Dredging structure for oil outlet of micro-oil screw vacuum pump

Abstract

The utility model relates to the technical field of dredging equipment, in particular to a dredging structure for an oil outlet of a micro-oil screw vacuum pump, which comprises a round rod, a round groove is arranged at one end of the round rod, a suction mechanism is arranged at one end of the round rod in a matched manner, and a connecting groove is arranged inside the other end of the round rod. A plurality of placing holes are uniformly formed in the outer side wall of the other end of the round rod, the placing holes communicate with the connecting groove, a rectangular groove is formed in one inner side wall of the connecting groove, and one end of the interior of each placing hole is rotationally connected with a pushing rod through a shaft rod. According to the micro-oil screw vacuum pump, the suction mechanism is arranged at one end of the round rod in a matched mode, oil stain residues in the oil outlet of the micro-oil screw vacuum pump can be conveniently sucked by means of matched use of the suction mechanism and the pushing unit, the sucked oil stain residues can be conveniently sucked into the round groove to be stored, and the oil stain residues can be conveniently sucked into the round groove to be stored; and the cleaned oil stain residues are prevented from flowing into the micro-oil screw vacuum pump.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging equipment, in particular to a dredging structure for an oil outlet of a micro-oil screw vacuum pump. Background Art

[0002] A vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate air from a container to obtain a vacuum. Generally speaking, a vacuum pump is a device that uses various methods to improve, generate and maintain a vacuum in a closed space. The most common existing vacuum pump is the micro-oil screw vacuum pump. The existing micro-oil screw vacuum pump generates a lot of heat during operation, and requires oil to cool and lubricate its rotating parts. The oil outlet of the lubricating oil chamber of the vacuum pump is prone to accumulate oil stains and precipitated debris, and needs to be cleaned and dredged when the lubricating oil is replaced. However, the existing oil outlet dredging structure may cause residues to fall into the interior of the vacuum pump during the cleaning process, which may easily damage the vacuum pump. Utility Model Content

[0003] The utility model aims to provide a dredging structure for an oil outlet of a micro-oil screw vacuum pump.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A dredging structure for an oil outlet of a micro-oil screw vacuum pump comprises a round rod, one end of which is provided with a round groove, one end of which is equipped with a suction mechanism, the other end of which is provided with a connecting groove, the outer side wall of the other end of which is evenly provided with a plurality of placement holes, and the placement holes are connected with the connecting groove, an inner side wall of the connecting groove is provided with a rectangular groove, one end of the placement hole is rotatably connected with a push rod through an axial rod, the other end of the round rod is sleeved and fixed with a rubber sleeve, and an inner side wall of the rubber sleeve is fixedly connected to the outer side walls of one end of a plurality of push rods, the other end of the round rod is equipped with a push unit, and an inner side wall of the rectangular groove is evenly provided with a plurality of rectangular holes.

[0006] Furthermore, the pushing unit includes a motor 1, one end of the motor 1 is fixedly connected to an inner wall of the rectangular groove, and the output end of the motor 1 is fixedly connected to a rotating block, one end of the rotating block is fixedly connected to a screw rod 1, and the outer side of the screw rod 1 is screwed and connected to a moving block, the outer side of the moving block is evenly fixedly connected to a plurality of extrusion blocks, and one end of the extrusion block is wedge-shaped, the wedge-shaped side of the extrusion block is in extrusion contact with one end of the pushing rod, a conveying hole is provided on the rotating block, a connecting hole is provided at the middle position of the screw rod 1, the outer side wall of the rotating block is rotatably connected to a rotating shell, and the outer side wall of the rotating shell is evenly connected and fixed with a plurality of connecting shells, and one end of the connecting shell passes through the rectangular hole at the corresponding position and moves to the inside of the circular groove.

[0007] Furthermore, the outer diameter of the rotating block is the same as the outer diameter of the screw rod, and the outer diameter of the moving block is smaller than the inner diameter of the connecting groove.

