Glue gun

Abstract

The utility model provides a gluing gun which comprises a gun body, a glue pushing mechanism and a gun barrel used for containing a glue tube, a first threaded section is arranged on the gun body, a second threaded section is arranged on the gun barrel, and the gun body is in threaded connection with the second threaded section on the gun barrel through the first threaded section; the glue pushing mechanism is arranged in the gun body, the glue pushing mechanism comprises a push rod and a driving assembly, the gun body is provided with a containing cavity, the push rod is arranged in the containing cavity in a displaceable mode, and the end, facing the gun barrel, of the push rod abuts against a glue pipe in the gun barrel; the driving assembly is used for driving the push rod to move in the extending direction of the gun barrel so as to push a piston at the bottom of the rubber tube to move. The gluing gun disclosed by the utility model is matched with rubber tubes with different lengths by controlling the length of the threaded connection of the first threaded section and the second threaded section.

Description

Technical Field

[0001] The utility model relates to the technical field of glue spraying equipment, in particular to a glue spraying gun. Background Art

[0002] In daily life and work, we often involve various jobs of gluing, filling, mending and coating, such as gluing and mending different objects together, filling, sealing and patching holes and gaps, or coating and reshaping the surface of objects. Undoubtedly, such jobs require the delivery of some adhesives, glass glues, pastes or fillers with extrudable flow properties to specific target parts.

[0003] In the above operations, we will use a glue gun in conjunction. However, when the current glue gun is used, since the glue gun has a fixed structure, a single glue gun can only use a hose of the same length for gluing, and the glue gun cannot be equipped with hoses of different lengths for gluing. Utility Model Content

[0004] Aiming at the problem that the existing glue gun cannot be equipped with glue hoses of different lengths for glue application, the utility model provides a glue gun.

[0005] The utility model provides a glue gun, comprising a gun body, a glue pushing mechanism and a gun barrel for accommodating a rubber hose, wherein the gun body is provided with a first threaded section, the gun barrel is provided with a second threaded section, and the gun body is threadedly connected with the second threaded section on the gun barrel through the first threaded section;

[0006] The rubber pushing mechanism is arranged in the gun body, and the rubber pushing mechanism includes a push rod and a driving assembly. The gun body is provided with a accommodating cavity, and the push rod is displaceably arranged in the accommodating cavity. One end of the push rod facing the gun barrel abuts against the rubber hose in the gun barrel; the driving assembly is used to drive the push rod to move along the extension direction of the gun barrel to push the piston at the bottom of the rubber hose to move.

[0007] Optionally, the driving assembly includes an air circuit control module, an air circuit, a pressure regulating valve and an exhaust module, and the air outlet end of the air circuit is respectively connected to the accommodating cavity and the exhaust module; the pressure regulating valve is located at the air inlet end of the air circuit, and the air circuit control module is used to control the opening and closing of the air circuit.

[0008] Optionally, a blocking plate and a push plate are respectively provided at both ends of the push rod, the blocking plate is provided at the end of the push rod away from the gun barrel, and the push plate is provided at the end of the push rod facing the gun barrel, and the area ratio of the push plate to the blocking plate is 1:(2.5-3).

[0009] Optionally, a sealing ring is provided between the sealing plate and the inner wall of the accommodating cavity.

[0010] Optionally, the glue gun also includes a connecting piece, on which an exhaust hole, a third thread segment and a fourth thread segment are provided, the third thread segment is threadedly connected to the first thread segment, and the fourth thread segment is threadedly connected to the second thread segment; the exhaust hole is arranged between the third thread segment and the fourth thread segment, and the accommodating cavity located on the side of the sealing plate away from the air outlet end is connected to the exhaust hole.

[0011] Optionally, the exhaust module includes an exhaust pipe and a pressure relief valve, and the pressure relief valve is arranged on the exhaust pipe;

[0012] A three-way valve is provided at the air outlet end of the air circuit, and the three-way valve includes a first interface, a second interface and a third interface which are interconnected, the first interface is connected to the air outlet end, the second interface is connected to the accommodating cavity; the third interface is connected to the exhaust pipe.

[0013] Optionally, the gas circuit control module includes a switch button and a solenoid valve, the solenoid valve is arranged on the gas circuit, and the switch button is connected to the solenoid valve to control the opening and closing of the gas circuit.

[0014] Optionally, the rubber pushing mechanism further includes a guide member, a guide channel is provided in the guide member, and the push rod is displaceably disposed in the guide channel.

[0015] Optionally, an end cover is provided at one end of the gun barrel away from the accommodating chamber, the end cover is threadedly connected to the gun barrel, a limiting flange is provided on the end cover, and the limiting flange abuts against the end of the hose.

