driving the oil pump to move is installed on the top of the mounting seat.

[0007] Preferably, in order to facilitate the fixation of the first oil storage tank and the second oil storage tank through the mating baffle, the limiting assembly includes a mating baffle, the mating baffle is fixedly mounted on the top of the rotating plate, and a mounting plate with side grooves is fixedly mounted on the mating baffle.

[0008] Preferably, in order to drive the engaging and limiting clamping plate to move by means of a fixed screw rod, the number of the mounting plates is two, a fixed screw rod is rotatably mounted in a side groove on the mounting plate, and a engaging and limiting clamping plate is threadedly connected to the fixed screw rod.

[0009] Preferably, in order to drive the positioning rack to move by the micro-telescopic rod, the positioning assembly includes a linkage rack, the linkage rack is fixedly mounted on the outer walls on both sides of the rotating plate, a micro-telescopic rod is fixedly mounted on the outer wall of the mounting seat, a positioning rack is mounted on the output end of the micro-telescopic rod, and the positioning rack is meshed with the linkage rack.

[0010] Preferably, in order to prevent dust and impurities from entering the second oil storage tank, a sealing cover is provided on the top of the second oil storage tank and the return joint on the second oil storage tank.

[0011] Preferably, in order to increase the sealing performance of the oil extraction pipe after installation, a circular connecting plate is fixedly installed on the outer side wall of the oil extraction pipe, and a sealing ring is fixedly installed on the bottom of the circular connecting plate.

[0012] Preferably, in order to drive the lifting connection seat to move by the electric telescopic rod, the displacement assembly includes an electric telescopic rod, the electric telescopic rod is fixedly mounted on the top of the mounting seat, and the lifting connection seat is fixedly mounted on the top of the electric telescopic rod.

[0013] Preferably, in order to install the oil pump through the mounting screw, the oil pump is arranged on the top of the lifting connection seat, and threaded holes are provided on the lifting connection seat and the oil pump, and the mounting screw is screwed into the threaded hole.

[0014] The beneficial effects of the utility model are:

[0015] The utility model is provided with a rotating plate, a first oil storage tank and a second oil storage tank. When the engine oil in the first oil storage tank becomes turbid and produces impurities after being used for a period of time, the engine oil needs to be replaced. Therefore, the user can rotate the rotating plate to switch the positions of the first oil storage tank and the second oil storage tank, so that one can be cleaned while the other can be used alternately, thereby ensuring continuous oil supply to the sewing machine casing. The utility model is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the connection base plate in the utility model.

[0018] Figure 3 It is an exploded schematic diagram of the first oil storage tank, the second oil storage tank and the connecting bottom plate in the utility model.

[0019] Figure 4 It is a schematic diagram of the connection between the lifting connecting seat and the oil pump in the utility model.

[0020] Figure 5 for Figure 4 A magnified schematic diagram of center A.

[0021] Figure 6 It is a schematic diagram of the installation of the sealing ring in the utility model.

[0022] Explanation of the accompanying drawings: In the figure: 1, sewing machine casing; 2, connecting bottom plate; 3, rotating plate; 4, first oil storage tank; 5, second oil storage tank; 6, reflux joint; 7, mounting seat; 8, oil pump; 9, oil extraction pipe; 10, oil guide pipe; 11, oil return pipe; 12, sealing joint; 13, matching baffle; 14, mounting plate; 15, fixing screw rod; 16, matching limit clamp plate; 17, linkage rack; 18, micro telescopic rod; 19, positioning rack; 20, sealing cover; 21, circular connecting plate; 22, sealing ring; 23, electric telescopic rod; 24, lifting connecting seat; 25, mounting screw. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-6 As shown, this embodiment provides an external oil supply device for a sewing machine.

[0025] The invention comprises a sewing machine housing 1 and a connecting base plate 2 with a mounting hole, wherein the connecting base plate 2 is arranged on one side of the sewing machine housing 1, a rotating plate 3 is rotatably mounted on the top of the connecting base plate 2, a first oil storage tank 4 and a second oil storage tank 5 are arranged on the top of the rotating plate 3 from right to left, a return joint 6 is installed on the first oil storage tank 4 and the second oil storage tank 5, and the oil refluxed by the return pipe can enter the first oil storage tank 4 or the second oil storage tank 5 through the return joint 6, and a limiting component for fixing the first oil storage tank 4 and the second oil storage tank 5 is arranged on the top of the rotating plate 3 A mounting seat 7 is fixedly installed on the top of the connecting base plate 2, and a positioning component for positioning the rotating plate 3 is arranged on the mounting seat 7. An oil pump 8 is arranged on the top of the first oil storage tank 4, and an oil extraction pipe 9 is installed on the input end of the oil pump 8. An oil guide pipe 10 is installed on the input end of the oil pump 8, one end of the oil guide pipe 10 is connected to the sewing machine casing 1, and an oil return pipe 11 is installed on the sewing machine casing 1. One end of the oil return pipe 11 is connected to the reflux joint 6 on the first oil storage tank 4 through a sealing joint 12, and a displacement component for driving the oil pump 8 to move is installed on the top of the mounting seat 7.