[0008] Furthermore, the width of the interior of the placement hole is the same as the thickness of the push rod, and the thickness of the push rod is the same as the thickness of the extrusion block.

[0009] Furthermore, an inlet is provided at one end of the round rod, and the inlet corresponds to the connecting hole, an external threaded tube is fixedly sleeved on the outer side of one end of the round rod, the suction mechanism includes an internal threaded shell, the internal threaded shell is screwed together with the external threaded tube, an inner side wall of the internal threaded shell is fixedly connected with two limit plates, a moving rod is provided at one end of the internal threaded shell, and two limit holes are provided on the moving rod, the limit holes are slidably connected with the limit plates at corresponding positions, a piston is fixedly connected to one end of the moving rod, and the piston is in extrusion contact with the inner side wall of the circular groove.

[0010] Furthermore, a threaded hole is opened at the middle position of the moving rod, an inner side wall of the internal threaded shell is fixedly connected to the second motor, and the output end of the second motor is fixedly connected to the second screw rod, and the second screw rod is screwed into the threaded hole.

[0011] Furthermore, a retaining ring is fixedly connected to one end of the internal thread shell, and the outer diameter of the retaining ring is larger than the outer diameter of the internal thread shell.

[0012] Beneficial effects of the utility model:

[0013] 1. A suction mechanism is provided at one end of the round rod, and the suction mechanism and the pushing unit are used in combination to facilitate the suction of the oil residue inside the oil outlet of the micro-oil screw vacuum pump, and the sucked oil residue is conveniently sucked into the inside of the circular groove for storage, and by sucking and storing the oil residue, it is avoided that the oil residue under cleaning flows into the inside of the micro-oil screw vacuum pump, and when the other end of the round rod moves to an appropriate position, the pushing unit is used to rotate the multiple pushing rods, so that one end of the rubber sleeve expands and is connected with the micro-oil screw The rubber sleeve is squeezed and contacted with the inner wall of the oil outlet of the micro-oil screw vacuum pump. When the dredging structure of the oil outlet of the micro-oil screw vacuum pump is pulled out, the expanded rubber sleeve is used in conjunction with the push rod to scrape the inner wall of the oil outlet of the micro-oil screw vacuum pump from the inside to the outside, thereby facilitating the cleaning of the oil outlet of the micro-oil screw vacuum pump and preventing the oil stains and residues on the inner wall of the oil outlet of the micro-oil screw vacuum pump from re-entering the interior of the micro-oil screw vacuum pump, thereby ensuring the dredging effect of the oil outlet of the micro-oil screw vacuum pump and improving the practicability of the oil outlet of the micro-oil screw vacuum pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] Figure 1-3 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the round rod structure in the utility model;

[0017] Figure 5 It is a schematic diagram of the structure of the driving unit in the utility model;

[0018] Figure 6 It is a schematic diagram of the positional relationship between the rotating shell and the connecting shell in the utility model;

[0019] Figure 7 It is a schematic diagram of the structure of the suction mechanism in the utility model.

