Labor-saving glue gun

Abstract

The utility model relates to a labor-saving glue gun, which belongs to the technical field of glue guns, and comprises a compressed gas tank, a glue solution tank, a limiting cylinder, an elastic piece and a discharge pipe, the glue solution tank is detachably connected to the compressed gas tank, an air inlet hole is formed in the glue solution tank and communicates with the air outlet hole, a discharging hole is formed in the glue solution tank, and a piston is slidably connected into the discharging hole; the limiting cylinder is inserted into the discharging hole, and an annular limiting part is fixed on the inner wall of the limiting cylinder; the elastic piece is arranged in the limiting cylinder and abuts against the annular limiting part. A material passing hole is formed in the side wall of the discharging pipe, and the discharging pipe is inserted into the limiting cylinder and makes contact with the elastic piece. According to the utility model, the compressed air tank is detachably connected to the glue solution tank, and the air inlet of the glue solution tank is communicated with the air outlet of the compressed air tank, so that when the lower end of the discharge pipe is pressed to be inserted into the glue solution tank, the material through hole is respectively communicated with the glue solution tank and the outside, and at the moment, compressed air of the compressed air tank quickly pushes the piston upwards; therefore, the glue solution in the glue solution tank is sprayed out from the glue gun nozzle through the material passing barrel.

Description

Technical Field

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

[0002] With the continuous improvement of living standards and aesthetic awareness, more and more people will use adhesives, caulking agents, bonding glue and other glue products in interior decoration 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, a press pump and a discharge pipe. The tank body is filled with glue and has an opening on its top surface; the sealing cover is sealed and fixed at the opening of the tank body and has a perforation in the middle; the press pump is inserted into the perforation and the discharge port on its top passes through the perforation; the discharge pipe is fixedly connected to the discharge port on the top of the press pump; the glue gun nozzle is detachably connected to the discharge pipe; in actual use, reciprocating pressure on the glue gun nozzle will cause the discharge pipe to reciprocate and press the press pump. At this time, the press pump will extract the glue contained in the tank body and spray it out through the glue gun nozzle to complete the gluing work. However, the above glue gun requires the operator to repeatedly press the press pump to discharge glue normally, resulting in excessive labor intensity and not conducive to the operator's long-term glue application.

[0004] Therefore, how to design a labor-saving glue gun is a problem that those skilled in the art need to solve urgently. Utility Model Content

[0005] The utility model provides a labor-saving glue gun, which solves the technical problem that the existing glue gun has excessive labor intensity in discharging glue.

[0006] The technical solution of the utility model for solving the above technical problems is as follows: a labor-saving glue gun, comprising: a compressed gas tank, a glue liquid tank, a limiting cylinder, an elastic member, a discharge pipe and a glue gun nozzle, the interior of the compressed gas tank is filled with compressed gas and an air outlet hole is provided at the top thereof; the interior of the glue liquid tank is filled with glue liquid and its bottom end is detachably connected to the top of the compressed gas tank, the bottom of the glue liquid tank is provided with an air inlet hole and is connected to the air outlet hole, and the top of the glue liquid tank is provided with a discharge hole; a piston is slidably connected in the glue liquid tank to drive the glue liquid to discharge from the nozzle hole extrusion; the limiting cylinder is inserted into the discharge hole and an annular limiting portion is fixed at the bottom end thereof; the elastic member is placed in the limiting cylinder and its bottom end is in conflict with the annular limiting portion; the bottom end of the discharge pipe is a closed end and a through hole is provided on its side wall, the discharge pipe is inserted into the limiting cylinder and its bottom end is in contact with the top of the elastic member, and the through hole can be extended into the glue tank and communicated with the interior of the glue tank as the elastic member is elastically compressed; the feed port at the bottom end of the glue gun nozzle is fixed and communicated with the discharge port at the top end of the discharge pipe.

[0007] The beneficial effects of the present invention are as follows: it changes the traditional glue discharge method of repeatedly pressing the glue gun, firstly, the compressed gas tank is detachably connected to the bottom end of the glue tank, because the air inlet hole at the bottom end of the glue tank is connected to the air outlet hole at the top end of the compressed gas tank, when the lower end of the discharge pipe is pressed and inserted into the glue tank, the through hole on the side wall of the discharge pipe connects the glue tank and the outside world. At this time, the compressed air in the compressed gas tank will quickly push the piston upward, thereby continuously spraying the glue in the glue tank through the through barrel and from the glue gun nozzle, reducing the labor intensity of the operator, improving the continuity and coherence of the glue discharge from the glue gun, and ensuring the beautiful seam effect.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the compressed gas tank includes: a compressed gas tank body, a compressed gas end cover and a vent pipe, the air outlet is provided at the top of the compressed gas tank body; the compressed gas end cover is snapped on the top of the compressed gas tank body and a through-hole A is provided at its top; the glue tank is detachably connected to the top of the compressed gas end cover; the lower end of the vent pipe is inserted into the air outlet and the upper end thereof is inserted into the through-hole A, and the air inlet is communicated with the vent pipe.

