CN210633564U - Novel screwdriver - Google Patents

Abstract

The utility model relates to a novel screwdriver relates to car assembly and maintenance field, and the screw drops easily when having solved the screwdriver among the prior art and makes the unstable problem of nailing. The method comprises the following steps: the screwdriver body at least comprises a screwdriver rod, a screwdriver head arranged at the front end of the screwdriver rod, a screwdriver handle arranged at the rear end of the screwdriver rod and a magnet block which is embedded in the screwdriver handle and is contacted with the rear end of the screwdriver rod, and the magnet block is contacted with the rear end of the screwdriver rod to enable the screwdriver head to have magnetism and be capable of adsorbing screws; the screw clamping mechanism is arranged at one end of the cutter bar close to the cutter head and clamps and fixes the screw; the clamping driving mechanism at least comprises a tightening sleeve which is sleeved on the cutter bar and slides along the extension direction of the cutter bar and a pulley unit which supports the tightening sleeve to slide along the extension direction of the cutter bar, and the screw clamping mechanism is driven by the tightening sleeve to clamp and fix the screw; and the clamping switch structure is arranged at the rear end of the cutter bar and drives the tightening sleeve to slide along the extension direction of the cutter bar.

Description

Novel screwdriver

Technical Field

The utility model relates to an automobile assembling and maintenance technical field, in particular to novel screwdriver.

Background

A screwdriver is a tool used to turn a screw to place it, and typically has a thin wedge-shaped head that fits into a slot or recess in the head of the screw, primarily in-line (negative sign) and cross (positive sign). Hexagonal screwdrivers, including both inner and outer hexagonal screwdrivers, are also common.

In the process of installing or disassembling the injection mold of the car lamp, the conventional screwdriver is not required to hold the screw to drop easily when screwing the screw, the working efficiency is often influenced by the dropping of the screw, and even the dropping of the screw can damage the interior of the mold, so that the quality of the car lamp is influenced. In order to improve the above, a new screwdriver is needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the screw drops easily when solving the screwdriver among the prior art and makes the unstable technical problem of nailing, provides a novel screwdriver.

In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:

a novel screwdriver, comprising:

the screwdriver body at least comprises a screwdriver rod, a screwdriver head arranged at the front end of the screwdriver rod, a screwdriver handle arranged at the rear end of the screwdriver rod and a magnet block which is embedded in the screwdriver handle and is contacted with the rear end of the screwdriver rod, wherein the magnet block is contacted with the rear end of the screwdriver rod to enable the screwdriver head to have magnetism and be capable of adsorbing screws;

the screw clamping mechanism is arranged at one end, close to the cutter head, of the cutter bar, and is used for clamping and fixing the screw adsorbed on the cutter head;

the clamping driving mechanism at least comprises a tightening sleeve which is sleeved on the cutter bar and slides along the extension direction of the cutter bar and a pulley unit which supports the tightening sleeve to slide in the extension direction of the cutter bar, and the tightening sleeve slides in the extension direction of the cutter bar to drive the screw clamping mechanism to clamp and fix a screw;

and the clamping switch structure is arranged at the rear end of the cutter bar and drives the tightening sleeve to slide and move along the extension direction of the cutter bar.

Preferably, the screw clamping mechanism comprises three groups of clamping jaw members with the same structure, and the three groups of clamping jaw members with the same structure are uniformly distributed on the side surface of the front end part of the cutter bar.

Preferably, each set of gripper jaw members comprises:

the supporting bulge is arranged on the side surface of the front end part of the cutter bar;

the clamping arm comprises a supporting arm and an arc-shaped arm, one end of the supporting arm is connected to the supporting bulge, the arc-shaped arm is connected to the other end of the supporting arm, and the concave side of the arc-shaped arm is arranged towards the tool bit direction;

the front end part of the tightening sleeve is sleeved on the arc-shaped arm in the clamping arm, so that the tail end of the arc-shaped arm moves towards the tool bit direction to clamp and fix the screw.

