CN212578489U

CN212578489U - Multifunctional insulating screwdriver

Info

Publication number: CN212578489U
Application number: CN202020641852.XU
Authority: CN
Inventors: 李季峰; 李海龙
Original assignee: State Grid Corp of China SGCC; Jingmen Power Supply Co of State Grid Hubei Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Jingmen Power Supply Co of State Grid Hubei Electric Power Co Ltd
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2021-02-23
Anticipated expiration: 2030-04-25

Abstract

The utility model discloses a multi-functional insulating screwdriver, slewing bearing is including gyration portion and support, and gyration portion movable mounting is inboard at the support, is provided with spacing boss on this gyration portion, interior central siphon fixed mounting is in the spacing boss department on the gyration portion, it is fixed by the end cap in the interior intraductal back of axle that magnet was arranged in, interior central siphon insulation sheath cover is put in end cap and interior outside of tubes, and outer central siphon fixed mounting has seted up spacing jack in the support lower part at the central point of gyration portion, has seted up the through-hole coaxial with this spacing jack on outer central siphon, outer outside at slewing bearing and outer spool is put to outer spool insulation sheath cover, the outside of interior central siphon and slewing bearing's support is equallyd divide and is do not provided with mated concave station, the utility model has the advantages that: the multifunctional insulating screwdriver can effectively insulate and isolate the working position, realize live working, improve the power supply reliability of a distribution line and effectively enlarge the application range of the multifunctional insulating screwdriver.

Description

Multifunctional insulating screwdriver

Technical Field

The utility model relates to a hardware and tools's technical field, more specifically say so and relate to the technical field of screwdriver.

Background

A screwdriver is a common tool used to turn a screw into place and has a head, usually a thin wedge-shaped head, which is inserted into a slot or recess in the head of the screw to turn the screw. The insulating screwdriver is used for a screwdriver under the condition of electrification or possible electrification, in order to achieve a good insulating effect, the common insulating screwdriver at present usually covers the insulating layer on the screwdriver except the screwdriver head, however, the insulating screwdriver with the structure has the following three defects: firstly, when an operator uses the insulated screwdriver to screw the screw, the head of the screwdriver head and the screwed screw head are always exposed outside, the head and the screwed screw head can mistakenly touch the parts, the risk of electric shock exists, particularly, when the operator operates on a small operation surface, the operator must perform power failure operation to prevent electric shock or interphase short circuit, and the reliability of power supply is reduced; secondly, when an operator twists and turns the screw by using the insulating screwdriver, the verticality of the screwdriver is not easy to master, and the screwdriver cannot be always coaxial with the twisted screw, so that the head of the screwdriver head is easy to be separated from the slot or notch of the screw head during twisting, and the twisting efficiency is reduced; thirdly, the screwdriver head of the insulated screwdriver cannot be disassembled and replaced, and a single screwdriver only can be suitable for screws of specific types.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a have fine insulating effect for solving above-mentioned not enough, can realize live working with the insulating isolation of work position, improve distribution lines power supply reliability, can improve work efficiency, possess simultaneously and change the multi-functional insulating screwdriver that criticizes the head and use.

The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:

