Head universal adjusting method of ratchet handle

Abstract

The invention relates to the technical field of manual hardware tools, in particular to a universal head adjusting method of a ratchet handle. Comprising a handle and a ratchet wheel assembly, a swing ring is additionally arranged between the handle and the ratchet wheel assembly, the handle and the swing ring are rotationally connected in the longitudinal direction, and the swing ring and the ratchet wheel assembly are rotationally connected in the transverse direction. And other auxiliary accessories do not need to be added, and the device can be used by rotating the angle between the ratchet wheel assembly and the handle. The handle is connected with the swing ring through the two longitudinal rotating pins, the swing ring is connected with the ratchet wheel combination body through the two transverse pin shafts, at the moment, the ratchet wheel combination body can achieve certain universal swing relative to the handle, and the ratchet wheel combination body and the handle can be used at any position within a specified swing angle. When a workpiece rotating shaft needing to be driven is not perpendicular to the rotating plane of the handle, the device can be used without adding other auxiliary accessories, and the use range is widened.

Description

Technical field:

[0001] The invention relates to the technical field of manual hardware tools, and in particular to a universal adjustment method for the head of a ratchet handle. Background technology:

[0002] At present, the existing ratchet handles on the market have structures such as the patent application with publication number CN1516637A, which discloses a ratchet head and shell assembly, and the patent application with publication number CN103286717A, which discloses a reversing ratchet wrench. Both of them have an internal ratchet structure and use a drive head to drive the workpiece. However, the drive head and the handle head are both fixed connection structures, and the angle between the drive head and the handle head cannot be adjusted. The handle can only be used when the workpiece rotation axis is perpendicular to the handle rotation plane. When the workpiece rotation axis to be driven is not perpendicular to the handle rotation plane, and the rotation space is insufficient to add other auxiliary accessories, the ordinary ratchet handle cannot be used and its scope of use is limited.

[0003] In summary, how to achieve the angle adjustment of the ratchet handle head has become a technical problem that urgently needs to be solved in the industry. Summary of the invention:

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a universal adjustment method for the head of a ratchet handle, which solves the problem that the angle between the drive head and the handle head cannot be adjusted and the use range is limited.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A universal adjustment method for the head of a ratchet handle includes a handle and a ratchet assembly. A swing ring is added between the handle and the ratchet assembly, the handle and the swing ring are rotationally connected in the longitudinal direction, and the swing ring and the ratchet assembly are rotationally connected in the transverse direction. When the rotation axis of a workpiece to be driven is not perpendicular to the rotation plane of the handle, no other auxiliary accessories need to be added, and the ratchet assembly can be used by rotating the angle between the ratchet assembly and the handle.

[0007] The head of the handle is provided with a circular hole, the swing ring is placed in the circular hole, the head of the handle is connected to the swing ring through two longitudinal rotating pins, and the swing ring swings freely around the longitudinal rotating pins.

[0008] The swing ring is in the shape of a circular ring, the ratchet assembly is placed in the swing ring, the swing ring and the ratchet assembly are connected through two transverse rotating pins, and the ratchet assembly swings freely around the transverse rotating pins.

[0009] The head side wall of the handle is symmetrically provided with two holes perpendicular to the handle axis, and the side wall of the swing ring is provided with two holes perpendicular to the handle axis at corresponding positions. Two longitudinal rotation pins are respectively inserted into the two holes on the same side to rotationally connect the handle and the swing ring.

[0010] The side wall of the swing ring is symmetrically provided with two holes parallel to the handle axis, and the side wall of the ratchet assembly is provided with two holes parallel to the handle axis at corresponding positions. Two transverse rotating pins are respectively inserted into the two holes on the same side to rotationally connect the swing ring and the ratchet assembly.

[0011] The two longitudinal rotation pins and the two transverse rotation pins are arranged in a cross shape.

