阅读说明：本技术 一种快锁防松紧固装置 (Locking fastener soon ) 是由 向树国 顾叶青 谢金祥 王超 于 2021-09-08 设计创作，主要内容包括：本发明公开了一种快锁防松紧固装置,涉及连接器设备领域,包括安装面板、螺母仓体和螺钉,所述螺钉的表面活动套接有国标弹垫,螺钉的内部活动连接有顶杆,螺钉的表面活动套接有旋钮,旋钮的表面活动套接有压簧。第一,能够在组件推入到位后快速锁定组件位置,防止组件弹出或位移,可提高组件拆装效率,降低劳动强度,可有效降低盲插液冷连接器泄漏概率,同时减少不必要的对插动作,提高相关盲插连接器的使用寿命；第二,采用特制松不脱落螺钉紧密固定组件,使组件和设备框架形成较高刚性体,并通过螺钉端面径向防旋措施,杜绝螺钉松动、脱落风险,提高设备整机抗振强度,为设备长期可靠运行提供保证。(The invention discloses a quick-locking anti-loose fastening device, which relates to the field of connector equipment and comprises an installation panel, a nut bin body and a screw, wherein a national standard elastic cushion is movably sleeved on the surface of the screw, an ejector rod is movably connected inside the screw, a knob is movably sleeved on the surface of the screw, and a pressure spring is movably sleeved on the surface of the knob. Firstly, the assembly can be quickly locked after being pushed in place, the assembly is prevented from popping up or displacing, the assembly disassembly and assembly efficiency can be improved, the labor intensity is reduced, the leakage probability of the blind-mate liquid-cooled connector can be effectively reduced, meanwhile, unnecessary plug-in actions are reduced, and the service life of the related blind-mate connector is prolonged; secondly, the special loose and non-falling screw is adopted to tightly fix the assembly, so that the assembly and the equipment frame form a higher rigid body, the radial anti-rotation measure of the end surface of the screw is adopted, the risk of loosening and falling of the screw is avoided, the vibration resistance strength of the whole equipment is improved, and the guarantee is provided for the long-term reliable operation of the equipment.)

1. A quick-locking anti-loosening fastening device comprises an installation panel (8), a nut bin body (20) and a screw (2), and is characterized in that a national standard spring cushion (7) is sleeved on the surface of the screw (2), an ejector rod (6) is movably connected inside the screw (2), a knob (3) is sleeved on the surface of the screw (2), a pressure spring (4) is sleeved on the surface of the knob (3), a shifting piece (5) is sleeved on the surface of the other end of the knob (3), a pressure spring limiting groove (10) and a shifting piece resetting groove (9) are respectively formed in two sides of the installation panel (8), the shifting piece resetting groove (9) and the pressure spring limiting groove (10) are mutually communicated, the pressure spring (4) is movably connected inside the pressure spring limiting groove (10), the shifting piece (5) is movably connected inside the shifting piece resetting groove (9), a direction identification groove (12) is formed in one end face, far away from the shifting piece (5), of the knob (3), a pawl (15) is arranged at one end, far away from the direction identification groove (12), of the screw (2), two shifting sheet clamping hooks (11) and four riveting notches (14) in an annular design are respectively arranged on the surface of the shifting sheet (5), a riveting sheet (13) matched with the riveting notches (14) in position and size is arranged on one end face, far away from the direction identification groove (12), of the knob (3), the shifting sheet (5) is sleeved on one end face of the knob (3) through the riveting notches (14) and the riveting sheet (13), and the shifting sheet (5) is clamped inside the shifting sheet reset groove (9) through the shifting sheet clamping hooks (11); the inner wall of the nut bin body (20) is movably connected with a floating nut (21), a rotation stopping block (22) and a spring (23) respectively, one end of the spring (23) is movably connected with one side of the inner wall of the nut bin body (20), the other end of the spring (23) is movably connected with one side of the rotation stopping block (22), one side, far away from the spring (23), of the rotation stopping block (22) is movably connected with one end of the floating nut (21), a nut bin cover (19) is arranged on one side face of the nut bin body (20), a sheet pressure spring (18) is arranged on the other side of the nut bin cover (19), a blocking piece (17) is arranged on the other side of the sheet pressure spring (18), a national standard countersunk head rivet (24) is arranged on the other side of the blocking piece (17), one end, close to the blocking piece (17), of the national standard countersunk head rivet (24) penetrates through the blocking piece (17), the sheet pressure spring (18), the nut bin cover (19) and the nut bin body (20) and extends to one side, far away from the nut bin cover (19), of the nut bin body (20), the blocking piece (17), the sheet pressure spring (18) and the nut bin cover (19) are fixedly connected with the surface of the nut bin body (20) through 24, the surface of one side, close to the nut bin body (20), of the nut bin cover (19) is movably connected with one end, far away from the rotation stopping block (22), of the floating nut (21), a damping salient point (27) is arranged on one side, close to the blocking piece (17), of the sheet pressure spring (18), the damping salient point (27) is movably connected with the surface of the blocking piece (17), a shifting sheet rotating groove (26) is formed in one side, close to the sheet pressure spring (18), of the nut bin cover (19), and a rotation stopping block conical surface (25) is formed in one end, far away from the spring (23), of the rotation stopping block (22); two equipment frame cross beams (35) are fixed at positions, close to the top and the bottom, of one side of the installation panel (8), an assembly (33) is arranged at one side, close to the 35, of the installation panel (8), and the assembly (33) is arranged between the two equipment frame cross beams (35).

