CN110788838A

CN110788838A - Power-assisted lifting mechanical arm device

Info

Publication number: CN110788838A
Application number: CN201911205160.9A
Authority: CN
Inventors: 陈建丰
Original assignee: Cixi Dongxin Magnesium Industry Co Ltd
Current assignee: Cixi Dongxin Magnesium Industry Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-14

Abstract

The invention relates to a power-assisted lifting mechanical arm device, which comprises: the waist clip assembly is used for being assembled at the back position between the waist of a user; the support arm component is connected to the waist card component, and the tail end of the support arm component extends to the side part and can be bent in the horizontal direction; the supporting rod assembly comprises an adjusting rod and an auxiliary connecting piece, wherein the bottom end of the adjusting rod is hinged to the tail end of the supporting arm assembly, the auxiliary connecting piece is connected between the tail end of the supporting arm assembly and the upper part of the adjusting rod, and the auxiliary connecting piece can enable the adjusting rod to be kept in a corresponding angle state relative to the supporting arm assembly; and the bracket component is connected to the top end of the adjusting rod and used for placing an object to be supported. This arm device is lifted to helping hand can conveniently supply the user of service to wear back position between the waist, and its small in size conveniently carries, has satisfied the demand of the various shooting training of user of service, does not receive the restriction of factors such as place.

Description

Power-assisted lifting mechanical arm device

Technical Field

The invention relates to the technical field of auxiliary equipment, in particular to a power-assisted lifting mechanical arm device.

Background

The rifle is held to both hands and is operated when soaring the shooting, because the firearms itself is heavier, long-time holding of the rifle has higher requirement to user's physical power. Long-term shooting is prone to occupational diseases, such as long-term lateral head resulting in vascular compression, and discomfort of the arm, joint, etc. resulting from long-term arm lifting and fixation postures. When a police uses a gun, the stability of the gun during aiming can be caused because the environment is severe and a fixed point is lifted due to improper (gun) shooting. When police or military forces perform security tasks, the used shield is heavy and needs to be lifted by two hands, so that the use function of the other hand cannot be disengaged. Or the use of the electric tool from the bottom to the top easily causes the disadvantages of insufficient physical strength of workers and the like.

In order to solve the technical problems, a chinese utility model patent with application number CN201621195319.5 (with an authorization publication number CN206121096U) discloses a power-assisted mechanical arm device, when the device is used, a user puts a shooting gun on a gun stock, adjusts the positions of fastening bolts in different threaded through holes, can realize the adjustment of the relative distance between an upper side plate and a lower side plate, so that the gun stock is in different horizontal heights, and simultaneously, realizes the left-right rotation of the gun stock through a rotating shaft and the adjustment of the up-down angle of the gun stock through a supporting rod, thereby realizing the multi-angle omnibearing shooting use; the arrangement of the storage box is convenient for storing small articles, and is simple and practical; when a user wants to have a rest, the user can sit on the seat cushion to have a rest for a moment, and fatigue is relieved; the arrangement of the travelling wheels is convenient for the movement of the whole device, so that manpower and material resources are saved; the roof is arranged, so that the outdoor training can be effectively prevented from being exposed to the sun and rain, and the outdoor training is convenient and practical.

Although above-mentioned open-air shooting helping hand robotic arm device can realize the requirement of the all-round shooting training of multi-angle, but still have certain not enough, at first, above-mentioned auxiliary device is bulky, and the transport is very inconvenient, and the not suitable user of carrying about can only use at training house or specific training base, so how to provide a small in size and make things convenient for the wearable auxiliary support arm device that user of service carried about to become this technical field personnel a problem that awaits for a long time to solve.

Disclosure of Invention

The invention aims to solve the technical problem of providing a wearable power-assisted lifting and supporting mechanical arm device which is small in size and convenient for a user to carry, aiming at the current situation of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a power-assisted lift robot arm assembly comprising:

the waist clip assembly is used for being assembled at the back position between the waist of a user;

the support arm component is connected to the waist card component, and the tail end of the support arm component extends to the side part and can be bent in the horizontal direction;

the supporting rod assembly comprises an adjusting rod and an auxiliary connecting piece, wherein the bottom end of the adjusting rod is hinged to the tail end of the supporting arm assembly, the auxiliary connecting piece is connected between the tail end of the supporting arm assembly and the upper part of the adjusting rod, and the auxiliary connecting piece can enable the adjusting rod to be kept in a corresponding angle state relative to the supporting arm assembly;

and the bracket component is connected to the top end of the adjusting rod and used for placing an object to be supported.

The auxiliary connecting piece can be a spring piece or a rod piece with the length capable of being telescopically adjusted, so long as the auxiliary connecting piece can enable the adjusting rod to deflect in angle relative to the support arm component and can keep the adjusting rod in a corresponding angle state, and in order to further facilitate the angle adjustment of the adjusting rod, the auxiliary connecting piece is a tension spring or a damping rod (commonly known as a hydraulic support rod, a gas spring, a hydraulic rod, a support rod, a gas support upturning telescopic rod and a lifting air pressure rod).

