阅读说明：本技术 一种棘轮扳手 (Ratchet wrench ) 是由 戚小乐 于 2021-09-02 设计创作，主要内容包括：本发明公开了一种棘轮扳手,包括外壳,所述外壳顶面固设有机壳,所述机壳上设有左右位置对称的螺丝腔；本发明通过将十字螺丝刀和棘轮扳手的组合,能够使工作人员减少携带更多的工具,让工作更加轻便高效,使工作人员有更多精力参与工作中,提高了效率,降低了成本,而且通过将十字螺丝刀加入了棘轮的设计,使拧动十字螺丝时更加的快捷方便,并且能够承受较大的力,使工作更加的高效,并且对棘轮扳手加入了拧紧提醒的装置,使工作人员在使用棘轮扳手时能够判断拧的螺丝是否拧紧,保护了螺丝和扳手,使其不容易产生磨损,对扳手有更好的保护,并且提高了工作效率,能够迅速结束前一个的拧动,快速投入下一个螺丝的工作中去。(The invention discloses a ratchet wrench, which comprises a shell, wherein the top surface of the shell is fixedly provided with a shell, and the shell is provided with screw cavities which are symmetrical left and right; according to the invention, through the combination of the cross screwdriver and the ratchet wrench, the number of tools carried by a worker can be reduced, the work is more portable and efficient, the worker can have more energy to participate in the work, the efficiency is improved, the cost is reduced, the cross screwdriver is added into the ratchet design, the cross screwdriver can be screwed more quickly and conveniently, the work can be more efficient, and a screwing reminding device is added into the ratchet wrench, so that the worker can judge whether the screwed screw is screwed when using the ratchet wrench, the screw and the wrench are protected, the abrasion is not easy to generate, the wrench is better protected, the work efficiency is improved, the previous screwing can be rapidly finished, and the next screw can be rapidly put into the work.)

1. A ratchet wrench comprising a housing, characterized in that: the top surface of the shell is fixedly provided with a shell, the shell is provided with screw cavities with symmetrical left and right positions, the lower side of each screw cavity is provided with an inner ratchet cavity, a ratchet in each inner ratchet cavity is connected with a pawl, the top surface of each pawl is fixedly connected with a connecting column extending into the corresponding screw cavity, each connecting column is rotatably connected with a screwdriver, the bottom of each screwdriver is provided with a clamping cavity with an outward opening, the joint of each screwdriver and the corresponding connecting column is fixedly connected through a coil spring, a first gear cavity is arranged between every two screw cavities, a rack extending into the first gear cavity is slidably connected in each screw cavity, a second gear cavity is arranged on the lower side of each first gear cavity, an optical shaft extending into the second gear cavity is rotatably connected in each first gear cavity, a first gear is fixedly arranged at the upper end of the optical shaft, and the first gear is meshed with the rack, the lower end of the optical axis is fixedly provided with a second gear, the left side of the second gear cavity is provided with a spring cavity with a leftward opening, the second gear cavity is in sliding connection with a switch rack extending into the spring cavity, the switch rack is meshed with the second gear, the left surface of the switch rack is fixedly provided with a switch, the switch is fixedly connected with the right wall of the spring cavity through a spring, a wrench cavity with a left through and a right through is arranged in the shell, a wrench is in sliding connection with the wrench cavity, the left surface of the wrench is fixedly connected with an inner fastening wrench, the right surface of the wrench is provided with an outer wrench, the wrench is provided with a first ratchet wheel, the right side of the first ratchet wheel is provided with a second ratchet wheel, the first ratchet wheel is communicated with the second ratchet wheel through a middle channel, the top wall of the wrench cavity is communicated with a ratchet cavity, and a steering device capable of switching the rotation direction of the wrench is arranged in the ratchet cavity, and an adjusting device capable of switching the wrench is arranged in the bottom wall of the wrench cavity.

2. The ratchet wrench of claim 1, wherein: the turning device comprises a fixed connection, a fixed column in the ratchet cavity, a rotating rod is connected to the fixed column in a rotating manner, a sliding rod is connected to the rotating rod in a sliding manner in a symmetrical manner, a limiting cavity is formed in the lower end of the sliding rod, a roller is connected to the limiting cavity in a sliding manner, the roller is fixedly connected with the limiting cavity through a limiting spring, an outer pawl is fixedly connected to the roller, a regulating column penetrates through the left surface of the shell in a rotating manner, an adjusting knob is fixedly arranged at the left end of the regulating column, a steering wheel is fixedly connected to the regulating column, and a rotating device capable of enabling the rotating rod to rotate is arranged on the steering wheel.

