CN112476309B - Bent screwdriver - Google Patents
Bent screwdriver Download PDFInfo
- Publication number
- CN112476309B CN112476309B CN202011306434.6A CN202011306434A CN112476309B CN 112476309 B CN112476309 B CN 112476309B CN 202011306434 A CN202011306434 A CN 202011306434A CN 112476309 B CN112476309 B CN 112476309B
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- Prior art keywords
- screwdriver
- magnetic induction
- shielding plate
- induction piece
- inflation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/02—Screwdrivers operated by rotating the handle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0007—Connections or joints between tool parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A bent screwdriver, comprising: a screwdriver handle; a screwdriver bit; a screwdriver rod; flexible positioning mechanism sets up on screwdriver pole, and flexible positioning mechanism includes: the gas charging cavity and the first magnetic induction piece are arranged on the gas charging cavity and face the shielding plate; the gas charging cavity pushes the first magnetic induction piece to move towards the shielding plate in a gas charging state and is abutted against the shielding plate; the screwdriver rod is provided with a containing groove for containing the inflation cavity, and negative pressure is formed in the inflation cavity in the deflation process of the inflation cavity so as to drive the first magnetic induction piece to move towards the direction away from the shielding plate; a positioning display mechanism; when first magnetic induction piece is close to second magnetic induction piece, first indicating mechanism receives the signal that first magnetic induction piece sent, and first indicating mechanism shows screwdriver head indicator that targets in place. When the bent screwdriver in the prior art is operated in a narrow space, the construction efficiency of operators is low, and the problem that the screws are damaged by screwing easily is solved.
Description
Technical Field
The invention relates to the technical field of disassembling tools, in particular to a bending screwdriver.
Background
The screwdriver is a common assembling and maintaining tool and is widely applied to daily production and life of people. In the actual assembly and maintenance process, if the bolt and the screw are in a narrow space, the situation is met. Especially in the aircraft maintenance process, often meet the condition that sets up the screw below the baffle, above-mentioned baffle shelters from the screw, leads to the straight-bar screwdriver often commonly used often because space size restriction, the straight-bar screwdriver can't get into operation space, so can not accomplish the dismouting work of bolt, screw.
In order to solve the above problems, a screwdriver with a bendable front end is provided in the prior art. However, in the use process of the screwdriver, the screw is shielded by the baffle plate, so that the operator is difficult to match and connect the screwdriver with the screw head. Therefore, an operator cannot find the corresponding screw, the screwing work of the screw is realized, and the construction efficiency of the operator is seriously influenced. Moreover, because the operator cannot see the screw shielded by the baffle, the screwdriver and the screw are difficult to effectively fit together, the operator is difficult to effectively screw the screw when screwing the screw, and even the problem that the cross or the straight groove at the top end of the screw is disengaged and the screw is twisted is caused.
Disclosure of Invention
The invention aims to provide a bending screwdriver, which solves the problems that when the bending screwdriver in the prior art is operated in a narrow space, the construction efficiency of operators is low, and screws are easy to damage. Therefore, the invention provides a bending screwdriver, which comprises:
a screwdriver handle;
a screwdriver bit;
the screwdriver rod is bent into an L-shaped structure, and the screwdriver head and the screwdriver handle are respectively arranged at two ends of the screwdriver rod;
flexible positioning mechanism sets up on the screwdriver pole, flexible positioning mechanism includes: the magnetic induction device comprises an inflation cavity and a first magnetic induction piece, wherein the first magnetic induction piece is arranged on the inflation cavity and faces a shielding plate; the inflation cavity pushes the first magnetic induction piece to move towards the shielding plate in an inflation state and is abutted against the shielding plate; the screwdriver rod is provided with a containing groove for containing the inflation cavity, and negative pressure is formed in the inflation cavity in the deflation process of the inflation cavity so as to drive the first magnetic induction piece to move towards the direction far away from the shielding plate;
the positioning display mechanism comprises a second magnetic induction piece arranged on the shielding plate and a first indicating mechanism arranged on the screwdriver handle, and the second magnetic induction piece and the screwdriver are arranged in a corresponding mode; when first magnetic induction spare is close to when the second magnetic induction spare, first indicating mechanism receives the signal that first magnetic induction spare sent, first indicating mechanism shows screwdriver head indicator that targets in place.
Optionally, the first magnetic induction piece and the second magnetic induction piece are mutually-matched electromagnetic sensors.
