CN211306151U - Socket spanner - Google Patents

Abstract

The utility model belongs to the technical field of the car, a box spanner is disclosed, including connecting rod, initiative cover, driven cover and dowel steel. The connecting rod is integrally L-shaped and comprises a driving part and a driven part which is vertical to the driving part; the driving part is actively sleeved on the connecting rod and can rotate by taking the driving part as an axis; the driven part is sleeved on the connecting rod and can rotate by taking the driven part as an axis, and one end of the driven sleeve, which is far away from the connecting rod, is also provided with a sleeve which can be used for installing or disassembling a bolt; the dowel bars are integrally L-shaped, a plurality of dowel bars are uniformly distributed around the connecting rod, and two ends of the dowel bars are respectively inserted into the driving sleeve and the driven sleeve and are movably connected. The utility model has the advantages that: simple structure, it is with low costs, small, can change transmission direction 90, can realize carrying out the operation in little space, facilitate the use.

Description

Socket spanner

Technical Field

The utility model relates to the field of automotive technology, especially, relate to a box spanner.

Background

At present, in the installation and maintenance operations of machinery such as vehicles and the like, the socket wrench is widely used due to complete specification and convenient use. There are often times when it is necessary to install or remove bolts or nuts inside a narrow space. In this case, the operation space is very limited, and since the force applied by the conventional socket wrench can only be applied along the axis of the socket wrench and cannot change the direction, the conventional socket wrench often cannot be assembled or disassembled normally and quickly, and other peripheral areas need to be disassembled step by step to enlarge the operation space, which causes inconvenience in operation of workers and affects the work efficiency. Most of the existing sleeves capable of realizing angle conversion adopt cross shafts for direction change, and have limited direction change angles and large sizes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a simple structure, the convenient box spanner who carries out the operation in little space exist to prior art not enough.

To achieve the purpose, the utility model adopts the following technical proposal:

a socket wrench, comprising:

the connecting rod is integrally L-shaped and comprises a driving part and a driven part vertical to the driving part;

the driving sleeve is arranged on the driving part of the connecting rod and can rotate by taking the driving part as an axis;

a driven sleeve provided in the driven portion of the connecting rod and capable of rotating around the driven portion as an axis;

the dowel bar, the whole "L" shape that is of dowel bar is a plurality of dowel bar evenly distributed is in around the connecting rod, the both ends of dowel bar insert respectively the initiative cover with in the driven cover and swing joint.

Preferably, the end of the connecting rod is provided with an annular groove.

Preferably, the connecting rod with the driving cover and the driven cover junction all be equipped with annular groove complex fixed pin, the fixed pin can be right the driving cover with the driven cover carries out axial spacing.

Preferably, a limiting ring is arranged in the annular groove, and the limiting ring can axially limit the driving sleeve and the driven sleeve.

Preferably, the driving sleeve is provided with a cylindrical groove matched with the driving part of the connecting rod.

Preferably, the driven sleeve is provided with a cylindrical groove which is matched with the driven part of the connecting rod.

Preferably, one end of the driven sleeve, which is far away from the connecting rod, is provided with a sleeve capable of mounting or dismounting a bolt.

Preferably, the corners of the connecting rod are in arc transition.

Preferably, the corners of the dowel bars are in arc transition.

Preferably, the number of dowel bars is at least two.

The utility model has the advantages that: simple structure, it is with low costs, small, can change transmission direction 90, can realize carrying out the operation in little space, facilitate the use.

Drawings

FIG. 1 is an exploded view of a socket wrench according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a socket wrench according to an embodiment of the present invention.

In the figure:

1. an active sleeve; 2. a connecting rod; 3. a dowel bar; 4. a driven sleeve; 5. and fixing the pin.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes to distinguish one from another.

As shown in fig. 1-2, the utility model provides a socket wrench, which comprises a connecting rod 2, a driving sleeve 1, a driven sleeve 4 and a dowel bar 3.

The connecting rod 2 is L-shaped as a whole and comprises a driving part and a driven part which is vertical to the driving part; the driving sleeve 1 is arranged at the driving part of the connecting rod 2 and can rotate by taking the driving part as an axis, and an inner hole capable of being connected with a ratchet wrench is further formed in one end, far away from the connecting rod 2, of the driving sleeve 1; the driven sleeve 4 is arranged at the driven part of the connecting rod 2 and can rotate by taking the driven part as an axis, and one end of the driven sleeve 4, which is far away from the connecting rod 2, is also provided with a sleeve which can be used for installing or disassembling a bolt; the dowel bar 3 is integrally L-shaped, the dowel bars 3 are uniformly distributed around the connecting rod 2, and two ends of the dowel bar 3 are respectively inserted into the driving sleeve 1 and the driven sleeve 4 and movably connected.

The socket wrench is simple in structure and beneficial to miniaturization production. Simultaneously, when initiative cover 1 rotates, drive dowel steel 3 and rotate around the axis of initiative cover 1, under the restriction of follower bush 4, the relative initiative cover 1 (follower bush 4) of tip that is close to initiative cover 1 (follower bush 4) on the dowel steel 3 is along the axis direction concertina movement of initiative cover 1 (follower bush 4), thereby drive follower bush 4 and rotate around dowel steel 3, realized changing transmission direction 90, can carry out the operation in the little space, facilitate the use.

Embodiments of the present embodiment will be described below with reference to the drawings.

