CN109210040B

CN109210040B - Novel locker

Info

Publication number: CN109210040B
Application number: CN201811435079.5A
Authority: CN
Inventors: 王付华
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2020-08-04
Anticipated expiration: 2038-11-28
Also published as: CN109210040A

Abstract

The invention belongs to the technical field of lockers, and particularly relates to a novel locker which comprises a fixed block, wherein a screw rod is arranged in the fixed block, one end of the screw rod is provided with a pin shaft, two ends of the pin shaft are provided with elastic check rings for shafts, the surface of the screw rod is provided with a guide block, the guide block is provided with an oblate through hole, and the screw rod is arranged in the oblate through hole; the middle of the fixed block is provided with a square hole penetrating through the cavity for a polished rod section of the screw to pass through, two side faces are provided with waist-shaped holes, the width of the waist-shaped holes is matched with that of a pin shaft arranged at the head of the screw, and after the fixed block is fixed on a tray bottom plate by screws, a locker main body can swing around the fixed block or linearly move along the waist-shaped holes at the two side faces of the fixed block.

Description

Novel locker

Technical Field

The invention relates to a locking mode between a tray provided with a control module in an avionic system and an inner frame of a case. In particular to a quick assembly and disassembly mode between a tray provided with a control module and a chassis inner frame, in particular to a novel locker.

Background

In a case of an avionic system, a tray provided with a control module is mounted on an inner frame of the case, and the tray for bearing the control module is required to be quickly replaced and firmly positioned in order to deal with various emergency situations. If the traditional installation mode of directly fastening the bolt or the bolt and the nut is used, the time is wasted, the installation mode is inconvenient, and the bolt and the nut are easy to fall off, so that hidden dangers can be formed in certain occasions.

Disclosure of Invention

To solve the problems set forth in the background art described above. The invention provides a novel locker which has the characteristics of simplicity, reliability, time and labor saving and firm positioning.

In order to achieve the purpose, the invention provides the following technical scheme: a novel locker comprises a fixed block, wherein a screw is arranged in the fixed block, a pin shaft is arranged at one end of the screw, elastic check rings for shafts are arranged at two ends of the pin shaft, a guide block is arranged on the surface of the screw, an oblate through hole is formed in the guide block, the screw is arranged in the oblate through hole, a circular step hole is formed in the rear part of the oblate through hole, the circular step hole is matched with a half bearing, a shaft sleeve, a gasket and a check ring A, a check ring B is arranged in the shaft sleeve at a position corresponding to the check ring, a gasket A and a gasket B are arranged on the side surface of the check ring B, a knob is arranged outside the shaft sleeve, a nut is lapped at the end part of the shaft sleeve, the nut and the knob are connected into a whole through two cylindrical pins, a semicircular groove is formed in, the utility model discloses a nut, including hasp and wave form elasticity packing ring overlap joint, the screw rod is provided with the snap spring, the top of screw rod is provided with the snap spring, the snap spring is provided with the snap spring, and the snap spring is provided with the nut, and the snap spring is provided with two symmetry apertures on the oblate connects the disc, symmetry aperture and sliding pin looks adaptation, the top and the bottom of screw rod are provided with the snap spring, the snap spring is located the nut and passes through the dead slot, and its inboard hugs closely the screw rod planomum, the one end of nut is provided with packing ring C and riveting circle, packing ring C's.

Preferably, a square hole penetrating through the cavity is formed in the middle of the fixing block, and waist-shaped holes are formed in two side faces of the fixing block.

Preferably, the screw rod is a flat round body, the surface of the screw rod is divided into a polished rod and a thread, the polished rod is located at the front end of the thread, and the polished rod is partially provided with a through hole.

Preferably, one section of the front portion of the nut is a screw hole, the length of the screw hole is less than half of the overall length of the nut, the screw rod is matched with the nut, the shape of the front half section of the nut is a disc-connected oblate shape, two symmetrical small holes matched with sliding pins are formed in the rear plane of the disc, grooves are symmetrically formed in the flat two side faces of the oblate shape and penetrate through the screw thread, the depth size formed by the two grooves is slightly smaller than the flat face of the screw rod, the shape of the rear half section of the nut is a hollow cylinder, the aperture of the rear half section of the nut is slightly larger than the outer diameter of.

