Ratchet handle with head capable of swinging universally

Abstract

The utility model relates to the technical field of manual hardware tools, in particular to a ratchet handle with the head capable of swinging universally. Comprising a handle, a round hole is formed in the head of the handle, a swing ring is placed in the round hole, the head of the handle is connected with the swing ring through two longitudinal rotating pins, and the swing ring freely swings around the longitudinal rotating pins; the swing ring is in a circular ring shape, the ratchet wheel combination body is placed in the swing ring, the swing ring is connected with the ratchet wheel combination body through the two transverse rotating pins, and the ratchet wheel combination body freely swings around the transverse rotating pins. The swing ring can freely swing around the longitudinal rotating pin, the ratchet wheel combination body can freely swing around the transverse pin shaft, 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. And the device can be used without adding other auxiliary accessories, so that the application range is expanded.

Description

Technical Field:

[0001] The utility model relates to the technical field of manual hardware tools, in particular to a ratchet handle with a head that can swing in all directions. Background Art:

[0002] At present, the existing ratchet handles on the market, such as the patent application with the publication number CN1516637A, disclose a ratchet head and housing assembly, and another patent application with the publication number CN103286717A discloses a reversing ratchet wrench. Both of them drive the workpiece through a ratchet structure inside and use a driving head. However, the connection structure between the driving head and the handle head is a fixed connection structure, and the angle between the driving head and the handle head cannot be adjusted. It can only be used when the rotation axis of the workpiece is perpendicular to the rotation plane of the handle. When the rotation axis of the workpiece to be driven is not perpendicular to the rotation plane of the handle during use and there is not enough space to add other auxiliary accessories, this ordinary ratchet handle cannot be used, and its application range 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 Utility Model:

[0004] The utility model provides a ratchet handle with a head that can swing in all directions to make up for the deficiencies of the prior art and solve the problems that the angle between the driving head and the handle head in the past cannot be adjusted and the application range is limited.

[0005] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0006] A ratchet handle with a head that can swing in all directions includes a handle. A round hole is provided at the head of the handle, and a swing ring is placed in the round hole. The head of the handle and the swing ring are connected by two longitudinal pins, and the swing ring can swing freely around the longitudinal pins. The swing ring is in a circular ring shape, and a ratchet assembly is placed in the swing ring. The swing ring and the ratchet assembly are connected by two transverse pins, and the ratchet assembly can swing freely around the transverse pins.

[0007] Two holes perpendicular to the axis of the handle are symmetrically provided on the side wall of the head of the handle, and two holes perpendicular to the axis of the handle are provided at the corresponding positions on the side wall of the swing ring. The two longitudinal pins are respectively inserted into the two holes on the same side to rotatably connect the handle and the swing ring.

[0008] Two holes parallel to the axis of the handle are symmetrically provided on the side wall of the swing ring, and two holes parallel to the axis of the handle are provided at the corresponding positions on the side wall of the ratchet assembly. The two transverse pins are respectively inserted into the two holes on the same side to rotatably connect the swing ring and the ratchet assembly.

[0009] The two longitudinal pins and the two transverse pins are arranged in a cross shape.

[0010] The ratchet assembly includes an outer shell and an inner shell. The outer shell is cylindrical, and a toothed 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. One side of the inner shell is provided with a pawl through a pin shaft. Ratchet teeth that can engage with the toothed ring are provided at both ends of the pawl. A reversing shaft is provided in the central holes 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 top pin are provided in the blind hole, and the top pin is in press fit with the pawl.

[0011] A limiting hole is provided on the side wall of the driving square head, and two arc-shaped reversing grooves are provided on the reversing shaft at positions corresponding to the limiting hole. A steel ball is installed between the arc-shaped reversing groove and the limiting hole.

[0012] A sinking groove communicating with the arc-shaped reversing groove is provided on the reversing shaft, and a spring is provided between the shaft shoulder of the reversing shaft and the step of the central hole of the driving square head.

[0013] A knob is provided at one end of the reversing shaft.

[0014] The utility model adopts the above scheme and has the following beneficial effects:

[0015] By setting the swing ring, the handle and the swing ring are connected by two longitudinal pins. The swing ring can swing freely around the longitudinal pins. The swing ring and the ratchet assembly are connected by two transverse pin shafts. The ratchet assembly can swing freely around the transverse pin shafts. At this time, the ratchet assembly can achieve a certain universal swing relative to the handle, realizing the use of the ratchet assembly and the handle at any position within the specified swing angle. When the rotation axis of the workpiece to be driven is not perpendicular to the rotation plane of the handle, it can be used without adding other auxiliary accessories, expanding the scope of use. Description of the drawings:

[0016] Figure 1 It is a schematic structural diagram of the utility model.

