Sealant gun

Abstract

Comprising a gun body, a driving rod, a piston, a gluing assembly and a self-locking assembly, and the gun body is provided with a glue cavity and a driving cavity. The gluing assembly comprises a driving handle, a driving cylinder, a driven ring, an acting ring, a reset spring and an acting rod. The driving handle is in rolling fit with the arc-shaped face of the actuating rod through the rolling bearing on the connecting shaft, force transmission is optimized, operation is more labor-saving, the force exerting burden of an operator is relieved, long-time operation fatigue is avoided, and the gluing efficiency is remarkably improved. The balls in rolling fit with the driving rod are arranged in the driving cylinder, friction between the balls and the driving rod is reduced, and force burden is further relieved. The gluing assembly of the sealant gun is ingenious and reasonable in design, has obvious advantages compared with a traditional product, and can better meet actual gluing operation requirements.

Description

Technical Field

[0001] This utility model relates to the field of glue gun technology, specifically a sealing glue gun. Background Technology

[0002] In many fields such as building decoration and industrial manufacturing, sealant guns are widely used tools for applying sealant evenly to areas that need to be sealed.

[0003] Traditional sealant guns have some shortcomings in practical use. For example, the existing sealant guns are not labor-saving or efficient enough in terms of their drive structure. The transmission method between the drive handle and the drive rod of some sealant guns is not reasonable enough, which requires the operator to exert a lot of force when pressing the drive handle to apply the sealant. Prolonged operation can easily lead to operator fatigue and reduce work efficiency.

[0004] Therefore, developing a sealant gun that can solve the above problems and has a labor-saving and efficient drive structure, precise glue dispensing control, and a stable and reliable structure is of great practical significance. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a sealing glue gun.

[0006] The technical solution adopted by this utility model is as follows: a sealant gun, including a gun body, a drive rod, a piston connected to the drive rod, a glue dispensing assembly, and a self-locking assembly. The gun body is provided with a glue cavity and a drive cavity. The glue dispensing assembly includes a drive handle rotatably connected to the gun body, an active cylinder movably mounted on the drive rod, a driven ring movably mounted on the drive rod, an actuating ring fixed on the drive rod, a return spring disposed between the actuating ring and the driven ring, and an actuating rod with one end connected to the active cylinder. The end of the actuating rod away from the active cylinder is provided with an arc-shaped surface. The upper end of the drive handle is provided with a connecting shaft. A rolling bearing that rolls with the arc-shaped surface is mounted on the connecting shaft. The active cylinder is provided with balls that roll with the drive rod.

[0007] Furthermore, a guide rod is fixed on the driven ring, and the guide rod slides in conjunction with a guide hole on the actuating ring. The return spring is fitted onto the guide rod between the actuating ring and the driven ring.

[0008] Furthermore, one end of the drive rod extends into the rubber cavity of the gun body and connects to the piston, while the other end, extending out of the gun body, is connected to an operating base.

[0009] Furthermore, the self-locking assembly includes a plurality of wedge plates arranged adjacent to each other along the length of the drive rod, wedge blocks adapted to the wedge plates, an adjusting rod connected to the wedge blocks, and a pressure spring fitted on the adjusting rod.

[0010] Furthermore, the gun body is provided with a spring cavity, one end of the adjusting rod passes through the spring cavity and extends into the drive cavity to connect with the wedge block, and the other end extends out of the gun body and is connected to an operating handle. The adjusting rod located in the spring cavity is provided with a spring plate, one end of the pressure spring is connected to the spring plate, and the other end is connected to the upper wall of the spring cavity.

