Stepless torque-adjusting multi-angle screwdriver

Abstract

The utility model discloses a stepless torque-adjusting multi-angle screwdriver which comprises a tool head assembly, an adjusting drive plate is movably installed at one end of the outer portion of the tool head assembly, and a rotary association fixing piece is fixedly installed at the other end of the outer portion of the tool head assembly. And a handheld grab handle is movably connected to the other end of the outer portion of the rotary association fixing piece, an assembly assembling inserting groove is formed in the middle of the outer side of the adjusting drive plate in advance, drive plate friction lines are formed in the outer portion of the adjusting drive plate in advance, and a rotary adjusting reserved groove is formed in one side of the upper end of the rotary association bearing piece in advance. According to the stepless torque-adjusting multi-angle screwdriver, the structure of the screwdriver is optimized and improved to a large extent, and on the basis that the screwdriver is provided with tool bits of different specifications through the assembly assembling insertion grooves, the machining precision of the screwdriver is effectively improved to a certain extent through the arrangement of the ratchet wheel center shaft, the adjusting drive plate and the multi-stage steel balls; and the overall application range is effectively expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdrivers, in particular to a stepless torque-adjustable multi-angle screwdriver. Background Art

[0002] A screwdriver is a common tool used to turn a screw into place, usually with a thin wedge-shaped head that fits into the slot or recess in the screw head.

[0003] However, most of the existing screwdrivers are of an integrated structure, and the screwdriver head assembly itself is not replaceable, which makes it difficult to use in a variety of usage environments. The scope of application is limited to a certain extent, and it is not conducive to meeting the use requirements of tightening and loosening screws of various specifications in normal use. In addition, the arm length of the existing screwdriver itself is difficult to properly adjust according to the force applied in the use state, which leads to a certain degree of impact on the overall functionality of use. Utility Model Content

[0004] The utility model aims to provide a stepless torque-adjustable multi-angle screwdriver to solve the problems of narrow application range and difficulty in adjusting the arm length according to the force requirement in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stepless torque-adjustable multi-angle screwdriver, comprising a tool head assembly, an adjusting dial is movably installed at one end position of the outside of the tool head assembly, a rotationally associated fixing piece is fixedly installed at the other end position of the outside of the tool head assembly, a hand-held handle is movably connected at the other end position of the outside of the rotationally associated fixing piece, a component assembly slot is preset at the middle position of the outside of the adjusting dial, a dial friction pattern is preset on the outside of the adjusting dial, a rotation adjustment reserved groove is preset on one side position of the upper end of the rotationally associated receiving piece, the rotationally associated receiving piece is movably connected to the rotationally associated fixing piece through the rotationally adjusted reserved groove, and an adjusting member is movably installed at the outer side position of the rotationally associated receiving piece. The fastening bolt is movably connected with the rotation-associated supporting part through adjusting the fastening bolt, the outside of the hand-held handle is fixedly installed with a receiving sleeve, the side position inside the hand-held handle is fixedly installed with a limiting sleeve, the other end of the rotation-associated supporting part is fixedly connected with an adjusting arm rod, the end of the adjusting arm rod passes through the limiting sleeve and is fixedly connected with a limiting disk, the outside of the supporting sleeve is movably installed with an adjusting knob, the inside of the supporting sleeve is movably installed with a roller shaft, the inside of the supporting sleeve is preset with a displacement groove, the outside of the roller shaft is fixedly installed with a clamping roller, the side position of the inner wall of the adjusting knob is movably installed with an elastic fastening pressure block, and a reset spring is fixedly connected between the elastic fastening pressure block and the inner wall of the adjusting knob.

