CN215208339U

CN215208339U - Integrated locking mechanism

Info

Publication number: CN215208339U
Application number: CN202121223213.2U
Authority: CN
Inventors: 李冬冬; 蒲苇; 岳波; 田贵川
Original assignee: People's Liberation Army No690 Factory
Current assignee: People's Liberation Army No690 Factory
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-17
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses an integration locking mechanism, include and install at the pipe box sub-assembly of every section pipe upper end with the axle center and install the retaining member at corresponding interior section pipe lower extreme, wherein, the pipe box sub-assembly includes pipe box, locking sub-assembly, lock post, and the up end of pipe box is provided with the lock post, and the lower terminal surface of pipe box is provided with the locking hole, the lock post adaptation of locking hole and outer section pipe box sub-assembly, the top in locking hole is provided with radial mounting groove, and the locking sub-assembly sets up in the radial mounting groove of pipe box. The locking structure between the locking mechanism and the outer joint pipe sleeve is an outer lock, the locking structure between the locking mechanism and the inner joint pipe sleeve is an inner lock, the outer lock and the inner lock are mutually related, the outer lock is unlocked when the inner lock is locked, the inner lock is unlocked when the outer lock is locked, and the telescopic rods are ensured to sequentially stretch out and draw back section by section, so that the safety and the reliability are realized.

Description

Integrated locking mechanism

Technical Field

The utility model relates to a multisection telescopic link field especially relates to an integration locking mechanism.

Background

The section-by-section lifting rod has a simple structure, is simple and convenient to operate, and is widely applied to the field of military and civil. In the prior art, chinese patent ZL 200920128959.8 discloses an automatic positioning lifting device, where an inner lock and an outer lock of a locking device of the lifting device are not associated with each other, and locking and unlocking actions of the inner lock and the outer lock are independent from each other, so that there are cases where the inner lock cannot be locked in time after the outer lock is unlocked, or the outer lock cannot be locked in time after the inner lock is unlocked, thereby causing serious faults such as collapse or non-sequential lifting of the lifting device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integration locking mechanism aims at solving interior lock and outer lock mutually unrelated in the current lifter locking mechanism technique, and the locking of interior lock and outer lock, unblock action are independent mutually, and the interior lock can not in time lock after the outer lock unblock, or the outer lock can not in time lock after the interior lock unblock, leads to the problem that the jacking equipment appears collapsing or goes up and down according to the order not.

In order to achieve the above object, the present invention provides an integrated locking mechanism, including a pipe sleeve structure coaxially mounted on the upper end of each pipe section and a locking member provided with a hole or a groove and mounted on the lower end of the corresponding inner pipe section, wherein the pipe sleeve structure includes a pipe sleeve, a locking assembly and a locking post, the upper end surface of the pipe sleeve is provided with the locking post, the upper end of the locking post is provided with the locking groove, the lower end surface of the pipe sleeve is provided with a locking hole, the locking hole is adapted to the locking post of the pipe sleeve assembly of the outer pipe section, a radial mounting groove is provided above the locking hole, and the locking assembly is disposed in the radial mounting groove of the pipe sleeve;

the locking assembly comprises a lock seat, an inner lock wheel, an outer lock wheel and a limiting pin, the inner lock wheel and the outer lock wheel are arranged in the lock seat in parallel, an inner lock groove and an inner interlocking groove are formed in the circumferential surface of the inner lock wheel, an outer lock groove and an outer interlocking groove are formed in the circumferential surface of the outer lock wheel, and the limiting pin is arranged among the inner lock wheel, the outer lock wheel and the lock seat.

The inner interlocking groove and the outer interlocking groove are of arc-shaped structures, the inner interlocking groove of the inner locking wheel is matched with the circumferential surface of the outer locking wheel, the outer interlocking groove of the outer locking wheel is matched with the circumferential side surface of the inner locking wheel, the circumferential surface of the outer locking wheel limits the inner locking wheel to rotate through the inner interlocking groove, and the circumferential surface of the inner locking wheel limits the outer locking wheel to rotate through the outer interlocking groove.

