CN114043214B

CN114043214B - Locking device

Info

Publication number: CN114043214B
Application number: CN202111415429.3A
Authority: CN
Inventors: 刘代东
Original assignee: Inspur Shandong Computer Technology Co Ltd
Current assignee: Inspur Electronic Information Industry Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2023-02-28
Anticipated expiration: 2041-11-25
Also published as: CN114043214A

Abstract

The invention discloses a locking device which comprises an outer shell, wherein a first wheel shaft assembly and a plurality of second wheel shaft assemblies are arranged in the outer shell, any second wheel shaft assembly is in transmission connection with the first wheel shaft assembly through a transmission mechanism, and a screwdriver bit used for fastening or loosening a locking connecting piece is arranged on any second wheel shaft assembly; by driving the first wheel shaft assembly, the first wheel shaft assembly drives the screwdriver heads on all the second wheel shaft assemblies to rotate in the same direction, so that a plurality of locking connecting pieces are locked and connected. The locking device can lock a plurality of screws at one time, for example, when the heat radiator in the server is locked, four screws can be locked at one time, so that 75% of operation time can be saved, and the operation efficiency can be greatly improved.

Description

Locking device

Technical Field

The invention relates to the technical field of servers, in particular to a locking device.

Background

When the server and the computer PC manually assemble and produce the heat sink, the electric screw driver is required to lock 4 screws on the heat sink, however, since the employee only locks one screw at a time by using the electric screw driver, the operation efficiency is greatly affected.

Therefore, how to avoid the problem that the working efficiency is affected because the staff only can lock one screw at a time when using the electric screwdriver is a technical problem to be solved by the technical staff in the field at present.

Disclosure of Invention

The invention aims to provide a locking device which can lock 4 screws at a time, thereby greatly improving the working efficiency.

In order to achieve the purpose, the invention provides a locking device which comprises an outer shell, wherein a first wheel shaft assembly and a plurality of second wheel shaft assemblies are arranged in the outer shell, any one of the second wheel shaft assemblies is in transmission connection with the first wheel shaft assembly through a transmission mechanism, and a screwdriver head used for fastening or loosening a locking connecting piece is arranged on any one of the second wheel shaft assemblies; by driving the first wheel shaft assembly, the first wheel shaft assembly drives the screwdriver heads on all the second wheel shaft assemblies to rotate in the same direction, so that locking connection of a plurality of locking connecting pieces is realized.

Optionally, the transmission mechanism is in particular a chain transmission mechanism; the first wheel shaft assembly is provided with a first chain wheel and a second chain wheel, the two second wheel shaft assemblies positioned on one side of the first wheel shaft assembly are respectively provided with a third chain wheel, and the two second wheel shaft assemblies positioned on the other side of the first wheel shaft assembly are respectively provided with a fourth chain wheel; the first chain wheel and the two third chain wheels, and the second chain wheel and the two fourth chain wheels are connected through a transmission chain.

Optionally, the transmission mechanism is specifically a gear transmission mechanism; any one of the second wheel shaft assemblies is provided with a second gear, the first wheel shaft assembly is provided with a first gear which is correspondingly meshed with the second gear, and all the second wheel shaft assemblies are driven to rotate in the same direction through the rotation of the first wheel shaft assembly.

Optionally, any of the second wheel axle assemblies comprises an upper central shaft, a first meshing block, a second meshing block, a lower central shaft, an adjusting ring and an adjusting ring, the first meshing block is meshed with the second meshing block, the first meshing block is connected with the upper central shaft, and the second meshing block is connected with the lower central shaft;

the adjusting ring is arranged in the adjusting ring and is in threaded connection with the adjusting ring;

a thimble assembly is arranged above the adjusting ring, an elastic piece is arranged between the thimble assembly and the second meshing block, and the elastic piece can provide elastic force for the second meshing block to move along the direction close to the first meshing block;

the adjusting ring and the adjusting ring rotate relatively to adjust the elastic force of the elastic piece on the second meshing block to realize torsion adjustment, and when the torsion of the lower central shaft is larger than the torsion provided by the elastic piece to the second meshing block, the second meshing block is disengaged from the first meshing block and begins to slip.

Optionally, the batch head is locked to the lower central shaft by a fixing component.

Optionally, the top of going up the center pin is equipped with interior hexagonal heavy groove, the adjustable ring is equipped with the locking screw, still include with the locking screw thread fit connection's of locking screw.

Optionally, the screwdriver further comprises a plurality of sleeves arranged outside the screwdriver head and used for sleeving the heads of the locking and attaching connectors.

Optionally, any of the sleeves is removably attached to the bottom of the outer housing.

Optionally, the outer housing comprises a box body and an upper panel connected to the top of the box body in a covering manner.

Optionally, a first through hole for the first wheel axle assembly to pass through and a first sinking groove coaxial with the first through hole are formed in the center of the upper panel, a second sinking groove is formed in the center of the inner side of the box body, two first bearings are arranged on the first wheel axle assembly, and the two first bearings are respectively arranged in the first sinking groove and the second sinking groove;

the upper panel is further provided with a second through hole for the second wheel shaft assembly to pass through and a third sinking groove coaxial with the second through hole, the box body is further provided with a third through hole for the second wheel shaft assembly to pass through and a fourth sinking groove coaxial with the third through hole, the second wheel shaft assembly is provided with two second bearings, and the two second bearings on the second wheel shaft assembly are respectively arranged in the third sinking groove and the fourth sinking groove;

the third through hole is specifically a threaded through hole, and one end of the sleeve is provided with an external thread connected with the threaded through hole.

Compared with the background art, the locking device provided by the embodiment of the invention comprises an outer shell, wherein a first wheel shaft assembly and a plurality of second wheel shaft assemblies are arranged in the outer shell, any one of the second wheel shaft assemblies is in transmission connection with the first wheel shaft assembly through a transmission mechanism, and a screwdriver bit used for fastening or loosening the locking connecting piece is arranged on any one of the second wheel shaft assemblies. Therefore, by driving the first wheel shaft assembly, the first wheel shaft assembly drives the screwdriver heads on all the second wheel shaft assemblies to rotate in the same direction, so that the locking connection of the locking connecting pieces is realized. For example, when the heat sink in the server is locked, the four second wheel shaft assemblies can be driven to rotate in the same direction by rotating one first wheel shaft assembly, so that four screws can be locked at one time. Compared with the traditional operation mode that only one screw can be locked at a time, the locking device provided by the embodiment of the invention can lock a plurality of screws at a time, for example, four screws at a time when locking a radiator in a server, so that the operation time can be saved by 75%, and the operation efficiency can be greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of an internal structure of a locking device according to an embodiment of the present invention;

FIG. 2 is a schematic view of an internal structure of the locking device at another angle according to the embodiment of the present invention;

FIG. 3 is a schematic external view of a locking device according to an embodiment of the present invention;

FIG. 4 is a schematic view of an external structure of the locking device at another angle according to the embodiment of the present invention;

FIG. 5 is a schematic view of a locking device according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of the upper panel;

FIG. 7 is a schematic view of another angle of the upper panel;

FIG. 8 is a schematic structural view of the cartridge;

FIG. 9 is a schematic view of the structure of the case at another angle;

FIG. 10 is a schematic structural view of a bushing;

FIG. 11 is a schematic view of the drive chain;

FIG. 12 is a schematic view of a first axle assembly;

FIG. 13 is a cross-sectional view of the first axle assembly;

FIG. 14 is a schematic view of a second axle assembly;

FIG. 15 is a schematic view of another angle of the second axle assembly;

FIG. 16 is a schematic illustration of the second wheel axle assembly of FIG. 14 with the single sprocket, bearing sleeves, adjustment ring and locking ring removed;

FIG. 17 is a schematic view of the second axle assembly of FIG. 16 with the engagement block outer race and lower end cap removed;

FIG. 18 is an overall cross-sectional schematic view of the second axle assembly;

FIG. 19 is a schematic view of the single sprocket of FIG. 18;

FIG. 20 is a structural view of the upper central shaft of FIG. 18;

FIG. 21 is a schematic structural view of the upper endcap of FIG. 18;

FIG. 22 is a schematic view showing the connection structure of the upper center shaft, the upper end cap and the first engaging block in FIG. 18;

FIG. 23 is a schematic view of the structure of FIG. 22 from another angle;

FIG. 24 is a schematic view of the lower central shaft of FIG. 18;

FIG. 25 is a schematic structural view of the lower endcap of FIG. 18;

FIG. 26 is a schematic view showing a coupling structure of the lower center shaft, the second meshing block and the outer race of the meshing block in FIG. 18;

FIG. 27 is a schematic view of the adjustment ring of FIG. 18;

FIG. 28 is a schematic view of the adjustment ring of FIG. 18;

FIG. 29 is a schematic view of the retaining ring of FIG. 18;

FIG. 30 is a schematic view of the retainer ring of FIG. 18;

FIG. 31 is a schematic view of the locking ring of FIG. 18;

fig. 32 is a schematic structural view of the fixing ring in fig. 18.

Wherein:

1-first axle assembly, 101-first sprocket, 102-second sprocket, 103-first bearing, 104-central shaft, 105-parallel key;

2-second wheel axle component, 201-third chain wheel, 202-fourth chain wheel, 203-second bearing, 204-upper central shaft, 205-upper end cover, 206-first meshing block, 207-second meshing block, 208-meshing block outer ring, 209-elastic component, 210-spring washer, 211-single chain wheel, 212-lower central shaft, 213-third bearing, 214-bearing sleeve, 215-lower end cover, 216-thimble component, 217-adjusting ring, 218-adjusting ring, 2181-locking screw hole, 219-positioning ring, 220-retaining ring, 221-fixing ring and 222-locking ring;

3-a transmission chain;

4-outer shell, 401-upper panel, 4011-first through hole, 4012-second through hole, 4013-first sinking groove, 4014-third sinking groove, 402-box, 4021-second sinking groove, 4022-third through hole, 4023-fourth sinking groove, and 4024-torsion adjusting hole;

5-sleeve, 501-external thread;

6-batch head;

7-an electric screwdriver;

8-radiator, 801-locking screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

It should be noted that the following directional terms such as "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.

The locking device provided by the embodiment of the invention can be used for locking a radiator 8 in a server, and comprises an outer shell 4, wherein a first wheel axle assembly 1 and a plurality of second wheel axle assemblies 2 are arranged in the outer shell 4, any one of the second wheel axle assemblies 2 is in transmission connection with the first wheel axle assembly 1 through a transmission mechanism, and a screwdriver bit 6 used for fastening or loosening the locking connecting piece is arranged on any one of the second wheel axle assemblies 2.

Thus, by driving the first wheel axle assembly 1, the first wheel axle assembly 1 drives the bits 6 on all the second wheel axle assemblies 2 to rotate in the same direction, so as to realize the locking connection of the locking connecting pieces.

Of course, according to actual needs, the locking connector may be a locking screw 801, and the mode of driving the first axle assembly 1 may be an electric screwdriver 7, that is, the electric screwdriver 7 drives the first axle assembly 1, so that a plurality of locking screws 801 may be locked at one time, thereby implementing the fixing and mounting of the heat sink 8 in the server.

For example, when the heat sink 8 in the server is locked, by rotating one first wheel axle assembly 1, four second wheel axle assemblies 2 can be driven to rotate in the same direction, so that four locking screws 801 can be locked at one time. Compared with the conventional operation mode that only one locking screw 801 can be locked at one time, the locking device provided by the embodiment of the invention can lock a plurality of locking screws 801 at one time, for example, four locking screws 801 can be locked at one time when the heat sink 8 in the server is locked, so that 75% of operation time can be saved, and the operation efficiency can be greatly improved.

As an example, the transmission mechanism for connecting the first axle assembly 1 and the second axle assembly 2 may be embodied as a chain transmission mechanism.

Specifically, the first wheel-axle assembly 1 includes a central shaft 104, and a first sprocket 101 and a second sprocket 102 disposed on the central shaft 104, the first sprocket 101 and the second sprocket 102 are fixed to the central shaft 104 by a parallel key 105, and the second sprocket 102 is disposed coaxially below the first sprocket 101; the two second wheel shaft assemblies 2 positioned on one side of the first wheel shaft assembly 1 are respectively provided with a third chain wheel 201, the first chain wheel 101 and the two third chain wheels 201 are arranged in a coplanar manner, the two second wheel shaft assemblies 2 positioned on the other side of the first wheel shaft assembly 1 are respectively provided with a fourth chain wheel 202, and the second chain wheel 102 and the two fourth chain wheels 202 are arranged in a coplanar manner; the first chain wheel 101 is connected with two third chain wheels 201 through a transmission chain 3, and the second chain wheel 102 is connected with two fourth chain wheels 202 through the transmission chain 3.

In the transmission process, the transmission chain 3 is arranged in an isosceles triangle structure, and the transmission function between the first wheel axle assembly 1 and the plurality of second wheel axle assemblies 2 is realized through the meshing of the transmission chain 3 and the gear teeth on the chain wheel.

It should be noted that, the heat sink 8 in the server generally requires four screws for locking and fixing, and the four screws are respectively located at four corners of the rectangle with the preset size, so that the four second wheel axle assemblies 2 are arranged at four corners of the rectangle with the preset size, and the first wheel axle assembly 1 is arranged at a central position of the rectangle with the preset size. In this way, the four second wheel axle assemblies 2 can be driven by the rotation of the first wheel axle assembly 1 located at the center of the rectangle and the characteristics of chain transmission, so that the fixed connection between the four locking screws 801 on the heat sink 8 and the server housing is realized.

As another example, the transmission mechanism for connecting the first wheel and axle assembly 1 and the second wheel and axle assembly 2 may be embodied as a gear transmission mechanism.

Specifically, a second gear is arranged on any one of the second wheel axle assemblies 2, a first gear is arranged on the first wheel axle assembly 1, and the first gear is correspondingly engaged with the second gear, wherein one or more first gears are arranged on the first wheel axle assembly 1, when a plurality of first gears are arranged, the plurality of first gears are correspondingly engaged with the plurality of second gears one by one, and the plurality of first gears on the first wheel axle assembly 1 are distributed along the axial direction of the first wheel axle assembly 1.

In this way, the rotation of the first wheel axle assembly 1 drives all the second wheel axle assemblies 2 to rotate in the same direction, so that the function of simultaneously tightening or loosening the four locking screws 801 can be realized.

In view of the advantages of chain drives, a chain drive type transmission is preferred. The following describes the locking device using a chain drive as a transmission mechanism.

To facilitate adjustment of the torque of the batch head 6, any of the second hub assemblies 2 described above includes an upper central shaft 204, a first engagement block 206, a second engagement block 207, a lower central shaft 212, an adjustment ring 217, and an adjustment ring 218. The first meshing block 206 and the second meshing block 207 both adopt a structure with a trapezoid step, the first meshing block 206 and the second meshing block 207 are respectively connected with the upper central shaft 204 and the lower central shaft 212, the adjusting ring 217 is arranged inside the adjusting ring 218 and is in threaded connection with the adjusting ring 218, the ejector pin assembly 216 is arranged above the adjusting ring 217, the elastic element 209 is arranged between the ejector pin assembly 216 and the meshing block outer ring 208, the elastic element 209 can provide elastic force for the second meshing block 207 to move along the direction close to the first meshing block 206, the elastic element 209 is specifically a compression spring, and a spring washer 210 is arranged between the spring and the ejector pin assembly 216.

That is, the second engaging block 207 is pressed against the first engaging block 206 by a spring structure with an adjustable amount of compression, and the lower center shaft 212 is connected to the batch head 6 at its end; in a normal state, the two engaging blocks are engaged with each other, and when the torsion of the batch head 6 (or the lower center shaft 212) is larger than the torsion provided to the second engaging block 207 by the spring force, the second engaging block 207 is disengaged and starts to slip, and the amount of compression of the spring to the second engaging block 207 can be adjusted by the adjusting ring 218, thereby achieving the torsion adjusting function.

Specifically, any one of the second wheel and axle assemblies 2 further includes an upper end cover 205, a single-chain wheel 211 and a lower end cover 215, a bearing housing 214 is disposed between the single-chain wheel 211 and the lower end cover 215, a third bearing 213 is disposed between the bearing housing 214 and the lower center shaft 212, a positioning ring 219 is disposed between the lower end cover 215 and an adjusting ring 218, and a retaining ring 220 is disposed below the positioning ring 219.

The single-chain wheel 211 is arranged outside the second wheel shaft assembly 2 and is used for being meshed with the transmission chain 3, the first meshing block 206 is fixedly connected with the single-chain wheel 211 through an upper central shaft 204 and an upper end cover 205, the single-chain wheel 211 is fixedly connected with the upper end cover 205 through screws in a locking manner, the first meshing block 206 is arranged below the upper end cover 205, mounting holes are formed in the centers of the upper end cover 205 and the first meshing block 206, the upper central shaft 204 penetrates through the mounting holes of the upper end cover 205 and the first meshing block 206, the upper central shaft 204 is fixed with the upper end cover 205 and the first meshing block 206 in the horizontal direction, and the upper central shaft can move relatively in the vertical direction, so when the single-chain wheel 211 rotates, the first meshing block 206 rotates; the single chain wheel 211 is fixedly connected with the lower end cover 215; the second engaging block 207 is fixed to the lower central shaft 212 in the horizontal direction, and the second engaging block 207 is movable relative to the lower central shaft 212 in the vertical direction; the lower central shaft 212 is provided with a meshing block outer ring 208 for accommodating the first meshing block and the second meshing block 207, and the first meshing block and the second meshing block 207 are meshed in the meshing block outer ring 208; the outer cylindrical surface of regulation circle 217 is full thread to with the mutual gomphosis of the internal thread of adjustable ring 218, regulation circle 217 is equipped with spacing hole, lower extreme cover 215 has the extension that can stretch into this spacing hole, regulation circle 217 at the horizontal direction with lower extreme cover 215 reciprocal anchorage, in order to realize that regulation circle 217 can follow the rotation when lower extreme cover 215 rotates, regulation circle 217 can remove lower extreme cover 215 relatively in vertical direction.

Thus, when the adjusting ring 218 is rotated, the adjusting ring 217 moves up and down inside, the spring is compressed or relaxed by the pin assembly 216 to change the pressure of the spring on the second engaging block 207, the second engaging block 207 is fixed to the lower center shaft 212 in the horizontal direction and can move relatively in the vertical direction, when the torsion of the lower center shaft 212 is greater than the torsion provided by the spring force to the first engaging block 206 and the second engaging block 207, the second engaging block 207 is disengaged from the first engaging block 206 and starts to jump up and down and slip, that is, the second engaging block 207 can slip under different torsion values by adjusting the compression amount of the spring, so that the torque of the batch head 6 fixed on the lower center shaft 212 can be adjusted.

More specifically, the top end of the upper central shaft 204 is provided with an inner hexagonal sunken groove, the lower portion of the adjusting ring 218 is provided with a locking screw hole 2181, a locking screw is connected in the locking screw hole 2181, when the spring compression amount needs to be adjusted, one inner hexagonal wrench is used for loosening the locking screw in the locking screw hole 2181 of the adjusting ring 218 and clamping the adjusting ring 218, and the other inner hexagonal wrench is used for inserting into the inner hexagonal sunken groove at the top end of the upper central shaft 204 and rotating, so that the upper central shaft 204 drives the adjusting ring 217 and the adjusting ring 218 to rotate relatively through the single chain wheel 211 and the lower end cover 215, and the adjusting ring 217 moves up and down under the driving of a thread structure, so as to adjust the spring compression amount, namely, the torque force of the adjusting spring on the second meshing block 207.

Further, the batch head 6 is locked to the lower center shaft 212 by a fixing member. The fixing assembly includes a fixing ring 221 and a locking ring 222, and the fixing ring 221 is clamped inside the locking ring 222. The manner of fastening the batch head 6 and the lower central shaft 212 is not particularly limited.

In order to optimize the above embodiment, the locking device further comprises a plurality of sleeves 5, and the sleeves 5 are disposed outside the bits 6 and are configured to be sleeved on the heads of the locking connectors. Wherein four sleeves 5 are detachably connected to the bottom of the outer housing 4.

Because the screw of the radiator 8 is provided with the spring, when the screw is locked, a worker needs to forcibly push the screwdriver head 6 of the electric screwdriver 7 against the screw to lock the screw, so that the screwdriver head 6 of the electric screwdriver 7 often rotates too fast, is forcefully violent or has an angle deviation to jump off a screw groove, and once the worker cannot hold the screw, the screwdriver head 6 can hit a mainboard, so that the mainboard is damaged and scrapped, and the raw material cost is increased. In the embodiment, the sleeve 5 is arranged, on one hand, when the heat sink 8 is locked, the sleeve 5 of the device always sleeves the locking screw 801 of the heat sink 8, so that the bit 6 can be fixed to prevent the bit 6 from rotating too fast to jump off the mainboard, which causes damage and scrapping of the mainboard, and further, material loss can be reduced, and cost input can be reduced; on the other hand, the four sleeves 5 of the device can quickly position the locking screws 801 of the radiator 8, and the locking process does not need to worry about the trip of the screwdriver bit 6, so that the working efficiency can be improved.

Further, the outer case 4 includes a case 402 and an upper panel 401 coupled to the top of the case 402 in a covering manner. A first through hole 4011 for the first wheel shaft assembly 1 to pass through and a first sinking groove 4013 coaxial with the first through hole 4011 are arranged in the center of the upper panel 401, a second sinking groove 4021 is arranged in the center of the inner side of the box body 402, two first bearings 103 are arranged on the first wheel shaft assembly 1, and the two first bearings 103 are respectively arranged in the first sinking groove 4013 and the second sinking groove 4021; meanwhile, four positions of the upper panel 401 close to the corners are provided with a second through hole 4012 through which the second wheel axle assembly 2 passes and a third sinking groove 4014 coaxial with the second through hole 4012, four positions of the box body 402 close to the corners are provided with a third through hole 4022 through which the second wheel axle assembly 2 passes and a fourth sinking groove 4023 coaxial with the third through hole 4022, the second wheel axle assembly 2 is provided with two second bearings 203, and the two second bearings 203 on any second wheel axle assembly 2 are respectively arranged in the third sinking groove 4014 and the fourth sinking groove 4023.

It should be noted that, in order to facilitate the connection of the sleeve 5, the third through hole 4022 is specifically a threaded through hole, and one end of the sleeve 5 is provided with an external thread 501 connected with the threaded through hole.

In addition, two symmetrical torsion adjusting holes 4024 are formed in the lower portion of the side surface of the box 402, and an adjusting tool passes through the torsion adjusting holes 4024 when the torsion of the batch head 6 is adjusted.

The size of the locking device is customized according to the distance between the locking screws 801 of the heat sink 8. During operation, the radiator 8 is placed on the locking position of the radiator 8 on the main board, the four sleeves 5 at the bottom of the locking device are respectively aligned to the four locking screws 801 of the radiator 8 and are pressed down with proper force, the sleeves 5 can enable the locking device to quickly position the locking screws 801 of the radiator 8, and meanwhile, because the diameter of an inner hole of each sleeve 5 is larger than that of the cap head of each locking screw 801 of the radiator 8, the cap head of each locking screw 801 is always positioned in the corresponding sleeve 5 in the locking process, and the risk that the screwdriver head 6 jumps off the cap of the corresponding radiator to impact the main board can be reduced or even avoided; further, an inner hexagonal screwdriver bit of an electric screwdriver 7 is inserted into an inner hexagonal sunk groove at the top end of the first wheel shaft assembly 1 in the center of the top of the device, the electric screwdriver 7 is pressed to start a switch, the four second wheel shaft assemblies 2 in the locking device synchronously rotate with the first wheel shaft assembly 1 through chain transmission, at the moment, the screwdriver bits 6 in the four sleeves 5 start to perform locking operation, and the locking device stops when the situation that the four screwdriver bits 6 internally slip is sensed, so that locking can be completed.

In addition, the torsion adjusting structure is arranged in the second wheel shaft component 2 corresponding to each batch head 6, the batch head 6 torsion adjustment can be carried out according to the locking process requirement, and the method for realizing the batch head 6 torsion adjustment by the device comprises the following steps: one socket wrench is used to loosen the locking screw of the adjusting ring 218 and lock the adjusting ring 218, the other socket wrench is used to lock the upper central shaft 204 in the single sprocket 211 and to rotate the compression amount of the adjusting spring, and a torque meter is used to detect and adjust the torque force value which meets the process requirement.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The locking device provided by the invention is described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are set forth only to help understand the principles of the present invention and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The locking device is characterized by comprising an outer shell (4), wherein a first wheel shaft assembly (1) and a plurality of second wheel shaft assemblies (2) are arranged in the outer shell (4), any one of the second wheel shaft assemblies (2) is in transmission connection with the first wheel shaft assembly (1) through a transmission mechanism, and a screwdriver head (6) used for fastening or loosening a locking connecting piece is arranged on any one of the second wheel shaft assemblies (2); by driving the first wheel shaft assembly (1), the first wheel shaft assembly (1) drives the screwdriver heads (6) on all the second wheel shaft assemblies (2) to rotate in the same direction, so that a plurality of locking and attaching connecting pieces are locked and attached;

the screwdriver head is characterized by also comprising a plurality of sleeves (5) which are arranged outside the screwdriver head (6) and used for sleeving the heads of the locking connecting pieces;

any one of the second wheel axle assemblies (2) comprises an upper central shaft (204), a first engagement block (206), a second engagement block (207), a lower central shaft (212), an adjustment ring (217) and an adjustment ring (218), the first engagement block (206) is engaged with the second engagement block (207), the first engagement block (206) is connected with the upper central shaft (204), and the second engagement block (207) is connected with the lower central shaft (212);

the adjusting ring (217) is arranged inside the adjusting ring (218) and is in threaded connection with the adjusting ring (218);

a thimble assembly (216) is arranged above the adjusting ring (217), an elastic piece (209) is arranged between the thimble assembly (216) and the second meshing block (207), and the elastic piece (209) can provide an elastic force for the second meshing block (207) to move along a direction close to the first meshing block (206);

the torsion adjustment is realized by the relative rotation of the adjusting ring (217) and the adjusting ring (218) to adjust the elastic force of the elastic part (209) on the second engaging block (207), and when the torsion of the lower central shaft (212) is larger than the torsion provided by the elastic part (209) to the second engaging block (207), the second engaging block (207) is disengaged from the first engaging block (206) and begins to slip.

2. The locking device according to claim 1, characterized in that the transmission mechanism is in particular a chain transmission mechanism; a first chain wheel (101) and a second chain wheel (102) are arranged on the first wheel shaft assembly (1), third chain wheels (201) are arranged on the two second wheel shaft assemblies (2) on one side of the first wheel shaft assembly (1), and fourth chain wheels (202) are arranged on the two second wheel shaft assemblies (2) on the other side of the first wheel shaft assembly (1); the first chain wheel (101) and the two third chain wheels (201), and the second chain wheel (102) and the two fourth chain wheels (202) are connected through a transmission chain (3).

3. An attachment device according to claim 1, wherein the transmission mechanism is embodied as a gear transmission mechanism; a second gear is arranged on any one second wheel shaft assembly (2), a first gear correspondingly meshed with the second gear is arranged on the first wheel shaft assembly (1), and all the second wheel shaft assemblies (2) are driven to rotate in the same direction through the rotation of the first wheel shaft assembly (1).

4. The locking device according to claim 1, characterized in that the batch head (6) is locked to the lower central shaft (212) by a fixing assembly.

5. The locking device as claimed in claim 1, wherein the top of the upper central shaft (204) is provided with a hexagonal recess, the adjusting ring (218) is provided with a locking screw hole (2181), and further comprises a locking screw in threaded engagement with the locking screw hole (2181).

6. A locking attachment as claimed in claim 1, characterised in that any one of said sleeves (5) is removably connected to the bottom of said outer housing (4).

7. The locking device according to claim 1, wherein the outer housing (4) comprises a box (402) and an upper panel (401) covering the top of the box (402).

8. The locking attachment device according to claim 7, wherein the center of the upper panel (401) is provided with a first through hole (4011) for the first wheel axle assembly (1) to pass through and a first sinking groove (4013) coaxial with the first through hole (4011), the center of the inner side of the box body (402) is provided with a second sinking groove (4021), the first wheel axle assembly (1) is provided with two first bearings (103), and the two first bearings (103) are respectively arranged in the first sinking groove (4013) and the second sinking groove (4021);

the upper panel (401) is further provided with a second through hole (4012) for the second wheel axle assembly (2) to pass through and a third sinking groove (4014) coaxial with the second through hole (4012), the box body (402) is further provided with a third through hole (4022) for the second wheel axle assembly (2) to pass through and a fourth sinking groove (4023) coaxial with the third through hole (4022), the second wheel axle assembly (2) is provided with two second bearings (203), and the two second bearings (203) on the second wheel axle assembly (2) are respectively arranged in the third sinking groove (4014) and the fourth sinking groove (4023);

the third through hole (4022) is specifically a threaded through hole, and one end of the sleeve (5) is provided with an external thread (501) connected with the threaded through hole.