Pistol drill with multifunctional adapter

Abstract

The utility model relates to the field of pistol drills, in particular to a pistol drill with a multifunctional adapter. The multifunctional pistol drill comprises a pistol drill body, a grabbing frame and a multifunctional conversion head. The grabbing frame comprises a support and a bottom cover arranged at the bottom of the support. The multifunctional conversion head comprises a rivet pulling conversion head, a nut pulling conversion head and an electric hammer conversion head which share a grabbing frame. The rivet pulling conversion head comprises an outer sleeve arranged in the support and provided with a transverse sliding way, a screw rotationally arranged in the outer sleeve, a screw sleeve arranged in the outer sleeve in a sliding mode through the transverse sliding way and capable of being in threaded connection with the screw, a melon-seed-shaped piece fixing sleeve in threaded connection with the end of the screw sleeve, and a melon-seed-shaped piece top sleeve. The three melon-seed-shaped sheets are uniformly distributed in a circumferential shape. The gun drill has the functions of rivet pulling, nut pulling and electric hammer impacting by replacing the adapter, the cost is reduced, and the gun drill is convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hand drill, in particular to a hand drill with multifunctional conversion head. BACKGROUND

[0002] In the industry of home decoration, equipment installation, mechanical manufacturing and engineering construction, the pull rivet gun, the pull nut gun and the electric hammer gun are indispensable tools, due to the different functions, each type of work must use single lithium battery tool, which causes many inconvenience, workers need to be equipped with various tool guns, and the subdivision of tool guns also causes the cost increase, and is inconvenient to carry. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at the problems in the background art, and provides a hand drill with multifunctional conversion head, which can have the functions of pull rivet, pull nut and electric hammer impact by replacing the conversion head, reduce the cost and be convenient to carry.

[0004] The utility model discloses a kind of hand drills with multifunctional conversion head, including hand drill main body, grip frame and multifunctional conversion head;Grip frame includes support and the bottom cover of setting in support bottom, support has through installation passage;Multifunctional conversion head includes common grip frame's pull rivet conversion head, pull nut conversion head and electric hammer conversion head, pull rivet conversion head includes the outer sleeve of setting in support and having transverse slide, the screw rod of rotationally setting in outer sleeve, the screw rod sleeve of slidingly setting in outer sleeve and can be connected with screw rod thread, the melon seed piece fixed sleeve threadedly connected with screw rod sleeve end, melon seed piece top sleeve between screw rod sleeve end and melon seed piece fixed sleeve, three melon seed pieces that are circumferentially evenly distributed and located melon seed piece top sleeve front side in melon seed piece fixed sleeve inside, the guide nozzle fixed sleeve threadedly connected with outer sleeve front end and the guide nozzle threadedly connected with guide nozzle fixed sleeve and located melon seed piece front side, guide nozzle has guide hole, screw rod sleeve outer periphery has the convex strip portion that is in line with transverse slide, screw rod is connected with hand drill main body output end.

[0005] Preferably, first bearing is installed between support and screw rod, outer sleeve end is threadedly connected with first locking nut, which abuts first bearing on convex ring of screw rod.

[0006] Preferably, first spring is sleeved on the outer periphery of screw rod, which can abut screw rod sleeve.

[0007] Preferably, outer sleeve outer periphery has strip hole distributed along length direction, position display screw is threadedly connected with screw rod sleeve, and position display screw moves in strip hole inside.

[0008] Preferably, the pull nut conversion head comprises a mounting cylinder arranged in the support, a rotating rod rotatably arranged in the mounting cylinder, a pull rod connected with the rotating rod and having exposed external threads at the front end, and a pull rod sleeve arranged in the mounting cylinder and for rotatably mounting the pull rod.

[0009] Preferably, a second bearing is arranged between the rotating rod and the mounting cylinder, and second locking nuts and a connecting sleeve are threadedly connected to the two ends of the mounting cylinder respectively, the second locking nuts abutting against the external convex step of the rotating rod, and the connecting sleeve is located at the outer circumferential side of the pull rod sleeve.

