CN220972260U - Fastening auxiliary tool, rotation stopping tool and mounting tool - Google Patents

Abstract

The utility model discloses a fastening auxiliary tool, a rotation stopping tool and an installation tool. Fastening auxiliary fixtures includes: the connecting seat is provided with a first connecting part and a second connecting part, and the first connecting part is used for connecting an automatic tightening tool; the reaction force assembly is connected with the second connecting part and comprises a support arm and a first stop lever, the support arm is connected with the connecting seat, and the first stop lever is connected to the side part of the support arm; in use, the automatic tightening tool is configured to be able to tighten or loosen a fastener, and the first stop lever is configured to abut against a piece to be installed to provide a counter force.

Description

Fastening auxiliary tool, rotation stopping tool and mounting tool

Technical Field

The utility model relates to the technical field of machining tools, in particular to a fastening auxiliary tool, a rotation stopping tool and an installation tool.

Background

In the related art, an upper control arm of a vehicle is typically connected to a knuckle by bolts. When the bolt is fastened, the required torque is more than 60N. To meet the torque requirements, torque arms are typically employed for tightening the bolts. However, the mounting space of the vehicle is narrow, resulting in limited use of the torsion arm. In addition, the screw and the nut are easy to follow rotation during the installation of the bolt, so that the fastening of the bolt is difficult.

Therefore, a new technical solution is needed to solve the above technical problems.

Disclosure of utility model

The utility model aims to provide a novel technical scheme of a fastening auxiliary tool, a rotation stopping tool and an installation tool.

According to a first aspect of the present utility model, a fastening aid is provided for tightening or loosening a fastener. This fastening auxiliary fixtures includes:

The connecting seat is provided with a first connecting part and a second connecting part, and the first connecting part is used for connecting an automatic tightening tool;

The reaction force assembly is connected with the second connecting part and comprises a support arm and a first stop lever, the support arm is connected with the connecting seat, and the first stop lever is connected to the side part of the support arm;

In use, the automatic tightening tool is configured to be able to tighten or loosen a fastener, and the first stop lever is configured to abut against a piece to be installed to provide a counter force.

Optionally, the included angle between the support arm and the axis of the automatic tightening tool is an acute angle.

Optionally, the support arm includes third connecting portion and supporting part, third connecting portion with the supporting part is connected, third connecting portion with the second connecting portion is connected, the supporting part with first pin is connected, the supporting part with the contained angle of the axis of automatic tightening tool is the acute angle.

Optionally, the first stop lever is located at a side of the support arm facing away from the connection seat.

Optionally, an axis of the first bar is parallel to an axis of the fastener.

Optionally, the first connecting portion is provided with first connecting hole, first connecting hole cup joint in automatic screwing up instrument, be provided with the recess on the outer wall of connecting seat, the second connecting portion is located in the recess, the support arm inlays and establishes in the recess.

Optionally, the connecting seat includes first connecting piece and second connecting piece, first connecting piece with second connecting piece detachably connects, first connecting piece is provided with first breach, the second connecting piece orientation first connecting piece's one end is provided with the second breach, first breach with the cooperation of second breach constitutes first connecting hole.

According to a second aspect of the present utility model there is provided a rotation stopping tool for forming a rotation stop for a portion of a fastener. The rotation stopping tool comprises:

A main body portion;

A mounting portion connected to the main body portion, the mounting portion for mounting a portion of a fastener; and

The stop part is connected with the main body part and comprises a second stop lever;

In use, the second bar is configured to form a stop for a part to be installed to prevent rotation of one part of the fastener with another part of the fastener during tightening or loosening of the fastener.

Optionally, the mounting portion comprises a sleeve having an aperture for receiving a portion of the fastener.

Optionally, the mounting portion further comprises a ratchet mechanism connected to the main body portion, and the sleeve is connected to the ratchet mechanism.

Optionally, the ratchet mechanism is detachably connected with the main body portion.

Optionally, the axis of the sleeve is parallel to the axis of the second bar.

Optionally, the stop portion includes two second bars, each of which is connected to the main body portion, and a gap is formed between the two second bars.

