Adjustable screwdriver

Abstract

The utility model discloses an adjustable screwdriver which comprises a handle, a screwdriver rod and an adjusting device, a first mounting hole and a containing cavity are formed in the handle, and the first mounting hole is communicated with the containing cavity; the cutter bar is provided with a first end and a second end, the first end of the cutter bar is exposed through the first mounting hole, the second end of the cutter bar is inserted into the containing cavity through the first mounting hole, and the cutter bar can slide and stretch in the first mounting hole and the containing cavity; the adjusting device is connected with the handle, the adjusting device can move between a locking position and an unlocking position, and when the adjusting device is located at the locking position, the cutter bar is tightly pressed and locked to the inner wall of the first mounting hole through the adjusting device, so that the cutter bar cannot slide, stretch and retract in the first mounting hole and the containing cavity; when the adjusting device is located at the unlocking position, the adjusting device relieves pressing and locking of the cutter bar so that the cutter bar can slide and stretch out and draw back in the first installation hole and the containing cavity, through the arrangement of the structure, the length of the cutter bar can be adjusted according to needs, and different work requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to screwdriver technical field, especially involve a adjustable screwdriver. BACKGROUND

[0002] At present, screwdriver as a kind of commonly used hardware tool, widely used in various assembly, maintenance and so on. The existing screwdriver usually includes handle and blade bar, blade bar is equipped with bit, and the size of bit needs to be selected according to the specification of screw when using. However, the length of the blade bar of the existing screwdriver is fixed, cannot be adjusted, which will bring many inconveniences when operating in some narrow space or deep hole. At the same time, the blade bar and handle of traditional screwdriver are usually integrated structure, and the space occupied is larger when carrying and storing.

[0003] In addition, although the existing detachable screwdriver can replace bit, but there is the problem that locking mechanism is not stable enough and easy to fall off, which affects the use experience. In addition, the magnetic force of some screwdrivers using magnetic locking will gradually weaken after long-term use, and the bit cannot be firmly locked. INVENTION CONTENTS

[0004] In view of the above-mentioned problems in the prior art, the utility model provides a adjustable screwdriver, which realizes the adjustable length of the blade bar by setting the accommodating cavity in the handle, slidingly inserting the blade bar into the accommodating cavity and pressing or loosening the blade bar by the adjusting device, so as to meet the needs of different use scenarios.

[0005] The utility model solves the technical scheme that adopts:

[0006] A adjustable screwdriver, comprising:

[0007] Handle, the handle is equipped with first mounting hole and accommodating cavity, the first mounting hole is communicated with the accommodating cavity;

[0008] Blade bar, the blade bar has first end and second end, the first end of the blade bar is exposed outside through the first mounting hole, the second end of the blade bar is inserted into the accommodating cavity through the first mounting hole, and the blade bar can slide in and out in the first mounting hole and the accommodating cavity;

[0009] Adjusting device, the adjusting device is connected with the handle, and the adjusting device can move between locking position and unlocking position, when the adjusting device is located at the locking position, the adjusting device tightens and locks the blade bar to the inner wall of the first mounting hole, so that the blade bar cannot slide in and out in the first mounting hole and the accommodating cavity;When the adjusting device is located at the unlocking position, the adjusting device releases the blade bar from the tight locking, so that the blade bar can slide in and out in the first mounting hole and the accommodating cavity.

[0010] Further, the handle is further provided with an adjusting hole, the adjusting hole is connected with the first mounting hole, the adjusting device is connected with the adjusting hole, and the adjusting device is movable in the adjusting hole to a locked position or an unlocked position.

[0011] Further, the adjusting device is a quick screw, the adjusting hole is provided with an internal thread, the quick screw comprises a hand nut and a stud, the stud is provided with an external thread, the hand nut is movable under the action of an external force to drive the external thread of the stud to rotate along the internal thread, so that the stud is movable in the adjusting hole to the locked position or the unlocked position; when the stud is located at the locked position, the stud presses the blade rod against the inner wall of the first mounting hole, so that the blade rod is not slidable in the first mounting hole and the accommodating cavity; when the stud is located at the unlocked position, the stud releases the locking of the blade rod, so that the blade rod is slidable in the first mounting hole and the accommodating cavity.

[0012] Further, the blade rod is provided with an axial limiting groove, when the stud moves into the limiting groove, the stud can stop the blade rod in the accommodating cavity.