[0017] Figure 2 It is a schematic structural diagram of the swing ring of the utility model.

[0018] Figure 3 It is a schematic cross-sectional structural diagram of the ratchet assembly of the utility model.

[0019] Figure 4 It is a three-dimensional schematic diagram of the internal structure of the ratchet assembly of the utility model.

[0020] Figure 5 It is a schematic structural diagram of the reversing shaft of the utility model.

[0021] Figure 6 It is a schematic structural diagram of the pawl of the utility model.

[0022] In the figure, 1 is the handle, 2 is the swing ring, 3 is the longitudinal pivot pin, 4 is the ratchet assembly, 5 is the transverse pivot pin, 6 is the outer shell, 7 is the inner shell, 8 is the gear ring, 9 is the driving square head, 10 is the pivot pin, 11 is the ratchet pawl, 12 is the ratchet tooth, 13 is the reversing shaft, 14 is the compression spring, 15 is the ejector pin, 16 is the limit hole, 17 is the arc-shaped reversing groove, 18 is the steel ball, 19 is the sunk groove, 20 is the spring, and 21 is the knob. Specific implementation mode:

[0023] To clearly illustrate the technical features of this solution, the present utility model will be described in detail below through specific implementation modes and in conjunction with its accompanying drawings.

[0024] As Figure 1-6 shown, a ratchet handle with a head that can swing in all directions includes a handle 1. A round hole is provided at the head of the handle 1. The swing ring 2 is placed in the round hole. The head of the handle 1 and the swing ring 2 are connected by two longitudinal pivot pins 3. The swing ring 2 swings freely around the longitudinal pivot pins 3; the swing ring 2 is in a circular ring shape. The ratchet assembly 4 is placed inside the swing ring 2. The swing ring 2 and the ratchet assembly 4 are connected by two transverse pivot pins 5. The ratchet assembly 4 swings freely around the transverse pivot pins 5. After installation, the ratchet assembly 4 and the handle 1 can achieve a certain range of omnidirectional swing.

[0025] Two holes perpendicular to the axis of the handle are symmetrically provided on the side wall of the head of the handle 1. Two holes perpendicular to the axis of the handle are provided at the corresponding positions on the side wall of the swing ring 2. The two longitudinal pivot pins 3 are respectively inserted into the two holes on the same side to rotatably connect the handle 1 and the swing ring 2.

[0026] Two holes parallel to the axis of the handle are symmetrically provided on the side wall of the swing ring 2. Two holes parallel to the axis of the handle are provided at the corresponding positions on the side wall of the ratchet assembly 4. The two transverse pivot pins 5 are respectively inserted into the two holes on the same side to rotatably connect the swing ring 2 and the ratchet assembly 4.

[0027] The two longitudinal pivot pins 3 and the two transverse pivot pins 5 are arranged in a cross shape.

[0028] The ratchet assembly 4 includes an outer shell 6 and an inner shell 7. The outer shell 6 is in a cylindrical shape. 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 ratchet pawl 11 is installed on one side of the inner shell 7 through a pivot pin 10. Ratchet teeth 12 that can mesh with the gear ring 8 are respectively provided at both ends of the ratchet pawl 11. A reversing shaft 13 is provided in the central holes 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 ratchet pawl 11. A compression spring 14 and an ejector pin 15 are provided in the blind hole. The ejector pin 15 is in pressing fit with the ratchet pawl 11. The compression spring 14 pushes the ejector pin 15 under its own elastic force, and the ejector pin 15 then presses the ratchet pawl 11, so that the ratchet teeth 12 at one end of the ratchet pawl 11 mesh with the gear ring 8 to achieve the ratchet function.

[0029] The side wall of the driving square head 9 is provided with a limiting hole 16. At the position corresponding to the limiting hole 16 on the reversing shaft 13, two arc-shaped reversing grooves 17 are provided. A steel ball 18 is installed between the arc-shaped reversing groove 17 and the limiting hole 16, and the limiting hole 16 can prevent the steel ball 18 from coming out. When the reversing shaft 13 rotates, when the steel ball 18 enters from one arc-shaped reversing groove 17 into another arc-shaped reversing groove 17, the top pin 15 can be moved from one end of the ratchet pawl 11 to the other end, thereby realizing the reversing function of the ratchet wheel.

