CN216759708U

CN216759708U - Screwdriver capable of freely switching cone head models

Info

Publication number: CN216759708U
Application number: CN202123230437.9U
Authority: CN
Inventors: 周鹏; 章旺
Original assignee: Nanjing Naiyun Information Technology Co ltd
Current assignee: Nanjing Naiyun Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-17
Anticipated expiration: 2031-12-21

Abstract

The utility model relates to a screwdriver capable of freely switching models of conical heads, which comprises a handle and a conical head shell connected and fixed at the lower end of the handle, wherein two parallel movable cavities are formed in the handle, a pressing component extending out of the top of the handle is arranged in each movable cavity, two parallel conical heads are arranged in the conical head shell, each pressing component is fixedly connected with the corresponding conical head, each conical head is sleeved with a spring clamped in the conical head shell, and each conical head can extend out or contract into the conical head shell under the action of the corresponding pressing component and the spring. The screwdriver bit is reasonable in structure, light in weight, convenient to use and carry, the screwdriver bit heads with the straight-line type conical head and the cross-shaped conical head are combined together, the screwdriver bit is suitable for most screws, and the bit heads can be freely switched when the screwdriver bit is used. When the cone head needs to be replaced by a new one or other special-shaped cone heads with lower use frequency, the cone head shell is unscrewed, and the original cone head is taken out and replaced by the new one.

Description

Screwdriver capable of freely switching cone head models

Technical Field

The utility model relates to a screwdriver capable of freely switching types of conical heads, and belongs to the technical field of hardware tools.

Background

Screwdrivers typically have a tapered head that is inserted into a slot or recess in the head of the screw to turn the screw. Because the slots or the notches of the screw heads have different shapes, screws of different types need to be matched with corresponding screwdrivers, such as common straight screwdrivers and cross screwdrivers, and special screwdrivers such as hexagonal screwdrivers, and the matched screwdrivers need to be selected according to the types of the screws during use. Therefore, in daily work, workers need to carry various types of screwdrivers or screwdriver bits, common screwdrivers of various types and sizes need to be placed in the tool box, and the workers select different screwdrivers or replace the screwdriver bits according to actual needs. To a certain extent, the problem of the requirements of different tools for screwdrivers is solved, but working time is wasted due to the fact that different screwdrivers need to be replaced or different screwdriver bits need to be disassembled for assembly when switching, and therefore inconvenience still exists in practical use. In addition, because a plurality of screwdrivers and screwdriver conical heads are arranged in the tool box, the tool box is very inconvenient for workers to carry, and meanwhile, a plurality of tool components are easy to be confused and easy to lose if the tools are not stored properly, so that the working efficiency is reduced.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a screwdriver with freely switchable cone head models, which has the following specific technical scheme:

the utility model provides a can freely switch screwdriver of awl head model, includes the handle and connects the awl head shell of fixing at the handle lower extreme, vertically in the handle set up two activity chambeies that link up side by side, every the activity intracavity all is provided with the pressing means who extends the handle top, be provided with two awl heads that parallel in the awl head shell, every pressing means is connected fixedly rather than the awl head that corresponds, every awl head all overlaps and is equipped with the spring of card in the awl head shell, every the awl head all can stretch out or shrink into awl head shell at its effect downwardly extending that corresponds pressing means and spring.

Furthermore, each pressing component comprises a pressing rod, a rotating rod arranged at the lower end of the pressing rod and meshed and fixed with the pressing rod, and a guide rail arranged on the inner wall of the movable cavity and meshed and fixed with the rotating rod.

Furthermore, eight pointed tooth-shaped short convex parts are uniformly arranged at the bottom of the pressing rod, four long convex parts with inclined surfaces at the end parts are uniformly arranged at the top of the rotating rod, four groups of concave parts are uniformly arranged at the bottom of the guide rail, each group of concave parts comprises a first inclined surface short concave part, a second inclined surface short concave part and a long concave part which are sequentially arranged, the width of the first inclined surface short concave part is half of that of the second inclined surface short concave part, and the thicknesses of the short convex parts and the concave parts are half of that of the long convex parts.

Further, the lower extreme of awl head shell is provided with the fixed plate, two awl head holes have been seted up in proper order to the position that the fixed plate corresponds two awl heads and extends, every the lower terminal surface of pressing the subassembly bottom all is greater than the top surface that corresponds the awl head, every the diameter in awl head hole all is less than the diameter that corresponds the spring, the one end card of spring is at the lower terminal surface of pressing the subassembly bottom, and the other end card is in the fixed plate of awl head shell.

Furthermore, the handle is fixedly connected with the conical head shell through threads.

Furthermore, the bottom of each pressing component is fixedly connected with the top spline of the corresponding conical head.

Furthermore, the two conical heads comprise a straight conical head and a cross conical head.

Furthermore, the outer surface of the handle is provided with anti-skid lines.