The lock hole of the locking piece is matched with the shape of the inner lock groove of the inner lock wheel, the lock groove at the upper end of the lock column is matched with the shape of the outer lock groove of the outer lock wheel, and the lock hole, the inner lock groove and the outer lock groove are in any one of a square shape, a circular arc shape and a dihedral angle shape.

The locking assembly further comprises at least one elastic element which enables the inner lock wheel and the outer lock wheel to rotate downwards in the lock groove, and the elastic element is any one of a torsion spring, a pressure spring and a leaf spring.

The beneficial effects of the utility model are embodied in: the outer lock part and the inner lock part of the locking mechanism are mutually associated, the outer lock is unlocked when the inner lock is locked, the inner lock is unlocked when the outer lock is locked, the telescopic rod is ensured to sequentially stretch out and draw back section by section, and the safety and the reliability are realized.

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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a pipe sleeve assembly according to the present invention.

Fig. 2 is a schematic structural view of the locking assembly of the present invention.

Fig. 3 is a cross-sectional view of the locking mechanism of the present invention.

Fig. 4 is a partial structural schematic diagram of the locking assembly of the present invention.

Fig. 5 is a schematic structural view of the locking member of the present invention.

Fig. 6 is a schematic structural view of the locking member of the present invention before it is in place.

Fig. 7 is a schematic structural view of the locking member of the present invention after it is in place.

The locking device comprises a pipe sleeve assembly 1, a locking member 2, a pipe sleeve 3, a locking assembly 4, a locking column 5, a locking hole 6, a radial mounting groove 7, a locking seat 8, an inner locking wheel 9, an outer locking wheel 10, an inner locking groove 11, an inner locking groove 12, an outer locking groove 13, an outer locking groove 14, an outer locking groove 15, an elastic element 16, a limiting pin 17, a limiting groove 18, a limiting groove 19, a through groove 20, a convex column 21, a notch 22 and a locking hole 22.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "at least one" means one or more unless specifically limited otherwise.

Referring to fig. 1 to 7, the present invention provides an integrated locking mechanism, which includes a pipe sleeve structure and a locking member 2 coaxially installed on each pipe joint, wherein the pipe sleeve assembly 1 includes a pipe sleeve 3, at least one locking assembly 4 and at least one locking post 5;

the upper end surface of the pipe sleeve 3 is provided with at least one lock cylinder 5 parallel to the axis of the pipe sleeve 3;

the lower end surface of the pipe sleeve 3 is provided with at least one locking hole 6 parallel to the axis of the pipe sleeve 3;

at least one radial installation groove 7 is arranged above the locking hole 6 of the pipe sleeve 3, and a locking assembly 4 is arranged in the radial installation groove 7.

The locking assembly 4 comprises a lock seat 8, an inner lock wheel 9, an outer lock wheel 10, an elastic element 16 and a limiting pin 17, the lock seat 8 is arranged in the radial installation groove 7, the inner lock wheel 9 and the outer lock wheel 10 are arranged in the lock seat 8 in parallel, an inner lock groove 11 and an inner lock groove 12 are formed in the inner lock wheel 9, an outer lock groove 13 and an outer lock groove 14 are formed in the outer lock wheel 10, and the inner lock groove 11 and the outer lock groove 13 are of circular arc-shaped structures.

The upper end of the lock cylinder 5 is provided with a lock groove 15 which is matched with the outer lock groove 13 of the outer lock wheel 10.

The locking assembly 4 comprises at least two elastic elements 16, at least one elastic element 16 is arranged between the inner lock wheel 9 and the lock base 8 and can enable the inner lock groove 11 to rotate downwards, and at least one elastic element 16 is arranged between the outer lock wheel 10 and the lock base 8 and can enable the outer lock groove 13 to rotate downwards.

The locking assembly 4 comprises at least two limit pins 17, one end of each limit pin 17 is fixedly arranged on the inner side wall of the lock seat 8,

the inner lock wheel 9 and the outer lock wheel 10 are both provided with arc-shaped limiting grooves 18, and the limiting pins 17 penetrate through the corresponding arc-shaped limiting grooves 18.

The locking piece 2 is provided with a locking hole 22 matched with the inner locking groove 11 of the inner locking wheel 9.

