CN2158328Y

CN2158328Y - Wrench of reciprocating type

Info

Publication number: CN2158328Y
Application number: CN 93218993
Authority: CN
Inventors: 丁晓利
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-22
Filing date: 1993-07-22
Publication date: 1994-03-09
Anticipated expiration: 2003-07-22

Abstract

The utility model relates to a wrench of reciprocating type, comprising wrench handles (9), (10), and a sleeve with inside hexagon (2). Both ends of each wrench handle are cylinders. A pair of ratchet wheel bevel gears (4), (15) is positioned in the cylinders. A middle bevel gear (1) is arranged between the ratchet wheel bevel gears. The ratchet wheel bevel gear (4) is sheathed on the sleeve with inside hexagon (2). The ratchet wheel bevel gear (15) is connected with the sleeve with inside hexagon (2) by a key (16). When the wrench makes reciprocating rotation, ratchet pawls (6) and (14) work one after the other, and respectively drive the ratchet wheel bevel gears (4), (15). The sleeve with inside hexagon always does rotary work along the same direction, through the middle bevel gear (1) and the key (16). The utility model can realize that the wrench can do reciprocating work, and has the advantages of convenient operation, time saving, and high efficiency.

Description

Wrench of reciprocating type

The utility model relates to a kind of reciprocating type spanner.

The spanner that uses all is single rotation direction operation type at present, promptly when parbuckle screw, the a certain rotation direction work of spanner, opposite rotation direction is not then worked, especially under the restricted situation of condition of work, when parbuckle screw, after spanner rotates to an angle, must throw off with nut, angle of backspace is enclosed within again rotates an angle again on the nut, carry out so repeatedly.Like this, not only inefficiency also often brings many inconvenience for the operator.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and a kind of reciprocating type spanner is provided, and the realization double rotational directions is all worked, and does not need to throw off, put with nut repeatedly.

The purpose of this utility model is achieved in that it comprises trigger piece, the interior square socket of going up.Trigger piece divides upper and lower two parts, be integrated by bolt is stubborn, its two ends are cylindrical drum, and interior six square sockets are equipped with at the cylindrical drum center, each ratchet bevel gear of two inner faces of cylindrical drum, be installed in the two ends of interior six square sockets respectively, be provided with Intermediate bevel gears between two ratchet bevel gears, ratchet is equipped with in the ratchet corresponding position of column casing two ends, garden and two ratchet bevel gears, between ratchet and cylindrical drum spring is housed, the ratchet of two ratchet bevel gears is meshed with ratchet respectively, and its tooth is meshed with Intermediate bevel gears respectively.The ratchet rotation direction unanimity of two ratchet bevel gears, a sky is enclosed within on interior six square sockets, and one is connected with key with interior six square sockets.When spanner during along the rotation of a certain direction, ratchet drives the empty ratchet bevel gear rotation that is enclosed within on interior six square sockets, drives another ratchet bevel gear rotation by Intermediate bevel gears, makes interior six square sockets rotate in the opposite direction and work to revolving with trigger piece by key.At this moment, the ratchet and ratchet slip of the ratchet bevel gear that connects by chain.When trigger piece rotates in opposite direction, ratchet and ratchet that sky is enclosed within the ratchet bevel gear on interior six square sockets slide, and another ratchet drives the ratchet bevel gear rotation that is connected by key, make interior six square sockets along the direction rotation identical by key, and then realize the purpose of working in reciprocating mode with above-mentioned direction of rotation.

Therefore the utility model does not need spanner is thrown off, put with nut repeatedly when work owing to realized the working in reciprocating mode of double rotational directions, easy to operate, the time-saving and efficiency, and it is restricted and be the occasion of batch working to be specially adapted to the trigger piece anglec of rotation.

Accompanying drawing 1 is the structural representation of this utility model;

Accompanying drawing 2 is the outside drawing of this utility model;

Accompanying drawing 3 is ratchet, ratchet mesh schematic representation.

Embodiment describes the utility model in detail below in conjunction with (accompanying drawing).

