CN213352256U

CN213352256U - Bolt and nut taking-out tool

Info

Publication number: CN213352256U
Application number: CN202022068933.8U
Authority: CN
Inventors: 王晓东
Original assignee: Ningbo Snaicy Metal Product Co ltd
Current assignee: Ningbo Snaicy Metal Product Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-06-04
Anticipated expiration: 2030-09-21

Abstract

The utility model provides a bolt and nut takes out instrument, bolt and nut takes out instrument cup joints portion and instrument connecting portion including the front and back connection, the front portion of cup jointing portion is equipped with cup joints the hole, cup joint six on the downthehole wall to cup joint the bellied card strip of axis in hole. The clamping strip of the sleeving part is used for clamping the side wall of the bolt, the abdicating surface is used for protecting the edge of the bolt, the extending part is used for extending the plane where the bolt is located to the plane suitable for operation, and the tool connecting part is used for connecting a rotating tool to take out the worn bolt or nut.

Description

Bolt and nut taking-out tool

Technical Field

The utility model relates to a hardware and tools technical field particularly, relates to a bolt and nut takes out instrument.

Background

Hexagonal bolt and nut are common fastener, and the application scene is very extensive, generally uses the spanner to carry out the tight regulation operation. When the hexagonal bolt and the nut are worn in the using process, the six edges are easy to grind flat after long-term use. The spanner can not be clamped tightly, the spanner can slip when rotating, and the problem that the bolt and the nut can not be taken down is solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how to take out the bolt or the nut of wearing and tearing.

In order to solve the problem, the utility model provides a bolt and nut takes out instrument, the portion of cup jointing and the instrument connecting portion of connecting around including, the front portion of the portion of cup jointing is equipped with cup joints the hole, cup joint six on the hole inside wall to cup joint the bellied card strip of axis in hole.

Compared with the prior art, the utility model discloses a hexagon head that the portion of cup jointing that bolt and nut took out instrument is used for chucking bolt or nut cup joints downthehole six card strips that set up, and when bolt or nut got into and cup jointed the hole, six lateral walls that the card strip can block bolt or nut avoided the edge of bolt or nut, and the card strip effectively transmits the turning force for bolt or nut when taking out the instrument and rotating to take out it.

Optionally, the card strip is inclined away from the axis along the direction of forward extension of the axis.

From this, along the axis after the extending direction cup joint the interval between the card strip and reduce in the hole, the bolt and the nut of being convenient for get into and cup joint the hole, and guarantee that the card strip can with bolt or nut lateral wall laminating chucking.

Optionally, the included angle between the clamping strip and the axis is between 1 and 3 degrees.

From this, guarantee card strip inclination and do not too big, otherwise can influence the chucking effect, lead to skidding.

Optionally, the convex surface of the clamping strip is a circular arc surface.

From this, the card strip of arc surface can be concentrated the stress point on an online, guarantees the chucking effect, and the contact surface of rounding avoids destroying the lateral wall of bolt and nut.

Optionally, in the cup jointing adjacent inside wall between the card strips is the face of stepping down, the face of stepping down is kept away from the axis direction is sunken.

From this, the face of stepping down corresponds with bolt and nut edge position, avoids cup jointing hole and edge contact to produce the interference.

Optionally, the abdicating surface is an arc surface.

Therefore, the cambered abdication surface is easy to machine and form, and the manufacturing cost is reduced.

Optionally, the radian of the abdicating surface is greater than pi/3 and less than pi.

Therefore, the radian of the yielding surface is larger than pi/3, the yielding space is reserved, the edges of the bolt and the nut are ensured not to be in contact with the yielding surface, the radian of the yielding surface is smaller than pi, and the six yielding surfaces are prevented from being overlapped with each other.

Optionally, the tool connecting portion has a hexagonal radial cross-section.

Therefore, the tool connecting part is suitable for being connected with the hexagonal wrench, and the hexagonal wrench can drive the taking-out tool to rotate.

Optionally, the tool connecting portion is provided with a connecting hole.

Therefore, the tool connecting part is suitable for being connected with the socket wrench, and the socket wrench can drive the taking-out tool to rotate.

