CN113510647A - Nut fastening method of ratchet wrench capable of randomly adjusting opening amount - Google Patents
Nut fastening method of ratchet wrench capable of randomly adjusting opening amount Download PDFInfo
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- CN113510647A CN113510647A CN202110895015.9A CN202110895015A CN113510647A CN 113510647 A CN113510647 A CN 113510647A CN 202110895015 A CN202110895015 A CN 202110895015A CN 113510647 A CN113510647 A CN 113510647A
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- wrench body
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- shell
- opening amount
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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
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
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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
- B25B27/143—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 for installing wire thread inserts or tubular threaded inserts
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- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention relates to a nut fastening method of a ratchet wrench, which can randomly adjust the opening amount, and comprises a gear driving mechanism and an elastic clamping mechanism which are arranged in a shell, wherein the gear driving mechanism is connected with a handle at the top of the shell, and the bottom of the shell is provided with a nut inlet, and the nut fastening method comprises the following specific steps: the shell is held, the handle is rotated anticlockwise, the handle drives the gear driving mechanism to act, the gear driving mechanism drives the elastic clamping mechanism to increase the opening amount gradually, and when the opening amount reaches a proper position, the nut inlet is aligned to the nut so that the nut is positioned in the elastic clamping mechanism; loosening the shell, resetting the elastic clamping mechanism to clamp the nut, and rotating the handle clockwise to screw the nut tightly; the handle is rotated anticlockwise, the gear driving mechanism drives the opening of the elastic clamping mechanism to be gradually increased, and the whole shell is rotated to enable the elastic clamping mechanism to move to the next clamping surface of the nut, so that the switching of the clamping surfaces is realized; the handle is rotated clockwise to tighten the nut; the opening amount can be flexibly adjusted without moving a spanner.
Description
The technical field is as follows:
the invention relates to a nut fastening method of a ratchet wrench, which can randomly adjust the opening amount.
Background art:
the ratchet wrench is a manual nut fastening tool, saves labor and is fast in the using process, has the characteristics of simple structure, convenience in operation and strong practicability, is a wrench which is widely applied at present, and can be used by workers in the fields of engineering construction, equipment maintenance, installation and the like.
Problems are also encountered in the process of tightening nuts using a ratchet wrench: firstly, the common ratchet wrench, whether of a single-hole or multi-hole specification, can only be used on a single or a plurality of fixed nuts with limited specifications, and in the actual field work such as engineering construction, equipment maintenance, installation and the like, machine equipment and instruments are provided with nuts with various specifications, some nuts are not common, and because the opening amount of the common ratchet wrench is fixed and cannot be adjusted, the unusual nuts exceed the use range of the common ratchet wrench, and the universality of the common ratchet wrench is reduced; secondly, although some nuts are within the use range of the common ratchet wrench, the error of the nuts during production is too large, and the specifications of some nuts are not standard, so that the opening of the ratchet wrench is not completely matched with the nuts, so that the tightness of the nuts is not accurately adjusted by the ratchet wrench, and even the use is influenced; thirdly, the method comprises the following steps: in order to flexibly adapt to the actual working environment, a ratchet wrench capable of adjusting the opening amount is available on the market, although the ratchet wrench can be used on nuts with different specifications, when a workpiece is screwed, the opening of the ratchet wrench needs to be adjusted to a proper size, then the workpiece is screwed by the ratchet wrench, if the space is limited, the ratchet wrench needs to be repeatedly and manually taken away in the screwing process, and then the ratchet wrench returns to the position before the screwing until the tightness of the nut is adjusted, so that the ratchet wrench is very inconvenient and consumes time.
In summary, the adjustment of the structure and the opening of the conventional ratchet wrench is a technical problem to be solved urgently in the industry.
