Sealant spraying gun

Abstract

The sealant spraying gun comprises a pipe body, a piston cavity is arranged in the pipe body, one end of the pipe body is in threaded connection with a gun head, the other end of the pipe body is provided with a screw hole, and a plurality of guide ribs are arranged on the inner wall of the piston cavity at intervals; the piston assembly comprises a piston body and a guide block which are stacked and coaxially arranged. The outer wall of the guide block is provided with a guide groove in sliding fit with the guide rib. One end of the screw extends into the screw hole to be connected with the guide block, and the other end extends out of the pipe body to be connected with the handle. The hydraulic cylinder has the advantages that the piston is precisely guided to move through precise sliding fit of the guide block and the guide rib, piston inclination during screw driving is avoided, and piston movement stability is improved; the problems that sealant is difficult to extrude and a piston is stuck are solved, continuous and stable work of the gluing gun is guaranteed, the gluing efficiency is improved, and the working intensity of operators is reduced. Friction abrasion between the piston and the pipe body is reduced, part damage caused by piston clamping is avoided, the service life of all parts is prolonged, the maintenance cost and the replacement frequency are reduced, and the overall economical efficiency of equipment is improved.

Description

Technical Field

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

[0002] In the application of sealants, the sealant applicator gun is a common and important tool. It extrudes sealant from the tube for various sealing and bonding applications, and has wide applications in many fields such as construction, machinery manufacturing, and automotive repair.

[0003] Existing sealant application guns have several structural design flaws that require improvement. One key issue is the guiding of the piston's movement within the tube. In traditional application guns, the piston's movement within the tube often lacks an effective guiding mechanism. When the piston is driven by a screw, the lack of precise guidance makes it prone to tilting during movement. Once the piston tilts, the sealant is subjected to uneven force during extrusion, leading to difficulty in application. In severe cases, the piston may even jam, rendering the application gun unusable. This not only reduces application efficiency and increases the operator's workload but also affects the sealant's effectiveness, ultimately impacting the final sealing or bonding quality.

[0004] Therefore, in order to solve the above-mentioned problems of existing sealant caulking guns, a new sealant caulking gun structure is needed that can effectively guide the movement of the piston, prevent the piston from tilting, ensure the stable and efficient operation of the caulking gun, improve the quality and efficiency of caulking operations, and reduce the cost of use. Utility Model Content

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

[0006] The technical solution adopted in this utility model is: a sealant applicator gun, comprising:

[0007] The tube body has a piston chamber inside, one end of the tube body is threaded to a gun head, and the other end of the tube body has a screw hole. The inner wall of the piston chamber is provided with several guide ridges at intervals.

[0008] A piston assembly, comprising a piston body and a guide block, wherein the piston body and the guide block are stacked and coaxially arranged, and a plurality of guide grooves that slide in cooperation with guide protrusions are provided at intervals on the outer wall of the guide block;

[0009] A screw, one end of which extends from the screw hole into the piston chamber and is connected to the guide block, and the other end extends out of the tube body and is connected to a handle.

[0010] Furthermore, there are four guide grooves and four guide protrusions.

[0011] Furthermore, rolling steel balls are movably installed on the bottom wall of the guide groove.

[0012] Furthermore, a screw block is fixed to one end of the tube body located in the screw hole, and the screw block is threadedly connected to the screw.

[0013] Furthermore, a sealing ring is provided between the screw block and the inner wall of the tube.

[0014] Furthermore, a threaded section is provided on one end of the tube body, and the gun head is threadedly connected to the threaded section.

[0015] Furthermore, a sealing ring 2 is provided between the threaded section and the gun head.

[0016] The beneficial effects of this utility model are:

[0017] 1. Effectively Prevents Piston Tilt: A specialized guide block is incorporated, with several guide grooves on its outer wall that slide against guide protrusions, forming a precise sliding fit with the guide protrusions on the inner wall of the piston cavity within the tube. This guiding structure precisely guides the piston's movement, ensuring smooth movement along a predetermined trajectory within the tube, effectively preventing piston tilting during screw-driven operation. Compared to traditional glue guns, this significantly improves the stability of piston movement.

[0018] 2. Solves the problems of difficult extrusion and jamming: By effectively preventing piston tilting, the sealant can be evenly compressed, thus smoothly extruding from the gun head and solving the problem of difficult extrusion. At the same time, it also avoids jamming caused by piston tilting, ensuring that the caulking gun can work continuously and stably, improving the efficiency of caulking operations, reducing downtime caused by equipment failure, and reducing the workload of operators.

[0019] 3. Enhanced component lifespan: The stability of piston movement reduces friction and wear between the piston and the tube, minimizing abnormal wear between components. Simultaneously, it prevents component damage caused by piston jamming, extending the lifespan of all parts of the caulking gun, reducing equipment maintenance costs and replacement frequency, and improving the overall economic efficiency of the equipment.

[0020] 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

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2This is a cross-sectional schematic diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the guide block structure.

[0024] Figure 1-3 In the middle: 1. Tube body; 2. Piston chamber; 3. Gun head; 4. Screw hole; 5. Guide ridge; 6. Piston body; 7. Guide block; 8. Guide groove; 9. Screw; 11. Handle; 12. Rolling steel ball; 13. Screw block; 14. Sealing ring one; 15. Threaded section; 16. Sealing ring two. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] This utility model provides a sealant applicator gun.

