Planetary gear box and bevel gear box positioning structure of glue gun

Abstract

The utility model discloses a positioning structure for a planetary gear box and a bevel gear box of a glue gun, which belongs to the technical field of electric tools and comprises the bevel gear box, a driving motor and the planetary gear box. One end of the fastener penetrates through the mounting hole in the planetary gear box and is in threaded connection with the threaded hole of the bevel gear box; the fixing mode of the planetary gear box and the bevel gear box of the glue gun adopts a locking mode from back to front, the planetary gear box and the driving motor are connected by screwing the box cover and the driving motor in advance, and then the planetary gear box is screwed into the box cover assembled with the motor, so that the glue gun is more convenient to assemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of power tools, and particularly relates to a positioning structure for a planetary gearbox and a bevel gearbox of a glue gun. Background Art

[0002] An electric glue gun is a power tool that uses the power provided by a motor to drive a push rod to extrude a glue tube through a transmission device, so that the glue flows out from the head of the glue tube to achieve the filling function. Compared with a manual glue gun, the electric glue gun has higher efficiency and more uniform glue output, so it is widely used.

[0003] Most of the market glue gun products fix the planetary gearbox and the bevel gearbox by screws from the front end to the back end. This structural form has the following pain points:

[0004] 1. When fixing the screw, the screwdriver bit is very easy to interfere with the bevel gearbox body or the bevel gearbox cover, and the assembly is very inconvenient;

[0005] 2. Before assembling the planetary gearbox and the bevel gearbox, it is necessary to fix the planetary gearbox and the motor in advance, and when assembling like this, the motor wires and the PCB board will be brought, and it is very inconvenient to install the screws for assembly. Content of the Utility Model

[0006] The purpose of the utility model is to propose a positioning structure for a planetary gearbox and a bevel gearbox of a glue gun in order to solve the problem that when fixing the screw of the existing glue gun, the screwdriver bit is very easy to interfere with the bevel gearbox body or the bevel gearbox cover, and the assembly is very inconvenient.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme: a positioning structure for a planetary gearbox and a bevel gearbox of a glue gun, including a bevel gearbox, a driving motor and a planetary gearbox. The planetary gearbox and the bevel gearbox are fixedly connected by a fastener. One end of the fastener passes through the mounting hole in the planetary gearbox and is threadedly connected to the threaded hole in the bevel gearbox.

[0008] As a further description of the above technical scheme:

[0009] A planetary transmission mechanism is installed in the planetary gearbox. A box cover is clamped on the side of the planetary gearbox away from the bevel gearbox. The box cover is fixedly connected to the driving motor. The input end of the planetary transmission mechanism is connected to the output end of the driving motor. The output end of the planetary transmission mechanism is connected to an output shaft. A driving bevel gear is installed on the output shaft. The driving bevel gear is meshed with a driven bevel gear.

[0010] As a further description of the above technical scheme:

[0011] On one side of the bevel gearbox, a transmission box is fixed. Inside the transmission box, there are a rack, a first gear, a second gear, and a third gear. The first gear is meshed with the second gear. The second gear is coaxially arranged with the driven bevel gear, and the first gear is coaxially arranged with the third gear. A push block is fixed at the end of the rack.

[0012] As a further description of the above technical solution:

[0013] On one side of the transmission box, a limiting cylinder is fixed. The rack is horizontally slidably arranged in the limiting cylinder, and a rubber hose bracket is fixed on the limiting cylinder. The limiting cylinder is fixedly connected to the rubber hose bracket.

[0014] As a further description of the above technical solution:

[0015] A handle is installed at one end of the rack.

[0016] As a further description of the above technical solution:

[0017] The bevel gearbox, the transmission box, and the limiting cylinder are of an integrally formed structure.

[0018] As a further description of the above technical solution:

[0019] A control switch for controlling the driving motor is also installed on the transmission box.

[0020] As a further description of the above technical solution:

[0021] The fasteners are screws.

[0022] As a further description of the above technical solution:

[0023] A guide wheel is rotatably installed on the transmission box, and one side of the guide wheel is in rolling contact with the rack.

[0024] As a further description of the above technical solution:

[0025] A first rotating shaft and a second rotating shaft are also rotatably installed on the transmission box. The second gear and the driven bevel gear are fixed on the first rotating shaft, and the first gear and the third gear are fixed on the second rotating shaft.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0027] 1. For the present utility model, the fixing form of the planetary gearbox and the bevel gearbox of the glue gun adopts a locking method from the back to the front. The connection between the planetary gearbox and the driving motor is tightened with the driving motor in advance through the box cover, and then the planetary gearbox is screwed into the box cover after the motor is assembled. In this way, the assembly is more convenient.

[0028] 2. The structural form of the present utility model is simpler, and the size is more compact. Description of the Drawings

[0029] Figure 1 It is a schematic three-dimensional structure view of the first perspective of the positioning structure of the planetary gearbox and the bevel gearbox of a glue gun.