Optionally, the bending screwdriver further comprises:
and the inflation mechanism is communicated with the inflation cavity through an inflation and deflation pipe embedded in the screwdriver rod, so that inflation or deflation is performed in the inflation cavity.
Optionally, the screwdriver handle is provided with an annular groove arranged along the circumferential direction of the screwdriver handle, and one end of the screwdriver rod facing the screwdriver handle is connected with the screwdriver handle through a C-shaped connecting buckle;
the C-shaped connecting buckle is driven to rotate along the circumferential direction of the screwdriver handle and is embedded in the annular groove.
Optionally, a connecting rod is arranged in the screwdriver handle, the C-shaped connecting buckle is fixedly connected with the connecting rod, and the connecting rod is arranged in the screwdriver handle through a rotating seat; and the C-shaped connecting buckle is connected with the annular groove in an interference fit mode so as to limit the C-shaped connecting buckle to rotate along the circumferential direction of the screwdriver handle.
Optionally, the first indicating mechanism is a first indicator light arranged on the screwdriver handle.
Optionally, the first magnetic induction element is a plate-shaped structure matched with the shape of the shielding plate.
Optionally, the bending screwdriver further comprises:
the screw driving display mechanism is used for displaying whether the screw is driven or not;
the twist display mechanism includes: the pressure sensors are arranged on the surface of the side, facing the screw, of the shielding plate, and the second indicator lamps are arranged on the surface of the side, far away from the screw, of the shielding plate; each screw is respectively opposite to one pressure sensor and one second indicator light;
when the inflation cavity is in an inflation state, the first magnetic induction piece is abutted to the pressure sensor on the shielding plate to trigger a second indicator light corresponding to the screwed screw to light up so as to display that the screw is screwed.
Optionally, a driving motor for driving the screwdriver head to rotate is further arranged in the screwdriver rod.
The technical scheme of the invention has the following advantages:
1. the invention provides a bending screwdriver, which comprises: a screwdriver handle; a screwdriver bit; the screwdriver rod is bent into an L-shaped structure, and the screwdriver head and the screwdriver handle are respectively arranged at two ends of the screwdriver rod;
flexible positioning mechanism sets up on the screwdriver pole, flexible positioning mechanism includes: the magnetic induction device comprises an inflation cavity and a first magnetic induction piece, wherein the first magnetic induction piece is arranged on the inflation cavity and faces a shielding plate; the inflation cavity pushes the first magnetic induction piece to move towards the shielding plate in an inflation state and is abutted against the shielding plate; the screwdriver rod is provided with a containing groove for containing the inflation cavity, and negative pressure is formed in the inflation cavity in the deflation process of the inflation cavity so as to drive the first magnetic induction piece to move towards the direction far away from the shielding plate; the positioning display mechanism comprises a second magnetic induction piece arranged on the shielding plate and a first indicating mechanism arranged on the screwdriver handle, and the second magnetic induction piece and the screwdriver are arranged in a corresponding mode; when first magnetic induction spare is close to when the second magnetic induction spare, first indicating mechanism receives the signal that first magnetic induction spare sent, first indicating mechanism shows screwdriver head indicator that targets in place.
The telescopic positioning mechanism can drive the first magnetic induction piece to abut against the shielding plate, so that the screwdriver head is pushed to move towards the direction of the screw, and the screwdriver head is accurately connected with the screw in an inserting manner. Meanwhile, the first magnetic induction piece which is abutted against the shielding plate can continuously apply driving force for enabling the screwdriver head to be inserted into the screw, and therefore the problem that the screwdriver head and the screw are biased in position and even are disengaged in the rotating process of the bent screwdriver is effectively solved. Secondly, still be provided with on the screwdriver pole and be used for the holding aerify the storage tank in chamber, aerify the chamber in gassing process, form the negative pressure in the aerifing chamber, in order to drive first magnetic induction piece orientation is kept away from the shielding plate direction removes to make first magnetic induction piece can not take place the position with the shielding plate and interfere in immigration and the removal in-process.
In addition, the invention also comprises a positioning display mechanism. Because the shielding plate is provided with the second magnetic induction piece corresponding to the first magnetic induction piece, when the inflation cavity is not filled with gas, the first magnetic induction piece is close to the second magnetic induction piece, and the second magnetic induction piece can receive signals. The first indicating mechanism arranged on the screwdriver handle can send a signal to prompt a user that a screw is arranged at the position, so that the user can screw the screw by bending the screwdriver according to needs. The first magnetic induction piece and the second magnetic induction piece which are matched with each other can effectively prompt the position of a screw of a user, so that the user can accurately find each screw hidden below the shielding plate when the user cannot see the screw.
