CN213034503U

CN213034503U - Manual quick screwdriver

Info

Publication number: CN213034503U
Application number: CN202021523239.4U
Authority: CN
Inventors: 余泽毅; 向军; 朱超; 陈娟
Original assignee: State Grid Corp of China SGCC; Chengkou Power Supply Co of State Grid Chongqing Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Chengkou Power Supply Co of State Grid Chongqing Electric Power Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-04-23
Anticipated expiration: 2030-07-28

Abstract

The utility model provides a manual quick screwdriver, which comprises a screwdriver handle, wherein the screwdriver handle is a hollow screwdriver handle, a cylinder is arranged inside the hollow screwdriver handle, a spring is fixedly arranged at the top of the cylinder, the top end of the spring is fixedly connected with the top in the hollow screwdriver handle, the bottom end of the spring is fixedly connected with the top of the cylinder, the cylinder is rotatably connected with a screw rod, and the bottom end of the screw rod is fixedly connected with a screwdriver head; the screw rod is controlled to turn through the direction adjusting mechanism, the direction adjusting mechanism comprises a forward clamping ring and a reverse clamping ring which are sleeved on the screw rod, and the forward clamping ring and the reverse clamping ring are both located in the hollow knife handle. The utility model provides an electric screwdriver not allow to use under the electrified condition, and when using general manual screwdriver to go on screw from top to bottom, need artifical clockwise or anticlockwise rotation screwdriver, the lower problem of efficiency has produced the effect that can screw up fast or dismantle the screw under the electrified condition.

Description

Manual quick screwdriver

Technical Field

The utility model relates to a screwdriver technical field especially relates to a manual quick screwdriver.

Background

An electric screwdriver, also known as a screwdriver or an electric screwdriver, is an electric tool for screwing and unscrewing screws. The electric tool is provided with a mechanism for adjusting and limiting torque, is mainly used for assembly lines, and is one of necessary tools for most production enterprises. In the replacement process of the daily electric energy meter, the electric screwdriver is frequently used, and has the advantages of labor saving and rapidness, but the electric screwdriver is not allowed to be used under the electrified condition, and when a common manual screwdriver is used for loading and unloading screws, the screwdriver needs to be manually rotated clockwise or anticlockwise, so that the efficiency is low.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a manual quick screwdriver, its electric screwdriver who has solved to exist among the prior art does not allow to use under the electrified condition, and when using general manual screwdriver to go on screw from top to bottom, needs artifical clockwise or anticlockwise rotation screwdriver, and efficiency is lower.

According to the embodiment of the utility model, the manual quick screwdriver comprises a screwdriver handle, wherein the screwdriver handle is a hollow screwdriver handle, a cylinder is arranged inside the hollow screwdriver handle, a spring is fixedly arranged at the top of the cylinder, the top end of the spring is fixedly connected with the top in the hollow screwdriver handle, the bottom end of the spring is fixedly connected with the top of the cylinder, the cylinder is rotatably connected with a screw rod, and the bottom end of the screw rod is fixedly connected with a screwdriver head; the screw rod is controlled to turn by the direction adjusting mechanism, the direction adjusting mechanism comprises a forward snap ring and a reverse snap ring which are sleeved on the screw rod, the forward snap ring and the reverse snap ring are both positioned in the hollow knife handle, a limiting block for preventing the forward snap ring and the reverse snap ring from vertically moving is arranged between the forward snap ring and the reverse snap ring, a gear piece for preventing the snap ring arranged above the limiting block from upwards moving is fixedly connected in the hollow knife handle, a first sliding block is arranged on the inner wall of the forward snap ring, a second sliding block is arranged on the inner wall of the reverse snap ring, and a forward spiral groove convenient for the first sliding block to slide and a reverse spiral groove convenient for the second sliding block to slide are formed in the screw rod; the limiting mechanism is used for limiting the rotation of the forward clamping ring or the reverse clamping ring.