[0016] Optionally, the glue gun further includes a flashlight and a mounting seat, wherein the mounting seat is disposed on the gun barrel, and a slot is disposed on the mounting seat, and the flashlight is snapped into the slot.

[0017] In the utility model, the gun body is provided with a first thread segment, the gun barrel is provided with a second thread segment, and the gun body and the gun barrel are threadedly connected through the first thread segment and the second thread segment, so that the replacement of the rubber hose is convenient. At the same time, the length of the threaded connection between the first thread segment and the second thread segment is controlled to match the rubber hoses of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a glue gun provided by an embodiment of the utility model;

[0019] Figure 2 This is a structural schematic diagram of a glue gun provided by an embodiment of the utility model from another angle;

[0020] Figure 3 It is a schematic cross-sectional structure diagram of a glue gun provided by an embodiment of the utility model;

[0021] Figure 4 It is another cross-sectional structural schematic diagram of a glue gun provided by one embodiment of the utility model;

[0022] Figure 5 yes Figure 4 A local enlarged schematic diagram of point A in the middle.

[0023] The reference numerals in the drawings of the specification are as follows:

[0024] 1. Gun body; 11. First threaded section; 12. Accommodating chamber; 13. Tail cover; 14. Handle section; 141. Power button;

[0025] 2. Gun barrel; 21. Second threaded section; 22. End cover; 221. Limiting flange;

[0026] 31. Push rod; 311. Blocking plate; 312. Push plate; 32. Gas circuit; 33. Pressure regulating valve; 34. Sealing ring; 35. Exhaust pipe; 36. Pressure relief valve; 37. Three-way valve; 38. Switch button; 39. Solenoid valve;

[0027] 4. Hose;

[0028] 5. Connecting piece; 51. Exhaust hole; 52. Third thread segment; 53. Fourth thread segment; 54. First limiting boss; 55. Hanging ring;

[0029] 6. Guide member; 61. Second limiting boss;

[0030] 7. Flashlight; 8. Mounting base. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0032] In order to illustrate the technical solution of the present utility model, specific embodiments are provided below for illustration.

[0033] like Figure 1-Figure 5As shown, a glue gun according to one embodiment of the utility model comprises a gun body 1, a glue pushing mechanism and a gun barrel 2 for accommodating a rubber hose 4, wherein the gun body 1 is provided with a first threaded section 11, and the gun barrel 2 is provided with a second threaded section 21, and the gun body 1 is threadedly connected with the second threaded section 21 on the gun barrel 2 through the first threaded section 11. Specifically, when the first threaded section 11 and the second threaded section 21 are directly threadedly connected, the first threaded section 11 and the second threaded section 21 match each other, and when the first threaded section 11 is an internal thread, the second threaded section 21 is an external thread. When the first threaded section 11 is an external thread, the second threaded section 21 is an internal thread. The first threaded section 11 and the second threaded section 21 can also be indirectly connected through an intermediate adapter.

[0034] The rubber pushing mechanism is arranged in the gun body 1, and the rubber pushing mechanism includes a push rod 31 and a driving assembly. The gun body 1 is provided with an accommodating chamber 12, and the push rod 31 is displaceably arranged in the accommodating chamber 12. One end of the push rod 31 facing the gun barrel 2 abuts against the rubber hose 4 in the gun barrel 2. The driving assembly is used to drive the push rod 31 to move along the extension direction of the gun barrel 2 to push the piston at the bottom of the rubber hose 4 to move.

[0035] In the embodiment of the utility model, the gun body 1 is provided with a first threaded section 11, and the gun barrel 2 is provided with a second threaded section 21. The gun body 1 and the gun barrel 2 are threadedly connected through the first threaded section 11 and the second threaded section 21, so as to facilitate the replacement of the rubber hose 4. At the same time, the length of the threaded connection between the first threaded section 11 and the second threaded section 21 is controlled to match the rubber hose 4 of different lengths.

[0036] like Figure 3 As shown, in some embodiments of the utility model, the driving assembly includes an air circuit control module, an air circuit 32, a pressure regulating valve 33 and an exhaust module, and the air outlet end of the air circuit 32 is respectively connected to the accommodating chamber 12 and the exhaust module. The pressure regulating valve 33 is located at the air inlet end of the air circuit 32, and the air circuit control module is used to control the opening and closing of the air circuit 32.

[0037] like Figure 3 As shown, in some embodiments of the utility model, a blocking plate 311 and a push plate 312 are respectively provided at both ends of the push rod 31, the blocking plate 311 is provided at the end of the push rod 31 away from the gun barrel 2, and the push plate 312 is provided at the end of the push rod 31 facing the gun barrel 2, and the area ratio of the push plate 312 to the blocking plate 311 is 1: (2.5-3), thereby increasing the pressure of the push rod 31 pushing the piston at the bottom of the hose 4.

