CN111515900B - Nut fastening device for power grid maintenance - Google Patents
Nut fastening device for power grid maintenance Download PDFInfo
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- CN111515900B CN111515900B CN202010297027.7A CN202010297027A CN111515900B CN 111515900 B CN111515900 B CN 111515900B CN 202010297027 A CN202010297027 A CN 202010297027A CN 111515900 B CN111515900 B CN 111515900B
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- fastening
- screw
- sleeve
- rod
- fastened
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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
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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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
- B25B29/00—Accessories
- B25B29/02—Bolt tensioners
Abstract
The invention discloses a nut fastening device for power grid maintenance, which comprises a fastening device for fastening a screw and a nut and a fixing structure for placing and fixing the fastening device, wherein the fastening device comprises a fastening rod, a hand-holding sleeve sleeved outside the fastening rod, a rotating rod connected to the lower end of the fastening rod and a fastening sleeve in threaded connection with the lower end of the rotating rod, the bottom end of the fastening sleeve is provided with a fastening clamping groove matched with a screw to be fastened, a containing cavity for containing the fastening rod is arranged inside the hand-holding sleeve, a clamping assembly is correspondingly arranged between the hand-holding sleeve and the fastening rod, the front side wall and the rear side wall of the fastening rod are provided with containing grooves which are vertically arranged, the top end of the rotary rod is hinged with the rotary cross rod, under the conditions of labor waste in the installation process and inconvenient single-hand operation, the fastening device is fixed by the fixing structure, so that the screw fixing structure is suitable for screw installation and fastening under different conditions.
Description
Technical Field
The invention relates to the field of electric power construction, in particular to a nut fastening device for power grid maintenance.
Background
At present, the screws are often required to be disassembled and assembled in the power grid maintenance process. If the screw is a small cross-thread screw or a straight-thread screw, a corresponding cross-thread or straight-thread screwdriver needs to be used, and if the screw is a hexagonal screw, a fixed-type wrench or a movable wrench needs to be used for dismounting. Generally, under the condition that the screw is less, the installation of screw can be realized to staff one hand use screw assembly and disassembly tools, and in the face of large-scale screw, the fastening degree of its connection often is great, need use great power just to accomplish the dismouting fastening of screw, one-hand operation is too inconvenient, probably need both hands operation, but because when carrying out the screw dismouting, need guarantee screw assembly and disassembly tools and screw just right, this process needs the staff to hold the hand, conflict with the process of both hands operation screw fastening, influenced going on smoothly of whole screw dismouting process, bring inconvenience for the staff.
Disclosure of Invention
The invention aims to provide a nut fastening device for power grid maintenance, which can solve the problems that the connection fastening degree of the existing large-scale screw is often larger, the screw can be disassembled and fastened only by using larger force, the single-hand operation is too inconvenient, and the double-hand operation is possibly needed, but when the screw is disassembled and assembled, a screw disassembling tool needs to be ensured to be right opposite to the screw, the process needs to be held by a worker and conflicts with the process of fastening the screw by using double hands, the smooth operation of the whole screw disassembling and assembling process is influenced, and the inconvenience is brought to the worker.
The purpose of the invention can be realized by the following technical scheme: a nut fastening device for power grid maintenance comprises a fastening device for fastening a screw and a nut and a fixing structure for placing and fixing the fastening device;
the fastening device comprises a fastening rod, a hand-holding sleeve sleeved outside the fastening rod, a rotating rod connected to the lower end of the fastening rod, and a fastening sleeve in threaded connection with the lower end of the rotating rod, wherein a fastening clamping groove matched with a screw to be fastened is formed in the bottom end of the fastening sleeve, vertical limiting strips are arranged on the left side wall and the right side wall of the fastening rod, a containing cavity used for containing the fastening rod is formed in the hand-holding sleeve, the lower end of the containing cavity is open, limiting cavities used for containing the vertical limiting strips are formed in two sides of the containing cavity, clamping assemblies are correspondingly arranged between the hand-holding sleeve and the fastening rod, containing grooves are formed in the front side wall and the rear side wall of the fastening rod, the containing grooves are vertically arranged, and rotating cross rods are hinged to the top ends of the containing grooves;
the fixing structure comprises a vertically arranged fixing sleeve, the rotating rod penetrates through the fixing sleeve, a plurality of fixing frames are connected to the outside of the fixing sleeve, the fixing frames are uniformly arranged at equal intervals, the tail end of each fixing frame is bent downwards to form a supporting arm, a fixing seat is arranged at the bottom of each supporting arm, a balancing weight is arranged on each fixing seat, and a vacuum sucker is arranged at the bottom of each balancing weight;
the fixing base is further connected with a clamping base, a fixing clamp is mounted on the lower surface of the clamping base, a connecting rod is arranged on the upper end face of the clamping base, a permanent magnet is arranged at the top of the connecting rod, a vertical inserting hole is formed in the center of the bottom of the balancing weight, a fixing magnet is arranged at the top of the vertical inserting hole, the connecting rod is inserted into the vertical inserting hole, and the permanent magnet and the fixing magnet are in contact and attracted together.