[0030] A counterbore 19 communicating with the arc-shaped reversing groove 17 is provided on the reversing shaft 13. A spring 20 is provided between the shaft shoulder of the reversing shaft 13 and the central hole step of the driving square head 9. When the reversing shaft 13 is gently pressed, the steel ball 18 partially enters the counterbore 19, reducing the exposed height of the steel ball 18. Then, the sleeve to be used can be installed on the rotating square head 9 as needed. Then, the reversing shaft 13 is released, and the reversing shaft 13 resets under the action of the spring 20. The steel ball 18 resets 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 sleeved on the workpiece, the handle 1 can be rotated to perform the screwing operation. When the reversing shaft 13 is pressed forcefully, the steel ball 18 can completely enter the counterbore 19. At this time, the whole reversing shaft 13 can be pulled out from the central hole of the inner shell 7 to achieve quick disassembly and assembly.

[0031] One end of the reversing shaft 13 is provided with a knob 21, which facilitates the rotation of the reversing shaft 13.

[0032] Working principle:

[0033] During use, since the handle 1 and the swing ring 2 are connected by two longitudinal pivot pins 3, the swing ring 2 can swing freely around the longitudinal pivot pins 3. Since the swing ring 2 and the ratchet wheel assembly 4 are connected by two transverse pin shafts 5, the ratchet wheel assembly 4 can swing freely around the transverse pin shafts 5. After combination, the ratchet wheel assembly 4 can achieve a certain universal swing relative to the handle 1. When the rotating shaft of the workpiece to be driven is not perpendicular to the rotation plane of the handle 1, without adding other auxiliary accessories, it can be used by rotating the angle between the ratchet wheel assembly 4 and the handle 1.

[0034] The above specific implementation manners cannot be used as a limitation to the protection scope of the present invention. For those skilled in the art of this technology, any alternative improvement or transformation made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0035] Those not detailed in the present invention are all well-known technologies to those skilled in the art of this technology.

Claims

1. A ratchet handle with a head that can swing in all directions, characterized in that: It includes a handle. A round hole is provided at the head of the handle. A swing ring is placed in the round hole. The head of the handle and the swing ring are connected by two longitudinal pins, and the swing ring swings freely around the longitudinal pins. The swing ring is in a circular ring shape. A ratchet assembly is placed in the swing ring. The swing ring and the ratchet assembly are connected by two transverse pins, and the ratchet assembly swings freely around the transverse pins.

2. The ratchet handle with a head capable of swinging in all directions according to claim 1, characterized in that: Two holes perpendicular to the axis of the handle are symmetrically provided on the side wall of the head of the handle. Two holes perpendicular to the axis of the handle are provided at the corresponding positions on the side wall of the swing ring. The two longitudinal pins are respectively inserted into the two holes on the same side to rotatably connect the handle and the swing ring.

3. A ratchet handle with a head that can swing in all directions according to claim 1, characterized in that: Two holes parallel to the axis of the handle are symmetrically provided on the side wall of the swing ring. Two holes parallel to the axis of the handle are provided at the corresponding positions on the side wall of the ratchet assembly. The two transverse pins are respectively inserted into the two holes on the same side to rotatably connect the swing ring and the ratchet assembly.

4. A ratchet handle with a universally swingable head according to claim 1, characterized in that: The two longitudinal pins and the two transverse pins are arranged in a cross shape.

5. A ratchet handle with a head that can swing in all directions according to claim 1, characterized in that: The ratchet assembly includes an outer shell and an inner shell. The outer shell is cylindrical. A toothed 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 toothed ring are respectively provided at both ends of the pawl. A reversing shaft is provided in the central holes 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 top pin are provided in the blind hole. The top pin is in pressing fit with the pawl.

6. A ratchet handle with a universally swingable head according to claim 5, characterized in that: A limiting hole is provided on the side wall of the driving square head. Two arc-shaped reversing grooves are provided at the positions on the reversing shaft corresponding to the limiting hole. Steel balls are installed between the arc-shaped reversing grooves and the limiting hole.

7. A ratchet handle with a universally swingable head according to claim 6, characterized in that: A counterbore communicating with the arc-shaped reversing groove is provided on the reversing shaft. A spring is provided between the shaft shoulder of the reversing shaft and the step of the central hole of the driving square head.

8. A ratchet handle with a head that can swing in all directions according to claim 5, characterized in that: A knob is provided at one end of the reversing shaft.

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