[0038] like Figure 3As shown, in some embodiments of the present invention, a sealing ring 34 is provided between the sealing plate 311 and the inner wall of the accommodating cavity 12 to ensure the air pressure strength in the accommodating cavity 12 on the side of the sealing plate 311 facing the air outlet end.

[0039] like Figure 3-Figure 5 As shown, in some embodiments of the utility model, the glue gun further includes a connecting member 5, on which an exhaust hole 51, a third thread segment 52 and a fourth thread segment 53 are provided, wherein the third thread segment 52 is threadedly connected to the first thread segment 11, and the fourth thread segment 53 is threadedly connected to the second thread segment 21. The exhaust hole 51 is provided between the third thread segment 52 and the fourth thread segment 53, and the accommodating chamber 12 located on the side of the blocking plate 311 away from the gas outlet is connected to the exhaust hole 51. By providing the exhaust hole 51, when the push rod 31 pushes the piston at the bottom of the rubber hose 4 to move, the gas in the accommodating chamber 12 located on the side of the blocking plate 311 away from the gas outlet is discharged, thereby reducing the resistance to the movement of the push rod 31.

[0040] like Figure 3 As shown, in some embodiments of the present invention, the exhaust module includes an exhaust pipe 35 and a pressure relief valve 36 , and the pressure relief valve 36 is disposed on the exhaust pipe 35 .

[0041] The outlet end of the gas circuit 32 is provided with a three-way valve 37, and the three-way valve 37 includes a first interface, a second interface and a third interface that are interconnected, the first interface is connected to the outlet end, the second interface is connected to the accommodating chamber 12, and the third interface is connected to the exhaust pipe 35.

[0042] Further, the gun body 1 includes a tail cover 13, which is arranged at one end of the accommodating chamber 12 away from the gun barrel 2, and is threadedly connected to the gun body 1. The tail cover 13 is used to seal the accommodating chamber 12, and a through hole for connecting with the first interface is provided on the tail cover 13. The tail cover 13 is provided to facilitate installation and replacement of the push rod 31.

[0043] like Figure 3 As shown, in some embodiments of the present invention, the gas circuit control module includes a switch button 38 and a solenoid valve 39, the solenoid valve 39 is arranged on the gas circuit 32, and the switch button 38 is connected to the solenoid valve 39 to control the opening and closing of the gas circuit 32.

[0044] Furthermore, the gas circuit control module includes a lithium battery, which is disposed in the gun body 1 and electrically connected to the battery valve.

[0045] like Figure 2As shown, in some embodiments of the utility model, the gun body 1 includes a handle section 14, and the lithium battery, the pressure regulating valve 33, the switch button 38 and the solenoid valve 39 are all arranged on the handle section 14. The handle section 14 is also provided with a power button 141, and the power button 141 is electrically connected to the lithium battery.

[0046] like Figure 3 As shown, in some embodiments of the utility model, the glue pushing mechanism further includes a guide member 6, a guide channel is provided in the guide member 6, and the push rod 31 is displaceably provided in the guide channel. Specifically, the push plate 312 is provided on the side of the guide member 6 away from the accommodating cavity 12. By providing the guide member 6, the push rod 31 moves along the extension direction of the guide channel, which is convenient for stable glue removal.

[0047] Furthermore, if Figure 5 As shown, the connecting member 5 is a hollow member, the guide member 6 is arranged in the connecting member 5, a first limiting boss 54 is arranged between the first thread segment 11 and the second thread segment 21, and a second limiting boss 61 is arranged at one end of the guide member 6 close to the accommodating cavity 12, one side of the second limiting boss 61 abuts against the outer end surface of the accommodating cavity 12, and the other side of the second limiting boss 61 abuts against the first limiting boss 54. In addition, there is no sealing between the connecting member 5, the guide member 6 and the gun body 1, which facilitates the gas exhaust from the sealing plate 311 toward the side of the gun barrel 2.

[0048] Furthermore, if Figure 1 As shown, a hanging ring 55 is provided on the connecting member 5, so that the glue gun can be hung on the wall when it is idle.

[0049] like Figure 3 As shown, in some embodiments of the utility model, an end cover 22 is provided at one end of the gun barrel 2 away from the accommodating chamber 12, and the end cover 22 is threadedly connected to the gun barrel 2. A limiting flange 221 is provided on the end cover 22, and the limiting flange 221 abuts against the end of the hose 4 to prevent the hose 4 from moving in the gun barrel 2.

