Hot melt glue gun capable of effectively preventing glue leakage and scalding and accelerating condensation and solidification

Abstract

The utility model discloses a hot melt glue gun capable of effectively preventing glue leakage and scalding and accelerating condensation and solidification, the hot melt glue gun comprises a silica gel sleeve connected to a muzzle, a shell, a trigger structure, a glue feeding structure, a heating structure and a turbofan, the silica gel sleeve is conical, and a glue outlet is formed in the tip of the conical silica gel sleeve and is shaped like a Chinese character'mi '. The heating structure is connected to the outer side of the glue feeding structure and used for heating the glue melting stick; the turbofan is connected to the outer side of the glue feeding structure, the air outlet right faces the bonding point of the glue outlet nozzle, a user can start the turbofan through the button to accelerate cooling of hot glue at the bonding point when needed, cooling of the hot glue on the bonding face can be accelerated, and the rapid curing effect is achieved. A silica gel protection gun nozzle is designed at the muzzle, a *-shaped glue outlet is formed in the silica gel sleeve, when a user uses the glue gun to extrude glue, the glue outlet nozzle of the glue gun extends out of the silica gel sleeve, when glue extrusion is stopped, the copper glue outlet nozzle retracts into the glue gun, hot glue can be effectively prevented from flowing out under the influence of gravity, and the effects of heat insulation and scald prevention can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of hot melt glue gun technology, specifically to a hot melt glue gun that prevents glue leakage and accelerates condensation. Background Technology

[0002] DIY, a concept originating in Western Europe and America in the 1960s, has a history of over 60 years. Originally, it referred to home repairs done by oneself using appropriate tools and materials, without relying on or hiring professional craftsmen. In Europe and America, due to very high labor costs, people generally try to do home repairs, furniture, and decorations themselves to save on labor costs. Tools are necessary for DIY, and one crucial adhesive tool is the hot glue gun. Hot glue works by melting a solid glue stick at high temperature, then applying the melted glue to the surface of the object to be bonded by spraying or smearing. As the glue cools, it gradually hardens and bonds tightly to the surface. However, when bonding objects, the hot glue gun is often left aside because the continuous heating can cause glue leakage. This not only wastes materials but also indirectly pollutes the environment, and the leaked glue is difficult to clean. Utility Model Content

[0003] Based on the above description, this utility model provides a hot melt glue gun that can effectively prevent glue leakage and burns and accelerate condensation and curing, so as to solve the problems of easy glue leakage, risk of burns when dispensing glue, and slow solidification of hot melt glue at high temperature on the bonding surface in related technologies.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A hot melt glue gun that effectively prevents glue leakage, burns, and accelerates condensation and curing includes a shell, silicone sleeve, trigger structure, glue delivery structure, heating structure, and turbine fan;

[0006] The silicone sleeve is connected to the muzzle. The silicone sleeve is conical and has a "rice" shaped glue outlet at the top. It can effectively prevent the glue stick from overflowing due to gravity after it melts. It can also effectively prevent accidental burns from the copper glue outlet.

[0007] The heating structure is connected to the outside of the glue delivery structure and is used to heat the melt glue stick; the turbine fan is connected to the outer shell at a position that is compatible with the glue delivery structure through the fan mounting hole. Its air duct starts at the turbine fan and ends at the gun nozzle. The air outlet is adjacent to the glue outlet. Starting the turbine fan can effectively help the hot glue in the molten state of the adhesive surface to cool down and condense.

[0008] The turbine fan delivers cool air directly to the hot adhesive at the bonding surface through the air duct on the outside of the adhesive delivery structure inside the housing, allowing it to cool and solidify rapidly.

[0009] On the basis of the above technical scheme, the utility model still can make improvement as follows.

