CN113753272B - General handle available outside spacecraft cabin - Google Patents

Abstract

The present application provides a general handle usable outside of a spacecraft cabin, comprising: the handrail is convenient for the astronaut to hold; a first locking assembly mounted on the armrest; the base, with first locking component can dismantle the connection, the base is used for with treating mobile device fixed connection. The utility model provides a general handle that astronaut extravehicular is available includes the handrail, installs first locking component on the handrail and can dismantle the base of being connected with first locking component, when using, at first with base fixed mounting on treating the mobile device, then be connected handrail and base locking through first locking component to the astronaut is in the handheld handrail of in-orbit accessible and is treated the mobile device and shift, prevents that equipment from drifting.

Description

General handle available outside spacecraft cabin

Technical Field

The application relates to the technical field of auxiliary tools for the deporter to go out of a cabin for maintenance, in particular to a universal handle available outside a cabin of a deporter.

Background

In order to ensure the long-term on-orbit stable operation of the space station, the space station is provided with an extravehicular maintenance tool, so that the extravehicular equipment can be maintained or replaced by a spaceman in a state of being worn by a spacesuit. In order to facilitate the equipment to be replaced to be transferred outside the cabin along with the astronaut, a transfer interface which can be gripped by the astronaut needs to be arranged on the equipment, however, most of the equipment cannot provide enough gripping space due to structural limitation, and certain difficulty is caused for the astronaut to transfer the equipment outside the cabin. To this end, the present application provides a universal handle usable outside of the spacecraft cabin.

Disclosure of Invention

The object of the present application is to address the above problems and provide a universal handle usable outside the cabin of an astronaut.

The present application provides a general handle usable outside of a spacecraft cabin, comprising: the handrail is convenient for the astronaut to hold; a first locking assembly mounted on the armrest; the base, with first locking component can dismantle the connection, the base is used for with treating mobile device fixed connection.

According to an aspect provided by some embodiments of the present application, the first locking assembly includes a fulcrum; one end of the supporting cylinder is fixedly connected with the handrail, and a plurality of first limiting lugs are annularly distributed on the edge of the inner side wall of the other end of the supporting cylinder; a first inserting gap is formed between every two adjacent first limiting lugs; second limiting lugs which are in one-to-one correspondence with the first limiting lugs are annularly distributed on the inner side wall of the supporting cylinder; a sliding channel is formed between every two adjacent second limiting lugs; a directional anti-falling sleeve is arranged in the branch cylinder; sliding teeth which are in one-to-one correspondence with the sliding channels are annularly distributed on the edge of one end of the directional anti-falling sleeve, and a first elastic piece is arranged between the other end of the directional anti-falling sleeve and the handrail; the sliding teeth can slide along the sliding channel; a second inserting gap is formed between every two adjacent sliding teeth; the second limiting lug is slidably inserted into the second insertion notch; a plurality of inserting lugs are annularly arranged on the base; the insertion lug can be inserted from the first insertion notch; a first strip-shaped long hole is formed in the side wall of the support cylinder; a side deflector rod is movably arranged in the first strip-shaped long hole in a penetrating way; one end of the side shifting rod is fixedly connected with the directional anti-falling sleeve.

According to the technical scheme provided by some embodiments of the application, a second locking assembly is arranged at one end, relatively far away from the directional anti-falling sleeve, of the first elastic piece; the second locking assembly includes: the device comprises an outer clamping sleeve, a movable clamping sleeve, a pressing assembly and a rotating assembly; the outer clamping sleeve is fixed in the support cylinder; the movable clamping sleeve is connected in the outer clamping sleeve through a limiting mechanism; the limiting mechanism is used for limiting the movable cutting sleeve to move along the axial direction of the outer cutting sleeve; the pressing component is arranged at one end of the movable clamping sleeve, which is relatively far away from the first elastic piece; one end of the movable cutting sleeve, which is relatively far away from the pressing component, is provided with a circle of indexing claws; the rotating component is provided with a contact inclined plane matched with the indexing claw; the end face of one end of the outer cutting sleeve, which is relatively far away from the pressing component, is provided with shallow grooves and deep grooves which are arranged in a staggered mode in sequence; the shallow groove and the deep groove can be respectively clamped with the rotating assembly; when pressing down the pressure subassembly makes the runner assembly with when outer cutting ferrule breaks away from the joint, the runner assembly is in the graduation claw with under the effect on contact inclined plane, can wind the axis direction of outer cutting ferrule rotates, in order to realize the runner assembly is in the deep trouth with switching joint between the shallow slot.

