CN210476769U

CN210476769U - Fastening tool

Info

Publication number: CN210476769U
Application number: CN201921477451.9U
Authority: CN
Inventors: 季冬霞
Original assignee: Shanghai Pafuluo Stationery Co ltd
Current assignee: Shanghai Pafuluo Stationery Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-05-08
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a fastening tool, include: the screwdriver body is provided with a connecting part used for being connected with the motor; the screwdriver body is sleeved with the connecting sleeve, the first end of the connecting sleeve is screwed with the connecting part of the screwdriver body, the screwdriver body is provided with a screwdriver head part which deviates from the connecting part, and the screwdriver head part is exposed out of the second end of the connecting sleeve; a telescopic sleeve, the activity set up in connecting sleeve's second end, telescopic sleeve surround the sword head portion and expose in connecting sleeve's second end, expose in connecting sleeve's first end telescope-feed behind the pressurized connecting sleeve is inside in order to expose the sword head portion, the utility model discloses can guarantee that the screw of taking the fastening also stretches into the cap for treat the accurate and screw cooperation that corresponds of screw of fastening along the axial of cap for a writing brush.

Description

Fastening tool

Technical Field

The utility model relates to a technique in mechanical assembly field specifically is a fastening tool.

Background

In the existing writing pens, especially pens, generally have a pen cap for protecting a pen point, and a pen cap generally needs to be provided with functional components such as a pen clip and the like, and the functional components are fixed by screws in the pen cap. In the prior art, the screw is prone to being skewed in the process of being screwed down by a screwdriver, so that the screw cannot be normally screwed on the pen cap.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough to the above-mentioned that prior art exists, a fastening tool is proposed, a connecting sleeve has, screwdriver body is located to this connecting sleeve cover, this connecting sleeve can make screwdriver body stretch into along a cap axis direction when stretching into cap of a writing brush inside, treat that the screw of fastening sets up in the expansion sleeve of connecting sleeve tip, thereby also stretch into cap of a writing brush along the axial of cap of a writing brush along with the screw of the assurance area fastening of stretching into of screwdriver body, make the screw cooperation accurate and corresponding of treating the screw of fastening.

The utility model discloses a realize through following technical scheme:

according to an aspect of the present invention, there is provided a fastening tool, including:

the screwdriver body is provided with a connecting part used for being connected with the motor;

the screwdriver body is sleeved with the connecting sleeve, the first end of the connecting sleeve is screwed with the connecting part of the screwdriver body, the screwdriver body is provided with a screwdriver head part which deviates from the connecting part, and the screwdriver head part is exposed out of the second end of the connecting sleeve;

the telescopic sleeve is movably arranged at the second end of the connecting sleeve, surrounds the cutter head part and is exposed out of the second end of the connecting sleeve, and the first end of the telescopic sleeve exposed out of the connecting sleeve is compressed and then is retracted into the connecting sleeve to expose the cutter head part.

Preferably, still include an elastic component, wherein, telescopic sleeve's being located second end circumference in the connecting sleeve is equipped with a spacing boss, the both ends of elastic component are contradicted respectively the first side of spacing boss with a shoulder in the connecting sleeve, with spacing boss compresses to connecting sleeve's second end.

Preferably, the outer diameter of the second end of the telescopic sleeve is smaller than that of the limiting boss.

Preferably, the retraction stroke of the resilient member is greater than the axial length of the cutter head portion.

Preferably, the connection sleeve comprises:

the first connecting cylinder is sleeved on the connecting part of the screwdriver body, and one end of the first connecting cylinder is fixed on the connecting part;

and the second connecting cylinder is connected to the other end of the first connecting cylinder.

Preferably, the screwdriver body is provided with a screwdriver rod part positioned between the screwdriver head part and the connecting part, and the elastic element is sleeved on the screwdriver rod part.

Preferably, the diameter of the shank portion of the screwdriver body is smaller than the diameter of the connecting portion.

Preferably, the peripheral surface of the telescopic sleeve is provided with a limiting step.

