CN216991695U - Handheld rod type fixed-torque screwdriver - Google Patents
Handheld rod type fixed-torque screwdriver Download PDFInfo
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- CN216991695U CN216991695U CN202122661330.3U CN202122661330U CN216991695U CN 216991695 U CN216991695 U CN 216991695U CN 202122661330 U CN202122661330 U CN 202122661330U CN 216991695 U CN216991695 U CN 216991695U
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- toothed ring
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
The utility model discloses a hand-held rod type constant-torque screwdriver, which comprises a constant-torque screwdriver body, wherein a mounting sleeve is fixedly arranged outside the constant-torque screwdriver body, mounting boxes are respectively arranged on the four side surfaces of the mounting sleeve, clamping holes are formed in the outer surface of each mounting box, a force application rod is connected inside each clamping hole in a penetrating manner, a toothed ring is movably connected inside each mounting box, a first gear is meshed outside each toothed ring, second gears are movably connected on the edges of the inner walls of the four sides of each mounting box, through holes are formed in the inner walls of the four sides of each mounting box, one side of each second gear penetrates through the inside of each through hole, a rack plate is meshed inside each through hole, one end of each rack plate is fixedly connected to a clamping column on the inner side of each mounting box, the force application rod is placed between armpits when the hand-held constant-torque screwdriver is used flexibly, and the force application rod can be used by one hand with a torque of more than 20 Nm, the device has the advantages of wide application, high working efficiency and stable torque output.
Description
Technical Field
The utility model relates to the technical field of fixed-torque screwdriver, in particular to a handheld rod type fixed-torque screwdriver.
Background
The pneumatic screwdriver runs by using compressed air as power, is provided with a device for adjusting and limiting torque, is mainly used for various assembly operations, and consists of a pneumatic motor, a hammering type device or a speed reducing device.
The torque is the average torque output from a crankshaft end when an engine runs and is commonly called as the turning force of the engine, and is an important parameter of the performance of the engine, the larger the torque is, the larger the turning force output by the engine is, the more accurate torque cannot be set by the traditional handheld screwdriver, and even if the torque is larger, the screw cannot be flexibly tightened in a handheld mode, and the torque exceeds four newton meters, so that a user cannot hold the screwdriver by a hand. Therefore, the handheld rod type fixed-torque screwdriver is improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model relates to a handheld rod type constant-torque screwdriver, which comprises a constant-torque screwdriver body, wherein an installation sleeve is fixedly arranged outside the constant-torque screwdriver body, installation boxes are respectively arranged on the four side surfaces of the installation sleeve, clamping holes are formed in the outer surface of each installation box, a force application rod penetrates through the clamping holes, a toothed ring is movably connected inside each installation box, a first gear is meshed with the outer side of each toothed ring, second gears are movably connected to the edges of the inner walls of the four sides of each installation box, through holes are formed in the inner walls of the four sides of each installation box, which are positioned on one side of each second gear, a rack plate is meshed with the inner part of each through hole, and one end of each rack plate is positioned on the inner side of each installation box and is fixedly connected with a clamping column.
As a preferred technical solution of the present invention, a shaft rod is fixedly connected to an outer surface of the first gear, and a knob is fixedly connected to an outside of the shaft rod, which extends to the mounting box.
In a preferred embodiment of the present invention, the second gear and the ring gear are engaged with each other, the ring gear has a diameter larger than that of the first gear, and the first gear has a diameter larger than that of the second gear.
As a preferable technical scheme of the utility model, the first gear and the knob are both positioned at the corner of one side of the mounting box, and the shaft lever is in threaded connection with the mounting box.
In a preferred embodiment of the present invention, the rack plate and the clip column are both located at an outer side of the toothed ring, and a gap is provided between the rack plate and the clip column and the toothed ring.
As a preferred technical scheme of the utility model, the rack plate and the clamping column are both made of stainless steel, and the clamping column is of a cylindrical structure.
As a preferable technical scheme of the utility model, one end of the stress application rod is equidistantly provided with four limiting holes, and the clamping column movably penetrates through the limiting holes.
The utility model has the beneficial effects that:
1. this kind of handheld type rod-type is decided and is turned round wind and criticize, insert the inside of mounting box along the card hole with the application of force pole, put the application of force pole during the use and armpit within a definite time, can use in a flexible way, make the body of deciding to turn round the wind and criticize the screw and push down, arouse the wind and criticize rotatoryly, when reaching preset's torsion, built-in clutch automatic cutout power, work is accomplished, the design of application of force pole can one-hand carry out the one-hand usefulness of moment of torsion more than 20 nm, the usage is extensive, accurate definite torsion control, the precision is high, high work efficiency, torsion output is stable.
