Screwdriver head connecting rod structure

Abstract

The utility model relates to a screwdriver head connecting rod structure, which comprises a connecting rod body, a control sleeve and a grab handle, the connecting rod body is in a hollow long rod shape, is provided with an accommodating space for accommodating a screwdriver head and is provided with a positioning piece for stably fixing the screwdriver head, and the control sleeve is arranged at a second open end of the connecting rod body and is used for controlling the positioning piece to be fixed and released. The grab handle is provided with a positioning ball, a buffering piece and an adjusting screw so as to provide stable operation hand feeling, and the screwdriver is simple in structure and capable of effectively fixing and replacing the screwdriver head and improving use convenience and stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of screwdriver bit connecting rods, in particular to a screwdriver bit connecting rod structure. Background Art

[0002] In the prior art, screwdriver bit extension rod structures are widely used in various hand tools, but there are several major problems in their design:

[0003] Inadequate fixing mechanisms: Many existing screwdriver extensions are solid, long rods that use traditional threads or latches to secure the screwdriver bit. However, these designs are insufficient and can easily wear out over time, causing the screwdriver bit to loosen or even fall off. This is especially true under high-frequency or high-torque conditions. This limits the tool's practicality and durability, impacting user experience and safety.

[0004] Complicated replacement: In some existing designs, replacing a screwdriver bit requires multiple steps, such as turning screws or latches to unlock, remove, or replace the bit. This is inconvenient for frequent bit switching, increasing operational complexity and reducing work efficiency. Furthermore, the tool's fastening components are susceptible to wear and tear during frequent replacement, further compromising structural stability.

[0005] Grip stability: In some traditional designs, the extension rod or handle lacks grip-enhancing details, such as non-slip surfaces or polygonal structures. This makes it easy for the user to slip during operation, especially when applying high force, reducing the user's operational stability and precision.

[0006] To address these issues, several existing solutions attempt to improve the screwdriver bit's securement and convenience by adding springs, adjusting sleeves, or employing specialized snap-on designs. However, most of these solutions are structurally complex, increasing manufacturing costs and making installation difficult. These technical limitations have resulted in a continued lack of a screwdriver bit extension structure that combines stability, convenience, and versatility. This is precisely the improvement addressed by the present invention.

[0007] In response to the above-mentioned problems faced by existing devices, the inventors have conducted in-depth research and applied scientific knowledge. Drawing on years of design, development and practical experience in the relevant industry, the inventors have improved the shortcomings of existing structures and finally successfully developed a screwdriver head connecting rod structure to overcome the troubles and inconveniences derived from existing devices. Utility Model Content

[0008] This new invention proposes an improved screwdriver bit connecting rod structure, which enhances the tool usage experience through a stable fixing mechanism and a convenient replacement design.

[0009] A screwdriver head connecting rod structure, comprising:

[0010] A connecting rod body, which is in the shape of a hollow long rod, has a first open end and a second open end, and has an internal accommodation space for accommodating at least one screwdriver bit, wherein two first through holes are provided near the first open end for accommodating two first positioning members, and two second through holes are provided near the second open end for accommodating two second positioning members, so that the first positioning members and the second positioning members are engaged with the screwdriver bit;

[0011] a control sleeve in the form of a hollow sleeve having an outer edge surface and an inner edge surface, and accommodating an elastic member and a C-shaped buckle, wherein the elastic member is disposed near the second open end of the connecting rod body, the C-shaped buckle is positioned at the second open end, and the control sleeve is disposed at the second open end; and

[0012] A handle has a third through hole for accommodating the first positioning member.

[0013] Furthermore, the first positioning member includes a positioning ball, a buffer member and an adjusting screw. The positioning ball and the buffer member are sequentially plugged into the first through hole and the buffer member is adjusted by the adjusting screw.

[0014] Furthermore, the inner edge of the control sleeve has a stopper that contacts the second positioning member and, when the control sleeve is displaced, forces the second positioning member to removably position the screwdriver bit. The inner edge of the control sleeve has a stopper that, when the control sleeve is displaced, contacts the second positioning member, allowing the screwdriver bit to be fixed or removed, thereby enabling quick replacement.

[0015] Furthermore, the handle has at least two extended connecting portions for accommodating at least one sub-head.

[0016] Furthermore, the connecting rod body has an auxiliary gripping portion with a hexagonal cross section.

[0017] In addition, the structure has a through hole in the handle to facilitate the placement of the positioning member, making the operation more stable. This utility model not only simplifies the installation and removal process of the screwdriver bit, improves the stability of the tool, but also enhances the versatility of the tool, making it suitable for a variety of usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the screwdriver head connecting rod structure of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of the screwdriver head connecting rod structure of the utility model;

[0020] Figure 3It is a cross-sectional schematic diagram of the screwdriver head connecting rod structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the operation of the control sleeve of the screwdriver head connecting rod structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the operation of the control sleeve of the screwdriver head connecting rod structure of the utility model;

[0023] Figure 6 This is a schematic diagram of the handle buckling of the screwdriver head connecting rod structure of the utility model;

[0024] Figure 7 It is a schematic diagram of the handle buckling of the screwdriver head connecting rod structure of the utility model.

