TWM611912U - Two-way ratchet wrench structure - Google Patents

Abstract

A two-way ratchet wrench includes a handle unit, a positioning buckle, a first detent block, a second detent block, an elastic element and a ratchet head. The handle unit includes a ring groove and a recess. The positioning buckle can be elastically arranged in the ring groove. The first detent block and the second detent block can be elastically stacked on the cavity. The outer peripheral surface of the ratchet head is formed with a ratchet tooth portion and a positioning groove. The ratchet head can move between a first position and a second position along a top and bottom direction. In the first position, the positioning groove Slidably connected to the positioning buckle, and the first detent block is engaged with the ratchet part, in the second position, the positioning groove is separated from the positioning buckle, and the second detent block is engaged with the ratchet unit.

Description

Two-way ratchet wrench

This creation is about a hand tool, especially a two-way ratchet wrench.

1 and 2, the existing two-way ratchet wrench 1 includes a body 11, a ratchet 12, two ratchet blocks 13, two compression springs 14, a reversing button 15, and a bottom plate (not shown) . The main body 11 has a receiving groove 110 at the front end, and the ratchet wheel 12 is rotatably installed in the receiving groove 110 and used for socketing a tool bit 16. The ratchet blocks 13 are symmetrically disposed in the accommodating groove 110, and each ratchet block 13 is pivotally disposed on the body 11 and used for meshing with the ratchet wheel 12, and the compression springs 14 respectively spring against Between the ratchet blocks 13 and the main body 11, and the compression springs 14 respectively provide the ratchet blocks 13 with potential energy for constant movement toward the ratchet wheel 12. The reversing button 15 is rotatably mounted on the main body 11 and selectively pushes one of the ratchet blocks 13 away from the ratchet wheel 12. The reversing button 15 has a pushing arc surface 151 and two opposing surfaces The inclined abutting surface 152 is used for pushing the arcuate surfaces 151 to push the ratchet blocks 13, and the abutting surfaces 152 are respectively used for the ratchet blocks 13 to abut. The bottom plate is detachably installed on the main body 11 and closes the accommodating slot 110 for the tool bit 16 to pass through.

As shown in Fig. 1, when the reversing button 15 is moved until the pushing arc surface 151 pushes against the ratchet block 13 on the right, the ratchet block 13 on the right will disengage from the ratchet 12, and the ratchet block 13 on the left The ratchet block 13 and the ratchet 12 mesh with each other. At this time, the ratchet 12 can rotate clockwise in one direction; on the contrary, as shown in FIG. 2, when the reversing button 15 is moved to the pushing arc 151 When pushed against the ratchet block 13 on the left, the ratchet block 13 on the left disengages from the ratchet 12, and the ratchet block 13 on the right meshes with the ratchet 12. At this time, the ratchet 12 can rotate counterclockwise in one direction. Whirl.

Although the two-way ratchet wrench 1 has the above-mentioned use characteristics, in addition to the necessary elements to achieve the one-way rotation of the ratchet 12, it is also necessary to close the bottom plate of the accommodating groove 110 and to fix the bottom plate and the reversing button 15 The number of screws (not shown in the figure) not only has a large number of components, but also causes more assembly processes and a longer assembly time.

[Creation content]

Therefore, the purpose of this creation is to provide a two-way ratchet wrench that has a simple structure and can simplify the assembly process.

Therefore, the two-way ratchet wrench of this creation includes a handle unit, a positioning buckle, a first detent block, a second detent block, and a ratchet head.

The handle unit has a ratchet groove surrounded and defined by an inner wall surface, the inner wall has a circumferential groove extending radially outward from the ratchet groove, and a cavity communicating with the ratchet groove. The ring groove and the cavity are spaced apart in a top and bottom direction. The positioning buckle matches the shape of the ring groove and can be elastically arranged in the ring groove. The The first detent block can be elastically arranged in the cavity. The second detent block can be elastically arranged in the cavity and is stacked on the first detent block along the top and bottom direction.

The ratchet head is movably arranged in the ratchet groove along the top and bottom direction and includes a ratchet head, the ratchet head is meshed with the first detent block or the second detent block, and the outer peripheral surface of the ratchet head is formed with a The ratchet tooth portion accommodated in the ratchet groove, and a positioning groove spaced from the ratchet tooth portion in the top and bottom direction, the ratchet head can be pressed at a first position and a position relative to the handle unit Move between the second position. When in the first position, the positioning groove is slidably connected to the positioning buckle, and the first detent block is engaged with the ratchet part, and the ratchet head can rotate in one direction. In the second position, the positioning groove is separated from the positioning buckle, and the second detent block is engaged with the ratchet part, so that the ratchet head can rotate in another direction in one direction.

