Electric push rod structure

Abstract

The present invention relates to the field of push rod technology, and specifically to an electric push rod structure, including an equipment body, a first coupler, a second coupler and a third coupler, wherein the first coupler and the second coupler and the third coupler can be replaced with each other, a bottom cavity is arranged at the bottom of the equipment body, a motor is arranged inside the bottom cavity, a first coupler is arranged on the motor, a telescopic push rod is arranged inside the equipment body, and through the arrangement of mechanisms such as a sleeve, when the telescopic push rod is in use, a scraper will first scrape and clean the surface of the telescopic push rod to prevent dust and other external impurities from adhering to the surface of the telescopic push rod and affecting the use of the entire push rod, and when the telescopic push rod needs maintenance, at this time, under the push of magnetic force, the scraping sponge will contact the surface of the telescopic push rod and evenly apply a lubricating curing agent to the surface of the telescopic push rod.

Description

Technical Field

[0001] The invention relates to the technical field of push rods, in particular to an electric push rod structure. Background Art

[0002] A push rod is an electric drive device that converts the rotational motion of an electric motor into linear reciprocating motion of a push rod. This conversion mechanism makes magnetic couplings widely used in various industrial and life fields. Magnetic couplings use magnetic fields to transmit power, and there is no direct mechanical connection between the inner and outer rotors, thus avoiding problems such as wear, vibration and fatigue in traditional mechanical transmissions.

[0003] The magnetic coupling push rod is stable and precise, so it is mostly used on precision equipment. However, the existing magnetic coupling push rod lacks a cleaning device inside. When the magnetic coupling push rod is used outside the precision equipment, the extended push rod part will come into contact with the outside air. If there is a lot of dust in the external environment, the surface of the push rod will usually be stained with dust and other impurities after long-term use. Although an oil seal is provided at the end of the existing push rod, if these impurities are not cleaned, the push rod will continue to accumulate dust on the oil seal when it retracts. When a lot of dust and impurities accumulate on the surface of the oil seal, the friction between the oil seal and the push rod will increase, which may cause the entire push rod to fail. The push rod is stuck. When the push rod is stuck, it will affect the pushing effect of the magnetic coupling push rod, thereby affecting the use of the entire precision equipment. At the same time, the existing push rod does not have an automatic maintenance device. When the push rod is maintained, it is necessary to manually apply lubricant to the surface of the push rod, which is time-consuming and labor-intensive, affecting the use efficiency of the entire push rod. At the same time, the existing magnetic coupling push rod does not have a cooling mechanism inside. When the magnetic coupling push rod is used at high power for a long time, it may cause high temperature inside the push rod. High temperature may cause the permanent magnet material of the magnetic coupling to weaken, resulting in a decrease in torque transmission capacity, which cannot meet the normal load requirements of the equipment and affects the use effect of the push rod. Summary of the invention

[0004] The purpose of the present invention is to provide an electric push rod structure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric push rod structure, comprising a device body, a first coupler, a second coupler and a third coupler, the first coupler and the second coupler and the third coupler can be replaced with each other, a bottom cavity is arranged at the bottom of the device body, a motor is arranged inside the bottom cavity, a first coupler is arranged on the motor, a telescopic push rod is arranged inside the device body, a heat dissipation sleeve is sleeved on the outside of the bottom cavity, a circulation box is arranged outside the bottom cavity, a heat exchange coil is connected to the circulation box, a heat conduction fin is fixedly connected to the outer wall of the heat exchange coil, and outer boxes are fixedly connected to both sides of the heat dissipation sleeve;

[0006] The cooling mechanism cools down the interior of the bottom chamber to prevent the use of the magnetic coupling push rod from being affected by excessive temperature;

[0007] The maintenance mechanism is arranged on the main body of the equipment and applies lubricating oil to the surface of the telescopic push rod for maintenance.

[0008] Preferably, the cooling mechanism comprises a spray barrel arranged inside the outer box, the inner side wall of the spray barrel is slidably connected with a push rod, one end of the spray barrel away from the push rod is connected with an injection pipe, and a plurality of nozzles are arranged on the injection pipe.

[0009] Preferably, a slide rail is provided inside the outer box, the inner side wall of the slide rail is slidably connected with a pressure plate, the pressure plate is connected to the end of the push rod, the inner side wall of the slide rail is provided with a tension spring, the other end of the tension spring is connected to the pressure plate.