[0010] The top end of the bottle is provided with a first connecting hole, and the bottom end of the bottle is provided with a second connecting hole, and the bottom end of the bottle is provided with a first connecting hole, and the bottom end of the bottle is provided with a second connecting hole.

[0011] A further beneficial effect of the above-mentioned method is that by using the hollow stud and the threaded sleeve to connect, a new compressed gas tank or glue tank can be quickly replaced after the compressed gas tank is exhausted or the glue tank is exhausted, thereby avoiding waste of compressed air or glue.

[0012] Furthermore, the bottom end of the hollow stud is a closed end and a second connecting hole is provided in the middle of the closed end. A sleeve is fixed to the closed end of the hollow stud corresponding to the second connecting hole, and the sleeve is inserted into the through hole A; the upper end of the ventilation pipe is inserted into the sleeve.

[0013] Furthermore, the annular limiting portion includes: a first annular limiting portion and a second annular limiting portion, the first annular limiting portion is fixed at the inner bottom end of the limiting cylinder; the elastic member is inserted into the first annular limiting portion; the second annular limiting portion is fixed at the inner bottom end of the first annular limiting portion; the bottom end of the elastic member is in conflict with the second annular limiting portion.

[0014] The above method has the further beneficial effect of: inserting the elastic member into the first annular limiting portion and having its bottom end abutting against the second annular limiting portion can facilitate the installation of the elastic member, and can also ensure that the elastic member does not move later, thereby increasing the service life of the glue gun.

[0015] Furthermore, the glue tank also includes a sealing ring, and an annular placement groove is provided at the top end of the limiting cylinder, and the sealing ring is placed in the annular placement groove; the discharge pipe passes through the sealing ring.

[0016] The further beneficial effect of adopting the above method is: by designing an annular placement groove at the inner top of the limiting cylinder and placing the sealing ring in the annular placement groove, since the lower end of the discharge pipe moves through the sealing ring, it can ensure that the glue inside the glue tank does not flow out from between the limiting cylinder and the discharge pipe, thereby improving the safety of using the glue gun.

[0017] Furthermore, it also includes a tapered limiting column, the large end of which is fixed to the small end of the discharge pipe and penetrates into the elastic member.

[0018] Further, the glue gun nozzle includes: a discharge end cover, a discharge cone tube, a connecting sleeve and a pressing frame plate, the open end of the discharge end cover is arranged downwardly and a passing hole is provided at its top, and a connecting cylinder is fixed at the inner top end of the discharge end cover corresponding to the passing hole; the feed port of the glue gun nozzle is the inner hole of the connecting cylinder and the upper end of the discharge tube is inserted in the connecting cylinder; the large diameter end of the discharge cone tube is fixed and connected to the passing hole at the top end of the discharge end cover; the connecting sleeve is sleeved on the outer peripheral side of the discharge end cover and its bottom end contacts the connecting end cover, and a vertical plate is vertically fixed on one side of the top surface of the connecting sleeve; the pressing frame plate is sleeved on the outer peripheral side of the discharge cone tube and one end of it is hinged to the top of the vertical plate, and a pressing block is fixed on the pressing frame plate corresponding to the top of the discharge end cover, and the pressing block can press the discharge end cover as the pressing frame plate rotates.

[0019] The further beneficial effect of adopting the above method is: utilizing the lever principle, the pressing frame plate is sleeved on the outer peripheral side of the discharge cone tube and one end of it is hinged on the vertical plate. Since a pressing block is fixed above the pressing frame plate corresponding to the discharge end cover, when the other end of the pressing frame plate is pressed, the pressing force of the glue gun can be reduced, the labor intensity of the operator can be reduced, and the convenience and safety of using the glue gun can be improved.

[0020] Furthermore, the bottom surface of the pressing block in contact with the discharge end cover is an outwardly convex arc surface.

[0021] Furthermore, the plate surface of the vertical plate close to the top end thereof is bent toward the center direction of the connecting sleeve.