[0013] Further, the limiting groove comprises a first limiting portion, a locking surface and a second limiting portion, the first limiting portion is located at one end of the limiting groove, the second limiting portion is located at the other end of the limiting groove, the locking surface is located at the bottom surface of the limiting groove, and the locking surface is located between the first limiting portion and the second limiting portion; the blade rod is slidable between a maximum contraction position and a minimum contraction position, when the stud is located at the locked position, the stud abuts against the locking surface, so that the stud presses the blade rod against the inner wall of the first mounting hole, so that the blade rod is not slidable in the first mounting hole and the accommodating cavity; when the stud is located at the unlocked position, the stud releases the locking of the blade rod, so that the stud is separated from the locking surface, and the blade rod is slidable in the first mounting hole and the accommodating cavity; when the blade rod slides to the maximum contraction position, the first limiting portion abuts against the stud to stop the blade rod at the maximum contraction position; when the blade rod slides to the minimum contraction position, the second limiting portion abuts against the stud to stop the blade rod at the minimum contraction position.

[0014] Further, the first mounting hole is arranged at the end wall of the handle, and the adjusting hole is arranged at the side wall of the handle.

[0015] Further, the handle further comprises a second mounting hole opposite to the first mounting hole, the second mounting hole being in communication with the accommodating cavity, when the adjusting device is moved to be disengaged from the limiting slot, the cutter bar can be pulled out of the accommodating cavity through the second mounting hole.

[0016] Further, a cover is further included, the cover being detachably coupled to the second mounting hole.

[0017] Further, a side wall of the cover has an annular groove, and an elastic locking member is further included, the elastic locking member being sleeved on the annular groove, an inner wall of the second mounting hole being pressed against the elastic locking member, and the elastic locking member being pressed against an inner wall of the annular groove, so that the elastic locking member is pressed against and locked in the second mounting hole; a first anti-slip part in the form of a protrusion is arranged on the cover.

[0018] Further, a second anti-slip part in the form of a protrusion is further arranged on a surface of the handle; a third anti-slip part in the form of a protrusion is further arranged on the hand screw cap; the second anti-slip part comprises a first anti-slip pattern, a second anti-slip pattern, a third anti-slip pattern, a fourth anti-slip pattern, and a fifth anti-slip pattern, the first anti-slip pattern, the second anti-slip pattern, the third anti-slip pattern, the fourth anti-slip pattern, and the fifth anti-slip pattern being arranged in sequence and at intervals in a direction from a first end of the handle to a second end of the handle; a first gripping area in the form of a smooth surface is arranged between the first anti-slip pattern and the second anti-slip pattern, and a plurality of air holes are arranged around the first gripping area.

[0019] Further, a width of the adjusting hole is the same as a width of the first mounting hole, and a length of the adjusting hole is smaller than a length of the first mounting hole.

[0020] Further, a width of the accommodating cavity is greater than a width of the first mounting hole, and a width of the second mounting hole is greater than the width of the first mounting hole; a length of the accommodating cavity is greater than a length of the first mounting hole.

[0021] Further, a width of the accommodating cavity is greater than a width of the first mounting hole, and a width of the second mounting hole is greater than the width of the first mounting hole; a length of the accommodating cavity is greater than a length of the first mounting hole.

[0022] Further, a second gripping area in the form of a smooth surface is arranged between the third anti-slip pattern and the second anti-slip pattern, a third gripping area in the form of a smooth surface is arranged between the fourth anti-slip pattern and the third anti-slip pattern, and a fourth gripping area in the form of a smooth surface is arranged between the fifth anti-slip pattern and the fourth anti-slip pattern.

[0023] Further, the first gripping area is arranged in the form of an arc.

[0024] Further, the first anti-skid pattern and the second anti-skid pattern each comprise a plurality of V-shaped first anti-skid protrusions, a plurality of rhombic second anti-skid protrusions and a plurality of V-shaped third anti-skid protrusions, the first anti-skid protrusions being connected to the upper side of the second anti-skid protrusions, and the third anti-skid protrusions being connected to the lower side of the second anti-skid protrusions.

[0025] Further, the third anti-skid part, the third anti-skid pattern, the fourth anti-skid pattern and the fifth anti-skid pattern each comprise a plurality of rhombic fourth anti-skid protrusions.

[0026] Further, the first anti-skid part comprises a plurality of rectangular fifth anti-skid protrusions.