[0006] As a preferred solution of the stepless torque-adjustable multi-angle screwdriver of the utility model, wherein: the rotation-associated fixing member is inside the rotation-adjustment reserved groove of the rotation-associated receiving member with the adjustment fastening bolt as the rotation center, a permanent magnet is fixedly installed at the center position of the lower end of the adjusting dial, and primary stainless steel beads are symmetrically and movably installed at both sides of the adjusting dial, and a compression spring is fixedly connected between the primary stainless steel beads and the inside of the adjusting dial;

[0007] As a preferred solution of the stepless torque-adjustable multi-angle screwdriver of the utility model, a ratchet center shaft is movably installed in the middle position inside the tool head assembly, two-stage stainless steel beads are symmetrically and movably installed on both sides of one end of the ratchet center shaft, and a positioning bolt is preset at one side of the outside of the tool head assembly;

[0008] By optimizing and improving the screwdriver head structure to a certain extent, the component assembly slot enables the screwdriver to assemble tool heads of different specifications. The settings of the ratchet center axis, adjustment dial and multi-stage steel balls effectively improve the processing accuracy of the screwdriver to a certain extent, and effectively expand the overall scope of application. It can be used in a variety of usage environments and different working conditions, which correspondingly improves its own use effect and thus ensures the overall working performance.

[0009] As a preferred solution of the stepless torque-adjustable multi-angle screwdriver of the utility model, the outer specifications of the adjusting arm rod and the inner specifications of the limiting sleeve correspond to each other, the outer diameter of the limiting plate is larger than the outer diameter of the limiting sleeve, and the outer diameter of the adjusting arm rod and the inner diameter of the receiving sleeve correspond to each other;

[0010] By configuring the adjusting arm, the limiting sleeve and the receiving sleeve as plug-in structures with mutually compatible specifications, the screwdriver is endowed with the performance of appropriately adjusting the overall length of the adjusting arm according to usage requirements, and the setting of the limiting plate can effectively prevent the adjusting arm from escaping from the handheld handle during the length adjustment process, thereby greatly enhancing the overall stability of the screwdriver.

[0011] As a preferred solution of the stepless torque-adjustable multi-angle screwdriver of the utility model, the outer specifications of the roller shaft correspond to the inner specifications of the displacement groove, the pressing roller as a whole uses the roller shaft as the rotation center, a rotating annular rail is fixedly installed on the outside of the receiving sleeve, a rotating annular groove is preset inside the adjusting knob, the adjusting knob is movably connected to the rotating annular rail on the outside of the receiving sleeve through the rotating annular groove, and the outer specifications of the rotating annular rail correspond to the inner specifications of the rotating annular groove, the outer ring of the hand-held handle is symmetrically provided with anti-slip grooves at equal intervals, and a pressing spring is fixedly connected between the roller shaft and the bottom of the displacement groove;

[0012] By setting a clamping roller and adding an elastic tightening block accordingly, the adjusting knob is used to rotate the rotating adapter structure between the rotating annular rail and the rotating annular groove outside the receiving sleeve to achieve a downward pressing and tightening effect for adjusting the length of the adjusting arm rod, which can achieve better length adjustment and tightening after adjustment, thereby ensuring the overall stability of the screwdriver and effectively enriching the overall functionality of use.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the stepless torque-adjustable multi-angle screwdriver has optimized and improved its own structure to a great extent. On the basis of the component assembly slot enabling the screwdriver to assemble tool heads of different specifications, the arrangement of the ratchet center axis, the adjustment dial and the multi-stage steel ball has effectively improved the processing accuracy of the screwdriver to a certain extent, and effectively expanded the overall scope of application. It can be used in a variety of use environments and different working conditions, and correspondingly improves its own use effect, thereby ensuring the overall working performance. In addition, the screwdriver is additionally provided with an arm length adjustment function. The structure enables the length of the arm to be appropriately adjusted according to specific usage requirements during normal use of the screwdriver, and through the setting of the clamping roller and the corresponding addition of an elastic tightening block, the adjusting knob is used to rotate on the outside of the receiving sleeve through the rotating adapter structure between the rotating annular rail and the rotating annular groove to achieve a downward pressing and tightening effect on the adjustment of the length of the adjusting arm, which can achieve better length adjustment and tightening after adjustment, thereby ensuring the overall use stability of the screwdriver, thereby effectively enriching the overall use functionality, and thus greatly improving the overall comprehensive use performance of the screwdriver. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model in a contracted state;

[0016] Figure 3 This is a schematic diagram of the structure of the arm length adjustment state of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the utility model in the contracted state;

[0018] Figure 5 This is a schematic diagram of the internal structure of the utility model in the state of adjusting the arm length;

[0019] Figure 6 For this utility model Figure 5 Enlarged structural diagram at A in the middle.

