CN116276750A - Tool for tightening SMA cable fastening nut - Google Patents
Tool for tightening SMA cable fastening nut Download PDFInfo
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- CN116276750A CN116276750A CN202111560470.XA CN202111560470A CN116276750A CN 116276750 A CN116276750 A CN 116276750A CN 202111560470 A CN202111560470 A CN 202111560470A CN 116276750 A CN116276750 A CN 116276750A
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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
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
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Abstract
The invention provides a tool for tightening an SMA cable fastening nut, which comprises a fixed plate, wherein a first gear is arranged on the fixed plate and can rotate relative to the fixed plate; the first gear is provided with a first accommodating cavity and a first opening, the first accommodating cavity is communicated with the first opening, and the shape of the first accommodating cavity is matched with that of the nut and is used for fixing the nut; the driving assembly is connected with the fixing plate and used for driving the first gear to drive the nut to rotate. The invention solves the problem that the operation of rotating the fastening nut is complex when the SMA cable is fastened.
Description
Technical Field
The invention relates to the technical field of cable tools, in particular to a tool for tightening an SMA cable fastening nut.
Background
In recent years, the communication industry has been continuously developed, and in order to realize stable signal transmission, submicron a (SMA) cables are generally used in China. In practical applications, the SMA cable may also be referred to as an SMA antenna interface or SMA reverse male head.
The end of the SMA cable typically includes an anchor nut, a compression screw, and a cable body that requires manual tightening of the anchor nut using a wrench when assembling the SMA cable to achieve locking of the cable body. However, SMA cables are usually arranged tightly and in a small space, and in the process of tightening the anchor nut, since the existing wrench is difficult to rotate, the wrench is usually bent manually to rotate the anchor nut.
As is clear from this, the prior art has a problem that the operation of rotating the nut at the time of fastening the cable is complicated.
Disclosure of Invention
The embodiment of the invention provides a tool for tightening an SMA cable fastening nut, which aims to solve the problem that the operation of rotating the fastening nut is complex when an SMA cable is fastened.
To achieve the above object, an embodiment of the present invention provides a tool for tightening an SMA cable tightening nut, including:
the fixing plate is provided with a first gear, and the first gear can rotate relative to the fixing plate; the first gear is provided with a first accommodating cavity and a first opening, the first accommodating cavity is communicated with the first opening, and the shape of the first accommodating cavity is matched with that of the nut and is used for fixing the nut;
the driving assembly is connected with the fixing plate and used for driving the first gear to drive the nut to rotate.
Optionally, a second gear is further arranged on the fixed plate, and the second gear can rotate relative to the fixed plate, and is meshed with the first gear;
the tool for tightening the SMA cable fastening nut further comprises a transmission shaft, one end of the transmission shaft is connected with the second gear, the other end of the transmission shaft is connected with the driving assembly, and the transmission shaft is used for driving the second gear to drive the first gear to rotate under the action of the driving assembly.
Optionally, the fixing plate is further provided with:
a third gear rotatable with respect to the fixed plate; the third gear is meshed with the first gear and the second gear, and the contact position of the third gear and the first gear is a first contact point;
a fourth gear rotatable with respect to the fixed plate; the fourth gear is meshed with both the first gear and the second gear; the contact position of the fourth gear and the first gear is a second contact point;
a circumferential angle of a distance between the first contact point and the second contact point opposite to a rotation center of the first gear is a first circumferential angle; a circumferential angle of the first opening opposite to a rotation center of the first gear is a second circumferential angle; wherein the first circumferential angle is greater than the second circumferential angle.
Optionally, a stop component is further arranged on the fixed plate, and the stop component is connected with the target gear and is used for limiting the rotation stroke of the target gear to exceed a preset value; wherein the target gear is any one of the first gear, the second gear, the third gear, and the fourth gear.
Optionally, the stop assembly includes a stop lever, a first end of the stop lever being connected to the fixed plate, a second end of the stop lever being movable relative to the fixed plate;
when the rotation stroke of the target gear reaches the preset value, the second end of the stop lever is positioned at a target position and abuts against the target gear so as to limit the rotation of the target gear.