[0010] Preferably, the interior of the spray tube is connected with an air extraction square tube and a liquid extraction tube, and the interiors of the air extraction square tube and the liquid extraction tube are slidably connected with a baffle, and the baffle is respectively provided with an inner hole and an outer hole, and an electric telescopic rod is fixedly connected to the outer wall of the air extraction square tube, and one end of the electric telescopic rod away from the air extraction square tube is fixedly connected to the outer wall of the baffle, and the interior of the liquid extraction tube is connected with a suction pipe, and a water tank is provided on the outer wall of the equipment body, and one end of the suction pipe away from the liquid extraction tube is connected to the interior of the water tank.

[0011] Preferably, the maintenance mechanism includes a sleeve box arranged on the equipment body, the interior of the sleeve box is fixedly connected to an outer ring, scraper grooves are provided on both sides of the outer ring, the inner side wall of the scraper groove is slidably connected to the scraper, the scraper groove is provided with a pressure spring, the other end of the pressure spring is connected to the scraper, and a trigger magnet is fixedly connected to the outer side wall of the scraper, and the trigger magnet slides through to the outside of the sleeve.

[0012] Preferably, a plurality of inner grooves are provided on the side of the outer ring away from the trigger magnet, the inner side walls of the plurality of inner grooves are slidably connected with a scraping sponge, a pressing spring is provided inside the plurality of inner grooves, the other end of the pressing spring is connected to the scraping sponge, a contact magnet is fixedly connected to the outer side wall of the scraping sponge, the contact magnet slides through to the outside of the box, and bottom magnetic blocks are provided on both sides of the two scraping sponges.

[0013] Preferably, a liquid storage box is provided inside the box, and mounting parts are fixedly connected on both sides of the liquid storage box, and a driving plate is slidably connected to the inner wall of the mounting part, and lifting magnets are fixedly connected on both sides of the driving plate, and the magnetic poles of the lifting magnets are the same as those of the bottom magnetic blocks, and a return spring is provided inside the mounting part, and the other end of the return spring is connected to the driving plate, and a sliding tube is provided on the outer wall of the driving plate, and a liquid inlet hole is opened on the sliding tube, and the sliding tube slides through the interior of the liquid storage box, and one end of the sliding tube located inside the liquid storage box is sealed, and the end of the sliding tube away from the liquid inlet hole is connected to a bottom contact piece, and a through hole is provided at the bottom of the bottom contact piece.

[0014] Preferably, a ring is fixedly sleeved on the outer wall of the telescopic push rod, and pressure rods are provided on both sides of the ring. The pressure rod is provided with an electromagnet, and the magnetic poles of the electromagnet are respectively the same as the contact magnet and opposite to the trigger magnet. The end of the pressure rod away from the ring slides through the interior of the outer box and contacts the pressure plate.

[0015] Preferably, the heat dissipation sleeve is internally connected with a plurality of circulation branches, the ends of the plurality of circulation branches are commonly connected with a circulation main pipe, a cooling box is arranged on the outer wall of the water storage tank, and the circulation main pipe and the cooling box are connected with each other.

[0016] Preferably, a vent is provided on the outer side wall of the outer box, an electric push slide rod is provided on the outer side wall of the outer box, and a covering plate is provided at the end of the electric push slide rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the arrangement of the outer box and the heat exchange coil and other mechanisms, the heat exchange coil will perform water cooling on the heat generated by the first coupler and the motor and other mechanisms in the bottom cavity. While the heat exchange coil is exchanging heat and cooling, the cooling mechanism in the outer box will also blow air on the surface of the heat-conducting fins, so that the heat-conducting fins can conduct the heat exchanged by the heat exchange coil, thereby improving the heat exchange effect of the heat exchange coil. If the first coupler and the motor are used at high power, the outer box will also spray cooling water on the surface of the heat-conducting fins to cool the heat-conducting fins, so that the heat-conducting fins can conduct the heat carried by the coolant in the heat exchange coil more quickly, thereby further improving the cooling effect of the heat exchange coil, thereby ensuring the cooling effect of the entire equipment and preventing the entire equipment from overheating when in use.

