Swing type wrench

Abstract

To obtain a swing type wrench.SOLUTION: A swing type wrench includes a drive head, a handle, a pressing member, and a positioning shaft. The drive head has a first protrusion structure, and an inner side surface of the first protrusion structure has a smooth portion and a tooth-shaped portion. The handle has two second protrusion structures, and the first protrusion structure is installed between the second protrusion structures. The positioning shaft and the pressing member engage with each other, and the pressing member and the positioning shaft are inserted into the first protrusion structure and the second protrusion structure. By this, an angle of the swing type wrench can be flexibly adjusted, and an engagement strength can be increased when a set tilt angle between the drive head and the handle is fixed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a swivel wrench, and more particularly to a swivel wrench whose tilt angle can be flexibly adjusted. [Background technology]

[0002] A swivel wrench is a widely used hand tool, which allows the user to adjust the angle between the drive head and the handle of the swivel wrench to accommodate the angle of the object to be fastened, thereby avoiding the problem of the difficulty of applying force due to spatial limitations. However, the known swivel wrench has some difficult problems to solve both before and during operation. For example, during the operation, it is easy to encounter the problem of the difficulty of fixing the angle between the drive head and the handle due to the application of force, and before using the swivel wrench, it is difficult to adjust the angle between the drive head and the handle.

[0003] Therefore, the development of a swivel wrench that allows easy adjustment of the tilt angle and can stabilize the tilt angle during operation has become an important and urgent problem in the industry. Summary of the Invention

[0004] The present disclosure provides a swivel wrench, which is fitted by inserting a pressing member, a positioning shaft, a first convex structure, and a second convex structure, thereby achieving the effect of flexibly adjusting the tilt angle and stabilizing the tilt angle during the operation.

[0005] An embodiment of the present disclosure provides a swivel wrench, which includes a drive head, a handle, a pressing member, and a positioning shaft. The drive head has a first convex structure, the inner surface of which has a smooth portion and a toothed portion. The handle has two second convex structures, the first convex structure is disposed between the second convex structures. The positioning shaft and the pressing member engage with each other, and the pressing member and the positioning shaft are inserted into the first convex structure and the second convex structure. The length of the toothed portion is L1, and the sum of the lengths of the smooth portion and the toothed portion is L2, which are: It meets the condition JPEG2025028027000002.jpg822.

[0006] In the oscillating wrench according to the embodiment described in the preceding paragraph, the second protrusion structure can have a smooth inner surface and a toothed inner surface, the smooth inner surface corresponding to the smooth portion, and the toothed inner surface corresponding to the toothed portion.

[0007] In the pivot wrench according to the embodiment described in the previous paragraph, the positioning shaft can have a toothed end, which meshes with the toothed inner surface.

[0008] In the oscillating wrench according to the embodiment described in the preceding paragraph, the pressing member may have a first engaging end, the positioning shaft may have a second engaging end, and the first engaging end and the second engaging end may engage with each other.

[0009] In the oscillating wrench according to the embodiment described in the previous paragraph, the first engagement end may be a protruding structure, and the surface of the protruding structure may be smooth or threaded.

[0010] The oscillating wrench according to the embodiment described in the preceding paragraph may further include an elastic member, in which the elastic member is disposed on the smooth end of the positioning shaft.

[0011] In the oscillating wrench according to the embodiment described in the previous paragraph, the pressing member can have a toothed outer surface and a smooth outer surface, the toothed outer surface has a length Ltp, and the pressing member is mounted on one of the second convex structures over a total length Lto, The condition JPEG2025028027000003.jpg850 can be met.

[0012] In the oscillating wrench according to the embodiment described in the previous paragraph, the toothed outer surface of the pressing member can contact an entity of the smooth inner surface of one of the second convex structures.

[0013] In the oscillating wrench according to the embodiment described above, one end of the positioning shaft can have a tapered structure, and the tapered structure is disposed between the toothed end and the smooth end of the positioning shaft.

[0014] In the oscillating wrench according to the embodiment described in the previous paragraph, the angle between the tapered structure and the toothed end is θ, and they can satisfy the condition 30 degrees≦θ≦60 degrees.

