A new type of handheld pneumatic AB glue gun

Abstract

The application discloses a novel handheld pneumatic AB glue gun, which comprises a cylinder assembly, a top cover and a connecting block. The cylinder assembly comprises a glue cylinder and a pair of air cylinders. The shape of the glue cylinder is suitable for placing a double-tube AB glue assembly. The pair of air cylinders are arranged in parallel and orthogonally with the glue cylinder. The center of the connecting block is provided with an air pipe joint for connecting compressed air. The connecting block is internally provided with an air path. A pair of piston assemblies and a pair of glue pushing assemblies are orthogonally arranged at positions opposite to the glue cylinder and the air cylinders, respectively. One end of each of the pair of piston assemblies is connected to the air pipe joint through the air path in the connecting block. The other end of each of the pair of piston assemblies is slidably connected in the interior of a corresponding one of the pair of air cylinders. Each of the pair of glue pushing assemblies faces the tail part of the glue pipe in the double-tube AB glue assembly. The top cover fixes the head part of the glue pipe of the double-tube AB glue assembly on the cylinder assembly. The glue pipe and the air cylinder are arranged in parallel, so that the overall gravity center is relatively close to the handle, and the fatigue strength of the operator is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of AB glue gun technology, and in particular to a novel handheld pneumatic AB glue gun. Background Technology

[0002] The use of AB glue is very common in industries such as engineering construction, home renovation, and industrial production. Currently, most AB glue guns on the market are manual or traditional pneumatic AB glue guns. Manual glue guns are very laborious when dealing with high-viscosity and large-volume AB glue, easily causing operator fatigue. Traditional pneumatic AB glue guns have a series-connected hose and cylinder, resulting in a long overall length and a center of gravity far from the handle. The overturning moment generated by this center of gravity also easily leads to operator fatigue, and the long, large-volume hose further increases the fatigue intensity.

[0003] Therefore, those skilled in the art are dedicated to developing a new type of handheld pneumatic AB glue gun to reduce operator fatigue and improve operational efficiency. Summary of the Invention

[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is how to reduce operator fatigue and improve operating efficiency.

[0005] To achieve the above objectives, the present invention provides a novel handheld pneumatic AB glue gun, comprising a cylinder assembly, a top cover, and a connecting block. The cylinder assembly includes a glue cylinder and a pair of air cylinders. The shape of the glue cylinder is adapted to accommodate a dual-tube AB glue assembly. The pair of air cylinders are arranged orthogonally to the glue cylinder. An air pipe connector is provided at the center of the connecting block for connecting compressed air. An air passage is provided inside the connecting block. A pair of piston assemblies and a pair of glue-pushing assemblies are orthogonally arranged opposite the connecting block to the glue cylinder and the air cylinders, respectively. One end of each of the pair of piston assemblies is connected to the air pipe connector through the air passage inside the connecting block. The other end of each of the pair of piston assemblies is slidably connected inside the corresponding one of the pair of air cylinders. Each of the pair of glue-pushing assemblies faces the tail end of the glue tube in the dual-tube AB glue assembly. The top cover is configured to fix the head of the glue tube of the dual-tube AB glue assembly onto the cylinder assembly.

[0006] Furthermore, the dual-tube AB glue assembly includes dual-tube AB glue and a glue gun head used in conjunction with the dual-tube AB glue.

[0007] Furthermore, the cylinder assembly is integrally formed.

[0008] Furthermore, it also includes a handle, which is mounted on the cylinder assembly and has an embedded electrical switch.

[0009] Furthermore, the tail of the glue cylinder has flange edges on both sides, and the top cover is detachably connected to the flange edges.

[0010] Furthermore, each of the rubber cylinder and the pair of cylinders is independent of each other.

[0011] Furthermore, each of the pair of piston assemblies includes a piston rod and a piston, one end of the piston rod is connected to the connecting block, the other end of the piston rod is connected to the piston, and the piston rod is provided with an air passage communicating with the air passage inside the connecting block and the air passage inside the cylinder.

[0012] Furthermore, the piston has a first O-ring groove on its outer periphery, and a first O-ring is provided in the first O-ring groove, which is sealed to the inner wall of the corresponding cylinder in the pair.

[0013] Furthermore, each of the pair of cylinders has a head opening and a tail end provided with a cylinder piston hole that allows the piston rod to extend and retract. The inner wall of the cylinder piston hole is provided with a second O-ring groove, and a second O-ring is provided in the second O-ring groove to seal and connect with the corresponding piston rod.