[0028] In this embodiment, refer to Figure 1-3 The sealant applicator includes:

[0029] The tube body 1 has a piston chamber 2 inside. One end of the tube body 1 is threaded to a gun head 3, and the other end of the tube body has a screw hole 4. The inner wall of the piston chamber 2 is provided with several guide ridges 5 at intervals.

[0030] A piston assembly, comprising a piston body 6 and a guide block 7, wherein the piston body 6 and the guide block 7 are stacked and coaxially arranged, and a plurality of guide grooves 8 are provided at intervals on the outer wall of the guide block to slide and engage with guide protrusions;

[0031] The screw 9 has one end extending from the screw hole into the piston chamber and connected to the guide block, and the other end extending out of the tube body and connected to the handle 11.

[0032] In the above technical solution, a complete glue gun working system is formed through the structural design of the tube body, piston assembly, and screw. The piston chamber inside the tube provides space for piston movement, and the threaded connection of the gun head facilitates the installation and removal of different specifications of gun heads to meet different glue application needs. The guide ridges on the inner wall of the piston chamber slide in conjunction with the guide grooves on the guide block in the piston assembly, which can precisely guide the movement of the piston and prevent the piston from tilting during screw driving, thereby preventing problems such as extrusion difficulties or jamming, and ensuring the stability and reliability of the glue gun operation. The screw is connected to the guide block and driven by the handle, allowing the operator to easily control the movement of the piston and realize the extrusion operation of the sealant.

[0033] Specifically, there are four guide grooves and four guide protrusions.

[0034] In this embodiment, the number of guide grooves and guide protrusions is set to four, which can ensure effective guidance of the piston assembly while reasonably distributing the guiding force, making the piston move more smoothly and evenly in the piston cavity.

[0035] Specifically, rolling steel balls 12 are movably installed on the bottom wall of the guide groove.

[0036] In this embodiment, rolling steel balls are movably installed on the bottom wall of the guide groove, which can convert the sliding friction between the guide block and the guide protrusion into rolling friction. The frictional force of rolling friction is relatively small, which makes the guide block slide more smoothly along the guide protrusion, reduces the resistance during the movement of the piston assembly, reduces energy loss, and improves the efficiency of the glue application operation.

[0037] Specifically, a screw block 13 is fixed on one end of the tube body located in the screw hole, and the screw block 13 is threadedly connected to the screw.

[0038] In this embodiment, a screw block is fixed at one end of the tube body located in the screw hole and threadedly connected to the screw, providing a stable threaded fit structure for the screw. The screw block enhances the connection stability between the screw and the tube body, enabling the screw to more accurately convert rotational motion into linear motion when rotating to drive the piston, thus improving transmission efficiency.

[0039] Specifically, a sealing ring 14 is provided between the screw block and the inner wall of the tube.

[0040] In this embodiment, a sealing ring 14 is provided between the screw block and the inner wall of the tube, which can effectively prevent other impurities from entering the tube body through the gap between the screw block and the inner wall of the tube, thus avoiding contamination and damage to the internal structure of the glue gun.

[0041] Specifically, a threaded section 15 is provided on one end of the tube body, and the gun head is threadedly connected to the threaded section.

[0042] In this embodiment, a threaded section is provided at one end of the tube and is threadedly connected to the gun head. This connection method makes the installation and removal of the gun head more convenient and quick.

[0043] Specifically, a sealing ring 16 is provided between the threaded section and the gun head.

[0044] In this embodiment, a second sealing ring is provided between the threaded section and the nozzle, further enhancing the sealing performance between the nozzle and the tube body. This effectively prevents sealant leakage from the threaded connection, ensuring that all sealant can be squeezed out from the nozzle, improving sealant utilization and avoiding waste.

[0045] 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 dispensing gun, characterized by The utility model relates to a kind of gun head and screw rod type high-pressure air gun, including: Pipe body, piston cavity is equipped in the pipe body, one end of pipe body is threadedly connected with gun head, the other end of pipe body is equipped with screw rod hole, the inner wall of the piston cavity is intervally provided with several guide convex ribs; Piston assembly, the piston assembly includes piston main body and guide block, the piston main body and guide block are stacked and coaxially arranged, the outer wall of the guide block is intervally provided with several guide grooves with guide convex rib sliding cooperation; Screw rod, one end of the screw rod is connected with guide block from screw rod hole into piston cavity, the other end is connected with handle and extends out of pipe body.

2. The sealant dispensing gun according to claim 1, wherein: The guide groove and guide convex rib are all four.

3. The sealant dispensing gun of claim 1, wherein: Rolling steel ball is movably mounted on the bottom wall of the guide groove.

4. The sealant dispensing gun of claim 1, wherein: Screw block is fixed on one end of the pipe body in screw rod hole, and the screw block is threadedly connected with the screw rod.

5. The sealant dispensing gun of claim 4, wherein: Sealing ring one is arranged between the screw block and the inner wall of the pipe body.

6. The sealant dispensing gun of claim 1, wherein: Threaded section is arranged on one end of the pipe body, and the gun head is threadedly connected with the threaded section.

7. The sealant dispensing gun of claim 6, wherein: Sealing ring two is arranged between the threaded section and the gun head.

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