[0010] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, the shell comprises a gun body and a gun handle; the trigger structure is used for pushing the glue feeding structure; the glue feeding structure is transversely and slidably connected in the gun body, one end of the glue feeding structure away from the gun nozzle is close to the trigger structure and can be pushed by the trigger structure, and the glue feeding structure comprises a transverse heating pipe used for accommodating a glue melting rod and a spring, and the spring is connected between the inner side of the gun nozzle and the heating pipe.

[0011] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, one end of the spring is connected with the inner side of the gun nozzle, the other end of the spring is connected with one end of the heating pipe close to the gun nozzle, and the glue melting rod is inserted into the heating pipe.

[0012] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, the heating structure comprises a heating core, a heating switch, a power supply and a sliding rail structure, the heating pipe is slidably connected with the inner wall of the gun body on both sides through the sliding rail structure, the heating core, the heating switch and the power supply are connected in series through wires to form a closed loop.

[0013] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, further comprises a single-chip microcomputer and a temperature sensor, the output end of the temperature sensor is connected with the input end of the single-chip microcomputer, and the output end of the single-chip microcomputer is connected with the heating switch.

[0014] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, a slot is formed in the outer wall of the heating pipe, and the heating core is slidably inserted into the slot.

[0015] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, further comprises a silica gel extension bushing, the extension bushing is connected with and communicates with one end of the heating pipe away from the gun nozzle, and is used for heat insulation and backflow prevention.

[0016] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, the glue outlet nozzle is a copper glue outlet nozzle.

[0017] Further, the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold condensation and solidification, the heating pipe comprises a heating main pipe and the glue outlet nozzle.

[0018] Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:

[0019] The silica gel sleeve is provided with a glue outlet, the glue outlet is in a rice-shaped form, the glue outlet is retracted into the silica gel sleeve under the action of the spring when the trigger of the hot melt glue gun is not extruded, the glue outlet can be self-sealed, and thus glue leakage is prevented.

[0020] The turbine fan is provided with a wind channel in the inner wall of the glue gun, the outlet of the wind channel is close to the top end of the glue outlet at the lower side of the gun mouth, the turbine fan can be started through the button type fan switch, and the cold wind can accelerate the solidification of the high-temperature molten adhesive on the bonding surface.

[0021] The temperature sensor transmits temperature information to the single-chip microcomputer, the single-chip microcomputer controls the heating switch to be closed when the temperature is too high, and controls the heating switch to be opened when the temperature is too low, so that the temperature of the hot melt glue gun is prevented from being too high or too low.

[0022] The heating pipe and the inner wall of the gun body are slidably connected through slide rail structures, movement is more stable, and the heating core is movably inserted into the heating pipe, so that the heating core is detachable and convenient to maintain or replace.

[0023] When the trigger is pulled, the copper glue outlet nozzle and the heating main pipe move forward along the sliding groove, the copper glue outlet nozzle is separated from the silica gel sleeve and contacts the bonding surface while extruding the molten hot glue, the trigger spring is released to retract the heating main pipe and the copper glue outlet nozzle, the silica gel sleeve seals the copper glue outlet nozzle, and the sealing and heat insulation effects are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A schematic diagram of the overall structure of the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold solidification is provided for the embodiments of the present application;

[0025] Figure 2 A schematic diagram of the internal structure of the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold solidification is provided for the embodiments of the present application;

[0026] Figure 3 A schematic diagram of the internal structure of the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold solidification is provided for the embodiments of the present application;

[0027] Figure 4 A schematic diagram of the related structure of the heating pipe of the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold solidification is provided for the embodiments of the present application;

[0028] Figure 5 A schematic diagram of the related structure of the heating pipe of the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating cold solidification is provided for the embodiments of the present application;

[0029] Figure 6 A schematic diagram of the structure of the heating pipe in the embodiments of the present application;

[0030] Figure 7The related structure schematic diagram of the air duct and the air outlet of the hot melt glue gun capable of effectively preventing glue leakage, preventing scalding and accelerating condensation solidification is provided.

