CN215617719U - Screwdriver - Google Patents
Screwdriver Download PDFInfo
- Publication number
- CN215617719U CN215617719U CN202121854003.3U CN202121854003U CN215617719U CN 215617719 U CN215617719 U CN 215617719U CN 202121854003 U CN202121854003 U CN 202121854003U CN 215617719 U CN215617719 U CN 215617719U
- Authority
- CN
- China
- Prior art keywords
- clamping arm
- elastic clamping
- nut
- screwdriver
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model provides a screwdriver, which comprises a shell; a cutter head; the head end of the elastic clamping arm is a nut chuck, the tail end of the elastic clamping arm is connected with the driving assembly, and the elastic clamping arm comprises an extension clamping state and a shortening clamping state; the driving component drives the elastic clamping arm to change the state; when the elastic clamping arm is in an extension clamping state, the elastic clamping arm moves downwards until a nut chuck clamps the outer side of the nut end; when the elastic clamping arm is in a shortened clamping state, the elastic clamping arm clamps the outer side of the nut end and drives the nut end to move upwards until the cutter head abuts against the top of the nut end. The screwdriver provided by the utility model can well solve the problem that a screwdriver in the prior art cannot tighten fine and electrified screws.
Description
Technical Field
The utility model relates to the technical field of screwdrivers, in particular to a screwdriver.
Background
When the electric secondary overhaul or the unit elimination defect work and the ordinary maintenance work and the like are carried out, a small screw needs to be screwed frequently, the screw needs to be fixed by pressing with a hand when the screw is screwed, and then the screwing work is completed by aligning the screw with the bit of a screwdriver.
On one hand, the screw is small, so that the screw is not convenient to fix by directly touching with hands, and the screw is easy to fall off due to falling off of hands; on the other hand, the screw is often electrified, so that certain danger is brought to direct touching of the screw by hand.
Therefore, a screwdriver is needed to tighten a small, electrically charged screw.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a screwdriver and aims to solve the problem that a screwdriver in the prior art cannot tighten a tiny and electrified screw.
The utility model provides a screwdriver, which comprises a shell; a cutter head; the head end of the elastic clamping arm is a nut chuck, the tail end of the elastic clamping arm is connected with the driving assembly, and the elastic clamping arm comprises an extension clamping state and a shortening clamping state; the driving component drives the elastic clamping arm to change the state; when the elastic clamping arm is in an extension clamping state, the elastic clamping arm moves downwards until a nut chuck clamps the outer side of the nut end; when the elastic clamping arm is in a shortened clamping state, the elastic clamping arm clamps the outer side of the nut end and drives the nut end to move upwards until the cutter head abuts against the top of the nut end.
Furthermore, the driving assembly comprises a spring, a pressing cap and a pressing piece connected with the top end of the elastic clamping arm; the spring is sleeved outside the pressing piece; and the top end of the spring is fixedly connected with the pressing cap, and the bottom end of the spring is fixedly connected with the shell.
Furthermore, the shell is hollow, a first through hole is formed in the top of the shell, and the pressing piece moves up and down in the first through hole; the bottom of the shell is provided with a second through hole, and the elastic clamping arm moves in the second through hole in a lifting mode.
Further, the screwdriver further comprises a screw rod; the top end of the screw rod is arranged in the shell, and the screw rod is fixedly connected with the bottom end of the shell; the bottom end of the twisting rod is detachably connected with the cutter head.
Further, the nut chuck is located outside the tool bit.
Furthermore, a clamping groove is formed in the bottom end of the twisting rod; correspondingly, the top end of the tool bit is provided with a clamping piece, and the twisting rod is clamped with the tool bit.