The technical principle and the beneficial effects of the utility model are that: after the screwdriver head and the screw are aligned and fixed, the steering mechanism is adjusted to conveniently control the steering of the screw rod and further control the steering of the screwdriver head to tighten or disassemble the screw according to the requirements of users, then the hollow knife handle is moved downwards, the cylinder and the hollow knife handle move downwards together, the screw rod moves upwards relative to the cylinder, when the limiting mechanism limits the reverse snap ring to rotate, the forward spiral groove on the screw rod rotates in cooperation with the first sliding block on the inner wall of the forward snap ring in the upward moving process of the screw rod, thereby driving the screw rod to rotate in the positive direction, when the limiting mechanism limits the rotation of the positive clamp ring, the screw rod moves upwards, the reverse spiral groove on the screw rod is matched with the second sliding block on the inner wall of the reverse snap ring to rotate, and then drive the screw rod and rotate in reverse, simple swift, effectively promoted efficiency, the spring then provides the required power that the screw rod resets.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of the structure a in fig. 1.

Fig. 3 is a schematic diagram of an embodiment of the present invention.

Fig. 4 is a schematic view illustrating the cooperation between the fixture block and the forward and backward snap rings.

Fig. 5 is a schematic diagram of a state where two sliding blocks are located at the joint of the spiral groove.

In the above drawings: 1. a hollow shank; 2. a cylinder; 3. a spring; 4. a screw; 5. a limiting block; 6. a positive snap ring; 7. a reverse snap ring; 8. a slider slot; 9. a slider; 10. a clamping block; 11. a stop plate; 12. a limiting groove; 13. a screwdriver bit; 14. a plastic material layer; 15. a stopper block; 16. a first slider; 17. a second slider; 18. a forward spiral groove; 19. and (4) reverse spiral grooves.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1, an embodiment of the present invention provides a manual quick screwdriver, including a screwdriver handle, the screwdriver handle is a hollow screwdriver handle 1, a cylinder 2 is arranged inside the hollow screwdriver handle 1, specifically, the cylinder 2 is slidably connected with an inner wall of the hollow screwdriver handle 1, a spring 3 is fixedly installed at a top of the cylinder 2, specifically, a top end of the spring 3 is fixedly connected with an inner top of the hollow screwdriver handle 1, a bottom end of the spring 3 is fixedly connected with a top of the cylinder 2, the cylinder 2 is rotatably connected with a screw rod 4, specifically, a circular hole is formed in a bottom center of the cylinder 2, and the screw rod 4 is rotatably connected in the circular hole; the embodiment of the utility model also comprises a direction adjusting mechanism, the screw rod 4 is controlled to turn by the direction adjusting mechanism, the direction adjusting mechanism comprises a forward snap ring 6 and a reverse snap ring 7 which are sleeved on the screw rod 4, the forward snap ring 6 and the reverse snap ring 7 are both positioned in the hollow handle 1, a limiting block 5 which prevents the forward snap ring 6 and the reverse snap ring 7 from vertically moving is arranged between the forward snap ring 6 and the reverse snap ring 7, a blocking part which prevents the snap ring arranged above the limiting block 5 from moving upwards is fixedly connected in the hollow handle 1, concretely, as shown in figure 2, the limiting blocks 5 are two and are symmetrically distributed at the left side and the right side of the screw rod 4, the limiting block 5 is fixedly connected with the inner wall of the hollow handle 1, the forward snap ring 6 is positioned above the limiting block 5 in the embodiment, the blocking part is selected from a blocking plate 11 in the embodiment, the blocking plate 11 is provided with a through, the screw rod 4 penetrates through the through hole to be sleeved with the cylinder 2, the top of the forward clamping ring 6 is attached to the bottom of the stop plate 11, the bottom of the forward clamping ring 6 is attached to the top of the limiting block 5, the top of the reverse clamping ring 7 is attached to the bottom of the limiting block 5, and the bottom of the reverse clamping ring 7 is attached to the inner wall of the bottom of the hollow tool handle 1.