The effect of this creation is that when assembling this creation, as long as the positioning buckle, the first locking block and the second locking block, and the ratchet head are installed in the handle unit in sequence, no screw lock is required. The assembly can be completed. Therefore, this creation can simplify the assembly process, the assembly speed is fast and the structure is simple. At the same time, this creation uses the design in which the first locking block and the second locking block are superimposed along the top and bottom direction, and the rotation direction of the ratchet head can be switched by simply pressing the ratchet head. The intuition of this creation The pressing operation is quite convenient.

1: Two-way ratchet wrench

11: body

110: accommodating slot

12: Ratchet

13: ratchet block

14: Compression spring

15: Reversing button

151: Push to the arc

152: Abutment Surface

16: Tool head

2: Handle unit

21: bottom surface

22: top surface

23: inner wall

230: Ratchet slot

231: ring groove

232: cavities

24: Outer wall

3: positioning buckle

31: Circular cross section

4: The first moving block

41: Detent teeth

42: accommodating part

43: Wall

5: The second moving block

51: Click the tooth part

52: accommodating part

53: Wall

6: Ratchet head

61: inner peripheral surface

610: drive hole

62: Outer peripheral surface

622: Shield

63: limit groove

631: limit buckle

64: First Push

65: Ratchet

66: Stop the groove

67: Second Push

68: positioning groove

C: axis

7: Elastic element

X: front and back direction

Y: left and right direction

Z: Top and bottom direction

Other features and effects of this creation will be clearly presented in the implementation with reference to the drawings, among which:

FIG. 1 is an operation schematic diagram of a conventional two-way ratchet wrench, illustrating that a reversing button is rotated to disengage a ratchet block on the right side from a ratchet wheel, and a ratchet block on the left side meshes with the ratchet wheel;

2 is a schematic diagram of the operation of the conventional two-way ratchet wrench, illustrating that the reverse rotation of the reversing button causes the ratchet block on the left to disengage from the ratchet, and the ratchet block on the right to mesh with the ratchet;

Figure 3 is an incomplete exploded view of the creation of the two-way ratchet wrench in this creation, illustrating that a ratchet head of the creation is installed in a handle unit;

Figure 4 is an exploded perspective view of the first detent block, a second detent block and elastic elements of this creation;

Figure 5 is an incomplete top view illustrating the installation of a first moving block and a second moving block in the handle unit;

Figure 6 is a top view illustrating a combined perspective view of the first detent block, the second detent block and the elastic element;

Figure 7 is an incomplete partial cross-sectional view illustrating that a ratchet head of the ratchet head moves to a first position relative to the handle unit, and the first detent block is engaged with the ratchet head, a positioning of the ratchet head The groove is slidingly connected to a positioning buckle;

Figure 8 is a view similar to Figure 5, illustrating that when the ratchet head is in the second position, the second detent block is engaged with the ratchet head;

Figure 9 is a view similar to Figure 7 illustrating that the ratchet head is in the second position At this time, a blocking groove of the ratchet head is slidably connected to the positioning buckle.

Before this creation is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers. Among them, in order to clearly describe the orientation or direction, when referring to the orientation or direction below, the reference to the orientation is used as the reference. For example, when the right side is mentioned, it refers to the right side of the referenced image.

Refer to Figures 3 to 5, the creation of the two-way ratchet wrench in this creation includes a handle unit 2, a positioning buckle 3, a first detent block 4, a second detent block 5, an elastic element 7 and a ratchet head 6. Among them:

The handle unit 2 has a bottom surface 21 and a top surface 22 oppositely arranged in a top and bottom direction Z, and an inner wall surface 23 and an oppositely arranged inner wall surface 23 connected to the bottom surface 21 and the top surface 22 External wall surface 24. The inner wall surface 23 surrounds and defines a ratchet groove 230, and the ratchet groove 230 extends along the top and bottom direction Z and penetrates the bottom surface 21 and the top surface 22. The inner wall surface 23 also has a circumferential groove 231 and a recess 232 which is adjacent to the top surface 22 and extends radially outward from the ratchet groove 230, and the recess 232 is adjacent to the bottom The surface 21 is spaced from the ring groove 231 in the top and bottom direction Z. The cavity 232 extends rearward from the ratchet groove 230 along a front-to-rear direction X. The cavity 232 is substantially arc-shaped and is connected to the ratchet. The slots 230 are connected. In this creation, the cavity 232 is lower than the ring groove 231, but in other variations, the cavity 232 and the ring groove 231 The height positions of the can also be interchanged, and the cavity 232 can also be changed to the front side of the handle unit 2. Therefore, the positions of the cavity 232 and the ring groove 231 are not the limitation of this creation, and the changes in these positions should all belong to In the category of this creation.