[0020] Numbers in the figure: 1. Fixing head assembly; 2. Adjusting dial; 3. Rotationally associated fixing part; 4. Rotationally associated receiving part; 5. Assembly slot; 6. Dial friction pattern; 7. Adjusting and fastening bolt; 8. Hand grip; 9. Anti-skid groove; 10. Receiving sleeve; 11. Adjusting knob; 12. Primary stainless steel bead; 13. Compression spring; 14. Ratchet center shaft; 15. Secondary stainless steel bead; 16. Positioning bolt; 17. Adjusting arm; 18. Limiting plate; 19. Limiting sleeve; 20. Rotating annular rail; 21. Rotating annular groove; 22. Rotating adjustment reserved groove; 23. Elastic fastening block; 24. Reset spring; 25. Roller; 26. Pressure roller; 27. Displacement groove; 28. Pressure spring; 29. ​​Permanent magnet. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation scheme disclosed below.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation scheme of the present invention in detail, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0024] See also Figure 1-Figure 6The utility model provides a technical solution: a stepless torque-adjustable multi-angle screwdriver, comprising a tool head assembly 1, an adjusting dial 2 is movably installed at one end position of the outside of the tool head assembly 1, a rotation-related fixing part 3 is fixedly installed at the other end position of the outside of the tool head assembly 1, a hand-held handle 8 is movably connected at the other end position of the outside of the rotation-related fixing part 3, a component assembly slot 5 is preset at the middle position of the outside of the adjusting dial 2, a dial friction pattern 6 is preset on the outside of the adjusting dial 2, a rotation-adjusting reserved groove 22 is preset at one side position of the upper end of the rotation-related receiving part 4, the rotation-related receiving part 4 is movably connected to the rotation-related fixing part 3 through the rotation-adjusting reserved groove 22, an adjusting fastening bolt 7 is movably installed at the outer side position of the rotation-related receiving part 4, and a rotation-adjusting screw 7 is movably installed at the outer side position of the rotation-related receiving part 4. The rotation-associated fixing member 3 is movably connected to the rotation-associated receiving member 4 through the adjusting fastening bolt 7, a receiving sleeve 10 is fixedly installed on the outside of the hand-held handle 8, a limiting sleeve 19 is fixedly installed on the side position inside the hand-held handle 8, the other end of the rotation-associated receiving member 4 is fixedly connected with an adjusting arm rod 17, the end of the adjusting arm rod 17 passes through the limiting sleeve 19 and is fixedly connected to the limiting disk 18, an adjusting knob 11 is movably installed on the outside of the receiving sleeve 10, a roller shaft 25 is movably installed on the inside of the receiving sleeve 10, a displacement groove 27 is preset on the inside of the receiving sleeve 10, a clamping roller 26 is fixedly installed on the outside of the roller shaft 25, an elastic fastening pressure block 23 is movably installed on the side position of the inner wall of the adjusting knob 11, and the elastic fastening pressure block 23 is fixedly installed on the inner wall of the adjusting knob 11 A reset spring 24 is fixedly connected between the tool head assembly 1, the rotation-related fixing part 3 takes the adjusting fastening bolt 7 as the rotation center inside the rotation adjustment reserved groove 22 of the rotation-related receiving part 4, a permanent magnet 29 is fixedly installed at the center position of the lower end of the adjusting dial 2, and the first-level stainless steel beads 12 are symmetrically and movably installed on both sides of the adjusting dial 2. A compression spring 13 is fixedly connected between the first-level stainless steel beads 12 and the adjusting dial 2. A ratchet center shaft 14 is movably installed at the middle position inside the tool head assembly 1, and second-level stainless steel beads 15 are symmetrically and movably installed on both sides of one end of the ratchet center shaft 14. A positioning bolt 16 is preset at one side position of the outside of the tool head assembly 1, and the external specifications of the adjusting arm rod 17 and the internal specifications of the limiting sleeve 19 are mutually aligned. The outer diameter of the limit plate 18 is larger than the outer diameter of the limit sleeve 19, and the outer diameter of the adjusting arm 17 corresponds to the inner diameter of the receiving sleeve 10. The outer specifications of the roller shaft 25 correspond to the inner specifications of the displacement groove 27. The pressing roller 26 as a whole uses the roller shaft 25 as the rotation center. A rotating annular rail 20 is fixedly installed on the outside of the receiving sleeve 10. A rotating annular groove 21 is preset inside the adjusting knob 11. The adjusting knob 11 is movably connected to the rotating annular rail 20 on the outside of the receiving sleeve 10 through the rotating annular groove 21. The outer specifications of the rotating annular rail 20 correspond to the inner specifications of the rotating annular groove 21. The outer ring of the hand-held handle 8 is symmetrically provided with anti-slip grooves 9 at equal intervals.The provision of the anti-slip groove 9 can enhance the hand-holding stability of the worker during the use of the screwdriver, and a compression spring 28 is fixedly connected between the roller shaft 25 and the bottom of the displacement groove 27. The setting of the compression spring 28 enables the roller shaft 25 to bounce upwards due to the elasticity of the compression spring 28 when the pressure of the elastic fastening block 23 in the adjustment knob 11 is lost, thereby causing the adjustment arm 17 to lose the pressure applied by the compression roller 26, and the adjustment operation can be freely performed.