[0015] In the swivel wrench according to the embodiment described in the previous paragraph, the taper structure may be a fillet structure. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a three-dimensional view of a swiveling wrench according to one embodiment of the present disclosure. [Diagram 2] FIG. 2 is an exploded view of the swivel wrench according to the embodiment of FIG. 1. [Diagram 3] 2 is another exploded view of the oscillating wrench according to the embodiment of FIG. 1. [Figure 4] FIG. 2 is a cross-sectional view of the swivel wrench according to the embodiment of FIG. 1. [Diagram 5] FIG. 2 is a partial cross-sectional view of the swivel wrench according to the embodiment of FIG. 1. [Figure 6] FIG. 13 is an exploded view of a swiveling wrench in accordance with another embodiment of the present disclosure. [Figure 7] FIG. 7 is a cross-sectional view of the oscillating wrench according to the embodiment of FIG. 6. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0017] Please refer to Figures 1 to 3. Figure 1 is a three-dimensional view of a swivel wrench 100 according to an embodiment of the present disclosure, Figure 2 is an exploded view of the swivel wrench 100 according to the embodiment of Figure 1, and Figure 3 is another exploded view of the swivel wrench 100 according to the embodiment of Figure 1. As can be seen from Figures 1 to 3, the swivel wrench 100 includes a driving head 110, a handle 120, a positioning shaft 130 and a pressing member 140, of which the driving head 110 has a first convex structure 111, the handle 120 has two second convex structures 121, the first convex structure 111 is installed between the second convex structures 121, the pressing member 140 and the positioning shaft 130 are engaged with each other, and the positioning shaft 130 and the pressing member 140 are inserted into the first convex structure 111 and the second convex structure 121.

[0018] When the pressing member 140 is pressed, the included angle between the driving head 110 and the handle 120 can be adjusted, and the set tilt angle between the driving head 110 and the handle 120 can be fixed by the engagement between the positioning shaft 130 and the pressing member 140.

[0019] As can be seen from Figures 2 and 3, the inner surface of the first convex structure 111 has a smooth portion 112 and a toothed portion 113, and the second convex structure 121 can have a smooth inner surface 122 and a toothed inner surface 123, respectively, of which the smooth inner surface 122 corresponds to the smooth portion 112, and the toothed inner surface 123 corresponds to the toothed portion 113.

[0020] Please refer to Fig. 4, which is a cross-sectional view of the oscillating wrench 100 according to the embodiment of Fig. 1, where Fig. 4 shows the oscillating wrench 100 when the pressing member 140 is pressed to perform adjustment. As can be seen from Fig. 4, the positioning shaft 130 can have a toothed end 131 and a smooth end 132, of which the toothed end 131 meshes with the toothed inner surface 123 of the second convex structure 121. Thus, when the pressing member 140 is pressed, the toothed end 131 of the positioning shaft 130 can mesh with the toothed inner surface 123 of the second convex structure 121, thereby adjusting the included angle between the driving head 110 and the handle 120. Furthermore, when the pressing member 140 is not pressed, the toothed end 131 of the positioning shaft 130 can mesh with the toothed portion 113 of the first convex structure 111, and can also mesh with the toothed inner surface 123 of the second convex structure 121, thereby fixing the tilt angle between the drive head 110 and the handle 120 that has been set.

[0021] 2 to 4, the pressing member 140 can have a first engaging end 141, and the positioning shaft 130 can have a second engaging end 133, in which the first engaging end 141 and the second engaging end 133 are engaged with each other, and the first engaging end 141 can have a protruding structure, and the surface of the protruding structure is threaded, that is, the first engaging end 141 and the second engaging end 133 can be engaged in a screw-type manner. This allows the positioning shaft 130 to be tightly coupled with the pressing member 140.

[0022] The oscillating wrench 100 may further include an elastic member 150, which is disposed on the smooth end 132 of the positioning shaft 130, so as to realize the return of the pressing member 140 after it is pressed. Furthermore, the elastic member 150 may be, but is not limited to, a spring.

[0023] 2-4, the smooth portion 112 may have a threaded portion 114, in which the threaded portion 114 is located at one end of the smooth portion 112 and the toothed portion 113 is located at the other end of the smooth portion 112. By providing the threaded portion 114, a connecting member (not shown) may be further provided on the threaded portion 114, thereby adjusting the connection strength between the pressing member 140 and the driving head 110.