Optionally, the socket portion and the tool connecting portion are connected by an extension portion.

Therefore, the distance between the tool connecting part and the sleeving part can be increased by arranging the extension part, the operation surface is transferred to a space convenient to operate, and the disassembly operation is facilitated.

Drawings

Fig. 1 is a perspective view of a bolt and nut removing tool in an embodiment of the present invention;

FIG. 2 is a front view of a bolt and nut removing tool according to an embodiment of the present invention;

FIG. 3 is a rear view of a bolt and nut removing tool according to an embodiment of the present invention;

fig. 4 is a left side view of the bolt and nut removing tool according to the embodiment of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 2;

fig. 6 is a structural view of a bolt and nut removing tool according to another embodiment of the present invention.

Description of reference numerals:

1-a sleeve joint part, 11-a sleeve joint hole, 12-a clamping strip, 13-an abdication surface, 2-a tool connecting part, 21-a connecting hole and 3-an extension part.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

The utility model discloses a be provided with coordinate system XYZ in the drawing of embodiment, wherein the place ahead is represented to the forward of X axle, and the back is represented to the reverse of X axle, and right-hand is represented to the forward of Y axle, and the left is represented to the reverse of Y axle, and the top is represented to the forward of Z axle, and the below is represented to the reverse of Z axle.

In this embodiment, a plane defining the opening of the extraction portion perpendicular to the axis of the bolt and nut extraction tool is a front surface, and a plane defining the end of the connection portion perpendicular to the axis of the bolt and nut extraction tool is a rear surface.

In the description herein, references to the description of the terms "an example," "one example," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the example or implementation is included in at least one example or implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

The utility model provides a bolt and nut taking-out tool which is mainly used for mounting and dismounting fasteners such as bolts, nuts and the like, and can also be connected with tools such as various socket wrenches and the like, thereby being beneficial to operation; the model is changeable, and small in size easily carries, and the especially adapted is turned the very narrow and small or sunken very deep bolt or nut in space.

The specific embodiment of the utility model mainly uses the use scene of dismantling the hex bolts to exemplify.

As shown in fig. 1 to 6, the bolt-nut removing tool includes a socket portion 1, a tool connecting portion 2, and an extension portion 3. The sleeving part 1 is arranged at the front end of the bolt and nut taking-out tool and used for clamping a hexagonal head of a bolt; the tool connecting part 2 is arranged at the rear end of the bolt and nut taking-out tool, is provided with a connecting hole 21 and is suitable for being connected with a wrench tool, and the wrench tool can drive the taking-out tool to rotate; the extension part 3 is arranged between the sleeve joint part 1 and the tool connecting part 2 and used for increasing the distance between the tool connecting part 2 and the sleeve joint part 1, so that the plane where the bolt to be taken out is located can be extended to a space suitable for operation, and the disassembly operation is facilitated.

In one embodiment, the socket joint part 1, the tool connecting part 2 and the extension part 3 are of an integrated structure, so that the increase of an outline similar to a cylinder is facilitated, the three parts have the same axis, the screwing is facilitated in the state of connecting a wrench tool, the cylinder can ensure that the interference volume of the socket joint part 1 is minimum when the socket joint part rotates, and the space of a plane where a bolt is located is utilized to the maximum extent.

The front surface of the socket part 1 has a socket hole 11 opened forward for socket and fixing a bolt. The inner side wall of the sleeving hole 11 is provided with six abdicating surfaces 13 and clamping strips 12 which are uniformly and alternately distributed, the abdicating surfaces 13 are sunken towards the direction away from the axis to form an abdicating opening for abdicating the edge of the bolt, so that the interference caused by the contact between the sleeving hole 11 and the edge can be avoided; the juncture between the abdicating face 13 and the abdicating face 13 is provided with a clamping strip 12, so that the edge of the bolt corresponds to the abdicating face 13, the side wall of the bolt corresponds to the clamping strip 12, the stress point is transferred to the side wall from the edge, and the contact interference between the sleeve joint hole 11 and the edge is avoided.