When auxiliary connection spare is the extension spring, the both ends of extension spring are connected respectively the support arm subassembly the end with between the upper portion of adjusting the pole, when the user state, be the obtuse angle between regulation pole and the support arm subassembly under the effect of extension spring, the top of adjusting the pole has the trend that upwards deflects to the bracket assembly that the messenger located the top of adjusting the pole can be treated and is placed article and upwards provide the holding power. When the auxiliary connecting piece is the damping rod, the damping rod can be selected to be a hydraulic damping rod or a pneumatic damping rod, when the auxiliary connecting piece is in a use state, the adjusting rod and the support arm assembly are also in an obtuse angle, the top end of the adjusting rod can be supported under the action of the damping rod, and the damping rod can be selected according to the weight with the support price so as to ensure that enough supporting force can be provided.

When a user wears the power-assisted lifting mechanical arm device, in order to realize that the support rod assembly and the bracket assembly can flexibly and conveniently rotate to the front position of the user, the support rod assembly at least comprises a first support arm, a second support arm and a third support arm which are sequentially connected in series, wherein the first end of the first support arm is connected with the waist clamping assembly, the second end of the first support arm is hinged with the first end of the second support arm, and the second end of the second support arm is hinged with the third support arm; the bottom of adjusting the pole articulates on the third support arm, the extension spring is connected the third support arm with adjust between the upper portion of pole. Of course, it is contemplated that the arm assembly may employ a more articulated arm structure in order to increase the flexibility of the arm assembly.

In order to adapt to users with different body sizes, the second support arm is a telescopic arm with adjustable length. The user can adjust the length of second support arm according to self demand to with bracket assembly adjustment to the reasonable position that is fit for self.

The telescopic arm of the second support arm can adopt various prior art such as threaded connection, cover and establish buckle connection, in order to guarantee the fastness of second support arm and the flexibility of flexible regulation better, the second support arm includes first connecting plate and can with this first connecting plate sliding connection's second connecting plate, is equipped with first bar spout on the second connecting plate, and the extending direction of this first bar spout is unanimous with the length direction of second connecting plate, is equipped with first quick detach hasp on the first connecting plate, and this first quick detach hasp includes that first end connects the round pin axle on first connecting plate and articulates the eccentric button of dialling at the second end of this round pin axle, the round pin axle of first quick detach hasp passes behind the first bar spout through rotating eccentric button of dialling first connecting plate and second connecting plate locking.

In order to make the swing of adjusting the pole more steady, avoid controlling and rock, it is four-bar mechanism to adjust the pole, and this four-bar mechanism includes that first regulation pole, second adjust pole and connecting seat, and first regulation pole and second adjust pole parallel arrangement, the upper end of first regulation pole and the upper end of second regulation pole all articulate the connecting seat on, the lower extreme of first regulation pole and second regulation pole all articulate the third support arm on, bracket assembly connect be in on the connecting seat. It is of course conceivable that the adjustment rod may be of a single rod construction for cost saving purposes.

In order to adapt to the heights of different users, the user with different heights can adjust the bracket assembly to the front position suitable for the user, and the first adjusting rod and the second adjusting rod are telescopic rods with adjustable lengths.

As an improvement, the first adjusting rod comprises a first rod body and a second rod body, the upper part of the first rod body is provided with a plurality of first connecting holes along the length direction of the first rod body, the lower part of the second rod body is correspondingly provided with a second strip-shaped sliding groove along the length direction of the second rod body, and the second rod body and the first rod body are connected through at least two first positioning posts which penetrate through the corresponding first connecting holes and the second strip-shaped sliding grooves; the second adjusting rod comprises a third rod body and a fourth rod body, a plurality of second connecting holes are formed in the upper portion of the third rod body along the length direction of the third rod body, a third strip-shaped sliding groove is correspondingly formed in the lower portion of the fourth rod body along the length direction of the fourth rod body, and the fourth rod body and the third rod body are connected through at least two second positioning columns in the corresponding second connecting holes and the third strip-shaped sliding groove in a penetrating mode. The telescopic adjustment can be realized by adopting various prior arts such as threaded connection, sleeved buckle connection and the like between the first rod body and the second rod body of the first adjusting rod and between the third rod body and the fourth rod body of the second adjusting rod.

In order to facilitate the placement of an object to be supported (such as a firearm) and the angle adjustment in the vertical and left-right directions, the bracket assembly comprises a first support frame vertically arranged on the connecting seat and a second support frame transversely connected on the first support frame, the bottom end of the first support frame is rotatably connected on the connecting seat through a first rotating sleeve, the second support frame is rotatably connected at the top end of the first support frame through a second rotating sleeve, and the axis of the first rotating sleeve is perpendicular to the axis of the second rotating sleeve.

In order to conveniently adjust the height of the bracket assembly and adapt to heights of different users, the first support frame comprises a first support body and a second support body, the bottom end of the first support body is connected to the connecting seat, the height of the second support body can be adjusted relative to the first support body, and the second support frame is connected to the second support body.