3. The ratchet wrench of claim 2, wherein: rotating device including set up in the directive wheel and the ascending slip chamber of opening rotating device includes be equipped with the ascending slip chamber of opening on the directive wheel, the slip intracavity has set firmly the restriction post, sliding connection has the slider on the restriction post, the sliding tray that is equipped with in the slider with restriction post sliding connection, the restriction post with the sliding tray roof passes through restriction spring fixed connection.

4. The ratchet wrench of claim 1, wherein: the adjusting device comprises an adjusting cavity which is communicated with the bottom wall of the wrench cavity and has a left opening, the right wall of the adjusting cavity is communicated with a guide rod cavity communicated with the right surface of the shell, a slide rod is connected in the adjusting cavity in a sliding manner, an auxiliary wheel is connected on the slide rod in a rotating manner, a control rod extending into the guide rod cavity is connected on the right surface of the slide rod in a sliding manner, and the control rod and the guide rod cavity are fixed through two fixing springs.

5. The ratchet wrench of claim 1, wherein: the screw cavity on the left side is arranged on the left front side of the screw cavity on the right side.

6. The ratchet wrench of claim 1, wherein: the inner ratchet cavity on the left side and the inner ratchet cavity on the right side are opposite in rotation direction.

Technical Field

The invention relates to the technical field of wrenches, in particular to a ratchet wrench.

Background

The ratchet wrench is a manual screw tightening tool, a single-head and double-head multi-specification movable handle ratchet double offset ring spanner (with a fixed hole) is formed by connecting a main double offset ring cover and a secondary double offset ring cover in different specifications and sizes in an occlusion mode through a female key and a male key of an articulated key, and one double offset ring cover is provided with two specification double offset ring-shaped through holes, so that the ratchet wrench can be used for tightening screws in two specifications, the use range is expanded, and raw materials and working hours and expenses are saved.

Traditional ratchet spanner can only use solitary function in the design, can only twist and move outer hexagonal screw or interior hexagonal screw, needs the user to carry a plurality of spanners to also can not realize carrying a large amount of instruments at the during operation to the processing of cross screw etc. make work more loaded down with trivial details and complicated, let the efficiency of work reduce.

The traditional ratchet wrench can not judge whether the screw is screwed down, and can only judge the screw through hand feeling, so that the screw or the wrench is worn frequently, the service life of the wrench is shortened, and certain economic loss can be caused.

Disclosure of Invention

It is an object of the present invention to provide a ratchet wrench which overcomes the above-mentioned deficiencies of the prior art.

The ratchet wrench comprises a shell, wherein the top surface of the shell is fixedly provided with a shell, the shell is provided with screw cavities which are symmetrical in left and right positions, the lower side of each screw cavity is provided with an inner ratchet cavity, a ratchet wheel in the inner ratchet cavity is connected with a pawl, the top surface of the pawl is fixedly connected with a connecting column which extends into the screw cavity, the connecting column is rotatably connected with a screwdriver, the bottom of the screwdriver is provided with a clamping cavity with an outward opening, the joint of the screwdriver and the connecting column is fixedly connected through a coil spring, a first gear cavity is arranged between the two screw cavities, a rack which extends into the first gear cavity is slidably connected in the screw cavity, the lower side of the first gear cavity is provided with a second gear cavity which rotates in a rotating way, the first gear cavity is connected with an optical axis which extends into the second gear cavity, and a first gear is fixedly arranged at the upper end of the optical axis, the first gear is meshed with the rack, the lower end of the optical axis is fixedly provided with a second gear, the left side of the second gear cavity is provided with a spring cavity with a leftward opening, the second gear cavity is internally and slidably connected with a switch rack extending into the spring cavity, the switch rack is meshed with the second gear, the left surface of the switch rack is fixedly provided with a switch, the switch is fixedly connected with the right wall of the spring cavity through a spring, a wrench cavity which is communicated with the left and the right is arranged in the shell, the wrench cavity is internally and slidably connected with a wrench, the left surface of the wrench is fixedly connected with an inner fastening wrench, the right surface of the wrench is internally provided with an outer wrench, the wrench is provided with a first ratchet wheel, the right side of the first ratchet wheel is provided with a second ratchet wheel, the first ratchet wheel is communicated with the second ratchet wheel through a middle channel, and the top wall of the wrench cavity is communicated with a ratchet wheel cavity, the ratchet cavity is internally provided with a steering device capable of switching the rotation direction of the wrench, the bottom wall of the wrench cavity is internally provided with an adjusting device capable of switching the wrench, and the second ratchet wheel or the first ratchet wheel is limited in the adjusting device by the sliding rod and the outer pawl.

