CN213352259U

CN213352259U - Anti-shaking magnetic lock reversing wrench

Info

Publication number: CN213352259U
Application number: CN201920579997.9U
Authority: CN
Inventors: 杨伟开
Original assignee: Xinchang Kaierte Electric Appliance Co ltd
Current assignee: Xinchang Kaierte Electric Appliance Co ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2021-06-04
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses a prevent rocking magnetic lock switching-over spanner, the utility model discloses an increase the baffle that the diameter is greater than switching-over pushing disk at the top of commutator, the pore wall cooperation through baffle and wrench mounting hole forms the support to the wrench end, can reduce the switching-over drive power, improves the stability of wrench during operation, and reducing wear adds long life, has solved the spanner and has rocked easily and lead to the problem of wearing and tearing in the utility model discloses the use.

Description

Anti-shaking magnetic lock reversing wrench

Technical Field

The utility model belongs to the technical field of hand tool, especially, relate to with a prevent rocking magnetic lock switching-over spanner.

Background

The existing reversing wrench adopts a ratchet mechanism to realize the wrench which is stressed to work and reset and idle-run to circulate, the reversing mechanism of the wrench is complex, and large steering force also needs to be applied, so that the problem that the existing reversing wrench is inconvenient to reverse is caused.

SUMMERY OF THE UTILITY MODEL

The inconvenient problem of switching-over to the current switching-over spanner existence, the utility model aims at providing a prevent rocking magnetic lock switching-over spanner that spanner stability is good.

Therefore, the utility model adopts the following technical scheme: a shake-proof magnetic lock reversing wrench comprises a handle, a wrench head and a reversing mechanism, wherein the head of the handle is provided with a wrench head mounting hole for accommodating the wrench head, the wrench head comprises a wrench head part and a mounting shaft part, and the mounting shaft part is arranged in the wrench head mounting hole in a penetrating manner and is axially limited through a wrench head axial limiting mechanism; the peripheral surface of the mounting shaft part is provided with at least one roller limiting surface; the reversing mechanism comprises a reverser, rollers, roller axial limiting mechanisms and a reverser locking mechanism, wherein a roller accommodating cavity is formed between each roller limiting surface and the inner wall of the wrench head mounting hole in a matched manner, one roller is accommodated in each roller accommodating cavity, the axial direction of the roller is the same as that of the mounting shaft part, and the roller axial limiting mechanisms are positioned at the axial two ends of the roller accommodating cavities and limit the rollers in the roller accommodating cavities; the distance between the roller limiting surface and the inner wall of the wrench mounting hole changes along the circumferential direction of the wrench mounting hole, so that the roller can prevent the roller limiting surface from rotating relative to the inner wall of the wrench mounting hole, namely the distance is at least smaller than the diameter of the roller and is also larger than the diameter of the roller, a rotation stress prevention position is formed when the distance is smaller than the diameter of the roller, and a rotatable vacancy is formed when the distance is smaller than the diameter of the roller; the commutator is installed in a locking way through a commutator locking mechanism, so that the commutator can move circumferentially relative to the wrench head but cannot move axially, the commutator comprises a reversing push disk and a roller push part connected to the bottom of the reversing push disk, the reversing push disk is sleeved on the mounting shaft part through a central through hole, the roller push part comprises a plurality of roller push claw parts which are arranged along the circumferential direction and form cylindrical axial overhang, the roller push claw parts extend into the roller accommodating cavity, roller contact parts which are contacted with the rollers are formed on two side surfaces of the roller push claw parts in the circumferential direction, the rollers are pushed to roll through the contact of the roller contact parts, and the rollers can be pushed to roll in two directions through the exchange contact pushing of the two roller contact parts; the commutator locking mechanism comprises at least one pair of magnetic steels which are arranged oppositely in the same polarity, one of the magnetic steels is arranged on the commutator, the other magnetic steel is arranged on the wrench head, at least one of the commutator and the wrench head is made of magnetic material, the commutator is limited by the magnetic material, the roller pushes the claw part to enable the roller to be positioned at a stress position which prevents the limiting surface of the roller from rotating relative to the inner wall of the wrench head mounting hole, and the wrench head is driven to work by the handle; the method is characterized in that: the magnetic lock reversing wrench further comprises a baffle sleeved in the installation shaft part through a central through hole, the baffle is located on the top surface of the reversing pushing disc and is axially limited through a clamp spring clamped in the installation shaft part, the diameter of the baffle is larger than that of the reversing pushing disc, the diameter of the baffle is equivalent to that of the wrench installation hole and is matched with the wrench installation hole in a movable mode, the top end of the wrench is supported through matching of the baffle and the wall of the wrench installation hole, and shaking of the wrench is reduced.