As an improvement, the first frame body is provided with a plurality of third connecting holes in the vertical direction, the second frame body is correspondingly provided with a plurality of fourth connecting holes, and the second frame body and the first frame body are connected through at least two third positioning columns penetrating through the corresponding third connecting holes and the corresponding fourth connecting holes. Of course, it is conceivable that the height adjustment between the first frame body and the second frame body may be achieved by using various prior arts such as a threaded connection, a snap connection, and the like.

To enable fine adjustment in the transverse direction between the waist clip assembly and the first arm, the waist clip assembly comprises:

the mounting seat is connected to the first support arm and is provided with a transverse sliding groove, and the extending direction of the transverse sliding groove is consistent with the length direction of the first support arm;

the sliding block can be arranged in the transverse sliding groove of the sliding seat in a sliding manner;

the chuck is used for being inserted and assembled on a protective vest of a user, is connected to the side wall of the sliding block and can transversely slide along with the sliding block relative to the mounting seat;

the locking pin is movably arranged on the mounting seat in a penetrating manner, the first end of the locking pin is exposed out of the outer side wall of the first support arm for a user to pull, and the second end of the locking pin can penetrate through the second strip-shaped sliding groove correspondingly arranged on the sliding block and be clamped in the clamping groove correspondingly arranged on the wall of the chuck;

and the first pressure spring is arranged on the mounting seat and acts on the locking pin, so that the locking pin always has the tendency of moving towards the chuck.

When the relative position of chuck and first support arm is adjusted to needs, can outwards stimulate the stop pin, make the second end of stop pin break away from the chuck, like this the chuck alright with along with the relative mount pad lateral shifting of slider, when removing to preset position, loosen the stop pin, under the elastic force effect of first pressure spring, the stop pin can be automatic the block fit to the draw-in groove of chuck, fixed chuck and mount pad and first support arm, avoid taking place to become flexible.

In order to facilitate the chuck to be capable of rotating and adjusting relative to the mounting seat, the chuck is connected to the sliding block through a positioning pin and can rotate around the positioning pin relative to the sliding block; the clamping groove on the wall of the chuck is provided with a plurality of clamping positions for the locking pin to be clamped in, and the plurality of clamping positions are sequentially arranged along the arc direction taking the positioning pin as the center; the slider is further provided with a limiting pin, the chuck is further provided with an arc-shaped groove with the positioning pin as a circle center, and at least part of the limiting pin is clamped in the arc-shaped groove. When the angle of chuck and first support arm need be adjusted, can outwards stimulate the stop pin, make the second end of stop pin break away from the chuck, like this the chuck alright rotate around the locating pin and carry out angle modulation, when rotating to preset position, loosen the stop pin, under the elastic force effect of first pressure spring, the stop pin can be automatic the block join in marriage in the corresponding screens of chuck, fixed chuck and mount pad and first support arm.

As an improvement, each clamping position in the clamping groove is a sawtooth-shaped groove, and the inner wall surface of the sawtooth-shaped groove comprises a thrust blocking surface capable of blocking the lower part of the second end of the locking pin and a transition inclined surface for enabling the second end of the locking pin to slide upwards to the other clamping position.

In order to facilitate assembly among the chuck, the sliding block and the mounting seat, the mounting seat comprises an upper seat body and a lower seat body, the top of the upper seat body is provided with an extension wall extending towards the side part, the extension wall is provided with a first V-shaped groove with a downward notch, the lower seat body is connected to the bottom of the upper seat body through a second quick-release lock catch and is matched with the upper seat body to form a second V-shaped groove with an upward notch, the first V-shaped groove and the second V-shaped groove are vertically arranged oppositely, an area between the first V-shaped groove and the second V-shaped groove forms the transverse sliding groove, and the sliding block is a strip-shaped plate matched with the transverse sliding groove. Certainly, the mounting seat adopts a split structure consisting of an upper seat body and a lower seat body and is locked by the quick-release lock catch, so that on one hand, the assembly among the chuck, the sliding block and the mounting seat is facilitated, on the other hand, the transverse sliding adjustment of the sliding block is facilitated, and the firmness of the fixation between the sliding block and the mounting seat is improved, namely, when the sliding block (the chuck) needs to be transversely slidably adjusted, the quick-release lock catch can be loosened, so that the upper seat body and the lower seat body of the mounting seat are in a loose state, and the sliding block can flexibly slide in the transverse sliding groove; when the sliding block moves to the preset position, the unlocking buckle is locked, the upper seat body and the lower seat body are locked, the sliding block is clamped, and the firmness of the waist clamping assembly is improved.

In order to provide auxiliary support and relieve waist stress of a user, the waist support also comprises a shoulder support which is worn on the shoulder position of the user and is connected with the arm component or the waist card component through a lifting rope to provide auxiliary support force.

