CN111941334A

CN111941334A - Ratchet wrench with self-adaptive diameter

Info

Publication number: CN111941334A
Application number: CN202010692179.7A
Authority: CN
Inventors: 曹祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2020-11-17

Abstract

The invention relates to the technical field of sheet metal tools and discloses a diameter-adaptive ratchet wrench which comprises an outer collar, wherein a ratchet is arranged in the outer collar, the middle of each edge of the ratchet is movably connected with a telescopic clamping plate, the outer side of each telescopic clamping plate is fixedly connected with a wedge block, and the side surface of each wedge block is provided with an accommodating groove. This diameter self-adaptation's ratchet spanner, when using, on the one hand, the diameter self-adaptation of cooperation nut, can directly be used for the elasticity of the bolt of multiple size standard, because direct cover is on the nut, need not to form a complete set and use the lantern ring of multiple size, whole size thickness is thinner relatively simultaneously, it is more convenient to be applied to narrow space, on the other hand, the tooth's socket will not remain the engaged state all the time, will not remain the detached state all the time, the noise is less during relative rotation, the even dispersion of torque is to six groups of drive columns, the tooth's socket atress on every drive column is less relatively, holistic bearing capacity improves.

Description

Ratchet wrench with self-adaptive diameter

Technical Field

The invention relates to the technical field of sheet metal tools, in particular to a ratchet wrench with a self-adaptive diameter.

Background

The chaste tree spanner can two-way rotation, does not need the action of repeated emboliaing when using, can free angle of adjustment, when the screw position is more narrow or the screw is not good to be contacted, uses chaste tree spanner can be more laborsaving, convenient, as shown in the figure, for common two-way chaste tree spanner structure, the spanner head is equipped with chaste tree, pawl, spring and pouring weight, but chaste tree free unidirectional rotation is used for the elasticity bolt with angle of adjustment, another direction.

The chaste tree spanner is when the nut of the different diameters of elasticity, and the lantern ring of different diameters is connected through the mode of cartridge square tenon usually, and on the one hand, a chaste tree spanner need be equipped with the lantern ring of a whole set of different diameters, increases use cost, has reduced the convenience simultaneously, and on the other hand has increased the use thickness of spanner, has reduced and has used the advantage in narrow space.

When the chaste wheel wrench is used, the pawl is tightly attached to the chaste wheel through the spring, so that the ratchet wrench can generate a tooth-beating phenomenon when adjusting the angle, and generate a 'Da … …' noise, and secondly, when the ratchet wrench is used for loosening or tightening a nut, stress is concentrated between the pawl and the chaste wheel, so that the maximum torque borne by the chaste wheel wrench is limited, and application scenes and service life are limited.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a technical scheme of a ratchet wrench with a self-adaptive diameter, which has the advantages of self-adaptive aperture, long service life and the like and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a diameter self-adaptation's ratchet spanner, includes the outer collar, be equipped with the ratchet in the outer collar, the equal swing joint in middle part on every limit of ratchet has the flexible cardboard of telescopic, flexible cardboard outside fixedly connected with wedge, the side of wedge is equipped with the holding tank, the holding tank has the drive post through spout swing joint, the outer collar can promote the drive post to remove when rotatory for the ratchet, the inboard of holding tank articulates there is the contact plate, and the articulated shaft is parallel with the terminal surface of ratchet, be equipped with the spring between flexible cardboard and the contact plate.

Preferably, the driving column is engaged with the wedge block when the driving column and the wedge block are attached tightly, the driving column is engaged with the inner wall of the outer sleeve ring, and the driving column can slide along the sliding groove.

Preferably, the holding tank is equipped with two sets ofly, and two sets of holding tanks are located the both sides of wedge respectively, and two sets of holding tanks are located the upper and lower two parts of ratchet respectively, the tooth's socket of outer lantern ring is optional meshes with one of them group of holding tank or the drive post in two sets of holding tanks simultaneously respectively.