Optionally, the stop assembly further comprises an elastic piece, one end of the elastic piece is connected with the fixed plate, and the other end of the elastic piece is connected with the second end of the stop rod; the elastic piece is used for driving the second end of the stop rod to move to the target position.
Optionally, the second gear includes:
a sub gear engaged with both the third gear and the fourth gear;
the limiting piece is connected with the sub-gear; when the second end of the stop lever is positioned at the target position, the stop lever is abutted with the limiting piece so as to limit the rotation of the sub-gear.
Optionally, the tool for tightening the SMA cable fastening nut further comprises a torque detection assembly electrically connected to the drive shaft for controlling rotation of the drive shaft.
Optionally, the transmission shaft is detachably connected with the second gear.
Optionally, the first gear is an aluminum alloy material.
In this embodiment, the first gear is provided with a first accommodating cavity and a first opening, the first accommodating cavity is communicated with the first opening, and the shape of the first accommodating cavity is matched with the nut for fixing the nut. When the nut is positioned in the first accommodating cavity, the first gear is driven to rotate through the driving assembly, so that the nut is driven to rotate, and when the nut is specifically realized, the tightness of the nut can be adjusted by adjusting the rotation direction of the first gear. Through the arrangement, when the tightness of the nut is adjusted, only the first gear is required to be rotated, so that the convenience of operation of rotating the nut is improved. Meanwhile, the first gear is driven to rotate through the driving assembly, the first gear does not need to be manually rotated, the convenience of operation of rotating the nut is further improved, and the accuracy of adjusting tightness of the nut is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a tool for tightening an SMA cable fastening nut provided by an embodiment of the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic structural view of a fixing plate according to an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of an SMA cable in an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view taken along the direction B-B in fig. 4.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which are derived by a person skilled in the art from the embodiments according to the invention without creative efforts, fall within the protection scope of the invention.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.
As shown in fig. 1 to 3, an embodiment of the present invention provides a tool for tightening an SMA cable tightening nut, the tool for tightening an SMA cable tightening nut including:
a fixed plate 10, wherein a first gear 20 is arranged on the fixed plate 10, and the first gear 20 can rotate relative to the fixed plate 10; the first gear 20 is provided with a first accommodating cavity 201 and a first opening 202, the first accommodating cavity 201 is communicated with the first opening 202, and the shape of the first accommodating cavity 201 is matched with that of a nut for fixing the nut;
the driving assembly 20 is connected with the fixing plate 10, and the driving assembly 20 is used for driving the first gear 20 to drive the nut to rotate.
It should be appreciated that the first gear 20 is provided with a first receiving cavity 201 and a first opening 202. In some embodiments, the nut may enter the first receiving cavity 201 via the first opening 202. In this embodiment, the first opening 202 should be greater than the length of either side of the nut. In other embodiments, the relative positions of the first gear 20 and the nut are adjusted such that the vertical projection of the nut on the first gear 20 is located in the first accommodating cavity 201, and then the tool for tightening the SMA cable fastening nut is moved such that the nut is located in the first accommodating cavity 201.
It should be understood that the structure of the fixing plate 10 is not limited herein. The fixed plate 10 is provided with a first gear 20, and the first gear 20 can rotate relative to the fixed plate 10. In some embodiments, a second accommodating cavity and a second opening are formed by recessing a part of the outer surface of the fixed plate 10, wherein the vertical projection of the first accommodating cavity 201 on the fixed plate 10 is located in the second accommodating cavity, and the vertical projection of the first opening 202 on the fixed plate 10 is located in the second opening when the first gear 20 rotates to a preset position. In other embodiments, the fixing plate 10 includes a plurality of sub-fixing plates 10, where a plurality of sub-fixing plates 10 are connected to the first gear 20, and projections of a plurality of sub-fixing plates 10 on the first gear 20 are located outside the first accommodating cavity 201.
It should be understood that the specific structure of the drive assembly 20 is not limited herein. For example, in some embodiments, the drive assembly 20 is a pneumatic assembly. In other embodiments, the drive assembly 20 is an electrically powered assembly.