[0014] Furthermore, each of the pair of adhesive dispensing assemblies includes a push rod and a push head, one end of the push rod being connected to the connecting block and the other end of the push rod being connected to the push head, the push head being positioned facing the corresponding end of the adhesive tube in the dual-tube AB adhesive assembly.

[0015] The beneficial effects of this invention are as follows: by arranging the hose and cylinder side by side, the overall center of gravity is closer to the handle, which greatly reduces the fatigue of the operator.

[0016] The following will further explain the concept, specific structure, and technical effects of the present invention in conjunction with the accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Attached Figure Description

[0017] Figure 1 This is an exploded view of an AB glue gun according to a preferred embodiment of the present invention;

[0018] Figure 2 This is a rear view of an AB glue gun according to a preferred embodiment of the present invention;

[0019] Figure 3 It is along Figure 2 A cross-sectional view along the AA direction;

[0020] Figure 4 This is a schematic diagram of the overall center of gravity of an AB glue gun with the piston rod in the extended state, according to a preferred embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the overall center of gravity of an AB glue gun with the piston rod in a retracted state, according to a preferred embodiment of the present invention.

[0022] Among them, 1-Double tube AB glue assembly, 2-Top cover, 3-Piston assembly, 4-Cylinder assembly, 5-Handle, 6-Glue pushing assembly, 7-Connecting block, 8-Air pipe connector, 9-Overall center of gravity. Detailed Implementation

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0024] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0025] Example

[0026] This embodiment provides a novel handheld pneumatic AB glue gun, including a cylinder assembly 4, a top cover 2, a connecting block 7, and a handle 5. The cylinder assembly 4 includes a glue cylinder and a pair of air cylinders. The shape of the glue cylinder is suitable for placing a dual-tube AB glue assembly 1. The pair of air cylinders are arranged orthogonally to the glue cylinder. The center of the connecting block 7 is provided with an air pipe connector 8 for connecting compressed air. An air passage is provided inside the connecting block 7. A pair of piston assemblies 3 and a pair of glue-pushing assemblies 6 are orthogonally arranged opposite the connecting block 7 to the glue cylinder and air cylinders, respectively. One end of each piston assembly 3 is connected to the air pipe connector 8 inside the connecting block 7. The other end of each piston assembly 3 is slidably connected inside the corresponding air cylinder. Each glue-pushing assembly 6 is positioned facing the tail end of the corresponding glue tube in the dual-tube AB glue assembly 1. The top cover 2 fixes the glue tube head of the dual-tube AB glue assembly 1 to the cylinder assembly. The handle 5 is installed on the cylinder assembly 4 and has an embedded electrical switch.

[0027] Preferably, the dual-tube AB glue assembly 1 includes dual-tube AB glue and a glue gun head used in conjunction with the dual-tube AB glue.

[0028] Preferably, the cylinder block assembly 4 is integrally formed.

[0029] Preferably, the tail of the cylinder has flange edges on both sides, and the top cover 2 is detachably connected to the flange edges.

[0030] Preferably, each of the rubber cylinder and the pair of cylinders is independent of each other.

[0031] Preferably, each piston assembly 3 includes a piston rod and a piston, one end of the piston rod is connected to the connecting block 7, the other end of the piston rod is connected to the piston, and the piston rod is provided with an air passage that communicates with the air passage inside the connecting block 7 and the air passage inside the cylinder.

[0032] Preferably, the piston has a first O-ring groove on its outer periphery, and a first O-ring is provided in the first O-ring groove, which is sealed to the inner wall of the corresponding cylinder.

[0033] Preferably, each cylinder has a head opening and a tail end with a cylinder piston hole that allows the piston rod to extend and retract. The inner wall of the cylinder piston hole is provided with a second O-ring groove, and a second O-ring is provided in the second O-ring groove to seal and connect with the corresponding piston rod.

[0034] Preferably, each adhesive applicator 6 includes a push rod and a push head. One end of the push rod is connected to the connecting block 7, and the other end of the push rod is connected to the push head. The push head is positioned facing the tail end of the corresponding adhesive tube in the dual-tube AB adhesive assembly 1.

[0035] This novel handheld pneumatic AB glue gun can be used for applying AB glue. Air hose connector 8 connects to compressed air, and an electrical switch connects to a solenoid valve to control the airflow. Different sizes can be customized to suit various working conditions and different specifications of AB glue.