[0010] Preferably, the electric hammer conversion head comprises an outer tube arranged in the support, a main shaft rotatably arranged in the outer tube, movable teeth arranged on the main shaft, fixed teeth arranged in the outer tube and located outside the main shaft, and a second spring sleeved on the outer circumferential side of the main shaft and tensioning the movable teeth towards the fixed teeth, the movable teeth having first teeth arranged in a ring shape, the fixed teeth having second teeth arranged in a ring shape and towards the first teeth, and the main shaft being connected with the output end of the pistol drill body.

[0011] Preferably, a third bearing, a fourth bearing and a fifth bearing are arranged between the outer tube and the main shaft, and a third spring is arranged in abutment between the fixed teeth and the fifth bearing.

[0012] Preferably, the movable teeth have hexagonal holes, and the main shaft has a hexagonal portion for clamping the movable teeth through the hexagonal holes.

[0013] Compared with the prior art, the utility model has the beneficial technical effects that:

[0014] The utility model can make the pistol drill have the functions of pull riveting, pull nut and electric hammer impact by replacing the pull riveting conversion head, the pull nut conversion head and the electric hammer conversion head, reduce the cost and be convenient for carrying. The replacement operation of the conversion head is convenient, one pistol drill body is shared, and one gripping support is shared. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a rear side view structure schematic diagram of the pull riveting conversion head applied to the utility model embodiment one;

[0016] Figure 2 It is a front side view structure schematic diagram of the pull riveting conversion head applied to the utility model embodiment one;

[0017] Figure 3 It is a structure explosion drawing of the pull riveting conversion head applied to the utility model embodiment one;

[0018] Figure 4 It is Figure 3 A structure schematic diagram of the middle screw sleeve;

[0019] Figure 5This is a schematic diagram of the structure of the pull nut adapter used in Embodiment 2 of this utility model;

[0020] Figure 6 This is a cross-sectional view of the structure of the pull nut adapter head used in Embodiment 2 of this utility model;

[0021] Figure 7 This is a schematic diagram of the electric hammer drill converter head used in Embodiment 3 of this utility model;

[0022] Figure 8 This is a partial structural cross-sectional view of the electric hammer drill converter head used in Embodiment 3 of this utility model;

[0023] Figure 9 for Figure 8 A schematic diagram of the spindle structure in the middle;

[0024] Figure 10 for Figure 8 A schematic diagram of the movable tooth structure.

[0025] Figure label:

[0026] 11. Bracket; 12. Bottom cover; 13. Screw; 14. First locking nut; 15. Outer sleeve; 151. Strip hole; 16. First bearing; 17. Screw sleeve; 18. Position indicator screw; 19. Sunflower seed chip fixing sleeve; 20. Sunflower seed chip top sleeve; 21. Sunflower seed chip; 22. Guide nozzle fixing sleeve; 23. Guide nozzle; 24. First spring;

[0027] 25. Rotating rod; 26. Mounting cylinder; 27. Second locking nut; 28. Second bearing; 29. ​​Pull rod; 30. Pull rod sleeve; 31. Connecting sleeve;

[0028] 32. Outer tube; 33. Main shaft; 331. Hexagonal prism part; 34. Movable tooth; 312. Hexagonal prism hole; 35. Fixed tooth; 36. Third bearing; 37. Fourth bearing; 38. Fifth bearing; 39. Second spring; 40. Third spring. Detailed Implementation

[0029] Example 1

[0030] like Figures 1-4 As shown in the figure, this embodiment proposes a pistol drill with a multi-functional conversion head, including a pistol drill body, a gripping frame, and a riveting conversion head.

[0031] like Figures 1-3 As shown, the gripper includes a bracket 11 and a bottom cover 12 disposed at the bottom of the bracket 11. The bracket 11 has a through mounting channel. The bracket 11 includes a horizontally distributed mounting cylinder and a vertically distributed grip handle, forming an overall "T" shape. The mounting channel is located inside the mounting cylinder. The bottom cover 12 is connected to the bottom end of the grip handle.