[0024] 2, the toothed end 131 of the positioning shaft 130 has a toothed structure 131a, which is disposed at one end following the smooth end 132 of the toothed end 131. In this way, the toothed structure 131a can enhance the effect of toothing between the toothed portion 113 and the toothed inner surface 123.

[0025] As can be seen from FIG. 4, the pressing member 140 can have a toothed outer surface 142 and a smooth outer surface 143, of which the length of the toothed outer surface 142 is Ltp, and the total length of the pressing member 140 placed on one of the second convex structures 121 is Lto, which are JPEG2025028027000004.jpg850 can be satisfied, thereby making it possible to adjust the connection strength between the pressing member 140 and the handle 120 during the pressing process.

[0026] Furthermore, the tooth-like outer surface 142 of the pressing member 140 contacts an entity of the smooth inner surface 122 of one of the second convex structures 121, thereby enhancing the connection strength between the pressing member 140 and the second convex structure 121 when adjusting the included angle between the driving head 110 and the handle 120, and preventing it from loosening and falling off during the process of angle adjustment.

[0027] Please refer to Fig. 5, which is a partial cross-sectional view of the pivot wrench 100 according to the embodiment of Fig. 1. As can be seen from Fig. 5, the length of the toothed portion 113 is L1, and the sum of the lengths of the smooth portion 112 and the toothed portion 113 is L2, which are: JPEG2025028027000005.jpg822, thereby adjusting the connection strength between the positioning shaft 130 and the driving head 110, that is, adjusting the meshing range between the toothed end 131 of the positioning shaft 130 and the toothed portion 113 of the first convex structure 111. EXAMPLES

[0028] Please refer to Fig. 6, which is an exploded view of a swivel wrench 200 according to another embodiment of the present disclosure. As can be seen from Fig. 6, the swivel wrench 200 includes a driving head 210, a handle 220, a positioning shaft 230 and a pressing member 240, in which the driving head 210 has a first convex structure 211, the handle 220 has two second convex structures 221, the first convex structure 211 is disposed between the second convex structures 221, the pressing member 240 and the positioning shaft 230 are engaged with each other, and the positioning shaft 230 and the pressing member 240 are inserted into the first convex structure 211 and the second convex structure 221. Specifically, one end of the handle 220 may be an open end, but is not limited thereto.

[0029] The inner surface of the first convex structure 211 has a smooth portion 212 and a toothed portion (not shown), and the second convex structure 221 can have a smooth inner surface 222 and a toothed inner surface 223, respectively, of which the smooth inner surface 222 corresponds to the smooth portion 212, and the toothed inner surface 223 corresponds to the toothed portion.

[0030] Furthermore, the positioning shaft 230 may have a toothed end 231 and a smooth end 232 , of which the toothed end 231 meshes with the toothed inner surface 223 of the second convex structure 221 .

[0031] The pressing member 240 may have a first engaging end 241, a toothed outer surface 242 and a smooth outer surface 243, and the positioning shaft 230 may have a second engaging end 233, of which the first engaging end 241 and the second engaging end 233 are engaged with each other, the first engaging end 241 may be a protruding structure, and the surface of the protruding structure is smooth, that is, the first engaging end 241 and the second engaging end 233 may be engaged in a fitting manner.

[0032] The pivot wrench 200 may further include an elastic member 250 , which is disposed on the smooth end 232 of the positioning shaft 230 .

[0033] As can be seen from FIG. 6, the toothed end 231 of the positioning shaft 230 has a toothed structure 231 a , of which the toothed structure 231 a is disposed at one end following the smooth end 232 of the toothed end 231 .

[0034] Please refer to FIG. 7, which is a cross-sectional view of the oscillating wrench 200 according to the embodiment of FIG. 6, where FIG. 7 is a conceptual diagram of the oscillating wrench 200 in a state where the pressing member 240 is not pressed. As can be seen from FIG. 6 and FIG. 7, one end of the positioning shaft 230 has a tapered structure 234, in which the tapered structure 234 is disposed between the toothed end 231 and the smooth end 232, and the angle between the tapered structure 234 and the toothed end 231 is θ, which can satisfy the condition of 30 degrees≦θ≦60 degrees. Thus, the tapered structure 234 can enhance the structural strength of the positioning shaft 230. Specifically, the tapered structure 234 can be, but is not limited to, a fillet structure. The fillet structure can further enhance the structural strength and prevent cracking.

