CN201095087Y - Socket wrench with reversing ratchet wheel - Google Patents

Abstract

A quick socket wrench capable of greatly reducing the force required for removing a nut or bolt, the wrench comprises a large helical gear and a small helical gear respectively mounted on a drive shaft and an output shaft; the torque shaft is located at the outer end of the output shaft, and a reversing ratchet mechanism is provided to lock the torque shaft; compared with a conventional wrench, the socket wrench of the utility model has a special structure and component configuration, so that it can greatly reduce the force required for removing a nut or bolt; the utility model provides an improved T-handle, which can be used in conjunction with a wrench tool having a drive shaft that can rotate around its axis; the T-handle rod is provided with an end member that is generally L-shaped, the shorter foot of the end member extends outward at an angle of, for example, about 45 degrees, and the end member can swing around the aforementioned drive shaft at its center, so that the end member and the aforementioned drive shaft form an angle. Thus, the formed lever arm is parallel to the aforementioned drive shaft during operation.

Description

Socket wrench with return ratchet

technical field

The utility model relates to hand tools for fastening or loosening nuts, in particular to a socket wrench that can turn the nut without too much effort. Therefore, in the working environment with limited space, the nut can be easily tightened or loosened.

Background technique

The structure of the socket wrench of conventional items is generally that the head end is integrally extended with a suitable long handle, and the head end is provided with a vertical circular chamber for a twisting head positioning device, and ratchets are provided through the chamber wall And the two sides of the twisting head are equipped with corresponding brake blocks. When the adjustment knob is turned right or left on the top of the twisting head, the brake block can be moved to protrude and change on the side of the twisting head, and can be either right or left. The left side meshes with the ratchet set on the wall of the chamber, so that the twist head can output right or left torque in the chamber at the head end, and operate the hexagonal nut to tighten or loosen. In fact, when using a socket wrench to operate the tightening of the hexagonal nut, the square insert of the twist head is the torque output end, and the handle is the torque input end of the pull, that is, the torque output is vertical. The bottom collides with the hexagonal nut, and the torque input end of the pull is at a horizontal angle with it. When the palm holds the handle to operate the reciprocating stroke, it is difficult to maintain a certain level (up and down shake irregularly), while It affects the stability of the twisting head against the hexagonal nut, and eventually there will be instability in the torque output, which makes the operation difficult; moreover, at the initial stage of tightening the hexagonal nut, the screwing of the hexagonal nut on the object has not yet reached an appropriate tightness. Solid force, while the handle is ready for the return stroke of the next torque input, the hexagonal nut has no tightening force to counteract the twisting head, at this time the twisting head and the hexagonal nut that conflicts with it will be synchronized by the handle Driven, turning in the direction of losing the tightening, and it is obvious that the hexagonal nut fastening operation is not smooth and difficult at the initial stage; moreover, if the length of the hexagonal nut is a little long and the proper tightening force has not yet been reached, and the handle is difficult to maintain level Twist back and forth, and this will affect the accurate pressing of the twisting head to the nut, which will easily cause the failure of the fastening operation.

The operational defects of the socket wrench of the above known technology have been plagued by consumers for a long time. Therefore, whether it is possible to provide a socket wrench with dual torque output forms of reciprocating wrenching and axial rotation is of great interest. Further improvements are necessary.

Contents of the invention

The purpose of this utility model is to overcome the above-mentioned defects of the prior art, and provide a socket wrench equipped with a reversing ratchet, which mainly enables the socket wrench to have the torque output function of axis rotation; the structure of the wrench is compact and reliable, It is especially suitable for use in places that are usually inaccessible and where space is limited.

The wrench of the present invention can disassemble inaccessible nuts without difficulty, it can be adjusted easily and quickly without suffering breakage or loss of working ability; the wrench of the present invention is of strong and durable construction , Simple and cheap, and very suitable for use.