Optionally, the main body portion includes a first rod and a second rod, the first rod is connected with a middle portion of the second rod, two second stop rods are respectively disposed at two ends of the second rod, and the mounting portion is disposed on the first rod.

Optionally, the first bar forms a bending structure bending towards a side facing away from the second bar.

Optionally, the device further comprises a buffer piece, wherein the buffer piece is positioned in the gap, and the buffer piece is connected with the main body part.

According to a third aspect of the present utility model, an installation tool is provided. The installation tool comprises an automatic tightening tool, the fastening auxiliary tool and the rotation stopping tool, wherein the automatic tightening tool is connected to the first connecting portion.

According to the embodiment of the utility model, the fastening auxiliary tool can effectively assist in screwing or loosening a fastener such as a bolt on one hand; on the other hand, the operator can be prevented from bearing the torsion of the automatic tightening tool during the operation. In addition, this fastening auxiliary fixtures only includes connecting seat and reaction subassembly, therefore fastening auxiliary fixtures's simple structure need not big operation space can carry out the operation of fastening, loosening the fastener.

The rotation stopping tool can effectively prevent the bolt from following the rotation line in the screwing and loosening process, so that the fastening and loosening of the fastener are very easy. In addition, this rotation stopping frock only includes main part, installation department and backstop portion, simple structure, and the space that occupies when using is little.

The installation tool can rapidly realize the installation and the removal of the bolt of the piece to be installed. In addition, the installation tool has compact structure, small volume and light weight, and can be used for assembling and disassembling various pieces to be installed.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is an assembly view of a fastening aid and an automatic tightening tool according to an embodiment of the present application.

Fig. 2 is another angled view of fig. 1 in accordance with an embodiment of the present application.

Fig. 3 is a perspective view of a connection base according to an embodiment of the present application.

FIG. 4 is a perspective view of a mounting arm according to an embodiment of the application.

Fig. 5 is a perspective view of a rotation stopping tool according to an embodiment of the present application.

Fig. 6 is a top view of a rotation stopping tool according to an embodiment of the application.

Fig. 7 is a perspective view of a first lever according to an embodiment of the present application.

Fig. 8 is an assembly view of a rotation stopping tool and a knuckle, an upper control arm according to an embodiment of the application.

Fig. 9 is an assembly view of an installation tool with a knuckle, an upper control arm according to an embodiment of the application.

Reference numerals illustrate:

1. A connecting seat; 111. a first connection hole; 121. a groove; 13. a first connector; 131. a first notch; 14. a second connector; 141. a second notch;

2. a reaction force component; 21. a first stop lever; 22. a support arm; 221. a third connecting portion; 222. a support part;

3. An automatic tightening tool;

41. A first lever; 411. a first strut; 412. a second strut; 413. a through hole; 42. a second lever; 421. a mounting groove; 43. a mounting hole;

51. A sleeve; 511. hexagonal holes; 52. a ratchet mechanism; 53. a bump;

61. A second stop lever; 62. a gap; 63. a gasket.

8. A knuckle;

9. And an upper control arm.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

According to one embodiment of the present application, a fastening aid is provided for tightening or loosening a fastener. Referring to fig. 1 to 2, the fastening auxiliary tool includes:

A connecting seat 1, wherein the connecting seat 1 is provided with a first connecting part and a second connecting part, and the first connecting part is used for connecting an automatic tightening tool 3;

A reaction force assembly 2, wherein the reaction force assembly 2 is connected with the second connecting part, the reaction force assembly 2 comprises a support arm 22 and a first stop lever 21, the support arm 22 is connected with the connecting seat 1, and the first stop lever 21 is connected with the side part of the support arm 22;

In use, the automatic tightening tool 3 is configured to be able to tighten or loosen a fastener, and the first stop lever 21 is configured to abut against a piece to be installed to provide a counter force.