Furthermore, the top of the hand-holding sleeve is provided with a special-shaped sleeve which is in a cross shape.
Further, the chucking subassembly is including encircleing the setting and being in the last tight groove that presss from both sides of anchorage bar pole body, it is located to press from both sides tight groove the lowermost end of anchorage bar, it is provided with elasticity clamping sleeve to press from both sides tight inslot, the thickness of elasticity clamping sleeve is from last to grow gradually down, wherein the thickness of the top of elasticity clamping sleeve with the degree of depth in tight groove equals.
Further, a supporting spring is arranged between the rotating cross rod and the accommodating groove.
Further, the rotating cross rod and the accommodating groove are provided with a telescopic rod, one end of the telescopic rod is hinged to the rotating cross rod, the other end of the telescopic rod is hinged to the accommodating groove, and the telescopic rod penetrates through the supporting spring.
Further, the dwang is the round bar, fixed sleeve be the drum and its internal diameter with the internal diameter of dwang equals, the diameter of fastening rod is greater than the diameter of dwang, the diameter of fastening sleeve is greater than the diameter of dwang.
The embodiment also provides a use method of the nut fastening device for power grid maintenance, which comprises the following steps:
step one, selecting a fastening sleeve according to the type and the size of a screw to be fastened, wherein a fastening clamping groove on the lower end face of the fastening sleeve can be sleeved on the screw to be fastened, and the screw to be fastened is driven to rotate through the fastening clamping groove when the fastening sleeve is rotated;
step two, using a nut fastening device to fasten the screw to be fastened in a rotating way: according to the size of a screw to be fastened, the difficulty of the next installation process is judged, and the two situations can be divided into two situations, namely firstly, the installation process is simple and convenient, the force application is small, the screw can be fastened by one hand, secondly, the installation process is labor-consuming, the operation by one hand is inconvenient, and the operation by two hands is needed;
under the condition of single-hand operation, the fastening sleeve is arranged on the rotating rod, then the rotating rod is lifted, the fastening sleeve is buckled on the screw to be fastened, the upper end of the screw to be fastened is embedded into the fastening clamping groove, a single-hand finger is inserted into a gap of the cross-shaped special-shaped sleeve, the sleeve is held by a hand in a rotating mode, and the rotating rod is driven to rotate and fasten the screw to be fastened;
under the condition that one-hand operation is inconvenient and two-hand operation is needed, the fixing structure is placed near the screw to be fastened, the fixing sleeve faces the screw to be fastened, the rotating rod is inserted into and penetrates through the fixing sleeve, then the fastening sleeve is connected, the fastening sleeve is buckled on the screw to be fastened, the upper end of the screw to be fastened is embedded into the fastening clamping groove, then the hand-holding sleeve is pulled upwards, the hand-holding sleeve is separated from the fastening rod, the rotating cross rod is stretched under the elastic action of the supporting spring, the fastening rod and the rotating cross rod form a cross structure, two hands respectively hold one rotating cross rod, and force is applied to rotate together to enable the screw to be fastened to rotate and fasten.
Further, the specific process of the two-hand operation in the step two is as follows: selecting the placing position of the fixing structure according to the position of the screw to be fastened, when the periphery of the screw to be fastened is flat, smooth and airtight, fixing the fixing structure by using a vacuum chuck, matching the weight of a balancing weight with the weight of other parts to enable the vacuum chuck to be tightly pressed on a plane around the screw to be fastened, and providing stable support for a fastening device arranged on the fixing structure by combining the supporting force of supporting arms in different directions; when the periphery of the screw to be fastened is flat and smooth but is ventilated, the weight of the balancing weight is matched with the weight of other parts, and the supporting force of the supporting arms in different directions is combined to provide stable support for the fastening device arranged on the fixed structure; when the periphery of the screw to be fastened is not flat and smooth enough, the fixing clamp is taken out, the connecting rod is aligned to the vertical insertion hole and inserted, the permanent magnet blocks are in contact with the fixed magnetic blocks and are attracted together, the fixing clamp is fixed on the balancing weight, the fixing clamp is used for clamping the protrusions around the screw to be fastened, the supporting force of the supporting arms in different directions is combined, and stable support is provided for the fastening device installed on the fixing structure.