[0020] In the figure: 100, round rod; 101, inlet; 102, connecting groove; 103, placement hole; 104, rectangular groove; 105, round groove; 106, rectangular hole; 110, rubber sleeve; 120, external threaded pipe; 130, pushing rod; 140, pushing unit; 141, motor one; 142, rotating block; 143, conveying hole; 144, screw one; 145, connecting hole; 146, moving block; 147, extrusion block; 150, rotating shell; 151, connecting shell; 200, suction mechanism; 210, internal threaded shell; 220, motor two; 230, screw two; 240, limit plate; 250, moving rod; 251, threaded hole; 252, limit hole; 260, piston; 270, retaining ring. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-7As shown, a dredging structure for the oil outlet of a micro-oil screw vacuum pump comprises a round rod 100, a round groove 105 is provided at one end of the round rod 100, a suction mechanism 200 is provided at one end of the round rod 100, a connecting groove 102 is provided inside the other end of the round rod 100, a plurality of placement holes 103 are evenly provided on the outer side wall of the other end of the round rod 100, and the placement holes 103 are communicated with the connecting groove 102, a rectangular groove 104 is provided on an inner side wall of the connecting groove 102, one end of the inner side of the placement hole 103 is connected to a push rod 130 through a shaft, a rubber sleeve 110 is sleeved and fixed at the other end of the round rod 100, and an inner side wall of the rubber sleeve 110 is fixedly connected to the outer side wall of one end of the plurality of push rods 130, a pushing unit 140 is provided at the other end of the round rod 100, a plurality of rectangular holes 106 are evenly provided on an inner side wall of the rectangular groove 104, and when in use, the dredging structure for the oil outlet of the micro-oil screw vacuum pump is The dredging structure is inserted into the interior of the oil outlet of the micro-oil screw vacuum pump, and the suction mechanism 200 and the pushing unit 140 are used in combination to facilitate the suction of the oil residue inside the oil outlet of the micro-oil screw vacuum pump, and the sucked oil residue is conveniently sucked into the interior of the circular groove 105 for storage, and by sucking and storing the oil residue, the oil residue is prevented from flowing into the interior of the micro-oil screw vacuum pump after cleaning. When the other end of the round rod 100 moves to the appropriate position, the pushing unit 140 is used to rotate the multiple pushing rods 130, so that one end of the rubber sleeve 110 expands and is squeezed into contact with the inner wall of the oil outlet of the micro-oil screw vacuum pump. When the dredging structure of the oil outlet of the micro-oil screw vacuum pump is pulled out, the expanded rubber sleeve 110 is used in combination with the pushing rod 130 to facilitate the scraping of the inner wall of the oil outlet of the micro-oil screw vacuum pump from the inside to the outside, thereby facilitating the cleaning of the oil outlet of the micro-oil screw vacuum pump.

[0023] The pushing unit 140 includes a motor 141, one end of which is fixedly connected to an inner wall of the rectangular groove 104, and the output end of the motor 141 is fixedly connected to a rotating block 142, one end of the rotating block 142 is fixedly connected to a screw rod 144, and the outer side of the screw rod 144 is screwed and connected to a moving block 146, and the outer side of the moving block 146 is evenly fixedly connected to a plurality of extrusion blocks 147, and one end of the extrusion block 147 is wedge-shaped, and the wedge-shaped side of the extrusion block 147 is in extrusion contact with one end of the pushing rod 130, a conveying hole 143 is provided on the rotating block 142, and a connecting hole 145 is provided at the middle position of the screw rod 144, and the outer side wall of the rotating block 142 is rotatably connected to a rotating shell 150, and the outer side wall of the rotating shell 150 is evenly connected and fixed with a plurality of connecting holes 143 and 145. Shell 151, one end of the connecting shell 151 passes through the rectangular hole 106 at the corresponding position and moves to the inside of the circular groove 105, by starting the motor 141, the motor 141 is used to drive the screw 144 to rotate, and the screw 144 is screwed and connected with the moving block 146, so that the moving block 146 and the multiple extrusion blocks 147 are moved, and the moved extrusion block 147 is convenient for squeezing and pushing the push rod 130, so that the multiple push rods 130 are rotated, the outer diameter of the rotating block 142 is the same as the outer diameter of the screw 144, and the outer diameter of the moving block 146 is smaller than the inner diameter of the connecting groove 102, the width of the inside of the placement hole 103 is the same as the thickness of the push rod 130, and the thickness of the push rod 130 is the same as the thickness of the extrusion block 147.