[0012] The ratchet assembly includes an outer shell and an inner shell. The outer shell is cylindrical, and a gear ring is provided on the inner wall of the outer shell. A driving square head is provided at the front end of the inner shell. A pawl is installed on one side of the inner shell through a pin shaft. Ratchet teeth that can mesh with the gear ring are respectively provided at both ends of the pawl. A reversing shaft is provided at the center hole of the inner shell and the driving square head. A blind hole is provided at the position of the reversing shaft corresponding to one end of the pawl. A compression spring and a push pin are provided in the blind hole, and the push pin is tightly fitted with the pawl.

[0013] The side wall of the driving square head is provided with a limiting hole, and two arc-shaped reversing grooves are provided at positions corresponding to the limiting holes on the reversing shaft, and steel balls are installed between the arc-shaped reversing grooves and the limiting holes.

[0014] The reversing shaft is provided with a sunken groove which is connected with the arc-shaped reversing groove, and a spring is provided between the shaft shoulder of the reversing shaft and the step of the center hole of the driving square head.

[0015] A knob is provided at one end of the reversing shaft.

[0016] The present invention adopts the above scheme and has the following beneficial effects:

[0017] By setting a swing ring, the handle and the swing ring are connected by two longitudinal swivel pins, and the swing ring can swing freely around the longitudinal swivel pin. The swing ring and the ratchet assembly are connected by two transverse pin shafts, and the ratchet assembly can swing freely around the transverse pin shaft. At this time, the ratchet assembly can achieve a certain universal swing relative to the handle, so that the ratchet assembly and the handle can be used at any position within the specified swing angle. When the rotating axis of the workpiece to be driven is not perpendicular to the rotating plane of the handle, it can be used without adding other auxiliary accessories, thereby expanding the scope of use. Description of the drawings:

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the swing ring of the present invention.

[0020] Figure 3 It is a schematic cross-sectional view of the ratchet assembly of the present invention.

[0021] Figure 4 It is a three-dimensional schematic diagram of the internal structure of the ratchet assembly of the present invention.

[0022] Figure 5 It is a structural schematic diagram of the reversing shaft of the present invention.

[0023] Figure 6 It is a schematic structural diagram of the ratchet of the present invention.

[0024] In the figure, 1, handle, 2, swing ring, 3, longitudinal swivel pin, 4, ratchet assembly, 5, transverse swivel pin, 6, outer shell, 7, inner shell, 8, gear ring, 9, driving square head, 10, pin shaft, 11, pawl, 12, ratchet, 13, reversing shaft, 14, compression spring, 15, top pin, 16, limit hole, 17, arc-shaped reversing groove, 18, steel ball, 19, sink groove, 20, spring, 21, knob. Specific implementation method:

[0025] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0026] like Figure 1-6 As shown, a universal adjustment method for the head of a ratchet handle includes a handle 1 and a ratchet assembly 4. By adding a swing ring 2 between the handle 1 and the ratchet assembly 4, the handle 1 and the swing ring 2 are rotationally connected in the longitudinal direction, and the swing ring 2 and the ratchet assembly 4 are rotationally connected in the transverse direction. When the rotating axis of the workpiece to be driven is not perpendicular to the rotating plane of the handle 1, there is no need to add other auxiliary accessories, and the ratchet assembly 4 can be used by rotating the angle between the handle 1.

[0027] The head of the handle 1 is provided with a circular hole, and the swing ring 2 is placed in the circular hole. The head of the handle 1 is connected to the swing ring 2 through two longitudinal rotation pins 3, and the swing ring 2 swings freely around the longitudinal rotation pins 3.

[0028] The swing ring 2 is in the shape of a circular ring, and the ratchet assembly 4 is placed in the swing ring 2. The swing ring 2 and the ratchet assembly 4 are connected by two transverse rotating pins 5. The ratchet assembly 4 can swing freely around the transverse rotating pins 5. After the installation is completed, the ratchet assembly 4 and the handle 1 can achieve a certain universal swing.

