Glue gun

Abstract

The utility model relates to a glue gun, which belongs to the technical field of glue guns, and comprises a glue pushing gun body, a connecting piece and a glue storage barrel, a connecting end cover is fixed at the front end of the glue pushing gun body, the end face of the connecting end cover is provided with a through hole, and the inner peripheral side wall of the connecting end cover is provided with threads; the glue pushing end of the glue pushing gun body movably penetrates through the through hole; the connecting piece comprises a first connecting cylinder and a second connecting cylinder which are integrally connected and coaxially arranged, threads are arranged on the outer peripheral side wall of the first connecting cylinder, and threads are arranged on the inner peripheral side wall of the second connecting cylinder; the connecting end cover is in threaded connection with the first connecting cylinder; a piston is slidably connected into the glue storage barrel, and threads are arranged on the peripheral side wall close to one end of the piston; and the second connecting cylinder is in threaded connection with the glue storage cylinder. According to the glue gun, the thread on the inner peripheral side wall of the second connecting cylinder is in threaded connection with the thread on the outer peripheral side wall of the glue storage cylinder, so that after glue or a glue bag in the glue storage cylinder is used up, new glue can be quickly supplemented or the glue bag can be quickly replaced, and the use convenience and adaptability of the glue gun are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glue guns, in particular to a glue gun. Background Art

[0002] With the continuous improvement of living standards and aesthetic awareness, in interior decoration, more and more people will use adhesives, caulking agents, bonding glues and other glue products to fill the gaps in interior decoration and beautify the interior space.

[0003] At present, glue products are mainly glued with glue guns. Traditional glue guns are mainly composed of a tank body, a sealing cover plate, a pressing pump and a discharge pipe. The tank body is filled with glue and has an opening on its top surface; the sealing cover plate is sealed and fixed at the opening of the tank body and has a through hole in the middle; the pressing pump is inserted in the through hole and the discharge port on its top passes through the through hole; the discharge pipe is fixedly connected to the discharge port on the top of the pressing pump; the glue gun nozzle is detachably connected to the discharge pipe; in actual use, reciprocating pressure on the glue gun nozzle will link the discharge pipe to reciprocate the pressing pump, at which time, the pressing pump will draw out the glue contained in the tank body and spray it out through the glue gun nozzle to complete the glue application. However, the above-mentioned glue gun requires the operator to repeatedly press the pressing pump to discharge glue normally, resulting in excessive labor intensity, which is not conducive to the operator's long-term glue application; in addition, the sealing cover plate is sealed at the opening of the tank body, which makes it difficult to replenish the glue inside the tank body, which is not conducive to the continued use of the glue gun.

[0004] Therefore, how to design a glue gun with a simple structure, easy operation and easy glue replenishment is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0005] The utility model provides a glue gun, which solves the technical problems of the existing glue guns that the structure is complicated, the glue application is cumbersome and the glue liquid is not easy to be replenished.

[0006] The utility model solves the above technical problems with the following technical solutions: a glue gun, comprising: a glue gun body, a connecting piece and a glue storage cylinder containing glue liquid or a glue liquid bag,

[0007] The glue pushing end of the glue pushing gun body moves forward along the front and rear end directions of the glue pushing gun body, and a connecting end cover is fixed to the front end of the glue pushing gun body, and the connecting end cover is provided with a through hole near the end face of the glue pushing gun body and its inner circumferential side wall is provided with a thread; the glue pushing end of the glue pushing gun body can move through the through hole; the connecting piece includes a first connecting tube and a second connecting tube that are integrally connected and coaxially arranged, the outer circumferential side wall of the first connecting tube is provided with a thread, and the inner circumferential side wall of the second connecting tube is provided with a thread; the thread of the inner circumferential side wall of the connecting end cover is threadedly connected to the thread of the outer circumferential side wall of the first connecting tube; the inside of the glue storage cylinder is slidably connected to a piston and the outer circumferential side wall near one end thereof is provided with a thread, and a guide plate is fixed at the opening of the other end, and a glue outlet hole is provided in the middle of the guide plate; the thread of the inner circumferential side wall of the second connecting cylinder is threadedly connected to the thread of the outer circumferential side wall of the glue storage cylinder; the glue pushing end of the glue pushing gun body that moves through the through hole passes through the first connecting tube and the second connecting tube in turn, extends into the glue storage cylinder and is fixed on the piston.

