A screwdriver with replaceable insulated handle

Abstract

The utility model discloses a screw driver with the convenience of replacing the insulating batch rod, which comprises a handle and a batch rod, and the handle is provided with an adapter seat through clamping, the adapter seat has a central hole for the batch rod to pass through, the batch rod is provided with an inner groove, the adapter seat is provided with a clamping tongue, and the clamping tongue is provided with an arc-shaped protrusion corresponding to the inner groove; the batch rod extends into the central hole, and the arc-shaped protrusion is embedded in the inner groove to limit the batch rod from freely separating from the adapter seat. The utility model has a novel structure, and the batch rod and the handle can be detachably separated, different specifications of bit heads can be conveniently replaced, and the utility model is convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of screwdriver technology, and in particular relates to a screwdriver with an insulated handle that is easy to replace. Background Technology

[0002] A screwdriver is a common tool used to turn screws into place. It usually has a thin wedge-shaped head that can be inserted into the slot or notch of the screw head.

[0003] Existing screwdrivers consist of two parts: a handle and a shaft. The handle and shaft are integrally molded. When the shaft is deformed or the bit is broken, it cannot be replaced separately. Discarding the entire screwdriver would be a waste of materials, and it is also impossible to replace it with bits of different sizes.

[0004] Existing patent document (publication number: CN210307559U) discloses "a screwdriver", the technical solution of which is that the handle and the blade are integrally formed, and it also has the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a screwdriver with a convenient insulated screwdriver bar replacement. It has a novel structure, and the screwdriver bar and handle can be detached and separated, making it convenient to replace different specifications of screwdriver bits and easy to use.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A screwdriver with a convenient insulated bit replacement mechanism includes a handle and a bit. The handle has an adapter seat with a central hole for the bit to pass through. The bit has an inner groove, and the adapter seat has a latch with an arc-shaped protrusion corresponding to the inner groove. The bit extends into the central hole, and the arc-shaped protrusion is embedded in the inner groove to prevent the bit from detaching freely from the adapter seat. This screwdriver has a novel structure, allowing for detachable bit replacement with different bit sizes, making it convenient to use.

[0008] Furthermore, the front end of the handle has a polygonal stepped hole that matches the adapter, which prevents the adapter from rotating circumferentially with the wrench bar and improves the installation stability of the adapter. The polygonal stepped hole and the adapter are interference-fitted, making them in close contact with high friction. The adapter is not easy to come out of the polygonal stepped hole, ensuring a secure installation. The adapter can also be pulled out and replaced, replacing the one-piece molding or adhesive connection method, which is convenient for maintenance.

[0009] Furthermore, the front end of the handle is provided with an outer extension, and a polygonal stepped hole is opened on the outer extension, which increases the contact area between the handle and the adapter, thereby improving the connection strength between the two. The outer extension wraps around the adapter, protecting the adapter from circumferential direct impact and providing simple protection.

[0010] Furthermore, the center hole includes a polygonal hole and a mounting hole. The mounting hole connects to the polygonal hole. The wrench bar has a polygonal end, a mounting part, and a limiting part. The mounting part corresponds to the mounting hole, and the polygonal end corresponds to the polygonal hole. The cross-sectional diameter of the limiting part is larger than the cross-sectional diameter of the mounting hole. An inner groove is formed on the polygonal end.

[0011] Furthermore, the spatula includes a central rod and an insulating outer sleeve. The insulating outer sleeve covers and is fixed to the outside of the central rod, forming a single unit. The two are not easily separated, have insulating properties, improve safety, and are suitable for different working conditions, making it widely applicable.

[0012] Furthermore, the handle is fitted with an anti-slip sleeve, which improves the anti-slip performance of the handle, making it less prone to slipping during use and ensuring reliable operation.

[0013] Furthermore, the anti-slip sleeve is equipped with anti-slip protrusions, which increase the roughness of the anti-slip sleeve surface, thereby increasing the friction and preventing slippage during use, thus ensuring high safety.

[0014] Furthermore, the handle is equipped with a hanging hole for easy hanging, which improves the convenience of carrying or storing.

