CN114687291A

CN114687291A - Locking method of mechanical bridge

Info

Publication number: CN114687291A
Application number: CN202210367545.0A
Authority: CN
Inventors: 佘玲娟; 付玲; 向世杰; 刘延斌; 尹莉
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-01

Abstract

The invention discloses a locking method of a mechanical bridge, which comprises the following steps: providing an inner sleeve (100) and rotatably sleeving a fixed leg (400) of the mechanical bridge, wherein the inner sleeve (100) can rotatably lock a movable leg (500) of the mechanical bridge; providing an outer sleeve (200) and sleeving the inner sleeve (100), wherein the outer sleeve (200) can drive the inner sleeve (100) to rotate automatically along the axial movement of the fixed support leg (400); driving the outer sleeve (200) to move axially so that the inner sleeve (100) and the movable leg (500) are locked or unlocked with each other. The operating personnel judges the shift position of corresponding inner tube locking teeth of a cogwheel through the axial displacement distance of audio-visual outer sleeve, and need not to judge whether the inner tube locking teeth of a cogwheel target in place according to the rotation of inner skleeve, has reduced the operation degree of difficulty under load operational environment, and can accurate quick completion locking operation.

Description

Locking method of mechanical bridge

Technical Field

The invention belongs to the field of engineering machinery, and particularly relates to a locking method of a mechanical bridge.

Background

Usually, in the process of erecting and withdrawing the bridge, the height of the mechanical bridge is adjusted by matching the locking device with the supporting legs. Therefore, the legs of the mechanical bridge are required to have strong adjusting capacity and stability.

In the existing supporting leg locking device of the mechanical bridge, an operator can rotate a driving gear by virtue of an auxiliary device to realize locking and releasing of the locking device, the operation is relatively complex, and the used time is long. When the locking device is in a loosening state, the gear teeth on the locking nut and the gear teeth on the lower column tube are required to be completely staggered, so that the smooth adjustment of the height of the supporting leg can be ensured, and the supporting leg is not clamped in the stretching process. In the locking state, the gear teeth on the locking nut and the gear teeth on the lower column tube need to be completely meshed as much as possible, so that the supporting leg can be ensured to have a better stress state; this has higher requirement to the angle control that the operating personnel rotated drive gear, simultaneously, because the vibration that appears in transportation and the process of erectting, leads to the lock nut probably to take place to rotate, makes landing leg regulation break down.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, the present invention provides a locking method for a mechanical bridge, which has a simple structure, is convenient to operate, and has high accuracy.

In order to achieve the above object, the present invention provides a method for locking a mechanical bridge, including:

providing an inner sleeve and rotatably sleeving the inner sleeve on a fixed supporting leg of the mechanical bridge, wherein the inner sleeve can rotatably lock a movable supporting leg of the mechanical bridge;

providing an outer sleeve and sleeving the outer sleeve on the inner sleeve, wherein the outer sleeve can drive the inner sleeve to rotate automatically along the axial movement of the fixed support leg;

and driving the outer sleeve to axially move so that the inner sleeve and the movable support leg are locked or unlocked mutually.

In some embodiments, one of a guide groove and a guide is provided on an outer circumferential wall of the inner sleeve, and the other of a guide groove and a guide is provided on an inner circumferential wall of the outer sleeve, wherein the guide is slidably mounted in the guide groove so that the outer sleeve can rotate with the inner sleeve when moving in the axial direction of the fixed leg.

In some embodiments, the guide groove is provided on an outer peripheral wall of the inner sleeve, wherein the guide groove is arranged in a rising spiral direction of the outer peripheral wall of the inner sleeve.

In some embodiments, the guide grooves include a first guide groove and a second guide groove, wherein the first guide groove and the second guide groove are circumferentially spaced apart along the outer peripheral wall of the inner sleeve.

In some embodiments, the method of locking a mechanical bridge further comprises:

the supporting leg locking gear teeth unit is arranged on the outer peripheral wall of the movable supporting leg and comprises a plurality of supporting leg locking gear teeth which are axially spaced, and locking grooves which are circumferentially arranged in an extending mode are formed between every two adjacent supporting leg locking gear teeth;

the inner circumferential wall of the inner sleeve is provided with inner sleeve locking gear teeth which are circumferentially extended and arranged, wherein the inner sleeve rotates to enable the inner sleeve locking gear teeth to be inserted into the corresponding locking grooves, so that the inner sleeve and the movable support leg are mutually locked.