Specifically, the material of the connecting seat 1 is metal, ceramic, etc. The automatic tightening tool 3 is detachably mounted at the first connection portion. The connection means may be, but is not limited to, a snap fit, a clamp connection, a bolt connection, etc. The automatic tightening tool 3 may be, but is not limited to, an electric torque wrench. The reaction force component 2 is fixedly connected or detachably connected with the second connecting part. The arm 22 is connected to the second connection portion, for example, by riveting, clamping, bolting, welding, or the like. The support arm 22 is made of metal, ceramic, or the like. The arm 22 is rod-shaped, plate-shaped, etc. The first stop lever 21 is used to abut against the piece to be mounted. The first stop lever 21 is made of metal, ceramic, plastic, rubber, etc. The first bar 21 has a cylindrical, prismatic, rectangular or other shape. The first stop lever 21 is connected to the arm 22 by bolting, clamping, riveting, welding or the like. The side of the arm 22 refers to the side surface of the arm 22 perpendicular to the axial direction. The parts to be mounted are, for example, a knuckle 8 and an upper control arm 9. The two are fastened together by bolts.

Referring to fig. 9, in the fastening auxiliary tool of the present application, first, the automatic tightening tool 3 is mounted on the first connecting portion in use. The automatic tightening tool 3 is then coupled to the bolt in the set position and the first stop lever 21 abuts against the piece to be mounted, for example the knuckle 8 or the control arm. Next, the automatic tightening tool 3 is started. The automatic tightening tool 3 screws the bolt. During the screwing process, the first stop lever 21 is in abutment with the piece to be mounted, so as to provide a counter-force to counteract the torque of the automatic tightening tool 3 during the screwing process. In this way, on the one hand, the fastening aid is able to effectively assist in screwing or loosening the fastener, such as a bolt; on the other hand, the operator can be prevented from receiving the torsion force of the automatic tightening tool 3 during the operation.

In addition, this fastening auxiliary fixtures only includes connecting seat 1 and reaction subassembly 2, therefore fastening auxiliary fixtures's simple structure, does not need the operation of big operation space can fasten, loose fastener.

Of course, the pieces to be mounted are not limited to the knuckle 8 and the upper control arm 9. Those skilled in the art can make the settings according to actual needs.

In one example, the arm 22 is at an acute angle to the axis of the automatic tightening tool 3.

Referring to fig. 1, the automatic tightening tool 3 is a rod set, and the axis of the automatic tightening tool 3 is a line parallel to the axial direction thereof, as indicated by a line C in fig. 1. In this example, the arm 22 is arranged obliquely with respect to the automatic tightening tool 3. The included angle between the two is an acute angle. In this way, during the operation of the automatic tightening tool 3, the arm 22 can form a strong support for the automatic tightening tool 3 through the connecting seat 1, so that a reaction force can be more effectively provided, and the automatic tightening tool 3 is prevented from swinging.

In addition, the acute angle makes the whole compact structure of fastening auxiliary fixtures and automatic tightening tool 3, and the space that occupies is little.

For example, the angle between the arm 22 and the axis of the automatic tightening tool 3 is 10 ° to 45 °. In this range, the arm 22 can more effectively support the automatic tightening tool 3, and the overall structure of the tightening aid and the automatic tightening tool 3 is more compact.

In one example, the support arm 22 includes a third connecting portion 221 and a supporting portion 222, where the third connecting portion 221 is connected to the supporting portion 222, the third connecting portion 221 is connected to the second connecting portion, the supporting portion 222 is connected to the first stop lever 21, and an included angle between the supporting portion 222 and an axis of the automatic tightening tool 3 is an acute angle.

Referring to fig. 1 and 4, the arm 22 is a metal plate. The metal sheet is formed into the arms 22 in a strip-like configuration by cutting. The third connection part 221 is integrally formed with the support part 222, which makes the connection strength of the two high, and omits a process of connecting the two. Of course, the arm 22 may be prepared by molding the third connecting portion 221 and the supporting portion 222 separately and then connecting them. The first bar 21 is cylindrical. A hole is provided at one end of the support 222. One end of the first bar 21 is fixed to the hole by means of bolting. The third connection part 221 is provided with a screw hole, and the third connection part 221 is fixed to the second connection part using a bolt. Of course, the connection mode is not limited to the bolt connection, and one skilled in the art can set according to actual needs. The third connecting portion 221 is parallel to the axis of the automatic tightening tool 3. This arrangement facilitates alignment and mounting of the arm 22 with the attachment socket 1. The supporting portion 222 forms an acute angle with the third connecting portion 221, so that the supporting portion 222 forms an acute angle with the axis of the automatic tightening tool 3.

