CN109048757B - Novel automatic righting screwdriver - Google Patents
Novel automatic righting screwdriver Download PDFInfo
- Publication number
- CN109048757B CN109048757B CN201811128899.XA CN201811128899A CN109048757B CN 109048757 B CN109048757 B CN 109048757B CN 201811128899 A CN201811128899 A CN 201811128899A CN 109048757 B CN109048757 B CN 109048757B
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- limiting plate
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- screwdriver
- movable rod
- rod
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- 230000007246 mechanism Effects 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 6
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
- B25B23/105—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means the gripping device being an integral part of the driving bit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The novel automatic righting screwdriver comprises a handle, a cutter bar, a screwdriver bit, a trigger cap, a movable rod and a clamping device, wherein the upper end of the cutter bar is inserted into the handle and is fixedly connected with the handle; the lower end of the movable rod is inserted into the screwdriver head in a sliding way, and the clamping device is arranged on the screwdriver head and is in sliding contact with the lower end of the movable rod; the clamping device comprises two clamping units symmetrically arranged about the axial direction of the screwdriver bit. This automatic righting screwdriver has kept the small and exquisite nimble advantage of traditional screwdriver to can press from both sides tight screw when twisting the screw, no longer need right the screw with the hand, make more convenient and more efficient when twisting the screw.
Description
Technical Field
The invention relates to a screwdriver, in particular to a novel automatic righting screwdriver.
Background
A screwdriver is a tool used to turn a screw to force it into place. Compared with an electric screwdriver, the traditional screwdriver has the characteristics of small size, flexibility and high cost performance. However, when the traditional screwdriver is used, the screw position needs to be fixed by hand, then the screw is screwed by the other hand, and for some small screws, the hand can not right the screw, the screw is very troublesome when being put on, the screw is difficult to fix, the fixed position can be deviated, time and labor are wasted, and the expected effect is not achieved.
Disclosure of Invention
The invention provides a novel automatic righting screwdriver, which ensures that people do not need to righting a screw by hand when using the screwdriver.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
A novel automatic righting screwdriver comprises a handle, a cutter bar, a screwdriver head, a trigger cap, a movable rod and a clamping device,
The upper end of the cutter bar is inserted into the cutter handle and is fixedly connected with the cutter handle, the lower end of the cutter bar is fixedly provided with a screwdriver bit, the cutter bar is provided with a central through hole for the movable bar to penetrate through along the axis direction, the movable bar is positioned in the central through hole, the upper end of the movable bar is fixedly connected with a trigger cap, the trigger cap is inserted into the cutter handle by a groove arranged at the inner concave part of the top of the cutter handle and is connected with the upper end of the movable bar, the upper end of the movable bar stretches into the groove, a spring is arranged in the groove, the spring is sleeved at the upper end of the movable bar, the lower end of the spring is connected with the groove bottom, and the upper end of the spring is connected with the trigger cap; the lower end of the movable rod is slidably inserted into a trigger groove arranged in the screwdriver head, and the clamping device is arranged on the screwdriver head and is in sliding contact with the lower end of the movable rod;
The clamping device comprises two clamping units which are symmetrically arranged along the axis direction of the screwdriver bit, each clamping unit comprises a connecting rod, a reset spring mechanism and a clamping plate, one end of the connecting rod is horizontally inserted into the screwdriver bit and extends into the trigger groove to contact with the lower end of the sliding movable rod; the other end of the connecting rod is connected with a reset spring mechanism, the reset spring mechanism is arranged on the outer wall of the screwdriver bit, and the clamping plate is connected with the reset spring mechanism through a first connecting plate.
The novel automatic righting screwdriver with the structure is characterized in that the trigger cap is pressed, the movable rod moves downwards, the lower end of the movable rod is inserted into the end parts of the two connecting rods and pushes one end of the connecting rod inserted into the screwdriver head to move outwards along with the downwards movement of the movable rod, so that the clamping plate is driven to move towards the axial direction of the screwdriver rod through the reset spring mechanism, a screw is clamped, and the screw can be fixed on an object by rotating the screwdriver; the trigger cap is loosened, the trigger device is sprung up under the action of the spring at the top end of the cutter handle, the movable rod is driven to move up, the bottom end of the movable rod is gradually separated from between the two connecting rod ends, one end of the connecting rod of the screwdriver bit is inserted to move towards the axial direction of the cutter rod, and accordingly the clamping plate is driven to move towards the direction opposite to the axial direction of the cutter rod through the reset spring mechanism, and the novel automatic righting screwdriver can be moved away from the screw.