A further technical scheme, turn to the device include fixed connection set up in the fixed column of ratchet intracavity, it is connected with the dwang to rotate on the fixed column, position symmetry sliding connection has the slide bar around the dwang, the slide bar lower extreme is equipped with the restriction chamber, restriction intracavity sliding connection has the roller, the roller with the restriction chamber passes through spacing spring fixed connection, fixedly connected with pawl outside on the roller, the fixed column downside rotates and is connected with and runs through the regulation post on shell left surface, it is equipped with adjust knob admittedly to adjust post left end, fixedly connected with directive wheel on the regulation post, be equipped with the rotary device that can make the dwang rotatory on the directive wheel.

Further technical scheme, rotary device including set up in the directive wheel and the ascending slip chamber of opening, the restriction post has set firmly in the slip chamber, sliding connection has the slider on the restriction post, the sliding tray that is equipped with in the slider with restriction post sliding connection, the restriction post with the sliding tray roof passes through restriction spring fixed connection.

According to a further technical scheme, the adjusting device comprises an adjusting cavity which is communicated with and arranged in the bottom wall of the wrench cavity and has a left opening, the right wall of the adjusting cavity is communicated with and provided with a guide rod cavity communicated with the right surface of the shell, a slide rod is connected in the adjusting cavity in a sliding manner, an auxiliary wheel is connected on the slide rod in a rotating manner, a control rod extending into the guide rod cavity is connected on the right surface of the slide rod in a sliding manner, and the control rod and the guide rod cavity are fixed through two fixing springs.

According to the further technical scheme, the screw cavity on the left side is arranged on the left front side of the screw cavity on the right side.

According to a further technical scheme, the inner ratchet cavity on the left side and the inner ratchet cavity on the right side are opposite in rotation direction.

The invention has the beneficial effects that: according to the invention, through the combination of the cross screwdriver and the ratchet wrench, the number of tools carried by workers is reduced, the work is more portable and efficient, the workers have more vigor to participate in the work, the efficiency is improved, and the cost is reduced.

According to the invention, the cross screwdriver is added with the design of the ratchet wheel, so that the cross screwdriver is more rapid and convenient to screw, can bear larger force, and is more efficient in work.

The invention adds the device for reminding screwing to the ratchet wrench, so that a worker can judge whether the screwed screw is screwed when using the ratchet wrench, the screw and the wrench are protected, the screw and the wrench are not easy to wear, the wrench is better protected, the working efficiency is improved, the previous screwing can be rapidly finished, and the next screw can be rapidly put into work.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

FIG. 3 is a schematic view of the screwdriver of FIG. 2;

FIG. 4 is a schematic view of the outer pawl of FIG. 2;

FIG. 5 is a schematic view of the structure at A-A in FIG. 4;

FIG. 6 is a schematic view of the structure of the steering wheel of FIG. 2;

as shown in the figure:

11. a housing; 12. a housing; 13. a switch rack; 14. a spring; 15. a spring cavity; 16. a screw cavity; 18. connecting columns; 19. a rack; 20. a first gear; 21. a first gear chamber; 22. a second gear chamber; 23. a second gear; 24. a pawl; 25. an inner ratchet cavity; 26. a coil spring; 27. a screwdriver; 28. a switch; 29. clamping a dead cavity; 30. a slide bar; 32. an outer pawl; 33. a confinement chamber; 34. a limiting spring; 35. a roller; 37. rotating the rod; 38. fixing a column; 39. a steering wheel; 40. an adjustment column; 41. a sliding cavity; 42. a slider; 43. a sliding groove; 44. a restraining post; 45. a restraining spring; 46. fastening an inner wrench; 47. a first ratchet wheel; 48. a second ratchet wheel; 49. a middle channel; 50. a wrench cavity; 51. a wrench; 52. an auxiliary wheel; 53. a slide bar; 54. a control lever; 55. a guide rod cavity; 56. fixing the spring; 57. an outer wrench; 58. adjusting a knob; 59. an optical axis; 60. a ratchet cavity; 61. a conditioning chamber.