As shown in fig. 2, the inner wall of the forward snap ring 6 is provided with a first sliding block 16, specifically, the inner wall of the forward snap ring 6 is spot-welded with the first sliding block 16, the inner wall of the reverse snap ring 7 is provided with a second sliding block 17, specifically, the inner wall of the reverse snap ring 7 is spot-welded with the second sliding block 17, the screw rod 4 is provided with a forward spiral groove 18 facilitating the sliding of the first sliding block 16 and a reverse spiral groove 19 facilitating the sliding of the second sliding block 17, specifically, as shown in fig. 5, the forward spiral groove 18 is left-handed, the reverse spiral groove 19 is right-handed, the first sliding block 16 is slidably connected in the forward spiral groove 18 along the rotation direction of the forward spiral groove 18, the length of the first sliding block 16 is greater than the width of the reverse spiral groove 19, the second sliding block 17 is slidably connected in the reverse spiral groove 19 along the rotation direction of the reverse spiral groove 19, and the length of the second slide block 17 is greater than the width of the forward spiral groove 18.

As shown in fig. 3, a screwdriver head 13 is fixedly connected to a bottom end of the screw rod 4, a layer of insulating material is disposed on a surface of the hollow tool shank 1, specifically, a plastic material layer 14 is used as the insulating material layer in this embodiment, a stopper 15 for preventing the screw rod 4 from completely retracting into the cylinder 2 is fixedly connected to the screw rod 4, specifically, the stopper 15 is fixedly connected to a lower end portion of the screw rod 4, and a layer of plastic insulating material is disposed on the stopper 15.

The utility model provides a manual quick screwdriver, still includes and is used for restricting forward snap ring 6 or reverse snap ring 7 pivoted stop gear, as shown in figure 4, stop gear includes a plurality of spacing recess 12, a plurality of spacing recess 12 circumference distribute on the lateral wall of forward snap ring 6 and reverse snap ring 7, stop gear still includes slider 9, slider groove 8 has been seted up on the hollow handle of a knife 1, slider 9 sliding connection is in slider groove 8, fixedly connected with fixture block 10 on the slider 9, fixture block 10 is used for pegging graft with spacing recess 12, the length of fixture block 10 is unanimous with the length of stopper 5, and when slider 9 was in slider groove 8 position placed in the middle, fixture block 10 was in stopper 5 completely. Because the forward snap ring 6 is located above the limiting block 5 in this embodiment, when the adjusting slide block 9 moves up in the slide groove 8, the slide block 9 drives the clamping block 10 to move up, the clamping block 10 is inserted into one limiting groove 12 on the forward snap ring 6, when in use, the screwdriver bit 13 is aligned with a screw to be disassembled or screwed and is tightly abutted, then the hollow hilt 1 is manually moved down, the cylinder 2 moves down together with the hollow hilt 1, the screw rod 4 moves up relative to the cylinder 2, the forward snap ring 6 is limited to rotate at the moment, during the moving up process of the screw rod 4, the forward spiral groove 18 on the screw rod 4 is matched with the first sliding block 16 on the inner wall of the forward snap ring 6 to rotate, and then the screw rod 4 rotates forward, otherwise, the slide block 9 moves down in the slide groove 8, the slide block 9 drives the clamping block 10 to move down, the clamping block 10 is inserted into one limiting, at the moment, the reverse snap ring 7 is limited to rotate, the hollow tool handle 1 is manually moved downwards, the cylinder 2 and the hollow tool handle 1 move downwards together, and in the process that the screw rod 4 moves upwards, the reverse spiral groove 19 on the screw rod 4 and the second sliding block 17 on the inner wall of the reverse snap ring 7 rotate in a matched mode, so that the screw rod 4 rotates reversely; the spring 3 can provide power for the screw 4 to extend out of the cylinder 2 for resetting.