With reference to Figure 7, the positioning buckle 3 matches the shape of the ring groove 231 and can be elastically mounted on the ring groove 231. Preferably, the positioning buckle 3 is a round C-shaped buckle and has Two circular truncated surfaces 31 spaced apart, by applying a force to the positioning buckle 3 and making the circular truncated surfaces 31 move away from each other, the circular truncated surfaces 31 after the force is released will approach and return to each other In its original shape, the positioning buckle 3 has elasticity and can be elastically supported. However, in other variations, the positioning buckle 3 can also be a flat C-shaped buckle, and the shape of the cut-off surface is not a limitation of the present invention.

With reference to Figures 3 to 6, the first detent block 4 is disposed in the cavity 232 and can move relative to the cavity 232. The first detent block 4 has a detent tooth portion 41 and a The accommodating portion 42 on the opposite side of the detent tooth portion 41 has a blocking wall 43 formed at the closed end of the accommodating portion 42 of the first detent block 4.

The second detent block 5 is also arranged in the cavity 232 and is superimposed on the first detent block 4 along the top and bottom direction, and is arranged opposite to the first detent block 4, and can also be opposite to When moving in the cavity 232, the second detent block 5 also has a detent tooth portion 51 and an accommodating portion 52 located on the opposite side of the detent tooth portion 51, and the first detent block 5 is in the accommodating portion A blocking wall 53 is formed at the closed end of 52.

The elastic element 7 is jointly installed in the accommodating portion 42 of the first detent block 4 And the accommodating portion 52 of the second detent block 5, used to respectively push the first detent block 4 and the second detent block 5, so that the two ends of the elastic element 7 abut against the first detent block respectively On the retaining wall 43 of the block 4 and the retaining wall 53 of the second detent block 5, in this embodiment, the elastic element 7 is a rectangular compression coil spring extending in a left-right direction Y, so that its volume is exactly The accommodating space enclosed by the accommodating portion 42 of the first detent block 4 and the accommodating portion 52 of the second detent block 5, so that the elastic element 7 has a constant pushing of the first detent respectively The potential energy of the moving block 41 and the second moving block 51.

The ratchet head 6 is mounted on the handle unit 2 along an axis C and can move relative to the handle unit 2 along the top and bottom direction Z. The axis C is substantially parallel to the top and bottom direction Z. The ratchet head 6 is rotatable Is arranged in the ratchet groove 230, and the ratchet head 6 is operatively movable along the top and bottom direction Z relative to the handle unit 2 and meshes with the first detent block 4 or the second detent block 5, Thereby, the unidirectional rotation direction of the ratchet head 6 is switched.

In this creation, the ratchet head 6 is a kind of ratchet sleeve, and the ratchet head 6 includes an inner circumferential surface 61 and an outer circumferential surface 62 that are arranged in opposite directions. The inner peripheral surface 61 surrounds the axis C and defines a non-circular driving hole 610, and the driving hole 610 is a single-size polygonal hole. The outer peripheral surface 62 has a limiting groove 63, a first pushing portion 64, a ratchet portion 65, a blocking groove 66, and a second retaining groove 63 that are arranged in sequence from the bottom side to the top side and surround the entire circumference. The pushing portion 67, a positioning groove 68 and a retaining edge 622. The outer diameters of the first pushing portion 64 and the second pushing portion 67 are both greater than the maximum outer diameter of the ratchet portion 65, and the first pushing portion 64 and the second pushing portion 67 are respectively located on the ratchet The two opposite sides of section 65, the positioning concave The outer diameter of the groove 68 is substantially equal to the outer diameter of the blocking groove 66, the outer diameter of the positioning groove 68 is smaller than the maximum outer diameter of the ratchet portion 65, and the outer diameter of the retaining edge 622 is larger than that of the ratchet groove 230 the inside diameter of. The ratchet portion 65 is received in the ratchet groove 230 and meshes with the first detent block 4 or the second detent block 5, and a limit buckle ring 631 is detachably disposed in the limit groove 63 The limiting buckle 631 is a flat C-shaped buckle with a non-circular cross section, such as a rectangle. However, in other variations, the positioning buckle 631 can also be a flat C-shaped buckle, as long as its outer diameter is greater than the inner diameter of the ratchet groove 230, and the ratchet head 6 can be prevented from coming out. Limiting effect.