The invention has the beneficial effects that:
1. when the screw fastening device is used, firstly, a fastening sleeve with a proper size is selected according to the model and the size of a screw to be fastened, the fastening clamping groove on the lower end face of the fastening sleeve can be sleeved on the screw to be fastened, the screw to be fastened is driven to rotate through the fastening clamping groove when the fastening sleeve is rotated, and then the difficulty of the next installation process is judged according to the size of the screw to be fastened;
when the installation process is simple and convenient, the force application is small, the screw can be fastened by one hand, and under the condition of operation, the fastening sleeve is installed on the rotating rod, then the rotating rod is lifted, the fastening sleeve is buckled on the screw to be fastened, the upper end of the screw to be fastened is embedded into the fastening clamping groove, one finger is inserted into the gap of the cross special-shaped sleeve, the sleeve is held by the hand in a rotating mode, the rotating rod is driven to rotate, and the screw to be fastened is fastened in a rotating mode;
when the installation process is laborious, the one-hand operation is inconvenient, and the two-hand operation is needed, the fixing structure is placed near the screw to be fastened, the fixing sleeve is enabled to face the screw to be fastened, the rotating rod is inserted into and penetrates through the fixing sleeve, then the fastening sleeve is connected, the fastening sleeve is buckled on the screw to be fastened, the upper end of the screw to be fastened is embedded into the fastening clamping groove, then the hand-holding sleeve is pulled upwards, the hand-holding sleeve is enabled to be separated from the fastening rod, the rotating cross rod is unfolded under the elastic action of the supporting spring, the fastening rod and the rotating cross rod form a cross-shaped structure, two hands respectively hold one rotating cross rod, and force is applied to rotate together to enable the screw to be fastened to rotate;
through the arrangement, when the screw is fastened by one hand, the fastening process is not too complicated compared with the operation of common screw fastening devices such as a wrench with a fixed size, and meanwhile, when the screw is fastened by two hands, the two hands can be liberated through the fixed structure, and the screw is fastened by using the two hands, so that the force can be applied more conveniently compared with the prior art, and convenience is brought to the screw fastening process;
2. when the fastening operation is carried out by using two hands, the placing position of the fixing structure is selected according to the position of the screw to be fastened, when the periphery of the screw to be fastened is flat, smooth and airtight, the fixing structure is fixed by using the vacuum chuck, the weight of the balancing weight is matched with the weight of other parts to enable the vacuum chuck to be tightly pressed on the plane around the screw to be fastened, and stable support is provided for the fastening device arranged on the fixing structure by combining the supporting force of the supporting arms in different directions; when the periphery of the screw to be fastened is flat and smooth but is ventilated, the weight of the balancing weight is matched with the weight of other parts, and the supporting force of the supporting arms in different directions is combined to provide stable support for the fastening device arranged on the fixed structure; when the periphery of the screw to be fastened is not flat and smooth enough, the fixing clamp is taken out, the connecting rod is aligned to the vertical insertion hole and inserted, so that the permanent magnet blocks are contacted with the fixing magnetic block and are attracted together, the fixing clamp is fixed on the balancing weight, the fixing clamp is used for clamping the protrusions around the screw to be fastened, and the supporting force of the supporting arms in different directions is combined to provide stable support for the fastening device arranged on the fixing structure;
through the arrangement, the permanent magnets and the fixed magnets are arranged, so that the fixing clamp can be conveniently disassembled and assembled, and the process of fixing by utilizing the balancing weight and the process of fixing by utilizing the vacuum chuck are simple, convenient and quick, so that the fixing structure of the embodiment is very simple, convenient and quick in the fixing process, and the balancing weight, the vacuum chuck and the fixing clamp are combined with each other, so that the fixing mode of the fixing structure can be more diversified, and the fixing structure can be quickly fixed under different conditions;