[0035] The embodiment in FIG. 6 has the same structures and layouts of other components as the embodiment in FIG. 1, so a description thereof will be omitted here.

[0036] In summary, the combination of the first convex structure, the second convex structure, the pressing member and the positioning shaft of the swivel wrench disclosed herein allows the angle of the swivel wrench to be flexibly adjusted before use, and the engagement strength when fixing the tilt angle between the driving head and the handle after setting can be strengthened, thereby enhancing the stability of operation during use. Furthermore, the length relationship between the toothed portion and the sum of the lengths of the smooth portion and the toothed portion allows the connection strength between the positioning shaft and the driving head to be flexibly adjusted, thereby enhancing the adaptability of operation.

[0037] Although the present invention has been disclosed by the above embodiments, they are not intended to limit the present invention, and any person skilled in the art may make some changes or modifications without departing from the spirit and scope of the present invention, and the protection scope of the present invention shall be as defined by the appended claims. [Explanation of symbols]

[0038] 100, 200 Swing Wrench 110, 210 Drive head 111, 211 First protruding structure 112, 212 smooth part 113 Dentate 114 Threaded part 120, 220 Handle 121, 221 Second convex structure 122, 222 smooth inner surface 123, 223 dentate inner surface 130, 230 Positioning axis 131, 231 dentate end 131a, 231a Tooth matching structure 132, 232 smooth end 133, 233 Second engagement end 234 Tapered structure 140, 240 Pressing member 141, 241 1st engagement end 142, 242 dentate outer surface 143, 243 Smooth outer surface 150, 250 Elastic member L1 Length of the tooth L2 Sum of the length of the smooth and toothed parts Ltp Length of the outer dentition surface Lto is the total length over which the pressing member is installed in one of the second convex structures θ The angle between the tapered structure and the toothed end

Claims

1. a drive head having a first convex structure, an inner surface of the first convex structure having a smooth portion and a toothed portion; a handle having two second convex structures, the first convex structure being disposed between the two second convex structures; A pressing member; a positioning shaft, the positioning shaft being engaged with the pressing member, the pressing member and the positioning shaft being inserted into the first convex structure and the two second convex structures; Wherein, the length of the toothed portion is L1, and the sum of the length of the smooth portion and the toothed portion is L2, which are: This is a swivel wrench that meets the above conditions.

2. 2. The wrench of claim 1, wherein the two second protrusion structures each have a smooth inner surface and a toothed inner surface, the smooth inner surface corresponds to the smooth portion, and the toothed inner surface corresponds to the toothed portion.

3. 3. The articulating wrench of claim 2, wherein said locating shaft has a toothed end, said toothed end meshing with said toothed inner surface.

4. 2. The oscillating wrench of claim 1, wherein the pressing member has a first engagement end, the positioning shaft has a second engagement end, and the first engagement end and the second engagement end engage with each other.

5. 5. The oscillating wrench of claim 4, wherein the first engagement end is a protruding structure, and a surface of the protruding structure is smooth or threaded.

6. 2. The oscillating wrench of claim 1, further comprising a resilient member disposed on the smooth end of the positioning shaft.

7. The pressing member has a toothed outer surface and a smooth outer surface, the toothed outer surface has a length Ltp, and the pressing member has a total length Lto that is installed on one of the two second convex structures, which are 2. The swivel wrench according to claim 1, which satisfies the above conditions.

8. 8. The articulating wrench of claim 7, wherein the toothed outer surface of the pressing member contacts an entity of a smooth inner surface of one of the two second projection structures.

9. 2. The oscillating wrench of claim 1, wherein one end of the positioning shaft has a tapered structure, and the tapered structure is provided between the toothed end and the smooth end of the positioning shaft.

10. 10. The oscillating wrench of claim 9, wherein the angle between the tapered structure and the toothed end is θ, and satisfies the condition: 30 degrees≦θ≦60 degrees.

11. The oscillating wrench of claim 9 , wherein the tapered structure is a fillet structure.

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