[0036] Install handle 5 on cylinder assembly 4, glue air pipe connector 8 to connecting block 7, glue adhesive push assembly 6 to the corresponding hole in connecting block 7, pass piston assembly 3 through cylinder piston hole of cylinder assembly 4, glue it to the corresponding hole in connecting block 7, install double tube AB glue assembly 1 into glue cylinder of cylinder assembly 4, and then rotate top cover 2 onto flange edge of glue cylinder. After installation, press electrical switch to control compressed air on / off to perform glue application.

[0037] After the electrical switch is pressed to turn on the air, the compressed air in the air pipe connector 8 enters the axial hole of the piston assembly 3 through the air passage in the connecting block 7, and then enters the cylinder of the cylinder assembly 4. Under the pulling force of the piston assembly 3, the connecting block 7 drives the glue pushing assembly 6 to squeeze the AB glue forward, thereby realizing the glue application operation.

[0038] Beneficial effects

[0039] Compared to current pneumatic AB glue guns, this application optimizes the structure by using parallel cylinders and glue cylinders, and rationally distributes the weight of each component while meeting mechanical strength requirements, thus achieving a significant advantage in center of gravity distribution. The piston, throughout its entire stroke, such as... Figure 4 and Figure 5 As shown, the overall center of gravity 9 (marked by black and white dots) is within the range of the handle center (+6mm, -9mm), so the operator is less affected by the overturning force of the center of gravity, which can greatly reduce fatigue intensity and thus improve work efficiency.

[0040] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A novel handheld pneumatic AB glue gun, characterized in that, The device includes a cylinder assembly, a top cover, and a connecting block. The cylinder assembly includes a glue cylinder and a pair of air cylinders. The shape of the glue cylinder is suitable for placing a dual-tube AB glue assembly. The pair of air cylinders are arranged orthogonally to the glue cylinder. The connecting block has an air pipe connector at its center for connecting compressed air. An air passage is provided inside the connecting block. A pair of piston assemblies and a pair of glue-pushing assemblies are arranged orthogonally to the connecting block, the glue cylinder, and the air cylinders, respectively. One end of each of the pair of piston assemblies is connected to the air pipe connector through the air passage inside the connecting block. The other end of each of the pair of piston assemblies is slidably connected inside the corresponding one of the pair of air cylinders. Each of the pair of glue-pushing assemblies faces the tail end of the glue tube in the dual-tube AB glue assembly. The top cover is configured to fix the head of the glue tube of the dual-tube AB glue assembly onto the cylinder assembly.

2. The novel handheld pneumatic AB glue gun as described in claim 1, characterized in that, The dual-tube AB glue assembly includes dual-tube AB glue and a glue gun head used in conjunction with the dual-tube AB glue.

3. The novel handheld pneumatic AB glue gun as described in claim 1, characterized in that, The cylinder block assembly is integrally molded.

4. The novel handheld pneumatic AB glue gun as described in claim 1, characterized in that, It also includes a handle, which is mounted on the cylinder assembly and has an embedded electrical switch.

5. The novel handheld pneumatic AB glue gun as described in claim 1, characterized in that, The cylinder has flange edges on both sides of its tail end, and the top cover is detachably connected to the flange edges.

6. The novel handheld pneumatic AB glue gun as described in claim 1, characterized in that, The rubber cylinder and each of the pair of cylinders are independent of each other.

7. The novel handheld pneumatic AB glue gun as described in claim 1, characterized in that, Each of the pair of piston assemblies includes a piston rod and a piston, one end of the piston rod being connected to the connecting block and the other end of the piston rod being connected to the piston, and the piston rod having an internal air passage communicating with the interior of the connecting block and the interior of the cylinder.

8. The novel handheld pneumatic AB glue gun as described in claim 7, characterized in that, The piston has a first O-ring groove on its outer periphery, and a first O-ring is provided in the first O-ring groove, which is sealed to the inner wall of the corresponding one of the pair of cylinders.

9. The novel handheld pneumatic AB glue gun as described in claim 8, characterized in that, Each of the pair of cylinders has a head opening and a tail end with a cylinder piston hole that allows the piston rod to extend and retract. The inner wall of the cylinder piston hole is circumferentially provided with a second O-ring groove, and a second O-ring is provided in the second O-ring groove to seal and connect with the corresponding piston rod.

10. The novel handheld pneumatic AB glue gun as described in claim 1, characterized in that, Each of the pair of adhesive applicator assemblies includes an applicator rod and an applicator head. One end of the applicator rod is connected to the connecting block, and the other end of the applicator rod is connected to the applicator head. The applicator head is positioned facing the tail end of the corresponding adhesive tube in the dual-tube AB adhesive assembly.

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