[0024] An inlet 101 is provided at one end of the round rod 100, and the inlet 101 corresponds to the connecting hole 145. An external threaded tube 120 is fixedly sleeved on the outer side of one end of the round rod 100. The suction mechanism 200 includes an internal thread shell 210, which is screwed together with the external threaded tube 120. An inner side wall of the internal thread shell 210 is fixedly connected with two limit plates 240. A moving rod 250 is provided at one end of the internal thread shell 210, and two limit holes 252 are provided on the moving rod 250. The limit holes 252 are slidably connected with the limit plates 240 at corresponding positions. A piston 260 is fixedly connected at one end of the moving rod 250, and the piston 260 is in compression contact with the inner side wall of the circular groove 105. A threaded hole 251 is provided at the middle position of the moving rod 250. A motor 220 is fixedly connected to an inner side wall of the internal thread shell 210, and a screw 230 is fixedly connected to the output end of the motor 220. The second screw rod 230 is screwed together with the threaded hole 251, and the second motor 220 is started to drive the second screw rod 230 to rotate, and the second screw rod 230 is screwed together with the moving rod 250, and the limiting plate 240 is used in conjunction with the limiting hole 252 to limit the moving rod 250, so that the moving rod 250 and the piston 260 can move, and the moving piston 260 is used to suck the inside of the rotating shell 150, and then the rotating shell 150, the conveying hole 143 and the connecting hole 145 are used in conjunction to suck the inside of the inlet 101, so as to facilitate the suction of the oil residue inside the oil outlet of the micro-oil screw vacuum pump. A retaining ring 270 is fixedly connected to one end of the internal thread shell 210, and the outer diameter of the retaining ring 270 is larger than the outer diameter of the internal thread shell 210. The retaining ring 270 is used to prevent the oil residue from falling on the outside of the internal thread shell 210.

[0025] Working principle: When in use, the dredging structure of the oil outlet of the micro-oil screw vacuum pump is inserted into the inside of the oil outlet of the micro-oil screw vacuum pump, and the motor 220 is started to drive the screw 230 to rotate, and the screw 230 is screwed and connected with the moving rod 250, and the limiting plate 240 and the limiting hole 252 are used in conjunction with each other to limit the moving rod 250, so that the moving rod 250 and the piston 260 are moved, and the moving piston 260 is used to move the moving rod 250. The interior of the rotating shell 150 is sucked, and then the rotating shell 150, the conveying hole 143 and the connecting hole 145 are used together to facilitate the suction of the interior of the inlet 101, so as to facilitate the suction of the oil residue inside the oil outlet of the micro-oil screw vacuum pump, and the sucked oil residue is conveniently sucked into the interior of the circular groove 105 for storage, and by sucking and storing the oil residue, the oil residue under cleaning is prevented from flowing into the interior of the micro-oil screw vacuum pump, and when the other end of the round rod 100 moves to the appropriate position, by starting the motor 141, the motor 141 is used to drive the screw 144 to rotate, and the screw 144 is screwed and connected with the moving block 146, so that the moving block 146 and the multiple extrusion blocks 147 move, and the moved extrusion block 147 is convenient for squeezing and pushing the push rod 130, so that the multiple push rods 130 rotate, and then one end of the rubber sleeve 110 expands and is squeezed and contacted with the inner wall of the oil outlet of the micro-oil screw vacuum pump, when the micro-oil When the unblocking structure of the oil outlet of the screw vacuum pump is pulled out, the expanded rubber sleeve 110 is used in conjunction with the push rod 130 to scrape the inner wall of the oil outlet of the micro-oil screw vacuum pump from the inside to the outside, thereby facilitating the cleaning of the oil outlet of the micro-oil screw vacuum pump and preventing the oil stains and residues on the inner wall of the oil outlet of the micro-oil screw vacuum pump from re-entering the interior of the micro-oil screw vacuum pump, thereby ensuring the unblocking effect of the oil outlet of the micro-oil screw vacuum pump and improving the practicability of the oil outlet of the micro-oil screw vacuum pump.

