Glue gun capable of quickly replacing glue nozzle

Abstract

The glue gun comprises a glue barrel, the glue barrel is divided into a glue barrel front section, a glue barrel middle section and a glue barrel rear section, a first long hole is formed in the surface of the glue barrel middle section, an annular plate is installed on the inner side wall of the glue barrel middle section in a sliding mode, a round cavity is formed in the glue barrel front section, and a connecting hole is formed in the front end face of the round cavity. A limiting ring plate is fixed to the inner side wall of the rotating cover, a limiting ring groove is formed in the outer surface of the front section of the glue barrel, the limiting ring plate is in sliding fit with the limiting ring groove, a plurality of glue outlet holes are formed in the bottom of the rotating cover, and a plurality of glue nozzles are fixedly communicated with the front end face of the rotating cover and correspond to the glue outlet holes. A first screw rod penetrates through and is in threaded connection with the rear section of the rubber barrel; and an extrusion disc is rotationally mounted at the front end of the first screw rod. When the glue outlets with different sizes are replaced according to construction environment requirements, the corresponding glue nozzles, the glue outlets and the connecting holes can be connected by rotating the rotating covers, and the glue nozzles are very simple and convenient to replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, in particular to a glue gun with a quick-changing glue nozzle. Background Art

[0002] In construction projects, the joints of curtain walls need to be treated with weather-resistant glue to strengthen the strength of the joints and beautify the appearance. With the improvement of living standards, people's requirements for living conditions are becoming more and more refined, and the design of curtain walls is becoming more and more diversified. There are many curtain walls with continuous fold lines, or wavy curtain walls with imitation tile designs, which require glue to be applied to the joints at the corners.

[0003] When using weather-resistant glue, a glue gun is needed to assist in applying the glue. Existing glue guns are as follows Figure 6 As shown, it includes a pressing component 1, a rubber cylinder 2, a rubber cover 3 and a rubber nozzle 4. The rubber cylinder 2 is used to place weather-resistant glue. The rubber cover 3 is threadedly connected to the front end of the rubber cylinder 2 to seal and fix the rubber nozzle 4 at the front end of the rubber cylinder 2. Every time the glue outlet of different sizes is changed according to the construction environment, the existing glue gun needs to remove the rubber cover 3, replace a different glue nozzle 4 and then fix it with the rubber cover 3. The operation is cumbersome and the replacement of the glue nozzle 4 is very troublesome. Utility Model Content

[0004] The main purpose of the utility model is to provide a glue gun with a quick-change glue nozzle, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A glue gun with a quick-change glue nozzle comprises a glue cartridge, the glue cartridge is divided into a glue cartridge front section, a glue cartridge middle section and a glue cartridge rear section, the surface of the glue cartridge middle section is provided with a first long hole, a circular ring plate is slidably mounted on the inner side wall of the glue cartridge middle section, a circular cavity is arranged in the glue cartridge front section, a connecting hole is arranged on the front end surface of the circular cavity, an insertion hole is arranged on the rear end surface of the circular cavity, a rotating cover is rotatably mounted on the outer surface of the glue cartridge front section, a limiting ring plate is fixed on the inner side wall of the rotating cover, and a limiting ring groove is arranged on the outer surface of the glue cartridge front section The limiting ring plate is slidably matched with the limiting ring groove, a plurality of glue outlet holes are opened at the bottom of the rotating cover, the plurality of glue outlet holes are distributed in a ring shape with equal intervals, the glue outlet holes are adapted to the connecting holes, a plurality of glue nozzles are fixedly connected to the front end surface of the rotating cover corresponding to the plurality of glue outlet holes, the plurality of glue nozzles have discharge ports of different sizes, a first screw is passed through and threadedly connected to the rear section of the rubber cylinder, an extrusion disk is rotatably installed at the front end of the first screw, and the extrusion disk, the circular ring plate and the insertion hole are located on the same axis.

[0007] Preferably, a plurality of limiting holes are formed at equal intervals on the top of the side wall of the rotating cover, the number of the limiting holes is the same as the glue outlet holes, a fixed cylinder is fixed on the outer surface of the glue cylinder, a second long hole is formed on the surface of the fixed cylinder, a first moving block is slidably installed in the second long hole, a spring is provided in the fixed cylinder, one end of the spring is fixedly connected to the rear end of the fixed cylinder, and the other end is fixedly connected to the first moving block, a limiting rod is fixed on the front end of the first moving block, and the limiting rod is used to pass through the fixed cylinder and insert into the limiting hole.

[0008] Preferably, a third long hole is also opened on the surface of the middle section of the rubber cylinder, first fixed blocks are fixed at both ends of the third long hole, a second screw is rotatably installed between the two first fixed blocks, a second movable block is threadedly connected to the second screw, and the second movable block passes through the third long hole and is fixedly connected to the circular ring plate.

