Rivet pulling, nut pulling and gun drill three-in-one multifunctional lithium battery tool

Abstract

The utility model relates to the field of electric tools, in particular to a rivet pulling, nut pulling and gun drill three-in-one multifunctional lithium battery tool. The gun drill comprises a gun drill main body, a riveting gun head, a nut pulling gun head and a gun drill head, the pistol drill main body comprises a gear box and a brushless motor; the hand riveter head comprises a fixing sleeve clamped on the gear box, a connecting sleeve a which is in threaded connection with the gear box and internally presses the fixing sleeve, an outer sleeve which is in threaded connection with the fixing sleeve, a screw rod which is connected with the output end of the gear box, and a screw rod fixing sleeve which is in threaded connection with the screw rod and is arranged on the inner side of the outer sleeve in a sliding manner; the gun head clamping assembly is connected with the screw rod fixing sleeve and the outer sleeve; the nut pulling gun head comprises a connecting shaft a connected with the output end of the gearbox, a bearing a arranged on the connecting shaft a in a sleeving mode, a connecting sleeve b which is in threaded connection with the gearbox and internally presses the bearing a, a pull rod sleeve connected with the connecting sleeve b and a pull rod connected with the connecting shaft a. Different gun heads can be conveniently replaced according to use requirements.

Description

Technical Field

[0001] The utility model relates to the field of electric tools, in particular to a three-in-one multifunctional lithium electric tool for pulling rivets, pulling nuts and gun drilling. Background Art

[0002] In industries such as home decoration, equipment installation, machinery manufacturing and engineering construction, pistol drills, rivet guns and nut guns are essential tools. Due to their different functions, each type of work must use a single lithium battery tool. However, this also causes a lot of inconvenience. When working at heights, frequent tool replacement may also cause safety hazards. On the other hand, the subdivision of tools also causes a waste of resources. Utility Model Content

[0003] The utility model aims to solve the problems existing in the background technology and proposes a three-in-one multifunctional lithium battery tool for pulling rivets, pulling nuts and gun drilling, which can conveniently replace different gun heads according to use requirements.

[0004] The technical solution of the utility model is a three-in-one multifunctional lithium-powered tool for pulling rivets, pulling nuts and gun drilling, which comprises a pistol drill body, a rivet gun head, a nut pulling gun head and a gun drill head; the pistol drill body comprises a gear box and a brushless motor, and the brushless motor is connected to the input end of the gear box; the rivet gun head comprises a fixing sleeve clamped on the gear box, a connecting sleeve a threadedly connected to the gear box and pressing the fixing sleeve internally, an outer sleeve threadedly connected to the fixing sleeve, a screw connected to the output end of the gear box, a screw fixing sleeve threadedly connected to the screw and slidably arranged on the inner side of the outer sleeve, and a gun head clamping assembly connected to the screw fixing sleeve and the outer sleeve; the nut pulling gun head comprises a connecting shaft a connected to the output end of the gear box, a bearing a sleeved on the connecting shaft a, a connecting sleeve b threadedly connected to the gear box and pressing the bearing a internally, a pull rod sleeve connected to the connecting sleeve b, and a pull rod connected to the connecting shaft a; the gun drill head comprises a connecting shaft b connected to the output end of the gear box, a connecting sleeve c threadedly connected to the gear box and pressing the connecting shaft b internally, and a chuck connected to the connecting shaft b.

[0005] Preferably, the gun head clamping assembly includes a claw fixing sleeve threadedly connected to the screw fixing sleeve, three melon seed slices loaded on the inner side of the claw fixing sleeve, a top sleeve arranged on the inner side of the claw fixing sleeve and abutting against the melon seed slices, and a push rod spring tensioned between the top sleeve and the screw fixing sleeve.

[0006] Preferably, a screw spring is tensionedly connected between the screw and the screw fixing sleeve.

[0007] Preferably, the outer end of the outer sleeve is threadedly connected to a guide nozzle fixing sleeve, the guide nozzle fixing sleeve is threadedly connected to the guide nozzle, and the guide nozzle has a coaxially distributed through passage.