[0031] In the drawings, the component list represented by each sign is as follows:

[0032] 1, silica gel sleeve; 101, glue outlet; 2, shell; 3, trigger structure; 301, push seat; 302, connecting rod; 303, trigger; 304, tension spring; 4, glue feeding structure; 401, heating pipe; 4011, heating main pipe; 4012, glue outlet nozzle; 402, spring; 403, sliding groove; 404, sliding rail; 5, heating structure; 501, heating core; 502, slot; 503, heating switch; 6, turbine fan; 601, fan switch; 602, air duct; 603, air outlet; 7, muzzle; 8, single-chip microcomputer; 9, extension bushing. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0035] It can be understood that spatial relationship terms, such as "below", "under", "lower", "below", "on", "upper", etc., can be used herein to describe the relationship of one element or feature to other elements or features as shown in the figures. It should be understood that, in addition to the orientation shown in the figures, the spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the figure is turned over, the element or feature described as "below" or "under" or "below" the other element will be oriented "above" the other element or feature.

[0036] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through a central element. "Connected" in the following embodiments, if the circuits, modules, units, etc. connected to each other have the transmission of electrical signals or data, it should be understood as "electrically connected", "communication connection" and the like.

[0037] A hot melt glue gun that can effectively prevent glue leakage, scalding, and accelerate condensation and curing includes a shell 2, a silicone sleeve 1, a trigger structure 3, a glue delivery structure 4, a heating structure 5, and a turbine fan 6.

[0038] The silicone sleeve 1 is connected to the gun muzzle 7. The silicone sleeve 1 is conical and has a "rice" shaped glue outlet 101 at the top. It can effectively prevent the glue stick from overflowing due to gravity after it melts. It can also effectively prevent accidental burns from the copper glue outlet.

[0039] The heating structure 5 is connected to the outside of the glue feeding structure 4 and is used to heat the melt glue stick. A fan mounting hole is opened on the outer shell at a position adapted to the glue feeding structure. The turbine fan 6 is connected to the fan mounting hole. Its air duct 602 starts from the turbine fan and ends at the gun nozzle. The air outlet 603 is adjacent to the glue outlet 101. Starting the turbine fan 6 can effectively help the hot glue in the molten state of the adhesive surface to cool down and condense.

[0040] The turbine fan 6 delivers cool air directly to the hot adhesive at the bonding surface through the air duct 602 on the outside of the adhesive delivery structure 4 inside the housing 2, so that it can cool and solidify quickly.

[0041] Furthermore, the outer casing 2 includes a gun body and a gun handle; the trigger structure 3 is used to push the glue delivery structure 4; the glue delivery structure 4 is laterally slidably connected inside the gun body, and the end of the glue delivery structure 4 away from the muzzle 7 is close to the trigger structure 3 and can be pushed by the trigger structure 3, including a lateral heating tube 401 for accommodating the melt glue rod and a spring 402, the spring 402 being connected between the inner side of the muzzle 7 and the heating tube 401.

[0042] In this embodiment, the heating structure 5 is connected to the outside of the glue feeding structure 4 and is used to heat the melt stick; the turbine fan 6 is connected to the outside of the glue feeding structure 4 and is used to cool the melt stick when it is overheated.

[0043] In this embodiment, the heating tube 401 includes a main heating tube 4011 and a dispensing nozzle 4012;

[0044] In this embodiment, the heating structure 5 includes a heating core 501, a heating switch 503, a power supply, and a slide rail structure. The two sides of the heating tube 401 and the two sides of the inner wall of the gun body are slidably connected via the slide rail structure. This connection between the two sides of the heating tube 401 and the two sides of the inner wall of the gun body makes the glue dispensing structure 4 operate more smoothly. The heating core 501, heating switch 503, and power supply are connected in series via wires to form a closed loop. Specifically, the slide rail structure includes a groove 403 and a slide rail 404.