2. This kind of handheld type rod-type is decided and is turned round wind and criticized, drive first gear through rotatory knob and rotate, first gear drives rather than the joggled ring gear and rotates, the rotatory in-process of ring gear drives its four side joggled second gear simultaneously respectively and rotates, so that the second gear drives and moves rather than the rack plate of meshing to the inside direction of mounting box, make the rack plate drive the card post insert in the spacing hole of seting up on the application of force pole, reach the effect of the fixed application of force pole of installation, not only make the more firm of application of force pole installation, and the installation is simple, be convenient for carry out the dismouting to the application of force pole of different positions.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of a force application rod mounting structure of a handheld rod type fixed-torque air screwdriver according to the present invention;
FIG. 2 is a schematic view of the internal structure of a mounting box of a handheld rod type fixed-torque screwdriver according to the present invention;
FIG. 3 is an enlarged schematic view of part A of FIG. 2 of a hand-held rod-type torque-fixing screwdriver according to the present invention;
FIG. 4 is a schematic view of a stress application rod limiting hole structure of the hand-held rod type fixed-torque screwdriver of the present invention.
In the figure: 1. a fixed-torque air screwdriver body; 2. installing a sleeve; 3. mounting a box; 4. clamping holes; 5. a toothed ring; 6. a first gear; 7. a shaft lever; 8. a knob; 9. a second gear; 10. a through hole; 11. A rack plate; 12. clamping the column; 13. a stressing rod; 14. and a limiting hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-4, the handheld rod type constant-torque screwdriver comprises a constant-torque screwdriver body 1, wherein a mounting sleeve 2 is fixedly arranged outside the constant-torque screwdriver body 1, mounting boxes 3 are respectively arranged on four side surfaces of the mounting sleeve 2, a clamping hole 4 is formed in the outer surface of each mounting box 3, a force applying rod 13 is connected inside each clamping hole 4 in a penetrating manner, a toothed ring 5 is movably connected inside each mounting box 3, a first gear 6 is meshed with the outer side of each toothed ring 5, second gears 9 are respectively and movably connected on the edges of the inner walls of the four sides of each mounting box 3, through holes 10 are respectively formed in the inner walls of the four sides of each mounting box 3, a rack plate 11 is meshed with the inner part of each through hole 10, and a clamping column 12 is fixedly connected on the inner side of each mounting box 3 at one end of each rack plate 11.
Wherein, the outer surface of the first gear 6 is fixedly connected with a shaft lever 7, one end of the shaft lever 7 extends to the outer part of the mounting box 3 and is fixedly connected with a knob 8, the second gear 9 and the toothed ring 5 are engaged with each other, the diameter of the toothed ring 5 is larger than that of the first gear 6, the diameter of the first gear 6 is larger than that of the second gear 9, the first gear 6 and the knob 8 are both positioned at one side corner of the mounting box 3, the shaft lever 7 is in threaded connection with the mounting box 3, the knob 8 is rotated and drives the first gear 6 to rotate, the first gear 6 drives the toothed ring 5 engaged with the first gear 6 to rotate, the toothed ring 5 simultaneously drives the second gear 9 engaged with the four sides to rotate in the rotating process, so that the second gear 9 drives the rack plate 11 engaged with the second gear to move towards the inner direction of the mounting box 3, and the rack plate 11 drives the clamping column 12 to be inserted into a limit hole 14 arranged on the reinforcing rod 13, reach the effect of the fixed grider 13 of installation, not only make more firm of grider 13 installation, the installation is simple moreover, is convenient for carry out the dismouting to the grider 13 of different positions.
Wherein, rack plate 11 and card post 12 all are located the outside position of ring gear 5, and be equipped with the clearance between rack plate 11 and card post 12 and the ring gear 5, rack plate 11 and card post 12 are stainless steel, card post 12 is cylindrical structure, four spacing holes 14 have been seted up to the one end equidistance of afterburning pole 13, the activity of card post 12 runs through the inside at spacing hole 14, put afterburning pole 13 during the use and armpit within a definite time, can use in a flexible way, make the fixed torsion wind criticize the body 1 and push down the screw, arouse the wind and criticize the rotation, when reaching preset's torsion, built-in clutch automatic cutout power, the work is accomplished, accurate fixed torsion control, the precision is high.