The purpose of this utility model is achieved through the following technical solutions. A socket wrench equipped with a reversing ratchet provided by this utility model includes:

an elongated handle;

a drive shaft coaxially mounted in the handle;

a large helical gear mounted on one end of the drive shaft;

A handle member installed near the other end of the drive shaft, the handle member includes a cross bar member pivotally mounted on the drive shaft in its middle portion, at least one end of the cross bar member is connected with the cross bar member The main part extends at an angle;

The stop member arranged on the drive shaft is used to prevent the cross bar member from swinging beyond a certain angle formed with respect to the normal of the drive shaft. The angle is the complement of the certain angle, so that when the rod member is engaged with the stop member, the end of the rod will be parallel to the drive shaft, and in an operating state, the end will be parallel to the drive shaft;

The drive shaft is formed as an integral device with the large helical gear, and the handle member can be rotated to directly rotate the helical gear. The drive shaft is a helical gear extending from one end of the drive shaft to the other end of the drive shaft. A single linear continuous axis of the handle;

an output shaft installed in the head end close to the large helical gear, the output shaft extends in a direction perpendicular to the drive shaft;

A small helical gear mounted on the output shaft and equipped with a body, the small helical gear meshes with the aforementioned large helical gear;

a coaxial torsion shaft fixed to the output shaft, the torsion shaft extending outwardly from the output shaft;

a shim plate provided with a smaller diameter interior serving as a thrust washer, the shim plate being mounted on the small helical gear body;

a ratchet wheel with a plurality of teeth disposed on its circumference, the ratchet wheel being mounted on the torsion shaft for rotation therewith; and means for releasably engaging the ratchet wheel to prevent rotation of the torsion shaft.

In the socket wrench of the present invention, it is equipped with a large helical gear and a small helical gear, and each gear is attached to a shaft; the large helical gear is attached to the T-shaped handle, while the small helical gear is attached to the output shaft Institutional.

In one embodiment, each shaft is equipped with a pair of spacers; while holding the wrench handle and turning the T-shaped handle, the drive shaft, output shaft and torque shaft can be rotated; in one embodiment, the inner end cover The outer end cover is installed on the outside of the head end near the position where the torsion shaft runs through the head end; the end cover cooperates to form a locking mechanism; when the end cover is in the locked position, the utility model wrench can be traditionally Use like a wrench; when the end cover is in the unlocked position, you can turn the T-shaped handle by hand to make the torque shaft rotate; the gear of the utility model wrench can rotate freely in any direction, and the gear ratio and size can be adjusted according to the size of the wrench Change.

In another embodiment a reversing ratchet is used which comprises a ratchet engaging the torsion shaft and means for locking the ratchet against rotation of the torsion shaft.

The T-shaped handle used in the utility model wrench has to be equipped with an L-shaped end member; the end member has a shorter foot extending outward at an angle of, for example, about forty-five degrees, and the center of the end member is Pivoted on a vertical shaft in the handle of the wrench, each side of the main shaft is angled at, for example, about forty-five degrees.

Compared with the traditional wrench, the utility model wrench can greatly reduce the force required to disassemble the nut or bolt; the utility model wrench uses leverage in two ways, instead of using leverage in only one way like the traditional wrench: (1) Provide torque so that the nut or bolt is fastened or loosened; (2) Provide speed, the utility model wrench can make the nut or bolt rotate twice when the handle is turned one turn, while the previous wrench turns one turn One turn can only make the bolt and nut move less than ^1/4 _turn .

Other features of the utility model include: (1) the required operating space is smaller than that of the traditional wrench; (2) it is especially effective for loading and unloading long bolts due to repeated repetitions; it is also particularly effective for loading and unloading bolts with the least resistance, Because other traditional wrenches need resistance; (3) because the wrench handle does not move, the wrench sleeve is not easy to slip and break away from the nut or bolt.

