Alternating current and direct current dual-purpose hot melting device and using method thereof

Abstract

The invention is applicable to the technical field of dual-power conversion, and provides an AC-DC (alternating current-direct current) hot melter and a using method thereof, and the AC-DC hot melter comprises a hot melter body; a battery adapter seat is arranged at the tail part of the hot melting device body, and a power line socket is arranged at the tail part of the hot melting device body below the battery adapter seat; a lithium battery pack is inserted into the battery adapter seat in a sliding manner; a piston part fixedly connected with the lithium battery pack is inserted into the fixed cylinder; a first piston is slidably arranged in the piston cavity; an ejector rod in sliding fit with the guide hole is fixed to the top of the first piston. A tension spring is fixed between the piston cavity and the first piston; according to the device, the lithium battery pack slides along the piston pipe, through linkage cooperation of all the parts, in the process of achieving insertion and separation of the lithium battery pack and the battery adapter seat, separation and insertion of the second power plug and the power line socket are completed, and simultaneous power supply of alternating current and direct current dual power sources is forbidden; and the safety of the operating personnel in the using process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dual power conversion, and more particularly to an AC / DC dual-purpose hot-melt fuse and a method for using the same. Background Art

[0002] At present, domestic water supply mostly uses PPR water pipes, and PPR water pipes are mainly connected by hot melters. According to the data of hot melters sold in the market, AC-powered hot melters can drive high-power heating wires, so they heat up quickly, accounting for more than 95% of the hot melt industry, but the disadvantage is that they cannot work in places without mains electricity; DC-powered hot melters are currently almost all powered by lithium battery packs, and only a few manufacturers on the market produce this product.

[0003] The use of DC lithium battery pack or AC mains power supply ensures that the fuser can heat up quickly when there is mains power, and can also work when there is no mains power. In the process of dual power supply, in order to protect the safety of operators, AC and DC power supply cannot be used at the same time. Therefore, it is very necessary to design a protection structure that prohibits dual power supply at the same time. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an AC / DC dual-purpose heat fuser and a method of using the same, by sliding the lithium battery pack along the piston tube and coordinating the various components to achieve connection and disconnection between the lithium battery pack and the battery adapter, so that the second power plug and the power cord socket can be disconnected and connected, and simultaneous power supply of AC and DC dual power supplies is prohibited, thereby improving the safety of the operator during use, ensuring that the heat fuser can heat up quickly when there is AC power, and can work when there is no AC power.

[0005] To achieve the above object, the present invention provides the following technical solutions: A dual-purpose AC / DC hot-melt fuser comprises a hot-melt fuser body; a battery adapter is fixedly installed at the rear of the hot-melt fuser body, and a power cord socket is fixedly installed at the rear of the hot-melt fuser body below the battery adapter; a lithium battery pack adapted thereto is slidably inserted in the battery adapter; two opposite sides of the battery adapter are symmetrically inclined upwardly provided with fixing cylinders; a piston part fixedly connected to the lithium battery pack is inserted in the fixing cylinder; a piston cavity is symmetrically provided inside the power cord socket; a guide hole is provided at the top of the piston cavity, and an L-shaped channel penetrating the inside of the power cord socket and extending outward is provided on its inner wall near its bottom; an infusion tube is fixed at the top of the L-shaped channel; the infusion tube is connected to the piston part through a hose; a first piston is slidably provided inside the piston cavity; a push rod slidably matched with the guide hole is fixed on the top of the first piston; a tension spring sleeved on the push rod is fixed between the top of the piston cavity and the first piston; the piston part, the hose and the L-shaped channel are filled with insulating liquid; a power cord assembly is installed on the bottom of the battery adapter.