[0027] Further, the upper surface of the handle is further provided with an identification slot for installing a specification display identification.

[0028] Further, the first end of the knife rod is further provided with a knife head.

[0029] Further, the knife head is a polygonal knife head, and an arc-shaped transition is arranged between the knife head and the knife rod, and the knife head is connected with the knife rod through the arc-shaped transition.

[0030] The screwdriver provided by the utility model has the advantages that through the above structure, the adjusting device can be switched between the locked position and the unlocked position during use, the locking or releasing of the knife rod is realized, the user can adjust the length of the knife rod according to actual needs, and the use requirements of different working environments are met. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a whole structure schematic view of the adjustable screwdriver of the utility model;

[0032] Figure 2 is an angle explosion structure schematic view of the adjustable screwdriver of the utility model;

[0033] Figure 3 is another angle explosion structure schematic view of the adjustable screwdriver of the utility model;

[0034] Figure 4 is an enlarged view of A of the adjustable screwdriver of the utility model;

[0035] Figure 5 is an enlarged view of B of the adjustable screwdriver of the utility model;

[0036] Figure 6 is an enlarged view of C of the adjustable screwdriver of the utility model;

[0037] Figure 7This is a top view of an adjustable screwdriver according to this utility model;

[0038] Figure 8 yes Figure 7 A cross-sectional view of the locked state;

[0039] Figure 9 yes Figure 7 A cross-sectional view of the unlocked state.

[0040] Reference numerals: 1-Handle; 11-First mounting hole; 12-Receiving cavity; 13-Adjustment hole; 131-Internal thread; 14-Second mounting hole; 15-Second anti-slip part; 151-First anti-slip texture; 152-Second anti-slip texture; 153-Third anti-slip texture; 154-Fourth anti-slip texture; 155-Fifth anti-slip texture; 156-First grip area; 1561-Ventilation hole; 157-Second grip area; 158-Third grip area; 159-Fourth grip area; 161-First anti-slip protrusion; 162-Second anti-slip protrusion; 163 - Third anti-slip protrusion; 164- Fourth anti-slip protrusion; 165- Fifth anti-slip protrusion; 17- Marking groove; 2- Blade bar; 21- First end; 22- Second end; 23- Limiting groove; 231- First limiting part; 232- Locking surface; 233- Second limiting part; 24- Blade head; 241- Arc transition; 3- Adjusting device; 31- Quick-tight screw; 311- Hand-tightening nut; 3111- Third anti-slip part; 312- Stud; 3121- External thread; 4- Cover; 41- Annular groove; 42- Elastic locking element; 43- First anti-slip part. Detailed Implementation

[0041] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0042] Please see Figures 1-9 This utility model provides an adjustable screwdriver, comprising:

[0043] Handle 1, the handle 1 is provided with a first mounting hole 11 and a receiving cavity 12, the first mounting hole 11 and the receiving cavity 12 are connected;

[0044] The tool holder 2 has a first end 21 and a second end 22. The first end 21 of the tool holder 2 is exposed through the first mounting hole 11, and the second end 22 of the tool holder 2 is inserted into the receiving cavity through the first mounting hole 11. The tool holder 2 can slide and extend within the first mounting hole 11 and the receiving cavity 12.

[0045] Adjustment device 3 is connected to handle 1 and can move between a locked position and an unlocked position. When adjustment device 3 is in the locked position, it presses and locks the tool bar 2 against the inner wall of the first mounting hole 11 so that the tool bar 2 cannot slide or extend within the first mounting hole 11 and the receiving cavity 12. When adjustment device 3 is in the unlocked position, it releases the pressing and locking of the tool bar 2 so that the tool bar 2 can slide or extend within the first mounting hole 11 and the receiving cavity 12.