Description of drawings

Fig. 1 is the assembled sectional side view of socket wrench of the present invention;

Fig. 2 is the right end view of Fig. 1, wherein the outer end cover has been removed;

Fig. 3 is a plan view of the outer end cover of Fig. 1;

Fig. 4 is an end view of the second possible embodiment of the utility model equipped with a reversing ratchet;

Fig. 5 is the side end view of Fig. 4 embodiment;

Fig. 6 is an enlarged view of Fig. 4, showing schematic diagrams of three relevant positions of the ratchet pawl;

Fig. 7 is an enlarged view of Fig. 4, showing schematic diagrams of three relevant positions of the ratchet pawl;

Fig. 8 is an enlarged view of Fig. 4, showing schematic diagrams of three relevant positions of the ratchet pawl;

Fig. 9 is an end view of a third possible embodiment of the present invention;

Fig. 10 is a sectional side view of Fig. 9;

Fig. 11 is an exploded perspective view of Fig. 9;

Fig. 12 is a plan view of the locking member in Fig. 9;

Fig. 13 is another possible embodiment diagram of the T-shaped handle that can be used instead in the present utility model;

Fig. 14 is an exploded perspective view of the T-shaped handle in Fig. 13;

Fig. 15 is a schematic diagram of the operation of the T-shaped handle in Fig. 13 .

Explanation of reference signs: 10-wrench; 12-drive shaft; 14-output shaft; 16-large helical gear; 18-small helical gear; 20-handle; 21-grip end; 22-gasket; 25-gasket; 26-gasket; 28-gasket; 30-head end; 32-torque shaft; 34-T handle; 36-inner end cover; 38-opening; 40-screw; 42- Lug member; 44-stop member; 48-outer end cover; 50-plane part; 52-box part; 54-inner hole; 56-groove; 58-spring mechanism; 60-opening; ;72-box type; 74-hole; 76-screw; 78-ratchet claw; 79-lower end; 80-claw shell; 82-spring; 84-drive surface; 86-tooth; End; 104-gasket plate; 106-output shaft; 108-ratchet; 110-tooth; 112-locking member; 114-tooth; 116-groove; 118-ball; ;125-vertical groove; 126-inner surface; 127-gear body; 128-clasp ring; 129-helical gear; 130-outer clasp; -ball; 135-shaft; 136-clasp; 137-groove; 138-lever; 140-handle; 141-lug; Helical gear; 150-T-handle; 152-drive shaft; 154-lever arm; 156-middle part; 158-spring pin; 160-groove; 162-hole; Inner end surface; 167—inner end surface.

Detailed ways

As shown in the embodiment of the utility model in Figures 1 to 3, the quick socket wrench 10 has a drive shaft 12 and an output shaft 14, and the large helical gear 16 and the small helical gear 18 that mesh with each other are installed on the drive shaft 12 and the output shaft respectively. on axis 14.

The drive shaft 12 is installed in the handle 20, so that it can rotate freely in the pads 22, 24 respectively installed on one end of the handle; the output shaft 14 is installed in a pair of pads 26, 28 in a similar manner. Gaskets 26, 28 are installed in the head end 30 formed on the upper end of the handle 20; the torsion shaft 32 is located on the outer end of the output shaft 14; The small helical gears 16, 18 remain in proper mesh; the shank 20 and head end 30 are additional supports for the drive shaft 12, output shaft 14 to prevent shaft bending.

The drive shaft 12 is installed at an angle of 90 degrees with the output shaft 14; therefore, the drive shaft 12, the output shaft 14 and the torque shaft 32 are rotated by rotating the T-shaped handle 34 installed at the lower end of the drive shaft 12; the gasket 25 is mounted on the upper end of the drive shaft 12 in the head end 30 to form a smooth surface for the large helical gear 16 .

The T-shaped handle 34 is used to provide torque leverage to the drive shaft 12; an L-shaped handle as described below may also be used; L-shaped configuration, or made as a two-piece swivel configuration; handle 20 is sized to fit a gripping end 21 in the palm of a person's hand; first end cap made as a planar member with a circular central opening 38 Or the inner end cover 36 is positioned on the outside of the gasket 28, and is fixed on the surface of the head end 30 by such as screws 40; at the position where the output shaft 14 passes through the first inner end cover 36, the section of the output shaft 14 The cross section is changed from circular to square; the inner end cover 36 can ensure the precise meshing of the large and small helical gears 16 and 18 by fixing the gasket 28; the middle part located on the outer surface of the lower end of the inner end cover 36 is a lug Component 42, the lug component 42 is used to lock the wrench; the inner and outer curved parts of the lug 42 are circular, and the two ends are also circular to distribute the shear force on the lug 42; The ear 42 is flared outwardly from its point attached to the inner end cap 36 near the rounded end of the lug 42; this configuration makes the outer end of the lug 42 larger in size and helps the locking mechanism to remain engaged during use. .