[0026] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] The above contents are merely examples and explanations of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A dredging structure for an oil outlet of a micro-oil screw vacuum pump, comprising a round rod (100), characterized in that: A circular groove (105) is provided at one end of the round rod (100), a suction mechanism (200) is provided at one end of the round rod (100), a connecting groove (102) is provided inside the other end of the round rod (100), a plurality of placement holes (103) are evenly provided on the outer side wall of the other end of the round rod (100), and the placement holes (103) are connected to the connecting groove (102), and a rectangular groove (103) is provided on an inner side wall of the connecting groove (102). 4), one end of the placement hole (103) is rotatably connected to a push rod (130) via an axle rod, the other end of the round rod (100) is sleeved and fixed with a rubber sleeve (110), and an inner wall of the rubber sleeve (110) is fixedly connected to the outer wall of one end of a plurality of push rods (130), the other end of the round rod (100) is matched with a push unit (140), and an inner wall of the rectangular groove (104) is evenly provided with a plurality of rectangular holes (106).

2. The dredging structure for the oil outlet of a micro-oil screw vacuum pump according to claim 1 is characterized in that: The pushing unit (140) comprises a motor (141), one end of which is fixedly connected to an inner wall of the rectangular groove (104), and the output end of the motor (141) is fixedly connected to a rotating block (142), one end of the rotating block (142) is fixedly connected to a screw rod (144), and the outer side of the screw rod (144) is screwed and connected to a moving block (146), and the outer side of the moving block (146) is evenly fixedly connected to a plurality of extrusion blocks (147), and one end of the extrusion block (147) is wedge-shaped, and the extrusion blocks The wedge-shaped side of (147) is in compression contact with one end of the push rod (130), a conveying hole (143) is provided on the rotating block (142), a connecting hole (145) is provided at the middle position of the screw rod (144), the outer wall of the rotating block (142) is rotatably connected to a rotating shell (150), and the outer wall of the rotating shell (150) is evenly connected and fixed with multiple connecting shells (151), one end of the connecting shell (151) passes through the rectangular hole (106) at the corresponding position and moves to the inside of the circular groove (105).

3. The dredging structure for the oil outlet of a micro-oil screw vacuum pump according to claim 2 is characterized in that: The outer diameter of the rotating block (142) is the same as the outer diameter of the screw rod (144), and the outer diameter of the moving block (146) is smaller than the inner diameter of the connecting groove (102).

4. The dredging structure for the oil outlet of a micro-oil screw vacuum pump according to claim 1 is characterized in that: The width of the interior of the placement hole (103) is the same as the thickness of the push rod (130), and the thickness of the push rod (130) is the same as the thickness of the extrusion block (147).

5. The dredging structure for the oil outlet of a micro-oil screw vacuum pump according to claim 1 is characterized in that: An inlet (101) is provided at one end of the round rod (100), and the inlet (101) corresponds to the connecting hole (145); an external threaded tube (120) is sleeved and fixed on the outer side of one end of the round rod (100); the suction mechanism (200) comprises an internal threaded shell (210), the internal threaded shell (210) is screwed and connected to the external threaded tube (120); two limiting plates (240) are fixedly connected to an inner side wall of the internal threaded shell (210); a moving rod (250) is provided at one end of the internal threaded shell (210), and two limiting holes (252) are provided on the moving rod (250); the limiting holes (252) are slidably connected to the limiting plates (240) at corresponding positions; a piston (260) is fixedly connected to one end of the moving rod (250), and the piston (260) is in extrusion contact with the inner side wall of the circular groove (105).

6. The dredging structure for the oil outlet of a micro-oil screw vacuum pump according to claim 5 is characterized in that: A threaded hole (251) is provided at the middle position of the moving rod (250), a second motor (220) is fixedly connected to an inner side wall of the internal thread shell (210), and a second screw rod (230) is fixedly connected to the output end of the second motor (220), and the second screw rod (230) is screwed together with the threaded hole (251).

7. The dredging structure for the oil outlet of a micro-oil screw vacuum pump according to claim 5 is characterized in that: A retaining ring (270) is fixedly connected to one end of the internal thread shell (210), and the outer diameter of the retaining ring (270) is greater than the outer diameter of the internal thread shell (210).

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