According to the technical scheme provided by some embodiments of the application, the limiting mechanism comprises two circular through holes symmetrically arranged on the outer cutting sleeve and two second strip-shaped long holes symmetrically arranged on the movable cutting sleeve; the length direction of the second strip-shaped long hole is parallel to the axial direction of the outer cutting sleeve; and the outer cutting sleeve is movably connected with the movable cutting sleeve by penetrating a pin shaft through the two circular through holes and the two second strip-shaped long holes.

According to the technical scheme provided by some embodiments of the application, the pressing assembly comprises a button and a second elastic piece connected with the button.

According to an aspect provided by some embodiments of the present application, the base includes a base body; a plurality of mounting lugs are annularly distributed at the bottom of the base body; and each mounting lug is provided with a connecting through hole for connecting with a device to be moved.

According to the technical scheme provided by some embodiments of the application, the handrail is provided with a quick locking pin for being quickly installed with an extravehicular maintenance auxiliary tool.

According to the technical scheme provided by some embodiments of the application, a plurality of lightening holes are formed in the handrail.

Compared with the prior art, the beneficial effect of this application: this general handle that astronaut extravehicular is available includes the handrail, installs first locking Assembly on the handrail and can dismantle the base of being connected with first locking Assembly, when using, at first with base fixed mounting on treating the mobile device, then be connected handrail and base locking through first locking Assembly to the mobile device is treated to the handheld handrail of astronaut in-orbit accessible, prevents that equipment from drifting. In some embodiments of the application, in order to avoid accidental falling of the device to be moved, a second locking assembly is further arranged and used for locking the general handle for the second time, and when the general handle is operated by a astronaut to transfer the device to be transferred, the second locking assembly is arranged to be beneficial to ensuring the reliability of connection between the general handle and the device to be transferred.

Drawings

Fig. 1 is a schematic structural diagram of a universal handle usable outside a cabin of an astronaut according to an embodiment of the present application;

FIG. 2 is an exploded view of a first locking assembly of a universal handle usable outside of a spacecraft cabin in accordance with an embodiment of the present disclosure;

FIG. 3 is a cross-sectional structural schematic view of a first locking assembly of a universal handle usable outside of an aircraft cabin provided in an embodiment of the present application;

FIG. 4 is a schematic front view of a base of a universal handle usable outside of a spacecraft cabin according to an embodiment of the present disclosure;

fig. 5 is a schematic perspective view of a base of a universal handle usable outside a cabin of an astronaut according to an embodiment of the present application;

6-1-6-4 are schematic diagrams of a first locking assembly and a base locking process of a universal handle usable outside a spacecraft cabin according to an embodiment of the present application;

FIG. 7 is an exploded view of a second locking assembly of a universal handle usable outside of a spacecraft cabin in accordance with an embodiment of the present application;

FIG. 8 is a cross-sectional structural schematic view of a second locking assembly of a universal handle usable off-board a spacecraft as provided in an embodiment of the present application;

9-1-9-3 are schematic diagrams of a locking process for a second locking assembly of a universal handle usable outside of a spacecraft cabin provided in an embodiment of the present application;

fig. 10-1-10-3 are schematic diagrams of an unlocking process of a second locking assembly of a universal handle available outside a spacecraft cabin according to an embodiment of the application.