[0015] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0016] 1. When installing the adapter, insert the adapter into the polygonal stepped hole. The two are in close contact with each other, and the friction is large. The adapter is not easy to fall out of the polygonal stepped hole, so the installation is reliable. The adapter can also be pulled out and replaced, replacing the one-piece molding or adhesive connection method, which is convenient for maintenance. The polygonal stepped hole can prevent the adapter from rotating circumferentially with the screwdriver rod, which improves the installation stability of the adapter.

[0017] 2. When installing the screwdriver bit, insert the polygonal end into the polygonal hole. The polygonal end will press against the latch, causing it to bend outward. When the limiting part is against the end face of the adapter, the limiting part cannot enter the mounting hole, and the mounting part is located in the mounting hole. At this time, the inner groove and the arc-shaped protrusion meet. The latch drives the arc-shaped protrusion to be inserted into the inner groove, indicating that the installation is in place. The assembly difficulty is low. Under the action of no external force, the polygonal end cannot freely disengage from the latch axially. At the same time, the polygonal hole restricts the circumferential free rotation of the polygonal end. Both the circumferential and axial directions are restricted, realizing the limiting and fixing of the screwdriver bit, which has high stability. Pull the screwdriver bit outward with force to make the arc-shaped protrusion disengage from the inner groove. The screwdriver bit can be removed for easy replacement of screwdriver bits of different specifications. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1This is a schematic diagram of the structure of a screwdriver with a convenient insulated rod replacement according to the present invention;

[0020] Figure 2 This is a schematic diagram of the connection between the screwdriver rod and the adapter in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the bit rod in this utility model;

[0022] Figure 4 for Figure 3 The main view;

[0023] Figure 5 This is a schematic diagram of the structure of the adapter in this utility model;

[0024] Figure 6 This is a schematic diagram of the handle structure in this utility model;

[0025] Figure 7 This is a cross-sectional structural diagram of the present invention.

[0026] In the diagram: 1-Handle; 2-Adapter; 3-Pencil rod; 4-Center rod; 5-Insulating jacket; 6-Outer extension; 7-Polygonal stepped hole; 8-Polygonal end; 9-Mounting part; 10-Limiting part; 11-Center hole; 12-Polygonal hole; 13-Mounting hole; 14-Receiving groove; 15-Inner groove; 16-Latch; 17-Arc-shaped protrusion; 18-Anti-slip sleeve; 19-Anti-slip protrusion; 20-Hanging hole. Detailed Implementation

[0027] like Figures 1 to 7 As shown, this utility model discloses a screwdriver with a convenient insulated screwdriver bar replacement, comprising: a handle 1, an adapter 2, and a screwdriver bar 3. The screwdriver bar 3 includes a central rod 4 and an insulating outer sleeve 5. The insulating outer sleeve 5 covers and is fixed to the outside of the central rod 4, forming a whole, and the two are not easily separated. The insulating outer sleeve 5 can be made of PP, which has insulating properties, improves safety, and is suitable for different working conditions, with a wide range of applications.

[0028] The front end of the handle 1 is provided with an outer extension 6, and the outer extension 6 is provided with a polygonal stepped hole 7 that is adapted to the adapter 2. The polygonal stepped hole 7 is interference-fitted with the adapter 2.

[0029] When installing the adapter 2, insert the adapter 2 into the polygonal stepped hole 7. The two are in close contact with each other, resulting in high friction. The adapter 2 is not easy to fall out of the polygonal stepped hole 7, ensuring a secure installation. The adapter 2 can also be pulled out for replacement, replacing the one-piece molding or adhesive connection method, which is convenient for maintenance. The polygonal stepped hole 7 can prevent the adapter 2 from rotating circumferentially with the wrench bar 3, improving the installation stability of the adapter 2. The outer extension 6 increases the contact area between the handle 1 and the adapter 2, thereby improving the connection strength between the two. The outer extension 6 wraps around the adapter 2, protecting the adapter 2 from circumferential direct impact, providing simple protection.