2. According to the bent screwdriver provided by the invention, the screwdriver handle is provided with the annular groove arranged along the circumferential direction of the screwdriver handle, and one end of the screwdriver rod, facing the screwdriver handle, is connected with the screwdriver handle through the C-shaped connecting buckle; the C-shaped connecting buckle is driven to rotate along the circumferential direction of the screwdriver handle and is embedded in the annular groove.
Through above-mentioned annular groove and the C shape connector link of mutually supporting, can rotate along its circumferential direction through driving screwdriver pole effectively to the orientation of adjustment screwdriver bit. Thereby the screwdriver can be freely adjusted in position in a narrow space and is matched and connected with the screw.
3. According to the bent screwdriver provided by the invention, the connecting rod is arranged in the screwdriver handle, the C-shaped connecting buckle is fixedly connected with the connecting rod, and the connecting rod is arranged in the screwdriver handle through the rotating seat; and the C-shaped connecting buckle is connected with the annular groove in an interference fit mode so as to limit the C-shaped connecting buckle to rotate along the circumferential direction of the screwdriver handle.
The connecting rod can effectively limit the rotation angle of the screwdriver rod, so that the screwdriver rod cannot be offset in position in the rotation process.
4. The invention provides a bending screwdriver, which further comprises: the screw driving display mechanism is used for displaying whether the screw is driven or not; the twist display mechanism includes: the pressure sensors are arranged on the surface of the side, facing the screw, of the shielding plate, and the second indicator lamps are arranged on the surface of the side, far away from the screw, of the shielding plate; each screw is respectively opposite to one pressure sensor and one second indicator light; when the inflation cavity is in an inflation state, the first magnetic induction piece is abutted to the pressure sensor on the shielding plate to trigger a second indicator light corresponding to the screwed screw to light up so as to display that the screw is screwed.
A plurality of pressure sensors are arranged on the surface of the side, facing the screw, of the shielding plate, and a plurality of second indicator lamps are arranged on the surface of the side, away from the screw, of the shielding plate. When the inflation cavity is in an inflation state so as to screw a screw, the first magnetic induction piece is abutted to the pressure sensor on the shielding plate so as to trigger a second indicator light corresponding to the screwed screw to light up to display that the screw is screwed. Whether each screw is screwed or not can be effectively judged through the screwing display mechanism. In aircraft repair, in some special cases, it is necessary to screw the screws at intervals as required, by which the display mechanism can be actuated.
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 schematic structural view of a bent screwdriver according to the present invention in a use state;
FIG. 2 is a schematic perspective view of a bent screwdriver according to the present invention;
FIG. 3 is a schematic structural view of an inflation lumen of a bendable screwdriver according to the present invention in a deflated state;
FIG. 4 is a schematic structural view of an inflation cavity of the bending screwdriver provided by the present invention in an inflated state;
fig. 5 is a schematic view of the connection between the connecting rod and the screwdriver rod provided by the invention.
Description of reference numerals:
1-a screwdriver handle; 2-screwdriver bits; 3-a screwdriver rod; 4-inflating cavity; 5-a shielding plate; 6-a first magnetic induction member; 7-a second magnetic induction member; 8-screw nails; 9-an inflation mechanism; 10-inflation and deflation pipe; 11-an annular groove; 12-C shaped connecting buckles; 13-a second indicator light; 14-a connecting rod; 15-rotating the seat.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A bending screwdriver is described, as shown in fig. 1 to 4, comprising:
a screwdriver handle 1;
a screwdriver bit 2;
the screwdriver rod 3 is bent into an L shape, and the screwdriver bit 2 and the screwdriver handle 1 are respectively arranged at two ends of the screwdriver rod 3; a driving motor for driving the screwdriver head 2 to rotate is further arranged in the screwdriver rod 3;
as shown in fig. 2 and 3, the telescopic positioning mechanism is disposed on the screwdriver rod 3, and the telescopic positioning mechanism includes: the device comprises an inflation cavity 4 and a first magnetic induction piece 6 which is arranged on the inflation cavity 4 and faces a shielding plate 5; the inflation cavity 4 pushes the first magnetic induction piece 6 to move towards the shielding plate 5 in an inflation state, and the first magnetic induction piece is abutted against the shielding plate 5; a containing groove for containing the inflation cavity 4 is formed in the screwdriver rod 3, and negative pressure is formed in the inflation cavity 4 in the deflation process of the inflation cavity 4 so as to drive the first magnetic induction piece 6 to move towards the direction far away from the shielding plate 5;
the positioning display mechanism comprises a second magnetic induction piece 7 arranged on the shielding plate 5 and a first indicating mechanism arranged on the screwdriver handle 1, and the second magnetic induction piece 7 and the screwdriver 8 are arranged in a corresponding mode; in this embodiment, the first magnetic induction element 6 and the second magnetic induction element 7 are mutually adaptive electromagnetic sensors. When the first magnetic induction piece 6 is close to the second magnetic induction piece 7, the first indicating mechanism receives a signal sent by the first magnetic induction piece 6, and the first indicating mechanism displays a screwdriver bit in-place indicating mark; the first indicating mechanism is a first indicating lamp arranged on the screwdriver handle 1; the first magnetic induction piece 6 is a plate-shaped structure matched with the shape of the shielding plate 5;
and the inflation mechanism 9 is communicated with the inflation cavity 4 through an inflation and deflation pipe 10 embedded in the screwdriver rod 3, so that the inflation or deflation of the inflation cavity 4 is realized.