The text labels in the figures are represented as:

1. a handrail; 101. a quick locking pin; 102. lightening holes;

2. a first locking assembly; 201. supporting a cylinder; 202. a first limit bump; 203. a second limit bump; 204. directional anti-drop sleeve; 205. a sliding tooth; 206. a first bar-shaped long hole; 207. a side deflector rod; 208. a first elastic member;

3. a base; 301. a base body; 302. installing a lug; 303. a connecting through hole; 304. inserting an end socket; 305. inserting the projection;

4. a second locking assembly; 401. fixing a sleeve; 402. an outer ferrule; 403. moving the cutting sleeve; 404. a pin shaft; 405. a button; 406. a second elastic member; 407. clamping a shaft; 408. a clamping block; 409. a cone end screw; 410. and a limiting block.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1, the present embodiment provides a universal handle for use outside of a cabin of an astronaut, including: an armrest 1, a first locking assembly 2 and a base 3.

The handrail 1 is of a rectangular frame structure, is convenient for an astronaut to hold, and each edge and each corner of the handrail 1 are subjected to fillet treatment, so that the handrail has an anti-skidding function and meets the requirements of the astronaut on the work efficiency and the size after the astronaut wears the space suit.

Referring to fig. 2 and 3, the first locking member 2 is mounted on the armrest 1 and detachably connected to the base 3; the first locking assembly 2 comprises a hollow stem 201; the supporting tube 201 is provided with a cylindrical section, one end of the supporting tube 201 is fixedly connected with one longer side of the handrail 1, and a plurality of first limiting lugs 202 are annularly distributed on the edge of the inner side wall at the other end; a first insertion gap is formed between two adjacent first limiting convex blocks 202; second limiting lugs 203 which are in one-to-one correspondence with the first limiting lugs 202 are annularly distributed on the inner side wall of the supporting cylinder 201; a sliding channel is formed between two adjacent second limiting lugs 203; the connecting line of the corresponding pair of first limiting convex blocks 202 and the second limiting convex blocks 203 is parallel to the central axis of the support tube 201, and a certain accommodating gap is formed between the corresponding first limiting convex blocks 202 and the corresponding second limiting convex blocks 203; in this embodiment, there are eight first limiting protrusions 202 and eight second limiting protrusions 203, and in other embodiments of the present application, the first limiting protrusions 202 and the second limiting protrusions 203 may be provided in other numbers.

A directional anti-falling sleeve 204 is arranged in the branch cylinder 201; the directional anti-falling sleeve 204 is cylindrical and is arranged coaxially with the support cylinder 201; the edge of one end of the directional anti-drop sleeve 204 is annularly distributed with sliding teeth 205 which are in one-to-one correspondence with the sliding channels, and a first elastic piece 208 is arranged between the other end of the directional anti-drop sleeve and the handrail 1; the first elastic member 208 is a spring; the length of the sliding tooth 205 is greater than that of the second limit bump 203; the number of the sliding teeth 205 is the same as the number of the sliding channels, that is, the number of the second limiting protrusions 203, and in this embodiment, a total of eight sliding teeth 205 are provided; the sliding teeth 205 can slide along the sliding channels at the corresponding positions; a second insertion gap is formed between two adjacent sliding teeth 205; the second limiting bump 203 is slidably inserted into the second insertion notch at the corresponding position.

The side wall of the support tube 201 is provided with at least one first strip-shaped long hole 206; the length direction of the first long bar-shaped hole 206 is parallel to the axial direction of the support tube 201; in this embodiment, a total of two first bar-shaped long holes 206 symmetrically arranged about the axis of the support 201 are formed in the side wall of the support 201; a side deflector rod 207 is movably arranged in each first elongated hole 206 in a penetrating way; the side shift lever 207 comprises a first connecting rod, a second connecting rod and a third connecting rod which are sequentially connected, wherein the first connecting rod and the third connecting rod are respectively and vertically connected to two ends of the second connecting rod and respectively extend in opposite directions from the second connecting rod; the first connecting rod is vertically inserted into the support tube 201 from the first elongated slot 206 and is fixedly connected with the directional anti-drop sleeve 204.

In a natural state (i.e. without external force, that is, the first elastic element 208 is in a non-stretched and non-compressed state), the first link of the side shift lever 207 is located on a side of the corresponding first elongated slot 206 relatively far from the armrest 1, the sliding tooth 205 is located in the corresponding sliding channel, an end of the second limiting protrusion 203 relatively far from the first limiting protrusion 202 abuts against the second insertion notch, and at this time, an end of the sliding tooth 205 relatively far from the armrest 1 protrudes from the sliding channel.