[0008] The beneficial effects of the utility model are:

[0009] 1. The threads on the inner peripheral side wall of the second connecting tube are threadedly connected to the threads on the outer peripheral side wall of the glue storage tube. When the glue liquid or glue liquid bag in the glue storage tube is used up, new glue liquid can be quickly added or the glue liquid bag can be replaced, thereby improving the convenience and adaptability of the glue gun;

[0010] 2. The threads on the inner peripheral side wall of the connecting end cover are threadedly connected to the threads on the outer peripheral side wall of the first connecting tube, so as to facilitate cleaning of glue residues adhering to the connecting end cover, the first connecting tube and the second connecting tube.

[0011] On the basis of the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, the glue pushing gun body includes a gun handle, a first gun barrel, a second gun barrel, a push rod, a push block, a return spring, a handle and a locking plate. The first gun barrel and the second gun barrel are arranged opposite to each other and are fixed to the upper end of the gun handle at intervals along the front and rear end directions of the gun handle. The first gun barrel is away from the inner peripheral side wall of the second gun barrel and a limiting ring is fixed; the push rod is the glue pushing end of the glue pushing gun body, and the push rod slides in the first gun barrel and the second gun barrel; the push block is provided with sliding holes running through both ends and is slidably sleeved on the push block corresponding to the first gun barrel and the second gun barrel. On the rod, the front end and rear end of the push block can respectively conflict with the first gun barrel and the second gun barrel; the return spring is sleeved on the outer peripheral side of the push rod and one end thereof contacts the push block, and the other end thereof contacts the limit ring; the middle part of the handle is hinged on the gun handle perpendicular to the sliding direction of the push rod and the top end thereof contacts the push block; the top end of the locking plate is hinged to the rear end of the second gun barrel away from the first gun barrel and a locking hole is provided on it, and the axis of the locking hole is arranged at an angle to the sliding direction of the push rod; the rear end of the push rod is inserted into the locking hole.

[0013] The above-mentioned further beneficial effect is: by arranging the axis of the locking hole at an angle to the sliding direction of the push rod, when the handle is rotated to move the push block forward, the push rod can be driven forward; and when the push block is pushed by the elasticity of the return spring, it cannot drive the push rod to move backward.

[0014] Furthermore, the glue gun body also includes a positioning spring, one end of which is fixed to the rear end of the second barrel away from the first barrel and the other end is fixed to the locking plate to lock or release the push rod by changing the position of the locking hole as the positioning spring expands and contracts.

[0015] A further beneficial effect of the above method is that the position of the locking hole of the locking plate is changed to lock or release the push rod, and the push rod can be pushed to move backward when replenishing the glue or replacing the glue bag.

[0016] Furthermore, the glue pushing gun body also includes a connecting strip plate, which is located above the first gun barrel, the pushing block and the second gun barrel and is fixed in parallel to the top end of the first gun barrel and the top end of the second gun barrel.

[0017] Furthermore, the rear end of the push rod passing through the locking hole is bent.

[0018] Furthermore, it also includes a glue nozzle, which includes an integrally connected glue sealing cover and a conical glue outlet tube, a connecting glue cylinder is coaxially fixed to the outer side of the glue outlet hole, and the outer peripheral side wall of the connecting glue cylinder is provided with a thread; the inner peripheral side wall of the glue sealing cover is provided with a thread and the thread is connected to the thread of the outer peripheral side wall of the connecting glue cylinder, and the end face of the glue sealing cover away from the connecting glue cylinder is provided with a glue through hole; the large-area end of the glue outlet tube is fixed and connected to the glue through hole.

[0019] Furthermore, the guide plate is a hemispherical structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a glue gun of the utility model;

[0021] Figure 2 It is a schematic diagram of a semi-planed three-dimensional structure of a glue gun of the utility model;

[0022] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point A.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Glue gun body, 11. Gun handle, 12. First gun barrel, 13. Second gun barrel, 14. Push rod, 15. Push block, 16. Return spring, 17. Handle, 18. Locking plate, 181. Locking hole, 19. Adjusting spring, 110. Connecting plate, 2. Connecting piece, 21. First connecting cylinder, 22. Second connecting cylinder, 3. Glue storage cylinder, 4. Connecting end cover, 5. Piston, 6. Guide plate, 7. Limiting ring, 8. Glue nozzle, 81. Glue sealing cover, 82. Glue outlet pipe, 9. Connecting glue cylinder. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] like Figure 1 As shown, a glue gun comprises: a glue gun body 1, a connecting piece 2 and a glue storage cylinder 3,