It should be understood that the connection manner of the driving assembly 20 and the fixing plate 10 is not limited herein. For example, in some embodiments, the drive assembly 20 is removably coupled to the stationary plate 10. In particular, the shape of the first receiving chamber 201 needs to be matched to the nut, so that different fixing plates 10 need to be used when adjusting tightness of different nuts. Through the above arrangement, the convenience of replacing the fixing plate 10 is improved, and the flexibility of the tool for tightening the SMA cable fastening nut is improved. In other embodiments, the driving assembly 20 and the fixing plate 10 are welded and fixed. By the above arrangement, the connection stability of the driving assembly 20 and the fixing plate 10 is improved.
It should be appreciated that the material of the first gear 20 is not limited herein. For example, optionally, in some embodiments, the first gear 20 is an aluminum alloy material. In this embodiment, since the first gear 20 is made of an aluminum alloy material, the impact on the nut can be reduced when the first gear 20 collides with the nut.
It should be understood that the structure of the fixing plate 10 is not limited herein. For example, in some embodiments, the fixation plate 10 is an aluminum alloy material. In this embodiment, since the fixing plate 10 is made of an aluminum alloy material, when the fixing plate 10 collides with other components, the influence on the other components can be reduced.
In this embodiment, the first gear 20 is provided with a first accommodating cavity 201 and a first opening 202, the first accommodating cavity 201 communicates with the first opening 202, and the shape of the first accommodating cavity 201 is matched with a nut for fixing the nut. When the nut is located in the first accommodating cavity 201, the driving component 20 drives the first gear 20 to rotate, so as to drive the nut to rotate, and in a specific implementation, the tightness of the nut can be adjusted by adjusting the rotation direction of the first gear 20. Through the above arrangement, when the tightness of the nut is adjusted, only the first gear 20 needs to be rotated, thereby improving the convenience of the operation of rotating the nut. Meanwhile, the first gear 20 is driven to rotate through the driving assembly 20, the first gear 20 does not need to be manually rotated, the convenience of operation of rotating the nut is further improved, and the accuracy of adjusting tightness of the nut is improved.
Optionally, as shown in fig. 3, in some embodiments, a second gear 30 is further disposed on the fixed plate 10, and the second gear 30 may rotate relative to the fixed plate 10, where the second gear 30 is meshed with the first gear 20;
the tool for tightening the SMA cable fastening nut further comprises a transmission shaft, one end of the transmission shaft is connected with the second gear 30, the other end of the transmission shaft is connected with the driving assembly 20, and the transmission shaft is used for driving the second gear 30 to drive the first gear 20 to rotate under the action of the driving assembly 20.
It should be understood that the second gear 30 is connected to both the fixed plate 10 and the transmission shaft, and the second gear 30 is rotatable with respect to the fixed plate 10. The connection manner of the second gear 30 and the fixing plate 10 is not limited herein.
It should be understood that the connection manner of the second gear 30 and the transmission shaft is not limited herein. Optionally, in some embodiments, the drive shaft is detachably connected to the second gear 30. With the above arrangement, the convenience of operation of separating the drive shaft from the second gear 30 is improved when the fixing plate 10 needs to be replaced.
It should be appreciated that the first gear 20 is designed according to the specifications of different nuts, thereby adjusting the tightness of the nuts of different specifications. In particular, each size of the first gear 20 corresponds to a corresponding fixed plate 10. Therefore, the fixing plate 10 is replaced by the whole when the first gear 20 is replaced. The tool for tightening the SMA cable fastening nut provided in this embodiment can be easily assembled and disassembled to be placed on various types of equipment bodies by replacing the fixing plate 10
It should be understood that the material of the drive shaft is not limited herein. For example, in some embodiments, the drive shaft is a stainless steel material. Still further, the drive shaft is 304 stainless steel material. Because 304 stainless steel possesses the characteristics such as processability is good, toughness is high, high temperature resistant corrosion-resistant and rigidity is big, through above-mentioned setting, not only can guarantee the rigidity of transmission shaft, can also prolong the life of transmission shaft.