When the third link of the side shift lever 207 is shifted to the side relatively close to the handrail 1, the first link of the side shift lever 207 moves correspondingly to the direction close to the handrail 1 along the first elongated slot 206, so as to drive the directional anti-slip sleeve 204 to move to the side relatively close to the handrail 1, the sliding tooth 205 moves to the side relatively close to the handrail 1 along the sliding channel, and the first elastic element 208 is gradually compressed; when the third link of the side shift lever 207 is shifted to the end of the first elongated slot 206 relatively close to the armrest 1, the end of the sliding tooth 205 relatively far from the armrest 1 is located in the sliding channel, i.e., between the two second limit protrusions 203; when the third link of the side lever 207 is released, the directional anti-release sleeve 204 moves to a side relatively far away from the armrest 1 under the elastic restoring force of the first elastic member 208, and the first locking assembly 2 gradually restores to the natural state.

Referring to fig. 4 and 5, the base 3 is used for being fixedly connected with a device to be moved; the base 3 comprises a cylindrical base body 301; a plurality of mounting lugs 302 are annularly distributed at the bottom of the base body 301, each mounting lug 302 is provided with a connecting through hole 303 for connecting with a device to be moved, and when the base 3 is used, the base can be mounted on a surface to be mounted of the device to be moved through the connecting through holes 303, screws and gaskets; in this embodiment, four mounting tabs 302 are provided, and in other embodiments of the present application, other numbers of mounting tabs 302 may be provided as needed; the top of the base body 301 is provided with a truncated cone-shaped insertion end 304 which is convenient for being inserted into the first locking component 2; a plurality of inserting lugs 305 are annularly distributed on the outer side wall of the base body 301; the insertion convex block 305 serves as an interface for matching the support tube 201 with the directional anti-release sleeve 204, and the insertion convex block 305 can be inserted into the support tube 201 from the first insertion notch; the length of the plugging convex block 305 is slightly smaller than the distance between the corresponding first limit convex block 202 and the second limit convex block 203.

The number of the plugging bumps 305 is less than or equal to the number of the first plugging notches, in this embodiment, the number of the first plugging notches is eight, the number of the plugging bumps 305 is four, and in other embodiments of the present application, other numbers of the plugging bumps 305 may be set as needed.

Referring to fig. 6-1 to 6-4, the process of locking the armrest 1 with the base 3 by the first locking assembly 2 is as follows: firstly, aligning the first insertion notch on the support barrel 201 of the first locking component 2 with the insertion bump 305 on the base 3, then gradually pressing the first locking component 2 towards the base 3, and gradually contacting the sliding tooth 205 with the insertion bump 305 on the base 3, as shown in fig. 6-1; with further pressing of the first locking element 2, the sliding tooth 205 slides along the sliding channel between two adjacent second limiting protrusions 203 toward the direction relatively close to the armrest 1 under the pressing action of the insertion protrusion 305, and when the supporting cylinder 201 abuts against the mounting tab 302 at the bottom of the base 3, the end of the sliding tooth 205 relatively far away from the armrest 1 is located in the sliding channel, i.e., between two adjacent second limiting protrusions 203, as shown in fig. 6-2; after the armrest 1 is slightly rotated by about 22.5 degrees (the rotation direction is not required), the second limit protrusions 203 and the first limit protrusions 202 are respectively aligned with the insertion protrusions 305 on the base 3, i.e. the insertion protrusions 305 are located between a group of the first limit protrusions 202 and the second limit protrusions 203, as shown in fig. 6-3; under the action of the elastic restoring force of the first elastic member 208, the directional anti-slip cover 204 moves to the side relatively far away from the armrest 1, the sliding teeth 205 move to the side relatively far away from the armrest 1 along the sliding channel, and four sides of the insertion projection 305 on the base 3 are respectively limited by the first limiting projection 202, the second limiting projection 203 and the two sliding teeth 205, so that the locking of the armrest 1 and the base 3 is completed, as shown in fig. 6-4.