[0009] Preferably, a second fixing block is fixed on the surface of the rear section of the rubber cylinder, the second screw rod extends to the second fixing block and is rotatably connected thereto, and a rotating cylinder is fixed on the extended section of the second screw rod.

[0010] Preferably, the second screw rod is connected to the two first fixing blocks and the second fixing block via bearings.

[0011] Preferably, a soft pad is fixed to the front end of the extrusion plate.

[0012] The utility model provides a glue gun with a quick-change glue nozzle, which has the following beneficial effects:

[0013] The circular ring plate of the utility model can slide back and forth on the inner side wall of the middle section of the rubber cylinder, which is convenient for placing weather-resistant rubber and can adapt to weather-resistant rubber of different lengths. When the rubber outlets of different sizes are replaced according to the requirements of the construction environment, the corresponding rubber nozzles, the rubber outlet holes and the connecting holes can be connected by rotating the rotating cover, and the replacement of the rubber nozzles is very simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the glue gun of the utility model;

[0015] Figure 2 It is a cross-sectional view of the glue gun of the utility model;

[0016] Figure 3 For this utility model Figure 2 The structural diagram at A in the middle;

[0017] Figure 4 The structure of the rotating cover and the nozzle of the utility model is shown in FIG. Figure 1 ;

[0018] Figure 5The structure of the rotating cover and the nozzle of the utility model is shown in FIG. Figure 2 ;

[0019] Figure 6 It is a structural schematic diagram of a glue gun in the prior art.

[0020] In the figure: 1. rubber cylinder; 101. front section of rubber cylinder; 102. middle section of rubber cylinder; 103. rear section of rubber cylinder; 2. first long hole; 3. circular ring plate; 4. circular cavity; 5. connecting hole; 6. insertion hole; 7. rotating cover; 8. limiting ring plate; 9. limiting ring groove; 10. glue outlet hole; 11. glue nozzle; 12. first screw rod; 13. extrusion plate; 14. limiting hole; 15. fixed cylinder; 16. second long hole; 17. first moving block; 18. spring; 19. limiting rod; 20. third long hole; 21. first fixed block; 22. second screw rod; 23. second moving block; 24. second fixed block; 25. rotating cylinder; 26. cushion. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the utility model.

[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Examples, such as Figure 1-5 As shown, a glue gun with a quick-change glue nozzle includes a glue cartridge 1, wherein the glue cartridge 1 is divided into a glue cartridge front section 101, a glue cartridge middle section 102 and a glue cartridge rear section 103, wherein the surface of the glue cartridge middle section 102 is provided with a first long hole 2, and a circular ring plate 3 is slidably mounted on the inner side wall of the glue cartridge middle section 102, a circular cavity 4 is arranged in the glue cartridge front section 101, a connecting hole 5 is arranged on the front end surface of the circular cavity 4, and an insertion hole 6 is arranged on the rear end surface of the circular cavity 4, a rotating cover 7 is rotatably mounted on the outer surface of the glue cartridge front section 101, a limiting ring plate 8 is fixed on the inner side wall of the rotating cover 7, and a The limiting ring groove 9, the limiting ring plate 8 is slidably matched with the limiting ring groove 9, a plurality of glue outlet holes 10 are opened at the bottom of the rotating cover 7, the plurality of glue outlet holes 10 are distributed in an annular manner with equal intervals, the glue outlet holes 10 are adapted to the connecting holes 5, a plurality of glue nozzles 11 are fixedly connected to the front end surface of the rotating cover 7 corresponding to the plurality of glue outlet holes 10, and the plurality of glue nozzles 11 have discharge ports of different sizes, a first screw 12 is passed through and threadedly connected in the rear section 103 of the rubber cylinder, an extrusion disk 13 is rotatably installed at the front end of the first screw 12, and the extrusion disk 13, the circular ring plate 3, and the insertion hole 6 are located on the same axis.

[0026] The working principle of the utility model is as follows: when in use, first move the circular plate 3 to the rear end, put the weather-resistant glue with the head cut off into the rubber cylinder 1 through the first long hole 2, and the front end of the weather-resistant glue is embedded in the insertion hole 6, then move the circular plate 3 forward and sleeve it on the weather-resistant glue, support the weather-resistant glue through the insertion hole 6 and the circular plate 3, and then rotate the first screw 12 to drive the extrusion plate 13 to move forward, and the extrusion plate 13 squeezes the weather-resistant glue, and the glue in the weather-resistant glue passes through the circular cavity 4, the connecting hole 5, and the glue outlet hole 10 and is discharged from the glue nozzle 11 for glue application. The circular plate 3 of the utility model can slide forward and backward on the inner side wall of the middle section 102 of the rubber cylinder, which is convenient for placing weather-resistant glue and can adapt to weather-resistant glue of different lengths. When the glue outlets of different sizes are replaced according to the requirements of the construction environment, the corresponding glue nozzle 11, the glue outlet hole 10 and the connecting hole 5 can be connected by rotating the rotating cover 7, and the replacement of the glue nozzle 11 is very simple and convenient. In this embodiment, four glue nozzles 11 with glue outlets of different sizes are set.