For example, the support portion 222 protrudes from one end in the axial direction of the automatic tightening tool 3. In this way, the length of the arm 22 can be effectively increased, thereby enabling the fastening aid to more effectively provide a counter force.

In one example, the first blocking lever 21 is located on the side of the arm 22 facing away from the connection socket 1.

Referring to fig. 2, the first bar 21 is disposed away from the connection seat 1, thereby avoiding interference of the first bar 21 with the working end of the automatic tightening tool 3.

Furthermore, the first stop lever 21 is located at this side, which is more convenient to observe whether the first stop lever 21 abuts against the member to be mounted in use.

In one example, the axis of the first stop bar 21 is parallel to the axis of the fastener.

Referring to fig. 1 and 2, the axis of the first bar 21 is parallel to the axial direction of the first bar 21, as indicated by line B in fig. 1. The axis of the fastener is parallel to the axial direction of the fastener, as indicated by line a in fig. 1.

In this example, the torque force generated by the automatic tightening tool 3 when tightening or loosening the fastener is opposite to the reaction force generated by the first stop lever 21 and is equal in magnitude. Since the axis of the first stop lever 21 is parallel to the axis of the fastener, the deflection of the arm 22 caused by the biasing force of the member to be mounted on the first stop lever 21 can be effectively avoided. This makes the fastening auxiliary fixtures more stable.

Of course, the axis of the first stop lever 21 may be non-parallel to the axis of the fastener, as long as it can be against the piece to be mounted to provide a counter force.

In one example, the first connecting portion is provided with a first connecting hole 111, the first connecting hole 111 is sleeved on the automatic tightening tool 3, a groove 121 is provided on the outer wall of the connecting seat 1, the second connecting portion is located in the groove 121, and the support arm 22 is embedded in the groove 121.

Referring to fig. 1 and 3, a first connection hole 111 is formed in the middle of the connection base 1. The automatic tightening tool 3 is inserted through the first connection hole 111 and is fixed in the first connection hole 111. The connecting mode has high connecting strength, and the automatic tightening tool 3 and the connecting seat 1 are not easy to slip. The outer wall of the connecting seat 1 is provided with a groove 121. The arm 22 is embedded in the recess 121 and forms a fixed connection with the second connection part, for example, the third connection part 221 of the arm 22 is fixed to the second connection part by a bolt. In this instance, the side wall of the groove 121 can form a limit to the side of the third connection part 221, and the side wall of the groove 121 can abut against the side of the third connection part 221. When the fastener is screwed or loosened, the supporting action can effectively reduce the acting force of the support arm 22 on the bolt, and the joint of the support arm 22 and the connecting seat 1 is prevented from loosening.

Of course, in other examples, the arm 22 may be directly fixed to the outer wall of the connection seat 1 without the groove 121. The arm 22 may also be connected to other positions of the connection base 1, such as a top wall, a bottom wall, and an inner wall, and may be set by those skilled in the art according to actual needs.

In one example, the connection base 1 includes a first connection member 13 and a second connection member 14, where the first connection member 13 is detachably connected to the second connection member 14, the first connection member 13 is provided with a first notch 131, one end of the second connection member 14 facing the first connection member 13 is provided with a second notch 141, and the first notch 131 and the second notch 141 cooperate to form the first connection hole 111.

Referring to fig. 1 and 3, the entire connecting base 1 is rectangular parallelepiped. The first connecting piece 13 and the second connecting piece 14 are both rectangular solids. The middle of one side of the first connector 13 forms a first notch 131. A second notch 141 is formed in the middle of one side of the second connection member 14. The cross-sections of the first notch 131 and the second notch 141 are both semicircular. The first notch 131 and the second notch 141 are disposed opposite to each other to enclose the first connection hole 111 having a circular shape. The first connecting piece 13 and the second connecting piece 14 are connected by means of bolt connection, clamping connection and the like.