The clamping strips 12 protrude towards the axis position, the surfaces of the protrusions are arc surfaces, the clamping strips 12 incline towards the direction far away from the axis along the forward extending direction of the axis, the clamping strips 12 of the arc surfaces concentrate stress points on a line, the clamping effect is guaranteed, and meanwhile, the smooth contact surfaces prevent the clamping strips 12 from damaging the side wall of the bolt; the card strip 12 of slope is used for chucking bolt lateral wall, and it is big more to stretch into to cup joint hole 11 distance, and the distance between the card strip 12 is less, and then the card strip 12 pressure that same bolt received is big more, and this structure can guarantee to cup joint hole 11 fixed effect to the bolt.

The inclination angle of the clamping strip 12 and the axis is between 1 degree and 3 degrees, the inclined included angle helps the clamping strip 12 to clamp the bolt, if the included angle is too small, the fixing effect of the clamping strip 12 is not obvious, and the bolt is easy to slip and damage in actual operation; if the included angle is too large, the clamping strip 12 is fixed too tightly, the side wall of the bolt is easy to damage, and the effect is opposite.

The socket joint tool loosens and loosens the edge and the side wall when in use, the clamping is not tight, and the repeated sliding is the most common reason for damaging the edge and the side wall of the bolt when rotating, the structure ensures that the clamping strip 12 and the bolt are high in clamping strength and uniform in stress, so that the bolt and the bolt nut taking-out tool keep stable in position during actual operation, and the bolt edge and the side wall can not be loosened due to the twisting of the wrench tool, and the completeness of the bolt edge and the side wall is ensured.

In one embodiment, the receding surface 13 is an arc surface, the receding surface 13 with the shape is easy to machine and form, the manufacturing cost can be reduced, and in other embodiments, the receding surface 13 with different shapes can be used for achieving the purpose of receding the edge of the bolt. When the radian range of the yielding surface 13 is between pi/3 and pi, and the radian of the yielding surface 13 is larger than pi/3, a yielding space can be reserved for the edge of the bolt, so that the edge of the bolt cannot be contacted with the yielding surface 13; when the radian of the abdicating surface 13 is less than pi, the six abdicating surfaces 13 are prevented from being overlapped with each other.

The outer side wall surface of the tool connecting portion 2 is hexagonal and is suitable for being connected with a hexagonal wrench, and the hexagonal wrench is sleeved on the tool connecting portion 2 to drive the tool connecting portion 2 to rotate, so that the whole taking-out tool is driven to rotate. Alternatively, the tool coupling portion 2 may also be provided with a coupling aperture 21, which coupling aperture 21 is adapted to be coupled to a socket wrench, which can be rotated in the same manner as the extraction tool.

The sleeve joint part 1 and the tool connecting part 2 are of an integral structure and are connected through the extension part 3, the extension part 3 can increase the distance between the tool connecting part 2 and the sleeve joint part 1, the bolt end is completely lower than the connected surface, and the diameter of the concave hole is smaller than the plane where the bolt of the rotating tool is located. The operation surface is transferred to a space convenient for operation, which is beneficial to disassembly operation.

As shown in fig. 1, in an embodiment, the shape and the outer diameter of the extension portion 3 and the socket portion 1 are the same, the socket portion 1, the extension portion 3 and the tool connecting portion 2 are through along the axis of the bolt and nut removing tool, the through hole is a cylindrical hole, and the diameter of the cylindrical hole is smaller than the distance between the two pairs of side clamping strips 12. The shape and the outer diameter of the extension part 3 are the same as those of the sleeve joint part 1, so that a bolt and nut taking-out tool can conveniently stretch into a space where a bolt is located, and if the sleeve joint part 1 can stretch into the space, the shape can also ensure that the extension part 3 cannot be interfered and blocked by a narrow space.

On the other hand, the radius of the through hole is smaller than the minimum opening size of the socket hole 11, and this structure exposes the side of the nut to be socket-fitted in the through hole. The through hole allows a column to be inserted from the tool connection portion 2 and to pass through the extension portion 3 and to be inserted from the fitting hole 11 of the fitting portion 1, and allows a nut to be pushed out from the fitting hole 11 by the column if the nut to be pulled out is difficult to be pulled out from the front of the fitting hole 11.