Further, the reset spring mechanism comprises a shell, a rotating shaft, two connecting plates, a first limiting plate and a second limiting plate,
The shell is cylindrical, a cavity for placing the rotating shaft, the two connecting plates, the first limiting plate and the second limiting plate is arranged in the shell,
The two ends of the rotating shaft are respectively and vertically connected on the upper bottom surface and the lower bottom surface of the shell in a rotating way, the rotating shaft is arranged at the center of the shell,
The two connecting plates are respectively connected at two sides of the rotating shaft and symmetrically arranged about the rotating shaft, the two connecting plates are provided with reset devices,
One side of the first limiting plate and one side of the second limiting plate are respectively and vertically fixedly connected with the free end parts of the two connecting plates and are symmetrically arranged about the axis of the rotating shaft, the first limiting plate and the second limiting plate are arc-shaped plates, the radian of the first limiting plate is the same as that of the outer shell,
Through grooves are formed on the cavity wall of the shell at positions corresponding to the first limiting plate and the second limiting plate,
The outer surface of the first limiting plate is connected with the other end of the connecting rod, the first limiting plate can rotate in the shell under the drive of the other end of the connecting rod, the first limiting plate and the second limiting plate are 90-degree arc plates, the connecting part of the other end of the connecting rod on the first limiting plate is the middle position of the first limiting plate,
The surface of the second limiting plate is connected with the first connecting plate.
Further, the reset device comprises at least one reset spring which is respectively arranged on the two connecting plates in the opposite directions of the first limiting plate and the second limiting plate, one ends of the reset springs are respectively fixed on the connecting plates, and the other ends of the reset springs are fixedly connected on the shell.
Further, the clamping plate comprises an arc-shaped plate, a sector-shaped plate and a transition connecting plate, the arc-shaped plate is arranged above the sector-shaped plate, the arc-shaped plate and the sector-shaped plate are connected through the transition connecting plate, the top of the arc-shaped plate is connected with the first connecting plate, and the concave surface of the arc-shaped plate faces the screwdriver head; the concave surface of the sector plate faces the screwdriver bit.
When the screw is clamped, the concave surfaces of the two sector plates of the two clamping units are attached to the screw to clamp the screw.
Further, the lower end of the movable rod is processed into a cone shape,
One end of the connecting rod is connected with an extension rod, one end of the extension rod is connected with the connecting rod, the other end of the extension rod is processed into a round shape, and the other end of the extension rod is horizontally inserted into the screwdriver bit and extends into the trigger groove to contact with the conical lower end of the sliding movable rod. The lower extreme of movable rod processes into the toper, and the other end of extension rod processes into circularly, can reduce the resistance that the movable rod bottom promotes the connecting rod and outwards moves, makes this automatic righting screwdriver work more smooth and easy.
Further, the top of the handle is provided with a top cover, the upper end of the movable rod penetrates through the handle and is fixedly connected with a trigger cap, the trigger cap is inserted into the top cover by a groove formed in the concave of the top cover and is connected with the upper end of the movable rod, the upper end of the movable rod stretches into the groove, a spring is arranged in the groove and is sleeved at the upper end of the movable rod, the lower end of the spring is connected with the bottom of the groove, and the upper end of the spring is connected with the trigger cap. The top cover is arranged, so that the spring can be conveniently replaced when the spring is damaged.
Compared with the prior art, the invention has the beneficial effects that: this automatic righting screwdriver has kept the small and exquisite nimble advantage of traditional screwdriver to can press from both sides tight screw when twisting the screw, no longer need with righting the screw, make more convenient and have more efficiency when twisting the screw.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a novel self-righting screwdriver according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of the position of a spring in a novel self-righting screwdriver according to an embodiment of the present invention.
Fig. 3 is a schematic view of a screwdriver bit and clamping device in a novel self-righting screwdriver in accordance with an embodiment of the present invention.
Fig. 4 is a cross-sectional view of fig. 3.
Fig. 5 is a schematic diagram of another view of fig. 3.
Fig. 6 is an internal schematic view of a return spring mechanism (with a bottom surface of the housing hidden) in a novel self-righting screwdriver according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a joint between a first connecting plate and a return spring mechanism in a novel self-righting screwdriver according to an embodiment of the present invention.
Detailed Description
For a better understanding of the present invention, the following examples are further illustrated, but are not limited to the following examples.