It should be appreciated that in some embodiments, the tool for tightening SMA cable tightening nuts further comprises a housing, the protective shell and the drive shaft may also be referred to as a crossover joint. In this embodiment, the protective case may be connected to the fixing plate 10. Further, the housing is detachably connected to the fixing plate 10.
In this embodiment, the fixing plate 10 is further provided with a second gear 30, and the tool for tightening the SMA cable fastening nut further includes a transmission shaft. The driving assembly 20 drives the first gear 20 to rotate through the second gear 30 and the driving shaft. By the arrangement, the influence of the direct driving of the first gear 20 by the driving assembly 20 on the first gear 20 is reduced.
Optionally, as shown in fig. 3, in some embodiments, the fixing plate 10 is further provided with:
a third gear 40, the third gear 40 being rotatable with respect to the fixed plate 10; the third gear 40 is meshed with both the first gear 20 and the second gear 30, and the contact position of the third gear 40 and the first gear 20 is a first contact point;
a fourth gear 50, the fourth gear 50 being rotatable with respect to the fixed plate 10; the fourth gear 50 is meshed with both the first gear 20 and the second gear 30; the contact position between the fourth gear 50 and the first gear 20 is a second contact point;
a circumferential angle of a distance between the first contact point and the second contact point opposite to a rotation center of the first gear 20 is a first circumferential angle; a circumferential angle of the first opening 202 opposite to the rotation center of the first gear 20 is a second circumferential angle; wherein the first circumferential angle is greater than the second circumferential angle.
It should be understood that the fixed plate 10 is further provided with a third gear 40 and a fourth gear 50, and that the third gear 40 and the fourth gear 50 can rotate relative to the fixed plate 10. The connection between the third gear 40 and the fourth gear 50 and the fixing plate 10 is not limited herein.
It should be understood that the third gear 40 is engaged with both the first gear 20 and the second gear 30, and that the third gear 40 is positioned between the first gear 20 and the second gear 30 and is engaged with the first gear 20 and the second gear 30, respectively.
It should be understood that the fourth gear 50 is engaged with both the first gear 20 and the second gear 30, and that the fourth gear 50 is positioned between the first gear 20 and the second gear 30 and is engaged with the first gear 20 and the second gear 30, respectively.
In this embodiment, the fixing plate 10 is further provided with a third gear 40 and a fourth gear 50. The driving assembly 20 drives the second gear 30 to rotate through the transmission shaft, and since the third gear 40 and the fourth gear 50 are engaged with the second gear 30 and the third gear 40 and the fourth gear 50 are engaged with the first gear 20, the third gear 40 and the fourth gear 50 will rotate in synchronization with the second gear 30 and drive the first gear 20 to rotate.
The first gear 20 is provided with a first opening 202, and the third gear 40 is not in contact with the first gear 20 when the first gear 20 rotates to a position where the first opening 202 corresponds to the third gear 40. Since the first circumferential angle is larger than the second circumferential angle, the fourth gear 50 is in contact with and engaged with the first gear 20 at this time, and thus the fourth gear 50 can push the first gear 20 to continue rotating. Similarly, when the first gear 20 rotates to a position corresponding to the first opening 202 and the fourth gear 50, the fourth gear 50 is not in contact with the first gear 20, and the third gear 40 may push the first gear 20 to rotate continuously.
In the present embodiment, the first gear 20 is always in contact with at least one of the third gear 40 and the fourth gear 50 when rotated. With the above arrangement, when the first gear 20 rotates to the first opening 202 corresponding to any one of the third gear 40 or the fourth gear 50, the other can push the first gear 20 to continue rotating, so as to ensure the rotation continuity of the first gear 20.
Optionally, in some embodiments, a stop assembly 60 is further disposed on the fixed plate 10, and the stop assembly 60 is connected to the target gear, so as to limit the rotation stroke of the target gear to exceed a preset value; wherein the target gear is any one of the first gear 20, the second gear 30, the third gear 40 and the fourth gear 50.
It should be understood that the target gear is any one of the first gear 20, the second gear 30, the third gear 40, and the fourth gear 50. In some embodiments, the target gear may also be at least one of the first gear 20, the second gear 30, the third gear 40, and the fourth gear 50.
