Glue gun for construction of polyurethane foam joint mixture

Abstract

The utility model discloses a glue gun for construction of a polyurethane foam joint mixture, and relates to the technical field of general spraying or atomization. The glue gun for polyurethane foam joint mixture construction comprises a second gun barrel, a spray pipe fixing assembly comprises a joint mixture spray pipe, and the joint mixture spray pipe is in threaded connection with the second gun barrel; wherein a first nut is fixedly connected to the surface of the joint mixture spraying pipe, a first sealing gasket sleeves the surface of the joint mixture spraying pipe, a second nut sleeves the surface of the second gun barrel in a threaded mode, and the first nut, the second nut and a third nut are disassembled through a wrench, so that the joint mixture spraying pipe and the joint mixture spraying head can be disassembled conveniently; the joint mixture spray pipe and the joint mixture spray head can be conveniently detached and cleaned, blockage of the joint mixture spray pipe and the joint mixture spray head is avoided, internal residues can be conveniently cleaned, normal use of the glue gun is ensured, the service life of the glue gun is prolonged, the joint mixture spray pipe and the joint mixture spray head can be conveniently stored, and the working quality and efficiency are improved; and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of general spraying or atomization, and particularly relates to a glue gun for the construction of polyurethane foam sealant. Background Art

[0002] Polyurethane sealant is a one-component, moisture-curing, multi-purpose polyurethane foaming filling elastic sealing material, which is used in two ways: gun type or tube type. The gun type requires a special polyurethane foaming gun, and the tube type is equipped with a disposable hose. The sealant is a special polyurethane product that fills components such as polyurethane prepolymer, foaming agent, and catalyst in a pressure-resistant aerosol can.

[0003] The existing sealant guns for polyurethane foam sealant mainly consist of a gun body and a nozzle. However, in some existing polyurethane film sealant glue guns, the gun body and the nozzle are integrated, which is not convenient for disassembling the nozzle. If the nozzle is not easy to disassemble, it will be very difficult during cleaning, maintenance or replacement. When the nozzle is blocked, it may exacerbate the wear of the equipment, even cause the glue gun to be damaged, thereby affecting the service life of the glue gun and the construction progress. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a glue gun for the construction of polyurethane foam sealant, which can solve the problem that in some existing polyurethane film sealant glue guns, the gun body and the nozzle are integrated, not convenient for disassembling the nozzle. If the nozzle is not easy to disassemble, it will be very difficult during cleaning, maintenance or replacement. When the nozzle is blocked, it may exacerbate the wear of the equipment, even cause the glue gun to be damaged, thereby affecting the service life of the glue gun and the construction progress.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A glue gun for the construction of polyurethane foam sealant, including a second gun barrel, a nozzle fixing assembly, the nozzle fixing assembly is arranged at the front end of the second gun barrel, the nozzle fixing assembly includes a sealant nozzle, and the sealant nozzle is threadedly connected to the second gun barrel;

[0006] Wherein, a first nut is fixedly connected to the surface of the sealant nozzle, a first gasket is sleeved on the surface of the sealant nozzle, and a second nut is threadedly sleeved on the surface of the second gun barrel.

[0007] Preferably, the nozzle fixing assembly further includes a sealant spray head, and the sealant spray head is threadedly connected to the front end of the sealant nozzle;

[0008] Wherein, a third nut is fixedly connected to the surface of the sealant spray head, a second gasket is sleeved on the surface of the sealant spray head, and three sealant nozzles are fixedly connected to the front end of the sealant spray head.

[0009] Preferably, a barrel connecting plate is fixedly connected to the surface of the second barrel. One end of the barrel connecting plate away from the second barrel is fixedly connected to the first barrel. A connecting pipe is fixedly connected to the surface of the second barrel. A handle is fixedly connected to the lower end of the first barrel.

[0010] Preferably, a pull rod is slidably connected inside the first barrel. A first limit block is fixedly connected to the surface of the pull rod. The first limit block is slidably connected to the inner wall of the first barrel.

[0011] Wherein, a spring is sleeved on the surface of the pull rod. Two ends of the spring are respectively fixedly connected to the first limit block and the first barrel. A knob is threadedly connected inside the first barrel.

[0012] Preferably, a trigger is rotatably connected to the lower end of the barrel connecting plate. A through groove is formed on the surface of the trigger. The pull rod is slidably connected to the through groove.