2. The quick-locking anti-loose fastening device according to claim 1, characterized in that the installation of the installation panels (8) and 35 has two connection modes, one is installed behind the panel, the other is embedded in front of the panel, a screw (2), a knob (3), a pressure spring (4), a plectrum (5), a mandril (6), a national standard spring pad (7), the installation panel (8), a plectrum reset groove (9), a pressure spring limit groove (10), a plectrum hook (11), an orientation identification groove (12), a riveting sheet (13), a riveting notch (14) and a pawl (15) form a screw combination, a blocking sheet (17), a sheet pressure spring (18), a nut bin cover (19), a nut bin body (20), a floating nut (21), a rotation stop block (22), a spring (23), a national standard countersunk head rivet (24), a rotation stop block conical surface (25), a plectrum rotation groove (26) and a damping convex point (27) form a nut combination, the shapes and the sizes of the screw combination and the nut combination are matched with the connection modes of the shapes and the sizes of the plate rear installation and the plate front embedding.

3. A quick-lock anti-loose fastening device according to claim 1, characterized in that the shape of the said blade-returning groove (9) and the shape of the blade-catch (11) are matched with each other.

4. A quick-lock anti-loose fastening device according to claim 1 characterized in that the shape of the anti-rotation block (22) is of square design.

5. A quick-lock anti-loose fastening device according to claim 1, characterized in that the surface of the tapered surface (25) of the anti-rotation block is provided with a groove matching the shape and size of the pawl (15).

Technical Field

The invention relates to connector equipment, in particular to a quick-locking anti-loosening fastening device.

Background

In order to meet the requirement of aesthetic degree of electronic equipment, compact system layout and simple, convenient and efficient maintenance operation, the electrical and liquid cooling interfaces of the external connection of the component (or unit) and the function interconnection of the system are commonly connected by adopting elastic blind plugging.

The stability and reliability of the blind-mate electrical interconnection are very critical, and especially when the multi-point blind-mate electrical interconnection is adopted, the performance consistency is also very critical. Considering factors such as materials and manufacturing, in the design of a blind-mate electrical connector, a floating tolerance plug-in interconnection structure is generally adopted to ensure the reliability and consistency of electrical interconnection after plugging, and to realize the floating tolerance in the plugging process, a guide and elastic mechanism is generally designed in the connector, so that the elastic resistance is inevitably overcome in the plugging assembly process to realize the plugging purpose. Therefore, the suggestion is fixed the subassembly rapidly after the subassembly inserts, avoids the subassembly to pop out or the displacement, increases on foot the number of times of inserting, improves the effective life of connector.

The application of blind-mate liquid cooling connector is mature at present, and the inner conductors supported by the springs are designed in the general plug and the socket respectively, and the working principle of the blind-mate liquid cooling connector is as follows basically: the blind-mate liquid cooling connector is plugged, the end faces of the inner conductors are in contact, the two-way resistance of the springs and the radial damping of the rubber rings on the inner conductors of the plug and the socket are overcome in the plugging process, the inner interface is pushed open, the conduction of the channels in the plug and the socket is realized, the liquid cooling medium circulates, and the purpose of heat exchange is achieved. After the plug and the socket are separated, the inner conductors of the plug and the socket respectively and automatically return to the original positions under the support of the spring, and therefore the self-sealing of the plug and the socket after separation is achieved.

The blind-plugging liquid cooling connector has some problems in the application process, and the plug and the socket are easy to cause micro leakage due to factors such as the internal pressure of a liquid cooling system pipeline, the dynamic state of a sealing ring inside the connector and the like in the plugging and separating dynamic action process. After the plug is inserted in place, the plug and the socket are in relative static positions and generally cannot leak. Therefore, in order to avoid the leakage of the blind plug connector, the component with the liquid-cooled blind plug connector is suggested to be quickly fixed after being inserted into the component, so that the component is prevented from popping or displacing under the clamping of an elastic piece in the connector, and the leakage probability of the connector is increased.