According to the technical scheme, the driving assembly drives the elastic clamping arm to change the state, so that the screwdriver fixes the nut end of the screw; when the driving assembly drives the elastic clamping arm to be in an extension clamping state, the elastic clamping arm moves downwards until the nut chuck clamps the outer side of the nut end, and the nut end is tightly clamped through the elasticity of the elastic clamping arm and the clamping action of the nut chuck; when the driving assembly drives the elastic clamping arm to be in a shortened clamping state, the clamped nut end moves upwards along with the elastic clamping arm until the cutter head abuts against the top of the nut end.
The screw driver can fix the screw cap end through the elastic clamping arm, the screw cap clamping head and the screw head, and when a fine and electrified screw needs to be screwed down, the screw does not need to be fixed through hand touch.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a front sectional view of a screwdriver according to an embodiment of the present invention.
Description of reference numerals:
1 is a shell, 11 is a first through hole, and 12 is a second through hole;
2 is a cutter head;
3 is an elastic clamping arm, and 31 is a nut chuck;
4 is a driving component, 41 is a spring, 42 is a pressing cap, and 43 is a pressing piece;
and 5, a screw rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of 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 considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning a fixed connection, a threadable 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the present invention provides a screwdriver, which includes a housing 1, a screwdriver head 2, an elastic clamping arm 3 and a driving assembly 4; the drive assembly 4 drives the elastic clamping arm 3 to change state, and the elastic clamping arm 3 comprises an extension clamping state and a shortening clamping state.
The head end of the elastic clamping arm 3 is a nut chuck 31, the tail end of the elastic clamping arm is connected with a driving component 4, and the driving component 4 drives the elastic clamping arm 3 to move up and down so as to change the state of the elastic clamping arm 3; the specific change method comprises the following steps: when the elastic clamping arm 3 is in an extension clamping state, the driving component 4 drives the elastic clamping arm 3 to move downwards until the nut chuck 31 clamps the outer side of the nut end; when the elastic clamping arm 3 is in a shortened clamping state, the elastic clamping arm 3 clamps the outer side of the nut end and drives the nut end to move upwards until the tool bit 2 abuts against the top of the nut end.
Because the screws which are relatively thin and small are often required to be screwed during the electric secondary maintenance or the work of eliminating the defects of the unit, the screws are relatively thin and easy to fall off if the screws are directly touched by hands to fix the screws, and on the other hand, because the screws are often electrified, the screws are directly touched by hands, so that certain danger is brought; and this application just can realize the screwdriver through elasticity arm lock 3, nut dop 31 and tool bit 2 and to the fixed of nut end, can also avoid the nut end electrification to bring danger to maintenance personal when need not to touch the nut end with the hand, fine solution this technical problem.
When the screw is tightened by using the screwdriver, after the screw end of the screw is fixed in the hole, the elastic clamping arm can not clamp the nut end any more, and only the tool bit needs to be used for tightening.
Further, set up elastic clamping arm 3 as elastic effect and lie in: the nut end is tightly clamped through elasticity; the nut chuck 31 is made of an insulating material, so that the safety during operation is improved.
Specifically, the driving assembly 4 has the effect of driving the elastic clamping arm 3 to move up and down, and the driving assembly 4 specifically comprises a spring 41, a pressing cap 42 and a pressing piece 43 connected with the top end of the elastic clamping arm 3; the spring 41 is sleeved on the outer side of the pressing piece 43; the top end of the spring 41 is fixedly connected with the pressing cap 42, and the bottom end of the spring 41 is fixedly connected with the shell 1.
The working process is as follows: make spring 41 compress through pressing down cap 42, and pressing piece 43 is along with pressing down cap 42 downstream, and then drives elasticity arm lock 3 downstream, when the tight nut end of elasticity arm lock 3 clamp, relaxs and presses cap 42, and spring 41's resilience effort makes and presses down cap 42 upward movement, and then drives elasticity arm lock 3 upward movement, and the top that withstands the nut end is withstood to tool bit 2, elasticity arm lock 3 and press cap 42 stop motion.