[0013] Wherein, a second limit block is fixedly connected to the surface of the pull rod. A piston is fixedly connected to the front end of the pull rod. The piston is slidably connected to the inner wall of the second barrel.

[0014] Preferably, a valve is installed inside the connecting pipe. The upper end of the connecting pipe is fixedly connected to a sealant tank fixing seat. A thread is formed on the annular inner wall of the sealant tank fixing seat.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] (1). For the glue gun for applying polyurethane foam sealant, by using a wrench to disassemble the first nut, the second nut and the third nut, it is convenient to disassemble the sealant spray pipe and the sealant spray head, facilitating the disassembly and cleaning of the sealant spray pipe and the sealant spray head, avoiding blockage of the sealant spray pipe and the sealant spray head, enabling convenient cleaning of internal residues, ensuring the normal use of the glue gun and extending its service life, facilitating the storage of the sealant spray pipe and the sealant spray head, improving the work quality and efficiency, and enhancing the practicality of the device.

[0017] (2). For the glue gun for applying polyurethane foam sealant, by rotating the knob to change the distance that the knob extends into the first barrel, it is convenient to change the compression length of the spring, so that when the trigger is pulled, the piston can semi-block the connecting pipe, thereby facilitating the change of the injection rate of the sealant, and thus achieving the purpose of adjusting the injection rate of the foaming glue gun, improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0019] Figure 1 It is a schematic structural diagram of a glue gun for applying polyurethane foam sealant of the present utility model;

[0020] Figure 2 This is a schematic diagram of the drawbar of the present utility model;

[0021] Figure 3 This is a schematic diagram of the sealant spray pipe of the present utility model;

[0022] Figure 4 This is a schematic diagram of the sealant nozzle of the present utility model.

[0023] Reference numerals: 1. Handle; 2. First gun barrel; 3. Gun barrel connecting plate; 4. Second gun barrel; 5. Connecting pipe; 6. Sealant tank fixing seat; 7. Valve; 8. Sealant spray pipe; 9. Sealant nozzle; 10. Knob; 11. Drawbar; 12. First limit block; 13. Spring; 14. Second limit block; 15. Trigger; 16. Through groove; 17. Piston; 18. First nut; 19. First gasket; 20. Second nut; 21. Third nut; 22. Second gasket; 23. Sealant nozzle. Detailed implementation manners

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0026] In the description of the present utility model, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If the first and second are described only for the purpose of distinguishing technical features, they cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0027] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0028] Please refer to Figures 1-4, the utility model provides a technical solution: a glue gun for the construction of polyurethane foam sealant, including a second gun barrel 4, a nozzle fixing assembly, the nozzle fixing assembly is arranged at the front end of the second gun barrel 4, the nozzle fixing assembly includes a sealant nozzle 8, the sealant nozzle 8 is threadedly connected to the second gun barrel 4, a first nut 18 is fixedly connected to the surface of the sealant nozzle 8, a first gasket 19 is sleeved on the surface of the sealant nozzle 8, and a second nut 20 is threadedly sleeved on the surface of the second gun barrel 4.

[0029] The nozzle fixing assembly further includes a sealant spray head 9, the sealant spray head 9 is threadedly connected to the front end of the sealant nozzle 8, a third nut 21 is fixedly connected to the surface of the sealant spray head 9, a second gasket 22 is sleeved on the surface of the sealant spray head 9, and three sealant nozzles 23 are fixedly connected to the front end of the sealant spray head 9.

[0030] A gun barrel connecting plate 3 is fixedly connected to the surface of the second gun barrel 4, a first gun barrel 2 is fixedly connected to one end of the gun barrel connecting plate 3 away from the second gun barrel 4, a connecting pipe 5 is fixedly connected to the surface of the second gun barrel 4, and a handle 1 is fixedly connected to the lower end of the first gun barrel 2.

[0031] A pull rod 11 is slidably connected inside the first gun barrel 2, a first limiting block 12 is fixedly connected to the surface of the pull rod 11, the first limiting block 12 is slidably connected to the inner wall of the first gun barrel 2, a spring 13 is sleeved on the surface of the pull rod 11, and both ends of the spring 13 are fixedly connected to the first limiting block 12 and the first gun barrel 2 respectively, and a knob 10 is threadedly connected inside the first gun barrel 2.