[0022] Furthermore, the elastic member is a spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a glue gun nozzle in a labor-saving glue gun of the present invention;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of a compressed gas tank, a glue liquid tank and a discharge pipe in a labor-saving glue gun of the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of a glue gun nozzle in a labor-saving glue gun of the utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of a compressed gas tank, a glue liquid tank and a discharge pipe in a labor-saving glue gun of the utility model;

[0027] Figure 5 for Figure 4 A partial enlarged schematic diagram;

[0028] Figure 6 for Figure 4 A partial enlarged schematic diagram of point B.

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1. Compressed gas tank, 11. Compressed gas tank body, 12. Compressed gas end cover, 13. Vent pipe, 14. Connecting sleeve, 2. Glue tank, 21. Glue tank body, 22. Connecting end cover, 23. Connecting end cover, 24. Hollow stud, 25. Limiting ring, 26. Sleeve, 27. Sealing ring, 3. Limiting cylinder, 4. Elastic part, 5. Discharge pipe, 51. Through hole, 52. Limiting column, 6. Glue gun nozzle, 61. Discharge end cover, 62. Discharge cone, 63. Connecting sleeve, 64. Press frame plate, 65. Vertical plate, 66. Pressing block, 67. Connecting cylinder, 7. Annular limiting part, 71. First annular limiting part, 72. Second annular limiting part, 8. Piston. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figure 1 and Figure 2As shown, a labor-saving glue gun comprises: a compressed gas tank 1, a glue liquid tank 2, a limiting cylinder 3, an elastic member 4, a discharge pipe 5 and a glue gun nozzle 6. The top of the compressed gas tank 1 is provided with an air outlet; the bottom end of the glue liquid tank 2 is detachably connected to the top of the compressed gas tank 1, the bottom of the glue liquid tank 2 is provided with an air inlet and is connected to the air outlet, and the top of the glue liquid tank 2 is provided with a discharge hole; a piston 8 is slidably connected in the glue liquid tank 2 to drive the glue liquid to be extruded from the discharge hole; the limiting cylinder 3 is inserted in the discharge hole and An annular limiting portion 7 is fixed at its inner bottom end; the elastic member 4 is placed in the limiting cylinder 3 and its bottom end is in conflict with the annular limiting portion 7; the bottom end of the discharge pipe 5 is a closed end and its side wall is provided with a through hole 51, the discharge pipe 5 is inserted into the limiting cylinder 3 and its bottom end is in contact with the top of the elastic member 4, and the through hole 51 can extend into the glue liquid tank 2 and communicate with the interior of the glue liquid tank 2 as the elastic member 4 is elastically compressed; the feed port at the bottom end of the glue gun nozzle 6 is fixed and connected to the discharge port at the top end of the discharge pipe 5.

[0033] In some specific embodiments, the compressed gas tank 1 may include: a compressed gas tank body 11, a compressed gas end cover 12 and a vent pipe 13, the air outlet is provided at the top of the compressed gas tank body 11; the compressed gas end cover 12 is snapped onto the top of the compressed gas tank body 11 and a through-hole A is provided at its top; the glue tank 2 is detachably connected to the top of the compressed gas end cover 12; the lower end of the vent pipe 13 is plugged into the air outlet and the upper end thereof is inserted into the through-hole A, and the air inlet is communicated with the vent pipe 13.

[0034] In some specific embodiments, the glue tank 2 may include: a glue tank body 21, a connecting end cover 22 and a glue end cover 23, the outer wall of the bottom end and the outer wall of the top end of the glue tank body 21 are both provided with threads; the air inlet is provided at the bottom end of the glue tank body 21; the piston 8 is slidably connected in the glue tank body 21; the discharge hole is provided at the top end of the glue tank body 21; the opening end of the connecting end cover 22 is arranged upward and its inner wall is provided with threads and is threadedly connected to the threads at the bottom end of the compressed gas tank body 11, and the bottom end of the connecting end cover 22 is provided with a first connecting end. A hollow stud 24 is fixed to the bottom end of the connecting end cover 22 corresponding to the first connecting hole; a connecting sleeve 14 communicating with the through-hole A is fixed to the top end of the compressed gas end cover 12, and the inner wall of the connecting sleeve 14 is provided with a thread and is threadedly connected to the hollow stud 24; the inner wall of the glue end cover 23 is provided with a thread and is threadedly connected to the thread at the top end of the glue tank body 21, and the top end of the glue end cover 23 is provided with a through-hole B and a limiting ring 25 is fixed to the inner top end of the through-hole B; the limiting cylinder 3 is clamped on the limiting ring 25; the discharge pipe 5 passes through the through-hole B.