[0026] The limiting assembly includes a fitting baffle 13, which is fixedly mounted on the top of the rotating plate 3. A mounting plate 14 with side grooves is fixedly mounted on the fitting baffle 13. There are two mounting plates 14. A fixing screw 15 is rotatably mounted in the side groove on the mounting plate 14. A fitting limiting clamp 16 is threadedly connected to the fixing screw 15. After the first oil storage tank 4 and the second oil storage tank 5 are rotated and switched, the user can rotate the fixing screw 15, thereby driving the fitting limiting clamp 16 to move to release the fixation of the first oil storage tank 4. After the first oil storage tank 4 has been cleaned and dried, the user can place the first oil storage tank 4 on the rotating plate 3, and through the rotation of the fixing screw 15, the fitting limiting clamp 16 clamps the first oil storage tank 4, and at the same time, the sealing cover 20 removed from the second oil storage tank 5 is placed on the first oil storage tank 4.

[0027] The positioning assembly includes a linkage rack 17, which is fixedly mounted on the outer side walls of the rotating plate 3 on both sides. A micro-telescopic rod 18 is fixedly mounted on the outer side wall of the mounting seat 7. A positioning rack 19 is mounted on the output end of the micro-telescopic rod 18. The positioning rack 19 is meshed with the linkage rack 17. Since the linkage rack 17 is mounted on both sides of the rotating plate 3, after the rotating plate 3 rotates, the positioning rack 19 can be driven by the micro-telescopic rod 18 to mesh with the linkage rack 17 to fix the rotating plate 3.

[0028] The top of the second oil storage tank 5 and the return joint 6 on the second oil storage tank 5 are both sleeved with a sealing cover 20. When the first oil storage tank 4 is in use, the user can put the sealing cover 20 on the second oil storage tank 5 and then sleeve it on the first oil storage tank 4. A circular connecting plate 21 is fixedly installed on the outer wall of the oil extraction pipe 9, and a sealing ring 22 is fixedly installed on the bottom of the circular connecting plate 21. The sealing is ensured by the sealing cover 20. The displacement component includes an electric telescopic rod 23, which is fixedly installed on the top of the mounting seat 7. A lifting connection seat 24 is fixedly installed on the top of the electric telescopic rod 23. The oil pump 8 is arranged on the top of the lifting connection seat 24. The lifting connection seat 24 and the oil pump 8 are both provided with threaded holes. The mounting screw 25 is screwed into the threaded hole. The lifting connection seat 24, the oil pump 8 and the oil extraction pipe 9 can be driven to rise by the electric telescopic rod 23, so that the oil extraction pipe 9 can be raised and lowered conveniently.

[0029] When the utility model is in use, a sealing ring 22 is provided at the bottom of the circular connecting plate 21, and the sealing ring 22 is tightly fitted with the top of the first oil storage tank 4, which increases the sealing performance after the oil extraction pipe 9 is connected. When the sewing machine casing 1 is supplied with oil, the user can operate the oil pump 8 and extract the oil in the first oil storage tank 4 through the oil extraction pipe 9, so that the extracted oil can enter the sewing machine casing 1 through the oil guide pipe 10 to lubricate the inside of the sewing machine casing 1, and then the oil can flow back to the first oil storage tank 4 through the oil return pipe 11. In the oil storage tank 4, the engine oil in the first oil storage tank 4 will become turbid and produce impurities after being used for a period of time, so the engine oil needs to be replaced. When replacing the engine oil, the user can make the electric telescopic rod 23 work and drive the lifting connection seat 24 to rise, thereby driving the oil pump 8 and the oil extraction pipe 9 to rise. When the oil extraction pipe 9 rises, it can drive the circular connecting plate 21 and the sealing ring 22 to rise until the oil extraction pipe 9 rises to a point that does not affect the rotation of the first oil storage tank 4. After separation, the user pours out the engine oil in the first oil storage tank 4. One end of the return pipe is connected to the return joint 6 on the first oil storage tank 4 through the sealing joint 12, so the return pipe and the return joint 6 on the first oil storage tank 4 are easy to disassemble. Then the user can first drive the positioning rack 19 away from the linkage rack 17 by the micro telescopic rod 18 to release the limit fixation of the rotating plate 3. When the rotating plate 3 rotates, the first oil storage tank 4 and the second oil storage tank 5 can be changed. After the second oil storage tank 5 rotates, the user can connect the return pipe to the return joint 6 on the second oil storage tank 5 through the sealing joint 12. Then, the engine oil is injected into the second oil storage tank 5. When operating the second oil storage tank 5, the sealing cover 20 needs to be removed, and then the user can use the electric telescopic rod 23 to reset the oil extraction pipe 9 to the inside of the second oil storage tank 5. After the oil extraction pipe 9 is reset, the sealing ring 22 can fit with the top of the second oil storage tank 5, and finally, one end of the return pipe is connected to the return joint 6 on the second oil storage tank 5, so that one can be used alternately when cleaning, thereby ensuring continuous oil supply to the sewing machine casing 1.