Compared with the prior art, the invention has the advantages that: the power-assisted lifting mechanical arm device can be conveniently worn on the back of the waist by users, is small in size and convenient to carry, meets various use requirements of the users, and is not limited by factors such as fields. The bracket assembly of the power-assisted lifting mechanical arm device can be turned to the front position of a user through the support arm assembly, the adjusting rod of the support arm assembly can rotate at an angle in the vertical direction, and corresponding supporting force is provided under the supporting effect of the auxiliary connecting piece so that the user can place corresponding objects, and the power-assisted lifting mechanical arm device is convenient and flexible to operate. The power-assisted lifting mechanical arm device is not only suitable for training personnel to place firearms, but also can be used for changing different bracket assemblies to place different objects and providing corresponding auxiliary supports, such as shields for security personnel to carry out security tasks, electric tools for large-scale machine repair personnel and the like.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention (with the arm assembly in an unbent and inverted position);

FIG. 2 is a schematic perspective view of an embodiment of the present invention (the arm assembly is in a bent and flipped state, and the auxiliary connecting member is a damping rod);

FIG. 3 is a schematic perspective view of another embodiment of the present invention (with the arm assembly in a bent and flipped state);

FIG. 4 is a schematic perspective view of a bracket assembly in accordance with an embodiment of the present invention;

FIG. 5 is a perspective view of the waist clip assembly and the first arm of the present invention;

FIG. 6 is a perspective view of an alternative angle of the waist clip assembly and the first arm after assembly in accordance with the present invention;

FIG. 7 is a cross-sectional view taken at A-A of FIG. 6;

FIG. 8 is a cross-sectional view taken at B-B of FIG. 6;

FIG. 9 is an exploded view of FIG. 6;

FIG. 10 is a schematic perspective view of a slider mounted on a mounting base according to an embodiment of the present invention;

FIG. 11 is a schematic perspective view of the slider shown in FIG. 10 with the slider hidden;

FIG. 12 is a schematic perspective view of the back side of the chuck in an embodiment of the present invention;

FIG. 13 is a schematic perspective view of FIG. 6 with the chuck omitted;

FIG. 14 is a perspective view of an arm assembly according to an embodiment of the present invention;

FIG. 15 is a top view of a second arm according to an embodiment of the present invention;

FIG. 16 is an exploded view of FIG. 15;

FIG. 17 is a partially exploded view of the support rod assembly of the present embodiment;

fig. 18 is a schematic perspective view of an embodiment of the present invention (the arm assembly is in a bent and flipped state, and the auxiliary connecting member is a tension spring).

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Referring to fig. 1 to 18, a power assisted lifting arm device includes a waist clip assembly 10, an arm assembly 20, a support rod assembly 30 and a bracket assembly 40, wherein the waist clip assembly 10 is configured to be mounted at a back position of a waist of a user, the arm assembly 20 is connected to the waist clip assembly 10, a distal end of the arm assembly 20 extends to a side and can be bent and turned over to a front position of a human body in a horizontal direction, the support rod assembly 30 includes an adjusting rod 31 and an auxiliary connecting member, a bottom end of the adjusting rod 31 is hinged to a distal end of the arm assembly 20, the auxiliary connecting member is connected between the distal end of the arm assembly 20 and an upper portion of the adjusting rod 31, and the adjusting rod 31 can be maintained at a desired corresponding angle relative to the arm assembly 20 under the action of the auxiliary connecting member. A bracket assembly 40 is attached to the top end of the adjustment rod 31. the bracket assembly 40 can be used to hold articles to be supported, such as firearms for shooting training, shields for security tasks, and power tools for large machine repairmen, among others. The power-assisted lifting mechanical arm device also solves the problem that when a police uses a gun, due to the fact that the environment is severe, due to the fact that a proper (gun) shooting lifting fixed point is not available, stability of the gun during aiming is caused; and when police or army carry out security task, the shield of use is heavier, needs two hands to lift and hold in the palm to can not get rid of the problem of another hand's use function. Or the use of the electric tool from the bottom to the top easily causes the disadvantages of insufficient physical strength of workers and the like.

The auxiliary link of the present embodiment is selected to be a tension spring 32a or a damper lever 32 b. When the auxiliary connecting member is a tension spring 32a, two ends of the tension spring 32a are respectively connected between the tail end of the support arm assembly 20 and the upper portion of the adjusting rod 31, when the auxiliary connecting member is in a use state, an obtuse angle is formed between the adjusting rod 31 and the support arm assembly 20, and under the action of the tension spring 32a, the top end of the adjusting rod 31 has a tendency of deflecting upwards, so that the bracket assembly 40 arranged at the top end of the adjusting rod 31 can provide a supporting force upwards for an article to be placed, see fig. 18. When the auxiliary connecting piece is a damping rod 32b, the damping rod 32b can be selected to be a hydraulic damping rod or a pneumatic damping rod, when the auxiliary connecting piece is in a use state, an obtuse angle is formed between the adjusting rod 31 and the support arm assembly 20, and under the action of the damping rod 32b, the top end of the adjusting rod 31 can be supported, wherein the damping rod 32b can be selected according to the weight of a supported object to ensure that enough supporting force can be provided, and the figure 2 shows.