[0032] The pull-rivet conversion head comprises an outer sleeve 15 provided in the bracket 11 and having a transverse slide, a screw rod 13 rotatably provided in the outer sleeve 15, a screw rod sleeve 17 slidably provided in the outer sleeve 15 through the transverse slide and threadedly connected with the screw rod 13, a melon-seed piece fixing sleeve 19 threadedly connected with the end of the screw rod sleeve 17, a melon-seed piece top sleeve 20 located between the end of the screw rod sleeve 17 and the melon-seed piece fixing sleeve 19, three melon-seed pieces 21 evenly distributed in a circle and located inside the melon-seed piece fixing sleeve 19 and in front of the melon-seed piece top sleeve 20, a guide nozzle fixing sleeve 22 threadedly connected with the front end of the outer sleeve 15, and a guide nozzle 23 threadedly connected with the guide nozzle fixing sleeve 22 and located in front of the melon-seed pieces 21, the guide nozzle 23 having a guide hole for the rivet head to pass through. The three melon-seed pieces 21 have engaging threads therebetween, and when they are folded inward, the rivet head can be pulled inward. The outer periphery of the screw rod sleeve 17 has a convex strip part matching the transverse slide, so that the screw rod sleeve 17 can slide linearly in the outer sleeve 15. The screw rod 13 is connected with the output end of the hand drill body, and has a first triangular prism part, so as to be effectively connected with the output end of the existing hand drill body.

[0033] A first bearing 16 is mounted between the bracket 11 and the screw rod 13, and a first locking nut 14 threadedly connected with the end of the outer sleeve 15 abuts against the convex ring of the screw rod 13, so as to lock the mounting position of the first bearing 16 and stabilize the rotation of the screw rod 13 in the fixed area. The outer periphery of the screw rod 13 is sleeved with a first spring 24 abutting against the screw rod sleeve 17. When the screw rod sleeve 17 moves toward the screw rod 13, the first spring 24 is compressed, and at this time, the pull-rivet operation is performed until the rivet is pulled off; when the pull-rivet operation is completed, the screw rod 13 is reversely rotated to perform the rivet head withdrawing operation.

[0034] The outer periphery of the outer sleeve 15 has strip-shaped holes 151 distributed along the length direction, and the screw rod sleeve 17 is threadedly connected with a position display screw 18 movably inside the strip-shaped holes 151. The position display screw 18 is used to indicate the state of the pull-rivet operation, so that the working process of the pull-rivet is in a known state, and the user can directly determine the state of the pull-rivet operation by checking the position of the position display screw 18, so as to ensure that the rivet is completely withdrawn after the pull-rivet operation and the working efficiency is ensured.

[0035] The pull-rivet conversion head of the embodiment can be mounted on the bracket 11, and the triangular prism part at the end of the screw rod 13 is connected with the output end of the hand drill body. The worker holds the shell of the hand drill body with one hand and holds the bracket 11 with the other hand, and connects the pull-rivet conversion head with the hand drill body. The pull-rivet and rivet withdrawing operations are performed by controlling the forward and reverse rotation of the screw rod 13. During the pull-rivet operation, the screw rod 13 is clockwise rotated, the screw rod sleeve 17 moves linearly inward, the melon-seed piece top sleeve 20 is separated from the melon-seed pieces 21, the melon-seed pieces 21 tightly bite the rivet, and follow the melon-seed piece fixing sleeve 19 to move linearly inward until the rivet is pulled off.