Preferably, the tooth grooves on the outer collar are convex tooth grooves and are positioned in the middle of the outer collar, and the side surfaces of the outer collar and the ratchet wheel can slide relatively.

Preferably, the spring sleeve is provided with a guide post, the head of the guide post is a ball body made of a magnet, and the spring and the guide post can be completely embedded into the telescopic clamping plate.

The invention has the following beneficial effects:

1. this diameter self-adaptation's ratchet spanner, when using, the diameter self-adaptation of cooperation nut can directly be used for the elasticity of the bolt of multiple size standard, because directly overlap on the nut, on the one hand, need not to form a complete set and use the lantern ring of multiple size, and convenient to use reduces the overall cost, and on the other hand, whole size thickness is relatively thinner, and it is more convenient to be applied to narrow space, enlargies ratchet spanner's advantage.

2. This diameter self-adaptation ratchet spanner, on the one hand, the tooth's socket need not remain the engaged state all the time, need not remain the disengagement state all the time, and the noise is less during relative rotation, and on the other hand, the even dispersion of torque is to six groups of drive posts, and the tooth's socket atress on every drive post is less relatively, and holistic bearing capacity improves, has expanded the use scene and has improved life.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a schematic structural view of an outer collar of the present invention;

FIG. 4 is a partial schematic view of the present invention;

fig. 5 is a schematic structural view of a conventional ratchet wrench.

In the figure: 1. an outer collar; 2. a ratchet wheel; 3. a retractable card board; 4. a wedge block; 5. accommodating grooves; 6. a chute; 7. a drive column; 8. a spring; 9. a contact plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a diameter adaptive ratchet wrench comprises an outer collar 1, a ratchet 2 is arranged in the outer collar 1, the end surface of the ratchet 2 is movably connected with the end surface of the outer collar 1, the inner hole of the ratchet 2 is regular hexagon, a telescopic clamping plate 3 is movably connected with the middle part of each side of the ratchet 2, the telescopic clamping plate 3 penetrates through the ratchet 2, six groups of telescopic clamping plates 3 extend out of the side surface of a nut to be close to lock the nut to avoid slipping, a wedge block 4 is fixedly connected with the outer side of the telescopic clamping plate 3, a holding tank 5 is arranged on the side surface of the wedge block 4, the holding tank 5 is movably connected with a driving column 7 through a sliding chute 6, the outer collar 1 pushes the driving column 7 to move when rotating relative to the ratchet 2, the driving column 7 moves to extrude the wedge block 4 to extend the telescopic clamping plate 3, a return spring is arranged between the telescopic clamping plate 3 and the ratchet 2 to keep, the inboard of holding tank 5 articulates there is contact plate 9, and the articulated shaft is parallel with ratchet 2's terminal surface, is equipped with spring 8 between flexible cardboard 3 and the contact plate 9, and contact plate 9 is open gesture, and the articulated shaft of contact plate 9 encloses into a diameter major possession hexagon, and the free end encloses into a little hexagon, can paste tightly by the nut, provides initial power, hinders ratchet 2 along with the motion of outer lantern ring 1, makes outer lantern ring 1 and ratchet 2 relative rotation.

Referring to fig. 2, the driving post 7 is engaged with the wedge 4 when the driving post is tightly attached, the driving post 7 is engaged with the inner wall of the outer collar 1, the engagement can play a role of locking, so that excessive torque and slipping looseness during nut tightening can be avoided, the driving post 7 can slide along the sliding groove 6, the driving post 7 is tightly attached to the wedge 4 when sliding towards the wedge 4, the driving post 7 can freely rotate when being far away from the wedge 4, and then the outer collar 1 can freely rotate to adjust the handle angle.

Wherein, holding tank 5 is equipped with two sets ofly, and two sets of holding tanks 5 are located the both sides of wedge 4 respectively, and two sets of holding tanks 5 are located ratchet 2's upper and lower two parts respectively, and the tooth's socket of outer collar 1 is optional respectively with one of them group of holding tank 5 or simultaneously with the drive post 7 meshing in two sets of holding tanks 5, then selects the direction of outer collar 1 free rotation, according to rotatory needs, two-way optional.