Preferably, the pulley unit comprises three groups of pulley blocks with the same structure, and the three groups of pulley blocks with the same structure are uniformly distributed on the side wall of the tightening sleeve.

Preferably, every group the assembly pulley all includes two sets of pulley components that the structure is the same, and the same two sets of pulley components of structure set up respectively on the lateral wall of two tip around the tightening sleeve, every group the pulley component all includes:

the strip-shaped opening is formed in the side wall of the tightening sleeve;

and the roller is arranged on the inner side of the strip-shaped opening and rolls on the cutter bar.

Preferably, the clamp switch structure includes:

the support sleeve is sleeved at the rear end part of the cutter bar and fixed on the cutter handle;

one end of the connecting rod is connected to the rear end part of the tightening sleeve, and the other end of the connecting rod extends into the supporting sleeve;

the limiting opening is formed in the side wall of the supporting sleeve;

the pushing block is connected to the side surface of the connecting rod, which is opposite to the limiting opening, and extends out of the limiting opening, moves along the extending direction of the limiting opening, and the moving distance of the pushing block is limited by the limiting opening;

the first limiting bulge is arranged on the side surface of the cutter bar and is positioned on the inner side of the support sleeve;

and the second limiting bulge is connected to the side surface, opposite to the side where the pushing block is located, of the connecting rod and corresponds to the first limiting bulge, and the first limiting bulge and the second limiting bulge move in a relative sliding mode.

The utility model discloses following beneficial effect has:

the utility model discloses a novel screwdriver makes the tool bit have magnetism and can adsorb the screw through the magnet piece in the screwdriver body and the contact of cutter arbor, utilizes the sleeve pipe that tightens up among the centre gripping switch structure drive centre gripping actuating mechanism to slide on the cutter arbor simultaneously, makes gliding tightening sleeve pipe cover tight screw fixture then, makes screw fixture press from both sides the screw that adsorbs on the tool bit tightly, wherein tightens up the sleeve pipe and passes through pulley unit and slide on the cutter arbor. To sum up, this device can adsorb and press from both sides tight screw, is convenient for tighten the screw, and convenient operation, and the screw drops when avoiding the screwdriver to tighten the screw.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of a novel screwdriver of the present invention;

fig. 2 is a schematic view of a screw clamping mechanism for a novel screwdriver according to the present invention clamping a screw;

fig. 3 is a front view of a novel screwdriver of the present invention;

fig. 4 is a partially enlarged view of fig. 1 of a novel screwdriver according to the present invention;

fig. 5 is a partially enlarged view of fig. 2 of a novel screwdriver according to the present invention;

fig. 6 is a schematic distribution diagram of a screw clamping mechanism of the novel screwdriver of the present invention;

fig. 7 is a schematic distribution diagram of the pulley units of the novel screwdriver of the present invention.

The reference numerals in the figures denote:

1. a cutter bar; 2. a cutter head; 3. a knife handle; 4. a magnet block; 5. tightening the sleeve; 6. a support boss; 7. a support arm; 8. an arc-shaped arm; 9. a strip-shaped opening; 10. a roller; 11. a support sleeve; 12. a connecting rod; 13. limiting the opening; 14. a pushing block; 15. a first limit protrusion; 16. and a second limiting bulge.

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 without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, a novel screwdriver includes:

the screwdriver comprises a screwdriver body, wherein the screwdriver body at least comprises a screwdriver rod 1, a screwdriver head 2 arranged at the front end of the screwdriver rod 1, a screwdriver handle 3 arranged at the rear end of the screwdriver rod 1 and a magnet block 4 which is embedded in the screwdriver handle 3 and is contacted with the rear end of the screwdriver rod 1, and the magnet block 4 is contacted with the rear end of the screwdriver rod 1 to ensure that the screwdriver head 2 has magnetism and can adsorb screws;