The invention content is as follows:
in order to make up for the defects of the prior art, the invention provides the nut fastening method of the ratchet wrench, which can randomly adjust the opening amount, is suitable for nuts of different specifications, solves the problem of adjusting the opening amount of the prior ratchet wrench, reduces the requirement on the use space, improves the universality and saves the time.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a nut fastening method of a ratchet wrench capable of randomly adjusting opening amount comprises a gear driving mechanism and an elastic clamping mechanism which are arranged in a shell, wherein the gear driving mechanism is connected with a handle at the top of the shell, a nut inlet is formed in the bottom of the shell, and the nut fastening method comprises the following specific steps:
the method comprises the following steps: the shell is held, the handle is rotated anticlockwise, the handle drives the gear driving mechanism to act, the gear driving mechanism drives the elastic clamping mechanism to increase the opening amount gradually, and when the opening amount reaches a proper position, the nut inlet is aligned to the nut so that the nut is positioned in the elastic clamping mechanism;
step two: loosening the shell, resetting the elastic clamping mechanism to clamp the nut, and rotating the handle clockwise to screw the nut tightly;
step three: the handle is rotated anticlockwise, the gear driving mechanism drives the opening of the elastic clamping mechanism to be gradually increased, and the whole shell is rotated to enable the elastic clamping mechanism to move to the next clamping surface of the nut, so that the switching of the clamping surfaces is realized; and the handle is rotated clockwise to tighten the nut.
Preferably, the housing comprises an upper wrench body housing and a lower wrench body housing, the gear driving mechanism is mounted in the upper wrench body housing, the handle is fixedly connected with the gear driving mechanism through a pin shaft penetrating through the upper wrench body housing, the elastic clamping mechanism is mounted in the lower wrench body housing, and the gear driving mechanism is connected with the elastic clamping mechanism through a connecting block.
Preferably, the upper end of the upper wrench body shell is provided with an upper end cover of the upper wrench body, and the lower end of the upper wrench body shell is provided with a lower end cover of the upper wrench body;
the central authorities of upper wrench body upper end cover and upper wrench body lower extreme cover all are provided with the through-hole of installation round pin axle to the through-hole evenly is equipped with two first arc through-holes as the center, the first arc through-hole position, the size unanimity of upper wrench body upper end cover and upper wrench body lower extreme cover.
Preferably, the upper end of the lower wrench body shell is provided with a lower wrench body upper end cover, the lower end of the lower wrench body shell is provided with a lower wrench body lower end cover, and the nut inlet is formed in the middle of the lower wrench body lower end cover;
the upper end cover of the lower wrench body and the lower end cover of the lower wrench body are respectively and evenly provided with two straight slotted holes by taking the nut inlet as the center, and the inner wall of the shell of the lower wrench body is provided with an annular groove.
Preferably, the gear driving mechanism comprises a driving gear, two driven gears and two arc-shaped sliding blocks, the driving gear is installed in the upper wrench body shell through a pin shaft, the two driven gears are symmetrically distributed on two sides of the driving gear and are both installed in the upper wrench body shell through a rotating shaft, the two arc-shaped sliding blocks are respectively concentrically arranged with the two driven gears and are slidably located in first arc-shaped through holes of an upper end cover of the upper wrench body and a lower end cover of the upper wrench body, and the bottoms of the arc-shaped sliding blocks are both fixedly connected with the connecting block; the driving gear is meshed with the two driven gears, the two arc-shaped sliding blocks are meshed with the two driven gears through the meshed teeth on the surfaces of the two arc-shaped sliding blocks respectively, and the two driven gears drive the two arc-shaped sliding blocks to rotate in the first arc-shaped through holes respectively.
Preferably, the elastic clamping mechanism comprises two rotary pressing fixture blocks and a spring, the two rotary pressing fixture blocks are uniformly arranged along the circumference of the inlet of the nut and are fixedly arranged in the lower wrench body shell through a rotating shaft, a second arc-shaped through hole is arranged on the rotary pressing fixture block, a movable rod is arranged in the second arc-shaped through hole, the upper end of the movable rod is fixedly connected with the lower end of the connecting block, the movable rod is simultaneously positioned in the second arc-shaped through hole and the straight slotted hole in a sliding manner, one side of the rotary pressing fixture block close to the inlet of the nut is a clamping plane, the clamping planes of the two rotary pressing fixture blocks are mutually matched for clamping the nut, the other side of the rotary pressing fixture block is provided with a spring hole, one end of the spring is fixedly arranged in the spring hole, the other end of the spring is positioned in an annular groove on the inner wall of the lower wrench body shell in a sliding way, the movable rod and the spring are matched with each other to drive the rotary pressing fixture block to rotate so as to adjust the opening amount of the inlet of the nut.