The utility model comprises trigger piece (9), (10) and interior six square sockets (2), trigger piece (9), (10) be integrated by bolt (11) is stubborn, trigger piece (9), (10) two ends are cylindrical drum, interior six square sockets (2) are equipped with at the cylindrical drum center, two inner faces of cylindrical drum respectively have ratchet bevel gear (4) and (15), wherein, ratchet bevel gear (4) sky is enclosed within an end of interior six square sockets (2), ratchet bevel gear (15) connects the other end that is contained in interior six square sockets (2) by key (16), is provided with Intermediate bevel gears (1) between two ratchet bevel gears (4) and (15).The ratchet corresponding position of column casing two ends, garden and ratchet bevel gear (4) and (15) has groove, is fixed with ratchet (6) and (14) by screw (7) and (13) respectively in the groove, and spring (17) is housed between two ratchets (6) and (14) and garden column casing.The ratchet of two ratchet bevel gears (4) and (15) is meshed with ratchet (6) and (14) respectively, and its tooth is meshed with Intermediate bevel gears (1) respectively.The ratchet rotation direction of two ratchet bevel gears (4) and (15) is consistent.Have the garden groove on two inner faces of trigger piece (9) and (10) garden column casing, be processed with ball-and-socket on the end face of two ratchet bevel gears (4) and (15), be placed with ball (5) between garden groove and ball-and-socket, every end ball (5) is no less than 3 garden Zhou Junbu.The end face of Intermediate bevel gears (1) is a sphere, and its top is processed with ball-and-socket, and the garden has all grooves in the column casing of the trigger piece corresponding with it (9) garden, and ball (12) is housed between ball-and-socket and all grooves.Intermediate bevel gears (1) is 2 or 2 above garden Zhou Junbu.Interior six square sockets (2) the two ends trigger pieces (9) and column casing two outsides, (10) garden are fixed with limiting plate (3) by screw (8), move axially to prevent interior six square sockets.

If revolve when rotating in the opposite direction along the ratchet of ratchet bevel gear (4) trigger piece (9) and (10), ratchet (6) driving pawl bevel gear (4) is rotated to the direction opposite with ratchet bevel gear (4) by Intermediate bevel gears (1), driving pawl bevel gear (15) to the direction rotation identical with (10) rotation direction with trigger piece (9).Six square sockets (2) are to direction rotation and the work opposite with (10) with trigger piece (9) in driving by key (16) again.At this moment, ratchet (14) slides with the ratchet of ratchet bevel gear (15).When trigger piece (9) and (10) and above-mentioned direction reverse rotation, the ratchet of ratchet (6) and ratchet bevel gear (4) slides, ratchet (14) driving pawl bevel gear (15) is to rotating with trigger piece (9) and (10) equidirectional, and six square sockets (2) are done rotation and the work identical with above-mentioned direction in driving by key (16).

Claims

1, a kind of reciprocating type spanner, it comprises trigger piece, interior six square sockets, on it is characterized in that trigger piece divides, following two parts, be integrated by bolt is stubborn, its two ends are cylindrical drum, interior six square sockets are equipped with at the cylindrical drum center, each ratchet bevel gear of two inner faces of cylindrical drum, be installed in the two ends of interior six square sockets respectively, be provided with Intermediate bevel gears between two ratchet bevel gears, ratchet is equipped with in the ratchet corresponding position of column casing two ends, garden and two ratchet bevel gears, between ratchet and cylindrical drum spring is housed, the ratchet of two ratchet bevel gears is meshed with ratchet respectively, and its tooth is meshed with Intermediate bevel gears respectively.

2, reciprocating type spanner according to claim 1 is characterized in that the ratchet rotation direction unanimities of two ratchet bevel gears, and sky is enclosed within on interior six on the square socket, and one is connected with key with interior six square sockets.

3, reciprocating type spanner according to claim 1 is characterized in that having the garden groove on trigger piece cylindrical drum two inner faces, is processed with ball-and-socket on the two ratchet bevel gear end faces, is placed with ball between garden groove and ball-and-socket, and every end ball is no less than 3, garden Zhou Junbu.

4, reciprocating type spanner according to claim 1 is characterized in that the Intermediate bevel gears end is a sphere, and its top is processed with ball-and-socket, and garden has all grooves in the trigger piece garden column casing corresponding with it, between ball-and-socket and all grooves ball is housed.

5, reciprocating type spanner according to claim 1 is characterized in that Intermediate bevel gears is 2 or 2 above garden Zhou Junbu.

6, reciprocating type spanner according to claim 1 is characterized in that a limiting plate respectively is equipped with in the column casing outside, trigger piece garden at interior six square socket two ends.