[0036] Embodiment Two

[0037] As shown in Figure 5 and Figure 6 The embodiment proposes a hand drill with multi-functional conversion head. Compared with the first embodiment, the embodiment includes a pull nut conversion head which can be installed on the holding frame. The pull nut conversion head includes a mounting cylinder 26 arranged in the bracket 11, a rotating rod 25 arranged in the mounting cylinder 26, a pull rod 29 with exposed external threads at the front end and connected with the rotating rod 25, and a pull rod sleeve 30 arranged in the mounting cylinder 26 and used for rotating installation of the pull rod 29. The rotating rod 25 is connected with the output end of the hand drill body and can be driven by the hand drill body. The rotating rod 25 has a second triangular prism part and can be effectively connected with the output end of the existing hand drill body.

[0038] A second bearing 28 is arranged between the rotating rod 25 and the mounting cylinder 26. Second locking nuts 27 and connecting sleeves 31 are threadedly connected at both ends of the mounting cylinder 26. The second locking nuts 27 abut the external convex step of the rotating rod 25, and the connecting sleeves 31 are located at the outer circumferential side of the pull rod sleeve 30.

[0039] The embodiment can install the pull nut conversion head on the bracket 11. The end of the rotating rod 25 is connected with the output end of the hand drill body. When the rotating rod 25 rotates, the external threads can be screwed into the pull nut to be pulled, and then the nut is deformed by continuous rotation to fix the nut. Then the rotating rod 25 is reversed to make the rotating rod 25 separate from the nut, and one pull nut operation is completed.

[0040] Embodiment Three

[0041] As shown in Figures 7-10 The embodiment proposes a hand drill with multi-functional conversion head. Compared with the first embodiment, the embodiment includes an electric hammer conversion head which can be installed on the holding frame. The electric hammer conversion head includes an outer tube 32 arranged in the bracket 11, a main shaft 33 arranged in the outer tube 32, movable teeth 34 arranged on the main shaft 33, fixed teeth 35 arranged in the outer tube 32 and located outside the main shaft 33, and a second spring 39 arranged on the outer circumferential side of the main shaft 33 and tensioned towards the fixed teeth 35. The movable teeth 34 have first teeth arranged in a ring shape. The fixed teeth 35 have second teeth arranged in a ring shape and towards the first teeth. The first teeth and the second teeth have the same structure and opposite directions. The main shaft 33 is connected with the output end of the hand drill body and can receive the power transmitted by the hand drill body. The main shaft 33 has a third triangular prism part and can be effectively connected with the output end of the existing hand drill body.

[0042] The third bearing 36, the fourth bearing 37 and the fifth bearing 38 are mounted between the outer tube 32 and the main shaft 33, and the rotation of the main shaft 33 is stably supported by the plurality of bearings in different areas.

[0043] As shown in Figure 9 and Figure 10 The movable tooth 34 has a hexagonal hole 312, and the main shaft 33 has a hexagonal part 331 for clamping the movable tooth 34 through the hexagonal hole 312, so that the movable tooth 34 can be sleeved and clamped on the main shaft 33.

[0044] The electric hammer conversion head can be installed on the support 11, the movable tooth 34 is rotated by the rotation of the main shaft 33, the movable tooth 34 reciprocatingly contacts the fixed tooth 35, the second spring 39 is reciprocatingly compressed and elongated, so that the movable tooth 34 reciprocatingly moves.

[0045] The utility model discloses a conversion head for replacing the pull rivet, the pull nut and the electric hammer, so that the pistol drill has the functions of the pull rivet, the pull nut and the electric hammer, reduces the cost, and is convenient to carry. The conversion head is convenient to replace, shares a pistol drill main body, and shares a gripping support. The user holds the support 11 to keep the positions of the conversion heads, so that the conversion heads realize different functions under the driving of the pistol drill main body.

