CN211615415U

CN211615415U - Combined screwdriver

Info

Publication number: CN211615415U
Application number: CN201921917474.7U
Authority: CN
Inventors: 徐棉玲
Original assignee: Xi'an Huacai Dongze Education Technology Co ltd
Current assignee: Xi'an Huacai Dongze Education Technology Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-10-02
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a combination screwdriver, the electric iron comprises a handle, the handle lower extreme passes through the connecting rod to be connected with the adapter upper end, the adapter lower extreme is connected with the tool bit upper end, the connecting rod lower extreme is provided with the external screw thread, adapter upper end intermediate position is provided with the internal thread with external screw thread matched with, the adapter includes the casing, the inside intermediate position of casing is provided with the internal thread, the internal thread upper end is provided with the supporting seat, the supporting seat upper end is provided with the position sleeve, the casing is inside and be located the supporting seat outside and be provided with the cavity, the inner wall that the cavity is close to supporting seat one side is provided with a plurality of guide rails, be provided with the rack on the guide rail, rack and gear meshing, gear one and gear two meshing. Has the advantages that: and then make the fixed of tool bit more firm reliable when guaranteeing work efficiency, and then improve combination screwdriver's fastness and reliability.

Description

Combined screwdriver

Technical Field

The utility model relates to a hardware and hardware articles for use technical field particularly, relates to a combination screwdriver.

Background

The screwdriver is a tool used for screwing a screw to force the screw to be in place, is an indispensable basic tool in the installation, disassembly and maintenance of mechanical equipment and in daily life, and different types of screwdrivers, such as a straight-head screwdriver, a cross-head screwdriver, a hexagonal-head screwdriver and the like, need to be equipped for opening different screws, and the currently popular screwdriver combination tool is characterized in that: a handle, a plurality of independent screwdriver bits, change screwdriver bit as required. The front end of an existing screwdriver is usually connected with a single independent screwdriver head through a magnetic sleeve, and the screwdriver head is often loosened from the fixed position of the screwdriver head and the handle due to mechanical wear and human factors, so that the normal use of the screwdriver is influenced, and the working efficiency of users is further influenced.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem among the correlation technique, the utility model provides a combination screwdriver to overcome the above-mentioned technical problem that current correlation technique exists.

The technical scheme of the utility model is realized like this:

a combined screwdriver comprises a handle, a connecting rod, an adapter and a screwdriver head, wherein the lower end of the handle is connected with the upper end of the adapter through the connecting rod, the lower end of the adapter is connected with the upper end of the screwdriver head, an external thread is arranged at the lower end of the connecting rod, an internal thread matched with the external thread is arranged at the middle position of the upper end of the adapter, the internal thread is arranged at the middle position inside the shell, a supporting seat is arranged at the upper end of the internal thread, a positioning sleeve is arranged at the upper end of the supporting seat, a cavity is arranged inside the shell and outside the supporting seat, a plurality of guide rails are arranged on the inner wall of the cavity, which is close to one side of the supporting seat, a rack is arranged on each guide rail, the rack is meshed with a first gear, the first, the spiral groove on the other side of the two-sided toothed ring is meshed with the tooth surface of the clamping jaw, a rotating shaft is arranged in the middle of one end of the second gear, a screw hole is formed in one end, away from the second gear, of the rotating shaft, and one end, away from the rotating shaft, of the screw hole penetrates through the side wall of the shell and extends to the outside of the shell.

Furthermore, a buckle is arranged at the upper end of the inner side of the clamping jaw.

Furthermore, a magnet is arranged at the upper end of the supporting seat.

Furthermore, a chamfer seat is arranged at the bottom of the side wall of the positioning sleeve.

Furthermore, a plurality of grooves matched with the buckles are evenly formed in the outer wall of the cutter head.

Furthermore, the upper end of the outer wall of the cutter head is provided with a chamfer matched with the chamfer seat.

The utility model has the advantages that: through being provided with the adapter, thereby make the user of service can use hexagon socket head wrench to rotate the screw, thereby make screw drive gear two rotate, and then two drive two sides ring gear meshing jack catch motions of gear when drive gear one meshes the rack along the guide rail motion, and then realize the purpose of jack catch clamping fixed tool bit, and then make the user of service can carry out the change tool bit of adaptability according to concrete user demand, and then make the fixed more firm reliable of tool bit when guaranteeing work efficiency, and then improve the fastness and the reliability of combination screwdriver, and then improve the result of use of combination screwdriver.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a combination screwdriver according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an adapter of a combination screwdriver according to an embodiment of the present invention;

fig. 3 is a partial structure diagram of a tool bit of a combination screwdriver according to an embodiment of the present invention.

In the figure:

1. a handle; 2. a connecting rod; 3. an adapter; 4. a cutter head; 5. an external thread; 6. an internal thread; 7. a housing; 8. a supporting seat; 9. a positioning sleeve; 10. a cavity; 11. a guide rail; 12. a rack; 13. a rack; 14. A second gear; 15. two-sided toothed rings; 16. a claw; 17. a rotating shaft; 18. a screw hole; 19. buckling; 20. a magnet; 21. a chamfer seat; 22. a groove; 23. and (6) chamfering.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.