Preferably, one end of the first connecting cylinder, which is connected with the second connecting cylinder, is provided with an external thread, and one end of the second connecting cylinder, which is connected with the first connecting cylinder, is provided with an internal thread matched with the external thread.

Preferably, the outer diameter of the first connector barrel and the outer diameter of the second connector barrel are equal.

The beneficial effects of the above technical scheme are: the utility model provides a fastening tool has a connecting sleeve, and screwdriver body is located to this connecting sleeve cover, and this connecting sleeve can make screwdriver body stretch into along a cap axis direction when stretching into cap of a writing brush inside, treats that the screw of fastening sets up in the telescopic sleeve of connecting sleeve tip to also stretch into the cap of a writing brush along the axial of cap of a writing brush along stretching into the screw of guaranteeing to take the fastening of screwdriver body, make treat that the screw of fastening is accurate and the screw cooperation that corresponds.

Further features and advantages of the present invention, as well as the structure and operation of various embodiments of the present invention, are described in detail below with reference to the accompanying drawings. It should be noted that the present invention is not limited to the specific embodiments described herein. These examples are given herein for illustrative purposes only.

Drawings

Other features, objects and advantages of the invention will become more apparent from a reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

Fig. 1 is a schematic view of a fastening tool.

List of reference numerals:

10 fastening tool

11 screwdriver body

111 cutter head part

112 tool shank part

113 connecting part

12 connecting sleeve

121 first connecting cylinder

122 second connecting cylinder

13 telescopic sleeve

131 position-limiting boss

132 limiting step

14 elastic member

The features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings. Throughout the drawings, like reference numerals designate corresponding elements. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As used in this application, the terms "first," "second," and the like do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

According to the utility model discloses an aspect provides a fastening tool, guarantees through this fastening tool that the screw of taking the fastening also stretches into the cap of a pen along the axial of cap of a pen for treat the accurate and screw cooperation that corresponds of screw of fastening.

Fig. 1 is a schematic view of a fastening tool. The fastening tool 10 shown in fig. 1 includes a screwdriver blade 11, the screwdriver blade 11 includes a head portion 111, a shank portion 112 and a connecting portion 113 in sequence, the head portion 111 is used for matching with a pan head of a screw to be fastened, and the head portion 111 may be, but is not limited to, a straight shape, a cross shape or a cross shape. Located between the bit portion 111 and the connecting portion 113 is a shank portion 112, the shank portion 112 of the screwdriver body 11 having a diameter smaller than the diameter of the connecting portion 113. The rear end of the connecting portion 113 of the screwdriver body 11 may be connected to a rotating motor, by which the entire screwdriver body 11 is driven to rotate to fasten the screw at the bit portion 111.

The screwdriver body 11 is sleeved with a connecting sleeve 12, a first end (right end) of the connecting sleeve 12 is screwed on a connecting part 113 of the screwdriver body 11, and a screwdriver head part 111 deviating from the connecting part 113 is exposed out of a second end (left end) of the connecting sleeve 12. A telescopic sleeve 13 is movably disposed at a second end (left end) of the connecting sleeve 12, the telescopic sleeve 13 surrounds the cutter head portion 111 and is exposed out of the second end of the connecting sleeve 12, that is, a central through hole is disposed at the center of the telescopic sleeve 13, and the cutter head portion 111 is disposed in the central through hole of the telescopic sleeve 13. The first end (left end) of the telescopic sleeve 13 exposed to the coupling sleeve 12 is compressed and then retracted into the coupling sleeve 12 to expose the bit portion 111. The connecting sleeve 12 has an elastic member 14 disposed therein, the elastic member 14 is sleeved on the blade portion 112, and the elastic member 14 can be, but is not limited to, a compression spring. The second end (right end) of telescopic sleeve 13 that is located connecting sleeve 12 circumference is equipped with a spacing boss 131, and the both ends of elastic component 14 conflict spacing boss 131's first side and a shoulder in connecting sleeve 12 respectively to press spacing boss 131 to the second end (left end) of connecting sleeve 12. The outer diameter of the second end of the telescopic sleeve 13 is smaller than the outer diameter of the limit boss 131. The elastic member 14 has a contraction stroke greater than the axial length of the tool bit 111, so that the tool bit 111 can be completely exposed to the telescopic sleeve 13 when the telescopic sleeve 13 is compressed and retracted.