As the supplement and improvement to the technical proposal, the utility model also comprises the following technical characteristics.

The end surfaces of the two ends of the baffle are not perpendicular to the axial lead of the baffle, so that the central part provided with the central through hole and the outer edge part are not in the same plane, and the reversing push disc can be pressed axially by the belleville spring.

The roller pushing piece further comprises a connecting plate portion, the pushing claw portions and the connecting plate portion are integrally formed and are arranged along the connecting plate portion in a circumferential mode, an installation groove is formed in the bottom of the reversing pushing disc and is correspondingly matched with the connecting plate portion, the connecting plate portion is fixedly embedded and installed in the installation groove, and the connecting plate portion is sleeved on the installation shaft portion through a central through hole.

The pushing claw part is integrally formed on the connecting plate part by punching and bending a plate material.

The top of the connecting plate part is formed with at least one positioning bulge through stamping, the mounting groove is provided with a positioning groove corresponding to the positioning bulge, and the positioning bulge is fixed in the positioning groove to limit and fix the roller pushing piece.

The distance between the two sides of the roller limiting surface and the inner wall of the wrench mounting hole is smaller than the diameter of the roller, the distance between the middle of the roller limiting surface and the inner wall of the wrench mounting hole is larger than the diameter of the roller, so that the roller limiting surface can be prevented from rotating relative to the inner wall of the wrench mounting hole when the roller is positioned on the two sides of the roller limiting surface, the roller limiting surface can rotate relative to the inner wall of the wrench mounting hole when the roller is positioned on the middle of the roller limiting surface, and the roller is pushed to roll towards the two sides of the roller limiting surface through the two roller contact parts, so that bidirectional reversing work is formed.

The middle part of the roller limiting surface is provided with an empty slot for accommodating the roller, the roller is positioned in a rotatable empty position in the empty slot, and through the arrangement of the empty slot, the two sides of the roller limiting surface can be closer to the inner wall of the wrench mounting hole, so that the rolling distance from the rotatable empty position to the rotation stress prevention position of the roller is reduced, and the efficiency is improved.

The outer peripheral surface of the middle section of the installation shaft part is circumferentially provided with a plurality of roller limiting surfaces, each roller limiting surface corresponds to one roller pushing claw part, the reversing pushing disk belt rotates around the installation shaft part in a reciprocating mode during reversing pushing, the roller pushing claw parts rotate from one roller containing cavity to the other containing cavity, the rollers are pushed to roll and convert between rotation resisting stress positions on two sides of the roller limiting surfaces, and bidirectional reversing work is achieved.

The installation axial region of spanner is the step shaft that both ends diameter is less than the interlude, set up the magnet steel mounting groove on the installation axial region on the shaft shoulder terminal surface and be used for the installation the magnet steel, the magnet steel mounting groove is located two between the spacing face link of roller, the magnet steel mounting groove position of switching-over promotion dish bottom corresponds with roller promotion claw portion, makes roller promotion claw portion rotatory to another roller holding chamber in-process from a roller holding chamber, and two magnet steels are relative at the intermediate position, and through homopolar repulsion each other, the magnet steel that makes on the switching-over promotion dish crosses the magnet steel on the installation axial region, realizes light switching-over.

The bottom of the reversing thrust disc is used as an upper end limiting support surface of the roller axial limiting mechanism; the roller axial limiting mechanism further comprises a limiting check ring positioned at the lower end of the roller containing cavity, and the limiting check ring is axially limited by a shaft shoulder of the installation shaft part and a clamp spring clamped in the installation shaft part.

The wrench head axial limiting mechanism comprises an outer stop ring groove arranged on the peripheral surface of the limiting stop ring, an inner stop ring groove arranged on the inner wall of the wrench head mounting hole and stop rings clamped in the outer stop ring groove and the inner stop ring groove simultaneously.