The hemispherical stop member 44 is fixed on the upper surface of the torsion shaft 32 and is close to the outer end of the torsion shaft 32; the stop member 44 is assembled in the groove 56 of the second end cover or the outer end cover 48, and is positioned according to the outer end cover 48 On the outer end of the torsion shaft 32; the outer end cover 48 includes a planar portion 50, which is equipped with a box-shaped portion 52 extending outward; the outer end cover 48 has a substantially square shape The inner hole 54 is provided with a groove 56 extending outward and parallel to the longitudinal axis of the output shaft 14; as shown in Figure 1, the size of the inner hole 54 is just enough to receive the outer end of the output shaft 14; the groove The inner end of the groove 56 terminates at a position close to the plane portion 50; and from this position, the portion of the plane portion 50 close to the upper surface of the torsion shaft 32 is provided with a rounded or chamfered structure, so that the outer An end cap 48 fits over the stop member 44 .

The spring mechanism 58 is positioned between the outer end of the torsion shaft 32 and the outer end wall of the box-shaped portion 52 of the outer end cover 48 with a pushing relationship; The release of the pressure on the surface forces the inner end cap 36 apart from the outer end cap 48 .

The locking mechanism is easily engaged by aligning the lug 42 on the inner end cap 36 with any opening 60 in the outer end cap 48; the opening 60 is shaped to fit the lug 42 and is large enough to receive The outward sloping portion of the lug 42 is sized larger than its portion near the inner portion of the inner end cap 36 according to the size of the outward sloping portion of the lug 42; Make the wrench head end 30 directly push the nut or bolt that you want to turn, then the surfaces of the inner end cover 36 and the outer end cover 48 will move to the position where they are flush and close to each other, so that the outer end cover 48 can be blocked. The torsion shaft 32 rotates; in this locking situation, the wrench 10 is used in a conventional manner by applying pressure on the gripping end 21 of the handle 20 so that the gripping end 21 turns about the axis of the torsion shaft 32;

Once locked, the wrench 10 will remain in the locked position as long as it remains in contact with the nut or bolt under pressure; The static force between the lug 42 and the opening 60 on the outer end cover 48 is greatly increased due to the application of force on the grip end 21; the static friction force acting on the grip end 21 is far greater than the elastic force of the spring mechanism 58 during use. Therefore, the spring 58 is only after the release of the pressure that the wrench 10 presses on the nut or the bolt, so that the inner end cover 36 is separated from the outer end cover 48; When moving outward, the stop member 44 prevents the outer end cap 48 from disengaging from the torsion shaft 32, because the stop member 44 will touch the inner wall of the groove 56 (as shown in FIG. 1 ); in this unlocked position, a T-shaped handle must be used 34 to control the rotation of the torsion shaft 32, so that the wrench 10 can still be used when the traditional wrench operation is difficult or impossible to implement.

The lug 42 must be positioned sufficiently below the torsion shaft 32 so as not to interfere with the operation of the sleeve; and the outer end cap 48 must be made of a sufficiently resilient material so that the outer end cap 48 fits the lug. 42 engages and disengages and facilitates assembly of the outer end cap 48 relative to the stop member 44 .

The particular advantage of the construction of the wrench of the present invention is that when using the wrench in the traditional way, all the gears are not subjected to pressure.

In one embodiment of the present invention, the diameter _of its drive shaft 12 of the wrench 10 is ^3/8 inch, _the diameter of the output shaft 14 is 3/16 inch, and the size of the square torque shaft 32 is ^1/4 inch ; In this embodiment, the diameter of the large helical gear 16 is about 1.04 inches, while the diameter of the small helical gear 18 is 0.59 inches; the thickness of the planar portion of the outer end cap 48 and the inner end cap 36 is about 1 /16 inch, and the length of lug 42 is about 3/32 inch; the diameter of stop member 44 is about 1/16 inch, and the length of groove 56 is about 5/32 inch.