Preferably, the engagement between the screw and the nut is set to a large pitch clearance.

Preferably, the clamp spring is made of a stainless steel spring steel wire, the diameter of the steel wire is slightly larger than the pitch of the screw rod but smaller than the width of the two grooves in the front half section of the nut, and the size of the opening end of the clamp spring is smaller than that of the circular arc end.

Preferably, the inner arc surface of the lock catch is matched with the outer arc surface of the lock hook, a special-shaped hole is formed in the plane, and the outer end of the plane extends for one section and is bent.

Preferably, the gasket C and the riveting ring form a combined retainer ring, the gasket C and the riveting ring are respectively in self-centering fit with a conical surface and a conical hole to ensure that the two holes are coaxial, the other surface of the gasket C is provided with an annular groove, and the other surface of the riveting ring is provided with a step hole.

Preferably, the structure with the function of the one-way overrunning clutch is composed of a main functional part consisting of a screw rod, a nut, a guide block, a lock hook, a wave-shaped elastic washer, a clamp spring, a pressure spring and a combined retainer ring and auxiliary parts.

Preferably, the half bearing, the shaft sleeve, the gasket, the washer A, the steel ball A and the steel ball B form a combined bearing which plays a role in the axial direction and the radial direction.

Compared with the prior art, the invention has the beneficial effects that:

the novel locker provided by the invention utilizes the working principle of the overrunning clutch and combines a specific structure to realize quick assembly, disassembly and locking between a tray provided with a control module in an avionic system and an inner frame of a case.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a cross-sectional view of the novel load binder of the present invention;

FIG. 2 is a schematic structural view of the profile of the novel fastener of the present invention;

FIG. 3 is a schematic view of the structure of the locking device of the present invention;

FIG. 4 is a schematic view of the latch hook latch of the present invention;

FIG. 5 is a schematic structural view of the components of the present invention;

in the figure: 1. a fixed block; 2. a pin shaft; 3. a screw; 4. a guide block; 5. locking; 6. a retainer ring A; 7. a gasket A; 8. a gasket B; 9. a shaft sleeve; 10. a nut; 11. a knob; 12. a washer C; 13. riveting a ring; 14. a pressure spring; 15. a washer D; 16. a slide pin; 17. a cylindrical pin; 18. a clamp spring; 19. a disc spring; 20. a retainer ring B; 21. a gasket; 22. steel balls A; 23. steel balls B; 24. a half bearing; 25. a wave-shaped elastic washer; 26. a circlip for the shaft; 27. a chassis inner frame; 28. a latch hook; 29. a tray bottom plate.

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.

Example 1

Referring to fig. 1-5, the present invention provides the following technical solutions: a novel locking device comprises a fixed block 1, wherein a screw rod 3 is arranged in the fixed block 1, one end of the screw rod 3 is provided with a pin shaft 2, two ends of the pin shaft 2 are provided with elastic check rings 26 for shafts, the surface of the screw rod 3 is provided with a guide block 4, the guide block 4 is provided with an oblate through hole, the screw rod 3 is arranged in the oblate through hole, the rear part of the oblate through hole is provided with a circular step hole, the circular step hole is matched with a half bearing 24, a shaft sleeve 9, a gasket 21 and a check ring A6, the position corresponding to the check ring 6 in the shaft sleeve 9 is provided with a check ring B20, the side surface of the check ring B20 is provided with a gasket A7 and a gasket B8, the outside of the shaft sleeve 9 is provided with a knob 11, the end part of the shaft sleeve 9 is lapped with a nut 10, the shaft sleeve 9, the nut 10 and the knob 11, a lock catch 5 and a wave-shaped elastic washer 25 are arranged in the semicircular groove, the lock catch 5 is lapped with the wave-shaped elastic washer 25, the plane is provided with a special-shaped hole which can rotate around the screw rod 3 and can move along the radial direction of the screw rod 3, the outer end of the plane extends for a section and is bent, the lock catch 5 can be pulled by hand to rotate, so that emergency unlocking is convenient under special conditions, the thread section of the screw rod 3 is matched with the nut 10, the nut 10 is an oblate connecting disc, two symmetrical small holes are arranged on the oblate connecting disc, the symmetrical small holes are matched with the sliding pins 16, snap springs 18 are arranged at the top and the bottom of the screw rod 3, the snap springs 18 are positioned in the through grooves of the nut 10, and the inner side of the nut is tightly attached to the flat surface of the screw rod 3, one end of the nut 10 is provided with a gasket C12 and a riveting ring 13, the side surface of the washer C12 is provided with a pressure spring 14, and the shaft sleeve 9 is internally provided with a disk spring 19.