In use, first, the first connector 13 and the second connector 14 are separated; then, the automatic tightening tool 3 is placed into the first notch 131 or the second notch 141; next, the first and second connection members 13 and 14 are fastened together and form a fixed connection to fix the automatic tightening tool 3 in the first mounting hole 43.

In this example, the split-type connection base 1 facilitates the installation and removal of the automatic tightening tool 3.

Of course, the structure of the connection base 1 is not limited to the above embodiment, and a person skilled in the art may set it according to actual needs.

According to another embodiment of the present application, a rotation stopping tool is provided for forming a rotation stop for a portion of a fastener. The fastener is, for example, a bolt. A portion of the fastener is, for example, a screw or nut. During the screwing or loosening process of the bolt, if torsion is only applied to either the nut or the screw, the other of the nut or the screw can also rotate along with the screw under the action of friction force between the nut and the screw, so that the whole bolt idles, and screwing or loosening cannot be performed. The rotation stopping tool can effectively fix the bolt or the nut so as to prevent the screw rod or the nut from rotating along with the rotation in the screwing or loosening process.

Referring to fig. 5 to 8, the rotation stopping tool includes:

A main body portion;

A mounting portion connected to the main body portion, the mounting portion for mounting a portion of a fastener; and

A stopper portion connected with the main body portion, the stopper portion including a second bar 61;

In use, the second stop bar 61 is configured to form a stop for a part to be installed to prevent rotation of one part of the fastener with another part of the fastener during tightening or loosening of the fastener.

Specifically, the material of the main body is metal, ceramic, or the like. The main body portion is used for connecting the mounting portion and the stopper portion, and is connected by means of, for example, bolting, clamping, riveting, welding, integral molding, or the like. The mounting portion is used for positioning the head or nut of the screw. For example, the mounting portion has a hole, such as a hex hole 511 or a dodecagonal hole, to receive and limit the head or nut of the screw. Of course, the holes are not limited to the hexagonal holes 511, the dodecagonal holes, the tetragonal holes, the twenty-four angular holes, etc., and may be selected by those skilled in the art according to the head of the screw or the structure of the nut.

The stop is used for abutting against the to-be-installed piece to form a rotation stopping force on a part of the fastener so as to prevent the screw or the nut from rotating along with the rotation. The second stop lever 61 is made of metal, ceramic, plastic, or the like. The second bar 61 is a cylinder, a prism, a rectangular parallelepiped, or the like. One end of the second lever is connected with the main body part, for example, by adopting a mode of bolt connection, clamping connection, riveting, welding, integral forming and the like.

In use, referring to fig. 8 and 9, first, the rotation stopping tool is mounted to the member to be mounted, wherein the second lever abuts against the member to be mounted, such as the knuckle 8, and the mounting portion forms a positioning fit with the head of the screw. Then, the nut is screwed by the automatic tightening tool 3. Due to the stopping effect formed by the second stop lever 61 and the to-be-mounted piece, the screw rod can be effectively prevented from rotating along with the nut in the nut rotating process, so that the bolt can be smoothly screwed or loosened. Of course, the mounting portion and the head portion of the screw may form a limit fit, and the operator may rotate the screw. The rotation stopping tool can effectively prevent the bolt from following the rotation line in the screwing and loosening process, so that the fastening and loosening of the fastener are very easy.

In addition, this rotation stopping frock only includes main part, installation department and backstop portion, simple structure, and the space that occupies when using is little.

In one example, the mounting portion includes a sleeve 51, the sleeve 51 having an aperture for receiving a portion of a fastener.

Referring to fig. 5 and 6, the sleeve 51 is detachably connected to the main body. The operator can select the sleeve 51 of an appropriate shape and size according to actual needs. Such as holes, namely the four-corner holes, six-corner holes 511, eight-corner holes, twelve-corner holes, twenty-four-corner holes, etc., described above. The sleeve 51 is a standard so that it can effectively fit the bolt.

Preferably, the sleeve 51 is a material having a magnetic attraction function. The sleeve 51 is capable of generating a magnetic attraction force which makes it easier for the head or nut of the screw to enter into the bore.