Referring to fig. 9, the waist clip assembly 10 includes a mounting seat 11, a sliding block 12, a clamping disc 13, a locking pin 18 and a first compression spring 14, wherein the mounting seat 11 is connected to a first arm 21 of an arm assembly 20, the mounting seat 11 has a transverse sliding slot 110 for assembling the sliding block 12, the transverse sliding slot 110 extends in a direction consistent with a length direction of the first arm 21, specifically, the mounting seat 11 includes an upper seat body 51 and a lower seat body 52, a top of the upper seat body 51 has an extending wall 511 extending towards a side, the extending wall 511 is provided with a first V-shaped slot 512 with a downward notch, the lower seat body 52 is connected to a bottom of the upper seat body 51 through a second quick release latch 53, the lower seat body 52 is fitted to the bottom of the upper seat body 51 to form a second V-shaped slot 521 with an upward notch, the first V-shaped slot 512 and the second V-shaped slot 521 are arranged opposite to each other in a vertical direction and make an area between the two, the sliding block 12 is slidably disposed in the transverse sliding groove 110 of the mounting base 11, the sliding block 12 of this embodiment is a strip-shaped plate adapted to the transverse sliding groove 110, and wedge-shaped portions 121 adapted to the two V-shaped grooves are respectively formed on the upper and lower walls of the strip-shaped plate.

In order to improve the clamping firmness of the upper seat body 51 and the lower seat body 52 of the mounting seat 11, there are two second quick release latches 53 in the embodiment, and the two second quick release latches 53 are arranged at intervals along the extending direction of the transverse sliding slot 110. The second quick release latch 53 of the present embodiment has the same structure as the first quick release latch 24, and also includes a pin and an eccentric toggle button, and a user toggles the eccentric toggle button to lock the lower seat 52 and the upper seat 51, so as to clamp the slider 12. In addition, referring to fig. 7 and 9, a second pressure spring 55 is further disposed between the upper seat body 51 and the lower seat body 52 of the mounting seat 11, and there are two second pressure springs 55 corresponding to the two second quick release latches 53, specifically, the second pressure spring 55 is disposed at a position where the upper seat body 51 and the lower seat body 52 are combined, when the eccentric toggle of the second quick release latch 53 is toggled to release, the second pressure spring 55 can drive the lower seat body 52 to automatically disengage from the upper seat body 51, so that a user can conveniently move and adjust the slider 12 in the transverse sliding slot 110.

Referring to fig. 5-8, the chuck 13 is connected to the side wall of the sliding block 12 and can slide along with the sliding block 12 transversely relative to the mounting seat 11, and when a user wears the power-assisted lifting robot, the chuck 13 can be inserted and matched on the protective vest of the user, so that the power-assisted lifting robot provides support for the whole power-assisted lifting robot arm device. The locking pin 18 is movably disposed through the mounting base 11, a first end of the locking pin 18 is exposed out of the outer side wall of the first arm 21 and has a pull ring for a user to pull, and a second end of the locking pin 18 can pass through a second strip-shaped sliding slot 120 correspondingly disposed on the sliding block 12 and be clamped in a clamping slot 130 correspondingly disposed on the wall of the chuck 13. The first compression spring 14 is mounted on the mounting seat 11 and can act on the locking pin 18, so that the locking pin 18 always has a tendency to move towards the chuck 13, specifically, a cavity 54 is provided in the middle of the upper seat body 51 of the mounting seat 11, the locking pin 18 penetrates through the cavity 54, wherein a nut member 19 is screwed on the locking pin 18, the nut member 19 sleeved on the locking pin 18 is located in the cavity 54 for limiting the locking pin 18 in the axial direction, correspondingly, the first compression spring 14 is sleeved on the locking pin 18 and located in the cavity 54, a first end of the first compression spring 14 abuts against the nut member 19, and the other end abuts against the wall of the cavity 54 of the upper seat body 51, see fig. 8 in detail.

Referring to fig. 12, in order to facilitate the rotation adjustment of the chuck 13 itself with respect to the mounting base 11, the chuck 13 is connected to the slide block 12 by the positioning pin 18 and can rotate around the positioning pin 18 with respect to the slide block 12, and accordingly, the locking slot 130 on the wall of the chuck 13 has a plurality of locking positions 131 for the locking pin 18 to be inserted into, and the plurality of locking positions 131 are arranged in sequence along an arc direction with the positioning pin 18 as a center. Still be equipped with the spacer pin 16 on the slider 12, still be equipped with the arc wall 17 that uses locating pin 18 as the centre of a circle on the chuck 13, wherein, during the arc wall 17 was gone into to at least part card of spacer pin 16, the radian that corresponds of arc wall 17 was unanimous with the radian that the draw-in groove 130 corresponds, arc wall 17 alright inject the rotation range angle of chuck like this, avoid excessively rotating.

Referring to fig. 8 and 12, each of the locking portions 131 of the locking slot 130 in the embodiment is a sawtooth-shaped slot, that is, each of the locking portions 131 has a transition inclined surface 132 and a stop surface 133 therein, the stop surface 133 can abut against a lower portion of the second end of the locking pin 14 to limit the position of the locking pin 14 in a downward direction, and the transition inclined surface 132 can allow the second end of the locking pin 14 to slide upward into the other locking portion 131 to realize the unidirectional rotation of the first arm 21. Specifically, when the angle between the chuck 13 and the first arm 21 needs to be adjusted in a clockwise direction, the chuck 13 can be directly rotated (i.e. the first arm 21 is lifted upwards) to complete the adjustment, and since the end of the locking pin acts on the smooth transition surface 132, the positioning pin can automatically extend and retract during the sliding process, so that the locking pin 18 does not need to be pulled outwards in the process; when the angle between the chuck 13 and the first arm 21 needs to be adjusted in the counterclockwise direction, since the stop surface 133 of the locking portion 131 limits the end of the locking pin, the locking pin 18 needs to be pulled outward to separate the second end of the locking pin 18 from the chuck 13, so that the chuck 13 can rotate freely around the locking pin 18 for angle adjustment, when the chuck is rotated to a predetermined position, the locking pin 18 is released, and under the action of the elastic force of the first pressure spring 14, the locking pin 18 can be automatically engaged in the corresponding locking portion 131 of the chuck 13 to fix the chuck 13 with the mounting seat 11 and the first arm 21.