[0050] like Figure 1 As shown, in some embodiments of the present invention, the glue gun further includes a flashlight 7 and a mounting seat 8, wherein the mounting seat 8 is disposed on the gun barrel 2, and a slot is disposed on the mounting seat 8, and the flashlight 7 is engaged in the slot. By arranging the flashlight 7 for auxiliary lighting, the position of the visual working area can be achieved.

[0051] In this embodiment, the working process of the glue gun is: open the end cover 22, keep the pressure relief valve pressed, install the rubber hose 4, and then tighten the end cover 22.

[0052] Connect the gas source and control the maximum input working pressure at 8BAR through the pressure regulating valve 33. The pressure value will be displayed on the barometer.

[0053] After pressing the power button 141 , press the switch button 38 , the solenoid valve 39 starts to operate for ventilation, the air path 32 is connected to the accommodating chamber 12 through the tail cover 13 , and the air flow pushes the push rod 31 under the action of air pressure, and the air pressure in front of the push rod 31 is exhausted through the exhaust hole 51 on the connecting piece 5 .

[0054] The push rod 31 pushes the piston at the bottom of the rubber tube 4, thereby achieving rubber discharge.

[0055] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit them. Although the utility model is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can 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 utility model, and should be included in the protection scope of the utility model.

Claims

1. A glue gun, characterized in that: It comprises a gun body, a rubber pushing mechanism and a gun barrel for accommodating a rubber hose, wherein the gun body is provided with a first threaded section, the gun barrel is provided with a second threaded section, and the gun body is threadedly connected with the second threaded section on the gun barrel through the first threaded section; The rubber pushing mechanism is arranged in the gun body, and the rubber pushing mechanism includes a push rod and a driving assembly. The gun body is provided with a accommodating cavity, and the push rod is displaceably arranged in the accommodating cavity. One end of the push rod facing the gun barrel abuts against the rubber hose in the gun barrel; the driving assembly is used to drive the push rod to move along the extension direction of the gun barrel to push the piston at the bottom of the rubber hose to move.

2. The glue gun according to claim 1, characterized in that: The driving assembly includes an air circuit control module, an air circuit, a pressure regulating valve and an exhaust module. The air outlet end of the air circuit is connected to the accommodating chamber and the exhaust module respectively; the pressure regulating valve is located at the air inlet end of the air circuit, and the air circuit control module is used to control the opening and closing of the air circuit.

3. The glue gun according to claim 2, characterized in that: A blocking plate and a push plate are respectively provided at both ends of the push rod. The blocking plate is provided at one end of the push rod away from the gun barrel, and the push plate is provided at one end of the push rod facing the gun barrel. The area ratio of the push plate to the blocking plate is 1:(2.5-3).

4. The glue gun according to claim 3, characterized in that: A sealing ring is arranged between the sealing plate and the inner wall of the accommodating cavity.

5. The glue gun according to claim 3, characterized in that: The glue gun also includes a connecting piece, on which an exhaust hole, a third thread segment and a fourth thread segment are provided. The third thread segment is threadedly connected to the first thread segment, and the fourth thread segment is threadedly connected to the second thread segment. The exhaust hole is provided between the third thread segment and the fourth thread segment, and the accommodating cavity located on the side of the sealing plate away from the air outlet end is connected to the exhaust hole.

6. The glue gun according to claim 2, characterized in that: The exhaust module comprises an exhaust pipe and a pressure relief valve, wherein the pressure relief valve is arranged on the exhaust pipe; A three-way valve is provided at the air outlet end of the air circuit, and the three-way valve includes a first interface, a second interface and a third interface which are interconnected, the first interface is connected to the air outlet end, the second interface is connected to the accommodating cavity; the third interface is connected to the exhaust pipe.

7. The glue gun according to claim 2, characterized in that: The gas circuit control module includes a switch button and a solenoid valve. The solenoid valve is arranged on the gas circuit. The switch button is connected to the solenoid valve to control the opening and closing of the gas circuit.

8. The glue gun according to claim 1, characterized in that: The rubber pushing mechanism also includes a guide member, a guide channel is arranged in the guide member, and the push rod is displaceably arranged in the guide channel.

9. The glue gun according to claim 1, characterized in that: An end cover is arranged at one end of the gun barrel away from the accommodating chamber, the end cover is threadedly connected to the gun barrel, a limiting flange is arranged on the end cover, and the limiting flange abuts against the end of the hose.

10. The glue gun according to claim 1, characterized in that: The glue gun also includes a flashlight and a mounting seat. The mounting seat is arranged on the gun barrel. A card slot is arranged on the mounting seat, and the flashlight is card-connected in the card slot.

Images