Preferably, the top of the connecting block is provided with an arc-shaped groove, the bottom of the arc-shaped sliding block is fixedly inserted into the arc-shaped groove, the bottom of the connecting block is provided with a circular groove, and the top of the movable rod is fixedly inserted into the circular groove.
By adopting the scheme, the invention has the following beneficial effects:
the gear driving mechanism is arranged in the upper wrench body shell, the elastic clamping mechanism is arranged in the lower wrench body shell, the shell is held, the handle is rotated anticlockwise, the handle drives the gear driving mechanism to act, the gear driving mechanism drives the elastic clamping mechanism to increase the opening amount gradually, and when the opening amount reaches a proper position, the nut inlet is aligned to the nut so that the nut is positioned in the elastic clamping mechanism; loosening the shell, resetting the elastic clamping mechanism to clamp the nut, and rotating the handle clockwise to screw the nut tightly; when the nut screwing device is operated in a limited space, the handle is rotated anticlockwise, the gear driving mechanism drives the opening amount of the elastic clamping mechanism to be gradually increased, the whole shell is rotated to enable the elastic clamping mechanism to move to the next clamping face of the nut, switching of the clamping faces is achieved, the clockwise rotating handle is continued again, the nut is screwed repeatedly, in the whole process, the ratchet wrench does not need to be moved away from the nut, the nut is screwed only by repeatedly rotating the handle clockwise and anticlockwise and converting the whole shell to the clamping face of the nut, the operation is simple, the requirement on the use space is reduced, the time is saved, the opening amount can be flexibly adjusted to be suitable for nuts of different specifications, and the universality is improved.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
FIG. 3 is a schematic view of the internal structure of the upper wrench body according to the present invention.
FIG. 4 is a schematic view of the internal structure of the lower wrench body according to the present invention.
Fig. 5 is a schematic structural view of the upper end cap of the present invention.
Fig. 6 is a schematic structural view of the lower end cap of the present invention.
Fig. 7 is a schematic structural diagram of an arc-shaped slider in the invention.
Fig. 8 is a schematic structural view of the connecting block of the present invention.
Fig. 9 is a schematic structural view of the rotating pressing fixture block of the present invention.
In the figure, 1, a pin shaft, 2, a handle, 3, a nut inlet, 4, a connecting block, 5, an upper wrench body shell, 6, an upper wrench body upper end cover, 7, an upper wrench body lower end cover, 8, a first arc-shaped through hole, 9, a lower wrench body shell, 10, a lower wrench body upper end cover, 11, a lower wrench body lower end cover, 12, a straight slot hole, 13, an annular groove, 14, a driving gear, 15, a driven gear, 16, an arc-shaped sliding block, 17, a grinding tooth, 18, a rotary pressing clamping block, 19, a spring, 20, a second arc-shaped through hole, 21, a movable rod, 22, a clamping plane, 23, a spring hole, 24 and an arc-shaped groove.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
With reference to the embodiments shown in fig. 1 to 9, a nut tightening method for a ratchet wrench with an arbitrarily adjustable opening amount includes a gear driving mechanism and an elastic clamping mechanism arranged in a housing, the gear driving mechanism is connected with a handle 2 at the top of the housing, and a nut inlet 3 is arranged at the bottom of the housing, and the method includes the following steps:
the method comprises the following steps: the shell is held, the handle 2 is rotated anticlockwise, the handle 2 drives the gear driving mechanism to act, the gear driving mechanism drives the elastic clamping mechanism to increase the opening amount gradually, and when the opening amount reaches a proper position, the nut inlet 3 is aligned to the nut so that the nut is positioned in the elastic clamping mechanism;
step two: loosening the shell, resetting the elastic clamping mechanism to clamp the nut, and rotating the handle 2 clockwise to screw the nut tightly;
step three: the handle 2 is rotated anticlockwise, the gear driving mechanism drives the opening of the elastic clamping mechanism to be gradually increased, and the whole shell is rotated to enable the elastic clamping mechanism to move to the next clamping surface of the nut, so that the switching of the clamping surfaces is realized; the handle 2 is rotated clockwise to tighten the nut.