Referring to fig. 14, the arm assembly 20 may employ a plurality of articulating arm structures to provide flexibility and ease in pivoting the support rod assembly 30 and carriage assembly 40 to the front of the user when the user is wearing the assisted lift arm device. The arm assembly 20 in this embodiment comprises a first arm 21, a second arm 22 and a third arm 23 connected in series in sequence, wherein a first end of the first arm 21 is connected with the waist clip assembly 10, a second end of the first arm 21 is hinged with a first end of the second arm 22, and a second end of the second arm 22 is hinged with the third arm 23; the bottom end of the adjusting lever 31 is hinged to the third arm 23, and a tension spring 32a (the auxiliary connecting member is illustrated by taking a tension spring as an example) is connected between the third arm 23 and the upper part of the adjusting lever 31, and it is conceivable that a plurality of tension springs 32a may be provided according to actual requirements.

Referring to fig. 15 and 16, in order to adapt to users of different body types, the second support arm 22 is a telescopic arm with adjustable length, specifically, the second support arm 22 includes a first connection plate 221 and a second connection plate 222 capable of being slidably connected to the first connection plate 221, the second connection plate 222 is provided with a first bar-shaped sliding slot 223, an extending direction of the first bar-shaped sliding slot 223 is identical to a length direction of the second connection plate 222, the first connection plate 221 is provided with a first quick release latch 24, the first quick release latch 24 includes a pin 241 whose first end is connected to the first connection plate 221 and an eccentric toggle button 242 hinged to the second end of the pin 241, and the pin of the first quick release latch 24 passes through the first bar-shaped sliding slot 223 and then locks the first connection plate 221 and the second connection plate 222 by rotating the eccentric toggle button 242. In this embodiment, the user may adjust the length of the second arm 22 according to his or her needs, thereby adjusting the bracket assembly 40 to a proper position for himself or herself.

Referring to fig. 3, the number of the adjusting levers 31 in this embodiment is two, namely, a first adjusting lever 311 and a second adjusting lever 312, the first adjusting lever 311 and the second adjusting lever 312 are arranged side by side, specifically, the bottom end of the first adjusting lever 311 and the bottom end of the second adjusting lever 312 are both hinged on the third arm 23, the top end of the first adjusting lever 311 and the top end of the second adjusting lever 312 are both hinged on a connecting seat 33, and the bracket assembly 40 is connected on the connecting seat 33, that is, the third arm 23, the first adjusting lever 311, the second adjusting lever 312 and the connecting seat 33 form a four-bar linkage mechanism, two fulcrums at the bottom of the four-bar linkage mechanism are located on the third arm 23, and the connecting seat 33 is connected on a movable end of the four-bar. The four-bar mechanism can make the swing process of the adjusting rod 31 more stable and avoid left and right shaking. Damping pieces for damping are provided at positions where the bottom end of the first adjustment lever 311 and the bottom end of the second adjustment lever 312 are connected to the third arm 23, and similarly, damping pieces are provided at positions where the top end of the first adjustment lever 311 and the top end of the second adjustment lever 312 are connected to the link base 33.

In order to adapt to the heights of different users, the user with different heights can adjust the bracket assembly 40 to the front position suitable for the user, and the first adjusting rod 311 and the second adjusting rod 312 are telescopic rods with adjustable lengths. Specifically, in this embodiment, the first adjustment lever 311 includes a first lever 311a and a second lever 311b, the upper portion of the first lever 311a is provided with a plurality of first connection holes 3110 along the length direction thereof, the lower portion of the second lever 311b is correspondingly provided with a second bar-shaped sliding slot 3111 along the length direction thereof, and the second lever 311b and the first lever 311a are connected through at least two first positioning posts 34 penetrating through the corresponding first connection holes 3110 and the second bar-shaped sliding slot 311 b. The second adjustment lever 312 includes a third lever 312a and a fourth lever 312b, the upper portion of the third lever 312a is provided with a plurality of second connection holes 3120 along the length direction thereof, the lower portion of the fourth lever 312b is correspondingly provided with a third strip-shaped sliding groove 3121 along the length direction thereof, and the fourth lever 312b and the third lever 312a are connected with each other by at least two second positioning posts 35 penetrating through the corresponding second connection holes 3120 and the third strip-shaped sliding groove 3121, as shown in detail in fig. 16.