[0006] The present invention is further configured as follows: a connecting tube is provided at the bottom end of the fixed cylinder; screw holes are symmetrically provided on the peripheral side of the fixed cylinder; an ear tube coaxial with the screw hole is fixed on the peripheral side of the fixed cylinder; a dust cover is screwed on the end of the ear tube; the piston part includes a piston tube plugged with the fixed cylinder; heat dissipation grooves are evenly provided on the outer peripheral side of the piston tube; a cannula plugged with the connecting tube is provided at the bottom of the piston tube; the cannula is connected to the infusion tube through a hose.

[0007] The present invention is further configured as follows: a avoidance tube is arranged through the inside of the piston tube; a fastening bolt threadedly connected to the screw hole is inserted in the avoidance tube; a second piston is slidably arranged inside the piston tube; a slip ring is fixed to the inner wall of the piston tube; a piston rod slidably matched with the slip ring is fixed to the top of the second piston; a mounting block is fixed to the end of the piston rod; a return spring sleeved on the piston rod is fixed between the mounting block and the slip ring.

[0008] The present invention is further configured as follows: screw holes are provided on the side surfaces of the mounting block; sliding grooves for slidingly fitting with the piston tube are symmetrically inclined upwardly on two opposite sides of the lithium battery pack; a baffle is fixed on the top of the sliding groove; an arc-shaped plate coaxial with the mounting block is fixed on the top of the baffle; and fastening screws screwed to the screw holes are slidably provided through the side surfaces of the arc-shaped plate.

[0009] The present invention is further configured as follows: a mounting groove is provided at the oblique top of the lithium battery pack; a lithium battery pack plug is fixedly installed at the top of the mounting groove; a lithium battery socket compatible with the lithium battery pack plug is fixedly installed on the oblique side of the battery adapter; a charging port is provided at the bottom of the lithium battery pack; guide grooves parallel to the bottom of the hot melt body are symmetrically provided on two opposite sides of the battery adapter; a U-shaped plate is slidably provided between the two guide grooves; a number of connecting springs are fixed between the U-shaped plate and the side of the battery adapter; slots that are plugged in and matched with the two ends of the U-shaped plate are symmetrically provided on two opposite sides of the lithium battery pack.

[0010] The present invention is further configured as follows: the power cord assembly includes a fixing plate fixedly mounted on the bottom of the battery adapter; a socket strip is fixedly mounted on the bottom surface of the fixing plate; an AC power cord is electrically connected to the side of the socket strip; a first power plug is electrically connected to the end of the AC power cord; a first plug and a second plug are sequentially plugged into the socket strip; the first plug and the second plug are electrically connected to the first power cord and the second power cord, respectively; the end of the first power cord is electrically connected to a charging head that is plugged into and matched with the charging port; a second power plug that is compatible with the power cord socket is fixed to the end of the second power cord.

[0011] The present invention is further configured as follows: an extension rod is symmetrically screwed and fixed on the side of the power cord socket; a stopper is fixed on the end of the extension rod; sleeves that slide with the extension rod are symmetrically fixed on two opposite sides of the second power plug; an extrusion spring that is sleeved on the extension rod is fixedly connected between the sleeve and the stopper; a plurality of winding grooves are evenly arranged on the inner bottom surface of the hot melt body, and a fixing seat that plugs and cooperates with the first power plug is fixed on its inner bottom surface.

[0012] The advantages of the present invention are: 1. The present invention slides the lithium battery pack along the piston tube and realizes the connection and disconnection between the lithium battery pack and the battery adapter through the linkage between the various components, so that the second power plug and the power cord socket are disconnected and connected, and the AC and DC dual power supplies are prohibited from being supplied at the same time, thereby improving the safety of the operating personnel during use, ensuring that the hot melter can heat up quickly when there is AC power, and can work when there is no AC power.

[0013] 2. When the second power plug of the present invention is inserted into the power cord socket, the first power plug is connected to the mains circuit. At this time, the alternating current provides power to the fuser body, and at the same time, the mains charges the lithium battery pack, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic structural diagram of an AC / DC dual-purpose heat fuser.