[0019] 2. Through the setting of the sleeve and other mechanisms, when the telescopic push rod is in use, the scraper will first scrape and clean the surface of the telescopic push rod to prevent dust and other external impurities from adhering to the surface of the telescopic push rod and affecting the use of the entire push rod. When the telescopic push rod needs maintenance, the scraping sponge will contact the surface of the telescopic push rod under the push of magnetic force, and evenly apply the lubricating curing agent to the surface of the telescopic push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the device body and the bottom cavity in the exploded state of the present invention;

[0021] Figure 2 It is a schematic diagram of the device body and the external mechanism of the bottom cavity of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the first coupler, the second coupler and the third coupler of the present invention;

[0023] Figure 4 Schematic diagram of the internal structure of the first coupler, the second coupler and the third coupler of the present invention;

[0024] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 6 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 7 It is a schematic diagram of the local structure of the present invention Figure 1 ;

[0027] Figure 8 It is a schematic diagram of the local structure of the present invention Figure 2 ;

[0028] Fig. 9 It is a side structural schematic diagram of the present invention;

[0029] Fig.10 for Fig. 9 A magnified view of middle;

[0030] Fig.11 It is a schematic diagram of the local structure of the present invention Figure 3 ;

[0031] Fig.12 It is a schematic diagram of the local structure of the present invention Figure 4 ;

[0032] Fig.13 for Fig.12 Enlarged view of middle B;

[0033] Fig.14 It is a schematic diagram of the planar structure of the present invention;

[0034] Fig.15 The internal structure of the box in the present invention is shown in FIG. Figure 1 ;

[0035] Fig.16 The internal structure of the kit of the present invention is shown in FIG. Figure 2 ;

[0036] Fig.17 It is a schematic diagram of the ring structure of the present invention;

[0037] Fig.18 It is a schematic diagram of the overall external structure of the present invention;

[0038] Fig.19 It is a schematic diagram of the structure inside the downward use kit of the present invention.

[0039] In the attached drawings, the parts represented by the reference numerals are as follows: 1. Equipment body; 2. Telescopic push rod; 3. Bottom cavity; 4. Heat exchange coil; 5. Heat conducting fin; 6. Circulation box; 7. Outer box; 8. Ring; 9. Pressure rod; 10. Box; 11. Third coupler; 12. Heat dissipation sleeve; 13. Water storage tank; 14. Cooling box; 15. Circulation main pipe; 16. Suction pipe; 17. Circulation branch pipe; 18. Spray gun; 19. Spray pipe; 20. Spray head; 21. Press plate; 22. Push rod; 23. Tension spring; 24. Liquid extraction pipe; 25. Square exhaust pipe; 26. Electric telescopic rod; 27. Baffle; 28. Outer hole; 29, inner hole; 30, outer ring; 31, electromagnet; 32, trigger magnet; 33, contact magnet; 34, liquid storage box; 35, mounting part; 36, second coupler; 37, return spring; 38, drive plate; 39, slide tube; 40, liquid inlet hole; 41, bottom contact piece; 42, through hole; 43, scraping sponge; 44, scraper; 45, bottom magnetic block; 46, inner groove; 47, pressing spring; 48, scraper slide groove; 49, pressure spring; 50, vent; 51, cover plate; 52, electric push slide rod; 53, first coupler; 54, motor; 55, lifting magnet. 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: Please refer to Figure 1 - Fig.17 An electric push rod structure includes a device body 1, a first coupler 53, a second coupler 36 and a third coupler 11. The first coupler 53, the second coupler 36 and the third coupler 11 can be replaced with each other. A bottom cavity 3 is arranged at the bottom of the device body 1, a motor 54 is arranged inside the bottom cavity 3, and the first coupler 53 is arranged on the motor 54. A telescopic push rod 2 is arranged inside the device body 1, and a heat dissipation sleeve 12 (such as Figure 7 As shown, a circulation box 6 is arranged outside the bottom cavity 3 (as shown Figure 6 As shown, the circulation box 6 is connected with a heat exchange coil 4, and the outer wall of the heat exchange coil 4 is fixedly connected with a heat conducting fin 5. Both sides of the heat dissipation sleeve 12 are fixedly connected with an outer box 7, and a cooling mechanism is used to cool the inside of the bottom cavity 3 to prevent the use of the magnetic coupling push rod from being affected by excessive temperature. The cooling mechanism includes a spray barrel 18 (combined with Figure 7 and Figure 8 ), the inner side wall of the spray barrel 18 is slidably connected with a push rod 22, and the end of the spray barrel 18 away from the push rod 22 is connected with an injection pipe 19, and a plurality of nozzles 20 are arranged on the injection pipe 19. A slide rail is provided inside the outer box 7, and a pressure plate 21 is slidably connected with the inner side wall of the slide rail, and the pressure plate 21 is connected to the end of the push rod 22. A tension spring 23 is provided on the inner side wall of the slide rail, and the other end of the tension spring 23 is connected to the pressure plate 21. The interior of the spray barrel 18 is connected with an air extraction square tube 25 and a liquid extraction tube 24, and a baffle 27 (such as Fig.10 As shown in the figure, the baffle 27 is respectively provided with an inner hole 29 and an outer hole 28, an electric telescopic rod 26 is fixedly connected to the outer wall of the air extraction square tube 25, and one end of the electric telescopic rod 26 away from the air extraction square tube 25 is fixedly connected to the outer wall of the baffle 27, the interior of the liquid extraction tube 24 is connected with a suction tube 16, and a water storage tank 13 is provided on the outer wall of the equipment body 1, and one end of the suction tube 16 away from the liquid extraction tube 24 is connected to the interior of the water storage tank 13.