In this embodiment, the pipe sleeve structure includes the pipe sleeve assembly 1, at least one locking assembly 4 and at least one locking column 5, wherein the locking assembly 4 includes one locking seat 8, at least one inner locking wheel 9, at least one outer locking wheel 10, at least two limiting pins 17, at least two elastic elements 16, at least one locking column 5 parallel to the axis of the pipe sleeve 3 is disposed on the upper end surface of the pipe sleeve 3, at least one locking hole 6 parallel to the axis of the pipe sleeve 3 is disposed on the lower end surface of the pipe sleeve 3, at least one radial mounting groove 7 is disposed above the locking hole 6 of the pipe sleeve 3, and the locking assembly 4 is disposed in the radial mounting groove 7.

The inner lock wheel 9 and the outer lock wheel 10 are arranged in the lock seat 8 in parallel, an inner lock groove 11 and an inner interlocking groove 12 which are parallel to the axis of the inner lock wheel 9 are arranged on the inner lock wheel 9, an outer lock groove 13 and an outer interlocking groove 14 which are parallel to the axis of the outer lock wheel 10 are arranged on the outer lock wheel 10, the inner lock groove 11 and the outer lock groove 13 are arranged in a circular arc structure, the inner interlocking groove 12 of the inner lock wheel 9 can be matched with the circumferential surface of the outer lock wheel 10, and the outer interlocking groove 14 of the outer lock wheel 10 can be matched with the circumferential side surface of the inner lock wheel 9; a limiting pin 17 is arranged inside the lock seat 8, and an arc-shaped limiting groove 18 matched with the limiting pin 17 along the circumferential direction of the inner lock wheel 9 is arranged on the end surface of the inner lock wheel 9; the end surface of the external lock wheel 10 is provided with an arc-shaped limiting groove 18 which is matched with a limiting pin 17 along the circumferential direction of the external lock wheel 10; the elastic elements 16 which enable the corresponding inner lock grooves 11 and outer lock grooves 13 to rotate downwards are respectively arranged between the inner lock wheel 9 and the outer lock wheel 10 and the lock seat 8; the upper end of the lock cylinder 5 is provided with a lock groove 15 which is matched with the outer lock groove 13 of the outer lock wheel 10.

Through grooves 19 are symmetrically formed in two side walls of the lock base 8, the through grooves 19 are arranged and used for mounting elastic elements 16, convex columns 20 are symmetrically arranged on two side walls of the inner lock wheel 9 and the outer lock wheel 10, notches 21 are formed in the convex columns 20, and the notches 21 are used for mounting the elastic elements 16.

The theory of operation is as shown in fig. 6 and 7, chooses the continuous three section of telescopic link as the research object wantonly, simplifies it into and leans on the inner tube section, middle part tube coupling, leans on outer tube coupling, leans on the inner tube coupling installation retaining member 2, middle part tube coupling and lean on outer tube coupling installation tube nest of tubes subassembly 1.

The locking piece 2 is fixed at the bottom end of the inner pipe joint through a screw, the pipe sleeve assembly 1 is fixed at the top ends of the middle pipe joint and the outer pipe joint through a screw, the inner locking groove 11 on the inner locking wheel 9 is opened downwards under the action of the corresponding elastic element 16, the cylindrical surface of the inner locking groove is positioned in the outer interlocking groove 14 of the outer locking wheel 10, the outer locking groove 13 on the outer locking wheel 10 is opened upwards at the moment, the outer locking wheel 10 cannot rotate downwards, the pipe sleeve assembly 1 of the middle pipe joint and the outer pipe joint is in a locking initial state under the action of the locking column 5 and the outer locking wheel 10, and the middle pipe joint cannot be extended together by the inner pipe joint when the friction force is larger; when the inner joint pipe extends out, the locking part 2 pushes the inner locking groove 11 to rotate towards the upward direction of the opening under the action of the inclined plane until the inner locking groove 11 of the inner locking wheel 9 enters the locking hole 22 of the locking part 2, and simultaneously the lower end face of the locking hole 22 is contacted with the circumferential surface of the inner locking wheel 9, at this time, the opening of the inner locking wheel 9 rotates upwards by a certain angle, the inner interlocking groove 12 is overlapped with the circumferential surface of the outer locking wheel 10, and the outer locking wheel 10 can rotate to the downward direction of the opening under the action of the elastic element 16; the locking piece 2 drives the middle pipe joint provided with the pipe sleeve assembly 1 to continuously extend out through the circumferential surface of the inner locking wheel 9, the outer locking wheel 10 rotates for a certain angle under the action of the locking column 5 and the elastic element 16 on the pipe sleeve assembly 1 close to the outer pipe joint, the pipe sleeve assembly 1 of the middle pipe joint and the locking column 5 of the pipe sleeve assembly 1 close to the outer pipe joint are unlocked, then the cylindrical surface of the outer locking wheel 10 is positioned in the inner interlocking groove 12 of the inner locking wheel 9, the inner locking wheel 9 cannot rotate towards the downward direction of an opening of the inner locking groove, the locking piece 2 close to the inner pipe joint is locked with the inner locking wheel 9 of the middle pipe joint through the locking hole 22 and the inner locking groove 11, and the inner pipe joint is also reliably locked when gravity is large. The multi-section telescopic rod can extend out from inside to outside in a section-by-section sequence according to the actions, and in addition, when the telescopic rod retracts, the integrated locking mechanism executes the action in a reverse sequence.

The pipe shape of the pipe section can be round, square or polygonal, if the pipe which slides relatively is round, the corresponding pipe sleeve and the corresponding locking piece also need to be round; if the pipes which slide relatively are in special shapes, the corresponding pipe sleeves and locking pieces are also in special shapes.

The utility model provides a pair of integrated locking mechanism's external lock part and internal lock part are correlated with each other, and external lock unblock when the internal lock is locked, internal lock unblock when the external lock is locked guarantees that the telescopic link is flexible in the order of festival one by one, is particularly useful for the locking in place of multisection telescopic machanism, safe and reliable.

The utility model provides a current electric lift pole locking device structure complicated, degree of automation is low, and the reliability is lower, and it is big to account for the space size, and environmental suitability is relatively poor, and universalization, serialization degree are low, shortcoming such as with high costs. In addition the utility model discloses do not assault, the traction when not needing customization cast to realize multisection telescopic machanism to expand, automatic locking when targetting in place.

In conclusion, the outer lock part and the inner lock part of the locking mechanism are mutually associated, the outer lock is unlocked when the inner lock is locked, the inner lock is unlocked when the outer lock is locked, the telescopic rod is ensured to sequentially stretch out and draw back section by section, and the locking mechanism is safe and reliable.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. An integrated locking mechanism is characterized by comprising a pipe sleeve structure coaxially mounted at the upper end of each pipe section and a locking piece which is mounted at the lower end of the corresponding inner pipe section and provided with a hole or a groove, wherein the pipe sleeve structure comprises a pipe sleeve, a locking assembly and a locking column, the locking column is arranged on the upper end face of the pipe sleeve, the locking groove is arranged at the upper end of the locking column, a locking hole is arranged on the lower end face of the pipe sleeve and is matched with the locking column of the pipe sleeve assembly of the outer pipe section, a radial mounting groove is arranged above the locking hole, and the locking assembly is arranged in the radial mounting groove of the pipe sleeve;

2. The integrated locking mechanism of claim 1, wherein the inner and outer interlocking grooves are in the shape of circular arcs, the inner interlocking groove of the inner locking wheel is fitted with the circumferential surface of the outer locking wheel, the outer interlocking groove of the outer locking wheel is fitted with the circumferential side surface of the inner locking wheel, wherein the circumferential surface of the outer locking wheel restricts the rotation of the inner locking wheel by the inner interlocking groove, and the circumferential surface of the inner locking wheel restricts the rotation of the outer locking wheel by the outer interlocking groove.

3. The integrated locking mechanism according to claim 2, wherein the locking hole of the locking member is adapted to the shape of the inner locking groove of the inner locking wheel, the locking groove at the upper end of the locking column is adapted to the shape of the outer locking groove of the outer locking wheel, and the locking hole, the inner locking groove and the outer locking groove are in any one of a square shape, a circular arc shape and a dihedral shape.

4. The integrated locking mechanism of claim 3, wherein the locking assembly further comprises at least one elastic element for rotating the locking grooves of the inner and outer lock wheels downwards, and the elastic element is any one of a torsion spring, a compression spring and a leaf spring.