[0015] Figure 2 It is a schematic structural diagram of the hot melt body of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the hot melt body of the present invention from another angle.

[0017] Figure 4 For the present invention Figure 3 A magnified image of area A.

[0018] Figure 5 It is a schematic structural diagram of the lithium battery pack of the present invention.

[0019] Figure 6 It is a schematic structural diagram of the piston part of the present invention.

[0020] Figure 7 It is a structural schematic diagram of the piston tube of the present invention.

[0021] Figure 8 It is a structural schematic diagram of the piston rod of the present invention.

[0022] Fig. 9 It is a schematic structural diagram of the power cord assembly of the present invention.

[0023] Fig.10 It is a schematic diagram of the structure of the lithium battery pack of the present invention in the power supply state.

[0024] Fig.11 For the present invention Fig.10 A magnified view of area B.

[0025] Fig.12 It is a schematic diagram of the structure of the present invention under the alternating current power supply state.

[0026] Fig.13 For the present invention Fig.12 A magnified view of area B.

[0027] In the figure: 1. hot melter body; 2. battery adapter; 3. power cord socket; 4. lithium battery pack; 5. fixing cylinder; 6. piston; 7. piston cavity; 8. L-shaped channel; 9. infusion tube; 10. first piston; 11. ejector rod; 12. tension spring; 13. power cord assembly; 14. connecting tube; 15. screw hole; 16. ear tube; 17. dust cover; 18. piston tube; 19. intubation tube; 20. avoidance tube; 21. fastening bolt; 22. second piston; 23. slip ring; 24. piston rod; 25. mounting block; 26. return spring; 27. screw hole; 28. slide groove; 29. ​​baffle; 30 , arc-shaped plate; 31, fastening screws; 32, mounting slot; 33, lithium battery pack plug; 34, lithium battery socket; 35, charging port; 36, guide slot; 37, U-shaped plate; 38, connecting spring; 39, slot; 40, fixing plate; 41, socket strip; 42, AC power cord; 43, first power plug; 44, first plug; 45, second plug; 46, first power cord; 47, second power cord; 48, charging head; 49, second power plug; 50, extension rod; 51, extrusion spring; 52, winding groove; 53, fixing seat; 54, heat dissipation groove; 55, block; 56, sleeve. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0031] For example, see Figure 1-13 , the present invention provides the following technical solutions: A dual-purpose AC / DC hot melt device, specifically, comprises a hot melt device body 1; a battery adapter seat 2 is fixedly installed at the rear of the hot melt device body 1, and a power cord socket 3 is fixedly installed at the rear of the hot melt device body 1 below the battery adapter seat 2; a lithium battery pack 4 adapted thereto is slidably plugged into the battery adapter seat 2; two opposite sides of the battery adapter seat 2 are symmetrically inclined upwardly provided with fixing cylinders 5; a piston portion 6 fixedly connected to the lithium battery pack 4 is plugged into the fixing cylinder 5; a piston cavity 7 is symmetrically provided inside the power cord socket 3; a guide hole is provided at the top of the piston cavity 7, and An L-shaped channel 8 is provided on its inner wall near its bottom, which passes through the interior of the power cord socket 3 and extends outward; an infusion tube 9 is fixed to the top of the L-shaped channel 8; the infusion tube 9 is connected to the piston part 6 through a hose; a first piston 10 is slidably arranged inside the piston cavity 7; a push rod 11 is fixed to the top of the first piston 10 and is slidably matched with the guide hole; a tension spring 12 is fixed between the top of the piston cavity 7 and the first piston 10 and is sleeved on the push rod 11; the piston part 6, the hose and the L-shaped channel 8 are filled with insulating liquid; a power cord assembly 13 is installed on the bottom surface of the battery adapter 2.