At present, the assembly fixing measures adopting elastic blind plugging interconnection are more, and a common solution is that four loose and non-falling screws are preset at four corners of a panel of the assembly during design, the assembly is pushed in place firstly during operation, then one hand is used for firmly propping against the assembly to prevent the assembly from moving, and the other hand is vacated to screw the screws at the four corners of the panel. When the number and the variety of the blind-mate connectors are large, the assembly is propped against the assembly by one hand, so that the assembly is sometimes stressed to pop up or displace, the leakage probability of the blind-mate liquid-cooled connector is increased, the plugging times of all the blind-mate connectors are invisibly increased, and the service life of the connector is indirectly shortened. In addition, under the environment with higher requirements on vibration impact, the simple screw fixing mode without loosening and falling has no locking function, so that the risk of loosening and falling is higher, and the loss consequence caused by the hidden trouble is quite serious for high-precision electronic equipment.

In view of solving the problems and realizing the functions, the lock is a sealed, quickly assembled and disassembled and anti-falling lock, has ingenious conception, can realize the purpose of the invention and meets specific use requirements.

The basic principle of the patent is as follows: the flat screwdriver is clamped into the rotating groove at the top of the pin, so that the ejector rod moves axially along the inner hole of the pin to push the stopping slide block to rotate the pin by 90 degrees clockwise, the wedge-shaped block at the end part of the pin and the rectangular inner hole of the lock seat sleeve form 90-degree staggered locking, the screwdriver is released, the stopping slide block resets, the wedge-shaped block long groove on the stopping slide block is clamped with the wedge-shaped block at the end part of the pin, and the locking of the pin in a rotation prevention and falling prevention mode is realized.

Analysis of the internal structure of this patent shows that there is theoretically a certain floating space between the fixing sleeve and the fixing part (also understood as between the pin and the housing sleeve) and the position, which allows a certain play in the axial and radial directions after assembly, similar to a flexible connection. In actual use, the rubber gasket is used for isolating the two parts to play a role in sealing an interface. Therefore, the method is suitable for occasions with low assembly precision requirements and reliable anti-falling requirements, such as sealing and fixing of a cabin cover with a sealing rubber gasket, a sealing door, a sealing cover and the like.

The sealing type quick release lock can achieve the purpose of preventing the sealing quick lock from falling off, but cannot achieve the purposes of tightly locking the position and preventing the looseness, and cannot enable the assembly and the equipment frame to form a higher rigid body, so that the sealing type quick release lock is not suitable for mounting and fixing general electronic equipment, and cannot solve the technical problem mentioned in the invention.

Disclosure of Invention

The invention aims to solve the problems that the assembly cannot be quickly locked after being pushed in place, cannot be prevented from popping or displacing, can be tightly fixed, cannot form a higher rigid body with the assembly and an equipment frame, and is difficult to prevent fixing measures from loosening and even falling off and losing efficacy.

In order to achieve the purpose, the invention provides the following technical scheme:

a quick-locking anti-loose fastening device comprises an installation panel, a nut bin body and a screw, wherein a national standard elastic cushion is sleeved on the surface of the screw in a movable mode, an ejector rod is movably connected inside the screw, a knob is sleeved on the surface of the screw in a movable mode, a pressure spring is sleeved on the surface of the knob, a shifting piece is movably sleeved on the surface of the other end of the knob, a pressure spring limiting groove and a shifting piece resetting groove are respectively formed in two sides of the installation panel, the shifting piece resetting groove and the pressure spring limiting groove are mutually communicated, the pressure spring is movably connected inside the pressure spring limiting groove, the shifting piece is movably connected inside the shifting piece resetting groove, an orientation identification groove is formed in one end face, away from the shifting piece, of the screw, one end, away from the orientation identification groove, is provided with a pawl, the surface of the shifting piece is respectively provided with two shifting piece clamping hooks and four riveting notches which are designed in an annular mode, and a riveting piece which is matched with the position and size of the riveting notch is formed in one end face, away from the orientation identification groove, of the knob, the shifting piece is sleeved on one end face of the knob through the riveting notch and the riveting piece, and the shifting piece is clamped in the shifting piece resetting groove through the shifting piece clamping hook; the inner wall of the nut bin body is respectively and movably connected with a floating nut, a rotation stopping block and a spring, one end of the spring is movably connected with one side of the inner wall of the nut bin body, the other end of the spring is movably connected with one side of the rotation stopping block, which is far away from the spring, is movably connected with one end of the floating nut, one side surface of the nut bin body is provided with a nut bin cover, the other side of the nut bin cover is provided with a sheet pressure spring, the other side of the sheet pressure spring is provided with a separation sheet, the other side of the separation sheet is provided with a national standard countersunk head rivet, one end of the national standard countersunk head rivet, which is close to the separation sheet, penetrates through the separation sheet, the sheet pressure spring, the nut bin cover and the nut bin body and extends to one side of the nut bin body, which is far away from the nut bin cover, the separation sheet, the sheet pressure spring and the nut bin cover are fixedly connected with the surface of the nut bin body, one side surface, which is close to the nut bin cover, which is far away from the rotation stopping block, is movably connected with the floating nut, a damping convex point is arranged on one side of the plate pressure spring close to the blocking piece, the damping convex point is movably connected with the surface of the blocking piece, a shifting piece rotating groove is formed in one side of the nut bin cover close to the plate pressure spring, and a rotation stopping block conical surface is formed in one end, far away from the spring, of the rotation stopping block; two equipment frame cross beams are fixed at positions, close to the top and the bottom, of one side of the installation panel, an assembly is arranged at one side, close to the installation panel, and the assembly is arranged between the two equipment frame cross beams.

Preferably: the installation of installation panel and have two kinds of connected modes, one kind is the installation behind the board, another kind is the embedding dress before the board, screw, knob, pressure spring, plectrum, ejector pin, national standard bullet pad, installation panel, plectrum reset slot, pressure spring spacing groove, plectrum pothook, position identification groove, riveting piece, riveting notch and pawl constitute the screw combination, the separation blade, piece pressure spring, nut cang gai, the nut storehouse body, floating nut, stop the spiral piece, the spring, national standard countersunk head rivet, stop the spiral piece conical surface, plectrum rotation groove and damping bump make up into the nut combination, the shape and the size of screw combination and nut combination and the installation behind the board and the embedding shape and the both connected modes of size of the dress are matchd each other before the board.

Preferably: the shape of the shifting piece resetting groove is matched with that of the shifting piece clamping hook.

Preferably: the shape of the rotation stopping block is square.

Preferably: the surface of the conical surface of the rotation stopping block is provided with a groove matched with the pawl in shape and size.

Due to the adoption of the technical scheme, the invention has the following advantages:

the invention is suitable for electronic equipment adopting elastic blind-mating interconnection, and uses a quick-locking anti-loosening fastening device which comprises the following components: firstly, the assembly can be quickly locked after being pushed in place, the assembly is prevented from popping up or displacing, the assembly disassembly and assembly efficiency can be improved, the labor intensity is reduced, the leakage probability of the blind-mate liquid-cooled connector can be effectively reduced, meanwhile, unnecessary plug-in actions are reduced, and the service life of the related blind-mate connector is prolonged; secondly, the special loose and non-falling screw is adopted to tightly fix the assembly, so that the assembly and the equipment frame form a higher rigid body, the radial anti-rotation measure of the end surface of the screw is adopted, the risk of loosening and falling of the screw is avoided, the vibration resistance strength of the whole equipment is improved, and the guarantee is provided for the long-term reliable operation of the equipment.

Drawings

Fig. 1 is a front view schematically showing a disassembled structure of a screw combination of a quick-locking anti-loose fastening device.

Fig. 2 is a rear view schematically showing a disassembled structure of a screw combination of the quick-locking anti-loose fastening device.

Fig. 3 is a sectional view of a screw assembly assembled to a mounting panel in a quick-lock anti-loose fastening device.

Fig. 4 is a front view of a screw combination assembled to a mounting panel in a quick lock anti-loose fastening device.

FIG. 5 is a rear view of a screw assembly of a quick lock anti-loose fastener assembled to a mounting panel.

FIG. 6 is a view of the rivet connection of the knob and the pick in the quick lock anti-binding device.

FIG. 7 is an exploded view of a quick lock anti-loose fastener with a nut mounted behind the plate.

FIG. 8 is a sectional view of the nut assembly installed behind the middle plate of a quick lock anti-loose fastening device.

Fig. 9 is a schematic structural view of a plate compression spring in a quick-lock anti-loose fastening device.

Fig. 10 is a schematic structural view of a nut bin cover in a quick-locking anti-loose fastening device.

FIG. 11 is a schematic view of a stop knob of a quick lock anti-loose fastening device.

FIG. 12 is an exploded view of the nut assembly of the quick lock anti-loose fastener with the front plate inserted in the front.

FIG. 13 is a sectional view of the nut assembly of the quick lock anti-loose fastening device with the front plate inserted in the front.

FIG. 14 is a view of the assembly of the quick lock anti-loose fastener assembly with nut assemblies mounted behind the plate and the cross member of the equipment frame.

FIG. 15 is a cross-sectional view of a quick lock anti-loose fastener assembly with post-plate mounting nuts on the equipment frame cross members.

FIG. 16 is a side cross-sectional view of an apparatus frame rail employing plate back mounting nut assembly in a quick lock anti-loose fastener.

FIG. 17 is a cross-sectional view of a quick-locking anti-loose fastening device with a nut assembly embedded in front of a plate on a cross beam of an equipment frame.

FIG. 18 is a side sectional view of a quick-locking anti-loose fastening device with a front nut assembly for a frame cross beam of the equipment.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1 to 18, in an embodiment of the present invention, a quick-lock anti-loose fastening device includes the following embodiments:

example 1

The nut-type spring washer comprises an installation panel 8, a nut bin body 20 and a screw 2, wherein a national standard spring washer 7 is sleeved on the surface of the screw 2, an ejector rod 6 is movably connected inside the screw 2, a knob 3 is sleeved on the surface of the screw 2, a pressure spring 4 is sleeved on the surface of the knob 3, a shifting piece 5 is movably sleeved on the surface of the other end of the knob 3, a pressure spring limiting groove 10 and a shifting piece resetting groove 9 are respectively arranged on two sides of the installation panel 8, the shifting piece resetting groove 9 and the pressure spring limiting groove 10 are mutually communicated, the pressure spring 4 is movably connected inside the pressure spring limiting groove 10, the shifting piece 5 is movably connected inside the shifting piece resetting groove 9, a direction identification groove 12 is arranged on one end face, far away from the shifting piece 5, of the screw 2, a pawl 15 is arranged at one end, far away from the direction identification groove 12, two shifting piece clamping hooks 11 and four riveting notches 14 which are designed in an annular shape are respectively arranged on the surface of the shifting piece 5, a riveting sheet 13 matched with the position and size of the riveting notch 14 is arranged on one end face of the knob 3 far away from the direction identification groove 12, the shifting sheet 5 is sleeved on one end face of the knob 3 through the riveting notch 14 and the riveting sheet 13, and the shifting sheet 5 is clamped in the shifting sheet reset groove 9 through the shifting sheet clamping hook 11; the inner wall of the nut bin body 20 is movably connected with a floating nut 21, a rotation stopping block 22 and a spring 23 respectively, one end of the spring 23 is movably connected with one side of the inner wall of the nut bin body 20, the other end of the spring 23 is movably connected with one side of the rotation stopping block 22, one side, far away from the spring 23, of the rotation stopping block 22 is movably connected with one end of the floating nut 21, a nut bin cover 19 is arranged on one side face of the nut bin body 20, a sheet pressure spring 18 is arranged on the other side of the nut bin cover 19, a blocking sheet 17 is arranged on the other side of the sheet pressure spring 18, a national standard countersunk head rivet 24 is arranged on the other side of the blocking sheet 17, one end, close to the blocking sheet 17, of the national standard countersunk head rivet 24 penetrates through the blocking sheet 17, the sheet pressure spring 18, the nut bin cover 19 and the nut bin body 20 and extends to one side, far away from the nut bin cover 19, of the blocking sheet 17, the sheet pressure spring 18 and the nut bin cover 19 are fixedly connected with the surface of the nut bin cover 20 through 24, one side surface, close to the nut bin cover 19, close to one side surface of the nut bin cover 20 and one end, far away from the rotation stopping block 22, of the floating nut bin 21 The movable connection is adopted, one side of the plate compression spring 18 close to the blocking piece 17 is provided with a damping convex point 27, the damping convex point 27 is movably connected with the surface of the blocking piece 17, one side of the nut bin cover 19 close to the plate compression spring 18 is provided with a shifting piece rotating groove 26, and one end of the rotation stopping block 22 far away from the spring 23 is provided with a rotation stopping block conical surface 25; two equipment frame cross beams 35 are fixed at positions, close to the top and the bottom, of one side of the installation panel 8, an assembly 33 is arranged at one side, close to the 35, of the installation panel 8, and the assembly 33 is arranged between the two equipment frame cross beams 35.

As shown in the figure, the mounting plates of the mounting panels 8 and 35 are mounted, a screw 2, a knob 3, a pressure spring 4, a plectrum 5, a mandril 6, a national standard spring cushion 7, the mounting panel 8, a plectrum reset groove 9, a pressure spring limiting groove 10, a plectrum hook 11, an orientation identification groove 12, a riveting sheet 13, a riveting notch 14 and a pawl 15 form a screw combination, a blocking sheet 17, a sheet pressure spring 18, a nut bin cover 19, a nut bin body 20, a floating nut 21, a stop block 22, a spring 23, a national standard countersunk head rivet 24, a stop block conical surface 25, a plectrum rotating groove 26 and a damping salient point 27 form a nut combination, the shapes and the sizes of the screw combination and the nut combination are matched with the connection modes of the shapes and the sizes of the post-mounting panel, in the post-mounting of the panel, firstly, the equipment frame cross beam 35 and the mounting panel 8 need to be connected by the nut combination, the knob 3 at four corners of the mounting panel 8 rotates 90 degrees anticlockwise, the locking assembly is completed, and then the screw combination and the nut combination are connected, the method adopts a plate post-installation mode, and the shapes of the blocking piece 17, the piece pressure spring 18, the nut bin cover 19 and the nut bin body in the device need to be changed according to different actual installation, so that the installation reliability and stability are ensured.

The shape of the plectrum reset groove 9 is matched with that of the plectrum hook 11, so that the connection stability is enhanced.

The shape of the rotation stopping block 22 is a square design, so that the rotation stopping block 22 is prevented from rotating along with the rotation, and the square design is not easy to rotate.

The surface of the conical surface 25 of the rotation stopping block is provided with a groove matched with the pawl 15 in shape and size, the groove and the pawl 15 are matched with each other, the rotation of the pawl 15 is avoided, and the stability is enhanced.

Example 2

The nut-type spring washer comprises an installation panel 8, a nut bin body 20 and a screw 2, wherein a national standard spring washer 7 is sleeved on the surface of the screw 2, an ejector rod 6 is movably connected inside the screw 2, a knob 3 is sleeved on the surface of the screw 2, a pressure spring 4 is sleeved on the surface of the knob 3, a shifting piece 5 is movably sleeved on the surface of the other end of the knob 3, a pressure spring limiting groove 10 and a shifting piece resetting groove 9 are respectively arranged on two sides of the installation panel 8, the shifting piece resetting groove 9 and the pressure spring limiting groove 10 are mutually communicated, the pressure spring 4 is movably connected inside the pressure spring limiting groove 10, the shifting piece 5 is movably connected inside the shifting piece resetting groove 9, a direction identification groove 12 is arranged on one end face, far away from the shifting piece 5, of the screw 2, a pawl 15 is arranged at one end, far away from the direction identification groove 12, two shifting piece clamping hooks 11 and four riveting notches 14 which are designed in an annular shape are respectively arranged on the surface of the shifting piece 5, a riveting sheet 13 matched with the position and size of the riveting notch 14 is arranged on one end face of the knob 3 far away from the direction identification groove 12, the shifting sheet 5 is sleeved on one end face of the knob 3 through the riveting notch 14 and the riveting sheet 13, and the shifting sheet 5 is clamped in the shifting sheet reset groove 9 through the shifting sheet clamping hook 11; the inner wall of the nut bin body 20 is movably connected with a floating nut 21, a rotation stopping block 22 and a spring 23 respectively, one end of the spring 23 is movably connected with one side of the inner wall of the nut bin body 20, the other end of the spring 23 is movably connected with one side of the rotation stopping block 22, one side, far away from the spring 23, of the rotation stopping block 22 is movably connected with one end of the floating nut 21, a nut bin cover 19 is arranged on one side face of the nut bin body 20, a sheet pressure spring 18 is arranged on the other side of the nut bin cover 19, a blocking sheet 17 is arranged on the other side of the sheet pressure spring 18, a national standard countersunk head rivet 24 is arranged on the other side of the blocking sheet 17, one end, close to the blocking sheet 17, of the national standard countersunk head rivet 24 penetrates through the blocking sheet 17, the sheet pressure spring 18, the nut bin cover 19 and the nut bin body 20 and extends to one side, far away from the nut bin cover 19, of the blocking sheet 17, the sheet pressure spring 18 and the nut bin cover 19 are fixedly connected with the surface of the nut bin cover 20 through 24, one side surface, close to the nut bin cover 19, close to one side surface of the nut bin cover 20 and one end, far away from the rotation stopping block 22, of the floating nut bin 21 The movable connection is adopted, one side of the plate compression spring 18 close to the blocking piece 17 is provided with a damping convex point 27, the damping convex point 27 is movably connected with the surface of the blocking piece 17, one side of the nut bin cover 19 close to the plate compression spring 18 is provided with a shifting piece rotating groove 26, and one end of the rotation stopping block 22 far away from the spring 23 is provided with a rotation stopping block conical surface 25; two equipment frame cross beams 35 are fixed at positions, close to the top and the bottom, of one side of the installation panel 8, an assembly 33 is arranged at one side, close to the 35, of the installation panel 8, and the assembly 33 is arranged between the two equipment frame cross beams 35.

As shown in the figure, the installation tool for installing the panels 8 and 35 is a front embedded panel, the front embedded panel is the same as the rear panel, and only the installation tool is different from the shapes of the blocking piece 17, the plate pressure spring 18, the nut bin cover 19 and the nut bin body 20, the installation mode is used for rapidly installing the components 33 and the equipment frame beam 35 in order to match different installation panels 8, the components 33 and equipment frame beams, the screw 2, the knob 3, the pressure spring 4, the plectrum 5, the ejector rod 6, the national standard elastic cushion 7, the installation panel 8, the plectrum reset groove 9, the pressure spring limiting groove 10, the plectrum clamping hook 11, the direction identification groove 12, the riveting piece 13, the riveting notch 14 and the pawl 15 form a screw combination, the blocking piece 17, the piece pressure spring 18, the nut bin cover 19, the nut bin body 20, the floating nut 21, the rotation stopping block 22, the spring 23, the national standard countersunk head rivet 24, the rotation stopping block 25, the plectrum rotation groove 26 and the damping salient point 27 form a nut combination, and the nut combination is connected with the shape and the size of the front embedded panel installed and the front embedded panel after the board The connection modes are matched with each other.

The shape of the plectrum reset groove 9 is matched with that of the plectrum hook 11.

The shape of the anti-rotation block 22 is a square design.

The surface of the conical surface 25 of the rotation stopping block is provided with a groove matched with the pawl 15 in shape and size.

The operation method of the invention is as follows:

firstly, a matched mounting hole needs to be prefabricated on a component mounting panel 8, the mounting hole is characterized in that a pressure spring limiting groove 10 is arranged on the front side, a shifting piece resetting groove 9 is arranged on the back side, a pressure spring 4 is placed into the pressure spring limiting groove 10 on the front side of the matched mounting hole, a knob 3 is placed into the mounting panel 8 from the front side, the knob 3 penetrates through the pressure spring 4 and the matched mounting hole of the panel, a shifting piece 5 is sleeved on the tail portion of the knob 3 on the back side of the mounting panel 8 and is expanded and riveted tightly, it is noted that two shifting piece clamping hooks 11 on the shifting piece 5 are required to be aligned with two formula position identification grooves 12 on the end portion of the knob 3 in an angle mode, riveting pieces 13 on the knob 3 and four riveting notches 14 on the shifting piece 5 are required to be tightly attached, and the shifting piece 5 returns to the shifting piece resetting groove 9 on the back side of the mounting panel 8 under the support of the pressure spring 4 in a natural state after expansion and riveting. Secondly, the ejector rod 6 penetrates into a screw inner hole from the tail part of the screw 2, the screw 2 is expanded and riveted in a 90-degree hole at the root part of a hexagonal groove at the head part to form a whole, and then the national standard elastic cushion 7 is sleeved on the screw rod of the screw 2. Finally, the integrated screw is screwed into the inner ring of the knob 3 which is assembled previously, and the assembling process of the screw combination 1 is completed.

The invention relates to a nut combination design which has two sets of schemes, one set is a nut combination 16 suitable for being installed behind a plate, the other set is a nut combination 16 suitable for being embedded in front of the plate, except the differences in the shapes of a baffle sheet 17, a sheet pressure spring 18, a nut bin cover 19 and a nut bin body 20, a floating nut 21, a rotation stopping block 22 and a spring 23 are universal parts, the assembly process and the scheme principle of accessories of the two sets of schemes are the same, the following nut combination installed behind the plate is taken as an example, and the assembly process is analyzed as follows:

placing a spring 23 at the bottom of a nut cabin body A20, then placing a rotation stopping block 22 in the direction, contacting and clamping the spring 23, then placing a floating nut 21 in the direction, enabling the floating nut to be matched with a conical surface 25 of the rotation stopping block on the rotation stopping block 22, sequentially covering a nut cabin cover A19, a sheet pressure spring A18 and a baffle A17, paying attention to the positive and negative directions of all parts, enabling a plectrum rotating groove 26 of the nut cabin cover A19 to be outward, enabling two symmetrical groups of four damping salient points 27 on the sheet pressure spring A18 to be inward, enabling countersunk holes at four corners of a baffle A17 to be outward, enabling the positions of the 3 parts to be aligned with the nut cabin body A20, finally using national standard countersunk head rivets 24 to penetrate through corresponding through holes at four corners of the baffle A17, the sheet pressure spring A18, the nut cabin cover A19 and the nut cabin body A20, riveting and leveling the countersunk holes at the reverse side of the nut cabin body A20, and finishing the assembly process of the nut combination A16 which is installed after being formed into a plate.