The reversing wrench also comprises a workpiece anti-disengaging mechanism, the workpiece anti-disengaging mechanism comprises a guide post, a steel ball and a spring, the wrench head is provided with an axial center hole, the center hole is a stepped hole and comprises a large-diameter spring accommodating cavity section and a small-diameter guide hole section, a radial steel ball through hole communicated with the center hole guide section is arranged on the wrench head part of the wrench head, the diameter of the steel ball through hole is smaller than that of the steel ball, the guide post is a stepped shaft and comprises a large-diameter head section and a small-diameter guide shaft section, the guide shaft section is provided with a stepped groove, the guide post is arranged in the center hole of the wrench head in a penetrating way, the steel ball is accommodated in the stepped groove and protrudes out to the outer peripheral surface of the wrench head part through the steel ball through hole, the spring is sleeved on the guide shaft section and accommodated in the spring accommodating cavity section of the center hole, and is limited by the axial end surface of the center hole and, the guide post is axially propped through the elastic force of the spring, so that the steel ball is propped on the bottom surface of the groove with the higher stepped shaft to enable the steel ball to protrude out of the outer peripheral surface of the wrench head through the steel ball through hole, when the wrench head is connected with a workpiece, the workpiece is inwards propped against the steel ball, the steel ball rolls the stepped groove to enable the guide post to axially move, the steel ball enters the lower groove bottom of the stepped groove, the head of the guide post is propped against the spring to enable the spring to generate elastic force, and the restoring force of the steel ball propped by the guide.

The utility model discloses following beneficial effect can be reached: 1. the utility model discloses an it is spacing with the spacing face cooperation circumference of roller on roller and the wrench mounting hole pore wall, the wrench to utilize, realizes spacing co-rotation between wrench and the handle and breaks away from the idle running, utilizes the commutator to promote the position transform realization bidirectional operation of roller for the spacing face of roller, utilizes the magnetism that homopolar repulsion mutually to inhale formula commutator locking mechanism to realize the commutator locking. 2. The utility model discloses an increase the baffle that the diameter is greater than switching-over driving disk at the top of commutator, form the support to the spanner top through the pore wall cooperation of baffle and spanner mounting hole, can reduce the switching-over drive power, improve the stability of spanner during operation, reducing wear, extension life.

Drawings

Fig. 1 is a schematic top view of the present invention.

Fig. 2 is a schematic view of the structure of the present invention.

FIG. 3 is a schematic cross-sectional view taken at A-A in FIG. 1.

FIG. 4 is a schematic cross-sectional view at C-C of FIG. 1.

Fig. 5 is a schematic cross-sectional view at B-B in fig. 2.

FIG. 6 is a schematic view of the wrench head.

Fig. 7 is a schematic structural view of the commutator.

Fig. 8 is a schematic structural view of the baffle.

Fig. 9 is a schematic cross-sectional view taken at D-D in fig. 8.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-9, the utility model relates to a shake-proof magnetic lock reversing wrench, which comprises a handle 1, a wrench head 2 and a reversing mechanism, wherein the head of the handle is provided with a wrench head mounting hole for accommodating the wrench head, the wrench head 1 comprises a wrench head part 21 and a mounting shaft part 22, and the mounting shaft part is arranged in the wrench head mounting hole in a penetrating manner and is axially limited by a wrench head axial limiting mechanism; the outer peripheral surface of the mounting shaft part is provided with 6 roller limiting surfaces 221, and the roller limiting surfaces 221 and the mounting shaft part can be parallel in the axial direction or form an acute included angle; the reversing mechanism comprises a reverser 3, rollers 11, roller axial limiting mechanisms and a reverser locking mechanism, wherein a roller accommodating cavity is formed between each roller limiting surface and the inner wall of a wrench head mounting hole in a matching way, the wrench head mounting hole is in the shape of a cylindrical hole or a conical hole matched with the roller limiting surface, a roller is accommodated in each roller accommodating cavity, the axial direction of the roller is in the same direction as the axial direction of the mounting shaft part, and the roller axial limiting mechanisms are positioned at the axial two ends of the roller accommodating cavities and limit the roller in the roller accommodating cavities; the distance between the roller limiting surface and the inner wall of the wrench mounting hole changes along the circumferential direction of the wrench mounting hole, so that the roller can prevent the roller limiting surface from rotating relative to the inner wall of the wrench mounting hole, namely the distance is at least smaller than the diameter of the roller and larger than the diameter of the roller, when the distance is smaller than the diameter of the roller, the roller is a force-bearing position for preventing rotation, and when the distance is smaller than the diameter of the roller, the roller is a rotatable vacancy; the commutator is installed in a locking way through a commutator locking mechanism, so that the commutator can move circumferentially relative to the wrench head but cannot move axially, the commutator comprises a reversing push disk 31 and a roller push part 32 connected to the bottom of the reversing push disk, the reversing push disk is sleeved on the installation shaft part through a central through hole, the roller push part comprises a plurality of roller push claw parts which are arranged along the circumferential direction and form cylindrical axial overhang, the roller push claw parts extend into a roller accommodating cavity, roller contact parts which are contacted with the rollers are formed on two side surfaces of the roller push claw parts in the circumferential direction, the rollers are pushed to roll through the contact of the roller contact parts, and the rollers can be pushed to roll in two directions through the exchange contact pushing of the two roller contact parts; the commutator locking mechanism comprises 3 pairs of magnetic steels 5 which are oppositely arranged in the same polarity, one of the magnetic steels is arranged on the commutator, the other one is arranged on the wrench head, the commutator and the wrench head are both made of magnetic materials, the commutator is limited by the magnetic materials, the roller pushes the claw part to enable the roller to be positioned at a stress position which prevents the roller limiting surface from rotating relative to the inner wall of the wrench head mounting hole, and the wrench head is driven by the handle to work; preferably, the magnetic lock switching-over spanner still includes one through setting up the baffle 4 of central through-hole suit in the installation axial region, and the baffle is located the switching-over and promotes set top surface and spacing through clamping in 7 axial of the jump ring of installation axial region, and the baffle diameter is greater than the diameter of switching-over and promotes the dish, and the baffle diameter is equivalent and mobilizable formula cooperation with spanner mounting hole diameter, forms the support to the spanner top through the cooperation of baffle and spanner mounting hole pore wall, reduces rocking of spanner.