As shown in fig. 6, in another embodiment, the extension 3 is a solid cylinder, and the radius of the bottom surface of the cylinder is smaller than that of the bottom surface of the socket 1; the structure of the socket joint part 1 is consistent with that of figure 1; the rear end of the extension part 3 is provided with a tool connecting part 2, and the outer side wall surface of the tool connecting part 2 is hexagonal prism-shaped and is suitable for being connected with a hexagonal wrench for use. When the length of the rotating tool is fixed, the thinner the tool connecting part 2 is, the longer the power arm is, the more labor is saved for rotating the tool, and the structure is used for screwing and disassembling a bolt which is more laborious; the extension 3 is longer than in the other embodiments and is used for tightening bolts with a deeper removal surface.

The utility model provides a bolt and nut takes out instrument use as follows, if the plane at bolt place is sunken not dark, then select the bolt and nut that has the through-hole to take out the instrument, if the plane at place is sunken darker, then select the bolt and nut of solid cylinder to take out the instrument, at first will cup joint hole 11 and aim at the bolt, card strip 12 aims at its lateral wall, the face of stepping down 13 aims at its edge, press to its place plane, until cup jointing 11 deepest plane in hole and offsetting with it, card strip 12 cup joints and has certain pressure rather than the lateral wall this moment, a determining gap has between face of stepping down 13 and the edge, the clearance is used for protecting the edge not damaged. Then select the square ratchet spanner or the hexagonal spanner rotation of being suitable for to dismantle, at the pivoted in-process, card strip 12 only contacts with the limit of bolt, and the contact surface is approximate to a line, compares in contact surface stress structure, and this structure effectively transmits the turning force to the bolt, guarantees simultaneously that the lateral wall of bolt can not be destroyed by the extrusion of mellow and smooth card strip 12.

The bolt and nut taking-out tool comprises a sleeve joint part 1, a tool connecting part 2 and an extending part 3, when a bolt is disassembled, a clamping strip 12 on the front surface of the sleeve joint part 1 is used for clamping the side wall of the bolt, a abdicating surface 13 is used for protecting the edge of the bolt, the extending part 3 is used for extending the plane where the bolt is located to the plane suitable for operation, the tool connecting part 2 is used for connecting a rotating tool, and the nut and the bolt which are worn, rusted and covered with a paint coating are effectively and completely taken out.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. The utility model provides a bolt and nut takes out instrument which characterized in that, including cup joint portion (1) and instrument connecting portion (2) of connecting around, the front portion of cup joint portion (1) is equipped with cup joints hole (11), cup joint six on hole (11) inside wall evenly distributed to cup joint bellied card strip (12) of axis in hole (11).

2. The tool as claimed in claim 1, wherein said clamping strip (12) is inclined away from said axis in a direction extending forwardly of said axis.

3. The tool for bolt and nut extraction according to claim 2, wherein the angle between the clamping strip (12) and the axis is between 1 ° and 3 °.

4. The tool for removing bolts and nuts according to claim 1, wherein the convex surface of the locking strip (12) is a circular arc surface.

5. The bolt and nut extracting tool according to claim 1, wherein the inner side wall between the adjacent clamping strips (12) in the sleeving hole (11) is a receding surface (13), and the receding surface (13) is recessed towards the direction away from the axis.

6. The bolt and nut extraction tool according to claim 5, wherein the relief surface (13) is a cambered surface.

7. The tool for extracting bolts and nuts according to claim 6, characterized in that the radian measure of said relief surface (13) is greater than pi/3 and less than pi.

8. The bolt and nut extraction tool according to claim 1, wherein the outer side wall surface of the tool attachment portion (2) is hexagonal prism-shaped.

9. The bolt and nut extraction tool according to claim 1, wherein the tool attachment portion (2) is provided with an attachment hole (21).

10. The tool for extracting bolts and nuts according to claim 1, characterized in that the socket (1) and the tool connection part (2) are connected by an extension (3).