Further effects by using the spring 41 are: when the elastic clamping arm 3 is clamped from an extension state to a shortening state, the spring 41 is not restored to the original state, so that the resilience acting force of the spring 41 exists all the time, the elastic clamping arm 3 enables the nut end to move upwards all the time, the cutter head 2 above the nut end can prop against the nut end all the time, the nut end is not only in contact with the cutter head 2 at the moment, and therefore the spring 41 can guarantee that the screwdriver and the nut end are constantly in a stable state.
It has been said in the foregoing that the effect that drive assembly 4 played is drive elastic clamping arm 3 oscilaltion motion, and consequently, drive assembly 4 can be for arbitrary can drive elastic clamping arm 3 oscilaltion motion's device, and consequently, drive assembly 4 still can be for mini cylinder, and wherein mini cylinder's output is connected with elastic clamping arm 3, can realize above-mentioned effect through mini cylinder equally, but not the limitation is so.
The housing 1 is provided with a hollow structure, so that the elastic clamping arm 3 can conveniently move up and down in the housing, wherein a first through hole 11 is formed in the top of the housing 1, the pressing piece 43 moves up and down in the first through hole 11, the pressing piece 43 can pass through the first through hole 11, and the spring 41 cannot pass through the first through hole.
In addition, a second through hole 12 is formed in the bottom of the shell 1, and the elastic clamping arm 3 moves up and down in the second through hole 12; the number of the second through holes 12 is two.
Further, the screwdriver also comprises a screw rod 5; the top end of the screw rod 5 is arranged in the shell 1, and the screw rod 5 is fixedly connected with the bottom end of the shell 1; the bottom end of the screwing rod 5 is detachably connected with the cutter head 2; the screw rod 5 is used for fixing the cutter head 2 on one hand and has a force transmission effect on the other hand; when screwing up the nut end, only need to rotate casing 1, pass through the biography power effect of twisting pole 5 and just can realize screwing up of screw.
Further, nut chuck 31 is located the outside of tool bit 2, and nut chuck 31 and tool bit 2 only are in this position, just can be in when shortening the chucking state at elastic clamping arm 3, and elastic clamping arm 3, nut chuck 31 and tool bit 2 just can realize the screwdriver to the fixed of nut end.
Twist the bottom of pole 5 with tool bit 2 can dismantle the effect of connection lies in, conveniently dismantles tool bit 2, changes tool bit 2's specification model, and specification model includes arbitrary specifications such as cross, a word, interior hexagonal, plum blossom shape, U type, Y type, triangle-shaped tool bit specification, and to the screw of different models, the group need use same tool bit 2, if can not strictly match then can lead to the screw to twist when screwing up.
The detachable connection mode comprises any mode such as clamping, threaded connection and the like, and preferably, a clamping groove is formed in the bottom end of the screw rod 5; correspondingly, the top end of the tool bit 2 is provided with a clamping piece, and the twisting rod is clamped with the tool bit.
In conclusion, the technical scheme of the utility model drives the elastic clamping arm to change the state through the driving component, so that the screwdriver fixes the nut end of the screw; when the driving assembly drives the elastic clamping arm to be in an extension clamping state, the elastic clamping arm moves downwards until the nut chuck clamps the outer side of the nut end, and the nut end is tightly clamped through the elasticity of the elastic clamping arm and the clamping action of the nut chuck; when the driving assembly drives the elastic clamping arm to be in a shortened clamping state, the clamped nut end moves upwards along with the elastic clamping arm until the cutter head abuts against the top of the nut end. The screw driver can fix the screw cap end through the elastic clamping arm, the screw cap clamping head and the screw head, and when a fine and electrified screw needs to be screwed down, the screw does not need to be fixed through hand touch.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A screwdriver, comprising:
a housing;
a cutter head;
the head end of the elastic clamping arm is a nut chuck, the tail end of the elastic clamping arm is connected with the driving assembly, and the elastic clamping arm comprises an extension clamping state and a shortening clamping state;
the driving component drives the elastic clamping arm to change the state;
when the elastic clamping arm is in an extension clamping state, the elastic clamping arm moves downwards until a nut chuck clamps the outer side of the nut end; when the elastic clamping arm is in a shortened clamping state, the elastic clamping arm clamps the outer side of the nut end and drives the nut end to move upwards until the cutter head abuts against the top of the nut end.