Preferably, the end surfaces of the two ends of the baffle are not perpendicular to the axial line of the baffle, so that the central part provided with the central through hole and the outer edge part are not in the same plane, and the reversing thrust disc can be axially pressed and acted like a disc spring.

Preferably, the roller pushing part further comprises a connecting plate part, the pushing claw parts and the connecting plate part are integrally formed and are arranged along the circumference of the connecting plate part, a mounting groove is formed at the bottom of the reversing pushing disc and is correspondingly matched with the connecting plate part, the connecting plate part is fixedly embedded and mounted in the mounting groove, and the connecting plate part is sleeved on the mounting shaft part through a central through hole.

Preferably, the pushing claw portion is integrally formed to the connecting plate portion by press-bending a plate material.

Preferably, the top of the connecting plate part is formed with 3 positioning bulges through stamping, the mounting groove is provided with positioning grooves corresponding to the positioning bulges, and the positioning bulges are fixed in the positioning grooves to limit and fix the roller pushing part.

Preferably, the distance between the two sides of the roller limiting surface and the inner wall of the wrench mounting hole is smaller than the diameter of the roller, the distance between the middle of the roller limiting surface and the inner wall of the wrench mounting hole is larger than the diameter of the roller, so that the roller limiting surface can be prevented from rotating relative to the inner wall of the wrench mounting hole when the roller is positioned on the two sides of the roller limiting surface, the roller limiting surface can rotate relative to the inner wall of the wrench mounting hole when the roller is positioned in the middle of the roller limiting surface, and the roller is pushed to roll towards the two sides of the roller limiting surface through the two roller contact parts, so.

Preferably, the middle part of the roller limiting surface is provided with an empty slot 222 for accommodating the roller, the roller is in a rotatable empty position when in the empty slot, and through the arrangement of the empty slot, two sides of the roller limiting surface can be closer to the inner wall of the wrench head mounting hole, so that the rolling distance from the rotatable empty position to the position for preventing the rotation stress of the roller is reduced, and the efficiency is improved.

Preferably, a plurality of roller limiting surfaces are formed on the outer peripheral surface of the middle section of the mounting shaft part along the circumferential direction, each roller limiting surface corresponds to one roller pushing claw part, the reversing pushing disk belt rotates around the mounting shaft part in a reciprocating mode during reversing pushing, the roller pushing claw parts rotate from one roller containing cavity to the other containing cavity, the rollers are pushed to roll and convert between rotation resisting stress positions on two sides of the roller limiting surfaces, and bidirectional reversing work is achieved.