When the unlocking is needed, the third connecting rod of the side shifting rod 207 is shifted to the side relatively close to the armrest 1 to the limit position and is kept, the side shifting rod 207 can drive the directional anti-drop sleeve 204 to move in the direction relatively close to the armrest 1, the sliding teeth 205 slide into the two sliding channels gradually, after the armrest 1 is slightly rotated for about 22.5 degrees (the rotating direction does not have requirements), the insertion lug 305 on the base 3 is separated from the limitation, the armrest 1 is slowly and upwards pulled out, the base can be easily taken out from the first insertion notch on the support cylinder 201, and the unlocking of the armrest 1 and the base 3 is completed.

Further, the universal handle available outside the spacecraft cabin further comprises a second locking assembly 4, please refer to fig. 7 and 8, wherein the second locking assembly 4 is arranged at one end of the first elastic piece 208 relatively far away from the directional anti-falling sleeve 204; the second locking assembly 4 comprises: a fixed sleeve 401, an outer sleeve 402, a movable sleeve 403, a pressing component and a rotating component.

The supporting cylinder 201, the fixed sleeve 401, the outer cutting sleeve 402 and the movable cutting sleeve 403 are coaxially arranged; the supporting cylinder 201 is fixedly sleeved outside the fixed sleeve 401, the fixed sleeve 401 is fixedly sleeved outside the outer clamping sleeve 402, the outer clamping sleeve 402 is movably sleeved outside the movable clamping sleeve 403 through a limiting mechanism, and the limiting mechanism is used for limiting the movable clamping sleeve 403 to rotate, so that the movable clamping sleeve 403 can only move up and down along the axial direction of the outer clamping sleeve 402 and limiting the up-and-down movement range of the movable clamping sleeve; specifically, the limiting mechanism comprises two circular through holes symmetrically arranged on the outer cutting sleeve 402 and two second long bar-shaped holes symmetrically arranged on the movable cutting sleeve 403, and the length direction of the second long bar-shaped holes is parallel to the axial direction of the outer cutting sleeve 402; the outer cutting sleeve 402 and the movable cutting sleeve 403 are movably connected by passing a pin shaft 404 through the two circular through holes and the two second elongated holes, and in addition, the fixed connection between the support cylinder 201 and the fixed sleeve 401 and the outer cutting sleeve 402 is also realized by the pin shaft 404.

The pressing component is arranged at one end of the movable sleeve 403 relatively far away from the first elastic piece 208, and comprises a button 405 and a second elastic piece 406 connected to the button 405, and the second elastic piece 406 is a spring; the handrail 1 is provided with a hole for the button 405 to pass through, and the second elastic piece 406 is arranged, so that the button 405 can rebound after the button 405 is pressed, and the next pressing is facilitated.

A circle of indexing claws are uniformly distributed on the end face of one end of the movable clamping sleeve 403 relatively far away from the pressing component; shallow grooves and deep grooves which are sequentially arranged in a staggered mode are formed in the end face, far away from the pressing component, of one end of the outer clamping sleeve 402.

The rotating assembly comprises a clamping shaft 407, a clamping block 408 and a conical end screw 409; wherein the clamping shaft 407 further comprises an upper clamping shaft section and a lower clamping shaft section.

The lower section of the clamping shaft is a cylindrical section, the outer diameter of the cylindrical section is slightly smaller than the inner diameter of the directional anti-release sleeve 204, the cylindrical section can extend into the directional anti-release sleeve 204, grooves which can be abutted against the first elastic piece 208 are respectively arranged in the cylindrical section and the directional anti-release sleeve 204, namely, two ends of the first elastic piece 208 are respectively abutted against the lower section of the clamping shaft and the directional anti-release sleeve 204 but are not fixedly connected; the latch shaft 407 is rotatable relative to the directional anti-slip cover 204.