It should be appreciated that the first gear 20 is meshed with both the third gear 40 and the fourth gear 50, and that both the third gear 40 and the fourth gear 50 are meshed with the second gear 30. When the target gear stops rotating, the rotation of the gear meshed with the target gear is limited, so that the purpose of limiting the rotation of the first gear 20 is achieved.
It should be appreciated that the stop assembly 60 is configured to limit the rotational travel of the target gear beyond a predetermined value, and it is understood that the stop assembly 60 will limit the continued rotation of the target gear when the rotational travel of the target gear in the predetermined direction reaches a predetermined value. The preset value can be adjusted according to actual requirements.
It should be appreciated that the structure of the stop assembly 60 is not limited herein. Optionally, in some embodiments, the stop assembly 60 includes a stop lever 601, a first end of the stop lever 601 being connected to the fixed plate 10, a second end of the stop lever 601 being movable relative to the fixed plate 10;
when the rotational stroke of the target gear reaches the preset value, the second end of the stop lever 601 is located at a target position and abuts against the target gear to limit the rotation of the target gear.
It will be appreciated that when the rotational travel of the target gear reaches a preset value, the second end of the stop lever 601 is located at a target position and abuts the target gear. When the rotational stroke of the target gear does not reach the preset value, the second end of the stop lever 601 is located at a position other than the target position, and the target gear can be normally rotated.
It should be appreciated that the specific manner in which the second end of the stop rod 601 moves relative to the fixed plate 10 is not limited herein. Optionally, in some embodiments, the stop assembly 60 further includes an elastic member 602, one end of the elastic member 602 is connected to the fixing plate 10, and the other end is connected to the second end of the stop rod 601; the elastic member 602 is used to drive the second end of the stop rod 601 to move to the target position.
It should be understood that the elastic member 602 is used to drive the second end of the stop lever 601 to move to the target position, and it is understood that when the rotational stroke of the target gear does not reach a preset value, the elastic member 602 is in a stretched state or a compressed state and applies a force to the second end of the stop lever 601 to push the second end of the stop lever 601 to move to the target position. The setting of the target position is not limited herein.
Optionally, in some embodiments, the second gear 30 includes:
a sub-gear 301, the sub-gear 301 being meshed with both the third gear 40 and the fourth gear 50;
a limiting piece 302, wherein the limiting piece 302 is connected with the sub gear 301; when the second end of the stop lever 601 is located at the target position, the stop lever 601 abuts against the limiting member 302 to limit the rotation of the sub gear 301.
It should be understood that the specific connection manner between the limiting member 302 and the sub-gear 301 is not limited herein. For example, in some embodiments, the stop 302 is integrally formed with the pinion 301. In other embodiments, the stop 302 is welded to the pinion 301.
It should be appreciated that as the pinion 301 rotates, the limiter 302 also rotates synchronously. Therefore, when the stopper rod 601 abuts against the stopper 302, the stopper rod 601 can restrict the rotation of the sub gear 301 by restricting the rotation of the stopper 302.
It should be understood that in this embodiment, the transmission shaft may be connected to at least one of the sub gear 301 and the stopper 302. The connection manner between the transmission shaft and the sub-gear 301 is not limited herein. The connection manner of the transmission shaft and the limiting member 302 is not limited herein.
The movement of the stopper rod 601 will be described with reference to fig. 3. As shown in fig. 3, the target gear is set as the second gear 30, and the preset value of the rotation stroke is one rotation counterclockwise with the position of the second gear 30 in fig. 3 as the starting point. When the second gear 30 rotates clockwise, the stopper 302 pushes the stopper 601 to move away from the second gear 30, the stopper 601 compresses the elastic member 602, and the second gear 30 rotates clockwise without being limited by the stopper 601. When the second gear 30 rotates counterclockwise, the stopper rod 601 moves to the target position under the pushing of the elastic member 602. In this embodiment, the second end of the stop rod 601 is located at the target position, which is understood that the stop rod 601 is horizontally disposed, and the stop member 302 abuts against the stop rod 601, and the stop member 302 cannot continue to rotate, so that the second gear 30 stops rotating.
