Screwdriver conforming to ergonomics

Abstract

The utility model discloses an ergonomic screwdriver which comprises a handle, blocking plates and a screwdriver head, the front end of the handle is fixedly connected with the screwdriver head, two blocking plates are arranged between the screwdriver head and the handle and are both fixedly connected with the handle, a rear annular plate is nested at the tail end of the handle, and a front annular plate is nested at the front end of the handle. According to the screwdriver conforming to the ergonomics, a rear sleeve moves on a rear screw and drives a rear outer plate body to synchronously move, so that the rear outer plate body is actively attached to the tail end of the palm of a user, similarly, an adjusting end of a driving bevel gear is rotated, the driving bevel gear drives a driven bevel gear to rotate, the driven bevel gear drives a front threaded rod to rotate, and the front threaded rod is driven to rotate; the front sleeve moves on the front threaded rod and drives the front outer plate body to move synchronously, so that the front outer plate body gets close to the palm, the thumb is attached to a protective pad on the outer side of the front outer plate body, and the requirements of different users for holding sizes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdrivers, in particular to an ergonomic screwdriver. Background Technique

[0002] As a commonly used tool for tightening or loosening screws, in the design of existing screwdrivers, it is necessary to take into account the comfort and efficiency of use by the user, so as to reduce the fatigue and risk of injury during long-term use.

[0003] However, it is found in the actual use process that due to the differences among users, the comfortable holding methods and sizes required by different users are also different, but the existing screwdrivers cannot be adjusted and cannot meet the needs of users to adjust the holding size. Content of the Utility Model

[0004] The purpose of the utility model is to provide an ergonomic screwdriver to solve the problem that the existing screwdriver cannot be adjusted and cannot meet the needs of users to adjust the holding size as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an ergonomic screwdriver, including a handle, a blocking plate and a tool bit. The front end of the handle is fixedly connected with the tool bit. There are two blocking plates between the tool bit and the handle, and both blocking plates are fixedly connected with the handle. It also includes a rear ring plate nested at the end of the handle and a front ring plate nested at the front end of the handle;

[0006] The handle includes a housing, a middle plate, a rear screw, a rear positioning rod, a front threaded rod, a driven bevel gear, a driving bevel gear and a front positioning rod. A middle plate is fixedly installed in the middle area inside the housing. A rear screw is movably inserted on one side of the middle plate. There is an external adjustment end on the rear screw located outside the housing. A rear positioning rod is arranged below the rear screw. A front threaded rod is movably inserted on the other side of the middle plate. A driven bevel gear is fixedly connected to the outside of the front threaded rod. There is a driving bevel gear meshing with the driven bevel gear on one side of the driven bevel gear. The driving bevel gear has an adjustment end located outside the housing. A front positioning rod is arranged below the front threaded rod;

[0007] A rear sliding groove is opened on one side of the housing, and the rear ring plate moves along the rear sliding groove. A front sliding groove is opened on the other side of the housing, and the front ring plate moves along the front sliding groove.

[0008] Preferably, the rear ring plate includes a rear outer plate body, a rear connecting plate, and a rear sleeve. The rear outer plate body is fixedly connected between the rear connecting plate and the rear sleeve. The rear sleeve is penetrated by a rear screw rod and a rear positioning rod. The rear sleeve is threadedly connected with the rear screw rod and slidably connected with the rear positioning rod.

[0009] Preferably, the front ring plate includes a front outer plate body, a front connecting plate, and a front sleeve. The front outer plate body is fixedly connected between the front connecting plate and the front sleeve. The front sleeve is penetrated by a front threaded rod and a front positioning rod. The front sleeve is threadedly connected with the front threaded rod and slidably connected with the front positioning rod.

[0010] Preferably, one end of the front positioning rod is fixedly installed on the middle plate, and the other end is fixedly installed on the outer shell. One end of the rear positioning rod is fixedly installed on the middle plate, and the other end is fixedly installed on the outer shell.

[0011] Preferably, a rubber sleeve is provided on the outer side of the rear ring plate, and the rubber sleeve completely wraps the rear ring plate. An anti-slip pad is provided on the outer side of the front ring plate, and the anti-slip pad is embedded in the front ring plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] A human - ergonomic screwdriver of the present utility model can adjust the distance between the rear ring plate and the front ring plate by adjusting the positions of the rear ring plate and the front ring plate on the handle according to the size requirements and holding habits of different users' palms, so as to enable different users to adjust the holding size to meet the requirement of comfortable holding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view of the whole of the present utility model;

[0015] Figure 2 is the side view of the whole of the present utility model;

[0016] Figure 3 is the cross - sectional view of the handle of the present utility model.