[0035] In some specific embodiments, the bottom end of the hollow stud 24 can be a closed end and a second connecting hole is provided in the middle of the closed end. A sleeve 26 is fixed at the closed end of the hollow stud 24 corresponding to the second connecting hole, and the sleeve 26 is inserted into the through-hole A; the upper end of the vent pipe 13 is inserted into the sleeve 26.

[0036] In some specific embodiments, the annular limiting portion 7 may include: a first annular limiting portion 71 and a second annular limiting portion 72, the first annular limiting portion 71 is fixed at the inner bottom end of the limiting cylinder 3; the elastic member 4 is inserted into the first annular limiting portion 71; the second annular limiting portion 72 is fixed at the inner bottom end of the first annular limiting portion 71; the bottom end of the elastic member 4 is in conflict with the second annular limiting portion 72.

[0037] In some specific embodiments, the glue tank 2 may further include a sealing ring 27 . An annular placement groove is provided at the top of the limiting cylinder 3 , and the sealing ring 27 is placed in the annular placement groove; the discharge pipe 5 passes through the sealing ring 27 .

[0038] In some specific embodiments, a tapered limiting column 52 may also be included, wherein the large end of the limiting column 52 is fixed to the small end of the discharge pipe 5 and penetrates into the elastic member 4 .

[0039] In some specific embodiments, the glue gun nozzle 6 may include: a discharge end cover 61, a discharge cone 62, a connecting sleeve 63 and a pressing frame plate 64. The open end of the discharge end cover 61 is arranged downward and a feeding hole is provided at its top. A connecting tube 67 is fixed at the inner top end of the discharge end cover 61 corresponding to the feeding hole; the feed port of the glue gun nozzle 6 is the inner hole of the connecting tube 67 and the upper end of the discharge tube 5 is inserted into the connecting tube 67; the large diameter end of the discharge cone 62 is fixed and connected to the discharge end At the feeding hole at the top of the cover 61; the connecting sleeve 63 is sleeved on the outer peripheral side of the discharge end cover 61 and its bottom end is in contact with the glue end cover 23, and a vertical plate 65 is vertically fixed on one side of the top surface of the connecting sleeve 63; the pressing frame plate 64 is sleeved on the outer peripheral side of the discharge cone 62 and one end of it is hinged to the top of the vertical plate 65, and a pressing block 66 is fixed above the pressing frame plate 64 corresponding to the discharge end cover 61, and the pressing block 66 can press the discharge end cover 61 as the pressing frame plate 64 rotates.

[0040] In some specific embodiments, the bottom surface of the pressing block 66 in contact with the discharge end cover 61 may be an outwardly convex arc surface.

[0041] In some specific embodiments, the plate surface of the vertical plate 65 near the top thereof is bent toward the center of the connecting sleeve 63 .

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A labor-saving glue gun, characterized in that: include: A compressed gas tank (1), wherein the top end of the compressed gas tank (1) is provided with an air outlet; A glue liquid tank (2), wherein the bottom end of the glue liquid tank (2) is detachably connected to the top end of the compressed gas tank (1), an air inlet is provided at the bottom of the glue liquid tank (2) and is communicated with the air outlet, and a discharge hole is provided at the top end of the glue liquid tank (2); a piston (8) is slidably connected in the glue liquid tank (2) to drive the glue liquid to be extruded from the discharge hole; A limiting cylinder (3), the limiting cylinder (3) is inserted into the discharge hole and an annular limiting portion (7) is fixed to the inner bottom end thereof; An elastic member (4), wherein the elastic member (4) is placed in the limiting cylinder (3) and the bottom end thereof contacts the annular limiting portion (7); A discharge pipe (5), the bottom end of the discharge pipe (5) is a closed end and a through hole (51) is provided on its side wall, the discharge pipe (5) is inserted into the limiting cylinder (3) and the bottom end thereof contacts the top of the elastic member (4), and the through hole (51) can extend into the glue tank (2) and communicate with the interior of the glue tank (2) as the elastic member (4) is elastically compressed; and a glue gun nozzle (6), wherein the feed port at the bottom end of the glue gun nozzle (6) is fixed and connected to the discharge port at the top end of the discharge pipe (5).

2. A labor-saving glue gun according to claim 1, characterized in that: The compressed gas tank (1) comprises: A compressed gas tank body (11), wherein the gas outlet is provided at the top end of the compressed gas tank body (11); A compressed gas end cover (12), the compressed gas end cover (12) is buckled on the top end of the compressed gas tank body (11) and is provided with a through hole A at the top end; the glue tank (2) is detachably connected to the top end of the compressed gas end cover (12); and a vent pipe (13), wherein the lower end of the vent pipe (13) is plugged into the air outlet and the upper end thereof is inserted into the through hole A, and the air inlet is communicated with the vent pipe (13).