The upper section of the clamping shaft also comprises a cylindrical section, and the outer diameter of the cylindrical section is smaller than that of the lower section of the clamping shaft; the clamping block 408 is in a rectangular plate shape, penetrates through the upper section of the clamping shaft and is fixed with the upper section of the clamping shaft through a taper end screw 409, the top of the part, extending out of the upper section of the clamping shaft, of the clamping block 408 is provided with a contact inclined plane matched with the indexing claw, and the thickness of the clamping block 408 is smaller than the width of the deep groove in the outer clamping sleeve 402.

The upper section of the clamping shaft is circumferentially provided with a circle of limiting grooves along the outer wall of the clamping shaft; a limiting block 410 matched with the limiting groove is arranged in the movable clamping sleeve 403; the limiting block 410 and the limiting groove are used in cooperation, and are used for limiting the displacement range of the movable clamping sleeve 403 moving up and down relative to the clamping shaft 407.

The second locking assembly 4 has a secondary locking function, and the second locking assembly 4 can prevent the device to be moved from falling off due to the fact that the side shift lever 207 is touched carelessly. Referring to fig. 9-1 to 9-3, the secondary locking process is as follows: firstly, the button 405 is pressed downwards, so that the indexing claws on the movable clamping sleeve 403 are in contact with the contact inclined surfaces on the fixture blocks 408, and the fixture blocks 408 are positioned in the deep grooves on the outer clamping sleeve 402 and limited by the deep grooves of the outer clamping sleeve 402 and can only move along a straight line, as shown in fig. 9-1; when the latch 408 is removed from the deep groove of the outer sleeve 402, the latch shaft 407 rotates under the action of the indexing claws of the movable sleeve 403 and the contact inclined surface of the latch 408, as shown in fig. 9-2; when the latch shaft 407 rotates, the latch 408 also rotates, and during the rotation process, the latch is caught by the shallow groove of the outer sleeve 402 to stop rotating, so as to realize secondary locking, as shown in fig. 9-3.

Referring to fig. 10-1 to 10-3, the unlocking process of the secondary locking is as follows: before unlocking, the fixture block 408 is clamped in the shallow groove of the outer fixture sleeve 402, as shown in fig. 10-1; pressing the button 405 downward to make the indexing claws on the movable ferrule 403 contact with the contact slopes on the latch block 408, and the latch shaft 407 rotates under the action of the indexing claws of the movable ferrule 403 and the contact slopes of the latch block 408, as shown in fig. 10-2; when the latch shaft 407 rotates, the latch 408 rotates, and during the rotation, it is caught by the deep groove of the outer clip 402 to stop rotating, and moves upward along the deep groove, so as to unlock the lock, as shown in fig. 10-3.

Furthermore, the handrail 1 is provided with a quick locking pin 101 for being quickly installed with an extravehicular maintenance auxiliary tool, and when the handrail is used, a general handle available outside the cabin of the astronaut can be fixed on an extravehicular operating platform through the quick locking pin 101.

Furthermore, a plurality of lightening holes 102 are arranged on the handrail 1.

When the universal handle used outside the cabin of the astronaut comprises the handrail, the first locking component arranged on the handrail and the base detachably connected with the first locking component, the base is fixedly arranged on the equipment to be moved firstly, and then the handrail and the base are connected in a locking mode through the first locking component, so that the astronaut can transfer the equipment to be moved through the handheld handrail in orbit and prevent the equipment from drifting; in addition, in order to avoid the mobile equipment to fall off accidentally, a second locking assembly is further arranged and used for locking the general handle for the second time, and when the astronaut operates the general handle to transfer the equipment to be transferred, the second locking assembly is arranged to be beneficial to ensuring the reliability of connection between the general handle and the equipment to be transferred.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are no specific structures which are objectively limitless due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the technical features mentioned above can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other instances, which may or may not be practiced, are intended to be within the scope of the present application.