As shown in fig. 1 to 7, a novel self-righting screwdriver comprises a handle 1, a top cover 10, a cutter bar 2, a screwdriver head 3, a trigger cap 6, a movable rod 4 and a clamping device,
As shown in fig. 1,2 and 4, a top cover 10 is arranged at the top end of the knife handle 1, the upper end of the knife bar 2 is inserted into the knife handle 1 and is fixedly connected, a screwdriver bit 3 is fixedly arranged at the lower end of the knife bar 2, a central through hole 201 for the movable bar 4 to penetrate is arranged at the knife bar 2 along the axial direction, the movable bar 4 is positioned in the central through hole 201, the upper end of the movable bar 4 penetrates through the knife handle 1 and is fixedly connected with a trigger cap 6, the trigger cap 6 is inserted into the top cover 10 through a groove 101 arranged at the concave part at the top of the top cover 10 and is connected with the upper end of the movable bar 4, the upper end of the movable bar 4 stretches into the groove 101, a spring 11 is arranged in the groove, the spring 11 is sleeved at the upper end of the movable bar 4, the lower end of the spring 11 is connected with the groove 101 bottom, and the upper end of the spring 11 is connected with the trigger cap 6; the lower end of the movable rod 4 is tapered and is slidably inserted into a trigger groove 301 provided in the screwdriver head 3, and a clamping device is provided on the screwdriver head 3 and is in sliding contact with the lower end of the movable rod 4; when the trigger cap 6 is pressed, the movable rod 4 connected with the trigger cap 6 moves downwards, the trigger cap 6 extrudes the spring 11, the spring 11 is compressed, when the screw is fixed without clamping the screw, the trigger cap 6 is released, the spring 11 stretches, the trigger cap 6 is pushed to return to the position before pressing, and the movable rod 4 is driven to move upwards;
As shown in fig. 3, 4, 5 and 7, the clamping device of the present embodiment includes two clamping units symmetrically disposed about the axial direction of the screwdriver bit 3, each of the two clamping units includes a connecting rod 5, a return spring mechanism and a clamping plate 9, one end of the connecting rod 5 is connected with an extension bar 12, one end of the extension bar 12 is connected with the connecting rod 5, the other end of the extension bar 12 is processed into a circle, and the other end of the extension bar 12 is horizontally inserted into the screwdriver bit 3 and extends into the trigger groove 301 to contact with the tapered lower end of the sliding movable bar 4; the other end of the connecting rod 5 is connected with a return spring mechanism 8, the return spring mechanism 8 is arranged on the outer wall of the screwdriver bit 3, and the clamping plate 9 is connected with the return spring mechanism 8 through the first connecting plate 7.
As shown in fig. 6, the return spring mechanism of the present embodiment includes a housing 801, a rotating shaft 802, two connecting plates 803, a first limiting plate 804 and a second limiting plate 805, the housing 801 is cylindrical, a cavity for placing the rotating shaft 802, the two connecting plates 803, the first limiting plate 804 and the second limiting plate 805 is provided in the housing 801, the rotating shaft 802 is disposed at the center of the housing 801, two ends of the rotating shaft 802 are respectively vertically and rotatably connected to the upper and lower bottom surfaces of the housing 801, two ends of the rotating shaft 802 are disposed on bearing seats, and the bearing seats are fixed on the bottom surface of the housing 801; the two connecting plates 803 are respectively connected to two sides of the rotating shaft 802 and symmetrically arranged about the rotating shaft 802, reset devices are arranged on the two connecting plates, one side of the first limiting plate 804 and one side of the second limiting plate 805 are respectively and vertically fixedly connected to free ends of the two connecting plates 803 and symmetrically arranged about the axis of the rotating shaft 802, the first limiting plate 804 and the second limiting plate 805 are arc-shaped plates, the radian of the first limiting plate is identical to that of the outer shell 801, through grooves 807 are formed in positions, corresponding to the first limiting plate 804 and the second limiting plate 805, on the cavity wall of the outer shell 801, of the first limiting plate 804, the reset devices comprise at least one reset spring 806 which is respectively arranged on the two connecting plates 803 in the opposite direction to the first limiting plate 804 and the second limiting plate 805, the reset springs 806 on each connecting plate 803 are arranged in parallel, one end of each reset spring 806 is fixed on the connecting plate 803, the other end of each reset spring is fixedly connected to the outer shell 801, the rotating shaft 802 can rotate, and the first limiting plate 804 and the second limiting plate 805 can return to the original state when the first limiting plate 804 and the second limiting plate 805 move in opposite directions;
The other end of the connecting rod 5 passes through the through groove 807 and is connected with the outer surface of the first limiting plate 804, and the first limiting plate 804 can rotate in the shell 801 under the drive of the other end of the connecting rod 5, the first limiting plate 804 and the second limiting plate 805 of the embodiment are arc-shaped plates with a central angle of 90 degrees, and the connection position of the first limiting plate 804 and the connecting rod 5 is the central position of the first limiting plate 804, namely the central angle is 45 degrees;
The outer surface of the second limiting plate 805 is connected to the first connecting plate 7.