[0032] The working principle of the first embodiment of the present invention is as follows: by sliding the lithium battery pack 4 along the piston tube 18 and coordinating the various components, the lithium battery pack 4 and the battery adapter 2 are connected and disconnected, so that the second power plug 49 and the power cord socket 3 are disconnected and connected, and the AC and DC dual power supplies are prohibited from being supplied at the same time, thereby improving the safety of the operating personnel during use, ensuring that the hot melter body 1 can heat up quickly when there is AC power, and can also ensure that it can work when there is no AC power.

[0033] For example 2, please refer to Figure 1-13 The second embodiment is improved on the basis of the first embodiment as follows. Specifically, a connecting tube 14 is provided at the bottom of the fixed cylinder 5; screw holes 15 are symmetrically provided on the sides of the fixed cylinder 5; an ear tube 16 coaxial with the screw hole 15 is fixed on the sides of the fixed cylinder 5; a dust cover 17 is screwed on the end of the ear tube 16; the piston part 6 includes a piston tube 18 plugged with the fixed cylinder 5; heat dissipation grooves 54 are evenly provided on the outer side of the piston tube 18; a cannula 19 plugged with the connecting tube 14 is provided at the bottom of the piston tube 18; the cannula 19 is connected to the infusion tube 9 through a hose; and a avoidance tube 20 is provided inside the piston tube 18.

[0034] A fastening bolt 21 threadedly connected to the screw hole 15 is inserted in the avoidance tube 20; a second piston 22 is slidably arranged inside the piston tube 18; a slip ring 23 is fixed to the inner wall of the piston tube 18; a piston rod 24 slidingly matched with the slip ring 23 is fixed to the top of the second piston 22; a mounting block 25 is fixed to the end of the piston rod 24; a return spring 26 sleeved on the piston rod 24 is fixed between the mounting block 25 and the slip ring 23.

[0035] Screw holes 27 are provided on the side surfaces of the mounting block 25; slide grooves 28 for sliding cooperation with the piston tube 18 are symmetrically inclined upwardly provided on the two opposite sides of the lithium battery pack 4; a baffle 29 is fixed on the top of the slide groove 28; an arc-shaped plate 30 coaxial with the mounting block 25 is fixed on the top of the baffle 29; fastening screws 31 screwed to the screw holes 27 are slidably provided through the side surfaces of the arc-shaped plate 30.

[0036] The working principle of the second embodiment is as follows: the piston tube 18 is inserted into the fixed cylinder 5, the connecting tube 14 is inserted into the cannula 19, the cannula 19 is connected to the infusion tube 9 through a hose, the piston tube 18 is fixed in the fixed cylinder 5 by the fastening bolts 21, the mounting block 25 is fixed on the arc plate 30 by the fastening screws 31, insulating liquid is added to the piston tube 18, and then the second piston 22 is slid into the piston tube 18 to complete the assembly of the piston part 6 with the lithium battery pack 4 and the battery adapter 2.

[0037] Insulating liquid is a liquid material with insulating properties. It plays the role of insulation, cooling, impregnation and filling in electrical products. It also plays the role of arc extinguishing in oil switches and energy storage in capacitors. It can be refined from mineral oil, synthesized artificially, or extracted from animal and plant oils. The most commonly used are transformer oil, capacitor oil and insulating oil for power cables; insulating liquid plays a role of heat exchange and cooling for the power cord socket 3 to a certain extent.

[0038] For example 3, please refer to Figure 1-13 , the third embodiment makes the following improvements on the basis of the second embodiment. Specifically, a mounting groove 32 is provided at the oblique top of the lithium battery pack 4; a lithium battery pack plug 33 is fixedly installed at the top of the mounting groove 32; a lithium battery socket 34 adapted to the lithium battery pack plug 33 is fixedly installed at the oblique side of the battery adapter 2; a charging port 35 is provided at the bottom of the lithium battery pack 4; guide grooves 36 parallel to the bottom of the hot melt body 1 are symmetrically provided on two opposite sides of the battery adapter 2; a U-shaped plate 37 is slidably provided between the two guide grooves 36; a plurality of connecting springs 38 are fixed between the U-shaped plate 37 and the side of the battery adapter 2; slots 39 that are plugged into and matched with the two ends of the U-shaped plate 37 are symmetrically provided on two opposite sides of the lithium battery pack 4.