Claims (7)

1. A universal handle usable outboard of an astronaut, comprising:

the handrail (1) is convenient for astronauts to hold;

a first locking assembly (2), the first locking assembly (2) being mounted on the armrest (1);

the base (3) is detachably connected with the first locking component (2), and the base (3) is used for being fixedly connected with equipment to be moved;

the first locking assembly (2) comprises a support cylinder (201); one end of the supporting tube (201) is fixedly connected with the handrail (1), and a plurality of first limiting lugs (202) are annularly distributed on the edge of the inner side wall of the other end; a first inserting gap is formed between every two adjacent first limiting convex blocks (202); second limiting lugs (203) which are in one-to-one correspondence with the first limiting lugs (202) are annularly distributed on the inner side wall of the support tube (201); a sliding channel is formed between two adjacent second limiting lugs (203); a directional anti-falling sleeve (204) is arranged in the supporting cylinder (201); sliding teeth (205) which are in one-to-one correspondence with the sliding channels are annularly distributed on the edge of one end of the directional anti-falling sleeve (204), and a first elastic piece (208) is arranged between the other end of the directional anti-falling sleeve and the handrail (1); the sliding teeth (205) can slide along the sliding channel; a second insertion notch is formed between two adjacent sliding teeth (205); the second limiting bump (203) is inserted into the second insertion notch in a sliding manner; a plurality of inserting lugs (305) are annularly arranged on the base (3); the insertion lug (305) can be inserted from the first insertion notch; a first strip-shaped long hole (206) is formed in the side wall of the support tube (201); a side shift lever (207) is movably arranged in the first strip-shaped long hole (206) in a penetrating way; one end of the side shifting rod (207) is fixedly connected with the directional anti-release sleeve (204).

2. Universal handle for extra-cabin space crew according to claim 1, characterized in that said first elastic element (208) is provided, at the end relatively far from said directional anti-release sheath (204), with a second locking assembly (4); the second locking assembly (4) comprises: the device comprises an outer cutting sleeve (402), a movable cutting sleeve (403), a pressing component and a rotating component; the outer cutting sleeve (402) is fixed in the branch cylinder (201); the movable cutting sleeve (403) is connected in the outer cutting sleeve (402) through a limiting mechanism; the limiting mechanism is used for limiting the movable cutting sleeve (403) to move along the axial direction of the outer cutting sleeve (402); the pressing component is arranged at one end of the movable clamping sleeve (403) relatively far away from the first elastic piece (208); one end of the movable clamping sleeve (403) relatively far away from the pressing component is provided with a circle of indexing claws; the rotating component is provided with a contact inclined plane matched with the indexing claw; the end face of one end, relatively far away from the pressing component, of the outer clamping sleeve (402) is provided with shallow grooves and deep grooves which are arranged in a staggered mode in sequence; the shallow groove and the deep groove can be respectively clamped with the rotating assembly; when pressing the pressure subassembly makes the rotating assembly with outer cutting ferrule (402) breaks away from the joint, the rotating assembly is in the graduation claw with under the effect of contact inclined plane, can wind the axis direction of outer cutting ferrule (402) rotates, in order to realize the rotating assembly is in the deep trouth with the switching joint between the shallow slot.

3. The universal handle for spacecraft extravehicular use of claim 2, wherein said limiting mechanism comprises two circular through holes symmetrically disposed on said outer cutting ferrule (402) and two second elongated holes symmetrically disposed on said movable cutting ferrule (403); the length direction of the second strip-shaped long hole is parallel to the axial direction of the outer clamping sleeve (402); and a pin shaft (404) penetrates through the two circular through holes and the two second strip-shaped long holes to movably connect the outer clamping sleeve (402) with the movable clamping sleeve (403).

4. Universal handle for spacecraft on board of claim 2, wherein the pressing assembly comprises a push button (405) and a second resilient member (406) connected to the push button (405).

5. The universal handle for extra-cockpit use according to claim 1, characterized in that said base (3) comprises a base body (301); a plurality of mounting lugs (302) are annularly distributed at the bottom of the base body (301); each mounting lug piece (302) is provided with a connecting through hole (303) for connecting with a device to be moved.

6. Universal handle for extra-cabin space crew according to claim 1, characterized in that the armrest (1) is provided with a quick-locking pin (101) for quick mounting with extra-cabin maintenance aids.

7. Universal handle for spacecraft on board of claim 1, characterized in that the armrest (1) is provided with lightening holes (102).

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