[0030] Figure 2 It is a schematic three-dimensional structure view of the second perspective of the positioning structure of the planetary gearbox and the bevel gearbox of a glue gun.

[0031] Figure 3 It is a schematic connection view of the speed reducer and the housing in the present utility model.

[0032] Figure 4 It is Figure 3 the top view of.

[0033] Figure 5 It is Figure 3 the sectional view taken along the A-A direction in.

[0034] Figure 6 It is a schematic three-dimensional structure view of the inside of the planetary gearbox in the positioning structure of the planetary gearbox and the bevel gearbox of a glue gun.

[0035] Figure 7 It is Figure 1 the three-dimensional view with the housing removed.

[0036] Figure 8 It is Figure 2 the three-dimensional view with the housing removed.

[0037] Legend description:

[0038] 1. Housing; 101. Bevel gearbox; 102. Transmission box; 103. Limiting cylinder; 2. Hose holder; 3. Rack; 4. Handle; 5. Driving motor; 6. Speed reducer; 601. Planetary gearbox; 602. Planetary transmission mechanism; 603. Output shaft; 604. Fastener; 605. Cover; 7. Control switch; 8. Pusher block; 9. Guide wheel; 10. First gear; 11. Second gear; 12. Driving bevel gear; 13. Driven bevel gear; 14. First rotating shaft; 15. Third gear; 16. Second rotating shaft. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0040] Please refer to Figure 1-8, the present utility model provides a technical solution: a positioning structure for the planetary gearbox and bevel gearbox of a glue gun, including a bevel gearbox 101, a driving motor 5 and a planetary gearbox 601. The planetary gearbox 601 is fixedly connected to the bevel gearbox 101 through a fastener 604. One end of the fastener 604 passes through the mounting hole in the planetary gearbox 601 and is threadedly connected to the threaded hole in the bevel gearbox 101. It should be noted that the fastener 604 is a screw, and the screw is installed from the inside of the planetary gearbox 601. The threaded part of the screw is threadedly connected to the bevel gearbox 101 to realize the fixation of the planetary gearbox 601 and the bevel gearbox 101. The number of screws is 4 - 8. The planetary gearbox 601 is a box-type structure with one end open, and the open end faces the driving motor 5. During specific installation, there will be no problem of bit interference, thus facilitating the assembly of the glue gun.

[0041] In a specific embodiment of the present utility model, the planetary gearbox 601, the planetary transmission mechanism 602, the output shaft 603, the fastener 604 and the box cover 605 form a reducer 6. A planetary transmission mechanism 602 is installed in the planetary gearbox 601. A box cover 605 is snap-connected to the side of the planetary gearbox 601 away from the bevel gearbox 101. The box cover 605 is fixedly connected to the driving motor 5. The input end of the planetary transmission mechanism 602 is connected to the output end of the driving motor 5. The output end of the planetary transmission mechanism 602 is connected to an output shaft 603. A driving bevel gear 12 is installed on the output shaft 603. The driving bevel gear 12 is meshed with a driven bevel gear 13. When the driving motor 5 operates, it drives the input end of the planetary transmission mechanism 602 to rotate. After deceleration, it drives the output shaft 603 to rotate. Finally, the output shaft 603 drives the driving bevel gear 12 to rotate, and the driving bevel gear 12 drives the driven bevel gear 13 to rotate.

[0042] In a specific embodiment of the present utility model, a transmission box 102 is fixed to one side of the bevel gearbox 101. A rack 3, a first gear 10, a second gear 11 and a third gear 15 are arranged in the transmission box 102. The first gear 10 is meshed with the second gear 11. The second gear 11 is coaxially arranged with the driven bevel gear 13. The first gear 10 is coaxially arranged with the third gear 15. A push block 8 is fixed to the end of the rack 3. When the driven bevel gear 13 rotates, it drives the second gear 11 to rotate. The second gear 11 rotates to drive the first gear 10 to rotate. The first gear 10 rotates to drive the third gear 15 to rotate. The third gear 15 rotates to drive the rack 3 to move. The rack 3 moves to push the push block 8, and the push block 8 is used to push the rubber tube to realize the glue application operation.

[0043] In a specific embodiment of the present utility model, a limiting cylinder 103 is fixed to one side of the transmission box 102. The rack 3 is horizontally slidably arranged in the limiting cylinder 103. A rubber tube holder 2 is fixed to the limiting cylinder 103. The limiting cylinder 103 is fixedly connected to the rubber tube holder 2. A rubber tube is installed in the rubber tube holder 2.

[0044] In a specific embodiment of the present utility model, a handle 4 is installed at one end of the rack 3, which is convenient for the user to hold.