[0046] With the above-described structure, including: a handle 1, which has a first mounting hole 11 and a receiving cavity 12, the first mounting hole 11 and the receiving cavity 12 communicating; the receiving cavity 12 is used to accommodate a tool holder 2, wherein the length of the handle 1 is in the range of 20-200mm, the diameter of the handle 1 is in the range of 5-100mm, and the tool holder 2 has a first end 21 and a second end 22, the first end 21 of the tool holder 2 being exposed through the first mounting hole 11, and the second end 22 of the tool holder 2 being inserted into the receiving cavity through the first mounting hole 11, and the tool holder 2 being able to slide and extend within the first mounting hole 11 and the receiving cavity 12; wherein the length of the tool holder 2 ... tool holder 2 is in the range of 20-200mm, the diameter of the tool holder 2 is in the range of 20-200mm, the diameter of the tool holder 2 is in the range of 20-200mm, the diameter of the tool holder 2 is in the range of 20-200mm, the diameter of the tool holder 2 is in the range of 20-200mm, the diameter of the tool holder 2 is in the range of 20-200mm, the diameter of the tool holder 2 The screwdriver has a diameter range of 1-30mm for the handle 2 and a diameter range of 20-300mm for the first mounting hole 11. An adjusting device 3 is connected to the handle 1 and can move between a locked and unlocked position. When the adjusting device 3 is in the locked position, it presses the handle 2 tightly against the inner wall of the first mounting hole 11, preventing it from sliding or extending within the hole and cavity 12. When the adjusting device 3 is in the unlocked position, it releases the pressure on the handle 2, allowing it to slide and extend within the hole and cavity 12. This allows the adjusting device 3 to lock or release the handle 2 by moving between the locked and unlocked positions, enabling the handle 2 to be adjusted to different lengths according to different usage environments, further improving the screwdriver's practicality.

[0047] In this embodiment, the handle 1 is further provided with an adjustment hole 13, which is connected to the first mounting hole 11. The adjustment device 3 is connected to the adjustment hole 13, and the adjustment device 3 can move within the adjustment hole 13 to a locked position or an unlocked position. Through the above structural arrangement, the adjustment device 3, by connecting to the adjustment hole 13 and the adjustment hole 13 to the first mounting hole 11, can move between the locked and unlocked positions to lock or release the tool holder 2, thereby allowing the tool holder 2 to be adjusted to different lengths according to different usage environments.

[0048] In this embodiment, the adjusting device 3 is a quick-tightening screw 31. The adjusting hole 13 is provided with an internal thread 131. The quick-tightening screw 31 includes a hand-tightening nut 311 and a stud 312. The stud 312 has an external thread 3121. Under the action of external force, the hand-tightening nut 311 can drive the external thread 3121 of the stud 312 to rotate along the internal thread 131, so that the stud 312 can move to the locked position or the unlocked position in the adjusting hole 13. When the stud 312 is in the locked position, the stud 312 presses the tool bar 2 against the inner wall of the first mounting hole 11, so that the tool bar 2 cannot slide or extend within the first mounting hole 11 and the receiving cavity 12. When the stud 312 is in the unlocked position, the stud 312 releases the lock on the tool bar 2, so that the tool bar 2 can slide or extend within the first mounting hole 11 and the receiving cavity 12. With the above structure, the diameter of the hand-tightening nut 311 is 1-100mm, the diameter of the stud 312 is 1-20mm, and the length of the stud 312 is 1-100mm. In use, the user can rotate the hand-tightening nut 311 to drive the external thread 3121 of the stud 312 to rotate along the internal thread 131, so that the stud 312 can move to the locked or unlocked position in the adjustment hole 13. This allows the user to quickly adjust different lengths according to their needs without tools.

[0049] In this embodiment, the tool holder 2 is provided with a limiting groove 23 extending axially. When the stud 312 moves into the limiting groove 23, the stud 312 can stop the tool holder 2 in the receiving cavity 12. With the above structure, the limiting groove 23 ensures that when the stud 312 is adjusted into the limiting groove 23, the tool holder 2 can be stopped in the receiving cavity 12, thereby preventing the tool holder 2 from leaving the receiving cavity 12 during user use.