Referring to fig. 4, the bracket assembly 40 includes a first support frame 41 vertically disposed on the connecting base 33 and a second support frame 42 transversely connected to the first support frame 41, the second support frame 42 is used for holding a firearm (or other device to be placed), a bottom end of the first support frame 41 is rotatably connected to the connecting base 33 through a first rotating sleeve 43, the second support frame 42 is rotatably connected to a top end of the first support frame 41 through a second rotating sleeve 44, and an axis of the first rotating sleeve 43 is perpendicular to an axis of the second rotating sleeve 44. The bracket assembly 40 can be used for the firearms placed on the second support frame 42 to realize multi-angle adjustment in the up-down direction and the left-right direction, and is more flexible and convenient. In this embodiment, the first rotating sleeve 43 and the second rotating sleeve 44 both use damping rotating shafts to increase the rotating stability of the first supporting frame 41 and the second supporting frame 42 and to realize the stop at any angle.

Continuing to refer to fig. 4, in order to conveniently adjust the height of bracket assembly 40, with the height of the different user of adaptation, first support frame 41 includes that the bottom is connected on connecting seat 33 first support body 45 and can carry out height control's second support body 46 relative to first support body 45, second support frame 42 is connected on second support body 46, specifically, first support body 45 is equipped with a plurality of third connecting holes (not shown) in the vertical direction, correspond on the second support body 46 and be equipped with a plurality of fourth connecting holes (not shown), connect through two at least third reference columns 47 between second support body 46 and the first support body 45, third reference column 47 corresponds to wear to establish in third connecting hole and fourth connecting hole.

In addition, in order to improve the comfort and firmness of the assisted lifting mechanical arm device after being worn, the assisted lifting mechanical arm device in the embodiment further includes a shoulder rest 60 and a back plate 61, wherein the shoulder rest 60 has two shoulders capable of being worn by a user, the back plate 61 is capable of being worn by the back of the user, and the shoulder rest 60 and the back plate 61 can be connected to the support arm assembly 20 or the chuck 13 through a lifting rope or a steel wire line to provide an auxiliary supporting force, so that the weight of the assisted lifting mechanical arm is evenly distributed at the waist, the back, the shoulders and the like of the user, as shown in fig. 1 in detail.

The power-assisted lifting mechanical arm device in the embodiment can be conveniently worn on the back of the waist by a user, is small in size and convenient to carry, meets various use requirements of the user, and is not limited by factors such as the field. Bracket assembly 40 of mechanical arm device is lifted to the helping hand can overturn to user's front position through arm subassembly 20, and the regulation pole 31 of bracing piece subassembly 30 can make angular rotation on vertical direction to under auxiliary connection's supporting role, provide corresponding holding power, place the firearms for user's personnel, its convenient operation is nimble. The power-assisted lifting mechanical arm device of the embodiment is not only suitable for training personnel to place firearms, but also can be used for replacing different bracket assemblies to place different objects and provide corresponding auxiliary supports, such as shields for security personnel to carry out security tasks, electric tools for large-scale machine repair personnel and the like.

Claims

1. The utility model provides a mechanical arm device is lifted to helping hand which characterized in that includes:

a waist clip assembly (10) for fitting in a back position between the waist of a user;

the arm assembly (20) is connected to the waist card assembly (10), and the tail end of the arm assembly extends to the side part and can be bent in the horizontal direction;

the support rod assembly (30) comprises an adjusting rod (31) and an auxiliary connecting piece, wherein the bottom end of the adjusting rod is hinged to the tail end of the support arm assembly (20), the auxiliary connecting piece is connected between the tail end of the support arm assembly (20) and the upper part of the adjusting rod (31) and can enable the adjusting rod (31) to be kept in a corresponding angle state relative to the support arm assembly (20);

and the bracket assembly (40) is connected to the top end of the adjusting rod (31) and is used for placing an object to be supported.

2. The power assisted lift arm apparatus of claim 1, wherein: the auxiliary connecting piece is a tension spring (32a) or a damping rod (32 b).

3. The power assisted lift arm apparatus of claim 1, wherein: the support arm assembly (20) at least comprises a first support arm (21), a second support arm (22) and a third support arm (23) which are sequentially connected in series, wherein the first end of the first support arm (21) is connected with the waist clip assembly (10), the second end of the first support arm (21) is hinged with the first end of the second support arm (22), and the second end of the second support arm (22) is hinged with the third support arm (23);

the bottom end of the adjusting rod (31) is hinged to the third support arm (23), and the auxiliary connecting piece is connected between the third support arm (23) and the upper portion of the adjusting rod (31).

4. The power assisted lift arm apparatus of claim 3, wherein: the second support arm (22) is a telescopic arm with adjustable length.

5. The power assisted lift arm apparatus of claim 4, wherein: the second support arm (22) comprises a first connecting plate (221) and a second connecting plate (222) which can be in sliding connection with the first connecting plate (221), a first strip-shaped sliding groove (223) is formed in the second connecting plate (222), the extending direction of the first strip-shaped sliding groove (223) is consistent with the length direction of the second connecting plate (222), a first quick-release lock catch (24) is arranged on the first connecting plate (221), the first quick-release lock catch (24) comprises a pin shaft (241) with a first end connected to the first connecting plate (221) and an eccentric shifting button (242) hinged to the second end of the pin shaft (241), and the pin shaft (241) of the first quick-release lock catch (24) penetrates through the first strip-shaped sliding groove (223) and then locks the first connecting plate (221) and the second connecting plate (222) by rotating the eccentric shifting button (242).