[0042] In this embodiment, when in use, the operator can turn on the motor 54 and the first coupler 53, and use the magnetic field of the first coupler 53 to transmit power, so that the telescopic push rod 2 can move up and down. (This is the prior art and will not be over-elaborated). When the motor 54 and the first coupler 53 inside the bottom cavity 3 drive the entire telescopic push rod 2 for use, heat will be generated. At this time, the operator can turn on the circulation box 6 to allow the coolant in the heat exchange coil 4 to circulate and exchange heat with the surface of the bottom cavity 3, so as to cool the bottom cavity 3. While the heat exchange coil 4 circulates and exchanges heat, the heat conducting fins 5 can conduct the heat of the coolant in the heat exchange coil 4 to cool the coolant, thereby improving the heat exchange efficiency of the coolant in the heat exchange coil 4.

[0043] Example 2: Please refer to Figure 1 - Fig.19 This embodiment further describes the first embodiment. The maintenance mechanism is arranged on the device body 1, and lubricating oil is applied to the surface of the telescopic push rod 2 for maintenance. The maintenance mechanism includes a sleeve 10 arranged on the device body 1, and the inner part of the sleeve 10 is fixedly connected with an outer ring 30, and both sides of the outer ring 30 are provided with a scraper slide groove 48 (combined with Fig.11 and Fig.15 ), the inner wall of the scraper slot 48 is slidably connected with the scraper 44, the scraper slot 48 is provided with a pressure spring 49, the other end of the pressure spring 49 is connected to the scraper 44, the outer wall of the scraper 44 is fixedly connected with a trigger magnet 32, the trigger magnet 32 ​​slides through the outside of the sleeve 10, and the outer ring 30 is provided with a plurality of inner grooves 46 (combined with Fig.14 and Fig.16 ), the inner side walls of the multiple inner grooves 46 are slidably connected with a scraping sponge 43, the interiors of the multiple inner grooves 46 are provided with a pressing spring 47, the other end of the pressing spring 47 is connected to the scraping sponge 43, the outer side wall of the scraping sponge 43 is fixedly connected with a contact magnet 33, the contact magnet 33 slides through the outside of the sleeve 10, the two sides of the two scraping sponges 43 are provided with bottom magnetic blocks 45, the interior of the sleeve 10 is provided with a liquid storage box 34, and the two sides of the liquid storage box 34 are fixedly connected with mounting parts 35 (such as Fig.13As shown in the figure, the inner wall of the mounting member 35 is slidably connected with a driving plate 38, and both sides of the driving plate 38 are fixedly connected with a lifting magnet 55, and the magnetic pole of the lifting magnet 55 is the same as the bottom magnetic block 45. A reset spring 37 is arranged inside the mounting member 35, and the other end of the reset spring 37 is connected to the driving plate 38. A sliding tube 39 is arranged on the outer wall of the driving plate 38, and a liquid inlet hole 40 is opened on the sliding tube 39. The sliding tube 39 slides through the interior of the liquid storage box 34, and the sliding tube 39 is located in the liquid storage box 34. One end of the interior is sealed, and the end of the sliding tube 39 away from the liquid inlet hole 40 is connected to a bottom contact piece 41, and a through hole 42 is provided at the bottom of the bottom contact piece 41. A collar 8 is fixedly sleeved on the outer wall of the telescopic push rod 2, and pressure rods 9 are provided on both sides of the collar 8. The pressure rod 9 is provided with an electromagnet 31, and the magnetic poles of the electromagnet 31 are respectively the same as the contact magnet 33 and opposite to the trigger magnet 32. The end of the pressure rod 9 away from the collar 8 slides through the interior of the outer box 7 and contacts the pressure plate 21 (combined with Figure 8 and Fig.11 ), the heat dissipation sleeve 12 is internally connected to a plurality of circulation branches 17 (such as Figure 7 As shown in FIG. 1 ), the ends of the plurality of circulation branches 17 are connected to a circulation main pipe 15, a cooling box 14 is provided on the outer wall of the water storage tank 13, the circulation main pipe 15 and the cooling box 14 are connected to each other, and a vent 50 (as shown in FIG. 1 ) is provided on the outer wall of the outer box 7. Fig.18 As shown in the figure, an electric push slide bar 52 is provided on the outer side wall of the outer box 7, and a covering plate 51 is provided at the end of the electric push slide bar 52.