The coupling sleeve 12 comprises: a first connecting cylinder 121 and a second connecting cylinder 122, the first connecting cylinder 121 is sleeved on the connecting portion 113 of the screwdriver body 11, and one end (right end) of the first connecting cylinder 121 is fixed on the connecting portion 113. The second connecting cylinder 122 is connected to the other end (right end) of the first connecting cylinder 121. The outer peripheral surface of the telescopic sleeve 13 is provided with a limit step 132 for cooperating with the blocking mechanism of the inner wall of the pen cap to provide a pressure to the telescopic sleeve 13 so that the telescopic sleeve 13 is retracted to expose the head 111. The end of the first connecting cylinder 121 connected to the second connecting cylinder 122 is provided with an external thread, the end of the second connecting cylinder 122 connected to the first connecting cylinder 121 is provided with an internal thread matched with the external thread, that is, the first connecting cylinder 121 and the second connecting cylinder 122 are connected by a thread, and the left end face of the first connecting cylinder 121 forms the shoulder. In some embodiments, the outer diameter of the first connector barrel 121 and the outer diameter of the second connector barrel 122 are equal.

In use of the fastening tool 10 shown in fig. 1, a screw is placed at the opening of the telescopic sleeve 13 so that the pan head of the screw is located inside the telescopic sleeve 13 and the connecting portion 113 of the screwdriver blade 11 is connected to the motor. After the connecting sleeve 12 is inserted into the pen cap, the limiting step 132 of the telescopic sleeve 13 is forced to retract into the connecting sleeve 12, and the head 111 rotates the screw, so that the screw is fixed to the pen cap.

To sum up, the utility model provides a fastening tool has a connecting sleeve, and screwdriver body is located to this connecting sleeve cover, and this connecting sleeve can make screwdriver body stretch into along a cap axis direction when stretching into cap of a writing brush inside, treats that the screw of fastening sets up in the telescopic sleeve of connecting sleeve tip to also stretch into cap of a writing brush along the axial of cap of a writing brush along with the screw of stretching into of screwdriver body assurance area fastening, make the screw that treats the fastening accurate and the screw cooperation that corresponds.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A fastening tool, comprising:

2. The fastening tool of claim 1, further comprising an elastic member, wherein a second end of the telescopic sleeve located inside the connecting sleeve is circumferentially provided with a limit boss, and two ends of the elastic member respectively abut against a first side of the limit boss and a shoulder inside the connecting sleeve to press the limit boss toward the second end of the connecting sleeve.

3. The fastening tool of claim 2, wherein the second end of the telescoping sleeve has an outer diameter that is less than an outer diameter of the stop boss.

4. The fastening tool of claim 2, wherein the elastic member has a contraction stroke greater than an axial length of the bit portion.

5. The fastening tool of claim 1, wherein the coupling sleeve comprises:

6. The fastening tool of claim 2 wherein said screwdriver blade has a shank portion between said nose portion and said coupling portion, said resilient member being disposed about said shank portion.

7. The fastening tool of claim 6, wherein the shank portion of the screwdriver body has a diameter that is less than a diameter of the connecting portion.

8. The fastening tool of claim 1, wherein the outer peripheral surface of the telescopic sleeve is provided with a limit step.

9. The fastening tool of claim 5, wherein the end of the first connector barrel connected to the second connector barrel is provided with an external thread, and the end of the second connector barrel connected to the first connector barrel is provided with an internal thread that mates with the external thread.

10. The fastening tool of claim 9, wherein an outer diameter of the first connector barrel and an outer diameter of the second connector barrel are equal.