In the embodiment shown in FIGS. 4-8 , the locking mechanism includes a reversing ratchet 70, which has a box-shaped portion 72 extending outward and having a square section; the reversing ratchet 70 and the box-shaped portion Be provided with a section in 72 and be the hole 74 of square shape, the size of this hole 74 is suitable enough to accommodate square torsion shaft 32;

The L-shaped ratchet claw 78 with the lower end 79 is installed in the claw housing 80 to engage with the reversing ratchet 70. The claw housing 80 is fixed on the surface of the head end 30, and the ratchet claw 78 is free to move along its axis. , and is pushed by the spring 82 to mesh with the reversing ratchet 70; as shown in Fig. Engagement; in Fig. 8, the ratchet claw 78 has rotated ^1/4 circle and is trapped in the gap, so that the reversing ratchet 70 can rotate freely without engaging with the ratchet claw 78; the _appropriate opening at the lower end of the claw housing 80 can make the ratchet claw 78 Position as described in the text.

In this implementation, the reversing ratchet 70 has a diameter _of 1 inch and the length of the box 72 is ^3/8 inch; each ratchet tooth 36 has a transverse dimension of about _0.13 inch and a thickness of about ^1/8 inch. _{The tooth-to-tooth gap is about 0.131 inch, and the height of each tooth is about 1/8 inch; in this embodiment, the diameter of the upper end of the ratchet pawl 78 is about 1/8} ^{inch .}

As shown in FIGS. 9-12 , the figures show an alternative structure for locking the wrench 100 in another embodiment of the present invention. In this embodiment, a ratchet 108 with a plurality of teeth 110 is installed in the end of the wrench head 102 and adjacent to the spacer plate 104; the centerline of the ratchet 108 is the same as the centerline of the output shaft 106, and it is attached On the output shaft 106; the locking member 112 with a semicircular outline is pivotally arranged in the head end 102 close to the ratchet 108, and the locking member 112 and the ratchet 108 are located on a plane perpendicular to the center line of the output shaft 106 On; the locking mechanism 112 acting as the ratchet pawl 78 has two groups of teeth 114, and each tooth 114 is located on the outer surface closest to the ratchet 108; the two groups of teeth 114 are the same, and are locked against each other. The member 112 is symmetrical to the centerline of the ratchet 108 ; by rotating the locking member 112 in any direction, the teeth 114 of the ratchet 108 can be engaged with the teeth 110 of the ratchet 108 .

As shown in Figure 12, the outer surface of the locking member 112 opposite to the ratchet 108 is provided with two grooves 116; It is symmetrical; the groove 116 is set so that when the ball 118 exerts pressure on the outer surface of any groove 116, a group of teeth 114 and the ratchet 108 on the opposite side of the groove 116 are engaged; the balls braked by the spring 120 118 is installed in the wrench head end 102, and is located on the vertical plane passing through the center line of the locking member 112 and the ratchet 108; the handle 140 is inserted into the head end 102 by means of fitting and sliding fit, and The shank 140 is welded to the head end 102, and the gasket 144 is arranged between the inner end of the shank 140 and the drive shaft 146 by means of press fit, so that the wrench head end 102 is fixed on the shank 140 The top surface of the gasket 144 is flush with the top surface of the handle 140; in one embodiment, the diameter of the gasket 144 is equal to the diameter of the gear body 147 (as shown in Figure 10); in this embodiment , the gear body 147 is placed on the gasket 144, and the gasket 144 is used as a thrust washer to reduce the frictional force of the rotation of the helical gear 149.

When the middle portion groove 116 of the locking member 112 is symmetrical to the center line between the locking member 112 and the ratchet 108, a vertical groove 125 is provided on the outer surface farthest from the ratchet 108; the vertical groove 125 is used to The locking member 112 is stabilized at a position where any tooth portion 114 does not contact the ratchet wheel 108 .

