Assembly type electric drill extension bar

Abstract

The utility model discloses an assembly type electric drill extension bar, which relates to the technical field of electric drill extension bars, and comprises a chuck, a clamping handle arranged outside the chuck, and a rotating mechanism arranged between the chuck and the clamping handle, the rotating mechanism comprises a first rotating rod, a second rotating rod, a first rotating plate, a second rotating plate, a sliding groove, a connecting cylinder and a connecting groove, the connecting cylinder is arranged and matched with the first rotating plate, when the lengthening rod is carried, connection between the connecting cylinder and the connecting groove is relieved, the second rotating rod is rotated through the second rotating plate, and the clamping handle is folded; during use, the clamping handle is rotated to enable the clamping handle and the clamping head to be located on the same horizontal line, the connecting cylinder is pushed to enable the connecting cylinder to enter the connecting groove, the lengthening rod is restored, and a user can conveniently carry the lengthening rod by changing the size of the lengthening rod; and meanwhile, the size of the lengthening rod is changed, so that a user can conveniently store the lengthening rod.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drill extension rods, and particularly relates to an assembled electric drill extension rod. Background Technique

[0002] At present, an existing electric hand drill extension drill rod (such as patent number: CN202271012U) discloses an extension rod. A chuck is welded at one end of the drill rod, and a handle is provided at the other end of the drill rod. The centers of the drill rod, the chuck and the handle are on the same axis. Through the above settings, the handle of the utility model can be connected with the chuck of the electric hand drill to achieve the purpose of lengthening the drill rod of the electric hand drill. A drill bit is clamped on the chuck, and holes can be drilled in some narrow places. The utility model reduces the labor intensity, improves the construction quality, and ensures the accuracy of the drilling position.

[0003] However, in the process of implementing the above technical solution, it is found that there are at least the following problems. The extension rods have different lengths, and different lengths of extension rods can be selected according to the situation and assembled on the electric drill. If the overall length of the used extension rod is too long, it is not convenient for the user to carry. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides an assembled electric drill extension rod, which solves the technical problem that the extension rods have different lengths, and different lengths of extension rods can be selected according to the situation and assembled on the electric drill. If the overall length of the used extension rod is too long, it is not convenient for the user to carry.

[0006] (2) Technical Solutions

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0008] An assembled electric drill extension rod includes a chuck. A handle is arranged outside the chuck. A rotating mechanism is arranged between the chuck and the handle. The rotating mechanism includes a first rotating rod, a second rotating rod, a first rotating plate, a second rotating plate, a sliding groove, a connecting cylinder and a connecting groove. The first rotating rod is fixedly installed outside the chuck. The second rotating rod is fixedly installed outside the handle. The first rotating plate is rotatably connected to the outside of the first rotating rod. The second rotating plate is rotatably connected to the outside of the second rotating rod. The first rotating plate is arranged outside the second rotating plate. The sliding groove is opened on the side of the chuck close to the handle. One end of the connecting cylinder is movably connected to the inside of the sliding groove. The connecting groove is opened on the side of the handle close to the chuck. The other end of the connecting cylinder is movably connected to the inside of the connecting groove.

[0009] The inner side of the connecting cylinder is provided with a first thread, and the inner part of the connecting groove is provided with a second thread. The connecting cylinder is threadedly connected to the outside of the second thread through the first thread. A clamping groove is provided on the outside of the second rotating plate, and the first rotating plate is clamped inside the clamping groove. One end of the second rotating plate close to the clamping groove is rotatably connected with a fixing bolt, and a threaded hole is provided on the outside of the first rotating plate. The fixing bolt is threadedly connected inside the threaded hole.

[0010] Preferably: A limiting block is fixedly installed on the inner side of the connecting cylinder, and the limiting block is located at one end of the connecting cylinder away from the first thread.

[0011] Preferably: A groove is provided on the outside of the connecting cylinder, and the groove is located between the chuck and the chuck handle.

[0012] (III) Beneficial effects

[0013] 1. By providing the connecting cylinder and cooperating with the first rotating plate, when carrying the extension rod, the connection between the connecting cylinder and the connecting groove is released at this time. Then, the second rotating rod is rotated through the second rotating plate to fold the chuck handle. At this time, the size of the extension rod is reduced. When in use, rotate the chuck handle so that the chuck handle and the chuck are on the same horizontal line. Then, push the connecting cylinder so that the connecting cylinder enters the inside of the connecting groove. At this time, the extension rod returns to its original state. By changing the size of the extension rod, it is convenient for the user to carry the extension rod, and at the same time, the change in the size of the extension rod is convenient for the user to store the extension rod.

