Push rod structure of glue gun

Abstract

The utility model relates to the technical field of glue guns, and particularly discloses a push rod structure of a glue gun, which comprises a glue pipe frame, a push rod component arranged in the glue pipe frame, a pressing sheet arranged at the left end of the push rod component, and a driving mechanism arranged in the glue pipe frame and used for driving the push rod component to move. The driving mechanism can drive the push rod assembly to move, so that glue in the glue pipe is squeezed out through the squeezing effect of the pressing piece, and in addition, the connection design between the push rod assembly and the pressing piece ensures that the pressing piece is stressed evenly, and the service life of the glue pipe is prolonged. According to the innovative design, the risk that the pressing piece inclines or is broken due to the fact that the pressing piece bears uneven pressure for a long time is remarkably reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of caulking guns, and particularly relates to a push rod structure of a caulking gun. Background Technique

[0002] A caulking gun is a tool for caulking, and it may be used wherever caulking is required. It is widely used in industries such as building decoration, electronic appliances, automobiles and automotive parts, ships and containers. Most existing caulking guns are inseparable from a hose holder for accommodating a hose and a push rod for pushing the glue. In order to be able to push out the glue more quickly, manufacturers will set a pressing piece at one end of the push rod.

[0003] The push rod on the existing caulking gun is often connected to the edge of the pressing piece. Although the glue can be quickly extruded from the hose, the push rod is connected to the edge of the pressing piece. Since the pressing piece is the stress surface, after long-term use, the pressing piece may be tilted, resulting in the glue flowing out from the other side of the pressing piece. This will not only reduce the caulking accuracy, but also may cause unnecessary waste of glue. Content of the Utility Model

[0004] The purpose of the utility model is to provide a push rod structure of a caulking gun to solve the problems of uneven overall stress of the pressing piece and tilt or breakage of the pressing piece after long-term stress in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A push rod structure of a caulking gun, including a hose holder, a push rod assembly is arranged inside the hose holder, a pressing piece is arranged at the left end of the push rod assembly, and a driving mechanism is arranged inside the hose holder, and the driving mechanism is used to drive the push rod assembly to move.

[0007] Preferably: the push rod assembly includes a limiting rod and a threaded rod. The limiting rod is slidably connected inside the hose holder. Connecting rods are fixedly connected to both the left and right ends of the limiting rod, and a threaded rod is fixedly connected between the lower ends of the two groups of connecting rods.

[0008] Preferably: a push rod is fixedly connected to the right end of the connecting rod located on the right side of the limiting rod, and a pressing piece is fixedly connected to the right end of the push rod.

[0009] Preferably: support rods are fixedly connected to the side wall of the push rod at equal intervals, and one end of the support rod away from the push rod is fixedly connected to the left end of the pressing piece.

[0010] Preferably, the driving mechanism includes a motor and a threaded sleeve. The threaded sleeve is rotatably connected inside the hose holder. The right end of the threaded sleeve penetrates through the right end face of the hose holder. The inner wall of the threaded sleeve is threadedly connected to the outer wall of the threaded rod. A second gear is fixedly connected to the side wall of the threaded sleeve, and the second gear is located inside the hose holder.

[0011] Preferably, a motor is fixedly connected inside the hose holder. A first gear is fixedly connected to the output shaft end of the motor, and the first gear meshes with the second gear.

[0012] Preferably, a handle is fixedly connected to the lower end of the hose holder. A control button is arranged at the left end of the handle, and the control button is used to control the start and stop of the motor.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the cooperation of the threaded rod, connecting rod, limiting rod, push rod and threaded sleeve provided in the present utility model, when the threaded sleeve rotates, the threaded rod can be smoothly pushed, and then the push rod moves, ensuring that the glue extrusion process is more stable.

[0015] 2. By positioning the push rod at the center position of the pressing plate and using the support rod to reinforce the edge of the pressing plate, the present utility model realizes the uniform distribution of the force on the pressing plate. This design effectively avoids the phenomenon of the pressing plate tilting or breaking due to long-term uneven force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall front view structural schematic diagram of the present utility model;

[0017] Figure 2 is the overall rear view sectional plane structural schematic diagram of the present utility model;

[0018] Figure 3 is the top view sectional structural schematic diagram of the hose holder of the present utility model;

[0019] Figure 4 is the overall structural schematic diagram of the push rod assembly of the present utility model.

[0020] In the figure: 1. Hose holder; 2. Push rod assembly; 21. Limiting rod; 22. Threaded rod; 23. Connecting rod; 24. Propelling rod; 25. Support rod; 3. Pressing plate; 4. Driving mechanism; 41. Motor; 42. First gear; 43. Second gear; 44. Threaded sleeve; 5. Handle; 6. Control button. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Referring to Figure 1 - Figure 2 As shown, the present invention provides a push rod structure of a caulking gun, including a hose holder 1. A push rod assembly 2 is arranged inside the hose holder 1. A pressing piece 3 is arranged at the left end of the push rod assembly 2. A driving mechanism 4 is arranged inside the hose holder 1. The driving mechanism 4 is used to drive the push rod assembly 2 to move; by arranging the driving mechanism 4, the push rod assembly 2 can be driven to move, so as to extrude the glue in the hose through the extrusion of the pressing piece 3. In addition, the connection design between the push rod assembly 2 and the pressing piece 3 ensures the balanced force on the pressing piece 3. This innovative design significantly reduces the risk of the pressing piece 3 tilting or breaking due to long-term uneven pressure.

