CN210704657U

CN210704657U - Device for quickly disassembling and assembling fastener

Info

Publication number: CN210704657U
Application number: CN201921571864.3U
Authority: CN
Inventors: 詹晟
Original assignee: Taier Heavy Industry Co Ltd
Current assignee: Taier Heavy Industry Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-06-09
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a device for quickly disassembling and assembling fasteners, which comprises a rotor, a sleeve, a gland, a clockwork spring and a steel wire rope; the rotating body is a stepped shaft, square blind holes are arranged at the left end and the right end of the rotating body, an annular groove is arranged in the middle of the large-diameter part of the rotating body, and a through square groove is radially arranged at the solid part of which the outer part is the annular groove; the sleeve is sleeved outside the rotating body, and a through hole is formed in the position of the sleeve corresponding to the annular groove of the rotating body; the spiral power spring is arranged in the square groove of the rotating body, one end of the steel wire rope is connected with the outer end of the spiral power spring, and the other free end of the steel wire rope penetrates out of the through hole of the rotating body through the annular groove; the gland bush is in the left end of the rotator small diameter part, and the left end surface of the gland bush is tightly close to the right end surface of the rotator large diameter part and is tightly pressed at the right end of the sleeve through a screw. The device can rapidly disassemble and assemble fasteners such as screws, bolts and the like.

Description

Device for quickly disassembling and assembling fastener

Technical Field

The utility model belongs to mechanical production assembly field especially relates to the device of high-efficient quick assembly disassembly fastener under the operating mode in narrow and small assembly operation space.

Background

In the mechanical assembly production process, the screws, bolts and other fasteners are indispensable procedures, usually, the screws or bolts need to be pre-tightened or disassembled during assembly, at present, most elbow hexagonal wrenches are adopted for disassembling and assembling narrow assembly spaces, and hands are required to be turned for many times.

Disclosure of Invention

The utility model aims to solve the problem that a device of dismouting fastener is provided, the device can be dismantled, assemble fastener such as screw, bolt fast. Meanwhile, the device is suitable for flexible operation in narrow space and can be used for disassembling and assembling long screws and bolts. In a word, this device uses convenient, reliable, and pretension, dismantlement are fast, and consuming time is short, has improved work efficiency greatly.

The utility model discloses a device for quickly disassembling and assembling fasteners, which comprises a rotating body, a sleeve, a gland, a clockwork spring and a steel wire rope; the rotating body is a stepped shaft, square blind holes are arranged at the left end and the right end of the rotating body, an annular groove is arranged in the middle of the large-diameter part of the rotating body, and a through square groove is radially arranged at the solid part of which the outer part is the annular groove; the sleeve is sleeved outside the rotating body, and a through hole is formed in the position of the sleeve corresponding to the annular groove of the rotating body; the spiral power spring is arranged in the square groove of the rotating body, one end of the steel wire rope is connected with the outer end of the spiral power spring, and the other free end of the steel wire rope penetrates out of the through hole of the rotating body through the annular groove; the gland bush is in the left end of the rotator small diameter part, and the left end surface of the gland bush is tightly close to the right end surface of the rotator large diameter part and is tightly pressed at the right end of the sleeve through a screw.

Furthermore, the left end of the sleeve is provided with an inner spigot which is contacted with an outer spigot at the left end of the rotating body.

Furthermore, the inner end of the clockwork spring is clamped in the square groove of the rotating body, the rest of the clockwork spring is wound in the annular groove for a plurality of circles, and the outer end of the clockwork spring is connected with the steel wire rope.

Furthermore, the left end of the small-diameter part of the rotating body is provided with two radial through holes which are perpendicular to each other.

Further, the device also comprises a stress application rod which is inserted in the radial through hole.

Further, short pins are arranged at two ends of the stress application rod.

Furthermore, the device also comprises a left batch head and a right batch head which are respectively connected with the square blind holes at the left end and the right end of the rotating body.