[0045] In this embodiment, one end of the spring 402 is connected to the inside of the muzzle 7, and the other end is connected to the end of the heating tube 401 near the muzzle 7. The molten glue rod is inserted into the heating tube 401.

[0046] In the embodiment, the hot melt glue gun further comprises a single-chip microcomputer 8 and a temperature sensor, an output end of the temperature sensor is connected with an input end of the single-chip microcomputer 8, and an output end of the single-chip microcomputer 8 is connected with the heating switch 503. The temperature sensor transmits temperature information to the single-chip microcomputer 8. When the single-chip microcomputer 8 judges that the temperature is too high, the single-chip microcomputer 8 controls the heating switch 503 to be closed. When the single-chip microcomputer 8 judges that the temperature is too low, the single-chip microcomputer 8 controls the heating switch 503 to be opened, so as to prevent the hot melt glue gun from being too high or too low in temperature.

[0047] In the embodiment, the heating pipe 401 is provided with a slot 502, and the heating core 501 is slidingly inserted into the slot 502. The heating core 501 is movably inserted into the heating pipe 401, so that the heating core 501 can be disassembled and replaced, thereby facilitating maintenance or replacement. The slot 502 can be arranged below the heating pipe 401, and the heating core 501 is connected below the heating pipe 401, so that good heat conduction effect is achieved.

[0048] It should be noted that the trigger structure 3 can adopt one of the prior art, for example, the trigger structure 3 comprises a pushing seat 301, a connecting rod 302, a tension spring 304 and an arc-shaped trigger 303.

[0049] More specifically, the turbine fan 6, the fan switch 601 and the power supply are connected in series through wires to form a closed loop.

[0050] More specifically, the fan switch 601 is a circular button type, and the heating switch 503 is a boat type.

[0051] More specifically, the hot melt glue gun further comprises a silica gel extension sleeve 9, which is connected with and communicates with one end of the heating pipe 401 away from the gun mouth 7, and is used for heat insulation and backflow prevention.

[0052] Specifically, the gun handle is provided with a trigger opening near the side of the gun body close to the gun nozzle, the trigger is rotationally connected with the gun handle, and the lower part extends out of the trigger opening.

[0053] When the trigger is released, the spring 402 in front of the trigger will rebound the entire heating pipe 401, and the glue outlet will be retracted into the silica gel sleeve 1.

[0054] The single-chip microcomputer 8 and the temperature sensor are added. When the temperature exceeds the set temperature, the single-chip microcomputer 8 controls the heating switch 503 to be closed to prevent overheating and scalding the operator. When the temperature is lower than the set temperature, the single-chip microcomputer 8 controls the heating switch 503 to be opened to heat the hot melt glue stick. The turbine fan 6 can quickly cool the hot melt glue at high power (the glue body is not easy to cool when the temperature is high), and the silica gel sleeve prevents scalding and glue leakage. The single-chip microcomputer 8, the switch and the power supply are connected in series through wires.

[0055] The silicon sleeve 1 has elasticity, after a glue outlet is opened in the middle, the copper glue outlet can be extended and recovered, the heating tube 401 can be smoothly slid in the hot melt glue gun forwards and backwards by adding a slide rail structure on the heating tube 401, the molten glue rod can be directly pushed forwards, so that the gun nozzle is extended to flow smoothly when used, the copper glue outlet is recovered to prevent glue leakage when not used.

[0056] The heating switch 503 is used for controlling the glue gun to start heating, the fan switch 601 is used for controlling the turbine fan 6 to work, when the heating switch 503 is pressed, the heating core 501 starts to heat to transmit temperature to the heating tube 401, the molten glue rod is extruded and sent into the heating tube 401 to be melted by pulling the trigger, the whole heating tube 401 structure is pushed forwards, the glue outlet is extended from the silicon sleeve 1, and finally the hot melt glue is extruded.

