CN216030471U

CN216030471U - Pen type screwdriver easy to assemble

Info

Publication number: CN216030471U
Application number: CN202121916096.8U
Authority: CN
Inventors: 王力南
Original assignee: Xiamen Nanchbit Precision Tools Co ltd
Current assignee: Xiamen Nanchbit Precision Tools Co ltd
Priority date: 2020-10-09
Filing date: 2021-08-16
Publication date: 2022-03-15
Anticipated expiration: 2031-08-16
Also published as: CN216265714U; CN216030470U

Abstract

The utility model relates to the field of manual tools, and particularly discloses an easily-assembled pen type screwdriver which comprises a shell and a plurality of tool bit components, wherein a containing cavity for containing the plurality of tool bit components is formed in the shell; a first opening used for loading the containing cavity of the cutter head component is formed at the first end part of the shell, and a second opening used for outputting a tool head of the cutter head component is formed at the second end part of the shell; wherein a blocking cap for blocking the first opening is detachably engaged on the first end portion, and the blocking cap is configured to limit the tool bit assembly in the cavity from exiting the first opening. The utility model has the technical effects of convenient use and easy assembly.

Description

Pen type screwdriver easy to assemble

Technical Field

The utility model relates to the field of manual tools, in particular to a pen type screwdriver easy to assemble and use.

Background

The torque application tool is a manual tool commonly used in daily maintenance, and common torque application tools include a screwdriver, a hexagon wrench and the like. Taking a screwdriver as an example, since screws matched with different products may be different, such as cross, straight, inner hexagon, outer hexagon and the like, and the same type has different sizes, when different screws are matched, a plurality of types of screwdrivers or screwdriver bits need to be replaced (some screwdriver bits can be detached and then the corresponding type of screwdriver bit is replaced), so that the operation is troublesome, and the working efficiency is influenced. In addition, the screwdriver in the prior art is usually sold in a packaged manner, that is, one screwdriver set comprises a screwdriver handle and a plurality of different screwdriver bits, and the screwdriver bits are installed according to different requirements during use, but the situation that the screwdriver bits are lost frequently occurs during use, and the screwdriver is inconvenient to store and use. Therefore, one of the most effective methods is to design a pen-type screwdriver with a bit capable of being selected by simply pressing, but the existing pen-type screwdriver is not only easy to generate clamping stagnation, but also has the problems of inconvenient assembly and troublesome tool bit replacement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a pen-type screwdriver which is convenient to assemble and easy to replace a tool head.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

an easily assembled pen screwdriver comprising a housing and a plurality of bit assemblies, the housing having formed therein pockets for receiving the plurality of bit assemblies; the first end of the shell is provided with a first opening, and the second end of the shell is provided with a second opening for outputting a tool bit of the tool bit assembly; wherein the first end has a cap removably engaged thereto for closing the first opening, the first opening being configured to allow the bit assembly to be inserted or removed therefrom after the cap is removed from the first end.

The technical scheme can be further perfected as follows:

specifically, the housing is provided with a guide groove for moving the cutter head assembly along the axis of the housing, and the first end part is formed as an upper limit for limiting the upward movement of the cutter head assembly.

In particular, the blanking cap is configured to be rotatably engaged on the first end portion.

The optimization is that the plugging cap comprises a rolling bearing, a rotating seat and a fixed connection seat; wherein the fixed connection seat is fixedly connected with the first end part in a detachable mode; wherein the rolling bearing is engaged between the rotary seat and the stationary seat to enable the rotary seat to rotate.

Preferably, a divider for dividing the plurality of cutter head assemblies is arranged in the cavity, and the upper part of the divider is provided with a rod-shaped part for an operator to take out the divider.

Preferably, the divider is inserted into the cavity prior to insertion of the plurality of cutter head assemblies.

In particular, the swivel covers the entire top of the first end portion, and the peripheral side edge of the swivel passes down over the top surface of the first end portion.