[0044] During the reciprocating use of the telescopic push rod 2, the collar 8 will drive the pressure rod 9 to reciprocate into the outer box 7, and the end of the pressure rod 9 will intermittently contact and push the pressure plate 21. When the pressure plate 21 is intermittently pushed, it will cooperate with the tension spring 23 to make the pressure plate 21 reciprocate in the outer box 7. When the pressure plate 21 reciprocates in the outer box 7, it will push the push rod 22 to reciprocate in the spray barrel 18. When the push rod 22 reciprocates in the spray barrel 18, it will The air extraction square tube 25 draws the external air into the spray barrel 18, and sprays it to the outside of the bottom cavity 3 through the spray pipe 19 and the multiple spray heads 20, so as to cool the heat-conducting fins 5, so that the heat-conducting fins 5 can more efficiently conduct the heat carried by the coolant in the heat exchange coil 4, and further improve the heat exchange efficiency of the heat exchange coil 4. When the motor 54 and the first coupler 53 are used at high power and generate a lot of heat, the simple spray heat exchange cannot cool down the temperature. At this time, the operator can use the electric telescopic rod 26 The baffle 27 is retracted to move the baffle plate 27 upward. When the baffle plate 27 moves upward, the inner hole 29 originally located in the air extraction square tube 25 is moved to the outside of the air extraction square tube 25, allowing the outer hole 28 to enter the liquid extraction tube 24. When the inner hole 29 moves to the outside of the air extraction square tube 25, the unopened part of the baffle plate 27 blocks the air extraction square tube 25, so that the nozzle 18 no longer sprays air. When the outer hole 28 enters the liquid extraction tube 24, under the above principle, when the push rod 22 enters the nozzle 18, the push rod 22 is pushed into the nozzle 18. When reciprocating, the liquid extraction pipe 24 will extract the water in the water tank 13 into the inside of the spray barrel 18 through the suction pipe 16, and then spray it onto the surface of the bottom cavity 3 through the jet pipe 19 and the nozzle 20, so as to spray water to cool the heat-conducting fins 5. By lowering the temperature of the heat-conducting fins 5, the heat of the coolant in the heat exchange coil 4 can be more efficiently conducted away, so that the temperature of the coolant is lower and the heat exchange effect is better, thereby meeting the cooling requirements of the motor 54 and the first coupler 53 under high-power use.