[0014] 2. By providing the clamping groove and cooperating with the fixing bolt, when the chuck handle or the chuck is damaged, rotate the fixing bolt at this time to release the connection between the fixing bolt and the threaded hole. Then, pull the first rotating plate to release the connection between the first rotating plate and the clamping groove. At this time, the connection between the chuck handle and the chuck is released. At this time, the damaged chuck handle or chuck can be replaced separately without replacing the entire extension rod, avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it in accordance with the content of the description, the following takes the preferred embodiments of the present invention and combines with the drawings to describe in detail as follows.

[0016] Figure 1 is the structural diagram of the present invention;

[0017] Figure 2 is the present invention Figure 1 the structural diagram of the chuck in;

[0018] Figure 3 is the present invention Figure 1 the structural diagram of the chuck handle in;

[0019] Figure 4 is the present inventionFigure 2 Cross-sectional structure diagram of the middle chuck;

[0020] Figure 5 For the present utility model Figure 2 Cross-sectional structure diagram of the middle handle.

[0021] Legend: 1. Chuck; 2. Handle; 3. First rotating rod; 4. Second rotating rod; 5. First rotating plate; 6. Second rotating plate; 7. Chute; 8. Connecting cylinder; 9. Connecting groove; 10. First thread; 11. Second thread; 12. Card slot; 13. Fixed bolt; 14. Thread hole; 15. Limiting block; 16. Groove. Specific implementation mode

[0022] By providing an assembled electric drill extension rod in the embodiment of the present application, the technical problem that the extension rod has different lengths and different lengths of extension rods can be selected according to the situation for assembly on the electric drill, and if the overall length of the used extension rod is too long, it is not convenient for the user to carry is effectively solved.

[0023] Embodiment

[0024] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the technical solution in the embodiment of the present application effectively solves the technical problem that the extension rod has different lengths and different lengths of extension rods can be selected according to the situation for assembly on the electric drill, and if the overall length of the used extension rod is too long, it is not convenient for the user to carry. The general idea is as follows:

[0025] In view of the problems existing in the prior art, the utility model provides an assembled electric drill extension rod. The assembled electric drill extension rod includes a chuck 1, a handle 2 is arranged outside the chuck 1, and a rotating mechanism is arranged between the chuck 1 and the handle 2. The rotating mechanism includes a first rotating rod 3, a second rotating rod 4, a first rotating plate 5, a second rotating plate 6, a chute 7, a connecting cylinder 8 and a connecting groove 9. The first rotating rod 3 is fixedly installed outside the chuck 1, the second rotating rod 4 is fixedly installed outside the handle 2, the first rotating plate 5 is rotatably connected outside the first rotating rod 3, the second rotating plate 6 is rotatably connected outside the second rotating rod 4, the first rotating plate 5 is arranged outside the second rotating plate 6, the chute 7 is opened on one side of the chuck 1 close to the handle 2, one end of the connecting cylinder 8 is movably connected inside the chute 7, the connecting groove 9 is opened on one side of the handle 2 close to the chuck 1, and the other end of the connecting cylinder 8 is movably connected inside the connecting groove 9. By setting the connecting cylinder 8 and cooperating with the first rotating plate 5, when carrying the extension rod, the connection between the connecting cylinder 8 and the connecting groove 9 is released at this time. At this time, the handle 2 is folded by rotating the second rotating rod 4 through the second rotating plate 6, and the size of the extension rod is reduced at this time. When in use, rotate the handle 2 so that the handle 2 and the chuck 1 are on the same horizontal line. At this time, push the connecting cylinder 8 so that the connecting cylinder 8 enters the inside of the connecting groove 9, and the extension rod returns to its original state. By changing the size of the extension rod, it is convenient for the user to carry the extension rod, and at the same time, the change of the size of the extension rod is convenient for the user to store the extension rod.

[0026] A first thread 10 is opened inside the connecting cylinder 8, a second thread 11 is opened inside the connecting groove 9, and the connecting cylinder 8 is threadedly connected outside the second thread 11 through the first thread 10, which is convenient for fixing the connecting cylinder 8.