3. the screw fastening device can be used for screw fastening operation by one hand under the conditions of simpler and more convenient installation process, less force application and capability of one-hand fastening operation by arranging the fastening device, and the fixing structure can be used for fixing the fastening device by the fixing structure and then carrying out screw fastening operation by the fastening device under the conditions of more labor consumption and more inconvenient one-hand operation by arranging the fixing structure, so that the screw fastening device can be suitable for screw installation and fastening under different conditions.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic overall structure diagram of a nut fastening device for power grid maintenance;
FIG. 2 is a schematic view of a nut tightening device fixing structure for power grid maintenance;
FIG. 3 is a schematic structural diagram of a fastening device of a nut fastening device for power grid maintenance;
FIG. 4 is an enlarged schematic view of a nut tightening device fixing structure for power grid maintenance;
FIG. 5 is an enlarged schematic view of the structure of A in FIG. 4 according to this embodiment;
FIG. 6 is a schematic view of a hand-held sleeve structure of a nut tightening device for power grid maintenance;
FIG. 7 is a schematic view of a fastening rod of a nut fastening device for power grid maintenance;
in the figure:
1. a fastening device; 2. a fixed structure; 3. a fastening rod; 4. holding the sleeve; 5. rotating the rod; 6. fastening the sleeve; 7. fastening a clamping groove; 8. a vertical limiting strip; 9. a receiving cavity; 10. a limiting cavity; 11. a clamping assembly; 12. an elastic clamping sleeve; 13. a receiving groove; 14. rotating the cross bar; 15. a support spring; 16. a telescopic rod; 17. fixing the sleeve; 18. a fixed mount; 19. a support arm; 20. a fixed seat; 21. a balancing weight; 22. a vacuum chuck; 23. a clamping seat; 24. a fixing clip; 25. a connecting rod; 26. permanent magnet blocks; 27. a vertical plug hole; 28. a fixed magnetic block; 29. a special-shaped sleeve; 30. and clamping the groove.
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-7, a nut fastening device for power grid maintenance includes a fastening device 1 for fastening a screw and a nut, and a fixing structure 2 for placing and fixing the fastening device 1; fastening device 1 includes anchorage bar 3, the cover is established and is held sleeve 4 at 3 outside of anchorage bar, connect dwang 5 at 3 lower extremes of anchorage bar, and threaded connection is at the fastening sleeve 6 of dwang 5 lower extreme, the bottom of fastening sleeve 6 is provided with and treats fastening screw looks adaptation's fastening slot 7, put fastening sleeve 6 and push down directly over treating fastening screw when using, the upper portion embedding that makes to treat fastening screw is at fastening slot 7, can drive through fastening sleeve 6 and treat fastening screw rotation, screw.
Vertical limiting strips 8 are arranged on the left side wall and the right side wall of the fastening rod 3, a receiving cavity 9 for receiving the fastening rod 3 is arranged inside the hand-holding sleeve 4, the lower end of the receiving cavity 9 is opened, limiting cavities 10 for receiving the vertical limiting strips 8 are arranged on two sides of the receiving cavity 9, by arranging the vertical limit strips 8 and the limit cavities 10, the fastening rod 3 and the hand-held sleeve 4 cannot rotate relatively, therefore, the fastening rod 3 can be rotated by holding the sleeve 4 by hand, the top of the holding sleeve 4 is provided with the special-shaped sleeve 29, the special-shaped sleeve 29 is in a cross shape, a single finger is inserted into the gap of the cross-shaped special-shaped sleeve 29, the hand-held sleeve 4 is rotated to drive the rotating rod 5 to rotate, so that the screw to be fastened is rotated and fastened, therefore, when the nut fastening device is used, the fastening sleeve 6 covers the screw to be fastened, and the screw can be fastened by rotating the hand-holding sleeve 4 with one hand.
It is provided with chucking subassembly 11 to correspond between sleeve 4 and the anchorage bar 3 to hold, chucking subassembly 11 is including encircleing the tight groove 30 of clamp that sets up on 3 poles of anchorage bar, the tight groove 30 of clamp is located the lower extreme of anchorage bar 3, be provided with elasticity clamping sleeve 12 in the tight groove 30 of clamp, the thickness of elasticity clamping sleeve 12 is from last to grow gradually down, wherein the thickness of the top of elasticity clamping sleeve 12 equals with the degree of depth that presss from both sides tight groove 30, like this, can keep higher clamp force when holding sleeve 4 covers on anchorage bar 3, make and hold sleeve 4 covers at anchorage bar 3 even as an organic whole, no exogenic action can avoid holding sleeve 4 again and drop from anchorage bar 3.