[0029] The head side wall of the handle 1 is symmetrically provided with two holes perpendicular to the handle axis, and the side wall of the swing ring 2 is provided with two holes perpendicular to the handle axis at corresponding positions. Two longitudinal rotation pins 3 are respectively inserted into the two holes on the same side to rotationally connect the handle 1 and the swing ring 2.

[0030] The side wall of the swing ring 2 is symmetrically provided with two holes parallel to the handle axis, and the side wall of the ratchet assembly 4 is provided with two holes parallel to the handle axis at the corresponding position. Two transverse rotating pins 5 are respectively inserted into the two holes on the same side to rotationally connect the swing ring 2 and the ratchet assembly 4.

[0031] The two longitudinal swing pins 3 and the two transverse swing pins 5 are arranged in a cross shape.

[0032] The ratchet assembly 4 includes an outer shell 6 and an inner shell 7. The outer shell 6 is cylindrical, and a gear ring 8 is provided on the inner wall of the outer shell 6. A driving square head 9 is provided at the front end of the inner shell 7. A pawl 11 is installed on one side of the inner shell 7 through a pin shaft 10. Both ends of the pawl 11 are respectively provided with ratchet teeth 12 that can mesh with the gear ring 8. A reversing shaft 13 is provided at the center hole of the inner shell 7 and the driving square head 9. A blind hole is provided at the position of the reversing shaft 13 corresponding to one end of the pawl 11. A compression spring 14 and a push pin 15 are provided in the blind hole. The push pin 15 is pressed and matched with the pawl 11. The compression spring 14 pushes the push pin 15 under its own elastic action, and the push pin 15 then presses the pawl 11, so that the ratchet teeth 12 at one end of the pawl 11 mesh with the gear ring 8, thereby realizing the ratchet function.

[0033] The side wall of the driving square head 9 is provided with a limiting hole 16, and two arc-shaped reversing grooves 17 are provided at positions corresponding to the limiting holes 16 on the reversing shaft 13, and steel balls 18 are installed between the arc-shaped reversing grooves 17 and the limiting holes 16, and the limiting holes 16 can prevent the steel balls 18 from falling out. When the reversing shaft 13 is rotated, when the steel balls 18 enter from one arc-shaped reversing groove 17 to another arc-shaped reversing groove 17, the ejector pin 15 can be moved from one end of the pawl 11 to the other end, thereby realizing the reversing function of the ratchet.

[0034] The reversing shaft 13 is provided with a sink groove 19 connected to the arc-shaped reversing groove 17, and a spring 20 is provided between the shaft shoulder of the reversing shaft 13 and the step of the center hole of the driving square head 9. When the reversing shaft 13 is slightly pressed, the steel ball 18 partially enters the sink groove 19, so that the exposed height of the steel ball 18 is reduced, and then the sleeve used can be installed on the rotating square head 9 as needed, and then the reversing shaft 13 is loosened, and the reversing shaft 13 is reset under the action of the spring 20, and the steel ball 18 is reset under the pushing action of the arc-shaped reversing groove 17. The sleeve is installed by the cooperation of the steel ball 18 and the sleeve. After the sleeve is fitted with the workpiece, the rotating handle 1 can be screwed. When the reversing shaft 13 is pressed hard, the steel ball 18 can completely enter the sink groove 19, and at this time, the reversing shaft 13 can be pulled out of the center hole of the inner shell 7 as a whole, so as to achieve quick disassembly and assembly.

[0035] A knob 21 is disposed at one end of the reversing shaft 13 , and the reversing shaft 13 can be easily rotated by the knob 21 .