In some embodiments, the inner barrel lock gear teeth are a plurality of sets, wherein the plurality of sets of inner barrel lock gear teeth are circumferentially spaced along the inner peripheral wall of the inner sleeve;

the supporting leg locking gear tooth units are arranged in multiple groups, wherein the multiple groups of supporting leg locking gear tooth units are circumferentially arranged along the peripheral wall of the movable supporting leg at intervals;

and the inner cylinder locking gear teeth and the supporting leg locking gear teeth are arranged in a one-to-one correspondence manner.

In some embodiments, two limit rings are arranged on the inner circumferential wall of the outer sleeve at an axial interval, wherein the inner circumferential wall of the outer sleeve and the limit rings jointly surround an inner sleeve mounting cavity which is defined to be axially through, and one end of the inner sleeve is mounted in the inner sleeve mounting cavity through a flange plate, so that the inner sleeve can axially move along the outer sleeve.

and a driving structure is provided and is fixedly arranged on the outer sleeve, wherein the driving structure is used for driving the outer sleeve to axially move.

In some embodiments, the driving structure is a straight rod, a rod limiting hole is formed in the straight rod, a plurality of component limiting holes are formed in the fixed leg at intervals, and the rod limiting hole and one of the component limiting holes jointly penetrate through a limiting rod.

In some embodiments, the driving structure is a telescopic rod, a rod fixing seat is arranged at one end of the telescopic rod, and a leg fixing seat is installed on the peripheral wall of the fixed leg, wherein the rod fixing seat and the leg fixing seat jointly penetrate through a fixed rod.

According to the technical scheme, in the locking method of the mechanical bridge, a combination mode of the inner sleeve and the outer sleeve is adopted, and the self-rotation of the inner sleeve can be driven through the axial movement of the outer sleeve, so that the inner sleeve and the movable supporting leg can be locked or separated from locking. Make the operating personnel through audio-visual axial displacement distance of outer sleeve, judge the shift position of corresponding inner tube locking teeth of a cogwheel, and need not to judge whether the inner tube locking teeth of a cogwheel target in place according to the rotation of inner skleeve, reduced the operation degree of difficulty under load operational environment, and can accurate quick completion locking operation.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide an 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 invention without limiting the invention. In the drawings:

FIG. 1 is a schematic, fragmentary, structural view of a mechanized bridge, showing an inner sleeve and an outer sleeve, according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of FIG. 1, taken at a different angle of view, showing a cross-sectional view A-A of the outer sleeve;

FIG. 3 is a front view of a bridge according to one embodiment of the present invention;

FIG. 4 is a front view of a robotic bridge according to another embodiment of the present invention;

FIG. 5 is a partial schematic structural view of FIG. 3 from a different perspective, showing the inner sleeve and the movable leg interlocked;

FIG. 6 is a partial schematic structural view of FIG. 4 from a different perspective, illustrating the inner sleeve being unlocked from the movable leg;

FIG. 7 is a partial schematic structural view of FIG. 6 showing the movable leg and leg locking gear teeth;

fig. 8 is a partial schematic structural view of fig. 3, showing the movable leg, the straight rod and the limiting rod.

Description of the reference numerals

100 inner sleeve 200 outer sleeve

300 fixed leg of guide transmission assembly 400

500 movable supporting leg

210 sleeve wall 220 retaining ring

310 guide groove 320 guide

610 straight rod 620 telescopic rod

1 inner cylinder locking gear tooth

3 landing leg locking teeth of a cogwheel 4 part spacing holes

5 stop lever 6 bolt

7 rack supporting plate 8 flange

9 handle

Detailed Description

The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.

Turning machine and excavator assembly lines according to the present invention are described below with reference to the accompanying drawings.

The invention firstly discloses a locking method of a mechanical bridge, which can lock the position of a telescopic supporting leg and is particularly suitable for the field of engineering machinery, such as the mechanical bridge and the like. In the following embodiments described with reference to the drawings, the locking method of the mechanical bridge is applied to the telescopic legs, and the telescopic legs are locked, which is described as an example.