The following first explains the assembly method of this creation, please cooperate with Figure 3 and Figure 7:

The positioning buckle 3 is installed in the ring groove 231 of the handle unit 2 first, and then the first detent block 4 and the second detent block 5 are placed in the cavity 232. Then, install the ratchet head 6 into the handle unit 2 and put the ratchet head 6 into the ratchet groove 230. Finally, the limit buckle 631 is sleeved in the limit groove 63, and the assembly is completed.

Since the outer diameters of the limiting buckle ring 631 and the retaining edge 622 are larger than the inner diameter of the ratchet groove 230, the ratchet head 6 can be limited to the handle unit 2 without falling out after assembly. This creation can complete the assembly without hand tools and screw locking procedures. Therefore, the assembly procedure can be simplified, the assembly speed can be increased, and the manufacturing cost can be reduced.

Next, explain how to use this creation.

Referring to FIGS. 7 and 9, the ratchet head 6 can be pressed and moved relative to the handle unit 2 between a first position (see FIG. 7) and a second position (see FIG. 9).

5 and 7, when the ratchet head 6 is pressed to the first position, the first pushing portion 64 is pushed out of the ratchet groove 230 downward from the bottom surface 21, and the limiting buckle ring 631 is away from the handle On the bottom surface 21 of the unit 2, the retaining edge 622 abuts against the top surface 22 so that the ratchet head 6 is restricted from moving down, and the positioning groove 68 is slidably connected to the positioning buckle 3 to achieve positioning, The first detent block 4 is meshed with the ratchet tooth portion 65, so that the ratchet head 6 can rotate in reverse. At the same time, the second push part 67 abuts against the second detent block 5 and causes the second The detent block 5 retreats, and the elastic element 7 is compressed to have the potential energy of reset.

8 and 9, when the ratchet head 6 is pressed to the second position, the second pushing portion 67 is pushed out of the ratchet groove 230 from the top surface 22, the retaining edge 622 is away from the top surface 22, and the The limiting buckle 631 abuts on the bottom surface 21 so that the ratchet head 6 is restricted from moving upward, and the positioning groove 68 is separated from the positioning buckle 3, and the blocking groove 66 is slidably connected to the positioning The buckle 3 is positioned, the elastic element 7 releases potential energy and pushes the second detent block 5 to advance and engages with the ratchet portion 65, so that the ratchet head 6 can be rotated forward, and the first pushing portion 64 It abuts on the first detent block 4 and causes the first detent block 4 to retreat, and the elastic element 7 is compressed to have the potential energy of resetting.

Since the volume of the elastic element 7 is exactly the accommodating space enclosed by the accommodating portion 42 of the first detent block 4 and the accommodating portion 52 of the second detent block 5, when the elastic element 7 is subjected to When compressed by the thrust of the first or second moving block 4 or 5, there will be no left-right deviation or twisting, and this creation only needs to use the elastic element 7 to push the first moving block respectively 4 advances with the second detent block 5, and meshes with the ratchet portion 65, so it has It has the advantage of simplifying components.

In the process of pressing the ratchet head 6 to switch the rotation direction of the ratchet head 6, as long as the force is applied to overcome the tightening force of the positioning buckle 3, the second pushing portion 67 is moved along the positioning buckle 3 The outer surface slides and pushes the positioning buckle 3, the positioning buckle 3 can selectively sink into the blocking groove 66 or the positioning groove 68, so that the ratchet head 6 is in the first position and the Switch between second positions. In this creation, the rotation direction of the ratchet head 6 can be switched by an intuitive pressing operation, which is quite simple for the user, and can be operated with one hand, which is more convenient to use.

It should be noted that this creation utilizes the positioning groove 68 and the blocking groove 662 to selectively slidably connect to the positioning buckle 3, and has the function of bilateral positioning. Therefore, in addition to using a pressing method to make the ratchet head 6 In addition to reversing, the user can turn the handle unit 2 upside down and hold it, which can also achieve the same effect of converting the rotation of the ratchet head 6. This creation has the advantage of two-way use.