[0030] The insulating jacket 5 is provided with a polygonal end 8, a mounting part 9, and a limiting part 10. The adapter 2 has a central hole 11 for the polygonal end 8 to pass through. The central hole 11 includes a polygonal hole position 12 and a mounting hole position 13. The mounting hole position 13 is connected to the polygonal hole position 12. The polygonal end 8 corresponds to the polygonal hole position 12, and the mounting part 9 corresponds to the mounting hole position 13. The cross-sectional diameter of the limiting part 10 is larger than the cross-sectional diameter of the mounting hole position 13. The handle 1 is provided with a receiving groove 14, which is connected to the polygonal stepped hole 7. The receiving groove 14 is used to receive the polygonal end 8. The polygonal end 8 is provided with an inner groove 15, which is annular. The adapter 2 is provided with a notch, and a latch 16 is provided in the notch. The latch 16 is provided with an arc-shaped protrusion 17 corresponding to the inner groove 15.

[0031] When installing the screwdriver bit 3, insert the polygonal end 8 into the polygonal hole 12. The polygonal end 8 will press the latch 16, causing it to bend outward. When the limiting part 10 is against the end face of the adapter 2, the limiting part 10 cannot enter the mounting hole 13, and the mounting part 9 is located in the mounting hole 13. At this time, the inner groove 15 and the arc-shaped protrusion 17 just meet. The latch 16 drives the arc-shaped protrusion 17 to be inserted into the inner groove 15, indicating that the installation is in place. The assembly difficulty is low. Under the action of no external force, the polygonal end 8 cannot freely disengage from the latch 16 axially. At the same time, the polygonal hole 12 restricts the circumferential free rotation of the polygonal end 8. Both the circumferential and axial directions are restricted, realizing the limiting and fixing of the screwdriver bit 3, which has high stability. Pull the screwdriver bit 3 outward with force, so that the arc-shaped protrusion 17 disengages from the inner groove 15, and the screwdriver bit 3 can be removed for easy replacement of screwdriver bits of different specifications.

[0032] The handle 1 is fitted with an anti-slip sleeve 18, which can be made of rubber, improving the anti-slip performance of the handle 1 and making it less prone to slipping during use, thus ensuring reliable operation. The anti-slip sleeve 18 has anti-slip protrusions 19, which increase the roughness of the surface of the anti-slip sleeve 18, thereby increasing the friction and preventing slipping during use, ensuring high safety.

[0033] The handle 1 has a hanging hole 20 for easy hanging, which improves the convenience of carrying or storing.

[0034] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A screwdriver with a convenient insulated handle, comprising: Handle and screwdriver handle Its features are: An adapter is snapped onto the handle. The adapter has a central hole through which the screwdriver bar passes. The screwdriver bar has an inner groove. The adapter has a latch, and the latch has an arc-shaped protrusion corresponding to the inner groove. The bit extends into the central hole, and the arc-shaped protrusion is embedded in the inner groove to prevent the bit from freely detaching from the adapter.

2. A screwdriver with replaceable insulated bit according to claim 1, characterized in that: The front end of the handle has a polygonal stepped hole that is adapted to the adapter, and the polygonal stepped hole is interference-fitted with the adapter.

3. A screwdriver with replaceable insulated bit according to claim 2, characterized in that: The handle has an outer extension at its front end, and the polygonal stepped hole is formed on the outer extension.

4. The screwdriver with replaceable insulated bit shaft according to claim 1, wherein: The central hole includes a polygonal hole and a mounting hole. The mounting hole is connected to the polygonal hole. The screwdriver has a polygonal end, a mounting part, and a limiting part. The mounting part corresponds to the mounting hole, and the polygonal end corresponds to the polygonal hole. The cross-sectional diameter of the limiting part is larger than the cross-sectional diameter of the mounting hole. The inner groove is formed on the polygonal end.

5. The screwdriver with replaceable insulated bit shaft according to claim 1, wherein: The bit includes a central bit and an insulating outer sleeve, which covers and is fixed to the outside of the central bit.

6. The screwdriver with replaceable insulated bit shaft according to claim 1, wherein: The handle is fitted with an anti-slip sleeve.

7. A screwdriver with replaceable insulated bit according to claim 6, characterized in that: The anti-slip sleeve is provided with anti-slip protrusions.

8. The screwdriver with replaceable insulated bit shaft according to claim 1, wherein: The handle has a hanging hole.

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