The front side wall and the rear side wall of the fastening rod 3 are provided with accommodating grooves 13, the accommodating grooves 13 are vertically arranged, the top end of the accommodating grooves is hinged with a rotating cross rod 14, the rotating cross rod 14 can be opened, the fastening rod 3 and the rotating cross rod 14 form a cross structure, two hands respectively hold one rotating cross rod 14, force is applied to rotate together, the fastening screw is rotated and fastened, and force application can be facilitated in the operation. The supporting spring 15 is arranged between the rotating cross rod 14 and the accommodating groove 13, the supporting spring 15 is arranged, after the hand-held sleeve 4 is separated from the fastening rod 3, the rotating cross rod 14 can be automatically opened under the elastic action of the supporting spring 15, the operation is convenient, meanwhile, the telescopic rod 16 is arranged between the rotating cross rod 14 and the accommodating groove 13, one end of the telescopic rod 16 is hinged on the rotating cross rod 14, the other end of the telescopic rod is hinged in the accommodating groove 13, the telescopic rod 16 is arranged in the supporting spring 15 in a penetrating way, the telescopic rod 16 can provide a guiding effect for the extension and retraction of the supporting spring 15 by arranging the telescopic rod 16, so that a supporting force in the correct direction is provided for the support of the rotating cross rod 14, the telescopic rod 16 is of a telescopic structure, no matter how many opening angles of the rotating cross rod 14 are in the range of 0-90 degrees, the guiding effect can be provided for the supporting, the telescoping pole 16 is stretched to a maximum length and when the opening angle is 0 degrees, the telescoping pole 16 is compressed to a minimum length.
In this embodiment, the telescopic rod 16 adopts a common telescopic rod principle in the market, and therefore, the detailed description thereof is omitted. The device can be applied after being miniaturized.
Meanwhile, due to the arrangement of the clamping assembly 11 and the supporting spring 15 in the embodiment, the fastening rod 3 and the rotating cross rod 14 can quickly form a cross-shaped structure, and subsequent screw fastening is facilitated.
In this embodiment, the fixing structure 2 includes a vertically arranged fixing sleeve 17, the rotating rod 5 is inserted into the fixing sleeve 17, the fixing sleeve 17 is externally connected with a plurality of fixing frames 18, the fixing frames 18 are uniformly arranged at equal intervals to provide supporting forces in different directions for the fixing sleeve 17, thereby stabilizing the structure, the end of the fixing frame 18 is bent downwards to form a supporting arm 19, the bottom of the supporting arm 19 is provided with a fixing seat 20, the fixing seat 20 is provided with a counterweight 21, the bottom of the counterweight 21 is provided with a vacuum chuck 22, the fixing seat 20 is further connected with a clamping seat 23, the lower surface of the clamping seat 23 is provided with a fixing clamp 24, the upper end surface of the clamping seat 23 is provided with a connecting rod 25, the top of the connecting rod 25 is provided with a permanent magnet 26, the center of the bottom of the counterweight 21 is provided with a vertical insertion hole 27, the top of the vertical insertion hole 27 is provided with a fixing magnet 28, the connecting rod 25 is inserted into the vertical insertion hole 27, and the permanent magnet 26 is contacted with and attracted by the fixed magnet 28.
In the embodiment, the placing position of the fixing structure 2 is selected according to the position of the screw to be fastened, when the periphery of the screw to be fastened is flat, smooth and airtight, the fixing structure 2 is fixed by using the vacuum chuck 22, the weight of the counterweight 21 is matched with the weight of the rest parts to enable the vacuum chuck 22 to be tightly pressed on the plane around the screw to be fastened, and the stable support is provided for the fastening device 1 arranged on the fixing structure 2 by combining the supporting force of the supporting arms 19 in different directions; when the periphery of the screw to be fastened is flat and smooth but is ventilated, the weight of the balancing weight 21 is matched with the weight of other parts, and the supporting force of the supporting arm 19 in different directions is combined to provide stable support for the fastening device 1 arranged on the fixed structure 2; when the periphery of the screw to be fastened is not flat and smooth enough, the fixing clamp 24 is taken out, the connecting rod 25 is aligned to the vertical insertion hole 27 and inserted, the permanent magnet block 26 is in contact with the fixing magnet block 28 and is attracted together, the fixing clamp 24 is fixed on the balancing weight 21, the fixing clamp 24 is used for clamping the bulge around the screw to be fastened, and the supporting force of the supporting arm 19 in different directions is combined to provide stable support for the fastening device 1 installed on the fixing structure 2.