[0017] In the figure: 1. Handle; 11. Outer shell; 12. Middle plate; 13. Rear screw rod; 14. Rear positioning rod; 15. Front threaded rod; 16. Driven bevel gear; 17. Driving bevel gear; 18. Front positioning rod; 2. Blocking plate; 3. Tool bit; 4. Rear ring plate; 41. Rear outer plate body; 42. Rear connecting plate; 43. Rear sleeve; 5. Rear sliding groove; 6. Front ring plate; 61. Front outer plate body; 62. Front connecting plate; 63. Front sleeve; 7. Front sliding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0019] Please refer to Figures 1-3 , an ergonomic screwdriver, including a handle 1, a blocking plate 2 and a tool bit 3. The front end of the handle 1 is fixedly connected to the tool bit 3. There are two blocking plates 2 between the tool bit 3 and the handle 1, and both blocking plates 2 are fixedly connected to the handle 1. It also includes a rear ring plate 4 nested at the end of the handle 1 and a front ring plate 6 nested at the front end of the handle 1. The handle 1 includes a housing 11, a middle plate 12, a rear screw rod 13, a rear positioning rod 14, a front threaded rod 15, a driven bevel gear 16, a driving bevel gear 17 and a front positioning rod 18. A middle plate 12 is fixedly installed in the middle area inside the housing 11. A rear screw rod 13 is movably inserted on one side of the middle plate 12. There is an external adjustment end on the rear screw rod 13 located outside the housing 11. A rear positioning rod 14 is provided below the rear screw rod 13. A front threaded rod 15 is movably inserted on the other side of the middle plate 12. A driven bevel gear 16 is fixedly connected to the outside of the front threaded rod 15. There is a driving bevel gear 17 meshing with the driven bevel gear 16 on one side of the driven bevel gear 16. The driving bevel gear 17 has an adjustment end located outside the housing 11. A front positioning rod 18 is provided below the front threaded rod 15. A rear sliding groove 5 is opened on one side of the housing 11, and the rear ring plate 4 moves along the rear sliding groove 5. A front sliding groove 7 is opened on the other side of the housing 11, and the front ring plate 6 moves along the front sliding groove 7. After the rear outer plate body 41 moves, it actively fits against the end of the user's palm. The front outer plate body 61 approaches the palm, and the thumb fits against the protective pad on the outside of the front outer plate body 61, meeting the gripping size requirements of different users and conforming to the ergonomic design.

[0020] Further, the rear ring plate 4 includes a rear outer plate body 41, a rear connecting plate 42 and a rear sleeve 43. The rear outer plate body 41 is fixedly connected to the rear sleeve 43 through the rear connecting plate 42. The rear sleeve 43 is penetrated by the rear screw rod 13 and the rear positioning rod 14. The rear sleeve 43 is threadedly connected to the rear screw rod 13 and slidably connected to the rear positioning rod 14. By rotating the external adjustment end of the rear screw rod 13, the rear screw rod 13 rotates accordingly. The rear sleeve 43 moves on the rear screw rod 13, and the rear sleeve 43 slides on the rear positioning rod 14 synchronously, driving the rear outer plate body 41 to move synchronously.

[0021] Furthermore, the front ring plate 6 includes a front outer plate body 61, a front connecting plate 62, and a front sleeve 63. The front outer plate body 61 is fixedly connected between the front connecting plate 62 and the front sleeve 63. The front sleeve 63 is penetrated by the front threaded rod 15 and the front positioning rod 18. The front sleeve 63 is threadedly connected to the front threaded rod 15 and slidably connected to the front positioning rod 18. By rotating the adjusting end of the driving bevel gear 17, the driving bevel gear 17 drives the driven bevel gear 16 to rotate. The driven bevel gear 16 drives the front threaded rod 15 to rotate. The front sleeve 63 moves on the front threaded rod 15. The front sleeve 63 synchronously moves on the front positioning rod 18 and drives the front outer plate body 61 to move synchronously.

[0022] Furthermore, one end of the front positioning rod 18 is fixedly installed on the middle plate 12, and the other end of the front positioning rod 18 is fixedly installed on the outer shell 11. One end of the rear positioning rod 14 is fixedly installed on the middle plate 12, and the other end of the rear positioning rod 14 is fixedly installed on the outer shell 11, maintaining the fixed positions of the front positioning rod 18 and the rear positioning rod 14.