[0023] In a further embodiment, referring to Figure 2 and Figure 4 , the push rod assembly 2 includes a limiting rod 21 and a threaded rod 22. The limiting rod 21 is slidably connected inside the hose holder 1. Connecting rods 23 are fixedly connected to both the left and right ends of the limiting rod 21. A threaded rod 22 is fixedly connected between the lower ends of the two groups of connecting rods 23. A push rod 24 is fixedly connected to the right end of the connecting rod 23 located on the right side of the limiting rod 21. A pressing piece 3 is fixedly connected to the right end of the push rod 24.

[0024] In this embodiment, through the cooperation of the limiting rod 21 and the connecting rod 23, the threaded sleeve 44 can push the threaded rod 22 to move during rotation. The movement of the threaded rod 22 drives the push rod to move, and the movement of the push rod drives the pressing piece 3 to move, so as to extrude the glue in the hose through the extrusion of the pressing piece 3.

[0025] In a further embodiment, referring to Figure 2 and Figure 4 , support rods 25 are fixedly connected to the side wall of the push rod 24 at equal intervals. One end of the support rod 25 away from the push rod 24 is fixedly connected to the left end of the pressing piece 3.

[0026] In this embodiment, by strengthening the edge of the pressing piece 3 through the support rod 25, the uniform distribution of the force on the pressing piece 3 is realized. This design effectively avoids the phenomenon of the pressing piece 3 tilting or breaking due to long-term uneven force.

[0027] In a further embodiment, referring to Figure 2 - Figure 3, the driving mechanism 4 includes a motor 41 and a threaded sleeve 44. The threaded sleeve 44 is rotatably connected inside the hose bracket 1. The right end of the threaded sleeve 44 penetrates through the right end face of the hose bracket 1. The inner wall of the threaded sleeve 44 is threadedly connected to the outer wall of the threaded rod 22. A second gear 43 is fixedly connected to the side wall of the threaded sleeve 44. The second gear 43 is located inside the hose bracket 1. A motor 41 is fixedly connected inside the hose bracket 1. The output shaft end of the motor 41 is fixedly connected to a first gear 42. The first gear 42 meshes with the second gear 43. A handle 5 is fixedly connected to the lower end of the hose bracket 1. A control button 6 is arranged at the left end of the handle 5. The control button 6 is used to control the start and stop of the motor 41.

[0028] In this embodiment, by holding the handle 5 and pressing the control button 6, the motor 41 can be started. The started motor 41 drives the first gear 42 to rotate. The rotation of the first gear 42 drives the second gear 43 to rotate. The rotation of the second gear 43 drives the threaded sleeve 44 to rotate, thereby providing power for the rotation of the threaded sleeve 44.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A push rod structure of a caulking gun, comprising a hose holder (1), characterized in that, Inside the hose holder (1), a push rod assembly (2) is provided. A pressing piece (3) is arranged at the left end of the push rod assembly (2). A driving mechanism (4) is provided inside the hose holder (1), and the driving mechanism (4) is used to drive the push rod assembly (2) to move.

2. The push rod structure of a caulking gun according to claim 1, wherein: The push rod assembly (2) includes a limiting rod (21) and a threaded rod (22). The limiting rod (21) is slidably connected inside the hose holder (1). Connecting rods (23) are fixedly connected to both the left and right ends of the limiting rod (21). A threaded rod (22) is fixedly connected between the lower ends of the two groups of connecting rods (23).

3. The push rod structure of a sealant gun according to claim 2, characterized in that: A push rod (24) is fixedly connected to the right end of the connecting rod (23) located on the right side of the limiting rod (21). A pressing piece (3) is fixedly connected to the right end of the push rod (24).

4. The push rod structure of a caulking gun according to claim 3, wherein: Support rods (25) are fixedly connected to the side wall of the push rod (24) at equal intervals. One end of the support rod (25) away from the push rod (24) is fixedly connected to the left end of the pressing piece (3).

5. The push rod structure of a sealant gun according to claim 1, characterized in that: The driving mechanism (4) includes a motor (41) and a threaded sleeve (44). The threaded sleeve (44) is rotatably connected inside the hose holder (1). The right end of the threaded sleeve (44) penetrates through the right end face of the hose holder (1). The inner wall of the threaded sleeve (44) is threadedly connected to the outer wall of the threaded rod (22). A second gear (43) is fixedly connected to the side wall of the threaded sleeve (44), and the second gear (43) is located inside the hose holder (1).

6. The push rod structure of a caulking gun according to claim 1, wherein: A motor (41) is fixedly connected inside the hose holder (1). A first gear (42) is fixedly connected to the output shaft end of the motor (41). The first gear (42) meshes with the second gear (43).

7. The push rod structure of a sealant gun according to claim 1, wherein: A handle (5) is fixedly connected to the lower end of the hose holder (1). A control button (6) is arranged at the left end of the handle (5), and the control button (6) is used to control the start and stop of the motor (41).

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