As shown in Figure 11, other components installed on the output shaft 106 include a spacer plate 104 whose inner surface 126 is suitable as a thrust washer, a buckle 128 interposed between the spacer plate 104 and the ratchet 108, and a The outer clasp 130 attached to the outside of the ratchet 108 ; the check spring 132 and the ball 134 are installed in the outer end of the output shaft 106 in a conventional manner.

As shown in Figures 10 and 11, the gear body 127 of the helical gear 129 is embedded in the spacer plate 104; the helical gear 129 and its gear body 127 are fixed on the inner shaft part 131 by conventional means such as screws; the shaft part _The diameter of 131 must be as small as ^1/4 inch; the diameter _of the gear body 127 must be, for example, about ^1/2 inch; the output shaft 106, which is located outside the gear body 127, is a square section with a relatively large section. The shaft portion 133 and the _shaft portion 135 with a relatively small section; the output shaft 106 and the shaft portion 131 are integrally formed; the length of each side of the square cross section is ^1/2 inch and the shaft portion 133 is equipped with an inner buckle Ring 128, ratchet 108 and outer clasp 130, wherein the outer clasp 130 is fitted in the groove 137 _{of shaft portion 133; each side of its square section of shaft portion 135 is about 3/8} ^inches long, A non-return spring 132 and a ball 134 are mounted on the shaft portion 135 ; in an alternative embodiment, the shaft portions 133 and 135 are hexagonal or octagonal in shape.

Other components that assist in the movement of the locking member 112 include a buckle 136 and a lever 138 with a central lug 141; After rotating counterclockwise through a limited arc, the driving lever 138 drives the locking member 112 to act as described above; in one embodiment, the helical gears 129 and 149 are equipped with 10 straight helical teeth, and The ratchet 108 is equipped with 32 teeth.

As shown in Figures 13 to 15, in an alternative embodiment of the T-handle, by bending one end of the elongated T-handle 150 to make an angle such as forty-five degrees with the main part of the T-handle 150, and The T-handle 150 is mounted on the drive shaft 152 such that it is rotated relative to the drive shaft 152 at an angle such as forty-five degrees, so that the lever arm 154 will be parallel to the drive shaft 152 when pulled (as shown in FIG. 15 ). Other angles can also be used, such as the relationship between 60 degrees and 30 degrees or 30 degrees and 60 degrees, as long as the sum of the two angles is 90 degrees, that is, the two angles are complementary to each other.

As shown in the detail view of FIG. 14 , the T-shaped handle 150 is rotatably mounted on the end of the drive shaft 152 , wherein the middle portion 156 of the T-shaped handle with a smaller width is mounted on the drive shaft 152 by a spring pin 158 In the central longitudinal slot 160 of the outer end; when doing this combination, the spring pin 158 must pass through the hole 162 on the parallel end 163 of the slot 160 near the drive shaft 152 and pass through the T-shaped handle middle part 156 transversely. The hole 164; use of this type of rotation is constructed to prevent the T-handle from being operated at an awkward angle without compromising the smooth operation of the T-handle.

As shown in FIGS. 13 and 15 , the inner end surfaces 166 , 167 of the drive shaft groove 160 are formed at an angle by slanting upward to both sides from a centerline extending transversely through the drive shaft 152 , wherein the center line is located in a drive shaft 152 . , and this plane passes through the longitudinal axis of the spring pin 158; as previously mentioned, the angles of the sides of such inner end surfaces 166, 167 with respect to the axis of the drive shaft 152 must be selected so that they are aligned with the lever arm 154 relative to the extension line of the main part of the T-shaped handle 150 is complementary to each other; then, as shown in FIG. , the lever arm 154 will be parallel to the drive shaft 152; therefore, the main part of the T-shaped handle 150 must be pivoted on the spring pin 158, so that when the handle is in the swing position as shown in Figure 15, the T-shaped handle 150 will be smooth. Closely abut on the inner end surface 166 or 167 and make the main axis of the T-shaped handle 150 parallel to each inner end surface 166 or 167; then, the lever arm 154 must rotate around the drive shaft 152 to produce the desired rocking action; And it is necessary to maintain a constant speed of motion without removing the handle from the wrench; using this rotary configuration eliminates the T-handle from operating at awkward angles without losing the smooth operation of the T-handle. Such an embodiment has the following advantages:

1. Provide a third mode of operation for the socket wrench tool; just adjust the handle on the wrench tool to use the tool in the third mode of operation.