Preferably, the installation axial region of spanner is the step shaft that both ends diameter is less than the interlude, it is used for installing the magnet steel to set up the magnet steel mounting groove on the installation axial region on the shaft shoulder terminal surface, the magnet steel mounting groove is located between the spacing face link of two rollers, the magnet steel mounting groove position and the roller of switching-over promotion dish bottom promote the claw part and correspond, make the roller promote the claw part from a roller holding chamber rotatory to another roller holding chamber in-process, two magnet steels are relative at the intermediate position, repel each other through the homopolar, the magnet steel on the installation axial region is crossed to the magnet steel that makes on the switching-over promotion dish, realize.

Preferably, the bottom of the reversing thrust disc is used as an upper end limiting support surface of the roller axial limiting mechanism; the roller axial limiting mechanism further comprises a limiting check ring 6 positioned at the lower end of the roller containing cavity, and the limiting check ring is axially limited by a shaft shoulder of the installation shaft part and a clamp spring clamped in the installation shaft part.

Preferably, the axial limiting mechanism of the wrench head comprises an outer stop ring groove arranged on the peripheral surface of the limiting stop ring, an inner stop ring groove arranged on the inner wall of the wrench head mounting hole, and a stop ring clamped in the outer stop ring groove and the inner stop ring groove simultaneously.

Preferably, the reversing wrench further comprises a workpiece anti-disengaging mechanism, the workpiece anti-disengaging mechanism comprises a guide post 8, a steel ball 9 and a spring 10, the wrench head is provided with an axial center hole which is a stepped hole and comprises a large-diameter spring accommodating cavity section and a small-diameter guide hole section, a radial steel ball through hole communicated with the center hole guide section is arranged on the wrench head part of the wrench head, the diameter of the steel ball through hole is smaller than that of the steel ball, the guide post is a stepped shaft and comprises a large-diameter head section and a small-diameter guide shaft section, the guide shaft section is provided with a stepped groove, the guide post is arranged in the center hole of the wrench head in a penetrating manner, the steel ball is accommodated in the stepped groove and protrudes out to the outer peripheral surface of the wrench head part through the steel ball through hole, the spring is sleeved on the guide shaft section and accommodated in the spring accommodating cavity section of the center hole, the axial end surface of the center hole and the two ends, the steel ball is propped against the bottom surface of the groove with the higher stepped shaft, so that the steel ball protrudes out of the outer peripheral surface of the wrench head through the steel ball through hole, when the wrench head is connected with a workpiece, the workpiece is inwards propped against the steel ball, the steel ball rolls the stepped groove to enable the guide post to axially move, the steel ball enters the bottom of the groove with the lower stepped groove, the head of the guide post is propped against the spring to enable the spring to generate elasticity, and restoring force for the steel ball to prop up when the wrench head is separated from.

Claims

1. A shake-proof magnetic lock reversing wrench comprises a handle, a wrench head and a reversing mechanism, wherein the head of the handle is provided with a wrench head mounting hole for accommodating the wrench head, the wrench head comprises a wrench head part and a mounting shaft part, and the mounting shaft part is arranged in the wrench head mounting hole in a penetrating manner and is axially limited through a wrench head axial limiting mechanism; the peripheral surface of the mounting shaft part is provided with at least one roller limiting surface; the reversing mechanism comprises a reverser, rollers, roller axial limiting mechanisms and a reverser locking mechanism, wherein a roller accommodating cavity is formed between each roller limiting surface and the inner wall of the wrench head mounting hole in a matched manner, one roller is accommodated in each roller accommodating cavity, and the roller axial limiting mechanisms are positioned at two axial ends of the roller accommodating cavities and limit the rollers in the roller accommodating cavities; the distance between the roller limiting surface and the inner wall of the wrench mounting hole changes along the circumferential direction of the wrench mounting hole, so that the roller can prevent the roller limiting surface from rotating relative to the inner wall of the wrench mounting hole, namely the distance is at least smaller than the diameter of the roller and is also larger than the diameter of the roller; the commutator is installed in a locking mode through a commutator locking mechanism, so that the commutator can move circumferentially relative to the wrench head but cannot move axially, the commutator comprises a reversing push disk and a roller pushing part connected to the bottom of the reversing push disk, the reversing push disk is sleeved on the mounting shaft part through a central through hole, the roller pushing part comprises a plurality of cylindrical roller pushing claw parts which are arranged along the circumferential direction and axially overhung, the roller pushing claw parts extend into the roller accommodating cavity, roller contact parts which are in contact with the rollers are formed on two side surfaces of the roller pushing claw parts in the circumferential direction, and the rollers are pushed to roll through the contact of the roller contact parts; the commutator locking mechanism comprises at least one pair of magnetic steels which are arranged oppositely in the same pole, wherein one magnetic steel is arranged on the commutator, the other magnetic steel is arranged on the wrench head, and at least one of the commutator and the wrench head is made of magnetic material;