[0027] In a specific embodiment, a plurality of limiting holes 14 are evenly spaced on the top of the side wall of the rotating cover 7, and the number of the limiting holes 14 is the same as the number of the glue outlet holes 10. A fixed cylinder 15 is fixed to the outer surface of the glue cylinder 1, and a second long hole 16 is formed on the surface of the fixed cylinder 15. A first moving block 17 is slidably installed in the second long hole 16. A spring 18 is arranged in the fixed cylinder 15, and one end of the spring 18 is fixedly connected to the rear end of the fixed cylinder 15, and the other end is fixedly connected to the first moving block 17. A limiting rod 19 is fixed to the front end of the first moving block 17, and the limiting rod 19 is used to pass through the fixed cylinder 15 and be inserted into the limiting hole 14.

[0028] After the limiting rod 19 is inserted into the limiting hole 14, the rubber cylinder 1 and the rotating cover 7 are limited and fixed to prevent each other from rotating during glue application. When replacing the glue nozzle 11, the first moving block 17 moves backward to squeeze the spring 18 and pull the limiting rod 19 out of the limiting hole 14, and the rotating cover 7 can rotate freely. When the rotating cover 7 is rotated to connect the corresponding glue nozzle 11 and the glue outlet hole 10 with the connecting hole 5, the first moving block 17 is released. Under the action of the spring 18, the limiting rod 19 can be inserted into the corresponding limiting hole 14 again, and the rubber cylinder 1 and the rotating cover 7 are limited and fixed again.

[0029] In a specific embodiment, a third long hole 20 is further provided on the surface of the middle section 102 of the rubber cylinder, and first fixed blocks 21 are fixed at both ends of the third long hole 20. A second screw 22 is rotatably installed between the two first fixed blocks 21, and a second movable block 23 is threadedly connected to the second screw 22. The second movable block 23 passes through the third long hole 20 and is fixedly connected to the circular ring plate 3.

[0030] The second moving block 23 is threadedly connected to the second screw rod 22. When the second screw rod 22 is rotated, the second moving block 23 moves forward and backward on the second screw rod 22, thereby driving the annular plate 3 to slide forward and backward on the inner side wall of the rubber cylinder middle section 102.

[0031] In a specific embodiment, a second fixed block 24 is fixed to the surface of the rear section 103 of the rubber cylinder, the second screw 22 extends to the second fixed block 24 and is rotatably connected thereto, and a rotating drum 25 is fixed to the extended section of the second screw 22, through which the second screw 22 can be conveniently rotated.

[0032] In a specific embodiment, the second screw rod 22 is connected to the two first fixing blocks 21 and the second fixing block 24 via bearings.

[0033] In a specific embodiment, a soft pad 26 is fixed to the front end of the extrusion plate 13 , and the soft pad 26 plays a certain protective role for the extrusion plate 13 .

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A glue gun with a quick-change glue nozzle, characterized in that: The cam is provided with a first screw threading machine, a second screw threading machine and a second screw threading machine, the second screw threading machine having a first and a second screw threading machine being connected to the cam face.

2. The glue gun with a quick-change glue nozzle according to claim 1, characterized in that: A plurality of limiting holes are provided at equal intervals on the top of the side wall of the rotating cover, and the number of the limiting holes is the same as the glue outlet holes. A fixed cylinder is fixed on the outer surface of the glue cylinder, and a second long hole is provided on the surface of the fixed cylinder. A first moving block is slidably installed in the second long hole. A spring is provided in the fixed cylinder, one end of the spring is fixedly connected to the rear end of the fixed cylinder, and the other end is fixedly connected to the first moving block. A limiting rod is fixed on the front end of the first moving block, and the limiting rod is used to pass through the fixed cylinder and be inserted into the limiting hole.

3. The glue gun with a quick-change glue nozzle according to claim 1, characterized in that: A third long hole is also provided on the surface of the middle section of the rubber cylinder, first fixed blocks are fixed at both ends of the third long hole, a second screw is rotatably installed between the two first fixed blocks, a second movable block is threadedly connected to the second screw, and the second movable block passes through the third long hole and is fixedly connected to the circular ring plate.

4. The glue gun with a quick-change glue nozzle according to claim 3, characterized in that: A second fixing block is fixed on the surface of the rear section of the rubber cylinder, the second screw rod extends to the second fixing block and is rotatably connected thereto, and a rotating cylinder is fixed on the extension section of the second screw rod.

5. The glue gun with a quick-change glue nozzle according to claim 4, characterized in that: The second screw rod is connected to the two first fixing blocks and the second fixing block via bearings.

6. The glue gun with a quick-change glue nozzle according to claim 1, characterized in that: A soft pad is fixed to the front end of the extrusion plate.

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