Furthermore, the rotating body is connected with the sleeve through a ratchet wheel.

The utility model discloses a theory of operation is: the sleeve is held, the rotating body rotates relative to the sleeve by dragging the steel wire rope, so that the screwdriver heads at two ends of the rotating body are driven to rotate, and the fastening piece is detached or screwed down. Specifically, the method comprises the following steps: when the device works, the screwdriver head required by the device is inserted into the universal square holes at the end parts of the two sides of the rotating body and is screwed, the head of the integrated wrench is inserted into the hole of the screw which needs to be screwed under stress, the sleeve is held, the steel wire rope is pulled, the rotating body starts to rotate, the screw is driven to rotate rightwards and screw in, and the pre-tightening state is achieved. If the screw needs to be screwed, the force applying rod is inserted to apply larger torque, thereby achieving the purpose of screwing. When the screw is unscrewed, the device is turned around, the sleeve is held, the steel wire rope is pulled, and the rotating body rotates anticlockwise in the front view direction of the workpiece to drive the screw to unscrew left. When the screw is not screwed, such as rusted, the force applying rod is inserted to apply a larger torque, so that the purpose of unscrewing and disassembling the screw is achieved.

The utility model discloses a pull the batch head rotation that wire rope drove both ends and can realize loosening or screwing of fastener, need not to use the spanner and need not to fall the hand, consequently can dismantle fasteners such as assembly screw, bolt fast. Meanwhile, only the steel wire rope exposed outside needs to be pulled, so that the steel wire rope is not limited by assembly space, the steel wire rope can be conveniently used in narrow assembly space, and in addition, if the length of the steel wire rope is longer, the rotating body can rotate for multiple circles, so that the steel wire rope is particularly suitable for pre-tightening and disassembling of long screws and bolts after loosening. Therefore, the utility model discloses use convenient, reliable, assembly, dismantlement are fast, weak point consuming time has improved work efficiency greatly.

Drawings

FIG. 1 is a three-dimensional schematic view of the apparatus of the present invention;

fig. 2 is an axial cross-sectional view of the inventive device;

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 6 is a schematic diagram of the batch head of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

Example 1

As can be seen from fig. 1, 2 and 3, the device for quickly dismounting and mounting a fastener of the present invention includes a rotator 1, a sleeve 2, a gland 3, a spiral spring 4 and a wire rope 5; the rotating body 1 is a stepped shaft, square blind holes are arranged at the left end and the right end of the stepped shaft, an annular groove is arranged in the middle of a large-diameter part of the stepped shaft, and a through square groove is radially arranged at the solid part of which the outer part is the annular groove; the sleeve 2 is sleeved outside the rotating body 1, and a through hole 8 is arranged at the position corresponding to the annular groove of the rotating body 1; the clockwork spring 4 is arranged in the square groove of the rotor 1, one end of the steel wire rope 5 is connected with the outer end of the clockwork spring 4, and the other free end penetrates out of the through hole 8 of the rotor 1 through the annular groove; the gland 3 is sleeved at the left end of the small diameter part of the rotor 1, the left end surface of the gland is tightly leaned on the right end surface of the large diameter part of the rotor 1, and the gland is tightly pressed at the right end of the sleeve 2 through a screw 7.

The utility model discloses in: the rotating body can freely rotate relative to the sleeve by applying force to the steel wire rope; the spring can realize the automatic retraction function of the steel wire rope; the rotating body does not move axially; the square blind holes on the two end faces of the rotating body can realize magnetic attraction and fixation of various specifications of screwdriver heads and realize the function of screwing or unscrewing the screw.