The screwing display mechanism is used for displaying whether the screw 8 is screwed or not; the twist display mechanism includes: a plurality of pressure sensors arranged on the surface of the shielding plate 5 facing the screw 8, and a plurality of second indicator lamps 13 arranged on the surface of the shielding plate 5 facing away from the screw 8; each screw 8 is arranged opposite to one pressure sensor and one second indicator light 13 respectively; when the inflation cavity 4 is in an inflation state, the first magnetic induction piece 6 abuts against the pressure sensor on the shielding plate 5 to trigger the second indicator light 13 corresponding to the screwed screw 8 to light up so as to display that the screw 8 is screwed.
In this embodiment, as shown in fig. 5, the screwdriver handle 1 has an annular groove 11 arranged along the circumferential direction thereof, and one end of the screwdriver rod 3 facing the screwdriver handle 1 is connected to the screwdriver handle 1 through a C-shaped connecting buckle 12; the C-shaped connecting buckle 12 is driven to rotate along the circumferential direction of the screwdriver handle 1 and is embedded in the annular groove 11. In addition, a connecting rod 14 is arranged in the screwdriver handle 1, the C-shaped connecting buckle 12 is fixedly connected with the connecting rod 14, and the connecting rod 14 is arranged in the screwdriver handle 1 through a rotating seat 15; and the C-shaped connecting buckle 12 is connected with the annular groove 11 in an interference fit manner so as to limit the C-shaped connecting buckle 12 to rotate along the circumferential direction of the screwdriver handle 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A kind of bending screwdriver, characterized by, comprising:
a screwdriver handle (1);
a screwdriver bit (2);
the screwdriver rod (3) is bent into an L-shaped structure, and the screwdriver head (2) and the screwdriver handle (1) are respectively arranged at two ends of the screwdriver rod (3);
flexible positioning mechanism sets up on screwdriver pole (3), flexible positioning mechanism includes: the device comprises an inflation cavity (4) and a first magnetic induction piece (6) which is arranged on the inflation cavity (4) and faces a shielding plate (5); the inflation cavity (4) pushes the first magnetic induction piece (6) to move towards the shielding plate (5) in an inflation state, and the first magnetic induction piece is abutted against the shielding plate (5); an accommodating groove for accommodating the inflation cavity (4) is formed in the screwdriver rod (3), and negative pressure is formed in the inflation cavity (4) in the deflation process of the inflation cavity (4) so as to drive the first magnetic induction piece (6) to move towards the direction away from the shielding plate (5);
the positioning display mechanism comprises a second magnetic induction piece (7) arranged on the shielding plate (5) and a first indicating mechanism arranged on the screwdriver handle (1), and the second magnetic induction piece (7) and the screwdriver (8) are arranged in a corresponding mode; when first magnetism induction piece (6) are close to second magnetism induction piece (7), first indicating mechanism receives the signal that first magnetism induction piece (6) sent, first indicating mechanism shows screwdrivers blade indicator that targets in place.
2. The bending screwdriver according to claim 1, wherein said first magnetic induction means (6) and said second magnetic induction means (7) are mutually compatible electromagnetic sensors.