[0030] The above shows and describes the basic principles and main features of the invention and the advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. An external oil supply device for a sewing machine, comprising a sewing machine housing (1) and a connecting base plate (2) with a mounting hole, characterized in that: The connecting base plate (2) is arranged on one side of the sewing machine housing (1); a rotating plate (3) is rotatably mounted on the top of the connecting base plate (2); a first oil storage tank (4) and a second oil storage tank (5) are respectively arranged on the top of the rotating plate (3) from right to left; a return joint (6) is installed on the first oil storage tank (4) and the second oil storage tank (5); a limiting component for fixing the first oil storage tank (4) and the second oil storage tank (5) is arranged on the top of the rotating plate (3); a mounting seat (7) is fixedly mounted on the top of the connecting base plate (2); and a stopper (6) is arranged on the mounting seat (7) for fixing the rotating plate (3). A positioning assembly for positioning a movable plate (3); an oil pump (8) is arranged on the top of the first oil storage tank (4); an oil extraction pipe (9) is installed on the input end of the oil pump (8); an oil guide pipe (10) is installed on the input end of the oil pump (8); one end of the oil guide pipe (10) is connected to the sewing machine housing (1); a return oil pipe (11) is installed on the sewing machine housing (1); one end of the return oil pipe (11) is connected to the return joint (6) on the first oil storage tank (4) through a sealing joint (12); and a displacement assembly for driving the oil pump (8) to move is installed on the top of the mounting seat (7).

2. The external oil supply device for a sewing machine according to claim 1, characterized in that: The limiting assembly comprises a fitting baffle (13), wherein the fitting baffle (13) is fixedly mounted on the top of the rotating plate (3), and a mounting plate (14) with a side groove is fixedly mounted on the fitting baffle (13).

3. The external oil supply device for a sewing machine according to claim 2, characterized in that: The number of the mounting plates (14) is two, and a fixed screw rod (15) is rotatably mounted in a side groove on the mounting plate (14), and a matching limiting clamping plate (16) is threadedly connected to the fixed screw rod (15).

4. The external oil supply device for a sewing machine according to claim 1, characterized in that: The positioning assembly comprises a linkage rack (17), wherein the linkage rack (17) is fixedly mounted on the outer side walls of both sides of the rotating plate (3), a miniature telescopic rod (18) is fixedly mounted on the outer side wall of the mounting seat (7), a positioning rack (19) is mounted on the output end of the miniature telescopic rod (18), and the positioning rack (19) is meshed with the linkage rack (17).

5. The external oil supply device for a sewing machine according to claim 1, characterized in that: The top of the second oil storage tank (5) and the return joint (6) on the second oil storage tank (5) are both provided with sealing covers (20).

6. The external oil supply device for a sewing machine according to claim 1, characterized in that: A circular connecting plate (21) is fixedly mounted on the outer wall of the oil extraction pipe (9), and a sealing ring (22) is fixedly mounted on the bottom of the circular connecting plate (21).

7. The external oil supply device for a sewing machine according to claim 1, characterized in that: The displacement assembly comprises an electric telescopic rod (23), wherein the electric telescopic rod (23) is fixedly mounted on the top of the mounting seat (7), and a lifting connection seat (24) is fixedly mounted on the top of the electric telescopic rod (23).

8. The external oil supply device for a sewing machine according to claim 7, characterized in that: The oil pump (8) is arranged on the top of the lifting connection seat (24), and threaded holes are arranged on the lifting connection seat (24) and the oil pump (8), and a mounting screw (25) is screwed into the threaded hole.

Images