In the above description, the permanent magnet 26 and the fixed magnet 28 are disposed so as to make the fixing clip 24 very convenient to disassemble and assemble, and the fixing process by the counterweight 21 and the fixing process by the vacuum chuck 22 are also very simple and fast, so that the fixing process by the fixing structure 2 of the present embodiment is very simple and fast, and the counterweight 21, the vacuum chuck 22 and the fixing clip 24 are combined with each other, so that the fixing mode of the fixing structure 2 can be more diversified, and the fixing structure 2 can be fast fixed under different conditions.
In the present embodiment, the rotating lever 5 is a circular lever, the fixing sleeve 17 is a cylindrical shape having an inner diameter equal to that of the rotating lever 5, the fastening rod 3 has a diameter larger than that of the rotating lever 5, and the fastening sleeve 6 has a diameter larger than that of the rotating lever 5.
When using this a nut fastener for electric wire netting overhauls, its step is as follows:
firstly, selecting a fastening sleeve 6 with a proper size according to the model and the size of a screw to be fastened, wherein a fastening clamping groove 7 on the lower end surface of the fastening sleeve 6 can be sleeved on the screw to be fastened, and the screw to be fastened is driven to rotate through the fastening clamping groove 7 when the fastening sleeve 6 is rotated;
step two, using a nut fastening device to fasten the screw to be fastened in a rotating way: according to the size of a screw to be fastened, the difficulty of the next installation process is judged, and the two situations can be divided into two situations, namely firstly, the installation process is simple and convenient, the force application is small, the screw can be fastened by one hand, secondly, the installation process is labor-consuming, the operation by one hand is inconvenient, and the operation by two hands is needed;
under the condition of single-hand operation, the fastening sleeve 6 is arranged on the rotating rod 5, then the rotating rod 5 is lifted, the fastening sleeve 6 is buckled on the screw to be fastened, the upper end of the screw to be fastened is embedded into the fastening clamping groove 7, a single finger is inserted into the gap of the cross-shaped special-shaped sleeve 29, the sleeve 4 is held by the hand in a rotating mode, the rotating rod 5 is driven to rotate, and the screw to be fastened is fastened in a rotating mode;
under the conditions of inconvenient one-hand operation and two-hand operation, the fixed structure 2 is placed near the screw to be fastened, the fixed sleeve 17 faces the screw to be fastened, the rotating rod 5 is inserted into and penetrates through the fixed sleeve 17, then the fixed sleeve 6 is connected, the fastening sleeve 6 is buckled on the screw to be fastened, the upper end of the screw to be fastened is embedded into the fastening clamping groove 7, then the hand-holding sleeve 4 is pulled upwards, the hand-holding sleeve 4 is separated from the fastening rod 3, the rotating cross rod 14 is propped open under the elastic force of the supporting spring 15, the fastening rod 3 and the rotating cross rod 14 form a cross structure, and two hands respectively hold one rotating cross rod 14 to apply force and rotate together so as to enable the screw to be fastened to rotate and fasten.
In step two of the present embodiment, the specific process of the two-hand operation is: selecting the placing position of the fixed structure 2 according to the position of the screw to be fastened, when the periphery of the screw to be fastened is flat, smooth and airtight, fixing the fixed structure 2 by using the vacuum chuck 22, matching the weight of the counterweight 21 with the weight of the rest parts to tightly press the vacuum chuck 22 on the plane around the screw to be fastened, and providing stable support for the fastening device 1 arranged on the fixed structure 2 by combining the supporting force of the supporting arms 19 in different directions; when the periphery of the screw to be fastened is flat and smooth but is ventilated, the weight of the balancing weight 21 is matched with the weight of other parts, and the supporting force of the supporting arm 19 in different directions is combined to provide stable support for the fastening device 1 arranged on the fixed structure 2; when the periphery of the screw to be fastened is not flat and smooth enough, the fixing clamp 24 is taken out, the connecting rod 25 is aligned to the vertical insertion hole 27 and inserted, the permanent magnet block 26 is in contact with the fixing magnet block 28 and is attracted together, the fixing clamp 24 is fixed on the balancing weight 21, the fixing clamp 24 is used for clamping the bulge around the screw to be fastened, and the supporting force of the supporting arm 19 in different directions is combined to provide stable support for the fastening device 1 installed on the fixing structure 2.