In this embodiment, the second gear 30 includes a sub-gear 301 and a limiting member 302, and when the second end of the stop lever 601 is located at the target position, the stop lever 601 abuts against the limiting member 302 to limit the rotation of the sub-gear 301, and further limit the stop of the rotation of the first gear 20. With the above arrangement, only the stopper rod 601 is in contact with the stopper 302, thereby reducing the influence of the stopper rod 601 on the rotation of the sub gear 301.
Optionally, in some embodiments, the tool for tightening the SMA cable tightening nut further comprises a torque detection assembly electrically connected to the drive shaft for controlling rotation of the drive shaft.
In this embodiment, the torque detecting assembly is used to control the rotation of the transmission shaft, and it is understood that the torque detecting assembly may be used to detect a tightening torque, and when the tightening torque reaches a preset torque value, the torque detecting assembly may control the transmission shaft to stop rotating, so as to control the first gear 20 to stop rotating.
It will be appreciated that in some embodiments, the torque detection assembly comprises an electrically connected detection element for detecting the tightening torque and transmitting the detected tightening torque to a controller which may control rotation of the drive shaft in dependence on the tightening torque. Still further, the torque detection assembly further includes a display device electrically connected to the controller, the display device being configured to display the tightening torque. In a specific implementation, the controller may automatically record and save the nut tightening information to form a file that may be reviewed in the system display and exported as tabular data.
In this embodiment, the tool for tightening the SMA cable fastening nut further includes a torque detection assembly, and by the arrangement of the torque detection assembly, the tightening torque can be monitored in real time, so that accuracy in adjusting tightness of the nut is improved.
The tool for tightening the SMA cable fastening nut provided in this embodiment may be used to disassemble the nut, install the nut, or adjust the tightness of the nut. A specific process of fastening the SMA cable using the tool for fastening the SMA cable fastening nut provided in this embodiment will be described below by taking the SMA cable as an example. The structural schematic diagram of the SMA cable in this embodiment can be seen in fig. 4 and 5. In this embodiment, the use of the tool for tightening the SMA cable tightening nut to tighten the SMA cable is understood to mean that the SMA cable body 2 is tightened by tightening the anchor nut 1 of the SMA cable using the tool for tightening the SMA cable tightening nut, typically the SMA cable body 2 has a diameter smaller than the diameter of the anchor nut 1.
In actual use, the user first adjusts the position of the tool for tightening the SMA cable fastening nut so that the SMA cable body 2 passes through the first opening 202 and is located in the first accommodating cavity 201. The user then moves the tool for tightening the SMA cable tightening nut in the direction of the anchor nut 1 so that the anchor nut 1 is located in the first receiving cavity 201. After the anchor nut 1 is secured, the user may activate the drive assembly 20 to rotate in a forward direction. The driving assembly 20 drives the second gear 30 to rotate through the transmission shaft, and the second gear 30 pushes the first gear 20 to rotate clockwise through the third gear 40 and the fourth gear 50. The first gear 20 rotates to drive the anchor nut 1 to rotate, thereby tightening the anchor nut 1. The detection element may detect the tightening torque and transmit the detected tightening torque to the controller. When the tightening torque reaches a preset torque value, the controller controls the transmission shaft to stop rotating, so that the first gear 20 stops rotating, and the anchoring nut 1 can be considered to be tightened.
Since SMA cables are typically closely aligned, the first gear 20 needs to be rotated to an initial position in order to remove the tool for tightening the SMA cable tightening nuts. At this time, the user moves the tool for tightening the SMA cable tightening nut, and moves the first gear 20 in the direction of the SMA cable body 2. Such that the first gear 20 is out of contact with the anchor nut 1 and then the drive assembly 20 is activated to reverse rotation, thereby causing the first gear 20 to rotate counter-clockwise. Since the stopper rod 601 is provided in the present embodiment, the first gear 20 rotates less than one turn in the counterclockwise direction, avoiding the first gear 20 from idling for a plurality of turns. After the first gear 20 is rotated to the initial position, the user may remove the tool for tightening the SMA cable tightening nut. In this embodiment, the initial position is a position where the first gear 20 is located when the user passes the SMA cable body 2 through the first opening 202 and is located in the first accommodating cavity 201.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. A tool for tightening SMA cable tightening nuts, comprising:
the fixing plate is provided with a first gear, and the first gear can rotate relative to the fixing plate; the first gear is provided with a first accommodating cavity and a first opening, the first accommodating cavity is communicated with the first opening, and the shape of the first accommodating cavity is matched with that of the nut and is used for fixing the nut;
the driving assembly is connected with the fixing plate and used for driving the first gear to drive the nut to rotate.