the method is characterized in that: the magnetic lock reversing wrench further comprises a baffle sleeved on the installation shaft part through a central through hole, the baffle is located on the top surface of the reversing pushing disc and is axially limited through a clamp spring clamped on the installation shaft part, the diameter of the baffle is larger than that of the reversing pushing disc, and the diameter of the baffle is equivalent to that of the wrench head installation hole and is movably matched with the wrench head installation hole.

2. The anti-sloshing magnetic lock reversing wrench as claimed in claim 1, wherein: the end surfaces of the two ends of the baffle are not perpendicular to the axial lead of the baffle, so that the central part provided with the central through hole and the outer edge part are not in the same plane.

3. The anti-sloshing magnetic lock reversing wrench as claimed in claim 1 or 2, wherein: the roller pushing piece further comprises a connecting plate portion, the pushing claw portions and the connecting plate portion are integrally formed, the pushing claw portions are arranged along the connecting plate portion in a circumferential mode, mounting grooves are formed in the bottom of the reversing pushing disc and are correspondingly matched with the connecting plate portion, the connecting plate portion is fixedly embedded and mounted in the mounting grooves, and the connecting plate portion is sleeved on the mounting shaft portion through a central through hole.

4. The anti-sloshing magnetic lock reversing wrench as claimed in claim 3, wherein: the pushing claw part is integrally formed on the connecting plate part by punching and bending a plate material.

5. The anti-sloshing magnetic lock reversing wrench as claimed in claim 4, wherein: the top of connecting plate portion have at least one location arch through stamping forming, mounting groove on be provided with the constant head tank that corresponds with the location arch, the location arch is fixed in the constant head tank.

6. The anti-sloshing magnetic lock reversing wrench of claim 1, 4 or 5, wherein: the installation axial region of spanner head is for the step shaft that both ends diameter is less than the interlude, set up the magnet steel mounting groove on the epaxial shoulder terminal surface of installation axial region and be used for the installation magnet steel, the magnet steel mounting groove is located two between the spacing face link of roller, the magnet steel mounting groove position of switching-over propelling movement dish bottom corresponds with roller promotion claw portion.

7. The anti-sloshing magnetic lock reversing wrench as claimed in claim 6, wherein: the distance between the two sides of the roller limiting surface and the inner wall of the wrench mounting hole is smaller than the diameter of the roller, and the distance between the middle of the roller limiting surface and the inner wall of the wrench mounting hole is larger than the diameter of the roller.

8. The anti-sloshing magnetic lock reversing wrench as claimed in claim 7, wherein: and the middle part of the roller limiting surface is provided with a vacancy groove for accommodating the roller.

9. The anti-sloshing magnetic lock reversing wrench as claimed in claim 8, wherein: the installation axial region of spanner is the step shaft that both ends diameter is less than the interlude, set up the magnet steel mounting groove on the shaft shoulder terminal surface on the installation axial region and be used for the installation the magnet steel, the magnet steel mounting groove is located two between the spacing face link of roller, the magnet steel mounting groove position of switching-over propelling movement dish bottom corresponds with roller promotion claw portion.

10. The anti-sloshing magnetic lock reversing wrench of claim 9, wherein: the reversing wrench also comprises a workpiece anti-falling mechanism, the workpiece anti-falling mechanism comprises a guide post, a steel ball and a spring, the wrench head is provided with an axial center hole, the central hole is a stepped hole and comprises a large-diameter spring accommodating cavity section and a small-diameter guide hole section, a head part of the wrench head is provided with a radial steel ball through hole communicated with the central hole guide section, the diameter of the steel ball through hole is smaller than that of the steel ball, the guide post is a stepped shaft and comprises a large-diameter head section and a small-diameter guide shaft section, the guide shaft section is provided with a stepped groove, the guide post is arranged in the central hole of the wrench head in a penetrating way, the steel ball is accommodated in the stepped groove and protrudes to the outer peripheral surface of the wrench head part through the steel ball through hole, the spring is sleeved on the guide shaft section and accommodated in the spring accommodating cavity section of the central hole, and is limited by the axial end face of the central hole and two ends of a shaft shoulder of the guide post.