[0045] In a specific embodiment of the present utility model, the bevel gear box 101, the transmission box 102 and the limiting cylinder 103 are of an integrally formed structure, and the bevel gear box 101, the transmission box 102 and the limiting cylinder 103 form the housing 1.

[0046] In a specific embodiment of the present utility model, a control switch 7 for controlling the driving motor 5 is further installed on the transmission box 102. It should be noted that the glue gun further includes a housing, the housing is fixed outside the housing 1, the control switch 7 is installed on the housing, and components such as a battery are also installed on the housing.

[0047] In a specific embodiment of the present utility model, a guide wheel 9 is rotatably installed on the transmission box 102. One side of the guide wheel 9 is in rolling contact with the rack 3, and the guide wheel 9 can improve the movement stability of the rack 3.

[0048] In a specific embodiment of the present utility model, a first rotating shaft 14 and a second rotating shaft 16 are further rotatably installed on the transmission box 102. The second gear 11 and the driven bevel gear 13 are fixed on the first rotating shaft 14, and the first gear 10 and the third gear 15 are fixed on the second rotating shaft 16.

[0049] When assembling the present utility model, the screw is installed from the inside of the planetary gear box 601, and the threaded part of the screw is threadedly connected with the bevel gear box 101 to fix the planetary gear box 601 and the bevel gear box 101. Then, the planetary transmission mechanism 602 is installed inside the planetary gear box 601. The box cover 605 and the driving motor 5 can be fixed in advance by screws. Finally, the box cover 605 and the planetary gear box 601 are rotationally clamped together;

[0050] When the present utility model is in use, when the driving motor 5 operates, it drives the input end of the planetary transmission mechanism 602 to rotate. After deceleration, it drives the output shaft 603 to rotate. Finally, the output shaft 603 drives the driving bevel gear 12 to rotate, the driving bevel gear 12 drives the driven bevel gear 13 to rotate, the driven bevel gear 13 drives the second gear 11 to rotate, the second gear 11 drives the first gear 10 to rotate, the first gear 10 drives the third gear 15 to rotate, the third gear 15 drives the rack 3 to move, and the rack 3 moves to push the push block 8, and the push block 8 is used to push the rubber tube to realize the glue application operation.

[0051] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A planetary gearbox and bevel gearbox positioning structure for a glue gun, comprising a bevel gearbox (101), a drive motor (5) and a planetary gearbox (601), characterized in that: The planetary gear box (601) and the bevel gear box (101) are fixedly connected via a fastener (604); one end of the fastener (604) passes through a mounting hole in the planetary gear box (601) and is threadedly connected to a threaded hole in the bevel gear box (101).

2. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 1, characterized in that: A planetary transmission mechanism (602) is installed in the planetary gear box (601); a box cover (605) is clamped on a side of the planetary gear box (601) away from the bevel gear box (101); the box cover (605) is fixedly connected to the drive motor (5); an input end of the planetary transmission mechanism (602) is connected to an output end of the drive motor (5); an output end of the planetary transmission mechanism (602) is connected to an output shaft (603); a driving bevel gear (12) is installed on the output shaft (603); and the driving bevel gear (12) is meshingly connected to a driven bevel gear (13).

3. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 2, characterized in that: A transmission box (102) is fixed to one side of the bevel gear box (101), and a rack (3), a first gear (10), a second gear (11) and a third gear (15) are arranged in the transmission box (102), the first gear (10) is meshingly connected with the second gear (11), the second gear (11) is coaxially arranged with the driven bevel gear (13), the first gear (10) is coaxially arranged with the third gear (15), and a push block (8) is fixed to the end of the rack (3).

4. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 3, characterized in that: A limiting cylinder (103) is fixed on one side of the transmission box (102), the rack (3) is horizontally slidably arranged in the limiting cylinder (103), a hose rack (2) is fixed on the limiting cylinder (103), and the limiting cylinder (103) is fixedly connected to the hose rack (2).

5. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 3, characterized in that: A handle (4) is mounted on one end of the rack (3).

6. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 4, characterized in that: The bevel gear box (101), the transmission box (102) and the limiting cylinder (103) are an integrally formed structure.

7. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 3, characterized in that: The transmission box (102) is also provided with a control switch (7) for controlling the drive motor (5).

8. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 1, characterized in that: The fastener (604) is a screw.

9. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 3, characterized in that: A guide wheel (9) is rotatably mounted on the transmission box (102), and one side of the guide wheel (9) is in rolling contact with the rack (3).

10. The positioning structure of a planetary gearbox and a bevel gearbox of a glue gun according to claim 3, characterized in that: A first rotating shaft (14) and a second rotating shaft (16) are also rotatably mounted on the transmission box (102); the second gear (11) and the driven bevel gear (13) are fixed on the first rotating shaft (14); and the first gear (10) and the third gear (15) are fixed on the second rotating shaft (16).

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