[0039] The power cord assembly 13 includes a fixing plate 40 fixedly mounted on the bottom of the battery adapter 2; a socket strip 41 is fixedly mounted on the bottom surface of the fixing plate 40; an AC power cord 42 is electrically connected to the side of the socket strip 41; a first power plug 43 is electrically connected to the end of the AC power cord 42; a first plug 44 and a second plug 45 are sequentially plugged into the socket strip 41; a first power cord 46 and a second power cord 47 are electrically connected to the first plug 44 and the second plug 45 respectively; the end of the first power cord 46 is electrically connected to a charging head 48 that is plugged into and matched with the charging port 35; a second power plug 49 that is compatible with the power cord socket 3 is fixed to the end of the second power cord 47.

[0040] An extension rod 50 is symmetrically screwed and fixed on the side of the power cord socket 3; a stopper 55 is fixed to the end of the extension rod 50; sleeves 56 that slide with the extension rod 50 are symmetrically fixed on two opposite sides of the second power plug 49; an extrusion spring 51 that is sleeved on the extension rod 50 is fixedly connected between the sleeve 56 and the stopper 55; a number of winding grooves 52 are evenly arranged on the inner bottom surface of the hot melt body 1, and a fixing seat 53 that plugs and cooperates with the first power plug 43 is fixed on its inner bottom surface.

[0041] Working principle of the third embodiment: In the initial state, under the elastic force of the extrusion spring 51, the second power plug 49 is driven to be inserted into the power cord socket 3, and under the elastic force of the return spring 26, the second piston 22 is pressed against the bottom surface of the slip ring 23, and the second piston 22 and the hose are filled with insulating liquid. At this time, under the elastic force of the tension spring 12, the first piston 10 is pressed against the bottom surface of the piston cavity 7, and the push rod 11 is received inside the piston cavity 7. At this time, the lithium battery pack plug 33 on the lithium battery pack 4 is disengaged from the lithium battery socket 34, and the charging head 48 is inserted into the charging port 35, and the first power plug 43 is connected to the AC power circuit. At this time, the AC power provides power to the hot melt body 1, and at the same time, the AC power charges the lithium battery pack 4.

[0042] The lithium battery pack 4 is connected to the inverter inside the fuser body 1. The inverter is a converter that converts DC power (battery, storage bottle) into constant frequency and voltage or frequency and voltage regulated AC power (generally 220V, 50Hz sine wave). It consists of an inverter bridge, control logic and filter circuit.

[0043] In the absence of mains electricity, the lithium battery pack 4 is pressed obliquely downward along the piston tube 18, the return spring 26 is compressed, and the second piston 22 slides down along the piston tube 18 to press the insulating liquid in the piston tube 18 into the piston chamber 7 (the sliding down process of the second piston 22 is equivalent to the process of discharging the insulating liquid, and the sliding up process is equivalent to the process of extracting the insulating liquid), so that the first piston 10 slides up along the piston chamber 7, thereby driving the push rod 11 to slide out of the piston chamber 7 and push the second power plug 49 out of the power cord socket 3. In this process, the tension spring 12 is compressed. , the extrusion spring 51 is compressed. During this process, the lithium battery pack plug 33 is inserted into the lithium battery socket 34. At this time, the lithium battery pack 4 provides power to the hot melt body 1. During this process, the lithium battery pack 4 squeezes the U-shaped plate 37 to make it slide along the guide groove 36, and the corresponding connecting spring 38 is stretched. When the lithium battery pack 4 is inserted into the battery adapter 2, the slot 39 and the U-shaped plate 37 are placed on the same horizontal plane. Under the elastic reset force of the connecting spring 38, the U-shaped plate 37 is driven to be inserted into the slot 39, which plays a limiting role on the lithium battery pack 4 and prevents the device from sliding up along the piston tube 18.