Detailed Description

For purposes of making the objects and advantages of the present invention more apparent and the invention is more clearly described below in connection with the examples, it is to be understood that the following text is intended merely to describe a ratchet wrench or several embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed, as the terms up, down, left and right are not limited to their strict geometric definition, but include tolerances for machining or human error rationality and inconsistency, the specific features of which are detailed below:

referring to the drawings, a ratchet wrench according to an embodiment of the present invention includes a housing 11, a housing 12 is fixedly disposed on a top surface of the housing 11, screw cavities 16 are symmetrically disposed on left and right sides of the housing 12, an inner ratchet cavity 25 is disposed on a lower side of the screw cavity 16, a ratchet 24 is connected to a ratchet wheel in the inner ratchet cavity 25, a connection post 18 extending into the screw cavity 16 is fixedly connected to a top surface of the ratchet 24, the connection post 18 is rotatably connected to a screwdriver 27, a locking cavity 29 with an outward opening is disposed at a bottom of the screwdriver 27, a connection portion between the screwdriver 27 and the connection post 18 is fixedly connected to a coil spring 26, a first gear cavity 21 is disposed between the two screw cavities 16, a rack 19 extending into the first gear cavity 21 is slidably connected to the screw cavity 16, a second gear cavity 22 is disposed on a lower side of the first gear cavity 21, an optical axis 59 extending into the second gear cavity 22 is rotatably connected to the first gear cavity 21, a first gear 20 is fixedly arranged at the upper end of the optical axis 59, the first gear 20 is meshed with the rack 19, a second gear 23 is fixedly arranged at the lower end of the optical axis 59, a spring cavity 15 with a leftward opening is formed in the left side of the second gear cavity 22, a switch rack 13 extending into the spring cavity 15 is connected in a sliding manner in the second gear cavity 22, the switch rack 13 is meshed with the second gear 23, a switch 28 is fixedly arranged on the left surface of the switch rack 13, the switch 28 is fixedly connected with the right wall of the spring cavity 15 through a spring 14, a wrench cavity 50 penetrating from left to right is arranged in the shell 11, a wrench 51 is connected in the wrench cavity 50 in a sliding manner, a fastening inner wrench 46 is fixedly connected to the left surface of the wrench 51, an outer wrench 57 is arranged in the right surface of the wrench 51, a first ratchet 47 is arranged on the wrench 51, and a second ratchet 48 is arranged on the right side of the first ratchet 47, the first ratchet wheel 47 and the second ratchet wheel 48 are communicated through a middle channel 49, a ratchet wheel cavity 60 is communicated with the top wall of the wrench cavity 50, a steering device 101 capable of switching the rotation direction of the wrench 51 is arranged in the ratchet wheel cavity 60, an adjusting device 103 capable of switching the wrench 51 is arranged in the bottom wall of the wrench cavity 50, and the second ratchet wheel 48 or the first ratchet wheel 47 is limited by the sliding rod 53 and the outer pawl 32.

Advantageously or exemplarily, the steering device 101 includes a fixed column 38 fixedly connected and disposed in the ratchet cavity 60, a rotating rod 37 is rotatably connected to the fixed column 38, a sliding rod 30 is symmetrically and slidably connected to the rotating rod 37 at a front-rear position, a limiting cavity 33 is disposed at a lower end of the sliding rod 30, a roller 35 is slidably connected in the limiting cavity 33, the roller 35 and the limiting cavity 33 are fixedly connected by a limiting spring 34, an outer pawl 32 is fixedly connected to the roller 35, an adjusting column 40 penetrating through a left surface of the housing 11 is rotatably connected to a lower side of the fixed column 38, an adjusting knob 58 is fixedly disposed at a left end of the adjusting column 40, a steering wheel 39 is fixedly connected to the adjusting column 40, a rotating device 102 capable of rotating the rotating rod 37 is disposed on the steering wheel 39, and when a direction change is required, the adjusting knob 58 is shifted to cause the adjusting column 40 to drive the steering wheel 39 to rotate, let dwang 37 rotate to appointed position, make slide bar 30 drive suitable outer pawl 32 and contact spanner 51, then begin to tighten the screw, spanner 51's atress grow after the screw tightening, make outer pawl 32 drive roller 35 inward movement, make spacing spring 34 compress to protection screw and spanner 51 can not be twisted badly, and the sound of the rattling that spanner 51 and outer pawl 32 collision sent reminds the user to have screwed up in addition.