Of course, in other examples, the mounting portion may not employ the sleeve 51. For example, in the case where the head of the screw is a groove, such as a straight groove, a cross groove, a triangular groove, a rice-shaped groove, or the like, the mounting portion is a correspondingly shaped screwdriver.

In one example, the mounting portion further includes a ratchet mechanism 52, the ratchet mechanism 52 is connected to the main body portion, and the sleeve 51 is connected to the ratchet mechanism 52.

Referring to fig. 5, 6, 8, and 9, the ratchet mechanism 52 includes a ratchet and a pawl. The ratchet and pawl cooperate to achieve a one-way drive, while the ratchet and pawl freewheel in reverse. The body portion is provided with a mounting hole 43, and the ratchet mechanism 52 has a projection 53, and the projection 53 is fitted into the mounting hole 43. The bump 53 has a through hole 413. The main body portion is provided with a bolt hole. The bolt hole communicates with the through hole 413, and the boss 53 is fixed in the mounting hole 43 by a bolt, so that the ratchet mechanism 52 is fixedly connected to the main body. Of course, the connection manner of the ratchet mechanism 52 and the main body is not limited to the above embodiment, and those skilled in the art can set the connection manner according to actual needs.

In this example, the sleeve 51 is provided on the ratchet mechanism 52 such that the sleeve 51 is capable of unidirectional rotation relative to the body portion. In a positive fit with the head or nut of the screw, if the angle of the bore of the sleeve 51, for example the hexagonal bore 511, does not correspond to the angle of the head or nut of the screw, this may result in the head or nut of the screw not being able to enter the hexagonal bore 511. Due to the ratchet mechanism 52, the sleeve 51 can rotate in one direction, so that the angle of the head or the nut of the screw can be adapted, and the head or the nut of the screw can smoothly enter the hexagonal hole 511. The ratchet mechanism 52 effectively improves the efficiency of the installation of the anti-rotation tool on the part to be installed.

The ratchet mechanism 52 can realize a one-way transmission, so that the reaction force of the stopper can be transmitted to the head or the nut of the screw to prevent the screw or the nut from rotating.

In one example, the ratchet mechanism 52 is removably coupled to the body portion.

Referring to fig. 7 and 8, as described above, the body portion is provided with the mounting hole 43, the ratchet mechanism 52 has the projection 53, the projection 53 is fitted into the mounting hole 43, and the projection 53 is fixed in the mounting hole 43 by the bolt. When the ratchet mechanism 52 needs to be replaced, the bolt may be removed from the bolt hole. The removable connection facilitates replacement of the ratchet mechanism 52.

Of course, the detachable connection is not limited to the above-described embodiment. Those skilled in the art can make the settings according to actual needs.

In one example, the axis of the sleeve 51 is parallel to the axis of the second stop lever 61.

Referring to fig. 5 and 6, the axis of the sleeve 51 is parallel to the axial direction of the sleeve 51. The axis of the second lever is parallel to the axial direction of the second lever. When the head of the screw or the nut rotates, it rotates around the axis of the sleeve 51, and the axis of the second bar 61 is parallel to the axis of the sleeve 51, so that the second bar 61 can more effectively generate torque to avoid the rotation of the sleeve 51, thereby restricting the rotation of the screw or the nut.

In addition, the sleeve 51 is prevented from falling off the bolt due to the biasing force of the rotation stopping tool.

In one example, the stop portion includes two second stop bars 61, where each second stop bar 61 is connected to the main body portion, and a gap 62 is formed between the two second stop bars 61.

Referring to fig. 5 and 6, two second bars 61 are disposed in parallel. The two second bars 61 are located on the same side of the body portion. The end portions of the two second bars 61 are fixedly connected to the main body portion, respectively. For example, the connection is performed by means of bolting, caulking, clamping, or the like. To facilitate the mounting of the second bar 61 on the piece to be mounted, the end of the second bar 61 facing away from the main body is chamfered. The gap 62 between the two second bars 61 is used to accommodate a piece to be mounted, such as a knuckle 8, which is stuck in the gap 62. One of the two second bars 61 can abut against the member to be mounted no matter in which direction the rotation stopping tool is rotated about the axis of the sleeve 51, thereby functioning as a rotation stopping.