[0008] Preferably, a retaining spring and a gasket are respectively arranged on both axial sides of the bearing a, and a plane bearing is arranged between the pull rod sleeve and the pull rod.

[0009] Preferably, a bearing b is provided between the connecting shaft b and the connecting sleeve c.

[0010] Compared with the prior art, the utility model has the following beneficial technical effects:

[0011] The utility model can conveniently replace different gun heads according to the use requirements, namely, a rivet gun head, a nut gun head and a gun drill head, with a high degree of modularity, no need to replace different tools, low cost and safe use. The rivet gun head is used to pull rivets to achieve riveting, the nut gun head is used to pull the rivet nut and deform the rivet nut to achieve rivet connection, and the gun drill head is used to clamp a conventional drill bit for drilling, tapping and other operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an exploded view of the structure of the embodiment of the utility model when the gun head is not installed;

[0013] Figure 2 This is a schematic diagram of the structure of a rivet gun head according to an embodiment of the utility model;

[0014] Figure 3 for Figure 2 Exploded diagram of the structure;

[0015] Figure 4 This is a schematic structural diagram of a nut pulling gun head according to an embodiment of the utility model;

[0016] Figure 5 It is a schematic structural diagram of a gun drill bit according to an embodiment of the utility model.

[0017] 1. Shift button; 2. Right housing; 3. Gear box; 4. Brushless motor; 5. Left housing; 6. Reversing button; 7. Stepless speed switch; 8. Controller; 9. Battery pack; 10. Transparent lampshade; 11. Keypad; 12. Fixing sleeve; 13. Outer sleeve; 14. Connecting sleeve a; 15. Claw piece fixing sleeve; 16. Melon seed piece; 17. Top sleeve; 18. Push rod spring; 19. Screw fixing sleeve; 20. Guide nozzle fixing sleeve; 21. Guide nozzle; 22. Screw; 23. Screw spring; 24. Connecting shaft a; 25. Retaining spring; 26. Bearing a; 27. Gasket; 28. Plane bearing; 29. ​​Pull rod sleeve; 30. Pull rod; 31. Connecting shaft b; 32. Connecting sleeve c; 33. Bearing b; 34. Chuck. DETAILED DESCRIPTION

[0018] like Figure 1-Figure 5 As shown, the three-in-one multifunctional lithium-powered tool for pulling rivets, pulling nuts and pulling gun drills proposed in this embodiment includes a pistol drill body, a rivet gun head, a nut pulling gun head and a gun drill head.

[0019] The pistol drill body includes a shift push button 1, a right housing 2, a gear box 3, a brushless motor 4, a left housing 5, a reversing push button 6, a stepless speed regulating switch 7, a controller 8, a battery pack 9, a transparent lampshade 10 and a keypad 11. The shift push button 1, the right housing 2, the gear box 3, the brushless motor 4, the left housing 5, the reversing push button 6, the stepless speed regulating switch 7 and the battery pack 9 all adopt similar structures in existing pistol drills. The right housing 2 and the left housing 5 are detachably connected. The gear box 3 and the brushless motor 4 are both installed in the housing. The shift push button 1, the reversing push button 6, the stepless speed regulating switch 7, the controller 8 and the battery pack 9 are all installed on the housing. The keypad 11 is installed on the right housing 2 and the left housing 5, and is electrically connected to the controller 8, and is used to control the tool to switch to manual gear. The transparent lampshade 10 covers the display screen area in the middle of the keypad 11. The brushless motor 4 is connected to the input end of the gear box 3, and the battery pack 9 supplies power to the brushless motor 4. The battery pack 9 is detachable and can be replaced with another fully charged battery pack 9 for use after the power is used up.