Specifically, the rigid connection seat is provided with an upper joint part and a lower joint part; the upper joint part is suitable for sleeving an inner ring of the rolling bearing and can enable the inner ring and the upper joint part to be separated along a specified direction when acting force in the specified direction is exerted on the rotating seat; the lower connecting part is suitable for being in threaded connection with the first end part, and a lower limit position sleeved with the rolling bearing is formed at the upper part of the lower connecting part.

Preferably, the cutter head assembly comprises: a drive rod adapted to transmit an ejection force applied by an operator to the tool head to urge the tool head to move; an adaptive member engaging the drive rod and the tool head, the adaptive member being configured to provide the tool head with freedom of movement in at least two directions so that the tool head can be freely output by the second opening.

In particular, the adaptive member is an elastic peristaltic joint configured to enable the tool head to make curvilinear oscillations as it travels on a non-straight path.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

1. the blocking cap of the present invention is detachably engaged to the first end portion, and when the bit assembly needs to be replaced, the blocking cap is detached from the first end portion so that the first opening is completely opened, and the user can take out the bit assembly to be replaced from the first opening, and after the replacement is completed, mount the blocking cap on the first end portion again. The pen-type screwdriver is convenient to use and easy to assemble, and the tool bit component can be conveniently replaced.

2. The plug cap comprises a fixed seat, a bearing and a rotating seat, wherein the bearing and the fixed seat are detachable, the fixed seat and the first end part are detachable, and the bearing and the rotating seat are not detachable, so that the plug cap has the advantages of simple structure and convenience in use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

Fig. 1 is a schematic overall structure diagram of the first embodiment.

Fig. 2 is an exploded view of the structure of the first embodiment.

Fig. 3 is a schematic structural view of the plugging cap of the first embodiment.

Fig. 4 is a schematic structural view of the separator according to the first embodiment.

Fig. 5 is a schematic view of a cutter head assembly according to the first embodiment.

Reference numerals:

1. a housing; 11. a first end portion; 111. a first opening; 12. a second end portion; 121. a second opening; 13. a plugging cap; 131. a rolling bearing; 132. a rotating base; 133. a fixed connection seat; 133a. upper joint; 133b. a lower joint; 15. a separator; 151. a rod-shaped portion; 2. a cutter head assembly; 21. a drive rod; 22. an adaptive member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this patent does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. A "plurality" is at least two. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described is changed, and are merely for convenience in describing the utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be reasonably understood by those of ordinary skill in the art according to specific situations.

Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

referring to fig. 1 and 2, as one embodiment of the pen type screwdriver, it includes a housing 1 having a longitudinal axis and a plurality of bit assemblies 2, specifically, the number of the bit assemblies 2 is set to 4 in this embodiment, and may be set to 2, 5, 6, or 8 in another embodiment. In addition, in the present invention, unless otherwise noted, the cutter head assembly 2 refers to one cutter head assembly 2, and the number of the cutter head assemblies 2 is at least two. The housing 1 is formed with a cavity therein along its longitudinal axis for receiving 4 bit assemblies 2. A first end part 11 of the shell 1 is provided with a first opening 111 for accommodating the 4 tool bit components 2, the first end part 11 is positioned at the upper part of the shell 1, a second end part 12 of the shell is provided with a second opening 121 for outputting the tool bit of the tool bit components 2, and the second end part 12 is positioned at the lower part of the shell 1; wherein the first end portion 11 has a cap 13 removably engaged thereto for closing a first opening 111 configured to allow the bit assembly to be loaded into and unloaded from the first opening 111 after the cap 13 is removed from the first end portion 11. The tool head in this embodiment is embodied as a screwdriver head, enabling the screws to be screwed in or out.

The housing 1 is provided with a guide groove 14 for moving the cutter head assembly 2 in the housing along the axis thereof, the guide groove 14 is arranged along the longitudinal axis direction of the housing 1 and is shaped as an elongated narrow slit with a certain width, the first end portion 11 is formed as an upper limit for limiting the upward movement of the cutter head assembly 2, the cutter head assembly 2 does not exceed the first end portion 11 when moving upward, and the guide groove 14 limits the moving range of the cutter head assembly 2. The number of guide grooves 14 is the same as the number of cutter head assemblies 2.