[0045] When the telescopic push rod 2 reciprocates, the scraper 44 will contact the surface of the telescopic push rod 2, scrape and clean the surface of the telescopic push rod 2, and prevent the surface of the telescopic push rod 2 from carrying impurities. During use, when the telescopic push rod 2 needs to be maintained, the operator can energize the electromagnet 31 to make the electromagnet 31 magnetic. Since the magnetic poles of the electromagnet 31 and the trigger magnet 32 ​​are opposite, under the action of the attractive magnetic force, the trigger magnets 32 on both sides of the outer ring 30 will overcome the elastic force of the corresponding pressure springs 49 respectively, and drive the two scrapers 44 to move to the outside of the outer ring 30 and no longer contact the surface of the telescopic push rod 2. Since the magnetic poles of the contact magnet 33 and the electromagnet 31 are the same, under the action of the repulsive magnetic force, the contact magnet 33 will overcome the elastic force of the pressing spring 47 and push the scraping sponge 43 to move toward the middle of the outer ring 30. When the two scraping sponges 43 are closed toward the middle of the outer ring 30, they will contact the surface of the telescopic push rod 2. When the scraping sponge 43 is closed toward the middle of the outer ring 30, the bottom magnetic block 45 will also be driven to move. When the bottom magnetic block 45 moves to the side of the lifting magnet 55, the distance between the two is close. Under the action of the repelling magnetic force, the driving plate 38 will overcome the elastic force of the return spring 37 and push the slide tube 39 to move into the liquid storage box 34. When the slide tube 39 moves into the liquid storage box 34, the liquid inlet hole 40 will be driven to enter the liquid storage box 34. At this time, the lubricating maintenance agent stored in the liquid storage box 34 will enter the interior of the slide tube 39 through the liquid inlet hole 40, and then enter the bottom contact piece 41 through the slide tube 39, and finally drip onto the surface of the scraping sponge 43 through the multiple through holes 42 on the bottom contact piece 41, and be adsorbed by the scraping sponge 43. After the scraping sponge 43 is adsorbed with the lubricating maintenance agent, when it contacts the surface of the telescopic push rod 2, the lubricating maintenance agent can be evenly applied to the surface of the telescopic push rod 2, thereby achieving the maintenance of the telescopic push rod 2.

[0046] It should be noted that when the jet pipe 19 and the nozzle 20 spray water onto the surface of the bottom cavity 3 for cooling, the sprayed water will be circulated and sucked into the cooling box 14 by the circulation main pipe 15 and the circulation branch pipe 17. After cooling inside the cooling box 14, it will re-enter the water storage tank 13, thereby realizing the recycling of cooling water (this is the prior art and will not be elaborated on in detail). When the jet pipe 19 and the nozzle 20 spray air for cooling, the vent 50 is open at this time to realize air circulation, and when the jet pipe 19 and the nozzle 20 spray water, the electric push slide rod 52 will push the cover plate 51 to block the vent 50 to prevent the cooling water from leaking to the outside through the vent 50 and affecting the use.

[0047] It should be noted that both the exhaust square tube 25 and the suction tube 16 are provided with a one-way valve. The exhaust square tube 25 only ventilates the nozzle 18, and the suction tube 16 only passes water into the nozzle 18. The open end of the jet tube 19 is also provided with a one-way valve to ensure that the jet tube 19 only sprays water or air.