In the whole process, the ratchet wrench does not need to be removed from the nut, the nut is screwed only by repeatedly rotating the handle 2 clockwise and anticlockwise and rotating the whole shell to convert the clamping surface of the nut, and the problem that the traditional ratchet wrench is limited by the use space is solved.
The shell comprises an upper wrench body shell 5 and a lower wrench body shell 9, the gear driving mechanism is installed in the upper wrench body shell 5, the handle 2 is fixedly connected with the gear driving mechanism through a pin shaft 1 penetrating out of the upper wrench body shell 5, the elastic clamping mechanism is installed in the lower wrench body shell 9, and the gear driving mechanism is connected with the elastic clamping mechanism through a connecting block 4.
An upper end cover 6 of the upper wrench body is arranged at the upper end of the upper wrench body shell 5, and an upper end cover 7 of the upper wrench body is arranged at the lower end; the upper wrench body lower end cover 7 is fixedly connected with the upper wrench body shell 5, an annular boss is arranged at the upper end of the upper wrench body shell 5, the thickness of the upper wrench body upper end cover 6 is consistent with the height of the annular boss, and the upper wrench body upper end cover 6 and the upper wrench body lower end cover 7 are arranged for conveniently installing the gear driving mechanism.
The center of the upper wrench body upper end cover 6 and the upper wrench body lower end cover 7 is provided with a through hole for mounting the pin shaft 1, two first arc-shaped through holes 8 are uniformly formed by taking the through hole as the center, and the position and the size of the first arc-shaped through hole 8 of the upper wrench body upper end cover 6 and the first arc-shaped through hole 8 of the upper wrench body lower end cover 7 are consistent. The through hole is used for installing the pin shaft 1, and the first arc-shaped through hole 8 is a moving track of the arc-shaped sliding block 16.
The upper end of the lower wrench body shell 9 is provided with a lower wrench body upper end cover 10, the lower end of the lower wrench body shell is provided with a lower wrench body lower end cover 11, and the nut inlet 3 is arranged in the middle of the lower wrench body lower end cover 11; the lower end cover 11 of the lower wrench body is fixedly connected with the lower wrench body shell 9, an annular boss is arranged at the upper end of the lower wrench body shell 9, the thickness of the upper end cover 10 of the lower wrench body is consistent with the height of the annular boss, and the upper end cover 10 of the lower wrench body and the lower end cover 11 of the lower wrench body are arranged for conveniently installing the elastic clamping mechanism.
The upper end cover 10 of the lower wrench body and the lower end cover 11 of the lower wrench body are both provided with two straight slot holes 12 with the nut inlet 3 as the center, and the inner wall of the lower wrench body shell 9 is provided with an annular groove 13. The straight slot 12 is a moving track of the movable rod 21, the straight slot 12 is located below the first arc-shaped through hole 8, the width of the straight slot 12 is larger than the diameter of the movable rod 21, and the movable rod 21 can be guaranteed to move synchronously along with the arc-shaped sliding block 16 fixedly connected with the connecting block 4.
The gear driving mechanism comprises a driving gear 14, two driven gears 15 and two arc-shaped sliding blocks 16, wherein the driving gear 14 is installed in an upper wrench body shell 5 through a pin shaft 1, the two driven gears 15 are symmetrically distributed on two sides of the driving gear 14 and are both installed in the upper wrench body shell 5 through a rotating shaft, the two arc-shaped sliding blocks 16 are respectively concentrically arranged with the two driven gears 15 and are slidably positioned in first arc-shaped through holes 8 of an upper wrench body end cover 6 and a lower wrench body end cover 7, and the bottoms of the arc-shaped sliding blocks 16 are fixedly connected with a connecting block 4; the driving gear 14 is meshed with the two driven gears 15, the two arc-shaped sliders 16 are meshed with the two driven gears 15 through the meshed teeth 17 on the surfaces of the two arc-shaped sliders 16, and the two driven gears 15 drive the two arc-shaped sliders 16 to rotate in the first arc-shaped through holes 8 respectively. The driving gear 14 and the two driven gears 15 are meshed with each other to drive the two driven gears 15 to rotate, the two arc-shaped sliders 16 are concentrically arranged with the two driven gears 15 respectively, and one section of meshed teeth 17 is fixedly arranged in the centers of the two arc-shaped sliders 16, so that the two driven gears 15 can drive the two arc-shaped sliders 16 to rotate in the first arc-shaped through holes 8 respectively, and the elastic clamping mechanism fixedly connected with the connecting block 4 is indirectly driven to act.