[0032] A trigger 15 is rotatably connected to the lower end of the gun barrel connecting plate 3, a through groove 16 is formed on the surface of the trigger 15, the pull rod 11 is slidably connected to the through groove 16, a second limiting block 14 is fixedly connected to the surface of the pull rod 11, and a piston 17 is fixedly connected to the front end of the pull rod 11, and the piston 17 is slidably connected to the inner wall of the second gun barrel 4.

[0033] A valve 7 is installed inside the connecting pipe 5, a sealant tank fixing seat 6 is fixedly connected to the upper end of the connecting pipe 5, and a thread is formed on the annular inner wall of the sealant tank fixing seat 6.

[0034] When using this device, first threadedly connect the sealant tank to the sealant tank fixing seat 6, install the sealant tank on this glue gun, open the valve 7, align the sealant spray head 9 of this glue gun with the position where construction needs to be carried out, hold the handle 1 and press the trigger 15 to make the trigger 15 rotate. During the rotation of the trigger 15, the second limiting block 14 is squeezed, causing the second limiting block 14 to move. The second limiting block 14 drives the pull rod 11 to move, and the pull rod 11 drives the piston 17 to slide on the inner wall of the second gun barrel 4, so that the connecting pipe 5 is communicated with the second gun barrel 4, and the sealant passes through the connecting pipe 5, the second gun barrel 4, the sealant nozzle 8, and the sealant spray head 9, and is sprayed out from the sealant nozzles 23.

[0035] The pull rod 11 drives the first limit block 12 to slide on the inner wall of the first gun barrel 2. The first limit block 12 compresses the spring 13. When the pull rod 11 contacts the knob 10, it stops moving. Rotate the knob 10 to adjust the distance that the knob 10 extends into the first gun barrel 2, changing the compressed length of the spring 13. Thus, when the trigger 15 is pulled, the piston 17 can semi-block the connecting pipe 5, so as to change the spraying rate of the sealant.

[0036] When the glue gun is used up, first use a wrench to rotate the second nut 20 to separate the second nut 20 from the first gasket 19. Then use a wrench to rotate the first nut 18 to disassemble the sealant spray pipe 8, separating the sealant spray pipe 8 from the second gun barrel 4. Then remove the first gasket 19 used to seal the sealant spray pipe 8 and the second gun barrel 4.

[0037] Then use a wrench to rotate the third nut 21 to separate the sealant nozzle 9 from the sealant spray pipe 8, and remove the second gasket 22 used to seal the sealant nozzle 9 and the sealant spray pipe 8, which is convenient for disassembling and cleaning the sealant spray pipe 8 and the sealant nozzle 9, avoiding blockage of the sealant spray pipe 8 and affecting the service life of the glue gun. At the same time, disassembling the sealant spray pipe 8 and the sealant nozzle 9 can facilitate their storage.

[0038] Furthermore, by using a wrench to disassemble the first nut 18, the second nut 20, and the third nut 21, it is convenient to disassemble the sealant spray pipe 8 and the sealant nozzle 9, facilitating the disassembly and cleaning of the sealant spray pipe 8 and the sealant nozzle 9, avoiding blockage of the sealant spray pipe 8 and the sealant nozzle 9, enabling convenient cleaning of internal residues, ensuring the normal use of the glue gun and extending its service life, facilitating the storage of the sealant spray pipe 8 and the sealant nozzle 9, improving work quality and efficiency, and enhancing the practicality of the device.

[0039] By rotating the knob 10 to change the distance that the knob 10 extends into the first gun barrel 2, it is convenient to change the compressed length of the spring 13. Thus, when the trigger 15 is pulled, the piston 17 can semi-block the connecting pipe 5, so as to change the spraying rate of the sealant, thereby achieving the purpose of adjusting the spraying rate of the foaming glue gun and enhancing the practicality of the device.

[0040] Working principle: When using this device, first threadedly connect the sealant tank with the sealant tank fixing seat 6, install the sealant tank on this glue gun, open the valve 7, align the sealant nozzle 9 of this glue gun with the position where construction is required, hold the handle 1 and press the trigger 15, causing the trigger 15 to rotate. During the rotation of the trigger 15, it squeezes the second limiting block 14, causing the second limiting block 14 to move. The second limiting block 14 drives the pull rod 11 to move, and the pull rod 11 drives the piston 17 to slide on the inner wall of the second barrel 4, making the connecting pipe 5 communicate with the second barrel 4, so that the sealant passes through the connecting pipe 5, the second barrel 4, the sealant spray pipe 8, and the sealant nozzle 9, and sprays out from the sealant nozzle 23.