[0027] The glue pushing end of the glue pushing gun body 1 moves forward along the front and rear end directions of the glue pushing gun body 1, and a connecting end cover 4 is fixed to the front end of the glue pushing gun body 1, and a through hole is provided on the end face of the connecting end cover 4 close to the glue pushing gun body 1, and a thread is provided on the inner peripheral side wall; the glue pushing end of the glue pushing gun body 1 moves through the through hole; the connecting member 2 includes a first connecting tube 21 and a second connecting tube 22 that are integrally connected and coaxially arranged, the outer peripheral side wall of the first connecting tube 21 is provided with a thread, and the inner peripheral side wall of the second connecting tube 22 is provided with a thread; the inner peripheral side wall of the connecting end cover 4 is provided with a thread; The thread is threadedly connected to the thread on the outer peripheral side wall of the first connecting cylinder 21; the piston 5 is slidably connected to the inside of the rubber storage cylinder 3 and the outer peripheral side wall near one end thereof is provided with a thread, and a guide plate 6 is fixed at the opening of the other end thereof, and a glue outlet hole is provided in the middle of the guide plate 6; the thread on the inner peripheral side wall of the second connecting cylinder 22 is threadedly connected to the thread on the outer peripheral side wall of the rubber storage cylinder 3; the glue pushing end of the glue pushing gun body 1 that moves through the perforation passes through the first connecting cylinder 21 and the second connecting cylinder 22 in turn, extends into the rubber storage cylinder 3 and is fixed on the piston 5.

[0028] In some specific embodiments, the glue gun body 1 may include a gun handle 11, a first gun barrel 12, a second gun barrel 13, a push rod 14, a push block 15, a return spring 16, a handle 17 and a locking plate 18. The first gun barrel 12 and the second gun barrel 13 are arranged relatively to each other and are fixed at the upper end of the gun handle 11 at intervals along the front and rear end directions of the gun handle 11. The first gun barrel 12 is fixed with a limiting ring 7 on the inner peripheral side wall away from the second gun barrel 13; the push rod 14 is the glue pushing end of the glue gun body 1, and the push rod 14 slides in the first gun barrel 12 and the second gun barrel 13; the push block 15 is provided with a sliding hole running through both ends and corresponding to the first gun barrel 12 and the second gun barrel 13. The push rod 14 is slidably sleeved thereon, and the front and rear ends of the push block 15 can respectively contact the first barrel 12 and the second barrel 13; the return spring 16 is sleeved on the outer peripheral side of the push rod 14, and one end thereof contacts the push block 15, and the other end thereof contacts the limit ring 7; the middle part of the handle 17 is hinged on the gun handle 11 in a direction perpendicular to the sliding direction of the push rod 14, and the top end thereof contacts the push block 15; the top end of the locking plate 18 is hinged on the rear end of the second barrel 13 away from the first barrel 12, and a locking hole 181 is provided thereon, and the axis of the locking hole 181 is arranged at an angle to the sliding direction of the push rod 14; the rear end of the push rod 14 is penetrated into the locking hole 181.

[0029] In some specific embodiments, the glue gun body 1 may further include a positioning spring 19, one end of the positioning spring 19 is fixed to the rear end of the second barrel 13 away from the first barrel 12 and the other end is fixed to the locking plate 18 to lock or release the push rod 14 by changing the position of the locking hole 181 as the positioning spring 19 expands and contracts.

[0030] In some specific embodiments, the glue gun body 1 may further include a connecting strip 110 , which is located above the first barrel 12 , the push block 15 and the second barrel 13 and is fixed parallel to the top of the first barrel 12 and the top of the second barrel 13 .

[0031] In some specific embodiments, the rear end of the push rod 14 passing through the locking hole 181 is bent.

[0032] In some specific embodiments, a glue nozzle 8 may also be included, which includes an integrally connected glue sealing cover 81 and a conical glue outlet pipe 82, a connecting glue cylinder 9 is coaxially fixed to the outer side of the glue outlet hole, and the outer peripheral side wall of the connecting glue cylinder 9 is provided with a thread; the inner peripheral side wall of the glue sealing cover 81 is provided with a thread and the thread is connected to the thread of the outer peripheral side wall of the connecting glue cylinder 9, and the end face of the glue sealing cover 81 away from the connecting glue cylinder 9 is provided with a glue through hole; the large-area end of the glue outlet pipe 82 is fixed and connected to the glue through hole.