[0036] Working principle:

[0037] When in use, since the handle 1 and the swing ring 2 are connected by two longitudinal swivel pins 3, the swing ring 2 can swing freely around the longitudinal swivel pin 3. Since the swing ring 2 and the ratchet assembly 4 are connected by two transverse pin shafts 5, the ratchet assembly 4 can swing freely around the transverse pin shaft 5. After assembly, the ratchet assembly 4 can achieve a certain universal swing relative to the handle 1. When the rotating axis of the workpiece to be driven is not perpendicular to the rotating plane of the handle 1, there is no need to add other auxiliary accessories, and it can be used by rotating the angle between the ratchet assembly 4 and the handle 1.

[0038] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0039] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A method for universal adjustment of the head of a ratchet handle, characterized in that: It includes a handle and a ratchet assembly. By adding a swing ring between the handle and the ratchet assembly, the handle and the swing ring are rotationally connected in the longitudinal direction, and the swing ring and the ratchet assembly are rotationally connected in the transverse direction. When the rotating axis of the workpiece to be driven is not perpendicular to the rotating plane of the handle, there is no need to add other auxiliary accessories, and the ratchet assembly can be used by rotating the angle between the ratchet assembly and the handle.

2. A method for universal adjustment of the head of a ratchet handle according to claim 1, characterized in that: The head of the handle is provided with a circular hole, the swing ring is placed in the circular hole, the head of the handle is connected to the swing ring through two longitudinal rotating pins, and the swing ring swings freely around the longitudinal rotating pins.

3. A method for universal adjustment of the head of a ratchet handle according to claim 2, characterized in that: The swing ring is in the shape of a circular ring, the ratchet assembly is placed in the swing ring, the swing ring and the ratchet assembly are connected through two transverse rotating pins, and the ratchet assembly swings freely around the transverse rotating pins.

4. The method for universal adjustment of the head of a ratchet handle according to claim 2, characterized in that: The head side wall of the handle is symmetrically provided with two holes perpendicular to the handle axis, and the side wall of the swing ring is provided with two holes perpendicular to the handle axis at corresponding positions. Two longitudinal rotation pins are respectively inserted into the two holes on the same side to rotationally connect the handle and the swing ring.

5. The method for universal adjustment of the head of a ratchet handle according to claim 3, characterized in that: The side wall of the swing ring is symmetrically provided with two holes parallel to the handle axis, and the side wall of the ratchet assembly is provided with two holes parallel to the handle axis at corresponding positions. Two transverse rotating pins are respectively inserted into the two holes on the same side to rotationally connect the swing ring and the ratchet assembly.

6. The method for universal adjustment of the head of a ratchet handle according to claim 3, characterized in that: The two longitudinal rotation pins and the two transverse rotation pins are arranged in a cross shape.

7. The method for universal adjustment of the head of a ratchet handle according to claim 1, characterized in that: The ratchet assembly includes an outer shell and an inner shell. The outer shell is cylindrical, and a gear ring is provided on the inner wall of the outer shell. A driving square head is provided at the front end of the inner shell. A pawl is installed on one side of the inner shell through a pin shaft. Ratchet teeth that can mesh with the gear ring are respectively provided at both ends of the pawl. A reversing shaft is provided at the center hole of the inner shell and the driving square head. A blind hole is provided at the position of the reversing shaft corresponding to one end of the pawl. A compression spring and a push pin are provided in the blind hole, and the push pin is tightly fitted with the pawl.

8. The method for universal adjustment of the head of a ratchet handle according to claim 7, characterized in that: The side wall of the driving square head is provided with a limiting hole, and two arc-shaped reversing grooves are provided at positions corresponding to the limiting holes on the reversing shaft, and steel balls are installed between the arc-shaped reversing grooves and the limiting holes.

9. A method for universal adjustment of the head of a ratchet handle according to claim 8, characterized in that: The reversing shaft is provided with a sunken groove which is connected with the arc-shaped reversing groove, and a spring is provided between the shaft shoulder of the reversing shaft and the step of the center hole of the driving square head.

10. The method for universal adjustment of the head of a ratchet handle according to claim 7, characterized in that: A knob is provided at one end of the reversing shaft.

Images