the screw clamping mechanism is arranged at one end, close to the cutter head 2, of the cutter bar 1, and is used for clamping and fixing the screw adsorbed on the cutter head 2;

the clamping driving mechanism at least comprises a tightening sleeve 5 which is sleeved on the cutter bar 1 and slides along the extension direction of the cutter bar 1 and a pulley unit which supports the tightening sleeve 5 to slide in the extension direction of the cutter bar 1, and the screw clamping mechanism is driven to clamp and fix the screw by the tightening sleeve 5 sliding in the extension direction of the cutter bar 1;

and the clamping switch structure is arranged at the rear end of the cutter bar 1 and drives the tightening sleeve 5 to slide along the extension direction of the cutter bar 1.

The screw clamping mechanism comprises three groups of clamping jaw members with the same structure, and the three groups of clamping jaw members with the same structure are uniformly distributed on the side surface of the front end part of the cutter bar 1.

Each set of gripper jaw members comprises:

a support protrusion 6, the support protrusion 6 being provided on a side surface of a front end portion of the tool bar 1;

the clamping arm comprises a supporting arm 7 with one end connected to the supporting bulge 6 and an arc-shaped arm 8 connected to the other end of the supporting arm 7, and the concave side of the arc-shaped arm 8 is arranged towards the direction of the tool bit 2;

the front end of the tightening sleeve 5 is sleeved on the arc-shaped arm 8 in the clamping arm, so that the tail end of the arc-shaped arm 8 moves towards the tool bit 2 to clamp and fix the screw.

The pulley unit comprises three groups of pulley blocks with the same structure, and the three groups of pulley blocks with the same structure are uniformly distributed on the side wall of the tightening sleeve 5.

Every group assembly pulley all includes two sets of pulley components that the structure is the same, and two sets of pulley components that the structure is the same set up respectively on the lateral wall of two tip around tightening up sleeve 5, and every group pulley component all includes:

the strip-shaped opening 9 is formed in the side wall of the tightening sleeve 5;

and a roller 10, the roller 10 being installed inside the strip-shaped opening 9 and rolling-moving on the cutter bar 1.

The clamping switch structure includes:

the support sleeve 11 is sleeved at the rear end part of the cutter bar 1, and the support sleeve 11 is fixed on the cutter handle 3;

one end of the connecting rod 12 is connected to the rear end part of the tightening sleeve 5, and the other end of the connecting rod 12 extends into the supporting sleeve 11;

the limiting opening 13 is formed in the side wall of the supporting sleeve 11;

the pushing block 14 is connected to the side surface of the connecting rod 12, which is opposite to the limiting opening 13, and extends out of the limiting opening 13, the pushing block 14 moves along the extending direction of the limiting opening 13, and the moving distance of the pushing block 14 is limited through the limiting opening 13;

the first limiting bulge 15 is arranged on the side surface of the cutter bar 1 and positioned on the inner side of the support sleeve 11;

and a second limit bulge 16, wherein the second limit bulge 16 is connected to the side surface of the connecting rod 12 opposite to the side where the pushing block 14 is located and corresponds to the first limit bulge 15, and the first limit bulge 15 and the second limit bulge 16 move in a relative sliding manner.

The working principle is as follows:

firstly, the screwdriver body comprises a screwdriver rod 1, a screwdriver head 2, a screwdriver handle 3 and a magnet block 4. The front end and the rear end of the cutter bar 1 are respectively provided with the cutter bar 1 and the cutter handle 3, and the magnet block 4 is preset inside the cutter handle 3 and is in contact with the cutter bar 1. The bit 2 is made magnetic and can attract a screw by the contact of the magnet block 4 in the screwdriver body with the tool holder 1. Meanwhile, a clamping switch structure is utilized to drive a tightening sleeve 5 in a clamping driving mechanism to slide on the cutter bar 1, then the sliding tightening sleeve 5 is tightly sleeved on a screw clamping mechanism, the screw clamping mechanism clamps a screw adsorbed on the cutter head 2, and the tightening sleeve 5 slides on the cutter bar 1 through a pulley unit. Specifically, when the device is used, the knife handle 3 is held by a hand, after a screw is adsorbed on the knife head 2, and after a straight flower or a cross flower of the knife head is aligned with a groove on the screw, a finger pushes the pushing block 14 in the clamping switch structure to slide in the limiting opening 13 on the supporting sleeve 11, and pushes the tightening sleeve 5 in the clamping driving mechanism to slide through the connecting rod 12. Wherein, the tightening sleeve 5 supports the tightening sleeve 5 to move along the extension direction of the cutter bar 1 through the rolling of a roller 10 in a strip-shaped opening 9 in the pulley unit, wherein, the pulley unit comprises three groups of pulley blocks with the same structure, and the three groups of pulley blocks with the same structure are uniformly distributed on the side wall of the tightening sleeve 5. Each pulley block comprises two groups of pulley components with the same structure, and the two groups of pulley components with the same structure are respectively arranged on the side walls of the front end part and the rear end part of the tightening sleeve 5, so that the tightening sleeve 5 can be supported on the cutter bar 1 to slide in a balanced manner. The tightening sleeve 5 in the moving process is gradually sleeved on an arc-shaped arm 8 in the screw clamping mechanism. Causing the arc-shaped arm 8 to deform and move towards the screw and clamp the screw. The screw clamping mechanism comprises three groups of clamping jaw members with the same structure, and the three groups of clamping jaw members with the same structure are uniformly distributed on the side surface of the front end part of the cutter bar 1, so that the arc-shaped arms 8 in the three groups of clamping jaw members move simultaneously to finish the action of clamping and fixing screws. Wherein the support protrusions 6 function to support the support arms 7 and the support arms 7 function to support the arc-shaped arms 8. The arc arm 8 can be made of high-quality carbon steel, alloy steel, non-ferrous metal alloy stainless steel and other materials, and can generate larger elastic deformation when loaded. When the screw needs to be loosened later, the arc-shaped arm 8 is reversely moved to loosen the arc-shaped arm 8, and the arc-shaped arm 8 is restored to the original state and the screw is loosened. Wherein the connecting rod 12 pushes the tightening sleeve 5 in the clamping driving mechanism to slide, and simultaneously drives the second limiting protrusion 16 to slide relatively to the first limiting protrusion 15, and the second limiting protrusion 16 moves to the two sides of the first limiting protrusion 15, and respectively corresponds to the two ends of the pushing block 14 moving to the limiting opening 13, and simultaneously respectively corresponds to the tightening sleeve 5 to tighten the arc arm 8 and loosen the arc arm 8. Wherein the second limit bulge 16 distributes staggeredly relative to the first limit bulge 15, therefore when the second limit bulge 16 moves in a sliding manner relative to the first limit bulge 15, the first limit bulge 15 will jack up the second limit bulge 16 to make an offset, and at this time, because a gap also exists between the support sleeve 11 and the connecting rod 12, the second limit bulge 16 makes an offset to make the connecting rod 12 bend, and the gap between the support sleeve 11 and the connecting rod 12 just satisfies the offset of the connecting rod 12 bend. Meanwhile, the second limiting bulges 16 are distributed in a staggered manner relative to the first limiting bulges 15, so that the first limiting bulges 15 play a certain limiting role in the second limiting bulges 16, namely the first limiting bulges 15 just block the second limiting bulges 16, the tightening sleeve 5 cannot move easily, the tightening sleeve 5 cannot move by utilizing the resilience force of the arc-shaped arm 8, and the second limiting bulges 16 can slide relative to the first limiting bulges 15 only by applying external force through the pushing block 14 artificially. To sum up, this device can adsorb and press from both sides tight screw, is convenient for tighten the screw, and convenient operation, and the screw drops when avoiding the screwdriver to tighten the screw.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (6)