When the device works, the screwdriver bit required by the device is inserted into the square blind holes universal at the end parts of the two sides of the rotating body. When screwing, inserting the hexagon head of the integrated screwdriver head into the inner hexagon hole of the screw to be screwed under stress, holding the sleeve, pulling the steel wire rope, enabling the rotor to start rotating, and driving the screw to be screwed in rightwards to achieve a pre-tightening state; if the screw needs to be screwed further, the force applying rod is inserted to apply larger torque, so as to achieve the purpose of screwing. When the screw is unscrewed, the device is turned around, the sleeve is held, the steel wire rope is pulled, and the rotating body starts to rotate to drive the screw to unscrew left. If the screw is rusted and the like, the force applying rod is inserted to apply larger torque, so that the purposes of unscrewing and disassembling the screw are achieved.

Example 2

As can be seen from FIGS. 1 and 2, the utility model discloses quick assembly disassembly fastener's device: the left end of the sleeve 2 is provided with an inner spigot which is contacted with an outer spigot at the left end of the rotating body 1.

Because the tang can realize the axial positioning between sleeve 2 and the rotor 1 to prevent that device from appearing rotor 1 in the course of the work and for sleeve 2 axial displacement, guarantee that rotor 1 can only rotate, thereby carry out dismouting work better.

Example 3

As can be seen from fig. 1, 2 and 4, the device for quickly disassembling and assembling the fastener of the present invention: the inner end of the clockwork spring 4 is clamped in the square groove of the rotor 1, the rest of the clockwork spring is wound in the annular groove for a plurality of circles, and the outer end of the clockwork spring is connected with the steel wire rope 5.

The clockwork spring 4 has high elastic modulus, can realize automatic retraction of the steel wire rope 5 after being pulled, and ensures that the steel wire rope has slight resistance when being pulled and has more hand feeling when being disassembled and assembled; the steel wire rope is a direct force application part, and when the steel wire rope needs to be screwed, the steel wire rope is pulled, and when the steel wire rope needs to be unscrewed, the device is turned around to pull the steel wire rope.

The winding direction of the spring 4 in the square groove and the annular groove determines the rotation direction of the rotor 1, i.e. the rotor can only rotate in one direction in this case, so that two different situations of disassembly and assembly must be realized by turning the device around respectively. As shown in the direction of the spring assembly of the clockwork spring shown in FIG. 4, the rotary body of the present invention can only rotate counterclockwise (when viewed from the right side to the left side of the device), and when the bits are assembled in the square hole on the left side, the screw can be disassembled; when the square hole on the right side after turning around is filled with the batch head, the screw can be screwed down.

Example 4

As can be seen from fig. 1, 2 and 5, the device for quickly disassembling and assembling the fastener of the present invention is a preferred mode: the left end of the small diameter part of the rotating body 1 is provided with two radial through holes 9, and the two radial through holes 9 are vertical to each other.

As can be seen from figure 1, the device for quickly disassembling and assembling the fastener of the utility model also comprises a stress application rod 6, and the stress application rod 6 is inserted in the radial through hole 9. Because there are two mutually perpendicular radial through holes 9, the forcing rod 6 can be easily inserted into any one of the radial through holes 9.

The force application rod 6 in the novel rotary body is used for assisting force application and is inserted into a radial through hole 9 of the rotary body 1 when needed. The lever principle is utilized, and if rusted screws need to be disassembled, the unscrewing torque is doubled; or when the screw needs to be screwed, the screwing torque is multiplied. The stress application rod has the function of realizing large-moment tightening or large-moment loosening, thereby realizing the functions of stress application tightening and stress application disassembling.

Preferably, the two ends of the stress application rod 6 are provided with the short pins, so that the axial motion of the stress application rod 6 in a limiting mode can be realized, the stress application rod can be rotated to stretch back and forth, and the stress application rod is suitable for the working condition of surplus single-side space.

Example 5

From fig. 1, fig. 2, fig. 6, the utility model discloses quick assembly disassembly fastener's device is still including controlling two and criticizes head 10, criticizes head 10 respectively with rotor 1 about the quad slit at both ends be connected.

The bit 10 can be any of a variety of different types of bits, such as a hexagon socket, a cross, a line bit, etc. The screwdriver bit has certain magnetism, can be adsorbed in the square hole of the rotating body and directly contacts with the screw, the bolt or the nut, so that the screwing and unscrewing functions of the screw, the bolt or the nut and other fastening pieces are realized.