3. A labor-saving glue gun according to claim 2, characterized in that: The glue tank (2) comprises: The glue tank body (21) has threads on the outer wall of the bottom end and the outer wall of the top end of the glue tank body (21); the air inlet is provided at the bottom end of the glue tank body (21); the piston (8) is slidably connected in the glue tank body (21); and the discharge hole is provided at the top end of the glue tank body (21); A connecting end cover (22), wherein the opening end of the connecting end cover (22) is arranged upward and the inner wall thereof is provided with a thread and is threadedly connected to the thread at the bottom end of the compressed gas tank body (11); the bottom end of the connecting end cover (22) is provided with a first connecting hole, and a hollow stud (24) is fixed to the bottom end of the connecting end cover (22) corresponding to the first connecting hole; a connecting sleeve (14) communicating with the through hole A is fixed to the top end of the compressed gas end cover (12), and the inner wall of the connecting sleeve (14) is provided with a thread and is threadedly connected to the hollow stud (24); and a glue end cover (23), wherein the inner wall of the glue end cover (23) is provided with a thread and is threadedly connected to the thread at the top end of the glue tank body (21); the top end of the glue end cover (23) is provided with a through hole B and a limiting ring (25) is fixed to the inner top end of the through hole B; the limiting cylinder (3) is clamped on the limiting ring (25); and the discharge pipe (5) passes through the through hole B.

4. The labor-saving glue gun according to claim 3, characterized in that: The bottom end of the hollow stud (24) is a closed end and a second connection hole is provided in the middle of the closed end. A sleeve (26) is fixed to the closed end of the hollow stud (24) corresponding to the second connection hole, and the sleeve (26) is inserted into the through hole A; the upper end of the vent pipe (13) is inserted into the sleeve (26).

5. The labor-saving glue gun according to claim 3, characterized in that: The annular limiting portion (7) comprises: A first annular limiting portion (71), the first annular limiting portion (71) is fixed to the inner bottom end of the limiting cylinder (3); the elastic member (4) is inserted into the first annular limiting portion (71); A second annular limiting portion (72) is fixed to the inner bottom end of the first annular limiting portion (71); the bottom end of the elastic member (4) is in contact with the second annular limiting portion (72).

6. The labor-saving glue gun according to claim 3, characterized in that: The glue tank (2) further includes a sealing ring (27); an annular placement groove is provided at the top end of the limiting cylinder (3); and the sealing ring (27) is placed in the annular placement groove; the discharge pipe (5) passes through the sealing ring (27).

7. The labor-saving glue gun according to claim 3, characterized in that: It also includes a tapered limiting column (52), the large end of the limiting column (52) is fixed to the small end of the discharge pipe (5) and penetrates into the elastic member (4).

8. The labor-saving glue gun according to claim 3, characterized in that: The glue gun nozzle (6) comprises: A discharge end cover (61), the open end of the discharge end cover (61) is arranged downward and a feeding hole is provided at the top thereof, and a connecting tube (67) is fixed at the inner top end of the discharge end cover (61) corresponding to the feeding hole; the feed port of the glue gun nozzle (6) is the inner hole of the connecting tube (67) and the upper end of the discharge pipe (5) is inserted into the connecting tube (67); A discharge cone (62), the large diameter end of the discharge cone (62) is fixed and connected to the feed hole at the top end of the discharge end cover (61); A connecting sleeve (63), the connecting sleeve (63) is sleeved on the outer peripheral side of the discharge end cover (61) and its bottom end is in contact with the glue end cover (23), and a vertical plate (65) is vertically fixed on one side of the top surface of the connecting sleeve (63); and a pressing frame plate (64), wherein the pressing frame plate (64) is sleeved on the outer peripheral side of the discharge cone (62) and one end of the pressing frame plate (64) is hinged to the top end of the vertical plate (65); a pressing block (66) is fixed on the pressing frame plate (64) corresponding to the upper side of the discharge end cover (61), and the pressing block (66) can press the discharge end cover (61) as the pressing frame plate (64) rotates.

9. The labor-saving glue gun according to claim 8, characterized in that: The bottom surface of the pressing block (66) in contact with the discharge end cover (61) is an outwardly convex arc surface.

10. The labor-saving glue gun according to claim 8, characterized in that: The plate surface of the vertical plate (65) close to the top end thereof is bent toward the center direction close to the connecting sleeve (63).

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