[0025] Working principle: When the screwdriver needs to be used to tighten or remove the specified screw, the normal use principle of the screwdriver can be used simply and conveniently. By rotating the adjustment dial 2, the ratchet center axis 14 inside the tool head assembly 1 can be rotated to achieve the switching adjustment of the working direction of the screwdriver. The setting of the assembly slot 5 enables the screwdriver to have the functionality of replacing the tool head assembly, thereby ensuring that it can be used in a variety of usage environments and work scenes, enriching the overall functionality and correspondingly expanding the overall application range of the screwdriver. In addition, by setting the clamping roller 26 and adding a corresponding The elastic fastening block 23 utilizes the rotating adapter structure between the rotating annular rail 20 and the rotating annular groove 21 of the adjusting knob 11 outside the receiving sleeve 10 to rotate to achieve the downward pressing and fastening effect of adjusting the length of the adjusting arm 17, which can achieve better length adjustment and fastening after adjustment, thereby ensuring the overall stability of the screwdriver, thereby effectively enriching the overall functionality of use, and then the screwdriver can utilize the adjusting knob 11 and the internal adjusting and fastening structure to adjust and fasten the adjusting arm 17 to any length, filling the gap that the screwdrivers in the existing market cannot adjust the arm distance, and has extremely broad application prospects.