The elastic clamping mechanism comprises two rotary pressing clamping blocks 18 and a spring 19, the two rotary pressing clamping blocks 18 are uniformly arranged along the circumference of the nut inlet 3 and are fixedly installed in the lower wrench body shell 9 through a rotating shaft, a second arc-shaped through hole 20 is formed in each rotary pressing clamping block 18, a movable rod 21 is installed in each second arc-shaped through hole 20, the upper end of each movable rod 21 is fixedly connected with the lower end of the corresponding connecting block 4, each movable rod 21 is located in the corresponding second arc-shaped through hole 20 and the corresponding straight groove hole 12 in a sliding mode simultaneously, one side, close to the nut inlet 3, of each rotary pressing clamping block 18 is a clamping plane 22, the clamping planes 22 of the two rotary pressing clamping blocks 18 are matched with each other to clamp the nut, the spring hole 23 is formed in the other side of each rotary pressing clamping block 18, one end of each spring 19 is fixedly installed in the corresponding spring hole 23, and the other end of each spring is located in the corresponding annular groove 13 in the inner wall of the lower wrench body shell 9 in a sliding mode, the movable rod 21 and the spring 19 are matched with each other to drive the rotary pressing fixture block 18 to rotate so as to adjust the opening of the nut inlet 3. The connecting block 4 fixedly connected with the arc-shaped sliding block 16 drives the movable rod 21 to move in the straight groove hole 12, the movable rod 21 drives the rotary pressing fixture blocks 18 to move, when the two rotary pressing fixture blocks 18 approach each other, the opening amount is reduced, the spring 19 extends, when the two rotary pressing fixture blocks 18 are far away from each other, the opening amount is increased, the spring 19 is compressed, when the opening amount reaches a proper position, the nut inlet 3 is aligned with the nut, so that the nut is positioned in the clamping plane 22 of the two rotary pressing fixture blocks 18, the shell is loosened, the clamping plane 22 of the two rotary pressing fixture blocks 18 clamps the nut, and the nut can be screwed by rotating the handle 2 clockwise by a worker; when the nut screwing machine is operated in a limited space, the handle 2 is rotated anticlockwise, the opening amount is increased, the whole shell is rotated to enable the clamping planes 22 of the two rotary pressing fixture blocks 18 to move to the next clamping surface of the nut, the switching of the clamping surfaces is realized, the handle 2 is rotated clockwise continuously, and the nut is screwed repeatedly.
The top of the connecting block 4 is provided with an arc-shaped groove 24, the bottom of the arc-shaped sliding block 16 is fixedly inserted in the arc-shaped groove 24, the bottom of the connecting block 4 is provided with a circular groove, and the top of the movable rod 21 is fixedly inserted in the circular groove.