The blanking cap 13 is configured to rotatably engage the first end portion 11, particularly in the present embodiment where portions of the components of the blanking cap 13 are rotatable, and in other embodiments where the components are integrally rotatable. By means of the rotation of the blanking cap 13, the operator can easily effect the rotation of the driving screw.

As shown in fig. 3, in particular, the blanking cap 13 comprises a rolling bearing 131, a rotating seat 132 and a stationary seat 133; wherein, the fixing seat 133 detachably fixes the first end portion 11. Specifically, the rolling bearing 131 may be one of a deep groove ball bearing, a thrust bearing, and a tapered roller bearing. The rolling bearing 131 is engaged between the rotary seat 132 and the stationary seat 133 to enable the rotation of the rotary seat 132. The rotary seat 132, the rolling bearing 131 and the fixing seat 133 are sequentially arranged from top to bottom, the rotary seat 132 is fixedly connected with the rolling bearing cover 131 in an undetachable manner, the rolling bearing 131 is detachably connected with the fixing seat 133, or the fixing seat 133 is detachably connected with the first end portion 11. The operator can remove the blanking cap 13 in at least two ways. The first one is that the rotating seat 132, the rolling bearing 131 and the fixing seat 133 are connected to form an undetachable structure, and when the plugging cap 13 needs to be detached, the plugging cap 13 can be pulled out integrally by applying force directly along the axial direction of the housing 1. The second one is that the rotating seat 132 and the rolling bearing 131 are not detachable, the rolling bearing 131 and the fixing seat 133 are detachable, the fixing seat 133 and the first end portion 11 are detachable, and when the plugging cap 13 needs to be detached, the rotating seat 132 and the rolling bearing 131 can be pulled out integrally by applying force along the axial direction of the housing 1, and then the fixing seat 133 and the first end portion 11 are detached. The second mode is adopted in the present embodiment.

A divider 15 for dividing the plurality of bit assemblies 2 is disposed in the cavity, and as shown in FIG. 4, the divider 15 has a rod portion 151 at an upper portion thereof for an operator to remove the divider 15, and the rod portion 151 protrudes upward. The divider 15 has 4 receptacles for receiving the bit assemblies 2, which are configured to extend in the longitudinal direction, in this embodiment having a C-shaped transverse cross-section, and in another embodiment having a profiled, e.g. peach-heart-shaped, transverse cross-section.

For ease of assembly, and ease of positioning, an assembly sequence is used in which the divider 15 is inserted into the pocket prior to the insertion of the plurality of bit assemblies 2, and after insertion of the bit assemblies 2, the bit assemblies 2 are inserted into the pockets of the divider 15 from the first opening 111.

In the present embodiment, the rotary seat 132 covers the entire top of the first end portion 11, and the circumferential side edge of the rotary seat 132 passes downward over the top surface of the first end portion 11 to shield the first end portion 111, the diameter of the rotary seat 132 is larger than that of the first end portion 11, and the top of the first end portion 11 protrudes into the interior of the rotary seat 132. After removal of the cap 13, the first opening 111 is open to facilitate the insertion or removal of the bit assembly 2 by an operator, so that the replacement of the bit assembly 2 can be performed quickly.

The stationary base 133 has an upper engaging portion 133a and a lower engaging portion 133 b; the upper engaging portion 133a is fitted over the inner ring of the rolling bearing 131 and is capable of separating the inner ring and the upper engaging portion 133a in a prescribed direction, specifically, a direction in which the inner ring and the upper engaging portion 133a can be disengaged, specifically, an upward direction in fig. 3, when a force in the prescribed direction is applied to the rotary holder 132; the lower connecting part is in threaded connection with the first end part 11, a lower limit sleeved with a rolling bearing 131 is formed at the upper part of the lower connecting part, the lower part of the rolling bearing 131 abuts against the upper surface of the lower limit, and the top of the cutter head component 2 abuts against the lower surface of the lower connecting part, so that the cutter head component 2 is prevented from falling off.