The beneficial effects of the utility model are:

the screwdriver bit is reasonable in structure, light in weight, convenient to use and carry, and the screwdriver bit heads with the straight conical head and the cross conical head in two common specifications are combined together, so that the screwdriver bit is suitable for most screws, and the bit heads can be freely switched.

When the device is used, the top of the pressing rod corresponding to the conical head is pressed, and the corresponding conical head extends downwards out of the conical head shell under the action of the pressing assembly and the spring; when withdrawing the conical head, only need press the conical head once more and press the top of pole, under the effect of pressing subassembly and spring, correspond conical head upwards shrink and go into conical head shell in, prevent that conical head fish tail health or clothing.

The pressing assembly and the corresponding conical head are fixed in a spline connection mode, and the effect of flexibly disassembling and assembling the conical head can be realized. When the cone head needs to be replaced with a new one or other special-shaped cone heads with lower use frequency, the cone head shell is unscrewed, and the original cone head is taken out and replaced with a new one.

The anti-skid lines on the surface of the handle achieve the effect of increasing friction force, time and labor are saved during use, and the working efficiency is effectively improved.

Drawings

Figure 1 is a schematic view of the overall structure of the present invention,

figure 2 is a perspective view of the overall structure of the utility model,

figure 3 is an exploded view of the pressing assembly of the present invention,

figure 4 is a schematic view of the fixing plate structure of the present invention,

figure 5 is a state diagram of the pressing assembly of the present invention,

wherein, FIG. 5 is an initial state diagram,

FIG. 5 is a diagram showing a state where the rotating lever is pressed,

figure 5 shows the state that the rotating rod is fixed by the guide rail after rotating,

figure 5-is the diagram of the situation where the rotating lever is pressed again,

fig 5 is a state diagram of the rotating process of the rotating rod,

figure 5 is the view showing the state that the rotating rod rotates to be fixed again by the guide rail,

in the figure: 1-handle, 2-conical shell, 3-movable cavity, 4-pressing component, 4 a-pressing rod, 4a 1-short convex part, 4 b-rotating rod, 4b 1-long convex part, 4 c-guide rail, 4c 1-first inclined plane short concave part, 4c 2-first inclined plane short concave part, 4c 3-long concave part, 5-conical head, 6-spring, 7-straight conical head, 8-cross conical head, 9-fixing plate, 9 a-conical head hole and 10-anti-slip pattern.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in figure 1, the screwdriver capable of freely switching the types of the conical heads comprises a handle 1 and a conical head shell 2 which is fixedly connected to the lower end of the handle 1 in a threaded manner, and anti-skid grains 10 are arranged on the outer surface of the handle 1, so that friction force can be increased, time and labor are saved during use, and working efficiency is effectively improved.

As shown in fig. 2, two parallel through movable cavities 3 are vertically arranged in the handle 1, a pressing component 4 extending out of the top of the handle 1 is arranged in each movable cavity 3, two parallel conical heads 5 are arranged in the conical head shell 2, and the two conical heads 5 comprise a straight conical head 7 and a cross conical head 8. Every bottom of pressing component 4 is fixed rather than the top splined connection who corresponds conical head 5, can realize the effect of dismantling in a flexible way and installing the conical head, when needs change conical head 5, only need unscrew conical head shell 2, takes out original conical head replacement for new conical head can.

The lower extreme of awl head shell 2 is provided with fixed plate 9, as shown in fig. 4, two awl head holes 9a have been seted up in proper order to the position that fixed plate 9 corresponds two awl heads 5 and extends, every awl head 5 all overlaps and is equipped with spring 6, the lower terminal surface of every 4 bottoms of pressing component all is greater than the top surface that corresponds awl head 5, the diameter of the lower terminal surface of every 4 bottoms of pressing component and every awl head hole 9a all is less than the diameter that corresponds spring 6, the lower terminal surface of the one end card of spring 6 bottom of pressing component 4, the other end card is in the fixed plate 9 of awl head shell 2, every awl head 5 all can stretch out or shrink into awl head shell 2 at its effect downwardly extending that corresponds pressing component 4 and spring 6.

Each pressing assembly 4 comprises a pressing rod 4a, a rotating rod 4b which is arranged at the lower end of the pressing rod 4a and is engaged and fixed with the pressing rod 4a, and a guide rail 4c which is arranged on the inner wall of the movable cavity 3 and is engaged and fixed with the rotating rod 4 b. As shown in fig. 3, eight pointed short protrusions 4a1 are uniformly arranged at the bottom of the pressing rod 4a, four long protrusions 4b1 with inclined ends are uniformly arranged at the top of the rotating rod 4b, four groups of recesses are uniformly arranged at the bottom of the guide rail 4c, each group of recesses comprises a first inclined short recess 4c1, a second inclined short recess 4c2 and a long recess 4c3 which are sequentially arranged, the width of the first inclined short recess 4c1 is half of that of the second inclined short recess 4c2, and the thickness of the short protrusion 4a1 and the thickness of the recess are both half of that of the long protrusion 4b 1.