[0011] The beneficial effects of this utility model are:

[0012] Effortless Operation: The glue application assembly of this application has a reasonable structure and ingenious design. The drive handle rolls with the arc-shaped surface of the actuating rod via a rolling bearing on the connecting shaft, optimizing the force transmission method. During operation, the operator only needs to apply a small force to easily drive the drive handle, which in turn drives the active cylinder to push the drive rod. Compared with traditional sealant guns, this greatly reduces the operator's effort burden, effectively avoids fatigue caused by prolonged operation, and significantly improves glue application efficiency. In addition, the active cylinder is equipped with ball bearings that roll with the drive rod, reducing friction between the active cylinder and the drive rod, further reducing the operator's effort burden.

[0013] Enhancing structural stability and reliability: The coordinated design of the actuating ring, driven ring, and return spring utilizes the driving force on the actuating ring to drive the drive rod, resulting in more stable and reliable operation with less effort. The return spring acts as a buffer and reset mechanism during the glue application process.

[0014] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0017] Figure 3 for Figure 1 Enlarged diagram of point B in the middle.

[0018] Figure 1-3 Components: 1. Gun body; 2. Drive rod; 3. Piston; 4. Rubber cavity; 5. Drive cavity; 6. Drive handle; 7. Active cylinder; 8. Driven ring; 9. Actuating ring; 10. Return spring; 11. Actuating rod; 12. Arc-shaped surface; 13. Connecting shaft; 14. Rolling bearing; 15. Ball bearing; 16. Guide rod; 17. Operating base; 18. Wedge plate; 19. Wedge block; 20. Adjusting rod; 21. Compression spring; 22. Spring cavity; 23. Operating handle; 24. Spring plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] This utility model provides a sealant gun.

[0022] In this embodiment, refer to Figure 1-3 The sealant gun includes a gun body 1, a drive rod 2, a piston 3 connected to the drive rod, a dispensing assembly, and a self-locking assembly. The gun body has a glue cavity 4 and a drive cavity 5. The dispensing assembly includes a drive handle 6 rotatably connected to the gun body 1, an active cylinder 7 movably mounted on the drive rod, a driven ring 8 movably mounted on the drive rod 2, an actuating ring 9 fixed on the drive rod, a return spring 10 disposed between the actuating ring and the driven ring, and an actuating rod 11 connected at one end to the active cylinder. The end of the actuating rod away from the active cylinder has an arc-shaped surface 12. The upper end of the drive handle has a connecting shaft 13, and a rolling bearing 14 that rolls with the arc-shaped surface is mounted on the connecting shaft 13. The active cylinder has a ball bearing 15 that rolls with the drive rod.

[0023] In the above technical solution, the glue application assembly features a reasonable and ingenious design. The drive handle engages with the arc-shaped surface of the actuating rod via a rolling bearing on the connecting shaft. This structure optimizes the force transmission, making operation more effortless. During operation, the operator only needs to apply a small amount of force to easily drive the drive handle, which in turn drives the active cylinder to push the drive rod. Compared to traditional sealant guns, this significantly reduces the operator's effort burden, effectively avoids fatigue caused by prolonged operation, and significantly improves glue application efficiency. Furthermore, the active cylinder contains ball bearings that roll in conjunction with the drive rod, reducing friction between the active cylinder and the drive rod, further reducing the operator's effort burden.

[0024] Specifically, a guide rod 16 is fixed on the driven ring, and the guide rod slides in conjunction with a guide hole on the actuating ring. The return spring is fitted on the guide rod between the actuating ring and the driven ring.

[0025] In the above technical solution, the guide rod on the driven ring slides into the guide hole of the actuating ring, and the return spring is fitted onto the guide rod. This structure effectively enhances the connection stability and motion accuracy between the driven ring and the actuating ring. The guide rod acts as a guide, ensuring that the driven ring does not deviate during movement, guaranteeing that the return spring stably performs its buffering and reset functions, and further improving the reliability of the glue application assembly.

[0026] Specifically, one end of the drive rod extends into the rubber cavity of the gun body and is connected to the piston, while the other end extends out of the gun body and is connected to the operating base 17.