2. The screwdriver according to claim 1, wherein the driving assembly comprises a spring, a pressing cap and a pressing piece connected with the top end of the elastic clamping arm;
the spring is sleeved outside the pressing piece; and the top end of the spring is fixedly connected with the pressing cap, and the bottom end of the spring is fixedly connected with the shell.
3. The screwdriver according to claim 2, wherein the shell is hollow, a first through hole is formed in the top of the shell, and the pressing piece moves up and down in the first through hole;
the bottom of the shell is provided with a second through hole, and the elastic clamping arm moves in the second through hole in a lifting mode.
4. The screwdriver as recited in claim 1, further comprising a screwdriver rod;
the top end of the screw rod is arranged in the shell, and the screw rod is fixedly connected with the bottom end of the shell;
the bottom end of the twisting rod is detachably connected with the cutter head.
5. The driver of claim 1, wherein said nut holder is located on an outer side of said bit.
6. The screwdriver according to claim 4, wherein the bottom end of the screw rod is provided with a clamping groove;
correspondingly, the top end of the tool bit is provided with a clamping piece, and the twisting rod is clamped with the tool bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121854003.3U CN215617719U (en) | 2021-08-09 | 2021-08-09 | Screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121854003.3U CN215617719U (en) | 2021-08-09 | 2021-08-09 | Screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215617719U true CN215617719U (en) | 2022-01-25 |
Family
ID=79896317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121854003.3U Active CN215617719U (en) | 2021-08-09 | 2021-08-09 | Screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215617719U (en) |
-
2021
- 2021-08-09 CN CN202121854003.3U patent/CN215617719U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2915393Y (en) | Screwdriver with clamping device | |
| CN215617719U (en) | Screwdriver | |
| CN113492373A (en) | Screwdriver | |
| CN208923729U (en) | A kind of electric power cable laying protective device | |
| CN202964520U (en) | Auxiliary tool for replacing PT (Potential Transformer) fuse | |
| CN204658277U (en) | A kind of adjustable panel-mounted stationary fixture | |
| CN202357075U (en) | Graphite electrode torque wrench | |
| CN216085956U (en) | Angle steel cross arm fixture for pole tower insulator replacement | |
| CN110277667B (en) | Pressure spring type high-low voltage grounding rod | |
| CN210414332U (en) | Screwdriver capable of rapidly replacing cutter bar | |
| CN217521284U (en) | Digital electric power instrument for electric power design | |
| CN212510453U (en) | Wiggins gas chamber's installation base | |
| CN105563403A (en) | Pressing type electronic-control screwdriver | |
| CN206140377U (en) | Municipal works street lamp overhauls special screw wholesale | |
| CN221282397U (en) | Capacitance test clamp | |
| CN209095443U (en) | A kind of screwdriver bit with magnetic core | |
| CN218194997U (en) | Multifunctional wrench for ring main unit | |
| CN215058698U (en) | Novel installation of window abrasive paper device | |
| CN216843764U (en) | Industrial electrical appliance automatic protection device convenient to install | |
| CN221407647U (en) | Busbar installation type low-voltage plug-in type separable connector | |
| CN219006102U (en) | Square shell cell clamping jaw | |
| CN208011657U (en) | The LED power of high stable | |
| CN109244953A (en) | A kind of electric power cable laying protective device | |
| CN217571718U (en) | Effectual cylinder screw machine of shock attenuation | |
| CN213858999U (en) | Special screwdriver with insulating torque fastening terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |