TWI714246B - Nut removal tool - Google Patents

Abstract

A nut removal tool is provided, including a base, a hanger rod, a driving screw and two clamps. The hanger rod is fixed on the base. The driving screw is rotatably disposed on the base. The two clamps are disposed on two side of the base. Each the clamp has a first hole, a second hole and a first abutting portion. The hanger rod is disposed through the first hole. The driving screw is disposed through the second hole. The first abutting portion has a first abutting face, a second abutting face and a third abutting face.

Description

Nut removal tool

The invention relates to a vehicle maintenance tool, in particular to a nut removal tool.

The end of the axle of the car body is equipped with a bearing, and the nut is screwed on the outer side to achieve the purpose of positioning. It is understandable that the nut must be disassembled before the bearing is to be replaced. Therefore, a disassembly tool for the vehicle axle bearing lock cap shown in patent TW472673 was invented to assist in disassembling the nut.

In this type of conventional structure, two different inclined surfaces are provided on a contact surface to apply hexagonal or octagonal nuts. However, the structure of this inclined surface is not conducive to securely clamping the nut. It is easy to shake during the clamping and rotating process, and serious abrasion will occur at the junction of the two inclined surfaces, resulting in damage to the structure and it is impossible to use nuts of different shapes. There are shortcomings that need to be improved.

Therefore, it is necessary to provide a novel and progressive nut removal tool to solve the above-mentioned problems.

The main purpose of the present invention is to provide a nut removal tool. The clamping part is provided with three clamping surfaces and two angles to increase the contact part with the nut to ensure that the nut is stably clamped between the two clamping parts. between.

To achieve the above objective, the present invention provides a nut removal tool for rotating a nut. The nut removal tool includes: a base, a hanging rod, a driving screw and two clamps. The hanging rod passes through the base and is fixed to the base; the drive screw passes through the base and is rotatably positioned on the base; the two clamps are symmetrically arranged on two opposite sides of the base On the side, the two clamping members respectively include a first through hole, a second through hole and a first clamping portion, the suspension rod penetrates the first through hole, the drive screw is screwed to the second through hole, and the first A clamping portion for abutting against the nut, and one side of the two first clamping portions of the two clamping members facing each other includes a first clamping surface, a second clamping surface, and a third clamping surface. The second clamping surface is connected between the first clamping surface and the third clamping surface, the first clamping surface and the second clamping surface have a first angle between them, and the second clamping surface and the third clamping surface clamp A second included angle is provided. The first included angle and the second included angle are used for selectively accommodating a portion of the nut. The angle of the first included angle is equal to the angle of the second included angle, and the angle of the first included angle is not Less than 135 degrees; wherein, the first clamping portion further includes a first lift-off surface and a second lift-off surface, the first lift-off surface is obliquely connected to the first clamping surface, the first lift-off surface A third angle is interposed with the first intersecting surface, the second tilt-off surface is obliquely connected to the third intervening surface, and a fourth angle is interposed between the second intervening surface and the third intersecting surface; wherein, The first lift-off surface and the second lift-off surface extend in directions that are relatively away from each other.

1: seat body

11: Group connector

111: Assembly hole

112: Socket

12: Groove

2: Hanging rod

21: External thread section

31: drive screw

32: Drive head

4: Clip

51: first piercing

52: second piercing

53: The first clamping part

54: Socket hole

61: The first face

62: The second jaw

63: The third surface

64: First Alice

65: The Second Alice

66: The first angle

67: second angle

68: third angle

69: fourth angle

71: The second clamping part

72: convex

73: recess

8: Limit parts

91, 91A, 91B: Nut

92: latch

Figure 1 is a perspective view of an embodiment of the present invention.

Figure 2 is an exploded view of an embodiment of the invention.

Fig. 3 is an enlarged view of the first clamping portion of an embodiment of the present invention.

4 and 5 are schematic diagrams of the operation of an embodiment of the present invention.

Fig. 6 is a schematic diagram of an embodiment of the present invention.

Figure 7 is a cross-sectional view of an embodiment of the present invention in a use state.

Figure 8 is a bottom view of Figure 1;

9 to 11 are schematic diagrams showing nuts of different shapes clamped on the first clamping portion.

Figure 12 is a cross-sectional view of an installation pin of an embodiment of the present invention.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to FIGS. 1 to 12, which show an embodiment of the present invention. The nut removal tool of the present invention is used to rotate a nut 91. The nut removal tool includes: a base 1, a hanging rod 2 , A drive screw 31 and two clamps 4.

The hanging rod 2 passes through the base 1 and is fixed to the base 1, and the drive screw 31 passes through the base 1 and is rotatably positioned on the base 1. The two clamping members 4 are symmetrically arranged on two opposite sides of the base body 1. The two clamping members 4 respectively include a first through hole 51, a second through hole 52, and a first clamping portion 53, the hanging rod 2 The first through hole 51 is penetrated, the driving screw 31 is screwed to the second through hole 52, the first clamping portion 53 is for abutting against the nut 91, and the second clamping member 4 is the first clamping One side of the portion 53 facing each other includes a first clamping surface 61, a second clamping surface 62, and a third clamping surface 63. The second clamping surface 62 is connected to the first clamping surface 61 and the third clamping surface. Between the surfaces 63, the first clamping surface 61 and the second clamping surface 62 define a first included angle 66, the second clamping surface 62 and the third clamping surface 63 define a second included angle 67, the first The included angle 66 and the second included angle 67 are for selectively accommodating a portion of the nut 91.

When in use, by rotating the drive screw 31, the two clamps 4 can be synchronously controlled relative to the seat The body 1 is opened and closed to conform to the radial size of the nut 91 to be clamped; and the two clamping members 4 can be reliably moved along the hanging rod 2 through the first through hole 51, so that the two The clip 4 can have excellent stability during the opening and closing process, and will not oscillate randomly.

Preferably, the angle of the first included angle 66 is equal to the angle of the second included angle 67, in order to provide the same accommodating structure to accommodate the corners of the nut 91, and the first intersecting surface 61 and the second intersecting surface 61 The clamping surface 62 and the third clamping surface 63 can have a symmetrical contact point with the nut 91, and when the two clamping members 4 are clamped against the nut 91, the clamping force can evenly apply force to the nut 91. The cap 91 rotates stably.

It is worth mentioning that the angle of the first included angle 66 is preferably not less than 135 degrees, in order to have a wider margin space to accommodate the corners of the nut 91 of various angles. In addition, the angle of the first included angle 66 is preferably not greater than 140 degrees, so that the first clamping surface 61, the second clamping surface 62, and the third clamping surface 63 can more reliably surround the nut in the circumferential direction 91. Form a structure like a separation wall to block the interference of foreign objects.

In this embodiment, the angle of the first included angle 66 is 135 degrees, and it can be applied to a common shape of the nut 91, such as the hexagonal nut 91 in FIG. 9, and the second intersecting surface 62 stably abuts At the edge of the nut 91, the first included angle 66 and the second included angle 67 can simultaneously accommodate the corners located on opposite sides of the edge of the nut 91, so that when rotating, the entire nut 91 is The edges and the four corners can be stressed at the same time, so that the nut 91 can rotate stably; it can also be applied to the nut 91A which is an octagonal shape as shown in FIG. 10, the first clamping surface 61, the second clamping surface 62 and The third clamping surface 63 can reliably abut against the three sides of the nut 91A, and the first included angle 66 and the second included angle 67 can simultaneously accommodate the two corners between the three sides of the nut 91A, so that When rotating, the entire six sides and four corners of the nut 91A can be stressed at the same time, so that the nut 91A rotates steadily; it can even be applied to the nut 91B that is circular in Figure 11, the first clamp The surface 61 and the third clamping surface 63 can symmetrically abut the nut 91B, and then four symmetrical centers passing through the nut 91B are generated on the entire nut 91B. The action point of the screw cap 91B can rotate stably. In addition, regardless of the above-mentioned usage mode, the two first clamping portions 53 can cover at least 70% of the circumference of the nut 91, 91A, 91B.