Specifically, be equipped with the square hole that runs through the cavity in the middle of the fixed block 1, both sides face is equipped with waist shape hole, and the middle square hole that runs through the cavity that is equipped with of fixed block 1 supplies the polished rod section of screw rod 3 to pass through, and both sides face is equipped with its width in waist shape hole and the round pin axle 2 adaptation of dress at the screw rod 3 head, and after fixed block 1 was fixed in tray bottom plate 29 with the screw, the locker main part can be around fixed block 1 swing or make linear movement along the waist shape hole of fixed block 1 both sides face.

Specifically, the screw rod 3 is a flat round body, the surface of the screw rod 3 is divided into a polished rod and a thread, the polished rod is located at the front end of the thread, and the polished rod is partially provided with a through hole.

Specifically, one section of the front portion of the nut 10 is a screw hole, the length of the screw hole is less than half of the overall length of the nut 10, the screw rod 3 is matched with the nut 10, the front half section of the nut 10 is in a shape of a disc connected oblate, two symmetrical small holes matched with the sliding pins 16 are formed in the rear plane of the disc, grooves are symmetrically formed in the two flat side faces of the oblate and penetrate through the screw thread, the depth size formed by the two grooves is slightly smaller than the flat face of the screw rod 3, the rear half section of the nut 10 is in a hollow cylinder shape, the aperture of the rear half section of the nut is slightly larger than the outer diameter of the screw rod 3.

Specifically, the screw 3 and the nut 10 are matched to form a larger pitch gap, a large value is selected from the related thread standards, the diameter of a steel wire of the clamp spring 18 is larger than the thread pitch of the screw 3, the steel wire is embedded into the thread of the screw 3 when the clamp spring 18 is opened, the nut 10 and the screw 3 are in gapless transmission, and the gap eliminating function fails when the clamp spring 18 rebounds to the flat surface of the screw 3.

Specifically, the snap spring 18 is made of a stainless steel spring steel wire, the diameter of the steel wire is slightly larger than the pitch of the screw rod 3 and is smaller than the width of two grooves in the front half section of the nut 10, the size of the opening end of the snap spring 18 is smaller than that of the arc end, the snap spring 18 is made of the stainless steel spring steel wire, the snap spring 18 cannot fall off after the snap spring is placed in the groove of the nut 10, the inner side of the snap spring can clamp the flat surface of the screw rod 3, the screw rod 3 cannot rotate in the oblate hole of the guide block 4, the snap spring 18 is always in a circulating state of being propped open and reset by the screw rod 3 in the rotation process of the nut 10, and therefore the rotation of the knob 11 assembly is not continuous but performed in a 180-.

Specifically, the inner arc surface of the lock catch 5 is matched with the outer arc surface of the lock hook 28, a special-shaped hole is formed in the plane, and the outer end of the plane extends for a section and is bent.

Specifically, the gasket C12 and the riveting ring 13 form a combined retainer ring, the two are respectively matched with each other in a self-centering manner by adopting a conical surface and a conical hole to ensure that the two holes are coaxial, the other surface of the gasket C12 is provided with an annular groove, the other surface of the riveting ring 13 is provided with a step hole, the other surface of the gasket C12 is provided with an annular groove to be matched with the pressure spring 14, and the other surface of the riveting ring 13 is provided with a step hole to be in loose riveting with the thin wall at the tail end of the nut 10 so as to prevent the nut 10 from falling off but not influencing the axial movement of the tail end of the.