[0044] When there is no mains electricity, the AC power cord 42 is wound in the winding groove 52, and the first power plug 43 is inserted into the fixing seat 53, so that the AC power cord 42 can be stored for easy use.

[0045] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0046] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0049] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A dual-purpose AC / DC hot melt device, comprising a hot melt device body (1); characterized in that: A battery adapter seat (2) is fixedly mounted on the rear of the hot melt body (1), and a power cord socket (3) is fixedly mounted on the rear of the hot melt body (1) below the battery adapter seat (2); a lithium battery pack (4) adapted thereto is slidably plugged into the battery adapter seat (2); The battery adapter seat (2) is provided with fixing cylinders (5) symmetrically and tilted upward on two opposite sides; a piston portion (6) fixedly connected to the lithium battery pack (4) is inserted into the fixing cylinder (5); A piston cavity (7) is symmetrically provided inside the power cord socket (3); a guide hole is provided at the top of the piston cavity (7), and an L-shaped channel (8) is provided on the inner wall thereof near the bottom thereof, penetrating the inside of the power cord socket (3) and extending outward; an infusion tube (9) is fixed at the top of the L-shaped channel (8); the infusion tube (9) is connected to the piston portion (6) via a hose; A first piston (10) is slidably disposed inside the piston cavity (7); a push rod (11) is fixed to the top of the first piston (10) and is slidably engaged with the guide hole; a tension spring (12) sleeved on the push rod (11) is fixed between the top of the piston cavity (7) and the first piston (10); the piston portion (6), the hose, and the L-shaped channel (8) are filled with insulating liquid; and a power cord assembly (13) is installed on the bottom surface of the battery adapter seat (2).

2. The AC / DC dual-purpose heat fuser according to claim 1, characterized in that: The bottom end of the fixed tube (5) is connected to a connecting tube (14); screw holes (15) are symmetrically provided on the peripheral side of the fixed tube (5); an ear tube (16) coaxial with the screw hole (15) is fixed to the peripheral side of the fixed tube (5); a dust cover (17) is screwed to the end of the ear tube (16); The piston portion (6) comprises a piston tube (18) pluggably engaged with the fixed cylinder (5); heat dissipation grooves (54) are evenly arranged on the outer circumferential side of the piston tube (18); a plug tube (19) pluggably engaged with the connecting tube (14) is provided at the bottom of the piston tube (18); the plug tube (19) is connected to the infusion tube (9) via a hose.

3. The AC / DC dual-purpose heat fuser according to claim 2, characterized in that: A bypass tube (20) is provided inside the piston tube (18) and penetrates therein; a fastening bolt (21) is inserted into the bypass tube (20) and is threadedly connected to the screw hole (15); A second piston (22) is slidably arranged inside the piston tube (18); a slip ring (23) is fixed to the inner wall of the piston tube (18); a piston rod (24) is fixed to the top of the second piston (22) and is slidably matched with the slip ring (23); a mounting block (25) is fixed to the end of the piston rod (24); and a return spring (26) sleeved on the piston rod (24) is fixed between the mounting block (25) and the slip ring (23).

4. The AC / DC dual-purpose heat fuser according to claim 3, characterized in that: The mounting block (25) is provided with a screw hole (27) on the circumferential side surface; the lithium battery pack (4) is provided with a slide groove (28) slidably matched with the piston tube (18) on two opposite sides of the lithium battery pack (4) and symmetrically inclined upward; a baffle (29) is fixed at the top of the slide groove (28); an arc-shaped plate (30) coaxial with the mounting block (25) is fixed at the top of the baffle (29); and a fastening screw (31) is slidably provided through the circumferential side surface of the arc-shaped plate (30) and is screwed to the screw hole (27).