According to the utility model discloses an embodiment provides a combination screwdriver.

As shown in fig. 1-3, the combined screwdriver according to the embodiment of the present invention comprises a handle 1, a connecting rod 2, an adapter 3 and a screwdriver bit 4, wherein the lower end of the handle 1 is connected with the upper end of the adapter 3 through the connecting rod 2, the lower end of the adapter 3 is connected with the upper end of the screwdriver bit 4, the lower end of the connecting rod 2 is provided with an external thread 5, the middle position of the upper end of the adapter 3 is provided with an internal thread 6 matching with the external thread 5, the adapter 3 comprises a shell 7, the internal thread 6 is arranged at the middle position inside the shell 7, the support seat 8 is arranged at the upper end of the internal thread 6, the upper end of the support seat 8 is provided with a positioning sleeve 9, a cavity 10 is arranged inside the shell 7 and outside the support seat 8, the inner wall of the cavity 10 near, the guide rail 11 is provided with a rack 12, the rack 12 is meshed with a first gear 13, the first gear 13 is meshed with a second gear 14, the second gear 14 is meshed with the tooth surface on one side of a two-sided toothed ring 15, the spiral groove on the other side of the two-sided toothed ring 15 is meshed with the tooth surface of a clamping jaw 16, a rotating shaft 17 is arranged in the middle of one end of the second gear 14, the rotating shaft 17 is far away from one end of the second gear 14, a screw hole 18 is formed in one end of the second gear 14, the screw hole 18 is far away from one end of the rotating shaft 17, penetrates through the side wall of the shell 7 and.

In one embodiment, the pawl 16 is provided with a catch 19 at its inner upper end.

In one embodiment, the upper end of the support base 8 is provided with a magnet 20.

In one embodiment, the bottom of the side wall of the positioning sleeve 9 is provided with a chamfer seat 21.

In one embodiment, the outer wall of the cutting head 4 is uniformly provided with a plurality of grooves 22 which are matched with the buckles 19.

In one embodiment, the upper end of the outer wall of the cutter head 4 is provided with a chamfer 23 which is matched with the chamfer seat 21.

To sum up, with the help of the above technical scheme of the utility model, through being provided with adapter 3, thereby make the user of service can use hexagon socket wrench to rotate screw 18, thereby make screw 18 drive gear two 14 rotate, and then drive gear two 14 drive two sides ring gear 15 meshes the jack catch 16 motion when drive gear 13 meshes rack 12 along the motion of guide rail 11, and then realize the purpose that jack catch 16 presss from both sides tight fixed tool bit 4, and then make the user of service can carry out the change tool bit 4 of adaptability according to specific user demand, and then make the fixed of tool bit 4 more firm reliable when guaranteeing work efficiency, and then improve the fastness and the reliability of combination screwdriver, and then improve the result of use of combination screwdriver.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The combined screwdriver is characterized by comprising a handle (1), a connecting rod (2), an adapter (3) and a screwdriver head (4), wherein the lower end of the handle (1) is connected with the upper end of the adapter (3) through the connecting rod (2), the lower end of the adapter (3) is connected with the upper end of the screwdriver head (4), an external thread (5) is arranged at the lower end of the connecting rod (2), an internal thread (6) matched with the external thread (5) is arranged at the middle position of the upper end of the adapter (3), the adapter (3) comprises a shell (7), the internal thread (6) is arranged at the middle position inside the shell (7), a supporting seat (8) is arranged at the upper end of the internal thread (6), a positioning sleeve (9) is arranged at the upper end of the supporting seat (8), a cavity (10) is arranged inside the shell (7) and positioned outside the supporting, cavity (10) are close to the inner wall of supporting seat (8) one side is provided with a plurality of guide rails (11), be provided with rack (12) on guide rail (11), rack (12) and gear (13) meshing, gear (13) and gear (14) meshing, the flank meshing of gear two (14) and two face ring gear (15) one side, the helicla flute of two face ring gear (15) opposite side and the flank meshing of jack catch (16), gear two (14) one end intermediate position is provided with pivot (17), pivot (17) are kept away from the one end of gear two (14) is provided with screw (18), and, screw (18) are kept away from the one end of pivot (17) is run through casing (7) lateral wall and extend to casing (7) outside.

2. Combination screwdriver according to claim 1, characterized in that the jaws (16) are provided with a catch (19) at the inner upper end.

3. A combination screwdriver according to claim 1, wherein said support (8) is provided with a magnet (20) at the upper end.

4. A combination screwdriver according to claim 1, wherein the bottom of the side wall of said positioning sleeve (9) is provided with a chamfer seat (21).

5. The combination screwdriver according to claim 2, wherein the outer wall of the screwdriver head (4) is uniformly provided with a plurality of grooves (22) matched with the buckles (19).

6. A combination screwdriver according to claim 4, wherein the upper end of the outer wall of said screwdriver head (4) is provided with a chamfer (23) matching with said chamfer seat (21).