The clamping plate 9 of this embodiment includes an arc 901, a sector 902 and a transition connection plate 903, the arc 901 is disposed above the sector 902, the arc 901 and the sector 902 are connected by the transition connection plate 903, the top of the arc 901 is connected with the first connection plate 7, and the concave surface of the arc 901 faces the screwdriver head 3, and the concave surface of the sector 902 faces the screwdriver head 3. When the screw is clamped, the concave surfaces of the two sector plates of the clamping unit are attached to the screw to clamp the screw.
When the screw driver is used, a screw is placed between the clamping plates 9, the screw is aligned with the screwdriver head 3, the trigger cap 6 is pressed, as shown in fig. 3, an arrow in the drawing indicates the forced movement direction, the movable rod 4 moves downwards to push the extension rod 12 inserted into the screwdriver head 3 to move outwards, the other end of the connecting rod 5 drives the first limiting plate 804 in the return spring mechanism 8 to move towards a position far away from the axial direction of the screwdriver rod 2, namely, the direction A in fig. 6, and the second limiting plate 805 moves towards the axial direction of the screwdriver rod 2 under the action of the first limiting plate 804 and the rotating shaft 802, namely, the direction A is opposite, so that the sector plates 902 in the clamping plates 9 are driven to move towards the axial direction of the screwdriver head 3, the distance between the two sector plates 902 is reduced, the concave surfaces in the two sector plates 902 are attached to the clamping screw driver, and the screwdriver can rotate at the moment to tighten the screw. In order to save effort and quickly tighten the screw, the trigger cap 6 is loosened when most of the screw is tightened in the object without deflection, and then the screw can be quickly and completely screwed in the object. After the trigger cap 6 is loosened, the spring 11 stretches to push the trigger cap 6 to restore to the original position, the movable rod 4 is driven to move upwards, the lower end of the movable rod 4 gradually leaves between two circular end parts of the two extension rods 12, the extension rods 12 move towards the axis direction of the screwdriver head 3, the connecting rod 5 is driven to move towards the screwdriver head 3, the distance between the two fan-shaped plates 902 is increased, and the self-righting screwdriver can be moved away from the screw.
Claims (1)
1. Novel automatic righting screwdriver, its characterized in that: comprises a knife handle (1), a knife bar (2), a screwdriver head (3), a trigger cap (6), a movable bar (4) and a clamping device,
The upper end of the cutter bar (2) is inserted into the cutter handle (1) and is fixedly connected, the screw driver head (3) is fixedly arranged at the lower end of the cutter bar (2), a central through hole (201) for the movable rod (4) to penetrate is formed in the cutter bar (2) along the axis direction, the movable rod (4) is positioned in the central through hole (201), the upper end of the movable rod (4) is fixedly connected with the trigger cap (6), the trigger cap (6) is inserted into the cutter handle (1) through a groove (101) formed in the concave part of the top of the cutter handle (1) and is connected with the upper end of the movable rod (4), the upper end of the movable rod (4) stretches into the groove (101), a spring (11) is arranged in the groove (101), the spring (11) is sleeved at the upper end of the movable rod (4), the lower end of the spring (11) is connected with the groove bottom of the groove (101), and the upper end of the spring (11) is connected with the trigger cap (6). The lower end of the movable rod (4) is slidably inserted into a trigger groove (301) arranged in the screwdriver head (3), and the clamping device is arranged on the screwdriver head (3) and is in sliding contact with the lower end of the movable rod (4);
The clamping device comprises two clamping units which are symmetrically arranged along the axial direction of the screwdriver head (3), wherein each clamping unit comprises a connecting rod (5), a reset spring mechanism (8) and a clamping plate (9), one end of the connecting rod (5) is horizontally inserted into the screwdriver head (3) and extends into the triggering groove (301) to be contacted with the lower end of the sliding movable rod (4); the other end of the connecting rod (5) is connected with a return spring mechanism (8), the return spring mechanism (8) is arranged on the outer wall of the screwdriver head (3), and the clamping plate (9) is connected with the return spring mechanism (8) through the first connecting plate (7);
The return spring mechanism (8) comprises a shell (801), a rotating shaft (802), two connecting plates (803), a first limiting plate (804) and a second limiting plate (805),
The shell (801) is cylindrical, a cavity for placing the rotating shaft (802), the two connecting plates (803), the first limiting plate (804) and the second limiting plate (805) is arranged in the shell (801),