3. The bending screwdriver as recited in claim 1, further comprising:
the inflation mechanism (9) is communicated with the inflation cavity (4) through an inflation and deflation pipe (10) embedded in the screwdriver rod (3), so that the inflation or deflation of the inflation cavity (4) is realized.
4. The bending screwdriver according to claim 1, wherein the screwdriver handle (1) is provided with an annular groove (11) arranged along the circumferential direction of the screwdriver handle, and one end of the screwdriver rod (3) facing the screwdriver handle (1) is connected with the screwdriver handle (1) through a C-shaped connecting buckle (12);
the C-shaped connecting buckle (12) is driven to rotate along the circumferential direction of the screwdriver handle (1) and is embedded in the annular groove (11).
5. The bending screwdriver according to claim 4, wherein a connecting rod (14) is arranged in the screwdriver handle (1), the C-shaped connecting buckle (12) is fixedly connected with the connecting rod (14), and the connecting rod (14) is arranged in the screwdriver handle (1) through a rotating seat (15); and the C-shaped connecting buckle (12) is connected with the annular groove (11) in an interference fit manner so as to limit the C-shaped connecting buckle (12) to rotate along the circumferential direction of the screwdriver handle (1).
6. The bent screwdriver according to claim 1, wherein the first indicator means is a first indicator light arranged on the screwdriver shank (1).
7. The bending screwdriver according to claim 1, wherein the first magnetic induction element (6) is a plate-like structure adapted to the shape of the shielding plate (5).
8. The bending screwdriver as recited in claim 1, further comprising:
the screwing display mechanism is used for displaying whether the screw (8) is screwed or not;
the twist display mechanism includes: a plurality of pressure sensors arranged on the surface of the side, facing the screw (8), of the shielding plate (5), and a plurality of second indicator lamps (13) arranged on the surface of the side, facing away from the screw (8), of the shielding plate (5); each screw (8) is respectively arranged opposite to one pressure sensor and one second indicator light (13);
when the inflation cavity (4) is in an inflation state, the first magnetic induction piece (6) is abutted to the pressure sensor on the shielding plate (5) to trigger a second indicator light (13) corresponding to the screwed screw (8) to light up so as to display that the screw (8) is screwed.
9. The bending screwdriver according to claim 1, wherein a driving motor for driving the screwdriver head (2) to rotate is further arranged in the screwdriver rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011306434.6A CN112476309B (en) | 2020-11-19 | 2020-11-19 | Bent screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011306434.6A CN112476309B (en) | 2020-11-19 | 2020-11-19 | Bent screwdriver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112476309A CN112476309A (en) | 2021-03-12 |
| CN112476309B true CN112476309B (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011306434.6A Active CN112476309B (en) | 2020-11-19 | 2020-11-19 | Bent screwdriver |
Country Status (1)
| Country | Link |
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| CN (1) | CN112476309B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201235518Y (en) * | 2008-07-28 | 2009-05-13 | 济南供电公司 | Special-purpose screwdriver for electric current loop secondary connection |
| CN103737531A (en) * | 2013-12-24 | 2014-04-23 | 苏州欢颜电气有限公司 | Screw driver |
| US9475179B2 (en) * | 2014-08-13 | 2016-10-25 | Chih-Ming Lee | Hand tool with ratcheting feature |
| CN204195637U (en) * | 2014-10-24 | 2015-03-11 | 浙江胜达工具有限公司 | A kind of Novel screwdriver |
| CN204277892U (en) * | 2014-11-24 | 2015-04-22 | 申箭峰 | Aspirated-air type screwed lock pays device |
| CN204772280U (en) * | 2015-07-27 | 2015-11-18 | 国家电网公司 | Dual -purpose screwdriver of quarter butt L type |
| CN205363718U (en) * | 2016-03-03 | 2016-07-06 | 石狮市川朗机械设计有限公司 | Bottle opener with LED lamp just can be buckled |
| CN207710659U (en) * | 2018-01-18 | 2018-08-10 | 东莞市固拓五金科技有限公司 | One kind can air suction type chiastron column screwdriver head |
| CN109909927B (en) * | 2019-03-03 | 2021-03-23 | 陕西理工大学 | High-safety self-separating intelligent torque wrench and using method thereof |
| CN112045608A (en) * | 2020-09-03 | 2020-12-08 | 湖州越彬智能科技有限公司 | Exempt from laborsaving spanner of regulation type |
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2020
- 2020-11-19 CN CN202011306434.6A patent/CN112476309B/en active Active
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| CN112476309A (en) | 2021-03-12 |
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