[0050] In this embodiment, the limiting groove 23 includes a first limiting part 231, a locking surface 232, and a second limiting part 233. The first limiting part 231 is located at one end of the limiting groove 23, and the second limiting part 233 is located at the other end of the limiting groove 23. The locking surface 232 is located on the bottom surface of the limiting groove 23 and is located between the first limiting part 231 and the second limiting part 233. The tool bar 2 can slide between the maximum retraction position and the minimum retraction position. When the stud 312 is in the locked position, the stud 312 abuts against the locking surface 232, so that the stud 312 presses the tool bar 2 into the first mounting hole 11. The inner wall is designed to prevent the tool bar 2 from sliding and extending within the first mounting hole 11 and the receiving cavity 12. When the stud 312 is in the unlocked position, the stud 312 releases the locking of the tool bar 2, allowing the stud 312 to disengage from the locking surface 232, and the tool bar 2 can slide and extend within the first mounting hole 11 and the receiving cavity 12. When the tool bar 2 slides to the maximum retracted position, the first limiting part 231 abuts against the stud 312 to stop the tool bar 2 at the maximum retracted position. When the tool bar 2 slides to the minimum retracted position, the second limiting part 233 abuts against the stud 312 to stop the tool bar 2 at the minimum retracted position. With the above structure, the first limiting part 231 is located at one end of the limiting groove 23, and the second limiting part 233 is located at the other end of the limiting groove 23. The length of the locking surface 232 ranges from 1 to 200 mm. The locking surface 232 is located on the bottom surface of the limiting groove 23 and is located between the first limiting part 231 and the second limiting part 233. When the stud 312 is adjusted to the locked position, the stud 312 is slightly tighter than the locking surface 232, so that the stud 312 presses the tool bar 2 against the inner wall of the first mounting hole 11 and prevents it from sliding or extending. When the stud 312 disengages from the locking surface 232, the tool bar... 2. The tool shank can slide and extend within the first mounting hole 11 and the receiving cavity 12. The maximum contraction position is when the tool shank 2 is contracted to the position where the second end 22 of the tool shank 2 is inserted into the receiving cavity 12 to the maximum extent. At this time, the exposed part of the tool shank 2 is the shortest. The first limiting part 231 abuts against the stud 312 to prevent the tool shank 2 from sliding further into the receiving cavity 12. The minimum contraction position is when the tool shank 2 is contracted to the position where the second end 22 of the tool shank 2 is inserted into the receiving cavity 12 to the minimum extent. At this time, the exposed part of the tool shank 2 is the longest. The second limiting part 233 abuts against the stud 312 to prevent the tool shank 2 from sliding further out of the receiving cavity 12.

[0051] In this embodiment, the first mounting hole 11 is located on the end wall of the handle 1, and the adjustment hole 13 is located on the side wall of the handle 1. This structural arrangement allows the user to operate the adjustment device 3 located on the side wall using their thumb and forefinger while holding the handle 1, thus maintaining grip stability and improving ease of operation.

[0052] In this embodiment, the handle 1 also includes a second mounting hole 14 opposite to the first mounting hole 11. The second mounting hole 14 communicates with the receiving cavity 12. When the adjusting device 3 moves to the disengagement position from the limiting groove 23, the tool bar 2 can be disengaged from the receiving cavity 12 through the second mounting hole 14. With the above structure, when it is necessary to replace the tool bar 2 or perform cleaning and maintenance, the user can adjust the adjusting device 3 to the fully unlocked position to disengage it from the limiting groove 23, and then remove the tool bar 2 through the second mounting hole 14, thus improving the maintainability and practicality of the product.

[0053] In this embodiment, a cover 4 is also included, which detachably covers the second mounting hole 14. With the above structure, the diameter of the cover 4 is in the range of 1-100mm. The cover 4 can seal the second mounting hole 14 when the tool bar 2 does not need to be removed, preventing dust from entering the receiving cavity 12, and at the same time making the overall handle 1 more aesthetically pleasing.

[0054] In this embodiment, the side wall of the cover 4 has an annular groove 41 and also includes an elastic locking member 42. The elastic locking member 42 is sleeved in the annular groove 41, and the inner wall of the second mounting hole 14 is pressed against the elastic locking member 42. The elastic locking member 42 is pressed against the inner wall of the annular groove 41, so that the elastic locking member 42 presses and locks the cover 4 into the second mounting hole 14. The cover 4 is provided with a raised first anti-slip part 43. With the above structure, the diameter of the elastic locking member 42 is in the range of 1-100mm and must be adapted to the diameter of the cover 4. The elastic locking member 42 can make the cover 4 tightly connected to the second mounting hole 14, preventing the cover 4 from loosening and falling off during use. At the same time, the first anti-slip part 43 makes it easy for the user to grip the cover 4, making it convenient for installation and disassembly.

[0055] In this embodiment, the surface of the handle 1 is also provided with a raised second anti-slip portion 15; the hand-tightening nut 311 has a raised third anti-slip portion 3111; the second anti-slip portion 15 includes a raised first anti-slip texture 151, a second anti-slip texture 152, a third anti-slip texture 153, a fourth anti-slip texture 154 and a fifth anti-slip texture 155, the first anti-slip texture 151, the second anti-slip texture 152, the third anti-slip texture 153, the fourth anti-slip texture 154 and the fifth anti-slip texture 155 are arranged in sequence at intervals from the first end of the handle 1 to the second end of the handle 1; there is a smooth first gripping area 156 between the first anti-slip texture 151 and the second anti-slip texture 152, and the surface of the first gripping area 156 is surrounded by a plurality of ventilation holes 1561. With the above-described structure, the second anti-slip portion 15 on the surface of the handle 1 includes raised first anti-slip texture 151, second anti-slip texture 152, third anti-slip texture 153, fourth anti-slip texture 154, and fifth anti-slip texture 155, which improves the user's grip comfort and stability. Especially when the hands are sweaty, this design can effectively prevent slipping. Furthermore, by having a smooth first grip area 156 between the first anti-slip texture 151 and the second anti-slip texture 152, and by arranging multiple ventilation holes 1561 around the first grip area 156, wherein the diameter of the ventilation holes 1561 ranges from 1 to 50 mm, it helps to evaporate hand sweat and further improves grip comfort. The third anti-slip portion 3111 is set on the hand-tightening nut 311, which is convenient for the user to rotate and adjust, and can be operated stably even in humid environments.

[0056] In this embodiment, the width of the adjusting hole 13 is the same as the width of the first mounting hole 11, and the length of the adjusting hole 13 is less than the length of the first mounting hole 11. This structural arrangement ensures the radial matching between the adjusting hole 13 and the first mounting hole 11, allowing the stud 312 to accurately press the tool bar 2 through the adjusting hole 13. Simultaneously, the shorter length of the adjusting hole 13 increases the overall strength of the handle 1, avoiding structural weakness caused by a long hole.

[0057] In this embodiment, the width of the receiving cavity 12 is greater than the width of the first mounting hole 11, and the width of the second mounting hole 14 is greater than the width of the first mounting hole 11; the length of the receiving cavity 12 is greater than the length of the first mounting hole 11. With the above structural design, the size of the receiving cavity 12 is larger than the first mounting hole 11, ensuring that the tool holder 2 can smoothly slide into the receiving cavity 12 with sufficient room for movement; the width of the second mounting hole 14 is greater than the first mounting hole 11, facilitating the installation, removal, and replacement of the tool holder 2, improving the convenience of product maintenance. At the same time, the larger space design of the receiving cavity 12 also provides sufficient travel range for the extension and retraction of the tool holder 2.

[0058] In this embodiment, a smooth second grip area 157 exists between the third anti-slip texture 153 and the second anti-slip texture 152; a smooth third grip area 158 exists between the fourth anti-slip texture 154 and the third anti-slip texture 153; and a smooth fourth grip area 159 exists between the fifth anti-slip texture 155 and the fourth anti-slip texture 154. With the above structural arrangement, the diameters of the second grip area 157, the third grip area 158, and the fourth grip area 159 are all in the range of 0.3mm-10mm. The second anti-slip texture 152 is located in the middle part of the handle 1 and is the main force point when the user grips it. The second grip area 157 serves as a smooth transition area connecting the second anti-slip texture 152 and the third anti-slip texture 153, providing a comfortable support surface for the user's palm. The third anti-slip texture 153 is located near the tail of the handle 1, enhancing grip. For stability; the third grip area 158 is located between the third anti-slip texture 153 and the fourth anti-slip texture 154, forming the middle section of the trapezoidal grip structure; the fourth anti-slip texture 154 continues to extend towards the tail of the handle 1, providing anti-slip support for the base of the palm; the fourth grip area 159 connects the fourth anti-slip texture 154 and the fifth anti-slip texture 155, completing the tail end of the overall trapezoidal grip structure; the fifth anti-slip texture 155 is located at the very end of the handle 1, ensuring that the handle 1 will not slip out of the hand when the maximum torque is applied.

[0059] In this embodiment, the first grip area 156 is arranged in an arc shape. This arc design is more ergonomic, better conforming to the curve of the user's palm, reducing hand fatigue during use, and improving comfort during extended use.

[0060] In this embodiment, both the first anti-slip texture 151 and the second anti-slip texture 152 include a plurality of V-shaped first anti-slip protrusions 161, a plurality of rhomboid second anti-slip protrusions 162, and a plurality of V-shaped third anti-slip protrusions 163. The first anti-slip protrusions 161 are connected to the upper side of the second anti-slip protrusions 162, and the third anti-slip protrusions 163 are connected to the lower side of the second anti-slip protrusions 162. Through the above-described structure, the combination design of protrusions of various shapes greatly enhances the anti-slip effect. The rhomboid second anti-slip protrusions 162 provide omnidirectional friction, while the V-shaped first anti-slip protrusions 161 and third anti-slip protrusions 163 located at both ends respectively particularly enhance the axial gripping force, which is especially effective during rotational operations. This design can maintain good gripping performance even in wet and slippery environments.

[0061] In this embodiment, the third anti-slip portion 3111, the third anti-slip texture 153, the fourth anti-slip texture 154, and the fifth anti-slip texture 155 all include several diamond-shaped fourth anti-slip protrusions 164. Through the above structural arrangement, the third anti-slip portion 3111 is mounted on the hand-tightening nut 311, facilitating user rotation and adjustment. Furthermore, the third anti-slip texture 153, the fourth anti-slip texture 154, and the fifth anti-slip texture 155 near the tail of the handle 1 employ the same diamond-shaped fourth anti-slip protrusions 164 design, forming a unified grip anti-slip texture. These diamond-shaped anti-slip protrusions cooperate with the grip area at the tail of the handle, providing reliable anti-slip support when the user needs to apply greater torque.

[0062] In this embodiment, the first anti-slip portion 43 includes a plurality of rectangular fifth anti-slip protrusions 165. Through the above-described structure, the rectangular fifth anti-slip protrusions 165 on the cover 4 provide obvious tactile feedback, allowing the user to perceive the position of the cover by touch without looking, facilitating the disassembly and assembly of the cover 4. The rectangular design also increases the contact area with the fingers, enhancing the stability of the operation.

[0063] In this embodiment, the upper surface of the handle 1 is also provided with an identification groove 17, which is used for installing specification display labels. With the above structure, users can quickly identify the screwdriver model and applicable range through the specification labels in the identification groove 17, avoiding reduced work efficiency or screw damage caused by selecting the wrong tool. At the same time, the recessed identification groove design protects the labels from falling off or wearing out, extending the product's service life.

[0064] In this embodiment, the first end of the screwdriver shank 2 is also provided with a screwdriver head 24. With the above structure, the screwdriver head 24 serves as the working part of the screwdriver. The size of the screwdriver head 24 ranges from 0.05 to 20 mm, thereby enabling it to work with screws of various sizes to tighten or loosen them.

[0065] In this embodiment, the cutter head 24 is a polygonal cutter head, and an arc-shaped transition 241 is provided between the cutter head 24 and the cutter shank 2. The cutter head 24 is connected to the cutter shank 2 through the arc-shaped transition 241. Through the above-mentioned structural design, the polygonal cutter head design increases the contact area with the screw, improves the torque transmission efficiency, and reduces the risk of stripping; the arc-shaped transition 241 design effectively reduces stress concentration, improves the structural strength at the connection between the cutter head 24 and the cutter shank 2, and extends the product service life.

[0066] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An adjustable screwdriver, characterized in that, include: A handle (1) is provided with a first mounting hole (11) and a receiving cavity (12), wherein the first mounting hole (11) is connected to the receiving cavity (12); The tool holder (2) has a first end (21) and a second end (22). The first end (21) of the tool holder (2) is exposed through the first mounting hole (11), and the second end (22) of the tool holder (2) is inserted into the receiving cavity through the first mounting hole (11). The tool holder (2) can slide and extend within the first mounting hole (11) and the receiving cavity (12). An adjusting device (3) is connected to the handle (1) and can move between a locked position and an unlocked position. When the adjusting device (3) is in the locked position, the adjusting device (3) presses and locks the blade (2) against the inner wall of the first mounting hole (11) so that the blade (2) cannot slide or extend within the first mounting hole (11) and the receiving cavity (12). When the adjusting device (3) is in the unlocked position, the adjusting device (3) releases the pressing and locking of the blade (2) so that the blade (2) can slide or extend within the first mounting hole (11) and the receiving cavity (12).

2. The adjustable screwdriver according to claim 1, characterized in that, The handle (1) is also provided with an adjustment hole (13), which is connected to the first mounting hole (11). The adjustment device (3) is connected to the adjustment hole (13), and the adjustment device (3) can move to the locked position or the unlocked position within the adjustment hole (13).