1. A novel screwdriver is characterized by comprising:

the screwdriver comprises a screwdriver body, wherein the screwdriver body at least comprises a screwdriver rod (1), a screwdriver head (2) arranged at the front end of the screwdriver rod (1), a screwdriver handle (3) arranged at the rear end of the screwdriver rod (1) and a magnet block (4) which is embedded in the screwdriver handle (3) and is in contact with the rear end of the screwdriver rod (1), and the magnet block (4) is in contact with the rear end of the screwdriver rod (1) to enable the screwdriver head (2) to have magnetism and be capable of adsorbing screws;

the screw clamping mechanism is arranged at one end, close to the cutter head (2), of the cutter bar (1), and is used for clamping and fixing the screw adsorbed on the cutter head (2);

the clamping driving mechanism at least comprises a tightening sleeve (5) which is sleeved on the cutter bar (1) and slides along the extension direction of the cutter bar (1) and a pulley unit which supports the tightening sleeve (5) to slide and move in the extension direction of the cutter bar (1), and the tightening sleeve (5) slides and moves in the extension direction of the cutter bar (1) to drive the screw clamping mechanism to clamp and fix a screw;

and the clamping switch structure is arranged at the rear end of the cutter bar (1) and drives the tightening sleeve (5) to slide and move along the extension direction of the cutter bar (1).

2. A new screwdriver according to claim 1, characterised in that said screw clamping means comprise three sets of gripper jaw members of identical structure, which are evenly distributed on the side surface of the front end of said tool bar (1).

3. The new screwdriver as recited in claim 2, wherein each set of said jaw members comprises:

the support protrusion (6) is arranged on the side surface of the front end part of the cutter bar (1);

the clamping arm comprises a supporting arm (7) with one end connected to the supporting protrusion (6) and an arc-shaped arm (8) connected to the other end of the supporting arm (7), and the concave side of the arc-shaped arm (8) is arranged towards the direction of the tool bit (2);

the front end part of the tightening sleeve (5) is sleeved on the arc-shaped arm (8) in the clamping arm, so that the tail end of the arc-shaped arm (8) moves towards the direction of the cutter head (2) to clamp and fix the screw.

4. The new screwdriver as claimed in claim 1, wherein said pulley unit comprises three sets of pulley blocks of identical structure, said three sets of pulley blocks of identical structure being arranged evenly distributed on the side wall of said tightening sleeve (5).

5. The screwdriver according to claim 4, wherein each set of pulley comprises two sets of pulley members having the same structure, the two sets of pulley members having the same structure are respectively disposed on the side walls of the front and rear ends of the tightening sleeve (5), and each set of pulley members comprises:

the strip-shaped opening (9), the strip-shaped opening (9) is arranged on the side wall of the tightening sleeve (5);

and the roller (10), the roller (10) is installed on the inner side of the strip-shaped opening (9) and rolls on the cutter bar (1).

6. The novel screwdriver of claim 1, wherein the clamp switch structure comprises:

the support sleeve (11), the said support sleeve (11) is fitted over the back end of the said arbor (1) and fixed on said shank (3);

one end of the connecting rod (12) is connected to the rear end part of the tightening sleeve (5), and the other end of the connecting rod (12) extends into the support sleeve (11);

the limiting opening (13) is formed in the side wall of the supporting sleeve (11);

the pushing block (14) is connected to the side surface of the connecting rod (12) opposite to the limiting opening (13) and extends out of the limiting opening (13), the pushing block (14) moves along the extending direction of the limiting opening (13), and the moving distance of the pushing block (14) is limited through the limiting opening (13);

the first limiting bulge (15), the first limiting bulge (15) is arranged on the side surface of the cutter bar (1) and is positioned on the inner side of the support sleeve (11);

and the second limiting bulge (16) is connected to the side surface, opposite to the side where the pushing block (14) is located, of the connecting rod (12), the second limiting bulge (16) corresponds to the first limiting bulge (15), and the first limiting bulge (15) and the second limiting bulge (16) move in a relative sliding mode.

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