[0025] 10: Post body

[0026] 11: First open end

[0027] 111: First through hole

[0028] 112: First positioning member

[0029] 113: Positioning ball

[0030] 114: Buffer

[0031] 115: Adjusting screw

[0032] 12: Second open end

[0033] 121: Second through hole

[0034] 122: Second positioning member

[0035] 13: Storage space

[0036] 14: Grip

[0037] 20: Screwdriver head

[0038] 30: Control Set

[0039] 31: outer edge

[0040] 32: Inner edge

[0041] 321: Stop

[0042] 33: Elastic parts

[0043] 34: C-type buckle

[0044] 40: handle

[0045] 41: The third through hole

[0046] 42: Extended connection DETAILED DESCRIPTION

[0047] The present invention relates to a screwdriver bit extension structure. In the accompanying drawings illustrating specific embodiments of the present invention and its components, all references to front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are for ease of description only and are not intended to limit the present invention or its components to any particular position or spatial orientation. The dimensions specified in the drawings and description may vary according to the design and requirements of the present invention without departing from the scope of the present invention.

[0048] See also Figures 1 to 7 The screwdriver bit extension rod structure of the present invention is designed to provide the dual advantages of stability and convenience. The structural design encompasses all the features of the claims and achieves ideal usage results. The extension rod body 10 is a hollow, long rod with two open ends, forming an internal storage space for storing the screwdriver bit 20. The extension rod body 10 is provided with two first through-holes 111 near the first open end for accommodating a first positioning member 112, thereby stably securing the screwdriver bit 20. Two second through-holes 121 are also provided near the second open end for accommodating a second positioning member 122, preventing the screwdriver bit 20 from becoming loose during operation.

[0049] The control sleeve 30 is mounted on the second open end of the connecting rod body 10 and contains an elastic member 33 and a C-shaped buckle 34. The elastic member 33 is located near the second open end of the connecting rod body 10 to provide elastic support, while the C-shaped buckle 34 is positioned between the control sleeve 30 and the second open end of the connecting rod body 10 to ensure that the control sleeve 30 is securely positioned. The control sleeve 30 has an outer edge 31 and an inner edge 32. The inner edge 32 of the control sleeve 30 is provided with a stop 321. When the control sleeve 30 is displaced, the stop 321 drives the second positioning member 122 to engage or disengage with the screwdriver bit 20, thereby conveniently enabling the assembly and disassembly of the screwdriver bit 20.

[0050] Furthermore, the handle 40 is provided with a third through-hole 41 to accommodate the positioning ball 113, buffer 114, and adjustment screw 115 of the first positioning member 112. This design allows the positioning ball 113 and buffer 114 to be sequentially positioned within the first through-hole 111 and adjusted using the adjustment screw 115. The adjustment process further controls the pressure of the buffer 114, resulting in more precise positioning and enhancing the tool's adaptability under various operating conditions. Furthermore, the inner edge of the control sleeve 30 is designed with a stop 321 that contacts the second positioning member 122 and allows for the removable positioning of the screwdriver bit 20 when the control sleeve 30 is displaced, ensuring a secure engagement. Furthermore, the connecting rod body 10 is provided with a hexagonal auxiliary grip 14 near the handle 40, enhancing user stability and comfort during operation and preventing the tool from slipping when applying force.

[0051] The handle 40 has two extending connecting portions 42 for accommodating at least one driver.

[0052] Each component of this structural design is tightly coordinated, from the positioning member of the connecting rod body 10 to the elastic member 33 and the stop portion 321 of the control sleeve 30, to the stable support of the handle 40, all of which achieve a synergistic effect through careful design. This configuration not only achieves stable installation of the screwdriver head, but also greatly simplifies the disassembly and assembly process, meeting the efficiency and stability requirements in various usage scenarios.

[0053] Thus, it can be understood that the present utility model is a highly creative utility model that not only effectively solves the problems faced by conventional technologies but also significantly improves the efficacy. Moreover, there are no identical or similar product utility models or public uses in the same technical field. At the same time, it has improved efficacy, and therefore a utility model patent application is filed in accordance with the law.

Claims

1. A screwdriver head connecting rod structure, characterized in that: Include: A connecting rod body, which is in the shape of a hollow long rod, has a first open end and a second open end, and has an internal accommodation space for accommodating at least one screwdriver bit, wherein two first through holes are provided near the first open end for accommodating two first positioning members, and two second through holes are provided near the second open end for accommodating two second positioning members, so that the first positioning members and the second positioning members are engaged with the screwdriver bit; a control sleeve in the form of a hollow sleeve having an outer edge surface and an inner edge surface, and accommodating an elastic member and a C-shaped buckle, wherein the elastic member is disposed near the second open end of the connecting rod body, the C-shaped buckle is positioned at the second open end, and the control sleeve is disposed at the second open end; and A handle has a third through hole for accommodating the first positioning member.

2. The screwdriver head connecting rod structure according to claim 1, characterized in that: The first positioning member includes a positioning ball, a buffer member and an adjusting screw. The positioning ball and the buffer member are sequentially plugged into the first through hole and the buffer member is adjusted by the adjusting screw.

3. The screwdriver head connecting rod structure according to claim 1, characterized in that: The inner edge of the control sleeve is provided with a stop portion, which contacts the second positioning member and is driven by the displacement of the control sleeve to force the second positioning member to be detachably positioned with the screwdriver head.

4. The screwdriver head connecting rod structure according to claim 1, wherein: The handle has at least two extended connecting parts for accommodating at least one driver head.

5. The screwdriver head connecting rod structure according to claim 1, wherein: The connecting rod body has an auxiliary gripping portion with a hexagonal cross section.

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