a multifunctional insulating screwdriver comprises an end cap, an inner shaft tube, a magnet, an inner shaft tube insulating sheath, a slewing bearing, an outer shaft tube insulating sheath, a middle shaft tube, a spring, an elastic insulating sleeve, an insulating cover and a screwdriver bit, wherein the slewing bearing comprises a slewing part and a supporting part, the slewing part is movably arranged on the inner side of the supporting part, a limit boss is arranged on the slewing part, the inner shaft tube is fixedly arranged at the limit boss on the slewing part, the magnet is fixed by the end cap after being arranged in the inner shaft tube, the inner shaft tube insulating sheath is sleeved at the outer sides of the end cap and the inner shaft tube, the outer shaft tube is fixedly arranged at the lower part of the supporting part, a limit jack is arranged at the central position of the slewing part, a through hole coaxial with the limit jack is arranged on the outer shaft tube, the outer shaft tube insulating sheath is sleeved at the outer sides of the slewing bearing and the outer shaft tube, the middle shaft tube penetrates through the through hole, a limiting part is arranged at the upper end of the middle shaft tube in the outer shaft tube, the insulating cover is fixedly installed at the lower end of the middle shaft tube, the spring and the elastic insulating sleeve are respectively sleeved on the middle shaft tube and are located between the outer shaft tube and the insulating cover, the spring is located on the inner side of the elastic insulating sleeve, the upper end of the insulating cover is provided with the through hole communicated with the middle shaft tube, the lower end of the insulating cover is in an open shape and is conical, the screwdriver head penetrates through the insulating cover, the middle shaft tube and the outer shaft tube, is inserted into a limiting insertion hole in the center of the rotation part through the upper end of the screwdriver head, and is adsorbed with magnet.

The slewing bearing further comprises balls and a retainer, the slewing part is an inner ring, the supporting part is an outer ring, the outer ring is located on the outer side of the inner ring, annular grooves are formed in the inner side wall of the outer ring and the outer side wall of the inner ring respectively, the balls are located between the outer ring and the inner ring and are movably clamped in the annular grooves of the outer ring and the inner ring, the retainer is located between the outer ring and the inner ring, positioning sleeves uniformly distributed along the circumferential direction are arranged on the retainer, and the balls are movably clamped in the positioning sleeves of the retainer respectively.

It is still including first countersunk screw first countersunk hole has been seted up to interior circle seted up first screw on the inner tube, the bottom of inner tube and the upper portion contact of inner circle, first countersunk screw wears to put in the first countersunk hole of inner circle to in the first screw of inner tube is put soon, be provided with first internal thread on the inside wall of inner tube, be provided with first external screw thread on the end cap, in the inner tube was arranged in to magnet, the bottom of magnet and the upper portion contact of inner circle, the end cap is put on the first internal thread of inner tube soon through its first external screw thread, and the end cap supports and leans on magnet.

The outer ring is provided with a first countersunk hole, the outer shaft tube is provided with a first screw hole, the upper part of the outer shaft tube is contacted with the bottom of the outer ring, and the first countersunk hole is penetrated in the first countersunk hole of the outer ring and is screwed in the first screw hole of the outer shaft tube.

The insulating cover is formed by combining an upper part and a lower part, and the upper part and the lower part of the insulating cover are connected by threads.

The central axis pipe is T type, and the spacing portion of central axis pipe is the upper limb of T type central axis pipe.

The lower end of the screwdriver head is in a straight shape, a cross shape, a rice shape, a square shape, a triangular shape, a hexagonal shape, a Y shape or a U shape.

The other end of the batch head is coated with a zirconium dioxide insulating coating.

The insulating cover is made of transparent polycarbonate material.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

1. when the multifunctional insulating screwdriver is used for assembling and disassembling screws, an operator holds the insulating sheath of the inner shaft tube by hand, covers the lower end opening part of the insulating sheath on the outer side of a screw head to be screwed, then presses downwards to enable the end cap, the inner shaft tube, the magnet, the slewing bearing, the outer shaft tube and the screwdriver bit to overcome the elasticity of the spring and the elastic insulating sleeve to move downwards, clamps the lower end part of the screwdriver bit in a slot or a notch of the screw head to be screwed, and screws the screws. Because the head of criticizing the head only can stretch out in the insulating boot under the condition of pushing down to when screwing up the screw, the insulating boot can be covered the screw head and put inside it, can effectually keep apart the work site insulation, realize live working, improve distribution lines power supply reliability.

2. The parts that can contact outside this multi-functional insulating screwdriver are all insulating material, consequently can realize live-wire operation, effectively avoid potential safety hazards such as electric shock, interphase short circuit.