3. The adjustable screwdriver according to claim 2, characterized in that, The adjusting device (3) is a quick-tight screw (31), and the adjusting hole (13) is provided with an internal thread (131). The quick-tight screw (31) includes a hand-tightening nut (311) and a stud (312). The stud (312) has an external thread (3121). Under the action of external force, the hand-tightening nut (311) can drive the external thread (3121) of the stud (312) to rotate along the internal thread (131), so that the stud (312) can move within the adjusting hole (13) to the locked position or the unlocked position. When the stud (312) is in the locked position, the stud (312) presses the tool bar (2) against the inner wall of the first mounting hole (11) so that the tool bar (2) cannot slide or extend within the first mounting hole (11) and the receiving cavity (12); when the stud (312) is in the unlocked position, the stud (312) releases the locking of the tool bar (2) so that the tool bar (2) can slide or extend within the first mounting hole (11) and the receiving cavity (12).

4. The adjustable screwdriver according to claim 3, characterized in that, The tool bar (2) is provided with a limiting groove (23) extending along the axial direction. When the stud (312) moves into the limiting groove (23), the stud (312) can stop the tool bar (2) in the receiving cavity (12).

5. The adjustable screwdriver according to claim 4, characterized in that, The limiting groove (23) includes a first limiting part (231), a locking surface (232), and a second limiting part (233). The first limiting part (231) is located at one end of the limiting groove (23), and the second limiting part (233) is located at the other end of the limiting groove (23). The locking surface (232) is located on the bottom surface of the limiting groove (23) and is located between the first limiting part (231) and the second limiting part (233). The tool bar (2) can slide between the maximum contraction position and the minimum contraction position. When the stud (312) is in the locked position, the stud (312) abuts against the locking surface (232) so that the stud (312) presses the tool bar (2) against the inner wall of the first mounting hole (11) so that... The tool bar (2) cannot slide or extend within the first mounting hole (11) and the receiving cavity (12); when the stud (312) is in the unlocked position, the stud (312) releases the locking of the tool bar (2) so that the stud (312) is disengaged from the locking surface (232), and the tool bar (2) can slide or extend within the first mounting hole (11) and the receiving cavity (12); when the tool bar (2) slides to the maximum retracted position, the first limiting part (231) abuts against the stud (312) to stop the tool bar (2) at the maximum retracted position; when the tool bar (2) slides to the minimum retracted position, the second limiting part (233) abuts against the stud (312) to stop the tool bar (2) at the minimum retracted position.

6. The adjustable screwdriver according to claim 2, characterized in that, The first mounting hole (11) is located on the end wall of the handle (1), and the adjustment hole (13) is located on the side wall of the handle (1).

7. The adjustable screwdriver according to claim 4, characterized in that, The handle (1) also includes a second mounting hole (14) opposite to the first mounting hole (11). The second mounting hole (14) communicates with the receiving cavity (12). When the adjusting device (3) moves to disengage from the limiting groove (23), the knife bar (2) can be disengaged from the receiving cavity (12) through the second mounting hole (14).

8. The adjustable screwdriver according to claim 7, characterized in that, It also includes a cover (4) that detachably covers the second mounting hole (14).

9. The adjustable screwdriver according to claim 8, characterized in that, The side wall of the cover (4) has an annular groove (41) and also includes an elastic locking member (42). The elastic locking member (42) is sleeved in the annular groove (41). The inner wall of the second mounting hole (14) is pressed against the elastic locking member (42). The elastic locking member (42) is pressed against the inner wall of the annular groove (41) so that the elastic locking member (42) presses and locks the cover (4) in the second mounting hole (14). The cover (4) is provided with a raised first anti-slip part (43).

10. The adjustable screwdriver according to claim 3, characterized in that, The surface of the handle (1) is also provided with a raised second anti-slip portion (15); the hand-tightening nut (311) has a raised third anti-slip portion (3111); the second anti-slip portion (15) includes a raised first anti-slip texture (151), a second anti-slip texture (152), a third anti-slip texture (153), a fourth anti-slip texture (154), and a fifth anti-slip texture (155), the first anti-slip texture (151), the second anti-slip texture (152), the third anti-slip texture (153), the fourth anti-slip texture (154), and the fifth anti-slip texture (155) are arranged in a sequentially spaced manner from the first end of the handle (1) to the second end of the handle (1); there is a smooth first gripping area (156) between the first anti-slip texture (151) and the second anti-slip texture (152), and the surface of the first gripping area (156) is surrounded by a plurality of ventilation holes (1561).

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