The working principle is as follows:
holding the shell, firstly rotating the handle 2 anticlockwise, the handle 2 drives the driving gear 14 to rotate anticlockwise through the pin shaft 1, the driving gear 14 drives the two driven gears 15 on the two sides to rotate clockwise, the two driven gears 15 respectively drive the arc-shaped slider 16 on one side to move in the first arc-shaped through hole 8 towards the direction far away from the driving gear 14, meanwhile, the connecting block 4 fixedly connected with the arc-shaped slider 16 drives the movable rod 21 to move in the straight slot hole 12 towards the direction far away from the nut inlet 3, the movable rod 21 drives the rotary pressing fixture block 18 to move away from the nut inlet 3, the spring 19 is compressed by the rotary pressing fixture block 18 and rotates along with the rotary pressing fixture block 18 in the annular groove 13 on the inner wall of the lower wrench body, the distance between the two rotary pressing fixture blocks 18 is gradually increased, the opening amount of the nut inlet 3 is also gradually increased, when the opening amount reaches a proper position, the nut is aligned with the nut 3 to enable the nut to be positioned between the clamping planes 22 of the two rotary pressing fixture blocks 18, the shell is loosened, the spring 19 is reset and extended, the spring 19 pushes the two rotary pressing fixture blocks 18 to rotate around the movable rods 21 and approach to the nuts, the clamping planes of the two arc-shaped sliders 16 are matched with each other to clamp the nuts, when the two rotary pressing fixture blocks 18 approach to each other, the movable rods 21 in the rotary pressing fixture blocks 18 drive the two arc-shaped sliders 16 fixedly connected with the connecting block 4 to approach to the driving gear 14, the two arc-shaped sliders 16 drive the two driven gears 15 to rotate anticlockwise, the two driven gears 15 drive the driving gear 14 to rotate clockwise, and the driving gear 14 drives the handle 2 to rotate clockwise through the pin shaft 1; the worker continues to forcibly rotate the handle 2 clockwise, and the nut can be screwed tightly; when the nut screwing machine is operated in a limited space, the handle 2 is rotated anticlockwise, the opening of the nut inlet 3 is gradually increased, then the whole shell is rotated to enable the clamping plane 22 of the rotary pressing fixture block 18 to move to the next clamping surface of the nut, the switching of the clamping surfaces is realized, the handle 2 is rotated clockwise continuously, and the nut is screwed.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (7)
1. A nut fastening method of a ratchet wrench capable of randomly adjusting the opening amount is characterized in that: including setting up gear drive mechanism and the elasticity fixture in the casing, gear drive mechanism links to each other with the handle at casing top, and the casing bottom is equipped with the nut import, and concrete step is as follows:
the method comprises the following steps: the shell is held, the handle is rotated anticlockwise, the handle drives the gear driving mechanism to act, the gear driving mechanism drives the elastic clamping mechanism to increase the opening amount gradually, and when the opening amount reaches a proper position, the nut inlet is aligned to the nut so that the nut is positioned in the elastic clamping mechanism;
step two: loosening the shell, resetting the elastic clamping mechanism to clamp the nut, and rotating the handle clockwise to screw the nut tightly;
step three: the handle is rotated anticlockwise, the gear driving mechanism drives the opening of the elastic clamping mechanism to be gradually increased, and the whole shell is rotated to enable the elastic clamping mechanism to move to the next clamping surface of the nut, so that the switching of the clamping surfaces is realized; and the handle is rotated clockwise to tighten the nut.
2. The nut tightening method of a ratchet wrench whose opening amount can be arbitrarily adjusted according to claim 1, wherein: the shell comprises an upper pulling body shell and a lower pulling body shell, the gear driving mechanism is installed in the upper pulling body shell, the handle is fixedly connected with the gear driving mechanism through a pin shaft penetrating out of the upper pulling body shell, the elastic clamping mechanism is installed in the lower pulling body shell, and the gear driving mechanism is connected with the elastic clamping mechanism through a connecting block.
3. The nut tightening method of a ratchet wrench whose opening amount can be arbitrarily adjusted according to claim 2, wherein: the upper end of the upper wrench body shell is provided with an upper end cover of the upper wrench body, and the lower end of the upper wrench body shell is provided with a lower end cover of the upper wrench body;
the central authorities of upper wrench body upper end cover and upper wrench body lower extreme cover all are provided with the through-hole of installation round pin axle to the through-hole evenly is equipped with two first arc through-holes as the center, the first arc through-hole position, the size unanimity of upper wrench body upper end cover and upper wrench body lower extreme cover.
4. The nut tightening method of a ratchet wrench whose opening amount can be arbitrarily adjusted according to claim 3, wherein:
the upper end of the lower wrench body shell is provided with a lower wrench body upper end cover, the lower end of the lower wrench body shell is provided with a lower wrench body lower end cover, and the nut inlet is formed in the middle of the lower wrench body lower end cover;
the upper end cover of the lower wrench body and the lower end cover of the lower wrench body are respectively and evenly provided with two straight slotted holes by taking the nut inlet as the center, and the inner wall of the shell of the lower wrench body is provided with an annular groove.