2. The tool for tightening SMA cable tightening nuts as claimed in claim 1, wherein a second gear is further provided on said fixed plate, and said second gear is rotatable relative to said fixed plate, said second gear being in engagement with said first gear;
the tool for tightening the SMA cable fastening nut further comprises a transmission shaft, one end of the transmission shaft is connected with the second gear, the other end of the transmission shaft is connected with the driving assembly, and the transmission shaft is used for driving the second gear to drive the first gear to rotate under the action of the driving assembly.
3. The tool for tightening SMA cable tightening nuts as claimed in claim 2, wherein said fixing plate is further provided with:
a third gear rotatable with respect to the fixed plate; the third gear is meshed with the first gear and the second gear, and the contact position of the third gear and the first gear is a first contact point;
a fourth gear rotatable with respect to the fixed plate; the fourth gear is meshed with both the first gear and the second gear; the contact position of the fourth gear and the first gear is a second contact point;
a circumferential angle of a distance between the first contact point and the second contact point opposite to a rotation center of the first gear is a first circumferential angle; a circumferential angle of the first opening opposite to a rotation center of the first gear is a second circumferential angle; wherein the first circumferential angle is greater than the second circumferential angle.
4. A tool for tightening SMA cable tightening nuts as claimed in claim 3, wherein said fixed plate is further provided with a stop assembly connected to a target gear for limiting the rotational travel of said target gear beyond a preset value; wherein the target gear is any one of the first gear, the second gear, the third gear, and the fourth gear.
5. The tool for tightening an SMA cable tightening nut of claim 4, wherein the stop assembly comprises a stop lever having a first end connected to the fixed plate and a second end movable relative to the fixed plate;
when the rotation stroke of the target gear reaches the preset value, the second end of the stop lever is positioned at a target position and abuts against the target gear so as to limit the rotation of the target gear.
6. The tool for tightening an SMA cable tightening nut of claim 5, wherein the stop assembly further comprises a resilient member having one end connected to the fixed plate and the other end connected to the second end of the stop lever; the elastic piece is used for driving the second end of the stop rod to move to the target position.
7. The tool for tightening an SMA cable tightening nut of claim 5, wherein the second gear comprises:
a sub gear engaged with both the third gear and the fourth gear;
the limiting piece is connected with the sub-gear; when the second end of the stop lever is positioned at the target position, the stop lever is abutted with the limiting piece so as to limit the rotation of the sub-gear.
8. The tool for tightening an SMA cable tightening nut of claim 2, further comprising a torque detection assembly electrically connected to the drive shaft for controlling rotation of the drive shaft.
9. A tool for tightening SMA cable tightening nuts as claimed in any one of claims 2 to 8, wherein said drive shaft is detachably connected to said second gear.
10. A tool for tightening SMA cable tightening nuts as claimed in any one of claims 1 to 8, wherein said first gear is of aluminium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111560470.XA CN116276750A (en) | 2021-12-20 | 2021-12-20 | Tool for tightening SMA cable fastening nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111560470.XA CN116276750A (en) | 2021-12-20 | 2021-12-20 | Tool for tightening SMA cable fastening nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116276750A true CN116276750A (en) | 2023-06-23 |
Family
ID=86827343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111560470.XA Pending CN116276750A (en) | 2021-12-20 | 2021-12-20 | Tool for tightening SMA cable fastening nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116276750A (en) |
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2021
- 2021-12-20 CN CN202111560470.XA patent/CN116276750A/en active Pending
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