[0020] like Figure 1-Figure 3 As shown, the rivet gun head includes a fixing sleeve 12 clamped on the gear box 3, a connecting sleeve a14 threadedly connected to the gear box 3 and pressing the fixing sleeve 12 inwardly, an outer sleeve 13 threadedly connected to the fixing sleeve 12, a screw 22 connected to the output end of the gear box 3, a screw fixing sleeve 19 threadedly connected to the screw 22 and slidably arranged inside the outer sleeve 13, and a gun head clamping assembly connected to the screw fixing sleeve 19 and the outer sleeve 13. The inner wall of the outer sleeve 13 has a protruding guide platform, and the outer wall of the screw fixing sleeve 19 has a protruding sliding platform. The sliding platform and the guide platform are staggered and slidably connected, and the screw fixing sleeve 19 can move axially inside the outer sleeve 13. The gun head clamping assembly is used to insert the rivet, and the brushless motor 4 drives the screw 22 to rotate through the gear box 3, and the screw 22 drives the screw fixing sleeve 19 to move along a straight line, and the screw fixing sleeve 19 drives the gun head clamping assembly to move, pull the rivet inward, and realize riveting.

[0021] The gun head clamping assembly includes a claw piece fixing sleeve 15 threadedly connected to a screw fixing sleeve 19, three melon seed pieces 16 loaded inside the claw piece fixing sleeve 15, a top sleeve 17 arranged inside the claw piece fixing sleeve 15 and abutting against the melon seed pieces 16, and a push rod spring 18 tensionedly connected between the top sleeve 17 and the screw fixing sleeve 19. A screw spring 23 is tensionedly connected between the screw 22 and the screw fixing sleeve 19. The rivet is inserted between the three melon seed pieces 16 for clamping. After the three melon seed pieces 16 are installed inside the claw piece fixing sleeve 15, the top sleeve 17 is pressed against the three melon seed pieces 16, the push rod spring 18 is pressed between the top sleeve 17 and the screw fixing sleeve 19, the claw piece fixing sleeve 15 and the screw fixing sleeve 19 are screwed, the push rod spring 18 is compressed, the three melon seed pieces 16 are pressed against, and the rivet can be clamped stably.

[0022] The outer end of the outer sleeve 13 is threadedly connected with a guide nozzle fixing sleeve 20, and the guide nozzle fixing sleeve 20 is threadedly connected with a guide nozzle 21, and the guide nozzle 21 has a coaxially distributed through channel. When clamping the rivet, the rivet is passed through the through channel and clamped by three melon seed pieces 16. If the rivet is stuck, the guide nozzle fixing sleeve 20 and the guide nozzle 21 are removed, and the guide nozzle 21 is pushed toward the melon seed piece 16, the push rod spring 18 is further compressed, and the three melon seed pieces 16 release the clamping of the rivet, so that the stuck rivet can be easily removed.

[0023] like Figure 1 and Figure 4 As shown, the nut pulling gun head includes a connecting shaft a24 connected to the output end of the gear box 3, a bearing a26 sleeved on the connecting shaft a24, a connecting sleeve b threadedly connected to the gear box 3 and pressing the bearing a26 inside, a pull rod sleeve 29 connected to the connecting sleeve b, and a pull rod 30 connected to the connecting shaft a24. A retaining spring 25 and a gasket 27 are respectively arranged on both sides of the axial direction of the bearing a26, and a plane bearing 28 is arranged between the pull rod sleeve 29 and the pull rod 30. The pull rod 30 has an external thread that can be adapted to the internal thread of the pull rivet nut. When the pull rivet nut is rotated and pulled by the pull rod 30, it will deform to achieve the pull riveting connection. In the specific operation, the pull rivet nut is aligned and placed on the end of the pull rod 30, the main body of the pistol drill is controlled to start, and the pull rod 30 is screwed into the inner side of the pull rivet nut. When the end of the pull rivet nut abuts against the end of the pull rod sleeve 29, it continues to run until the pull rivet nut is deformed.