2. In the other two operation modes, there will be no hindrance to the use.

3. In fact, it can be used in other operation modes:

(a) Ratchet... requires less space to rotate.

(b) T-shaped handle...The actual length is longer than the T-shaped handle, which can be easily held by the palm (thumb).

4. This configuration is particularly advantageous for excessively long bolts or when working with minimal resistance.

5. Easy to manufacture and low cost.

However, the above description is only an embodiment of the present utility model, and is not intended to limit the embodiment of the present utility model; those who are familiar with this technology can make other equivalents according to the characteristic category of the present utility model. Changes or modifications, such as size, material selection, or shape changes, etc., should be covered within the scope of the following patent applications for this utility model.

Claims (5)

1. A socket wrench configured with a reverse ratchet, characterized in that it comprises: an elongated handle; a drive shaft coaxially mounted in the handle; a large helical gear mounted on one end of the drive shaft; A handle member installed near the other end of the drive shaft, the handle member includes a cross bar member pivotally mounted on the drive shaft in its middle portion, at least one end of the cross bar member is connected with the cross bar member The main part extends at an angle; The stop member arranged on the drive shaft is used to prevent the cross bar member from swinging beyond a certain angle formed with respect to the normal of the drive shaft. The angle is the complement of the certain angle, so that the end of the rod will be parallel to the drive shaft when the rod member is engaged with the stop member, so that the end and the drive shaft will be aligned in one operating state. parallel; The drive shaft is formed as an integral device with the large helical gear, and the handle member can be rotated to directly rotate the helical gear. The drive shaft is a helical gear extending from one end of the drive shaft to the other end of the drive shaft. A single linear continuous axis of the handle; an output shaft installed in the head end close to the large helical gear, the output shaft extends in a direction perpendicular to the drive shaft; A small helical gear mounted on the output shaft and equipped with a body, the small helical gear meshes with the aforementioned large helical gear; a torsion shaft fixed to the output shaft so as to be coaxial therewith, the torsion shaft extending outwardly from the output shaft; a shim plate provided with a smaller diameter interior serving as a thrust washer, the shim plate being mounted on the small helical gear body; a ratchet wheel with a plurality of teeth disposed on its circumference, the ratchet wheel being mounted on the torsion shaft for rotation therewith; and means for releasably engaging the ratchet wheel to prevent rotation of the torsion shaft. 2. The socket wrench configured with a reversing ratchet as claimed in claim 1, wherein an inner buckle is sleeved between the gasket plate and the ratchet on the torsion shaft, and the inner buckle is fitted in In the groove provided on the body, and on the torsion shaft, an outer clasp is installed outside the ratchet, and the outer clasp is fitted in the groove provided on the torsion shaft. 3. The socket wrench equipped with a reversing ratchet as claimed in claim 2, characterized in that: the cross section of the torsion shaft is square, and the torsion shaft has a longitudinal portion with a relatively large cross section, the longitudinal portion is used to install The ratchet and the inner buckle and the outer buckle. 4. The socket wrench configured with a reverse ratchet as claimed in claim 1, wherein the handle is installed in the head end and extends outward from the head end, and the drive shaft is installed in the handle , and a spacer is installed on the inner end of the handle between the handle and the drive shaft; the body of the helical gear is engaged with the spacer, and the spacer can be used as a thrust washer to reduce the helical gear Friction during rotation. 5. The socket wrench configured with a reverse ratchet as claimed in claim 1, wherein the engaging device includes a locking member pivotally arranged in the head end, and the locking member includes a set of Teeth on both sides for meshing with the ratchet, and grooves on both sides of its lower surface for engagement with balls when the locking member rotates.

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