3. This multi-functional insulating screwdriver is when needing big moment of torsion to dismantle the nut, operating personnel criticizes overhead sleeve at the hexagon, one hand utilizes insulating solid wrench fork to put in the concave station department in the central siphon outside, revolve to turning part and criticizing the head and twist, another hand utilizes another insulating solid wrench fork to put in the concave station department in the central siphon outside, support and fix a position outer central siphon and insulating boot, let the insulating boot cover the nut inside it, thereby showing the stability when having improved the operation, make criticize the head remain on same axis with the nut that needs to twist all the time, and then improved the efficiency of twisting of nut.

4. The screwdriver head is adsorbed on the magnet through the upper end of the screwdriver head, so that different types of screwdriver heads can be replaced according to needs, and the application range of the multifunctional insulating screwdriver is effectively expanded.

5. The insulation cover is formed by combining an upper part and a lower part, and the lower parts of the insulation covers with different openings are replaced according to the sizes of the outer diameters of different screws or nuts.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is an enlarged view of a portion of FIG. 1 at C;

fig. 5 is a cross-sectional view taken along line D-D of fig. 1.

Detailed Description

As shown in fig. 1, the multifunctional insulating screwdriver comprises a magnet 1, a slewing bearing, an outer shaft tube 2, a middle shaft tube 3, a spring 4, an insulating cover 5, a screwdriver bit 6, an inner shaft tube 18, an end cap 19, a first countersunk screw 17, a second countersunk screw 24, an outer shaft tube insulating sheath 27 and an inner shaft tube insulating sheath 34, wherein the end cap 19, the outer shaft tube 2, the middle shaft tube 3, the insulating cover 5 and an elastic insulating sleeve 28 are made of insulating materials, the slewing bearing comprises a slewing part and a bearing part, the slewing part is movably mounted on the inner side of the bearing part, and the slewing bearing has the following specific structure: as shown in fig. 2 and 5, the slewing bearing further includes balls 10 and a retainer 11, the slewing portion is an inner ring 12, the supporting portion is an outer ring 14, the outer ring 14 is located outside the inner ring 12, annular grooves 15 are respectively formed in the inner side wall of the outer ring 14 and the outer side wall of the inner ring 12, the balls 10 are located between the outer ring 14 and the inner ring 12 and are movably clamped in the annular grooves 15 of the outer ring 14 and the inner ring 12, the retainer 11 is located between the outer ring 14 and the inner ring 12, positioning sleeves 16 uniformly distributed along the circumferential direction are arranged on the retainer 11, and the balls 10 are respectively movably clamped in the positioning sleeves 16 of the retainer 11. The rotary part of the slewing bearing is provided with a limit boss 9, the inner shaft tube 18 is fixedly arranged at the limit boss 9 on the rotary part, the magnet 1 is arranged in the inner shaft tube 18 and then fixed by an end cap 19, the specific structure of the inner shaft tube 18, the specific connection relationship between the inner shaft tube 18 and the rotary part, and the position relationship between the magnet 1 and the inner shaft tube 18 and the end cap 19 are as follows: the inner ring 12 is provided with a first countersunk hole 20, the inner shaft tube 18 is provided with a first screw hole 21, the bottom of the inner shaft tube 18 contacts with the upper part of the inner ring 12, the first countersunk screw 17 penetrates through the first countersunk hole 20 of the inner ring 12 and is screwed into the first screw hole 21 of the inner shaft tube 18, the inner side wall of the inner shaft tube 18 is provided with a first internal thread 22, the end cap 19 is provided with a first external thread 23, the magnet 