Example 6

As a further improvement of the utility model, the rotator 1 and the sleeve 2 are connected by a ratchet wheel. The ratchet wheel connection mode can realize the one-way pulling movement of the steel wire rope, and can shorten the length of the steel wire rope, thereby being more convenient to use.

The working process of the device is as follows: when the disassembly operation is carried out, the screwdriver head 10 corresponding to the head of the screw to be disassembled is inserted into the square blind hole at one end of the rotating body 1, the sleeve 2 is held, the stressing rod 6 is inserted into the radial through hole of the rotating body 1, and the counterclockwise moment is applied to the stressing rod 6; when the screw is loosened, the steel wire rope is pulled for about 60 cm, and then the common screw can be disassembled (namely, the rotating body rotates for about 20 circles, which is equal to the length of screwing out 20 screw pitches); when the assembling operation is carried out, the device is reversed, the screw to be screwed in is magnetically attracted into the screwdriver head, then the screwdriver head is inserted into the square blind hole at the other end of the rotating body, the sleeve 2 is held, the steel wire rope 5 is pulled to a screw pre-tightening state, the steel wire rope automatically retracts, the stressing rod 6 is inserted at the moment, clockwise moment is applied to the stressing rod 6, and the screw is enabled to reach a fastening state.

The utility model discloses can assemble fast and dismantle fasteners such as screw, bolt to especially adapt to the repetitive operation in the narrow and small space, it is convenient, reliable to use, and assembly, dismantlement are fast, weak point consuming time has improved work efficiency greatly.

Claims

1. A device for quickly disassembling and assembling fasteners is characterized in that: the device comprises a rotating body (1), a sleeve (2), a gland (3), a clockwork spring (4) and a steel wire rope (5); the rotating body (1) is a stepped shaft, square blind holes are arranged at the left end and the right end of the stepped shaft, an annular groove is arranged in the middle of the large-diameter part of the stepped shaft, and a through square groove is radially arranged at the solid part of which the outer part is the annular groove; the sleeve (2) is sleeved outside the rotating body (1), and a through hole (8) is arranged at the position corresponding to the annular groove of the rotating body (1); the clockwork spring (4) is arranged in the square groove of the rotating body (1), one end of the steel wire rope (5) is connected with the outer end of the clockwork spring (4), and the other free end of the steel wire rope penetrates out of the through hole (8) of the rotating body (1) through the annular groove; the gland (3) is sleeved at the left end of the small-diameter part of the rotating body (1), the left end surface of the gland is tightly leaned on the right end surface of the large-diameter part of the rotating body (1), and the gland is tightly pressed at the right end of the sleeve (2) through a screw (7).

2. The apparatus of claim 1, wherein: the left end of the sleeve (2) is provided with an inner spigot which is contacted with an outer spigot at the left end of the rotating body (1).

3. The apparatus of claim 1, wherein: the inner end of the clockwork spring (4) is clamped in the square groove of the rotating body (1), the rest of the clockwork spring is wound in the annular groove for a plurality of circles, and the outer end of the clockwork spring is connected with the steel wire rope (5).

4. The apparatus of claim 1, wherein: the left end of the small-diameter part of the rotating body (1) is provided with two radial through holes (9), and the two holes are perpendicular to each other.

5. The apparatus of claim 4, wherein: the device also comprises a stress application rod (6), and the stress application rod (6) is inserted in the radial through hole (9).

6. The apparatus of claim 5, wherein: short pins are arranged at two ends of the stress application rod (6).

7. The apparatus of claim 1, wherein: the device also comprises a left screwdriver head and a right screwdriver head (10), wherein the screwdriver heads (10) are respectively connected with square blind holes at the left end and the right end of the rotating body (1).

8. The apparatus of claim 1, wherein: the rotating body (1) and the sleeve (2) are connected by a ratchet wheel.