Referring to fig. 5, the cutter head assembly 2 includes: a driving rod 21 adapted to transmit an operator-applied pushing force to the tool head to push the tool head to move; an adaptive member 22 engaging the drive rod 21 and the tool bit, the adaptive member 22 being configured to be able to provide the tool bit with freedom of movement in at least two directions so that the tool bit can be freely output from the second opening 121. In this embodiment, the tool head has not only the freedom to move linearly along the longitudinal axis of the housing 1, but also the freedom to swing in a direction away from the longitudinal axis, and in addition, it can also have the freedom to move in a curved manner guided by the walls of the lumen. In summary, the adaptive member 22 provides the tool head with the freedom to move freely to the second opening 121. It should be noted that "freely" in the present invention does not mean a completely unrestricted movement, but means a movement that does not cause "significant jamming" under the action of the adaptive member 22.

In the present embodiment, the user selects one of the bit assemblies 2 and applies a pressing force to move the driving rod 21 downward, the driving rod 21 further transmits the pressing force to the adaptive member 22, and the adaptive member 22 transmits the pressing force in the axial direction to the bit assembly 2 to move it in the axial direction. When the cutter head assembly 2 encounters a non-straight path, the compliant member 22 creeps to allow the cutter head assembly 2 to pass through the second opening 121.

In particular, the adaptive member 22 is an elastic peristaltic joint configured to enable the tool head to make curvilinear oscillations while traveling on a non-straight path, avoiding jamming. The elastic peristaltic joint comprises two recesses arranged opposite each other, which allow the tool head to perform a curved oscillation.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An easily assembled pen screwdriver comprising a housing and a plurality of bit assemblies, the housing having formed therein pockets for receiving the plurality of bit assemblies; the method is characterized in that:

the first end of the shell is provided with a first opening, and the second end of the shell is provided with a second opening for outputting a tool bit of the tool bit assembly;

wherein the first end has a cap removably engaged thereto for closing the first opening, the first opening being configured to allow the bit assembly to be inserted or removed therefrom after the cap is removed from the first end.

2. The pen screwdriver as defined in claim 1, wherein said housing is configured with a guide slot for said bit assembly to move along an axis of the housing, said first end portion being formed as an upper limit limiting upward movement of the bit assembly.

3. The pen screwdriver according to claim 1 or 2, wherein said blanking cap is configured to rotatably engage on said first end.

4. The pen screwdriver according to claim 3,

the plug cap comprises a rolling bearing, a rotating seat and a fixed connection seat;

wherein the fixed connection seat is fixedly connected with the first end part in a detachable mode;

wherein the rolling bearing is engaged between the swivel mount and the stationary mount to enable rotation of the swivel mount.

5. The pen screwdriver as defined in claim 1 or 4, wherein a divider for dividing the plurality of bit assemblies is disposed within the cavity, an upper portion of the divider having a shaft portion for an operator to remove the divider.

6. The pen screwdriver as defined in claim 5, wherein the divider is installed into the cavity prior to the plurality of bit assemblies.

7. The pen screwdriver according to claim 4, wherein said rotating base covers the entire top of said first end portion and the peripheral side edge of the rotating base passes down over the top surface of the first end portion.

8. The pen screwdriver as defined in claim 4, wherein the holder has an upper engagement portion detachably engaged with the rolling bearing and a lower engagement portion detachably engaged with the first end portion.

9. The pen screwdriver according to claim 8, wherein the inner ring of the rolling bearing is sleeved on the upper engagement portion and is capable of separating the inner ring and the upper engagement portion in a predetermined direction when a force in the predetermined direction is applied to the rotary holder.

10. The pen-type screwdriver according to claim 8 or 9, wherein the outer ring of the rolling bearing is non-detachably affixed to the rotating base.