[0024] like Figure 1 and Figure 5 As shown, the gun drill bit includes a connecting shaft b31 connected to the output end of the gear box 3, a connecting sleeve c32 threadedly connected to the gear box 3 and pressing the connecting shaft b31, and a chuck 34 connected to the connecting shaft b31. The chuck 34 can clamp a drill bit commonly used with a pistol drill to perform drilling, tapping, etc. A bearing b33 is provided between the connecting shaft b31 and the connecting sleeve c32 to ensure smooth rotation connection.

[0025] This embodiment can conveniently replace different gun heads according to usage requirements, namely, a rivet gun head, a nut gun head and a gun drill head, with a high degree of modularity, no need to replace different tools, low cost and safe use. The rivet gun head is used to pull rivets to achieve riveting, the nut gun head is used to pull the rivet nut and deform the rivet nut to achieve rivet connection, and the gun drill head is used to clamp a conventional drill bit for drilling, tapping and other operations.

[0026] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A three-in-one multifunctional lithium battery tool for pulling rivets, pulling nuts and gun drilling, characterized by: include: The pistol drill body comprises a gear box (3) and a brushless motor (4), wherein the brushless motor (4) is connected to an input end of the gear box (3); A rivet gun head, comprising a fixing sleeve (12) clamped on a gear box (3), a connecting sleeve a (14) threadedly connected to the gear box (3) and pressing the fixing sleeve (12) inside, an outer sleeve (13) threadedly connected to the fixing sleeve (12), a screw (22) connected to the output end of the gear box (3), a screw fixing sleeve (19) threadedly connected to the screw (22) and slidably arranged inside the outer sleeve (13), and a gun head clamping assembly connected to the screw fixing sleeve (19) and the outer sleeve (13); A nut pulling gun head, comprising a connecting shaft a (24) connected to an output end of a gear box (3), a bearing a (26) sleeved on the connecting shaft a (24), a connecting sleeve b threadedly connected to the gear box (3) and pressing the bearing a (26) inside, a pulling rod sleeve (29) connected to the connecting sleeve b, and a pulling rod (30) connected to the connecting shaft a (24); The gun drill bit comprises a connecting shaft b (31) connected to the output end of a gear box (3), a connecting sleeve c (32) threadedly connected to the gear box (3) and pressing the connecting shaft b (31) inwardly, and a chuck (34) connected to the connecting shaft b (31).

2. The three-in-one multifunctional lithium-powered tool for pulling rivets, pulling nuts and gun drilling according to claim 1 is characterized in that: The gun head clamping assembly comprises a claw piece fixing sleeve (15) threadedly connected to a screw fixing sleeve (19), three melon seed pieces (16) filled inside the claw piece fixing sleeve (15), a top sleeve (17) arranged inside the claw piece fixing sleeve (15) and abutting against the melon seed pieces (16), and a push rod spring (18) tensionedly connected between the top sleeve (17) and the screw fixing sleeve (19).

3. The three-in-one multifunctional lithium-powered tool for pulling rivets, pulling nuts and gun drilling according to claim 2 is characterized in that: A screw spring (23) is tensionedly connected between the screw (22) and the screw fixing sleeve (19).

4. The three-in-one multifunctional lithium-powered tool for pulling rivets, pulling nuts and gun drilling according to claim 3 is characterized in that: The outer end of the outer sleeve (13) is threadedly connected with a guide nozzle fixing sleeve (20), and the guide nozzle fixing sleeve (20) is threadedly connected with a guide nozzle (21), and the guide nozzle (21) has a coaxially distributed through passage.

5. The three-in-one multifunctional lithium-powered tool for pulling rivets, pulling nuts and gun drilling according to claim 1 is characterized in that: A retaining spring (25) and a gasket (27) are respectively arranged on both axial sides of the bearing a (26), and a plane bearing (28) is arranged between the pull rod sleeve (29) and the pull rod (30).

6. The three-in-one multifunctional lithium-powered tool for pulling rivets, pulling nuts and gun drilling according to claim 1 is characterized in that: A bearing b (33) is arranged between the connecting shaft b (31) and the connecting sleeve c (32).

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