[0033] Specifically, the guide plate 6 may be a hemispherical structure.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A glue gun, characterized in that: include: A glue pushing gun body (1), wherein the glue pushing end of the glue pushing gun body (1) moves forward along the front and rear end directions of the glue pushing gun body (1), a connecting end cover (4) is fixed to the front end of the glue pushing gun body (1), and a through hole is provided on the end surface of the connecting end cover (4) close to the glue pushing gun body (1) and a thread is provided on the inner peripheral side wall; the glue pushing end of the glue pushing gun body (1) moves through the through hole; A connecting member (2), the connecting member (2) comprising a first connecting tube (21) and a second connecting tube (22) which are integrally connected and coaxially arranged, the outer peripheral side wall of the first connecting tube (21) being provided with a thread, and the inner peripheral side wall of the second connecting tube (22) being provided with a thread; the thread of the inner peripheral side wall of the connecting end cover (4) being threadedly connected to the thread of the outer peripheral side wall of the first connecting tube (21); A rubber storage cylinder (3), wherein the interior of the rubber storage cylinder (3) is slidably connected to a piston (5) and the outer peripheral side wall near one end thereof is provided with a thread, and a guide plate (6) is fixed at the opening of the other end thereof, and a rubber outlet hole is provided in the middle of the guide plate (6); the thread of the inner peripheral side wall of the second connecting cylinder (22) is threadedly connected to the thread of the outer peripheral side wall of the rubber storage cylinder (3); the rubber pushing end of the rubber pushing gun body (1) that movably passes through the perforation passes through the first connecting cylinder (21) and the second connecting cylinder (22) in turn, extends into the rubber storage cylinder (3) and is fixed on the piston (5).

2. A glue gun according to claim 1, characterized in that: The glue pushing gun body (1) comprises a gun handle (11), a first gun barrel (12), a second gun barrel (13), a push rod (14), a push block (15), a return spring (16), a handle (17) and a locking plate (18); the first gun barrel (12) and the second gun barrel (13) are arranged opposite to each other and are fixed at an interval at the upper end of the gun handle (11) along the front and rear end directions of the gun handle (11); a limiting ring (7) is fixed on the inner peripheral side wall of the first gun barrel (12) away from the second gun barrel (13); the push rod (14) is the glue pushing end of the glue pushing gun body (1), and the push rod (14) slides in the first gun barrel (12) and the second gun barrel (13); the push block (15) is provided with sliding holes penetrating the two ends and is slidably sleeved between the first gun barrel (12) and the second gun barrel (13) correspondingly. On the push rod (14), the front end and the rear end of the push block (15) can respectively contact the first gun barrel (12) and the second gun barrel (13); the return spring (16) is sleeved on the outer peripheral side of the push rod (14) and one end of it contacts the push block (15), and the other end of it contacts the limit ring (7); the middle part of the handle (17) is hinged on the gun handle (11) in a direction perpendicular to the sliding direction of the push rod (14) and the top end of it contacts the push block (15); the top end of the locking plate (18) is hinged on the rear end of the second gun barrel (13) away from the first gun barrel (12) and a locking hole (181) is provided on it, and the axis of the locking hole (181) is arranged at an angle with the sliding direction of the push rod (14); the rear end of the push rod (14) is inserted into the locking hole (181).

3. A glue gun according to claim 2, characterized in that: The glue gun body (1) also includes a positioning spring (19), one end of which is fixed to the rear end of the second gun barrel (13) away from the first gun barrel (12) and the other end of which is fixed to the locking plate (18) so as to lock or release the push rod (14) by changing the position of the locking hole (181) as the positioning spring (19) expands and contracts.

4. A glue gun according to claim 2, characterized in that: The glue pushing gun body (1) further comprises a connecting plate (110), wherein the connecting plate (110) is located above the first gun barrel (12), the pushing block (15) and the second gun barrel (13) and is fixed in parallel to the top end of the first gun barrel (12) and the top end of the second gun barrel (13).

5. A glue gun according to claim 2, characterized in that: The rear end of the push rod (14) passing through the locking hole (181) is bent.

6. A glue gun according to claim 1, characterized in that: It also includes a glue nozzle (8), the glue nozzle (8) includes an integrally connected glue sealing cover (81) and a conical glue outlet pipe (82), a connecting glue cylinder (9) is coaxially fixed to the outer side of the glue outlet hole, and the outer peripheral side wall of the connecting glue cylinder (9) is provided with a thread; the inner peripheral side wall of the glue sealing cover (81) is provided with a thread and the thread is connected to the thread of the outer peripheral side wall of the connecting glue cylinder (9), and the end face of the glue sealing cover (81) away from the connecting glue cylinder (9) is provided with a glue through hole; the large-area end of the glue outlet pipe (82) is fixed and connected to the glue through hole.

7. A glue gun according to claim 1, characterized in that: The guide plate (6) is a hemispherical structure.

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