[0041] The pull rod 11 drives the first limiting block 12 to slide on the inner wall of the first barrel 2, and the first limiting block 12 compresses the spring 13. When the pull rod 11 contacts the knob 10, it stops moving. Rotate the knob 10 to adjust the distance that the knob 10 extends into the first barrel 2, changing the compressed length of the spring 13, so as to achieve the purpose of making the piston 17 able to semi-block the connecting pipe 5 when the trigger 15 is pulled, in order to change the spraying rate of the sealant.

[0042] When the use of this glue gun is completed, first use a wrench to rotate the second nut 20 to separate the second nut 20 from the first gasket 19, then use a wrench to rotate the first nut 18 to disassemble the sealant spray pipe 8, separating the sealant spray pipe 8 from the second barrel 4, and then remove the first gasket 19 used to seal the sealant spray pipe 8 and the second barrel 4.

[0043] Then use a wrench to rotate the third nut 21 to separate the sealant nozzle 9 from the sealant spray pipe 8, and remove the second gasket 22 used to seal the sealant nozzle 9 and the sealant spray pipe 8, which is convenient for disassembling and cleaning the sealant spray pipe 8 and the sealant nozzle 9, avoiding blockage of the sealant spray pipe 8 and affecting the service life of this glue gun. At the same time, disassembling the sealant spray pipe 8 and the sealant nozzle 9 can facilitate their storage.

[0044] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. A glue gun for the construction of polyurethane foam sealant, characterized in that: It comprises a second gun barrel (4) and a nozzle fixing assembly, wherein the nozzle fixing assembly is arranged at the front end of the second gun barrel (4), and the nozzle fixing assembly comprises a caulking agent nozzle (8), and the caulking agent nozzle (8) is threadedly connected to the second gun barrel (4); The surface of the caulking agent spray pipe (8) is fixedly connected with a first nut (18), the surface of the caulking agent spray pipe (8) is sleeved with a first sealing gasket (19), and the surface of the second gun barrel (4) is threadedly sleeved with a second nut (20).

2. A glue gun for construction of polyurethane foam sealant according to claim 1, characterized in that: The nozzle fixing assembly further comprises a caulking agent nozzle (9), which is threadedly connected to the front end of the caulking agent nozzle (8); The surface of the caulking agent spray head (9) is fixedly connected to a third nut (21), the surface of the caulking agent spray head (9) is sleeved with a second sealing gasket (22), and the front end of the caulking agent spray head (9) is fixedly connected to three caulking agent nozzles (23).

3. The glue gun for construction of polyurethane foam sealant according to claim 1, characterized in that: A barrel connecting plate (3) is fixedly connected to the surface of the second barrel (4); an end of the barrel connecting plate (3) away from the second barrel (4) is fixedly connected to the first barrel (2); a connecting pipe (5) is fixedly connected to the surface of the second barrel (4); and a handle (1) is fixedly connected to the lower end of the first barrel (2).

4. A glue gun for construction of polyurethane foam sealant according to claim 3, characterized in that: The interior of the first gun barrel (2) is slidably connected to a pull rod (11), a surface of the pull rod (11) is fixedly connected to a first limit block (12), and the first limit block (12) is slidably connected to the inner wall of the first gun barrel (2); The surface of the pull rod (11) is sleeved with a spring (13), the two ends of the spring (13) are respectively fixedly connected to the first limit block (12) and the first gun barrel (2), and the interior of the first gun barrel (2) is threadedly connected with a knob (10).

5. The glue gun for construction of polyurethane foam sealant according to claim 3, characterized in that: The lower end of the gun barrel connecting plate (3) is rotatably connected to a trigger (15), a through groove (16) is provided on the surface of the trigger (15), and the pull rod (11) is slidably connected to the through groove (16); The surface of the pull rod (11) is fixedly connected to a second limit block (14), the front end of the pull rod (11) is fixedly connected to a piston (17), and the piston (17) is slidably connected to the inner wall of the second gun barrel (4).

6. A glue gun for construction of polyurethane foam sealant according to claim 3, characterized in that: A valve (7) is installed inside the connecting pipe (5), and the upper end of the connecting pipe (5) is fixedly connected to a caulking agent tank fixing seat (6), and a thread is provided on the annular inner wall of the caulking agent tank fixing seat (6).

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