[0023] Furthermore, a rubber sleeve is provided on the outer side of the rear ring plate 4, and the rubber sleeve completely wraps the rear ring plate 4. An anti-slip pad is provided on the outer side of the front ring plate 6. The user places the thumb on the anti-slip pad to achieve an anti-slip effect during exertion. The anti-slip pad is embedded in the front ring plate 6, and the anti-slip pad maintains the comfort of the palm end.

[0024] Working principle: For an ergonomic screwdriver of the present utility model, the user holds the outer shell 11 between the front outer plate body 61 and the rear outer plate body 41. According to the size of the user's palm, by rotating the adjusting end of the rear screw rod 13 outside, the rear screw rod 13 rotates accordingly. The rear sleeve 43 moves on the rear screw rod 13 and drives the rear outer plate body 41 to move synchronously, so that the rear outer plate body 41 actively fits against the end of the user's palm. Similarly, by rotating the adjusting end of the driving bevel gear 17, the driving bevel gear 17 drives the driven bevel gear 16 to rotate. The driven bevel gear 16 drives the front threaded rod 15 to rotate. The front sleeve 63 moves on the front threaded rod 15 and drives the front outer plate body 61 to move synchronously, so that the front outer plate body 61 approaches the palm and the thumb fits against the protective pad on the outer side of the front outer plate body 61, meeting the gripping size requirements of different users.

[0025] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An ergonomic screwdriver, comprising a handle (1), a blocking plate (2) and a cutter head (3), wherein the front end of the handle (1) is fixedly connected to the cutter head (3), two blocking plates (2) are provided between the cutter head (3) and the handle (1), and the two blocking plates (2) are fixedly connected to the handle (1), characterized in that: The handle (1) further comprises a rear ring plate (4) embedded in the end thereof, and a front ring plate (6) embedded in the front end thereof; The handle (1) comprises a housing (11), a center plate (12), a rear screw (13), a rear positioning rod (14), a front threaded rod (15), a driven bevel gear (16), a driving bevel gear (17) and a front positioning rod (18); the center plate (12) is fixedly mounted in the middle region inside the housing (11); the rear screw (13) is movably inserted on one side of the center plate (12); the rear screw (13) is provided with an external adjustment end located on the outside of the housing (11); A rear positioning rod (14) is provided below the rear screw rod (13); a front threaded rod (15) is movably inserted on the other side of the middle plate (12); a driven bevel gear (16) is fixedly connected to the outside of the front threaded rod (15); a driving bevel gear (17) meshing with the driven bevel gear (16) is provided on one side of the driven bevel gear (16); the driving bevel gear (17) is provided with an adjustment end located outside the housing (11); and a front positioning rod (18) is provided below the front threaded rod (15); A rear slide groove (5) is provided on one side of the housing (11), and the rear ring plate (4) moves along the rear slide groove (5); a front slide groove (7) is provided on the other side of the housing (11), and the front ring plate (6) moves along the front slide groove (7).

2. The ergonomic screwdriver according to claim 1, characterized in that: The rear ring plate (4) comprises a rear outer plate body (41), a rear connecting plate (42) and a rear sleeve (43); the rear outer plate body (41) is fixedly connected to the rear sleeve (43) via the rear connecting plate (42); the rear sleeve (43) is penetrated by the rear screw rod (13) and the rear positioning rod (14); the rear sleeve (43) is threadedly connected to the rear screw rod (13); and the rear sleeve (43) is slidably connected to the rear positioning rod (14).

3. The ergonomic screwdriver according to claim 1, characterized in that: The front ring plate (6) comprises a front outer plate body (61), a front connecting plate (62) and a front sleeve (63); the front outer plate body (61) is fixedly connected to the front sleeve (63) via the front connecting plate (62); the front sleeve (63) is penetrated by the front threaded rod (15) and the front positioning rod (18); the front sleeve (63) is threadedly connected to the front threaded rod (15); and the front sleeve (63) is slidably connected to the front positioning rod (18).

4. The ergonomic screwdriver according to claim 1, characterized in that: One end of the front positioning rod (18) is fixedly mounted on the middle plate (12), and the other end of the front positioning rod (18) is fixedly mounted on the housing (11); one end of the rear positioning rod (14) is fixedly mounted on the middle plate (12), and the other end of the rear positioning rod (14) is fixedly mounted on the housing (11).

5. The ergonomic screwdriver according to claim 1, characterized in that: A rubber sleeve is provided on the outer side of the rear ring plate (4), and the rubber sleeve completely wraps the rear ring plate (4); an anti-skid pad is provided on the outer side of the front ring plate (6), and the anti-skid pad is embedded in the front ring plate (6).

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