[0057] Meanwhile, the turbine fan 6 can be started to cool and radiate the extruded hot melt glue to promote the hot melt glue to solidify and form, when the trigger is released, the glue feeding structure 4 is pushed back to the original position by the spring 402, hot melt glue leakage is prevented, and scalding is also prevented. The heating core 501 uses the single-chip microcomputer 8 to control temperature, so that the temperature is prevented from being too high or too low.

[0058] When used, the trigger 303 is pulled, the copper glue outlet 4012 and the heating main tube 4011 are extended forwards along the slide groove, the copper glue outlet 4012 is separated from the silicon sleeve 1 and contacts the bonding surface to extrude molten hot glue, the spring 402 is released to recover the whole heating main tube 4011 and the copper glue outlet 4012. The silicon sleeve 1 seals the copper glue outlet 4012, and the sealing and heat insulation effects are achieved. The hot melt glue is not bonded with the silicon glue, even if there is residual hot glue solidified at the glue outlet 101, because the copper glue outlet 4012 has high temperature, the solidified glue is melted after contacting, and the copper glue outlet 4012 is not affected.

[0059] The above only describes preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hot melt glue gun capable of effectively preventing leakage, preventing scalding and accelerating condensation solidification, characterized in that, It includes a housing, a silicone sleeve, a trigger structure, a glue feeding structure, a heating structure and a turbo fan; The silicone sleeve is connected to the muzzle. The silicone sleeve is conical, and a "cross-shaped" glue outlet is opened at the top; The heating structure is connected to the outside of the glue feeding structure and is used to heat the glue stick; The turbo fan is connected to the housing through a fan mounting hole at a position adapted to the glue feeding structure. Its air duct starts from the turbo fan and ends at the muzzle, and the air outlet is adjacent to the glue outlet.

2. The hot melt glue gun with effective leakage-proof, anti-scald and accelerated condensation curing according to claim 1, characterized in that, The housing includes a gun body and a gun handle; the trigger structure is used to push the glue feeding structure; the glue feeding structure is horizontally slidably connected in the gun body. The end of the glue feeding structure away from the muzzle is close to the trigger structure and can be pushed by the trigger structure. It includes a horizontal heating tube for accommodating the glue stick and a spring. The spring is connected between the inner side of the muzzle and the heating tube.

3. The hot melt glue gun with effective leakage-proof, anti-scald and accelerated condensation curing according to claim 2, characterized in that, One end of the spring is connected to the inner side of the muzzle, and the other end is connected to the end of the heating tube close to the muzzle.

4. The hot melt glue gun with effective leakage-proof, anti-scald and accelerated condensation curing according to claim 2, characterized in that, The heating structure includes a heating core, a heating switch, a power supply and a slide rail structure. The two sides of the heating tube and the two sides of the inner wall of the gun body are slidably connected through the slide rail structure. The heating core, the heating switch and the power supply are connected in series through wires to form a closed loop.

5. The hot melt glue gun with effective leakage-proof, anti-scald and accelerated condensation curing according to claim 4, characterized in that, It also includes a single-chip microcomputer and a temperature sensor. The output end of the temperature sensor is connected to the input end of the single-chip microcomputer, and the output end of the single-chip microcomputer is connected to the heating switch.

6. The hot melt glue gun with effective leakage-proof, anti-scald and accelerated condensation curing according to claim 4, characterized in that, Slots are opened on the outer wall of the heating tube, and the heating core is slidably inserted into the slots.

7. The hot melt glue gun with effective leakage-proof, anti-scald and accelerated condensation curing according to claim 2, characterized in that, It also includes a silicone extension bushing. The extension bushing is connected and communicated with the end of the heating tube away from the muzzle and is used for heat insulation and anti-backflow.

8. The hot melt glue gun with effective leakage-proof, anti-scald and accelerated condensation curing according to claim 2, characterized in that, The heating tube includes a heating main tube and a glue outlet nozzle.

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