When the screwdriver is used, a worker can wear the insulating gloves, the screwdriver bit 13 is aligned with a screw and tightly abutted to the screw manually, then the hollow shank 1 is held, the adjusting slide block 9 moves upwards in the slide block groove 8, the hollow shank 1 is manually pressed downwards to be attached to the stop block 15, the screw 4 drives the screwdriver bit 13 to rotate, the screwdriver bit 13 drives the screw to rotate and tighten, the top of the screw 4 is contacted with the inner top of the cylinder 2, then one hand continues to press the hollow shank 1, the other hand holds the stop block 15, the lower end of the hollow shank 1 is enabled to be attached to the stop block 15, then the screwdriver bit 13 is moved away from the screw, the stop block 15 is loosened to reset the screw 4, the screw is prevented from being driven to reset and rotate when the screw 4 is reset, the spring 3 drives the cylinder 2 to move downwards when the screw is loosened, and the cylinder 2 drives the screw 4. If the screw cannot be screwed or dismounted at one time, the steps of aligning and abutting the screwdriver head 13 and the screw, holding the hollow cutter handle 1, manually pressing the hollow cutter handle 1 downwards to be attached to the stop block 15, then continuously pressing the hollow cutter handle 1 by one hand, holding the stop block 15 by the other hand to enable the lower end of the hollow cutter handle 1 to be attached to the stop block 15, then removing the screwdriver head 13 from the screw, and resetting the screw rod 4 until the screw is screwed or dismounted are repeated.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a manual quick screwdriver, includes the handle of a knife, its characterized in that: the screwdriver comprises a hollow screwdriver handle, a cylinder, a spring, a screw rod and a screwdriver head, wherein the screwdriver handle is a hollow screwdriver handle, the cylinder is arranged inside the hollow screwdriver handle, the top of the cylinder is fixedly provided with the spring, the top end of the spring is fixedly connected with the inner top of the hollow screwdriver handle, the bottom end of the spring is fixedly connected with the top of the cylinder, the cylinder is rotatably connected with the screw rod, and the bottom end of the screw rod is fixedly connected with; the screw rod is controlled to turn by the direction adjusting mechanism, the direction adjusting mechanism comprises a forward snap ring and a reverse snap ring which are sleeved on the screw rod, the forward snap ring and the reverse snap ring are both positioned in the hollow knife handle, a limiting block for preventing the forward snap ring and the reverse snap ring from vertically moving is arranged between the forward snap ring and the reverse snap ring, a gear piece for preventing the snap ring arranged above the limiting block from upwards moving is fixedly connected in the hollow knife handle, a first sliding block is arranged on the inner wall of the forward snap ring, a second sliding block is arranged on the inner wall of the reverse snap ring, and a forward spiral groove convenient for the first sliding block to slide and a reverse spiral groove convenient for the second sliding block to slide are formed in the screw rod; the limiting mechanism is used for limiting the rotation of the forward clamping ring or the reverse clamping ring.

2. A hand-operated quick screwdriver as recited in claim 1 further comprising: the limiting mechanism comprises a plurality of limiting grooves, the limiting grooves are circumferentially distributed on the outer side wall of the forward clamping ring and the outer side wall of the reverse clamping ring, the limiting mechanism further comprises a sliding block, a sliding block groove is formed in the hollow tool handle, the sliding block is connected in the sliding block groove in a sliding mode, a clamping block is fixedly connected to the sliding block, and the clamping block is used for being connected with the limiting grooves in an inserting mode.

3. A hand-operated quick screwdriver as recited in claim 1 further comprising: and the surface of the hollow cutter handle is provided with an insulating material layer.

4. A hand-operated quick screwdriver as recited in claim 1 further comprising: and a stop block for preventing the screw rod from completely retracting into the cylinder is fixedly connected to the screw rod.