1 is arranged in the inner shaft tube 18, the bottom of the magnet 1 contacts with the limit boss 9 of the inner ring 12, the end cap 19 is screwed on the first internal thread 22 of the inner shaft tube 18 through the first external thread 23, and the end cap 19 abuts against the magnet 1. Outer central siphon 2 fixed mounting is in the support portion lower part, and outer central siphon 2 and the concrete connected relation of support portion are as follows: the outer ring 14 is provided with a second countersunk hole 25, the outer shaft tube 2 is provided with a second screw hole 26, the upper part of the outer shaft tube 2 is in contact with the bottom of the outer ring 14, and the second countersunk screw 24 is inserted into the second countersunk hole 25 of the outer ring 14 and screwed into the second screw hole 26 of the outer shaft tube 2. The outer tube insulating sheath 27 is tightly sleeved outside the outer ring 14, the balls 10, the retainer 11 and the outer tube 2, and the inner tube insulating sheath 34 is tightly sleeved outside the inner tube 18 and the end cap 19. As shown in fig. 3, a limiting jack 7 is provided at the center of the rotation portion, a through hole 8 coaxial with the limiting jack 7 is provided on the outer shaft tube 2, the middle shaft tube 3 is inserted into the through hole 8, a limiting portion is provided on the middle shaft tube 3 located in the outer shaft tube 2, the middle shaft tube 3 is T-shaped, and the limiting portion of the middle shaft tube 3 is an upper edge 33 of the T-shaped middle shaft tube 3. The insulating cover 5 is fixedly arranged at the lower part of the central shaft tube 3 and is fixedly arranged in the following way: as shown in fig. 4, an annular groove 29 is formed in the inner side wall of the lower portion of the middle shaft tube 3, a second internal thread 30 is formed in the inner wall of the annular groove 29 of the middle shaft tube 3, a connecting sleeve 31 is arranged on the upper portion of the insulating cover 5, a second external thread 32 is formed in the outer side wall of the connecting sleeve 31, the connecting sleeve 31 is located in the annular groove 29 of the middle shaft tube 3 and is screwed on the second internal thread 30 through the second external thread 32, the lower portion of the insulating cover 5 is tapered, and the insulating cover 5 is made of transparent polycarbonate material. The spring 4 is installed between the outer shaft tube 2 and the insulating cover 5, the elastic insulating sleeve 28 is a corrugated tube, the elastic insulating sleeve 28 is installed between the outer shaft tube 2 and the insulating cover 5, the spring 4 is sleeved outside the middle shaft tube 3, and the insulating elastic sleeve 28 is sleeved outside the spring 4. The screwdriver head 6 penetrates through the insulating cover 5, the central axis tube 3 and the outer axis tube 2 and is clamped in the limiting insertion hole 7 through the upper end of the screwdriver head, the cross section of the limiting insertion hole 7 is in a regular hexagon shape, and the upper end of the screwdriver head 6 is in a regular hexagon shape corresponding to the limiting insertion hole 7. The upper end of the screwdriver head 6 is adsorbed on the magnet 1, and the lower end of the screwdriver head 6 is in a straight shape, a cross shape, a rice shape, a square shape, a triangular shape, a hexagonal shape, a Y shape or a U shape. The rest parts of the batch head 6 except the lower end part are coated with zirconium dioxide insulating coatings. In order to conveniently screw the nut with large torque, the outer sides of the inner shaft tube and the supporting part of the slewing bearing are respectively provided with the paired concave platforms 35, and when the nut is used, the nut can be screwed by the aid of the force of the insulating solid wrench, so that the nut is easier and more convenient to work. In order to be able to adapt to the need for screwing screws or nuts of different sizes, the insulating cover 5 is configured in two upper and lower parts, which are connected by means of a thread 13.