Advantageously or exemplarily, the rotating device 102 includes a sliding cavity 41 disposed in the steering wheel 39 and having an upward opening, a limiting post 44 is secured in the sliding cavity 41, a sliding block 42 is slidably connected to the limiting post 44, a sliding groove 43 disposed in the sliding block 42 is slidably connected to the limiting post 44, the limiting post 44 is fixedly connected to a top wall of the sliding groove 43 through a limiting spring 45, when the steering wheel 39 rotates, the sliding block 42 contacts the rotating rod 37 to compress the limiting spring 45, so as to move the sliding block 42 into the sliding cavity 41, and then, when no force is applied, the limiting spring 45 is extended to urge the sliding block 42 to move out of the sliding cavity 41, so as to move the steering wheel 39 into a proper position.

Advantageously or exemplarily, the adjusting device 103 comprises an adjusting cavity 61 which is arranged in the bottom wall of the wrench cavity 50 in a communicating manner and has a left opening, a guide rod cavity 55 which is arranged in the communicating manner and is communicated with the right surface of the housing 11 is arranged in the communicating manner on the right wall of the adjusting cavity 61, a slide rod 53 is slidably connected in the adjusting cavity 61, an auxiliary wheel 52 is rotatably connected to the slide rod 53, a control rod 54 which extends into the guide rod cavity 55 is slidably connected to the right surface of the slide rod 53, the control rod 54 is fixed with the guide rod cavity 55 through two fixing springs 56, when the inner wrench 46 needs to be fastened to operate the outer wrench 57, the control rod 54 is pulled upwards, the control rod 54 drives the slide rod 53 to move downwards, the auxiliary wheel 52 is disengaged from the second ratchet wheel 48, then the wrench 51 is pushed rightwards, the outer pawl 32 passes through the middle channel 49, then the control rod 54 is released, and the fixing spring 56 resets the control rod 54, the auxiliary wheel 52 and the outer pawl 32 are made to clamp the first ratchet wheel 47, completing the switching.

Advantageously or exemplarily, the screw cavity 16 on the left is on the front left side of the screw cavity 16 on the right.

Advantageously or exemplarily, the inner ratchet cavity 25 on the left side and the inner ratchet cavity 25 on the right side are oppositely turned.

The invention relates to a ratchet wrench, which comprises the following working procedures:

when the cross screw needs to be screwed, a user presses the switch 28 to compress the spring 14, the switch rack 13 moves rightwards, the second gear 23 drives the optical shaft 59 to rotate, the first gear 20 moves the rack 19 inwards, the screwdriver 27 rotates ninety degrees under the torque action of the coil spring 26, the user can select a proper cross screw bit to work, the screwdriver 27 drives the connecting column 18 to rotate, the pawl 24 is driven to rotate, the pawl 24 and the inner ratchet cavity 25 are in ratchet-pawl matching, when the inner hexagonal screw needs to be screwed, the inner wrench 46 is directly fastened to work, the second ratchet 48 and the outer pawl 32 are in ratchet-pawl matching, when the outer hexagonal screw needs to be screwed, the wrench 51 is rotated to a designated position, the control rod 54 is pulled upwards, the wrench 51 is pushed rightwards, and then the control rod 54 is released, so that the outer wrench 57 can be used for working, the first ratchet wheel 47 and the outer pawl 32 are engaged in a ratchet-pawl manner, and when the direction needs to be changed, the adjusting knob 58 is turned to switch to a proper mode.

The invention has the beneficial effects that: according to the invention, through the combination of the cross screwdriver and the ratchet wrench, the number of tools carried by workers is reduced, the work is more portable and efficient, the workers have more vigor to participate in the work, the efficiency is improved, and the cost is reduced.

According to the invention, the cross screwdriver is added with the design of the ratchet wheel, so that the cross screwdriver is more rapid and convenient to screw, can bear larger force, and is more efficient in work.

The invention adds the device for reminding screwing to the ratchet wrench, so that a worker can judge whether the screwed screw is screwed when using the ratchet wrench, the screw and the wrench are protected, the screw and the wrench are not easy to wear, the wrench is better protected, the working efficiency is improved, the previous screwing can be rapidly finished, and the next screw can be rapidly put into work.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.