The following is to understand how to use the quick locking and anti-loosening fastening device to achieve the purpose of the invention through a specific application scheme of a nut combination 16 and a screw combination matching combination which are installed behind a plate, and the scheme is divided into two parts, 1, an assembly is installed: after inserting the assembly into the equipment frame, need locking the subassembly before screwing the screw, 2. tear the subassembly open: before the component is pulled out of the equipment frame, the screw needs to be unscrewed and then the component needs to be unlocked;

after the assembly is inserted into the equipment frame, the assembly is locked first and then the screw is screwed;

the quick lock assembly acts as follows:

after the component is inserted into the equipment frame in place, the knob 3 is pinched and pushed in, the pressure spring 4 is compressed, the knob 3 is pushed in place along the axial direction of the knob, at the moment, the plectrum 5 which is integrated with the knob 3 moves forwards along with the pushing in of the knob 3, passes through gaps at the corresponding positions of the blocking piece 17 and the plate pressure spring 18, enters the plectrum rotating groove 26 on the nut bin cover 19, rotates the knob 3 anticlockwise by 90 degrees, synchronously rotates the plectrum 5 by 90 degrees, and overcomes the resistance of two groups of four damping convex points 27 which are symmetrical on the plate pressure spring 18 in the process of rotating the plectrum 5 by 90 degrees, then stops at the 90-degree position, the two formula position identification grooves 12 at the end part of the knob 3 are in a vertical state, so that the component is rapidly locked, and the component is prevented from being popped out of the equipment frame or moving;

the action process of screwing the screw and the screw anti-loosening principle are as follows:

insert 2 head hexagonal grooves of screw with the allen key, the axial displacement forward of ejector pin 6 is also withstood simultaneously to the allen key terminal surface, clockwise rotation allen key, and the screw of screw 2 closes with floating nut 21 soon, continues to rotate the spanner, along with the increase of depth of engagement, 6 tip contact gradually of ejector pin and withstand only revolving block 22, continue to rotate the spanner at this moment and close screw 2 soon, only revolve block 22 compression spring 23 and overcome the resistance and move forward, screw 2 screws up finally. The inner hexagonal wrench is taken out, the rotation stopping block 22 moves back under the elastic force release of the spring 23, the four grooves on the rotation stopping block 22 clamp the pawls 15 at the four positions at the tail part of the screw 2 and push back the ejector rod 6, and because the appearance of the rotation stopping block 22 and the inner cross section of the nut bin body 20 contacted with the rotation stopping block 22 are both in a square design, the risk of preventing the rotation stopping block 22 from rotating is actually realized, the four grooves on the rotation stopping block 22 clamp the pawls 15 at the four positions at the tail part of the screw 2, and under the elastic force of the spring 23, the situation that the clamping action is invalid due to the retraction position of the rotation stopping block 22, the pawls 15 are tripped can be prevented, and the screw 2 is fundamentally and effectively prevented from loosening and falling;

before the assembly is pulled out of the equipment frame, the screw is unscrewed and then the assembly is unlocked;

the action process of unlocking and unscrewing the screw is as follows:

insert interior hexagonal spanner to screw 2 head hexagonal groove, interior hexagonal spanner terminal surface also withstands ejector pin 6 axial displacement forward simultaneously, and 6 tip of ejector pin withstand only revolve piece 22 and compression spring 23 overcome the resistance and move forward, make four last grooves of only revolving piece 22 and screw 2 afterbody four pawls 15 dropout, reach the purpose of unblock screw 2, screw 2 can rotate this moment, and the interior hexagonal spanner of anticlockwise rotation makes screw 2 break away from floating nut 21.

The unlocking component acts as follows:

the knob 3 is held between the fingers and rotated 90 degrees clockwise, the plectrum 5 integrated with the knob 3 also rotates 90 degrees synchronously, the resistance of two groups of four damping convex points 27 on the plate compression spring 18 must be overcome in the process of rotating 90 degrees by the plectrum 5, then the plectrum stops at the position of 90 degrees, the two formula position identification grooves 12 at the end part of the knob 3 are in a horizontal state, at the moment, the compression spring 4 can generate force to release and support the knob 3 to move outwards, the knob 3 is pulled out outwards along the trend, the plectrum 5 also moves outwards synchronously and returns to the plectrum reset groove 9 at the reverse side of the installation panel 8, the action of unlocking the assembly is completed, and finally the assembly can be pulled out from the equipment frame.