[0046] The utility model has been described in detail in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A pistol drill with a multi-functional adapter head, characterized in that, include: The main body of the pistol drill; The gripper includes a bracket (11) and a bottom cover (12) disposed at the bottom of the bracket (11), the bracket (11) having a through mounting channel; A multi-functional adapter head includes a riveting adapter head, a nut adapter head, and an electric hammer adapter head with a shared gripping frame. The riveting adapter head includes an outer tube (15) with a transverse slide rail set inside a bracket (11), a screw (13) rotatably set inside the outer tube (15), a screw sleeve (17) slidably set inside the outer tube (15) via the transverse slide rail and threadedly connected to the screw (13), a seed chip fixing sleeve (19) threadedly connected to the end of the screw sleeve (17), and a screw sleeve (19) located at the end of the screw sleeve (17) and the seed chip fixing sleeve (19). 9) The top sleeve (20) between the sunflower seed chips, three sunflower seed chips (21) evenly distributed in a circular shape inside the sunflower seed chip fixing sleeve (19) and in front of the top sleeve (20), the guide nozzle fixing sleeve (22) threaded to the front end of the outer sleeve (15), and the guide nozzle (23) threaded to the guide nozzle fixing sleeve (22) and in front of the sunflower seed chip (21). The guide nozzle (23) has a guide hole, the outer periphery of the screw sleeve (17) has a convex part that matches the transverse slide, and the screw (13) is connected to the output end of the pistol drill body.

2. A pistol drill with a multi-functional conversion head according to claim 1, characterized in that, A first bearing (16) is installed between the bracket (11) and the screw (13), and a first locking nut (14) is threaded to the end of the outer sleeve (15) to abut the first bearing (16) against the protruding ring of the screw (13).

3. A pistol drill with a multi-functional conversion head according to claim 2, characterized in that, The outer periphery of the screw (13) is fitted with a first spring (24) that can abut against the screw sleeve (17).

4. A pistol drill with a multi-functional conversion head according to claim 3, characterized in that, The outer sleeve (15) has strip-shaped holes (151) distributed along the length direction on its outer periphery. The screw sleeve (17) is threadedly connected to a position indicator screw (18), which moves inside the strip-shaped hole (151).

5. A pistol drill with a multi-functional conversion head according to claim 1, characterized in that, The pull nut adapter includes a mounting cylinder (26) set in the bracket (11), a rotating rod (25) rotatably set in the mounting cylinder (26), a pull rod (29) connected to the rotating rod (25) and having an exposed external thread at the front end, and a pull rod sleeve (30) set in the mounting cylinder (26) and rotatably mounted for the pull rod (29). The rotating rod (25) is connected to the output end of the pistol drill body.

6. A pistol drill with a multi-functional conversion head according to claim 5, characterized in that, A second bearing (28) is installed between the rotating rod (25) and the mounting cylinder (26). The two ends of the mounting cylinder (26) are respectively threaded with a second locking nut (27) and a connecting sleeve (31). The second locking nut (27) abuts the second bearing (28) against the outer protruding step of the rotating rod (25). The connecting sleeve (31) is located on the outer periphery of the pull rod sleeve (30).

7. A pistol drill with a multi-functional adapter head according to claim 1, characterized in that, The electric hammer converter head includes an outer tube (32) set in a bracket (11), a main shaft (33) rotatably set in the outer tube (32), a movable tooth (34) set on the main shaft (33), a fixed tooth (35) set in the outer tube (32) and located outside the main shaft (33), and a second spring (39) sleeved on the outer periphery of the main shaft (33) and tensioning the movable tooth (34) toward the fixed tooth (35). The movable tooth (34) has a first tooth distributed in a ring, and the fixed tooth (35) has a second tooth distributed in a ring and facing the first tooth. The main shaft (33) is connected to the output end of the pistol drill body.

8. A pistol drill with a multi-functional conversion head according to claim 7, characterized in that, A third bearing (36), a fourth bearing (37), and a fifth bearing (38) are installed between the outer tube (32) and the main shaft (33), and a third spring (40) is abutting between the fixed tooth (35) and the fifth bearing (38).

9. A pistol drill with a multi-functional adapter head according to claim 7, characterized in that, The movable tooth (34) has a hexagonal prism hole (312), and the main shaft (33) has a hexagonal prism portion (331) for the movable tooth (34) to be engaged through the hexagonal prism hole (312).

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