As shown in fig. 5, fig. 5 is an initial state diagram, when in use, the pressing rod 4a corresponding to the cone head 5 is pressed to extend the cone head 5 out of the cone head hole 9a, as shown in fig. 5, the rotating rod 4b drives the corresponding cone head 5 to extend downwards under the action of the pressing rod 4a, at this time, the spring 6 is also compressed, the top of the long convex part 4b1 of the rotating rod 4b is staggered with the bottom of the second inclined plane short concave part 4c2 of the guide rail 4c, under the action of the spring 6, the rotating rod 4b slides and rotates along the inclined plane of the second inclined plane short concave part 4c2, and slides and rotates to the state shown in fig. 5 c, the rotating rod 4b is fixed by the second inclined plane short concave part 4c2 of the guide rail 4c, at this time, the corresponding cone head 5 also extends out of the cone head hole 9a and is fixed. When the cone head 5 is retracted, the pressing rod 4a corresponding to the cone head 5 is pressed again to make the cone head 5 retract into the cone head hole 9a, as shown in fig. 5 d, the rotating rod 4b drives the corresponding cone head 5 to extend downward again under the action of the pressing rod 4a, at this time, the spring 6 is compressed again, the top of the long protrusion 4b1 of the rotating rod 4b is staggered with the bottom of the first inclined plane short concave part 4c1 of the guide rail 4c, as shown in fig. 5 d, under the action of the spring 6, the rotating rod 4b slides and rotates along the inclined plane of the first inclined plane short concave part 4c1 to the state shown in fig. 5 d, the rotating rod 4b is fixed by the first inclined plane short concave part 4c1 of the guide rail 4c, and the corresponding cone head 5 also retracts into the cone head hole 9a to return to the initial state, so as to prevent the cone head 5 from scratching body or clothes.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a can freely switch screwdriver of conical head model which characterized in that: including handle (1) and connect to fix awl head shell (2) at handle (1) lower extreme, vertically in handle (1) set up two activity chamber (3) that link up side by side, every all be provided with in activity chamber (3) and extend pressing means (4) at handle (1) top, be provided with two awl head (5) that parallel in awl head shell (2), every pressing means (4) is connected fixedly rather than awl head (5) that correspond, every awl head (5) all overlap and are equipped with spring (6) of card in awl head shell (2), every awl head (5) all can stretch out or shrink into awl head shell (2) at its effect downwardly extending that corresponds pressing means (4) and spring (6).

2. The screwdriver capable of freely switching the types of the conical heads as claimed in claim 1, wherein: each pressing component (4) comprises a pressing rod (4 a), a rotating rod (4 b) which is arranged at the lower end of the pressing rod (4 a) and is fixedly meshed with the pressing rod, and a guide rail (4 c) which is arranged on the inner wall of the movable cavity (3) and is fixedly meshed with the rotating rod (4 b).

3. The screwdriver capable of freely switching the types of the conical heads as claimed in claim 2, wherein: eight pointed-tooth-shaped short convex parts (4 a 1) are uniformly arranged at the bottom of the pressing rod (4 a), four long convex parts (4 b 1) with inclined surfaces at the ends are uniformly arranged at the top of the rotating rod (4 b), four groups of concave parts are uniformly arranged at the bottom of the guide rail (4 c), each group of concave parts comprises a first inclined-surface short concave part (4 c 1), a second inclined-surface short concave part (4 c 2) and a long concave part (4 c 3) which are sequentially arranged, the width of the first inclined-surface short concave part (4 c 1) is half of that of the second inclined-surface short concave part (4 c 2), and the thicknesses of the short convex parts (4 a 1) and the concave parts are both half of that of the long convex part (4 b 1).

4. The screwdriver capable of freely switching the types of the conical heads as claimed in claim 1, wherein: the lower extreme of awl head shell (2) is provided with fixed plate (9), two awl head holes (9 a), every have been seted up in proper order to the position that fixed plate (9) correspond two awl head (5) and extend the top surface that the lower terminal surface of pressing component (4) bottom all is greater than corresponding awl head (5), every the diameter of awl head hole (9 a) all is less than the diameter that corresponds spring (6), the one end card of spring (6) is at the lower terminal surface of pressing component (4) bottom, and the other end card is in fixed plate (9) of awl head shell (2).

5. The screwdriver capable of freely switching the types of the conical heads as claimed in claim 1, wherein: the handle (1) is fixedly connected with the conical head shell (2) through threads.

6. The screwdriver capable of freely switching the types of the conical heads as claimed in claim 1, wherein: the bottom of each pressing component (4) is fixedly connected with the top spline of the corresponding conical head (5).

7. The screwdriver capable of freely switching the types of the conical heads as claimed in claim 1, wherein: the two conical heads (5) comprise a straight conical head (7) and a cross conical head (8).

8. The screwdriver capable of freely switching the types of the conical heads as claimed in claim 1, wherein: the outer surface of the handle (1) is provided with anti-skidding lines (10).