[0026] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0028] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0029] It should be noted that the above implementation scheme is only used to illustrate the technical solution of the utility model and is not a limitation. Although the utility model is described in detail with reference to the preferred implementation scheme, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A stepless torque-adjustable multi-angle screwdriver, comprising a tool head assembly (1) and a rotationally associated receiving member (4), characterized in that: An adjusting dial (2) is movably mounted on one end of the exterior of the tooling head assembly (1), a rotationally associated fixing member (3) is fixedly mounted on the other end of the exterior of the tooling head assembly (1), a hand-held handle (8) is movably connected to the other end of the exterior of the rotationally associated fixing member (3), a component assembly slot (5) is preset at a middle position on the exterior of the adjusting dial (2), a dial friction pattern (6) is preset on the exterior of the adjusting dial (2), a rotationally associated receiving member (4) is preset at one side of the upper end thereof with a rotationally adjusted reserved groove (22), the rotationally associated receiving member (4) is movably connected to the rotationally associated fixing member (3) via the rotationally adjusted reserved groove (22), an adjusting fastening bolt (7) is movably mounted on the exterior side of the rotationally associated receiving member (4), the rotationally associated fixing member (3) is adjusted via the adjustment fastening bolt (7) and the rotationally associated receiving member (4) is connected to the rotationally associated receiving member (4) via the adjustment fastening bolt (7). The hand-held handle (8) is movably connected, wherein a receiving sleeve (10) is fixedly mounted on the outside of the hand-held handle (8), a limiting sleeve (19) is fixedly mounted on the side position of the inside of the hand-held handle (8), the other end of the rotation-related receiving member (4) is fixedly connected to an adjusting arm (17), the end of the adjusting arm (17) passes through the limiting sleeve (19) and is fixedly connected to a limiting disk (18), an adjusting knob (11) is movably mounted on the outside of the receiving sleeve (10), a roller (25) is movably mounted on the inside of the receiving sleeve (10), a displacement groove (27) is preset on the inside of the receiving sleeve (10), a clamping roller (26) is fixedly mounted on the outside of the roller (25), an elastic fastening block (23) is movably mounted on the side position of the inner wall of the adjusting knob (11), and a return spring (24) is fixedly connected between the elastic fastening block (23) and the inner wall of the adjusting knob (11).

2. The stepless torque-adjustable multi-angle screwdriver according to claim 1, characterized in that: The rotationally associated fixing member (3) is located inside the rotationally-adjustable reserved groove (22) of the rotationally-associated receiving member (4) with the adjusting fastening bolt (7) as the rotation center; a permanent magnet (29) is fixedly mounted at the center position of the lower end of the adjusting dial (2); primary stainless steel beads (12) are symmetrically and movably mounted at two sides of the adjusting dial (2); and a compression spring (13) is fixedly connected between the primary stainless steel beads (12) and the inside of the adjusting dial (2).

3. The stepless torque-adjustable multi-angle screwdriver according to claim 2, characterized in that: A ratchet center shaft (14) is movably mounted in the middle position inside the tool head assembly (1), and secondary stainless steel beads (15) are symmetrically and movably mounted on both sides of one end of the ratchet center shaft (14), and a positioning bolt (16) is preset at one side position outside the tool head assembly (1).

4. The stepless torque-adjustable multi-angle screwdriver according to claim 3, characterized in that: The outer dimensions of the adjusting arm (17) and the inner dimensions of the limiting sleeve (19) correspond to each other, the outer diameter of the limiting plate (18) is larger than the outer diameter of the limiting sleeve (19), and the outer diameter of the adjusting arm (17) and the inner diameter of the receiving sleeve (10) correspond to each other.

5. The stepless torque-adjustable multi-angle screwdriver according to claim 4, characterized in that: The external specifications of the roller shaft (25) and the internal specifications of the displacement groove (27) correspond to each other. The pressure roller (26) as a whole uses the roller shaft (25) as the rotation center. A rotating annular rail (20) is fixedly installed on the outside of the receiving sleeve (10). A rotating annular groove (21) is preset inside the adjusting knob (11). The adjusting knob (11) is movably connected to the external rotating annular rail (20) of the receiving sleeve (10) through the rotating annular groove (21), and the external specifications of the rotating annular rail (20) and the internal specifications of the rotating annular groove (21) correspond to each other.

6. The stepless torque-adjustable multi-angle screwdriver according to claim 4, characterized in that: The outer ring of the hand-held handle (8) is symmetrically provided with anti-slip grooves (9) at equal intervals, and a compression spring (28) is fixedly connected between the roller shaft (25) and the bottom of the displacement groove (27).

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