To be more specific, the first clamping portion 53 further includes a first tilting-away surface 64 and a second tilting-away surface 65. The first tilting-away surface 64 is obliquely connected to the first clamping surface 61. A third angle 68 is formed between a lifted-off surface 64 and the first clamping surface 61, the second lift-off surface 65 is diagonally connected to the third clamping surface 63, and the second lift-off surface 65 is connected to the third clamping surface. A fourth angle 69 is sandwiched between the surface 63; wherein, the first and second lifted-off surfaces 64 and 65 extend in a direction relatively away from each other. More specifically, the angle of the third included angle 68 is equal to the angle of the fourth included angle 69, and the first lift-off surface 64 can form a corner with the first sandwich surface 61, which can be selectively rotated when rotating The ground presses against the nut 91 to increase the force of the pressing action. Similarly, the corner formed by the second lift-off surface 65 and the third clamping surface 63 is the same.

Preferably, each of the clamping members 4 further includes a second clamping portion 71, the first clamping portion 53 and the second clamping portion 71 are connected in a stepped manner, and the surface of the second clamping portion 71 is provided There are a plurality of convex portions 72 and a plurality of concave portions 73 arranged alternately, and the plurality of convex portions 72 are for abutting against the nut 91; wherein, the distance between the first clamping portion 53 of the two clamping members 4 is greater than the distance between the two clamping members 4 The distance of the second clamping portion 71. It is understandable that the user can use the second clamping portion 71 to clamp the nut 91 according to different environments and changes in needs. The structure of the plurality of convex portions 72 can produce a more concentrated and larger clamping. Solid force to smoothly drive the nut 91 to rotate.

Preferably, the clip 4 further includes two insertion holes 54. The opening direction of the two insertion holes 54 is perpendicular to the opening direction of the first through hole 51, and the two insertion holes 54 are connected by two pins 92. Positioning. When encountering a through hole on the nut 91, the user can insert the through hole through the two plug pins 92 to help strengthen the connection between the clamp 4 and the nut 91.

Furthermore, a driving head 32 is provided on the driving screw 31 to facilitate the user to pass A hand tool is used to drive the driving screw 31 to rotate, wherein the outer diameter of the driving head 32 is not greater than the outer diameter of the driving screw 31. In addition, the driving head 32 and the driving screw 31 are integrally formed to have a relatively strong and durable structure.

More specifically, the nut removal tool further includes a plurality of stoppers 8, the hanging rod 2 includes an external threaded section 21, and the plurality of stoppers 8 can be movably screwed to the external threaded section 21. The clamping member 4 is blocked and restricted, so that the user can locate the position of the clamping member 4 through the plurality of restriction members 8 to avoid the unintended rotation of the driving screw 31 causing the clamping member 4 to move.

In this embodiment, the number of the plurality of limit members 8 is four, and they are respectively located on two opposite sides of the clamping member 4, and can be reliably clamped and positioned against the clamping member 4, making it impossible to arbitrarily front and back. Mobile and excellent stability. Moreover, the color of the plurality of limiting members 8 is preferably different from the color of the two clamping members 4, so that the user can quickly know the position of the plurality of limiting members 8 for quick manipulation.

It should be added that the base 1 includes a set of joints 11, the set of joints 11 includes a polygonal assembly hole 111 and a polygonal outer contour of the plug-in portion 112, the set of connecting holes 111 for the drive tool to plug and connect , The socket 112 is provided for the socket connection of the driving tool, so that the user can choose between two different combinations, and can be selected according to the type of existing hand tools; wherein, the set of sockets 111 are square holes, and the socket 112 is outside The outline is hexagonal.

Preferably, the seat body 1 is further recessed with two symmetrical grooves 12, each of the grooves 12 can be used to accommodate the limiting member 8 when not in use.

Preferably, in the axis direction of the seat body 1, the ratio of the length of the seat body 1 to the length of the clip 4 is between 0.6 and 0.8 to ensure that the seat body 1 has a sufficient ratio The length is for the hand to take and configure the hanging rod 2 and the driving screw 31.

In summary, the nut removal tool of the present invention has a simple structure, convenient operation and reliable action. One clamping portion can increase contact with the nut through the first, second and third clamping surfaces, and the first and second included angles can accommodate the corners of common polygonal nut, so that the two first clamping portions can It has better and stable clamping force to drive the nut to rotate.

1: seat body

111: Assembly hole

112: Socket

2: Hanging rod

31: drive screw

32: Drive head

4: Clip

Claims (7)

A nut removal tool for rotating a nut. The nut removal tool includes: a base; a hanging rod that passes through the base and is fixed to the base; and a drive screw passes through the base. The seat body is rotatably positioned on the seat body; two clamping members are symmetrically arranged on two opposite sides of the seat body, the two clamping members respectively include a first through hole, a second through hole and a first clamping portion , The hanging rod penetrates the first through hole, the driving screw is screwed to the second through hole, the first clamping portion is for abutting against the nut, and the two first clamping portions of the two clamping members are mutually One side facing each other includes a first clamping surface, a second clamping surface, and a third clamping surface. The second clamping surface is connected between the first clamping surface and the third clamping surface. A first angle is formed between the surface and the second clamping surface, and a second angle is formed between the second clamping surface and the third clamping surface. The first angle and the second angle are used to selectively accommodate the nut Wherein, the angle of the first included angle is equal to the angle of the second included angle, and the angle of the first included angle is not less than 135 degrees; wherein, the first clamping portion further includes a first lift-off surface and a first Two lift-off surfaces, the first lift-off surface is diagonally connected to the first clamping surface, a third angle is formed between the first lift-off surface and the first clamping surface, and the second lift-off surface is diagonally connected to The third clamping surface, the second lifted-off surface and the third clamping surface have a fourth included angle; wherein, the first lifted-off surface and the second lifted-off surface extend in a direction relatively away from each other. The nut removal tool according to claim 1, wherein the angle of the first included angle is not greater than 140 degrees. The nut removal tool described in claim 1 further includes a plurality of stoppers, and the hanging rod includes an external thread section, and the plurality of stoppers can be movably screwed on the external thread section to stop the limit Position the clip. The nut removal tool according to claim 1, wherein the base body includes a set of joints, the set of joints includes a polygonal connecting hole and a polygonal outer contour of the plugging part, and the set of connecting holes is for the driving tool to plug in Connect, the plug-in part is used for socket connection of the driving tool. The nut removal tool according to claim 1, wherein the clip further includes two insertion holes, the opening direction of the two insertion holes is perpendicular to the opening direction of the first through hole, and the two insertion holes are for two pins Link positioning. The nut removal tool according to any one of claims 1 to 5, wherein each of the clamping members further includes a second clamping portion, and the first clamping portion and the second clamping portion are connected stepwise, The surface of the second clamping portion is provided with a plurality of convex portions and a plurality of concave portions arranged alternately, and the plurality of convex portions are for abutting against the nut; wherein the distance between the first clamping portion of the two clamping parts is greater than two The distance between the second clamping part of the clamping piece. The nut removal tool according to claim 2, wherein the nut removal tool further includes a plurality of stoppers, the hanging rod includes an external thread section, and the plurality of stoppers can be movably screwed to the external thread Segment and can stop and limit the clamp; the seat body includes a set of joints, the set of joints includes a polygonal assembly hole and a polygonal outer contour of the plug-in part, the set of connecting holes for the drive tool to plug and connect, The plug-in part is used for socket connection of the driving tool; the clip further includes two plug-in holes, the opening direction of the two plug-in holes is perpendicular to the opening direction of the first through hole, and the two plug-in holes are used for connecting and positioning the two pins The angle of the first included angle is 135 degrees; the angle of the third included angle is equal to the angle of the fourth included angle; a driving head is provided on the driving screw, and the outer diameter of the driving head is not greater than the outer diameter of the driving screw; The driving head and the driving screw are integrally formed; the number of the plurality of limiters is four, and two of them are located on the opposite sides of the clamp; the group The connecting hole is a square hole, and the outer contour of the inserting part is a hexagon; the seat body is further recessed with two symmetrically arranged grooves, and each groove is used to accommodate the limiting member; in the seat body In the axial direction, the ratio of the length of the seat to the length of the clip is between 0.6 and 0.8; the color of the plurality of limiters is different from the color of the two clips; the two first clips The part is provided to cover at least 70% of the circumferential direction of the nut.

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