Of course, the number of the second bars 61 is not limited to the above-described embodiment, and one skilled in the art may set according to the structure of the member to be mounted.

In one example, the anti-rotation tool further includes a buffer located in the gap 62, the buffer being connected to the main body.

Referring to fig. 5 and 6, the buffer is rubber, silicone, plastic, or the like. The buffer piece can play a buffering role, and damage to the to-be-installed piece caused by direct contact of the main body part and the to-be-installed piece is avoided. For example, the cushioning member is a spacer 63. The spacer 63 is fixed to the main body portion by bolts. The shape of the spacer 63 is, for example, a rectangular parallelepiped, a cylinder, an elliptic cylinder, etc., and those skilled in the art can select according to actual needs.

In one example, the main body portion includes a first lever 41 and a second lever 42, the first lever 41 is connected to a middle portion of the second lever 42, two second bars 61 are respectively provided at both ends of the second lever 42, and the mounting portion is provided on the first lever 41.

Referring to fig. 5, 6 and 7, the first and second rods 41 and 42 are made of metal, ceramic, plastic, or the like. A second blocking lever 61 is provided at each axial end of the second lever 42. Two second bars 61 are installed at the sides of the second bar 42 and perpendicular to the second bar 42. The second bar 61 is fixed to both ends of the second bar 42 by bolts, for example. One end of the first rod 41 is fixed to a middle portion of the second rod 42, for example, by bolting. The other end of the first lever 41 is provided with the aforementioned mounting hole 43, bolt hole, etc. to facilitate the mounting of the ratchet mechanism 52. The main body part has the advantages of simple structure, light weight and small occupied space, and is favorable for the rotation stopping tool to be mounted on the piece to be mounted.

Preferably, a mounting groove 421 is provided in the middle of the second lever 42. The first rod 41 is embedded in the mounting groove 421 and fixed in the mounting groove 421 by a bolt. The mounting groove 421 can position the first rod 41 and can form a supporting force for the first rod 41 to prevent the torsion force from directly acting on the bolt for connecting the first rod 41 and the second rod 42 when the rotation stopping tool is subjected to the torsion force, thereby improving the connection strength of the first rod 41 and the second rod 42.

Of course, the structure of the main body portion is not limited to the above-described embodiment, and a person skilled in the art may set it according to actual needs.

In one example, the first rod 41 is formed in a bent structure bent toward a side facing away from the second rod 42.

Referring to fig. 5 and 7, the first rod 41 is bent to form an L-shaped structure. The first bar 41 includes a first bar 411 and a second bar 412 connected together. The first strut 411 is provided with the aforementioned mounting holes 43, bolt holes, etc. to facilitate connection with the ratchet mechanism 52. The second supporting rod 412 is embedded in the mounting groove 421 and fixedly connected with the middle part of the second rod 42. The bending structure fully utilizes the space, so that the whole structure of the rotation stopping tool is more compact, and the rotation stopping tool is convenient to install on a piece to be installed. In addition, the bending structure of the first rod 41 can be adapted to different pieces to be mounted so as to form a good rotation stopping effect.

Of course, the structure of the first lever 41 is not limited to the above-described embodiment, and a person skilled in the art may set it according to actual needs.

According to yet another embodiment of the present application, an installation tool is provided. The mounting tool comprises an automatic tightening tool 3, the fastening auxiliary tool provided by the embodiment of the application and the rotation stopping tool provided by the embodiment of the application, wherein the automatic tightening tool 3 is connected with the first connecting part.

Referring to fig. 8 and 9, the upper control arm 9 and the knuckle 8 are described as an example of the member to be mounted. In use, the rotation stopping tool is first mounted to one side of the bolt. For example, the hexagonal hole 511 of the anti-rotation tool is sleeved outside the nut at one end of the bolt. The two second stop rods 61 are clamped on two sides of the steering knuckle 8, so that the rotation stopping tool can effectively prevent the nut from rotating along with the rotation.