5. The AC / DC dual-purpose heat fuser according to claim 4, characterized in that: The oblique top of the lithium battery pack (4) is provided with a mounting groove (32); a lithium battery pack plug (33) is fixedly mounted in the top of the mounting groove (32); a lithium battery socket (34) adapted to the lithium battery pack plug (33) is fixedly mounted on the oblique side of the battery adapter seat (2); and a charging port (35) is provided at the bottom of the lithium battery pack (4); The battery adapter seat (2) has two opposite side surfaces symmetrically provided with guide grooves (36) which are parallel to the bottom of the hot melt body (1); a U-shaped plate (37) is slidably arranged between the two guide grooves (36); a plurality of connecting springs (38) are fixed between the U-shaped plate (37) and the side surfaces of the battery adapter seat (2); and the lithium battery pack (4) has two opposite side surfaces symmetrically provided with slots (39) which are pluggable with the two ends of the U-shaped plate (37).

6. The AC / DC dual-purpose heat fuser and the method of using the same according to claim 5, characterized in that: The power cord assembly (13) comprises a fixing plate (40) fixedly mounted on the bottom of the battery adapter seat (2); a socket strip (41) is fixedly mounted on the bottom surface of the fixing plate (40); an AC power cord (42) is electrically connected to the side of the socket strip (41); and an end of the AC power cord (42) is electrically connected to a first power plug (43); The socket strip (41) is provided with a first plug (44) and a second plug (45) in sequence; the first plug (44) and the second plug (45) are electrically connected to a first power cord (46) and a second power cord (47) respectively; the end of the first power cord (46) is electrically connected to a charging head (48) that is plugged into and matched with the charging port (35); and the end of the second power cord (47) is fixed with a second power plug (49) that is compatible with the power cord socket (3).

7. The AC / DC dual-purpose heat fuser according to claim 6, characterized in that: An extension rod (50) is symmetrically screwed and fixed to the side of the power cord socket (3); a stopper (55) is fixed to the end of the extension rod (50); sleeves (56) that are slidably matched with the extension rod (50) are symmetrically fixed to two opposite sides of the second power plug (49); a compression spring (51) that is sleeved on the extension rod (50) is fixedly connected between the sleeve (56) and the stopper (55); The inner bottom surface of the hot melt body (1) is evenly provided with a plurality of winding grooves (52), and a fixing seat (53) for plugging and cooperating with the first power plug (43) is fixed on the inner bottom surface.

8. The method for using the AC / DC dual-purpose hot melter according to claim 7, characterized in that: The following steps are involved: T1, in the initial state, under the elastic force of the extrusion spring (51), the second power plug (49) is driven to be inserted into the power cord socket (3), and under the elastic force of the return spring (26), the second piston (22) is driven to be pressed against the bottom surface of the slip ring (23). At this time, the lithium battery pack plug (33) on the lithium battery pack (4) is separated from the lithium battery socket (34), and the charging head (48) is inserted into the charging port (35), and the first power plug (43) is connected to the mains circuit. At this time, the alternating current provides power to the heat fuser body (1), and at the same time, the mains charges the lithium battery pack (4); T2. When there is no mains electricity, the lithium battery pack (4) is pressed obliquely downward along the piston tube (18), the return spring (26) is compressed, and the second piston (22) slides down along the piston tube (18) to press the insulating liquid in the piston tube (18) into the piston chamber (7), so that the first piston (10) slides up along the piston chamber (7), thereby driving the push rod (11) to slide out of the piston chamber (7) and push the second power plug (49) out of the power cord socket (3), and the extrusion spring (51) is compressed. During this process, the lithium battery pack plug (33) is inserted into the lithium battery socket (34). At this time, the lithium battery pack (4) provides power to the hot melt device body (1).

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