Through the arrangement, when the screw is fastened by one hand, the fastening process is not too complicated compared with the operation of common screw fastening devices such as a wrench with a fixed size, and meanwhile, when the screw is fastened by two hands, the two hands can be liberated through the fixing structure 2, and the screw is fastened by using the two hands, so that the force can be applied more conveniently compared with the prior art, and convenience is brought to the screw fastening process.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. A nut fastening device for power grid maintenance is characterized by comprising a fastening device (1) for fastening a screw and a nut and a fixing structure (2) for placing and fixing the fastening device (1);
the fastening device (1) comprises a fastening rod (3), a hand-holding sleeve (4) sleeved outside the fastening rod (3), a rotating rod (5) connected to the lower end of the fastening rod (3), and a fastening sleeve (6) in threaded connection with the lower end of the rotating rod (5), wherein a fastening clamping groove (7) matched with a to-be-fastened screw is formed in the bottom end of the fastening sleeve (6), vertical limiting strips (8) are arranged on the left side wall and the right side wall of the fastening rod (3), a containing hole cavity (9) used for containing the fastening rod (3) is formed in the hand-holding sleeve (4), the lower end of the containing hole cavity (9) is open, limiting cavities (10) used for containing the vertical limiting strips (8) are formed in the two sides of the containing hole cavity (9), and clamping assemblies (11) are correspondingly arranged between the hand-holding sleeve (4) and the fastening rod (3), the front side wall and the rear side wall of the fastening rod (3) are provided with accommodating grooves (13), the accommodating grooves (13) are vertically arranged, and the top ends of the accommodating grooves are hinged with a rotating cross rod (14);
the fixing structure (2) comprises a fixing sleeve (17) which is vertically arranged, the rotating rod (5) penetrates through the fixing sleeve (17), a plurality of fixing frames (18) are connected to the outside of the fixing sleeve (17), the fixing frames (18) are uniformly arranged at equal intervals, the tail end of each fixing frame (18) is bent downwards to form a supporting arm (19), a fixing seat (20) is arranged at the bottom of each supporting arm (19), a balancing weight (21) is arranged on each fixing seat (20), and a vacuum sucker (22) is arranged at the bottom of each balancing weight (21);
the fixing seat (20) is further connected with a clamping seat (23), a fixing clamp (24) is installed on the lower surface of the clamping seat (23), a connecting rod (25) is arranged on the upper end face of the clamping seat (23), a permanent magnet (26) is arranged at the top of the connecting rod (25), a vertical inserting hole (27) is formed in the center of the bottom of the balancing weight (21), a fixing magnet block (28) is arranged at the top of the vertical inserting hole (27), the connecting rod (25) is inserted into the vertical inserting hole (27), and the permanent magnet (26) is in contact with the fixing magnet block (28) and is attracted together.
2. Nut fastening device for electrical network overhaul according to claim 1, characterized in that the top of the hand-held sleeve (4) is provided with a profiled sleeve (29), the profiled sleeve (29) being cross-shaped.
3. The nut fastening device for power grid maintenance of claim 2, characterized in that the clamping assembly (11) comprises a clamping groove (30) circumferentially arranged on the shaft of the fastening rod (3), the clamping groove (30) is located at the lowest end of the fastening rod (3), an elastic clamping sleeve (12) is arranged in the clamping groove (30), the thickness of the elastic clamping sleeve (12) is gradually increased from top to bottom, and the thickness of the uppermost end of the elastic clamping sleeve (12) is equal to the depth of the clamping groove (30).
4. Nut fastening device for grid services according to claim 3, characterized in that a support spring (15) is provided between the rotating crossbar (14) and the housing groove (13).
5. The nut fastening device for electric network overhaul according to claim 4, characterized in that a telescopic rod (16) is arranged between the rotating cross bar (14) and the accommodating groove (13), one end of the telescopic rod (16) is hinged on the rotating cross bar (14), the other end is hinged in the accommodating groove (13), and the telescopic rod (16) is arranged in the supporting spring (15) in a penetrating manner.
6. The nut fastening device for power grid maintenance according to claim 5, characterized in that the rotating rod (5) is a round rod, the fixing sleeve (17) is a cylinder and has an inner diameter equal to that of the rotating rod (5), the diameter of the fastening rod (3) is greater than that of the rotating rod (5), and the diameter of the fastening sleeve (6) is greater than that of the rotating rod (5).