[0048] It should be noted that when the telescopic push rod 2 is used downward, the structural arrangement direction in the sleeve 10 is opposite to that in the normal state (such as Fig.19 As shown), the lubricating curing agent in the liquid storage box 34 can flow downward normally by gravity.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric push rod structure, comprising a device body (1), a first coupler (53), a second coupler (36) and a third coupler (11), wherein the first coupler (53) and the second coupler (36) and the third coupler (11) are interchangeable, and characterized in that: A bottom cavity (3) is provided at the bottom of the device body (1), a motor (54) is provided inside the bottom cavity (3), a first coupler (53) is provided on the motor (54), a telescopic push rod (2) is provided inside the device body (1), a heat dissipation sleeve (12) is sleeved on the outside of the bottom cavity (3), a circulation box (6) is provided outside the bottom cavity (3), a heat exchange coil (4) is connected to the circulation box (6), a heat conduction fin (5) is fixedly connected to the outer wall of the heat exchange coil (4), and outer boxes (7) are fixedly connected to both sides of the heat dissipation sleeve (12); A cooling mechanism for cooling the interior of the bottom chamber (3) to prevent the use of the magnetic coupling push rod from being affected by excessive temperature; A maintenance mechanism is provided on the device body (1) and applies lubricating oil to the surface of the telescopic push rod (2) for maintenance; The cooling mechanism comprises a spray barrel (18) arranged inside the outer box (7), the inner side wall of the spray barrel (18) being slidably connected to a push rod (22), an end of the spray barrel (18) away from the push rod (22) being connected to an air jet pipe (19), and a plurality of spray nozzles (20) being arranged on the air jet pipe (19); A slide rail is provided inside the outer box (7), a pressure plate (21) is slidably connected to the inner wall of the slide rail, the pressure plate (21) is connected to the end of the push rod (22), a tension spring (23) is provided on the inner wall of the slide rail, and the other end of the tension spring (23) is connected to the pressure plate (21); The interior of the spray barrel (18) is connected to an air extraction square tube (25) and a liquid extraction tube (24); the interiors of the air extraction square tube (25) and the liquid extraction tube (24) are slidably connected to a baffle (27); an inner hole (29) and an outer hole (28) are respectively provided on the baffle (27); an electric telescopic rod (26) is fixedly connected to the outer wall of the air extraction square tube (25); one end of the electric telescopic rod (26) away from the air extraction square tube (25) is fixedly connected to the outer wall of the baffle (27); the interior of the liquid extraction tube (24) is connected to a suction tube (16); a water storage tank (13) is provided on the outer wall of the equipment body (1); one end of the suction tube (16) away from the liquid extraction tube (24) is connected to the interior of the water storage tank (13); A collar (8) is fixedly sleeved on the outer wall of the telescopic push rod (2), pressure rods (9) are arranged on both sides of the collar (8), and the pressure rods (9) are provided with electromagnets (31). The end of the pressure rod (9) away from the collar (8) slides through the interior of the outer box (7) and contacts the pressure plate (21); The heat dissipation sleeve (12) is internally connected to a plurality of circulation branch pipes (17), the ends of the plurality of circulation branch pipes (17) are commonly connected to a circulation main pipe (15), a cooling box (14) is provided on the outer wall of the water storage tank (13), and the circulation main pipe (15) and the cooling box (14) are mutually connected; A vent (50) is provided on the outer wall of the outer box (7), an electric push slide rod (52) is provided on the outer wall of the outer box (7), and a cover plate (51) is provided at the end of the electric push slide rod (52).

2. The electric push rod structure according to claim 1, characterized in that: The maintenance mechanism comprises a sleeve (10) arranged on the equipment body (1), the sleeve (10) is fixedly connected to an outer ring (30) inside, scraper grooves (48) are provided on both sides of the outer ring (30), the inner side wall of the scraper groove (48) is slidably connected to a scraper (44), a pressure spring (49) is arranged inside the scraper groove (48), the other end of the pressure spring (49) is connected to the scraper (44), and a trigger magnet (32) is fixedly connected to the outer side wall of the scraper (44), and the trigger magnet (32) slides through to the outside of the sleeve (10).

3. The electric push rod structure according to claim 2, characterized in that: A plurality of inner grooves (46) are provided on a side of the outer ring (30) away from the trigger magnet (32); the inner side walls of the plurality of inner grooves (46) are slidably connected with a scraping sponge (43); a pressing spring (47) is provided inside the plurality of inner grooves (46); the other end of the pressing spring (47) is connected to the scraping sponge (43); a contact magnet (33) is fixedly connected to the outer side wall of the scraping sponge (43); the contact magnet (33) slides through the outside of the sleeve (10); bottom magnetic blocks (45) are provided on both sides of the two scraping sponges (43); and the magnetic poles of the electromagnet (31) are the same as those of the contact magnet (33) and opposite to those of the trigger magnet (32).

4. The electric push rod structure according to claim 2, characterized in that: A liquid storage box (34) is arranged inside the sleeve (10), and mounting members (35) are fixedly connected to both sides of the liquid storage box (34), and a driving plate (38) is slidably connected to the inner side wall of the mounting member (35), and lifting magnets (55) are fixedly connected to both sides of the driving plate (38), and the magnetic poles of the lifting magnets (55) are the same as those of the bottom magnetic block (45), and a return spring (37) is arranged inside the mounting member (35), and the other end of the return spring (37) is connected to the bottom magnetic block (45). The driving plate (38) is connected to the driving plate (38), a sliding tube (39) is provided on the outer wall of the driving plate (38), a liquid inlet hole (40) is opened on the sliding tube (39), the sliding tube (39) slides through the interior of the liquid storage box (34), one end of the sliding tube (39) located inside the liquid storage box (34) is sealed, and one end of the sliding tube (39) away from the liquid inlet hole (40) is connected to a bottom contact piece (41), and a through hole (42) is provided at the bottom of the bottom contact piece (41).

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