It should also be noted that this creation is a detachable two-way ratchet wrench. When the parts are worn and need to be replaced, as long as the limit buckle 631 is removed, the ratchet head 6 and the first detent can be moved. The block 4, the second detent block 5, and the positioning buckle 3 are disassembled and replaced. Therefore, the present invention has the advantages of easy maintenance and prolonged service life.

In summary, the two-way ratchet wrench of this creation can simplify the assembly process, increase the speed of assembly, and reduce the manufacturing cost. At the same time, this creation uses the first moving block 4 and the second moving block 5 along the top and bottom direction Z Overlapping, just press the ratchet head 6 to switch The rotation direction of the ratchet head 6 and the intuitive pressing operation are quite convenient, so it can indeed achieve the purpose of cost creation.

However, the above are only examples of this creation. When the scope of implementation of this creation cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application for this creation and the content of the patent specification still belong to This creation patent covers the scope.

2: Handle unit

21: bottom surface

22: top surface

23: inner wall

230: Ratchet slot

231: ring groove

232: cavities

24: Outer wall

3: positioning buckle

4: The first moving block

5: The second moving block

51: Detent teeth

52: accommodating part

53: Wall

6: Ratchet head

61: inner peripheral surface

610: drive hole

62: Outer peripheral surface

622: Shield

63: limit groove

631: limit buckle

64: First Push

65: Ratchet

66: Stop the groove

67: Second Push

68: positioning groove

7: Elastic element

C: axis

X: front and back direction

Z: Top and bottom direction

Claims (6)

A two-way ratchet wrench, including: A handle unit having a ratchet groove surrounded and defined by an inner wall surface, the inner wall has a circumferential groove extending radially outward from the ratchet groove, and a cavity communicating with the ratchet groove, the The ring groove and the recess are spaced apart in a top and bottom direction; A positioning buckle that matches the shape of the ring groove and can be elastically set in the ring groove; A first detent block is arranged in the cavity and movable relative to the cavity. The first detent block has a detent tooth part for engaging with the ratchet head and a detent tooth located at the detent tooth The accommodating part on the opposite side of the part; A second detent block is also arranged in the cavity and superimposed on the first detent block along the top and bottom direction, and is arranged opposite to the first detent block, and can also be opposite to the depression When the hole moves, the second detent block also has a detent tooth part for engaging with the ratchet head and a accommodating part located on the opposite side of the detent tooth part; An elastic element is jointly installed in the accommodating portion of the first and second detent blocks to respectively push the first and second detent blocks; and A ratchet head is movably arranged in the ratchet groove along the top and bottom direction, the ratchet head is meshed with the first detent block or the second detent block, and the outer peripheral surface of the ratchet head is formed with a accommodating The ratchet part in the ratchet groove, and a positioning groove spaced from the ratchet part in the top and bottom direction, the ratchet head can be pressed in a first position and a second position relative to the handle unit In the first position, the positioning groove is slidably connected to the positioning buckle, and the first detent block is engaged with the ratchet part, and the ratchet tool head can rotate in one direction. In the second position, the positioning groove is separated from the positioning buckle, and the second detent block is engaged with the ratchet part, so that the ratchet head can rotate in one direction in another direction. The two-way ratchet wrench according to claim 1, wherein the outer peripheral surface of the ratchet head is further formed with a first pushing portion and a second pushing portion located on two opposite sides of the ratchet portion, the second pushing portion The abutting portion is located between the positioning groove and the ratchet portion. In the first position, the second abutting portion abuts against the second detent block, and in the second position, the first abutting portion Abuts against the first detent block. The two-way ratchet wrench according to claim 2, wherein the outer peripheral surface of the ratchet head is also formed with a blocking groove between the ratchet part and the second pushing part, and when in the second position, the blocking groove The recessed groove is slidably connected to the positioning buckle. The two-way ratchet wrench according to claim 2, wherein the ratchet head is detachably mounted on the handle unit, the outer peripheral surface of the ratchet head is also formed with at least one limiting groove, and the two-way ratchet wrench further includes at least one The limit buckle ring is detachably arranged in the limit groove, and the at least one limit buckle ring is used to abut the handle unit. The two-way ratchet wrench according to claim 1, wherein the first detent block is formed with a blocking wall at one end of the accommodating part, and the second detent block is also formed with a blocking wall at one end of the accommodating part, so that the elastic element The two ends respectively abut against the blocking wall of the first detent block and the blocking wall of the second detent block. The two-way ratchet wrench according to claim 1, wherein the elastic element is a rectangular compression coil spring so that its volume is exactly the size of the first detent block The accommodating space enclosed by the accommodating part and the accommodating part of the second detent block.

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