7. Nut fastening device for grid services according to claim 6, characterized in that its method of use comprises the following steps:
firstly, selecting a fastening sleeve (6) according to the type and size of a screw to be fastened, wherein a fastening clamping groove (7) on the lower end face of the fastening sleeve (6) can be sleeved on the screw to be fastened, and the screw to be fastened is driven to rotate through the fastening clamping groove (7) when the fastening sleeve (6) is rotated;
step two, using a nut fastening device to fasten the screw to be fastened in a rotating way: according to the size of a screw to be fastened, the difficulty of the next installation process is judged, and the two situations can be divided into two situations, namely firstly, the installation process is simple and convenient, the force application is small, the screw can be fastened by one hand, secondly, the installation process is labor-consuming, the operation by one hand is inconvenient, and the operation by two hands is needed;
under the condition of single-hand operation, a fastening sleeve (6) is arranged on a rotating rod (5), then the rotating rod (5) is lifted, the fastening sleeve (6) is buckled on a screw to be fastened, the upper end of the screw to be fastened is embedded into a fastening clamping groove (7), a finger of a single hand is inserted into a gap of a cross-shaped special-shaped sleeve (29), and the sleeve (4) is held by the hand in a rotating manner to drive the rotating rod (5) to rotate so as to enable the screw to be fastened to rotate and fasten;
under the conditions of inconvenient one-hand operation and two-hand operation, a fixed structure (2) is placed near a screw to be fastened, a fixed sleeve (17) is made to face the screw to be fastened, a rotating rod (5) is inserted into and penetrates through the fixed sleeve (17), then the fixed sleeve (6) is connected, the fastening sleeve (6) is buckled on the screw to be fastened, the upper end of the screw to be fastened is embedded into a fastening clamping groove (7), then a hand-holding sleeve (4) is pulled upwards, the hand-holding sleeve (4) is separated from a fastening rod (3), a rotating cross rod (14) is propped open under the action of the elastic force of a supporting spring (15), the fastening rod (3) and the rotating cross rod (14) form a cross structure, and two hands respectively hold one rotating cross rod (14) to apply force and rotate together so that the screw to be fastened is rotated and fastened.
8. The nut fastening device for power grid overhaul according to claim 7, wherein the specific process of two-hand operation in the second step is as follows:
selecting the placement position of the fixing structure (2) according to the position of the screw to be fastened, when the periphery of the screw to be fastened is flat, smooth and airtight, fixing the fixing structure (2) by using a vacuum chuck (22), matching the weight of a balancing weight (21) with the weight of other parts to enable the vacuum chuck (22) to be tightly pressed on the plane around the screw to be fastened, and providing stable support for the fastening device (1) arranged on the fixing structure (2) by combining the supporting force of the supporting arms (19) in different directions; when the periphery of the screw to be fastened is flat and smooth but is ventilated, the weight of the balancing weight (21) is matched with the weight of the rest parts, and the supporting force of the supporting arms (19) in different directions is combined to provide stable support for the fastening device (1) arranged on the fixed structure (2); when the periphery of the screw to be fastened is not flat and smooth enough, the fixing clamp (24) is taken out, the connecting rod (25) is aligned to the vertical insertion hole (27) and inserted, the permanent magnet block (26) is in contact with the fixing magnet block (28) and is attracted together, the fixing clamp (24) is fixed on the balancing weight (21), the fixing clamp (24) is used for clamping a bulge around the screw to be fastened, and the fixing clamp combines the supporting force of the supporting arm (19) in different directions to provide stable support for the fastening device (1) installed on the fixing structure (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010297027.7A CN111515900B (en) | 2020-04-15 | 2020-04-15 | Nut fastening device for power grid maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010297027.7A CN111515900B (en) | 2020-04-15 | 2020-04-15 | Nut fastening device for power grid maintenance |
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| Publication Number | Publication Date |
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| CN111515900A CN111515900A (en) | 2020-08-11 |
| CN111515900B true CN111515900B (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010297027.7A Active CN111515900B (en) | 2020-04-15 | 2020-04-15 | Nut fastening device for power grid maintenance |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548948B (en) * | 2020-11-23 | 2022-09-20 | 中国长江电力股份有限公司 | Super nut dismounting tool and dismounting method |
| CN112894719B (en) * | 2021-02-02 | 2022-10-11 | 国网江西省电力有限公司吉安供电分公司 | Electric power overhauls uses portable bolt dismounting device |
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| EP1993787B1 (en) * | 2006-03-02 | 2010-05-05 | BD-Werkzeugtechnik AG | Quick-change holder for screwdriver inserts |
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| CN111515900A (en) | 2020-08-11 |
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Effective date of registration: 20210714 Address after: 1122 Yuanshen Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Applicant after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: Anhui International Finance and Trade Center 2-2409, No.18 Meishan Road, Shushan District, Hefei City, Anhui Province Applicant before: Anhui zhengxinghe Photoelectric Technology Co.,Ltd. |
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