As shown in fig. 1 to 8, in a specific embodiment, it is firstly known that a mechanical bridge includes a fixed leg 400 and a movable leg 500 nested inside and outside and slidably fitted in an axial direction, wherein the movable leg 500 can be flexibly pulled out or pushed in from the fixed leg 400, in order to realize the fixing of the position of the movable leg 500 on the fixed leg 400, that is, the locking of the movable leg 500, the present embodiment provides a locking method of the mechanical bridge, and the locking method of the mechanical bridge includes:

providing an inner sleeve 100 and rotatably sleeving the fixed leg 400 of the mechanical bridge, wherein the inner sleeve 100 can rotatably lock the movable leg 500 of the mechanical bridge; it will be appreciated that the inner sleeve 100 is of a sleeve-like construction and includes two axial ends, wherein one axial end is rotatably disposed over the fixed leg 400 and the other axial end extends beyond the fixed leg 400 and is disposed over the movable leg 500, such that rotation of the inner sleeve 100 locks the movable leg 500 in place.

Providing an outer sleeve 200 and sleeving the inner sleeve 100, wherein the outer sleeve 200 can drive the inner sleeve 100 to rotate automatically by moving along the axial direction of the fixed leg 400; it will be appreciated that the outer sleeve 200 is located outside the inner sleeve 100 and can have some freedom of movement in the axial direction of the fixed leg 400.

The outer sleeve 200 is driven to move axially so that the inner sleeve 100 and the movable leg 500 are locked or unlocked with each other. It can be understood that there may be a connection locking position state and a connection unlocking position state between the inner sleeve 100 and the movable leg 500, so that, in the connection unlocking position state, the inner sleeve 100 and the movable leg 500 may be unlocked from each other, and the movable leg 500 may extend out of the fixed leg 400, thereby implementing the telescopic adjustment of the legs in the mechanical bridge. In the connection locking position, the inner sleeve 100 and the movable leg 500 can be locked with each other, so that the fixed leg 400 and the movable leg 500 can be fixed in position, and the fixed leg 400 and the movable leg 500 can be locked with each other. Therefore, axial displacement through outer sleeve 200 can drive the circumferential direction of inner skleeve 100, can make inner skleeve 100 connect the locking position state and connect and switch between the unblock position state, make the operation personnel through audio-visual outer sleeve 200's axial displacement distance, can judge corresponding inner skleeve 100's shift position, and need not to judge whether it targets in place with activity landing leg 500 locking according to inner skleeve 100's rotation, reduced the operation degree of difficulty under load operational environment, and can accurate quick completion locking operation.

Alternatively, as for the structure of the inner sleeve 100 and the outer sleeve 200, both may be straight cylindrical structures, and the inner diameter of the outer sleeve 200 is larger than the outer diameter of the inner sleeve 100, so that the outer sleeve 200 is ensured to be able to move in the axial direction of the inner sleeve 100. With the axial movement of the outer sleeve 200, a part of the cylinder of the inner sleeve 100 can extend out of the outer sleeve 200, so that the mutual matching of the inner sleeve 100 and the outer sleeve 200 is ensured, the length of the cylinder wall of the outer sleeve 200 can be shortened, the production is convenient, and the cost is saved.

Alternatively, for the inner sleeve 100, a first locking member may be disposed inside the inner sleeve 100, and a second locking member adapted to the first locking member may be disposed on the surface of the movable leg 500, and the first locking member and the second locking member are engaged with each other when the movable leg is in the locked position, so as to lock the movable member. In the connection unlocking position state, the first locking member is misaligned with the second locking member, so that the movable leg 500 can move freely. It should be noted that the specific structures of the inner cylinder locking gear teeth 1 and the protrusions may be various, as long as the structures can be separated from each other and engaged with each other.

Alternatively, for the outer sleeve 200 moving along the fixed leg 400 in the axial direction to drive the inner sleeve 100 to rotate, for example, sliding rails may be installed on the inner circumferential wall of the outer sleeve 200, and pulleys cooperating with the sliding rails are provided on the outer circumferential wall of the inner sleeve 100. The sliding rails may be arranged on the outer sleeve 200 along a rising spiral direction, such that when the outer sleeve 200 moves axially, the corresponding sliding rails change in position to force the relative positions of the rollers on the sliding rails to change, and at the same time, the inner sleeve 100 is driven to rotate. In this way, it is possible to achieve that the axial movement of the outer sleeve 200 brings about a self-rotation of the inner sleeve 100.

Specifically, in one embodiment, to enable a self-rotating driving force to be generated to inner sleeve 100 during axial movement of outer sleeve 200, a guide drive assembly 300 may be provided in a motorized bridge, the guide drive assembly 300 comprising: a guide groove 310 and a guide 320. Specifically, one of the guide groove 310 and the guide 320 is provided on the outer circumferential wall of the inner sleeve 100, and the other of the guide groove 310 and the guide 320 is provided on the inner circumferential wall of the outer sleeve 200, wherein the guide 320 is slidably mounted in the guide groove 310, so that the outer sleeve 200 can drive the inner sleeve 100 to rotate when moving in the axial direction of the fixed leg 400. For example, the guide groove 310 is located on the outer sleeve 200, and the guide 320 is located on the inner sleeve 100; alternatively, the guide grooves 310 are formed on the inner sleeve 100 and the guide members 320 are formed on the outer sleeve 200, as shown in fig. 2, so that the driving connection between the outer sleeve 200 and the inner sleeve 100 is achieved by the cooperation of the guide members 320 and the guide grooves 310.

Further, as for the position of the guide 320, it may be installed on the outer sleeve 200, for example, the outer sleeve 200 may be formed with a radial through hole, the guide 320 protrudes from the radial through hole toward the inner sleeve 100, and the guide 320 is installed by the bolt 6 so that the guide 320 can roll along the groove track in the guide groove 310.

Further, as for the arrangement direction of the guide grooves 310, in one embodiment, the guide grooves 310 are provided on the outer circumferential wall of the inner sleeve 100, wherein the guide grooves 310 are arranged in the ascending spiral direction of the outer circumferential wall of the inner sleeve 100. As shown in fig. 2 and 4, it can be understood that the guide groove 310 may be an arc-shaped groove and formed with first and second ends for stopping the guide 320, the first and second ends being spaced apart in both axial and circumferential directions of the inner sleeve 100. In this way, the force of the axial movement of the outer sleeve 200 can be resolved into the force of the circumferential rotation of the inner sleeve 100, thereby achieving the fitting rotation of the inner sleeve 100. Meanwhile, the guide 320 can be stopped by the first end portion and the second end portion, and when the guide 320 is stopped at the first end portion and the second end portion, the guide 320 can be respectively corresponding to the states of mutual locking or unlocking of the inner sleeve 100 and the movable supporting leg 500, so that an operator can not judge whether the inner sleeve 100 rotates to the position, the operation can be completed by directly adjusting the axial position of the outer sleeve 200, and the locking operation difficulty is reduced.

In order to ensure that the inner sleeve 100 is stably rotated by the outer sleeve 200, the guide transmission assembly 300 may be plural, and in some embodiments, the guide grooves 310 include a first guide groove and a second guide groove, wherein the first guide groove and the second guide groove are circumferentially spaced along the outer circumferential wall of the inner sleeve 100. As shown in fig. 1 and 2. Corresponding guide members 320 are provided in both the first and second guide grooves, so that a plurality of force transmission points can be formed between the inner sleeve and the outer sleeve 200 to ensure stable rotation of the inner sleeve 100.

In order to realize the mutual locking or unlocking switching of the inner sleeve 100 and the movable leg 500, in an embodiment, the locking method of the mechanical bridge further comprises the following steps: providing a locking device, and providing a leg locking gear tooth unit on the peripheral wall of the movable leg 500, wherein the leg locking gear tooth unit comprises a plurality of leg locking gear teeth 3 which are axially spaced, and a locking groove which is circumferentially extended and arranged is formed between adjacent leg locking gear teeth 3, as shown in fig. 3 and 4; inner cylinder locking gear teeth 1 arranged to extend in the circumferential direction are provided on the inner circumferential wall of the inner sleeve 100, wherein the inner sleeve 100 is rotated to insert the inner cylinder locking gear teeth 1 into the corresponding locking grooves, so that the inner sleeve 100 and the movable leg 500 are locked to each other, as shown in fig. 1 and 6.

It will be appreciated that a plurality of leg locking teeth 3 are arranged axially of the outer peripheral wall of the movable leg 500, and that a locking groove is formed between respective adjacent leg locking teeth 3, the body of the locking groove being arranged along the circumferential extension of the outer peripheral wall of the movable leg 500. Correspondingly, inner cylinder locking gear teeth 1 are arranged on the inner circumferential wall of the inner sleeve 100, and the tooth body extension direction of the inner cylinder locking gear teeth 1 is consistent with the locking groove. Thus, when the inner sleeve 100 and the movable leg 500 are separated from the locking, the inner cylinder locking gear teeth 1 and the locking grooves are circumferentially spaced apart from each other along the outer peripheral wall of the movable leg 500, and at this time, the movable leg 500 can be freely pulled out from the fixed leg 400. When the inner sleeve 100 and the movable leg 500 are locked with each other, at this time, the inner cylinder locking gear teeth 1 rotate circumferentially and are inserted into the locking grooves, so that, in the axial direction of the movable leg 500, the inner cylinder locking gear teeth 1 are sandwiched between the adjacent leg locking gear teeth 3, so that the movable leg 500 has no degree of freedom in the axial direction, thereby realizing the locking of the movable leg 500 with respect to the fixed leg 400.

Further, in one embodiment, the inner cylinder locking gear teeth 1 are a plurality of sets, wherein the plurality of sets of inner cylinder locking gear teeth 1 are circumferentially spaced along the inner circumferential wall of the inner sleeve 100; the supporting leg locking gear tooth units are arranged in multiple groups, wherein the multiple groups of supporting leg locking gear tooth units are circumferentially arranged along the peripheral wall of the movable supporting leg 500 at intervals; the multiple groups of inner cylinder locking gear teeth 1 are arranged in one-to-one correspondence with the multiple groups of supporting leg locking gear teeth units. As shown in fig. 1 and 7, it can be understood that there may be multiple sets of locking structures between the inner sleeve 100 and the movable leg 500, and when the inner sleeve 100 and the movable leg 500 are unlocked, the inner cylinder locking gear teeth 1 are circumferentially spaced from the gear teeth units shown in the legs, so as to ensure smooth movement of the movable leg 500. When the inner sleeve 100 and the movable supporting leg 500 are mutually locked, a plurality of groups of inner cylinder locking gear teeth 1 are correspondingly inserted into the locking grooves of the corresponding supporting leg locking gear teeth units one by one, so that a plurality of force transmission points can be formed between the inner sleeve 100 and the movable supporting leg 500, and the stable locking of the movable supporting leg 500 is ensured.

Further, it can be understood that a gear tooth region and a non-gear tooth region are formed on both the inner circumferential wall of the inner sleeve 100 and the outer circumferential wall of the movable leg 500, wherein the gear tooth region is a region where the inner cylinder locking gear teeth 1 or the leg locking gear teeth unit is located. Correspondingly, when the locking device is in the connection unlocking position, as shown in fig. 5, the inner cylinder locking gear teeth 1 of the inner sleeve 100 correspond to the non-gear region of the movable leg 500, and the leg locking gear teeth 3 of the movable leg 500 correspond to the non-gear region of the inner sleeve 100. In the coupling lock position, as shown in fig. 6, inner cylinder lock gear teeth 1 of inner sleeve 100 correspond to leg lock gear teeth 3 of movable leg 500, and the non-gear region of movable leg 500 corresponds to the non-gear region of inner sleeve 100.

In one embodiment, the outer sleeve 200 includes a sleeve wall 210 and two position-limiting rings 220, and two position-limiting rings 220 are disposed on the inner circumferential wall of the outer sleeve 200 at intervals in the axial direction, wherein the inner circumferential wall of the outer sleeve 200 and the position-limiting rings 220 together surround an inner sleeve mounting cavity defining an axial through, and one end of the inner sleeve 100 is mounted in the inner sleeve mounting cavity through a sleeve mounting seat, so that the inner sleeve 100 can move axially along the outer sleeve 200. As shown in fig. 1 and 2, an axial end of the inner sleeve 100 is formed with an end edge extending radially outward, the cartridge holder includes a rack platform 7 and a flange 8, and the inner sleeve 100 is mounted on the rack platform 7 through the flange 8. This allows the inner sleeve 100 to have two degrees of freedom of axial movement and circumferential rotation within the outer sleeve 200. Meanwhile, the two limit rings 220 can respectively stop the flange 8 and the frame supporting plate 7, so that the end edge of the inner sleeve 100 can be always limited in the inner sleeve mounting cavity, and the running stability of the locking device is improved.

With respect to the manner of driving the outer sleeve 200, in one embodiment, the method of locking the bridge further comprises: a drive structure is provided and fixedly mounted on the outer sleeve 200, wherein the drive structure is configured to drive the outer sleeve 200 to move axially. It is understood that the driving structure can generate a pulling force or a pushing force to the outer sleeve 200, so as to drive the outer sleeve 200 to move axially. The driving mode of the driving structure can be electric driving, hydraulic driving or manual driving.

Specifically, in one embodiment, the driving structure is a straight rod 610, a rod limiting hole is disposed on the straight rod 610, and a plurality of component limiting holes 4 are disposed on the fixed leg 400 at intervals, wherein the rod limiting hole and one of the component limiting holes 4 jointly penetrate through the limiting rod 5. As shown in fig. 3 and 8, it can be understood that the inner sleeve corresponds to two position states of the outer sleeve 200 in the connection unlocking position and the connection locking position, and in order to ensure that the inner sleeve 100 can be locked in both the connection unlocking position and the connection locking position, it is necessary that the outer sleeve 200 can be positionally fixed relative to the fixed leg 400. The rod limiting hole can be connected and fixed with one of the plurality of part limiting holes 4 of the fixed leg 400 by the limiting rod 5, thereby adjusting the relative position of the outer sleeve 200 on the fixed leg 400. Therefore, the operation is performed manually, the operation is convenient, and the production and running cost is low.

In another embodiment, the driving structure is a telescopic rod 620, a rod fixing seat is disposed at one end of the telescopic rod 620, and a leg fixing seat is mounted on the outer peripheral wall of the fixed leg 400, wherein the rod fixing seat and the leg fixing seat jointly penetrate through the fixed rod. As shown in fig. 4. This telescopic link 620 can have stiff end and flexible end, and fixed end fixed mounting is on fixed landing leg 400, and flexible end fixed mounting is on outer sleeve 200, like this, can drive outer sleeve 200 axial displacement through telescopic link 620, accomplishes locking means's operation process, realizes the locking location of flexible landing leg.

In addition, a handle 9 may be provided on the fixed leg 400, so that the fixed leg 400 can be conveniently pulled to turn over or move into place.

As an example, the locking and unlocking process of the telescopic leg is described, taking as an example the specific steps from the connection unlocking position to the connection locking position between the inner sleeve 100 and the movable leg.

First, one side of the fixed leg 400 is defined as an axial upper end, one side of the movable leg 500 is defined as an axial lower end, and in an initial state, an unlocked state is formed between the fixed leg 400 and the movable leg 500 of the telescopic leg, as shown in fig. 3 and 5. That is, the guide 320 is located at the axially lower end of the guide groove 310, and the inner cylinder locking gear teeth 1 of the inner sleeve 100 correspond to the non-gear region of the movable leg 500.

At this time, the extending length of the movable supporting leg 500 on the fixed supporting leg 400 can be adjusted by the supporting leg oil cylinder, further, after the movable supporting leg 500 is adjusted in place, the outer sleeve 200 can be driven to move upwards in the axial direction by the axially upward pulling rod 610, at this time, along with the upwards movement of the outer sleeve 200, the guide member 320 continuously moves upwards along the guide groove 310, and the inner sleeve 100 is enabled to rotate automatically through the interaction between the guide member 320 and the guide groove 310. When the guide 320 runs to the axial top end of the guide groove 310, the inner cylinder locking gear teeth 1 of the inner sleeve 100 correspond to the leg locking gear teeth 3 of the movable leg 500, and the non-gear-tooth area of the movable leg 500 corresponds to the non-gear area of the inner sleeve 100, thereby achieving locking fixation of the fixed leg 400 and the movable leg 500. Meanwhile, the rod limiting hole of the straight rod 610 is circumferentially aligned with the part limiting hole 4 at the upper part of the fixed supporting leg 400 in the axial direction, and the position of the straight rod 610 on the fixed supporting leg 400 can be locked by penetrating the connecting rod limiting hole and the part limiting hole 4 through the limiting rod 5. The specific steps of the locking device from the connection locking position to the connection unlocking position are the reverse operation process, which is not described in detail herein.

In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are in fact significant. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A method of locking a mechanical bridge, comprising:

providing an inner sleeve (100) and rotatably sleeving a fixed leg (400) of the mechanical bridge, wherein the inner sleeve (100) can rotatably lock a movable leg (500) of the mechanical bridge;

providing an outer sleeve (200) and sleeving the inner sleeve (100), wherein the outer sleeve (200) can drive the inner sleeve (100) to rotate automatically along the axial movement of the fixed support leg (400);

driving the outer sleeve (200) to move axially so that the inner sleeve (100) and the movable leg (500) are locked or unlocked with each other.

2. The mechanical bridge locking method according to claim 1, wherein one of a guide groove (310) and a guide (320) is provided on an outer circumferential wall of the inner sleeve (100), and the other of the guide groove (310) and the guide (320) is provided on an inner circumferential wall of the outer sleeve (200), wherein the guide (320) is slidably mounted in the guide groove (310) so that the outer sleeve (200) can drive the inner sleeve (100) to rotate by itself when moving in the axial direction of the fixed leg (400).

3. The mechanical bridge locking method according to claim 2, wherein the guide groove (310) is provided on the outer peripheral wall of the inner sleeve (100), wherein the guide groove (310) is arranged in a rising spiral direction of the outer peripheral wall of the inner sleeve (100).

4. The mechanical bridge locking method according to claim 3, wherein the guide grooves (310) comprise a first guide groove and a second guide groove, wherein the first guide groove and the second guide groove are circumferentially spaced along the outer peripheral wall of the inner sleeve (100).

5. The method for locking a mechanical bridge according to any one of claims 1 to 4, further comprising:

a support leg locking gear tooth unit is arranged on the outer peripheral wall of the movable support leg (500) and comprises a plurality of support leg locking gear teeth (3) which are axially spaced, wherein locking grooves which are arranged in a circumferential extending mode are formed between the adjacent support leg locking gear teeth (3);

inner barrel locking gear teeth (1) which are arranged in a circumferential extending mode are arranged on the inner circumferential wall of the inner barrel (100), wherein the inner barrel (100) can be rotated to enable the inner barrel locking gear teeth (1) to be inserted into the corresponding locking grooves, so that the inner barrel (100) and the movable supporting leg (500) are locked with each other.

6. The method of locking a mechanical bridge according to claim 5, wherein the inner cylinder locking gear teeth (1) are provided in a plurality of sets, wherein the plurality of sets of inner cylinder locking gear teeth (1) are circumferentially spaced along the inner circumferential wall of the inner sleeve (100);

the supporting leg locking gear tooth units are arranged in multiple groups, wherein the multiple groups of supporting leg locking gear tooth units are circumferentially arranged along the peripheral wall of the movable supporting leg (500) at intervals;

the inner cylinder locking gear teeth (1) and the supporting leg locking gear teeth are arranged in a one-to-one correspondence mode.

7. The mechanical bridge locking method according to claim 5, wherein two axially spaced limiting rings (220) are arranged on the inner peripheral wall of the outer sleeve (200), wherein the inner peripheral wall of the outer sleeve (200) and the limiting rings (220) jointly surround an inner sleeve mounting cavity which defines an axial through, and one end of the inner sleeve (100) is mounted in the inner sleeve mounting cavity through a sleeve mounting seat, so that the inner sleeve (100) can axially move along the outer sleeve (200).

8. The method of locking a mechanical bridge of claim 5, further comprising:

a drive structure is provided and fixedly mounted on the outer sleeve (200), wherein the drive structure is used for driving the outer sleeve (200) to axially move.

9. The mechanical bridge locking method according to claim 8, wherein the driving structure is a straight rod (610), a rod limiting hole is formed in the straight rod (610), a plurality of component limiting holes (4) are formed in the fixed leg (400) at intervals, and a limiting rod (5) is jointly connected with one of the component limiting holes (4) through the rod limiting holes.

10. The mechanical bridge locking method according to claim 8, wherein the driving structure is a telescopic rod (620), a rod fixing seat is arranged at one end of the telescopic rod (620), and a leg fixing seat is arranged on the peripheral wall of the fixed leg (400), wherein the rod fixing seat and the leg fixing seat are jointly connected with a fixing rod in a penetrating way.