The working principle is as follows: the force applying rod 13 is inserted into the mounting box 3 along the clamping hole 4, then the knob 8 is rotated to drive the first gear 6 to rotate, the first gear 6 drives the toothed ring 5 engaged with the first gear to rotate, the toothed ring 5 simultaneously drives the second gear 9 engaged with the four sides of the toothed ring to rotate in the rotating process, so that the second gear 9 drives the rack plate 11 engaged with the second gear to move towards the inner direction of the mounting box 3, the rack plate 11 drives the clamping column 12 to be inserted into the limiting hole 14 formed in the force applying rod 13, the effect of mounting and fixing the force applying rod 13 is achieved, the force applying rod 13 is more firmly mounted, the mounting process is simple, the force applying rod 13 at different positions can be conveniently dismounted, the force applying rod 13 is placed between armpits during use, the force applying rod can be flexibly used, the fixed-torque air screwdriver body 1 is pressed down against the aligning screw, the air screwdriver is excited to rotate, and when the preset torque force is achieved, the built-in clutch device automatically cuts off power, work is completed, the design of the stress application rod 13 can be used by one hand for single-hand holding with the torque of more than 20 Nm, the application is wide, accurate constant torque force control is achieved, the precision is high, the work efficiency is high, and the torque force output is stable.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 by those skilled in the art according to specific situations. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A handheld rod type constant-torque screwdriver comprises a constant-torque screwdriver body (1) and is characterized in that a mounting sleeve (2) is fixedly arranged outside the constant-torque screwdriver body (1), mounting boxes (3) are arranged on the surfaces of four sides of the mounting sleeve (2), a clamping hole (4) is formed in the outer surface of each mounting box (3), a force applying rod (13) is connected inside the clamping hole (4) in a penetrating manner, a toothed ring (5) is movably connected inside the mounting box (3), a first gear (6) is meshed with the outer side of the toothed ring (5), second gears (9) are movably connected on the edges of the inner walls of the four sides of the mounting box (3), through holes (10) are formed in the inner sides, located on the second gears (9), of the inner walls of the four sides of the mounting box (3), and rack plates (11) are meshed with the inner sides, running through the through holes (10), of the second gears (9), one end of the rack plate (11) is positioned on the inner side of the mounting box (3) and is fixedly connected with a clamping column (12).
2. A hand-held lever-type fixed-torque screwdriver according to claim 1, wherein a shaft (7) is fixedly connected to the outer surface of the first gear (6), and one end of the shaft (7) extends to the outer portion of the mounting box (3) and is fixedly connected with a knob (8).
3. A hand-held lever-type torque-fixing screwdriver according to claim 1, wherein the second gear (9) is engaged with the toothed ring (5), the diameter of the toothed ring (5) is larger than that of the first gear (6), and the diameter of the first gear (6) is larger than that of the second gear (9).
4. A hand-held lever-type torque-fixing screwdriver according to claim 2, wherein the first gear (6) and the knob (8) are both located at one corner of the mounting box (3), and the shaft (7) is in threaded connection with the mounting box (3).
5. A hand-held rod-type torque-fixing screwdriver according to claim 1, wherein the rack plate (11) and the clamping column (12) are both located at the outer side of the toothed ring (5), and a gap is formed between the rack plate (11) and the clamping column (12) and the toothed ring (5).
6. A hand-held rod-type torque-fixing screwdriver according to claim 1, wherein the rack plate (11) and the clamping column (12) are made of stainless steel, and the clamping column (12) is of a cylindrical structure.
7. The hand-held rod-type fixed-torque screwdriver according to claim 1, wherein four limiting holes (14) are formed in one end of the forcing rod (13) at equal intervals, and the clamping column (12) movably penetrates through the limiting holes (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122661330.3U CN216991695U (en) | 2021-11-02 | 2021-11-02 | Handheld rod type fixed-torque screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122661330.3U CN216991695U (en) | 2021-11-02 | 2021-11-02 | Handheld rod type fixed-torque screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216991695U true CN216991695U (en) | 2022-07-19 |
Family
ID=82378990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122661330.3U Expired - Fee Related CN216991695U (en) | 2021-11-02 | 2021-11-02 | Handheld rod type fixed-torque screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216991695U (en) |
-
2021
- 2021-11-02 CN CN202122661330.3U patent/CN216991695U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220719 |