The working end of the automatic tightening tool 3 is then mounted on the head of the screw while the first bar 21 is in abutment against the knuckle 8 to provide a counter force.

Next, the automatic tightening tool 3 is activated to screw or loosen the screw.

In this example, the swing of the automatic tightening tool 3 due to the excessive torque can be effectively prevented from occurring when the automatic tightening tool is operated due to the fastening auxiliary tool. Due to the effect of the rotation stopping tool, the nut can be effectively prevented from rotating along with the rotation of the screw rod, and the phenomenon of idle rotation of the bolt is avoided.

The installation tool can rapidly realize the installation and the removal of the bolt of the piece to be installed.

In addition, the installation tool has compact structure, small volume and light weight, and can be used for assembling and disassembling various pieces to be installed.

The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (10)

1. A fastening aid for tightening or loosening fasteners, comprising:

The connecting seat (1), the connecting seat (1) is provided with a first connecting part and a second connecting part, and the first connecting part is used for connecting an automatic tightening tool;

The reaction force assembly (2), the reaction force assembly (2) is connected with the second connecting part, the reaction force assembly (2) comprises a support arm (22) and a first stop lever (21), the support arm (22) is connected with the connecting seat (1), and the first stop lever (21) is connected to the side part of the support arm (22);

In use, the automatic tightening tool is configured to be able to tighten or loosen a fastener, and the first stop lever (21) is configured to abut against a piece to be mounted to provide a counter force.

2. Fastening aid according to claim 1, characterized in that the angle between the arm (22) and the axis of the automatic tightening tool is acute.

3. The fastening auxiliary tool according to claim 2, wherein the support arm (22) comprises a third connecting portion (221) and a supporting portion (222), the third connecting portion (221) is connected with the second connecting portion, the supporting portion (222) is connected with the first stop lever (21), and an included angle between the supporting portion (222) and an axis of the automatic tightening tool is an acute angle.

4. A fastening aid according to any one of claims 1-3, characterized in that the first connection part is provided with a first connection hole (111), the first connection hole (111) is sleeved on the automatic tightening tool, a groove is provided on the outer wall of the connection base (1), the second connection part is located in the groove, and the support arm (22) is embedded in the groove.

5. The fastening auxiliary tool according to claim 4, wherein the connection base (1) comprises a first connection piece (13) and a second connection piece (14), the first connection piece (13) is detachably connected with the second connection piece (14), the first connection piece (13) is provided with a first notch (131), one end of the second connection piece (14) facing the first connection piece (13) is provided with a second notch (141), and the first notch (131) and the second notch (141) are matched to form the first connection hole (111).

6. A rotation stopping tool for forming a rotation stop for a portion of a fastener, comprising:

A main body portion;

A mounting portion connected to the main body portion, the mounting portion for mounting a portion of a fastener; and

A stop portion connected with the main body portion, the stop portion including a second bar (61);

In use, the second stop bar (61) is configured to form a stop for a part to be installed to prevent rotation of one part of a fastener with another part of the fastener during tightening or loosening of the fastener.

7. The anti-rotation tool according to claim 6, wherein the mounting portion comprises a sleeve (51), the sleeve (51) having a bore for receiving a portion of a fastener.

8. The anti-rotation tool according to claim 7, wherein the mounting portion further comprises a ratchet mechanism (52), the ratchet mechanism (52) being connected to the main body portion, the sleeve (51) being connected to the ratchet mechanism (52).

9. The rotation stopping tool according to claim 6, wherein the stop portion comprises two second stop rods (61), the two second stop rods (61) are connected with the main body portion, a gap (62) is formed between the two second stop rods (61), the main body portion comprises a first rod (41) and a second rod (42), the first rod (41) is connected with the middle portion of the second rod (42), the two second stop rods (61) are respectively arranged at two ends of the second rod (42), and the mounting portion is arranged on the first rod (41).

10. An installation tool comprising an automatic tightening tool, a fastening aid according to any one of claims 1 to 5 and a rotation stopping tool according to any one of claims 6 to 9, the automatic tightening tool being connected to the first connection.