Claims

1. Multi-functional insulating screwdriver, its characterized in that: the rotary support comprises a rotary portion and a supporting portion, the rotary portion is movably mounted on the inner side of the supporting portion, a limiting boss is arranged on the rotary portion, the inner shaft tube is fixedly mounted at the limiting boss on the rotary portion, the magnet is fixed by the end cap after being arranged in the inner shaft tube, the inner shaft tube is sleeved on the outer side of the end cap and the inner shaft tube, the outer shaft tube is fixedly mounted on the lower portion of the supporting portion, a limiting jack is arranged at the center of the rotary portion, a through hole coaxial with the limiting jack is formed in the outer shaft tube, the outer shaft tube is sleeved on the outer sides of the rotary support and the outer shaft tube, and paired concave tables are respectively arranged on the outer sides of the inner shaft tube and the supporting portion of the rotary support, the middle shaft tube penetrates through the through hole, a limiting part is arranged at the upper end of the middle shaft tube in the outer shaft tube, the insulating cover is fixedly installed at the lower end of the middle shaft tube, the spring and the elastic insulating sleeve are respectively sleeved on the middle shaft tube and are located between the outer shaft tube and the insulating cover, the spring is located on the inner side of the elastic insulating sleeve, the upper end of the insulating cover is provided with the through hole communicated with the middle shaft tube, the lower end of the insulating cover is in an open shape and is conical, the screwdriver head penetrates through the insulating cover, the middle shaft tube and the outer shaft tube, is inserted into a limiting insertion hole in the center of the rotation part through the upper end of the screwdriver head, and is adsorbed with magnet.

2. The multifunctional insulated screwdriver according to claim 1, wherein: the slewing bearing further comprises balls and a retainer, the slewing part is an inner ring, the supporting part is an outer ring, the outer ring is located on the outer side of the inner ring, annular grooves are formed in the inner side wall of the outer ring and the outer side wall of the inner ring respectively, the balls are located between the outer ring and the inner ring and are movably clamped in the annular grooves of the outer ring and the inner ring, the retainer is located between the outer ring and the inner ring, positioning sleeves uniformly distributed along the circumferential direction are arranged on the retainer, and the balls are movably clamped in the positioning sleeves of the retainer respectively.

3. The multifunctional insulated screwdriver according to claim 2, wherein: it is still including first countersunk screw first countersunk hole has been seted up to interior circle seted up first screw on the inner tube, the bottom of inner tube and the upper portion contact of inner circle, first countersunk screw wears to put in the first countersunk hole of inner circle to in the first screw of inner tube is put soon, be provided with first internal thread on the inside wall of inner tube, be provided with first external screw thread on the end cap, in the inner tube was arranged in to magnet, the bottom of magnet and the upper portion contact of inner circle, the end cap is put on the first internal thread of inner tube soon through its first external screw thread, and the end cap supports and leans on magnet.

4. The multifunctional insulated screwdriver according to claim 2, wherein: the outer ring is provided with a first countersunk hole, the outer shaft tube is provided with a first screw hole, the upper part of the outer shaft tube is contacted with the bottom of the outer ring, and the first countersunk hole is penetrated in the first countersunk hole of the outer ring and is screwed in the first screw hole of the outer shaft tube.

5. The multifunctional insulated screwdriver according to claim 1, 2, 3 or 4, characterized in that: the insulating cover is formed by combining an upper part and a lower part, and the upper part and the lower part of the insulating cover are connected by threads.

6. The multifunctional insulated screwdriver according to claim 1, 2, 3 or 4, characterized in that: the central axis pipe is T type, and the spacing portion of central axis pipe is the upper limb of T type central axis pipe.

7. The multifunctional insulated screwdriver according to claim 1, 2, 3 or 4, characterized in that: the lower end of the screwdriver head is in a straight shape, a cross shape, a rice shape, a square shape, a triangular shape, a hexagonal shape, a Y shape or a U shape.

8. The multifunctional insulated screwdriver according to claim 1, 2, 3 or 4, characterized in that: the other end of the batch head is coated with a zirconium dioxide insulating coating.

9. The multifunctional insulated screwdriver according to claim 1, 2, 3 or 4, characterized in that: the insulating cover is made of transparent polycarbonate material.