Referring to fig. 3, the tooth socket on the outer collar 1 is a convex tooth socket and is located in the middle of the outer collar 1, the outer collar 1 and the ratchet 2 can slide relatively, the outer collar 1 has 3 working positions of the retractable catch plate, and the retractable catch plate engages with the upper driving post 7, engages with the lower driving post 7, and engages with the two sets of driving posts 7 simultaneously, when the angle is large enough, the two directions can be locked without adjusting the angle.

Referring to fig. 4, the spring 8 is sleeved with a guiding post, the head of the guiding post is a ball made of a magnet, the guiding post can slide along the contact plate 9, the contact plate 9 can be washed to prevent the contact plate 9 from falling off, the spring 8 and the guiding post can be completely embedded into the retractable snap-gauge 3 and completely retracted, so that the contact plate 9 is tightly attached to the nut surface.

The working principle and the working process of the invention are as follows:

when the nut is loosened and tightened, one side of a rotating shaft of a contact plate 9 faces downwards, the contact plate is sleeved on the nut and sleeved, the upper end of the contact plate 9 is tightly attached to the side face of the nut under the elastic force action of a spring 8 to provide initial acting force to limit the rotation of the ratchet 2, the outer collar 1 is rotated through a handle, the ratchet 2 and the outer collar 1 rotate relatively, when the outer collar 1 rotates, a driving column 7 is driven to move and rotate to enable the driving column 7 to be meshed with a wedge-shaped block 4, the wedge-shaped block 4 is driven to press down by the acting force between the driving column 7 and the wedge-shaped block 4, after the telescopic clamping plate 3 extends out to be tightly attached to the side face of the nut, the driving column 7 is completely clamped to further clamp the outer collar 1, the outer collar 1 and the ratchet 2 rotate synchronously to drive the nut, when the angle needs to be adjusted, the outer collar 1 rotates reversely, the driving column 7 is separated from the wedge-, and finishing the adjustment of the handle angle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A diameter adaptive ratchet spanner, includes outer collar (1), its characterized in that: be equipped with ratchet (2) in outer lantern ring (1), the equal swing joint in middle part on each limit of ratchet (2) has telescopic flexible cardboard (3), flexible cardboard (3) outside fixedly connected with wedge (4), the side of wedge (4) is equipped with holding tank (5), holding tank (5) have drive post (7) through spout (6) swing joint, outer lantern ring (1) can promote drive post (7) when rotatory for ratchet (2) and remove, the inboard of holding tank (5) articulates there is contact plate (9), and the articulated shaft is parallel with the terminal surface of ratchet (2), be equipped with spring (8) between flexible cardboard (3) and contact plate (9).

2. A diameter adaptive ratchet wrench as claimed in claim 1, in which: the driving column (7) is meshed with the wedge block (4) when attached tightly, the driving column (7) is meshed with the inner wall of the outer sleeve ring (1), and the driving column (7) can slide along the sliding groove (6).

3. A diameter adaptive ratchet wrench as claimed in claim 2, in which: the holding tank (5) are provided with two sets, two sets of holding tanks (5) are respectively located on two sides of the wedge-shaped block (4), the two sets of holding tanks (5) are respectively located on the upper portion and the lower portion of the ratchet wheel (2), and the tooth grooves of the outer collar (1) can be selectively meshed with one set of holding tanks (5) or the driving columns (7) in the two sets of holding tanks (5) simultaneously.

4. A diameter adaptive ratchet wrench as claimed in claim 3, in which: the tooth grooves on the outer sleeve (1) are convex tooth grooves and are positioned in the middle of the outer sleeve (1), and the side surfaces of the outer sleeve (1) and the ratchet wheel (2) can slide relatively.

5. A diameter adaptive ratchet wrench as claimed in claim 1, in which: the spring (8) is sleeved with a guide post, the head of the guide post is a ball body made of a magnet, and the spring (8) and the guide post can be completely embedded into the telescopic clamping plate (3).