In particular to a structure with the function of a one-way overrunning clutch, which is composed of a screw rod 3, a nut 10, a guide block 4, a lock hook 28, a wave-shaped elastic washer 25, a snap spring 18, a pressure spring 14, a combined retainer ring as a main functional part and the rest as an auxiliary part,

specifically, the half bearing 24, the shaft sleeve 9, the gasket 21, the washer a7, the steel ball a22 and the steel ball B23 form a combined bearing which has both axial and radial functions, and both axial and radial functions of rolling friction are realized, so that the knob 11 can rotate flexibly without retardation.

The working principle and the using process of the invention are as follows: according to the invention, firstly, a lock hook 28 is fixed on an inner frame 27 of a chassis by a screw, a fixed block 1 of a locker is fixed on a tray bottom plate 29 provided with a control module by a screw, a knob 11 is rotated, and under the action of a flat hole of a guide block 4, a locker main body can only do linear motion along the axial direction of a screw rod 3; when the latch 5 of the locker closes the latch hook 28, the latch 5 is rotated to make the arc surface of the latch 5 fit with the arc surface of the latch hook 28, the knob 11 is continuously rotated, the latch 5 generates an axial pressure on the wave-shaped elastic washer 25 to deform the wave-shaped elastic washer, the latch 5 keeps a pressing state on the latch hook 28 under the action of the disk spring 19 and the pressure spring 14, that is, the locker locks the tray bottom plate 29 and the chassis inner frame 27 in a locking state.

When the knob 11 is continuously rotated in the locking direction by the locker under the locking state, the axial pressure generated by the lock catch 5 on the wave-shaped elastic washer 25 is further increased, the increased axial force acts on the pressure spring 14 through the half bearing 24, the steel ball B23, the washer A7, the washer B8, the disc spring 19, the nut 10, the sliding pin 16 and the washer D15, so that the nut 10 slightly backs off, when the knob 11 is rotated to 180 degrees, the snap spring 18 rebounds to the flat surface of the screw rod 3, the nut 10 resets to the original position under the action of the pressure spring 14 because the screw rod 3 and the nut 10 are provided with larger pitch gaps, when the knob 11 assembly is continuously rotated and locked, the nut 10 repeatedly generates a backing-off reset action at intervals of 180 degrees, a structural action equivalent to a one-way overrunning clutch is formed, and in the process, the lock catch 5 is always attached to the lock hook 28 under the action of the wave-shaped elastic washer 25 and the disc spring 19, namely, the locking state of the locking device is always kept unchanged.

When the knob 11 is rotated reversely, the locker body retracts axially along the screw rod 3, when the lock catch 5 is separated from the lock hook 28, the tray bottom plate 29 and the chassis inner frame 27 are in an unlocking state, the locker can be pulled out from the chassis as a handle by slightly lifting the knob 11, the control module is checked or replaced in the unlocking process, along with the retraction of the nut 10, the axial pressure generated by the lock catch 5 on the wave-shaped elastic gasket 25 disappears, the overrunning clutch function disappears, and the lock catch 11 can be smoothly unlocked by reversely rotating the knob 11.

All parts of the novel locker provided by the invention are made of passivated stainless steel and high-strength aluminum alloy so as to meet the requirements of different applicable environments.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel locker, includes fixed block (1), its characterized in that: a screw rod (3) is arranged in the fixed block (1), a pin shaft (2) is arranged at one end of the screw rod (3), shaft elastic check rings (26) are arranged at two ends of the pin shaft (2), a guide block (4) is arranged on the surface of the screw rod (3), an oblate through hole is formed in the guide block (4), the screw rod (3) is arranged in the oblate through hole, a circular step hole is formed in the rear portion of the oblate through hole and matched with a half bearing (24), a shaft sleeve (9), a gasket (21) and a check ring A (6), a check ring B (20) is arranged in the shaft sleeve (9) at a position corresponding to the check ring A (6), a gasket A (7) and a gasket B (8) are arranged on the side face of the check ring B (20), a knob (11) is arranged outside the shaft sleeve (9), and a nut (10) is lapped on the end portion of the, the shaft sleeve (9), the nut (10) and the knob (11) are connected into a whole through two cylindrical pins (17), a semicircular groove is formed in the guide block (4), a lock catch (5) and a wave-shaped elastic washer (25) are arranged in the semicircular groove, the lock catch (5) is in lap joint with the wave-shaped elastic washer (25), the thread section of the screw rod (3) is matched with the nut (10), the nut (10) is an oblate connecting disc, two symmetrical small holes are formed in the oblate connecting disc and are matched with a sliding pin (16), clamp springs (18) are arranged at the top and the bottom of the screw rod (3), the clamp springs (18) are located in a through groove of the nut (10), the inner side of the clamp spring is tightly attached to the flat surface of the screw rod (3), a washer C (12) and a riveting ring (13) are arranged at one end of the nut (10), and a pressure spring (14) is arranged on the side surface of the washer C (, a disc spring (19) is arranged in the shaft sleeve (9).

2. The novel fastener of claim 1, wherein: the middle of the fixing block (1) is provided with a square hole penetrating through the cavity, and two side faces of the fixing block are provided with waist-shaped holes.

3. The novel fastener of claim 1, wherein: the screw rod (3) is a flat round body, the surface of the screw rod (3) is divided into a polished rod and a thread, the polished rod is located at the front end of the thread, and the polished rod is partially provided with a through hole.

4. The novel fastener of claim 1, wherein: the anterior one section of nut (10) is the screw, and screw length is less than half of nut (10) appearance length, screw rod (3) and nut (10) adaptation, the first half section shape of nut (10) connects the oblate for the disc, is equipped with two on the disc rear plane with the symmetry aperture of sliding pin (16) adaptation, the symmetry is seted up the recess and is run through with screw thread department on the flat both sides face of oblate, the degree of depth size that two recesses formed slightly is less than the plannar of screw rod (3), the latter half section shape of nut (10) is hollow cylinder, and its aperture slightly is greater than screw rod (3) external diameter, and a section external diameter of cylinder afterbody diminishes.

5. The novel fastener of claim 1, wherein: the screw (3) is matched with the nut (10) to form a larger pitch clearance.

6. The novel fastener of claim 1, wherein: the clamp spring (18) is made of a stainless steel spring steel wire, the diameter of the steel wire is slightly larger than the pitch of the screw rod (3) but smaller than the width of the two grooves in the front half section of the nut (10), and the size of the opening end of the clamp spring (18) is smaller than that of the arc end.

7. The novel fastener of claim 1, wherein: the inner arc surface of the lock catch (5) is matched with the outer arc surface of the lock hook (28), a special-shaped hole is formed in the plane, and the outer end of the plane extends for one section and is bent.

8. The novel fastener of claim 1, wherein: the gasket C (12) and the riveting ring (13) form a combined retainer ring, the gasket C (12) and the riveting ring (13) are respectively in self-centering fit with a conical surface and a conical hole to ensure that the two holes are coaxial, the other surface of the gasket C (12) is provided with an annular groove, and the other surface of the riveting ring (13) is provided with a step hole.

9. The novel load binder of claim 8, wherein: the structure with the function of the one-way overrunning clutch is composed of a main functional part, namely a screw rod (3), a nut (10), a guide block (4), a lock hook (28), a wave-shaped elastic washer (25), a clamp spring (18), a pressure spring (14) and a combined retainer ring, and the rest parts are auxiliary parts.

10. The novel fastener of claim 1, wherein: the half bearing (24), the shaft sleeve (9), the gasket (21), the washer A (7), the steel ball A (22) and the steel ball B (23) form a combined bearing which plays a role in the axial direction and the radial direction.