As shown in fig. 1, the driving sleeve 1 and the driven sleeve 4 are both cylindrical. The middle part of the driving sleeve 1 is provided with a cylindrical groove which is coaxial with the driving sleeve 1, four cylindrical auxiliary holes are arranged around the cylindrical groove, and the four auxiliary holes are orthogonally distributed on a cylindrical surface which takes the axis of the cylindrical groove as the center and has the radius of R1. The middle part of the driven sleeve 4 is also provided with a cylindrical groove which is coaxial with the driven sleeve 4, four cylindrical auxiliary holes are arranged around the cylindrical groove, and the four auxiliary holes are orthogonally distributed on a cylindrical surface which takes the axis of the cylindrical groove as the center and has the radius of R2. In other embodiments, the number of secondary holes and auxiliary holes may also be 2, 3, 5, etc. evenly distributed in the circumferential direction.

The shape of connecting rod 2 and dowel steel 3 all is "L" shape, and the turning of "L" shape connecting rod 2 and L "shape dowel steel 3 is 90, and their corner all adopts the surface of circular arc transition, can avoid producing stress concentration in the corner on the one hand, and on the other hand avoids sharp-pointed corner to cause the injury to the user.

The both ends of connecting rod 2 still are equipped with the annular groove along circumference respectively, all be equipped with two round holes that correspond with the annular groove on initiative cover 1 and the driven cover 4, stretch into initiative cover 1 when the initiative portion of connecting rod 2, the driven portion of connecting rod 2 stretches into behind the driven cover 4, insert two fixed pins 5 along two round holes from the outside of initiative cover 1/driven cover 4, make two fixed pins 5 just fall into the annular groove, and block connecting rod 2 from the both sides of annular groove, it is spacing to carry out the axial to connecting rod 2. In other embodiments, the number of the fixing pins 5 can be increased or decreased according to the actual situation, and the position of the fixing pins 5 can be changed in any tangential direction of the annular groove. In other embodiments, a limiting ring may be disposed in the annular groove, and the limiting ring is fixed to the driving sleeve 1 or the driven sleeve 4 by a bolt, so as to axially limit the connecting rod 2.

The two ends of the dowel bar 3 respectively fall into the auxiliary hole and the auxiliary hole, and in order to ensure that the friction force between the two ends of the dowel bar 3 and the auxiliary hole is small, the use is more labor-saving, and the axial lines of the two ends of the dowel bar 3 are respectively parallel to or coincident with the axial line of the auxiliary hole and the axial line of the auxiliary hole. In the present embodiment, a distance R1 between the sub-hole and the axis of the cylindrical groove is the same as a distance R2 between the auxiliary hole and the axis of the cylindrical groove. Meanwhile, when the driving sleeve 1 drives the driven sleeve 4 to rotate, the two ends of the dowel bar 3 can roll in the auxiliary hole and the auxiliary hole while reciprocating along the axis direction, so that the section of the dowel bar 3 is designed to be circular, and the friction force between the two ends of the dowel bar 3 and the auxiliary hole is further reduced.

As shown in fig. 2, the right end of the driving sleeve 1 is provided with an inner hole capable of being connected with a ratchet wrench, the upper end of the driven sleeve 4 is provided with a sleeve capable of mounting or dismounting a bolt, the driving sleeve 1 rotates under the driving action of the ratchet wrench, power is transmitted to the driven sleeve 4 through four force transmission rods 3, the driven sleeve 4 is driven to rotate, and the direction change of acting force is realized. And the rotation of the driven sleeve 4 further drives the dowel bar 3 to move axially along the driving sleeve 1, so that the harmonious matching between the parts is ensured without interference.

To sum up, the utility model discloses simple structure, low in manufacturing cost, the worm gear form and the bevel gear form that have relatively had the volume less, are fit for the installation and the dismantlement that are used for narrow space bolt and nut more.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A socket wrench, comprising:

the connecting rod (2) is integrally L-shaped and comprises a driving part and a driven part perpendicular to the driving part;

the driving sleeve (1) is arranged on the driving part of the connecting rod (2) and can rotate by taking the driving part as an axis;

a driven sleeve (4) which is provided in the driven part of the connecting rod (2) and can rotate around the driven part as an axis;

dowel steel (3), dowel steel (3) are whole to be "L" shape, and are a plurality of dowel steel (3) evenly distributed be in around connecting rod (2), insert respectively at the both ends of dowel steel (3) initiative cover (1) with in driven cover (4) and swing joint.

2. A socket wrench as claimed in claim 1,

the tail end of the connecting rod (2) is provided with an annular groove.

3. A socket wrench as claimed in claim 2,

connecting rod (2) with initiative cover (1) and from the driving sleeve (4) junction all be equipped with annular groove complex fixed pin (5), fixed pin (5) can be right initiative cover (1) with from the driving sleeve (4) carry out the axial spacing.

4. A socket wrench as claimed in claim 2,

and a limiting ring is arranged in the annular groove and can axially limit the driving sleeve (1) and the driven sleeve (4).

5. A socket wrench as claimed in claim 1,

the driving sleeve (1) is provided with a cylindrical groove matched with the driving part of the connecting rod (2).

6. A socket wrench as claimed in claim 1,

the driven sleeve (4) is provided with a cylindrical groove matched with the driven part of the connecting rod (2).

7. A socket wrench as claimed in claim 1,

and one end of the driven sleeve (4) far away from the connecting rod (2) is provided with a sleeve capable of mounting or dismounting a bolt.

8. A socket wrench as claimed in claim 1,

the corners of the connecting rods (2) are in arc transition.

9. A socket wrench as claimed in claim 1,

and the corners of the dowel bars (3) are in arc transition.

10. A socket wrench as claimed in claim 2,

the number of the dowel bars (3) is at least two.

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