[0027] In the above technical solution, one end of the drive rod is connected to the piston and extends into the glue cavity, while the other end is connected to the operating base and extends out of the gun body. This design allows the operator to easily manually control the drive rod via the operating base, thereby controlling the movement of the piston and extruding the sealant. The operating base increases the convenience and comfort of operation, enhancing the user experience.

[0028] Specifically, the self-locking assembly includes a plurality of wedge plates 18 arranged adjacent to each other along the length of the drive rod, wedge blocks 19 adapted to the wedge plates, an adjusting rod 20 connected to the wedge blocks 19, and a pressure spring 21 fitted on the adjusting rod.

[0029] In the above technical solution, the self-locking component includes a wedge plate, a wedge block, an adjusting rod, and a pressure spring. When the adjusting rod moves, the wedge block and the wedge plate cooperate with each other to lock or unlock the drive rod. This allows the drive rod to be fixed in position as needed during the glue application process, preventing it from accidentally moving backward and ensuring the stability and accuracy of the glue application operation.

[0030] Specifically, the gun body is provided with a spring cavity 22, one end of the adjusting rod passes through the spring cavity and extends into the drive cavity to connect with the wedge block, and the other end extends out of the gun body and is connected to an operating handle 23. The adjusting rod located in the spring cavity is provided with a spring plate 24, one end of the pressure spring is connected to the spring plate, and the other end is connected to the upper wall of the spring cavity.

[0031] In the above technical solution, a spring cavity is provided on the gun body. One end of the adjusting rod is connected to a wedge block that extends into the drive cavity, and the other end is connected to an operating handle that extends out of the gun body. A spring plate and a pressure spring are provided inside the spring cavity. The adjusting rod can be easily controlled via the operating handle, thereby controlling the engagement state (unlocked or locked) of the wedge block and wedge plate, achieving convenient operation of the self-locking function. The pressure spring provides stable pressure, ensuring a tight fit between the wedge block and wedge plate, enhancing the reliability of the self-locking mechanism.

[0032] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A sealant gun, comprising a gun body, a driving rod, a piston connected with the driving rod, a sealant hitting assembly and a self-locking assembly, wherein the gun body is provided with a sealant cavity and a driving cavity, characterized in that: The glue injection assembly comprises a driving handle rotatably connected with the gun body, a driving cylinder movably sleeved on the driving rod, a driven ring movably sleeved on the driving rod, an acting ring fixed on the driving rod, a reset spring arranged between the acting ring and the driven ring, and an acting rod with one end connected with the driving cylinder, wherein an arc surface is arranged on the end of the acting rod away from the driving cylinder, a connecting shaft is arranged on the upper end of the driving handle, a rolling bearing rolling matched with the arc surface is sleeved on the connecting shaft, and rolling balls rolling matched with the driving rod are arranged in the driving cylinder.

2. The sealant gun of claim 1, wherein: A guide rod is fixed on the driven ring and sliding matched with a guide hole on the acting ring, and the reset spring is sleeved on the guide rod between the acting ring and the driven ring.

3. The sealant gun of claim 1, wherein: One end of the driving rod is connected with the piston in the glue cavity of the gun body, and the other end of the driving rod is connected with an operation base.

4. The sealant gun of claim 1, wherein: The self-locking assembly comprises a plurality of wedge-shaped plates arranged adjacent along the length direction of the driving rod, wedge-shaped blocks matched with the wedge-shaped plates, adjusting rods connected with the wedge-shaped blocks, and pressing springs sleeved on the adjusting rods.

5. The sealant gun of claim 4, wherein: A spring cavity is arranged on the gun body, one end of the adjusting rod passes through the spring cavity and extends into the driving cavity to be connected with the wedge-shaped blocks, the other end of the adjusting rod extends out of the gun body and is connected with an operation handle, a spring plate is arranged on the adjusting rod in the spring cavity, one end of the pressing spring is connected with the spring plate, and the other end of the pressing spring is connected with the upper wall of the spring cavity.

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