[0027] A clamping groove 12 is opened outside the second rotating plate 6, and the first rotating plate 5 is clamped inside the clamping groove 12, which is convenient for the connection between the second rotating plate 6 and the first rotating plate 5. A fixing bolt 13 is rotatably connected to one end of the second rotating plate 6 close to the clamping groove 12. A threaded hole 14 is opened outside the first rotating plate 5, and the fixing bolt 13 is threadedly connected inside the threaded hole 14, which is convenient for strengthening the connection between the second rotating plate 6 and the first rotating plate 5. By setting the clamping groove 12 and cooperating with the fixing bolt 13, when the handle 2 or the chuck 1 is damaged, rotate the fixing bolt 13 at this time to release the connection between the fixing bolt 13 and the threaded hole 14. At this time, pull the first rotating plate 5 to release the connection between the first rotating plate 5 and the clamping groove 12. At this time, the connection between the handle 2 and the chuck 1 is released, and the damaged handle 2 or chuck 1 can be replaced separately at this time, without replacing the whole extension rod, avoiding waste of resources.

[0028] A limiting block 15 is fixedly installed inside the connecting cylinder 8. The limiting block 15 is located at one end of the connecting cylinder 8 away from the first thread 10 to prevent the connection between the connecting cylinder 8 and the sliding groove 7 from being released. A groove 16 is formed on the outer side of the connecting cylinder 8. The groove 16 is located between the chuck 1 and the chuck handle 2 to facilitate the rotation of the connecting cylinder 8.

[0029] Working principle:

[0030] By providing the connecting cylinder 8 and cooperating with the first rotating plate 5, when carrying the extension rod, rotate the connecting cylinder 8 at this time to release the connection between the first thread 10 and the second thread 11. At this time, the connection between the connecting cylinder 8 and the connecting groove 9 is released. Then, rotate the second rotating rod 4 through the second rotating plate 6 to fold the chuck handle 2. At this time, the size of the extension rod is reduced. By changing the size of the extension rod, it is convenient for the user to carry the extension rod. At the same time, the change in the size of the extension rod is convenient for the user to store the extension rod.

[0031] When in use, rotate the chuck handle 2 so that the chuck handle 2 and the chuck 1 are on the same horizontal line. Then, push the connecting cylinder 8 to make the connecting cylinder 8 enter the connecting groove 9. At this time, rotate the connecting cylinder 8 to connect the first thread 10 and the second thread 11. At this time, the installation of the connecting cylinder 8 is completed. At this time, the extension rod returns to its original state. At this time, the staff can assemble the extension rod to the electric drill for use.

[0032] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. The obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An assembled electric drill extension rod, comprising a chuck (1), wherein a chuck handle (2) is arranged outside the chuck (1), and is characterized in that, A rotating mechanism is provided between the chuck (1) and the chuck handle (2); The rotating mechanism includes a first rotating rod (3), a second rotating rod (4), a first rotating plate (5), a second rotating plate (6), a sliding groove (7), a connecting cylinder (8) and a connecting groove (9); The first rotating rod (3) is fixedly installed on the outside of the chuck (1), the second rotating rod (4) is fixedly installed on the outside of the chuck handle (2), the first rotating plate (5) is rotatably connected to the outside of the first rotating rod (3), the second rotating plate (6) is rotatably connected to the outside of the second rotating rod (4), the first rotating plate (5) is arranged outside the second rotating plate (6), the sliding groove (7) is opened on one side of the chuck (1) close to the chuck handle (2), one end of the connecting cylinder (8) is movably connected to the inside of the sliding groove (7), the connecting groove (9) is opened on one side of the chuck handle (2) close to the chuck (1), and the other end of the connecting cylinder (8) is movably connected to the inside of the connecting groove (9).

2. The assembled electric drill extension rod according to claim 1, characterized in that: A first thread (10) is opened on the inner side of the connecting cylinder (8), and a second thread (11) is opened inside the connecting groove (9); Among them, the connecting cylinder (8) is threadedly connected to the outside of the second thread (11) through the first thread (10).

3. The assembled electric drill extension rod according to claim 1, wherein: A clamping groove (12) is opened on the outside of the second rotating plate (6); Among them, the first rotating plate (5) is clamped inside the clamping groove (12).

4. The assembled electric drill extension rod according to claim 3, characterized in that: A fixing bolt (13) is rotatably connected to one end of the second rotating plate (6) close to the clamping groove (12), and a threaded hole (14) is opened on the outside of the first rotating plate (5); Among them, the fixing bolt (13) is threadedly connected to the inside of the threaded hole (14).

5. The assembled electric drill extension rod according to claim 1, characterized in that: A limiting block (15) is fixedly installed on the inner side of the connecting cylinder (8); Among them, the limiting block (15) is located at one end of the connecting cylinder (8) away from the first thread (10).

6. The assembled electric drill extension rod according to claim 1, wherein: A groove (16) is opened on the outside of the connecting cylinder (8); Among them, the groove (16) is located between the chuck (1) and the chuck handle (2).

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