Two ends of the rotating shaft (802) are respectively and vertically connected on the upper bottom surface and the lower bottom surface of the shell (801) in a rotating way, the rotating shaft (802) is arranged at the center of the shell (801),
Two connecting plates (803) are respectively connected to two sides of the rotating shaft (802) and symmetrically arranged about the rotating shaft (802), reset devices are arranged on the two connecting plates,
One side of the first limiting plate (804) and one side of the second limiting plate (805) are respectively and vertically fixedly connected to the free ends of the two connecting plates (803) and are symmetrically arranged about the axis of the rotating shaft (802), the first limiting plate (804) and the second limiting plate (805) are arc-shaped plates, the radian of the arc-shaped plates is the same as that of the shell (801),
Through grooves (807) are formed on the cavity wall of the shell (801) at positions corresponding to the first limiting plate (804) and the second limiting plate (805),
The outer surface of the first limiting plate (804) is connected with the other end of the connecting rod (5), the first limiting plate (804) can rotate in the shell (801) under the drive of the other end of the connecting rod (5), the first limiting plate (804) and the second limiting plate (805) are 90-degree arc-shaped plates, the connecting part of the other end of the connecting rod (5) on the first limiting plate (804) is the middle position of the first limiting plate (804),
The outer surface of the second limit plate (805) is connected with the first connecting plate (7);
The first limiting plate (804) and the second limiting plate (805) are arc-shaped plates with a central angle of 90 degrees, and the connection part between the first limiting plate (804) and the connecting rod (5) is the central position of the first limiting plate (804), namely the central angle is 45 degrees;
The reset device comprises at least one reset spring (806) which is arranged on the two connecting plates (803) in the opposite directions of the first limiting plate (804) and the second limiting plate (805), the reset springs (806) on each connecting plate (803) are arranged in parallel, one end of each reset spring (806) is fixed on the connecting plate (803), and the other end of each reset spring is fixedly connected on the shell (801);
The clamping plate (9) comprises an arc-shaped plate (901), a sector-shaped plate (902) and a transition connecting plate (903),
The arc-shaped plate (901) is arranged above the sector-shaped plate (902), the arc-shaped plate (901) is connected with the sector-shaped plate (902) through the transition connecting plate (903), the top of the arc-shaped plate (901) is connected with the first connecting plate (7), and the concave surface of the arc-shaped plate (901) faces the screwdriver head (3);
The concave surface of the sector plate (902) faces the screwdriver bit (3);
the lower end of the movable rod (4) is processed into a cone shape,
One end of the connecting rod (5) is connected with an extension rod (12), one end of the extension rod (12) is connected with the connecting rod (5), the other end of the extension rod (12) is processed into a round shape, and the other end of the extension rod (12) is horizontally inserted into the screwdriver bit (3) and extends into the trigger groove (301) to contact with the conical lower end of the sliding movable rod (4);
the top of handle of a knife (1) is provided with a top cap (10), and the upper end of movable rod (4) passes handle of a knife (1) and links firmly trigger cap (6), and trigger cap (6) inserts top cap (10) and connect the upper end of movable rod (4) by recess (101) that top indent set up in top cap (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128899.XA CN109048757B (en) | 2018-09-27 | 2018-09-27 | Novel automatic righting screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128899.XA CN109048757B (en) | 2018-09-27 | 2018-09-27 | Novel automatic righting screwdriver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109048757A CN109048757A (en) | 2018-12-21 |
| CN109048757B true CN109048757B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811128899.XA Active CN109048757B (en) | 2018-09-27 | 2018-09-27 | Novel automatic righting screwdriver |
Country Status (1)
| Country | Link |
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| CN (1) | CN109048757B (en) |
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| CN112276843B (en) * | 2019-09-28 | 2022-05-03 | 东莞劲佳精密部件有限公司 | Improved screwdriver and improved screw |
| CN112842497A (en) * | 2021-01-26 | 2021-05-28 | 南京夏日炎科技有限公司 | Spinal reduction nail locking device |
| CN113182833B (en) * | 2021-05-17 | 2022-07-19 | 佛山市百粤达自动化科技有限公司 | Screw locking machine |
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| Publication number | Publication date |
|---|---|
| CN109048757A (en) | 2018-12-21 |
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