5. The nut tightening method of a ratchet wrench whose opening amount can be arbitrarily adjusted according to claim 4, wherein: the gear driving mechanism comprises a driving gear, two driven gears and two arc-shaped sliding blocks, the driving gear is installed in the upper wrench body shell through a pin shaft, the two driven gears are symmetrically distributed on two sides of the driving gear and are installed in the upper wrench body shell through a rotating shaft, the two arc-shaped sliding blocks are respectively concentrically arranged with the two driven gears and are slidably located in first arc-shaped through holes of an upper end cover of the upper wrench body and a lower end cover of the upper wrench body, and the bottoms of the arc-shaped sliding blocks are fixedly connected with connecting blocks; the driving gear is meshed with the two driven gears, the two arc-shaped sliding blocks are meshed with the two driven gears through the meshed teeth on the surfaces of the two arc-shaped sliding blocks respectively, and the two driven gears drive the two arc-shaped sliding blocks to rotate in the first arc-shaped through holes respectively.
6. The nut tightening method of a ratchet wrench whose opening amount can be arbitrarily adjusted according to claim 5, wherein: the elastic clamping mechanism comprises two rotary pressing fixture blocks and a spring, the two rotary pressing fixture blocks are uniformly arranged along the circumference of the inlet of the nut and are fixedly arranged in the lower wrench body shell through a rotating shaft, a second arc-shaped through hole is arranged on the rotary pressing fixture block, a movable rod is arranged in the second arc-shaped through hole, the upper end of the movable rod is fixedly connected with the lower end of the connecting block, the movable rod is simultaneously positioned in the second arc-shaped through hole and the straight slotted hole in a sliding manner, one side of the rotary pressing fixture block close to the inlet of the nut is a clamping plane, the clamping planes of the two rotary pressing fixture blocks are mutually matched for clamping the nut, the other side of the rotary pressing fixture block is provided with a spring hole, one end of the spring is fixedly arranged in the spring hole, the other end of the spring is positioned in an annular groove on the inner wall of the lower wrench body shell in a sliding way, the movable rod and the spring are matched with each other to drive the rotary pressing fixture block to rotate so as to adjust the opening amount of the inlet of the nut.
7. The nut tightening method of a ratchet wrench whose opening amount can be arbitrarily adjusted according to claim 6, wherein: the top of the connecting block is provided with an arc-shaped groove, the bottom of the arc-shaped sliding block is fixedly inserted into the arc-shaped groove, the bottom of the connecting block is provided with a circular groove, and the top of the movable rod is fixedly inserted into the circular groove.
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| CN202110895015.9A CN113510647B (en) | 2021-08-04 | 2021-08-04 | Nut fastening method of ratchet wrench capable of randomly adjusting opening amount |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110895015.9A CN113510647B (en) | 2021-08-04 | 2021-08-04 | Nut fastening method of ratchet wrench capable of randomly adjusting opening amount |
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| CN113510647A true CN113510647A (en) | 2021-10-19 |
| CN113510647B CN113510647B (en) | 2022-07-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114305644A (en) * | 2022-02-21 | 2022-04-12 | 重庆大学附属三峡医院 | Intelligent orthopaedic clinical nail taking equipment and method |
| CN114536275A (en) * | 2022-03-17 | 2022-05-27 | 陕西法士特齿轮有限责任公司 | Bearing disassembly body |
| CN115070657A (en) * | 2022-05-30 | 2022-09-20 | 贵州电网有限责任公司 | Multi-functional anti-skidding spanner of unmanned aerial vehicle |
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| CN111906719A (en) * | 2019-05-08 | 2020-11-10 | 宁波东全智能科技有限公司 | Adjustable ratchet wrench |
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| CN114305644A (en) * | 2022-02-21 | 2022-04-12 | 重庆大学附属三峡医院 | Intelligent orthopaedic clinical nail taking equipment and method |
| CN114536275A (en) * | 2022-03-17 | 2022-05-27 | 陕西法士特齿轮有限责任公司 | Bearing disassembly body |
| CN114536275B (en) * | 2022-03-17 | 2024-06-04 | 陕西法士特齿轮有限责任公司 | Bearing dismounting mechanism |
| CN115070657A (en) * | 2022-05-30 | 2022-09-20 | 贵州电网有限责任公司 | Multi-functional anti-skidding spanner of unmanned aerial vehicle |
| CN115070657B (en) * | 2022-05-30 | 2023-12-08 | 贵州电网有限责任公司 | Unmanned aerial vehicle multifunctional anti-slip wrench |
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