6. The power assisted lift arm apparatus of any one of claims 1-5, wherein: adjust pole (31) and be four-bar linkage, this four-bar linkage includes that first regulation pole (311), second adjust pole (312) and connecting seat (33), and first regulation pole (311) and second adjust pole (312) parallel arrangement, and the upper end of first regulation pole (311) and the upper end of second regulation pole (312) all articulate connecting seat (313) on, the lower extreme of first regulation pole (311) and the lower extreme of second regulation pole (312) all articulate third support arm (23) on, bracket assembly (40) connect be in on connecting seat (33).

7. The power assisted lift arm apparatus of claim 6, wherein: the first adjusting rod (311) and the second adjusting rod (312) are telescopic rods with adjustable lengths.

8. The power assisted lift arm apparatus of claim 7, wherein: the first adjusting rod (311) comprises a first rod body (311a) and a second rod body (311b), a plurality of first connecting holes (3110) are formed in the upper portion of the first rod body (311a) along the length direction of the first rod body, a second strip-shaped sliding groove (3111) is correspondingly formed in the lower portion of the second rod body (311b) along the length direction of the second rod body, and the second rod body (311b) is connected with the first rod body (311a) through at least two first positioning columns (34) penetrating through the corresponding first connecting holes (3110) and the second strip-shaped sliding groove (3111);

the second adjusting rod (312) comprises a third rod body (312a) and a fourth rod body (312b), a plurality of second connecting holes (3120) are formed in the upper portion of the third rod body (312a) along the length direction of the third rod body, a third strip-shaped sliding groove (3121) is correspondingly formed in the lower portion of the fourth rod body (312b) along the length direction of the fourth rod body, and the fourth rod body (312b) and the third rod body (312a) are connected through at least two second positioning columns (35) penetrating through the corresponding second connecting holes (3120) and the third strip-shaped sliding groove (3121).

9. The power assisted lift arm apparatus of claim 6, wherein: bracket assembly (40) are including vertical setting first support frame (41) on connecting seat (33) and transverse connection second support frame (42) on this first support frame (41), the bottom of first support frame (41) is rotated through first rotating sleeve (43) and is connected on connecting seat (33), second support frame (42) is rotated through second rotating sleeve (44) and is connected the top of first support frame (41), and the axis of first rotating sleeve (43) is perpendicular with the axis of second rotating sleeve (44).

10. The power assisted lift arm apparatus of claim 9, wherein: first support frame (41) include that the bottom is connected first support body (45) on connecting seat (33) and second support body (46) that can carry out height control relatively first support body (45), second support frame (42) are connected on second support body (46).

11. The power assisted lift arm apparatus of claim 10, wherein: first support body (45) are equipped with a plurality of third connecting holes in vertical direction, correspond on second support body (46) and are equipped with a plurality of fourth connecting holes, wear to establish through at least two third reference columns (47) between second support body (46) and first support body (45) and be connected in corresponding third connecting hole and fourth connecting hole.

12. A power assisted lift arm apparatus according to any of claims 3 to 5, wherein the waist clip assembly (10) comprises:

the mounting seat (11) is connected to the first support arm (21) and is provided with a transverse sliding groove (110) of which the extending direction is consistent with the length direction of the first support arm (21);

the sliding block (12) is slidably arranged in the transverse sliding groove (110) of the sliding seat;

the chuck (13) is used for being inserted and matched on a protective vest of a user, and the chuck (13) is connected to the side wall of the sliding block (12) and can transversely slide along with the sliding block (12) relative to the mounting seat (11);

the locking pin (14) is movably arranged on the mounting seat (11) in a penetrating mode, the first end of the locking pin (14) is exposed out of the outer side wall of the first support arm (21) and is used for being pulled by a user, and the second end of the locking pin (14) can penetrate through a second strip-shaped sliding groove (120) correspondingly arranged on the sliding block (12) and is clamped in a clamping groove (130) correspondingly arranged on the wall of the chuck (13);

and the first pressure spring (14) is arranged on the mounting seat (11) and acts on the locking pin (14), so that the locking pin (14) always has the tendency of moving towards the chuck (13).

13. The power assisted lift arm apparatus of claim 12, wherein: the chuck (13) is connected to the sliding block (12) through a positioning pin (15) and can rotate around the positioning pin (15) relative to the sliding block (12);

the clamping grooves (130) on the wall of the chuck (13) are provided with a plurality of clamping positions (131) for clamping the locking pins (14), and the plurality of clamping positions (131) are sequentially arranged along the arc direction with the positioning pins (15) as the center;

be equipped with spacer pin (16) on slider (12), still be equipped with on chuck (13) with locating pin (15) arc wall (17) as the centre of a circle, at least part card of spacer pin (16) is gone into in arc wall (17).

14. The power assisted lift arm apparatus of claim 13, wherein: each clamping position (131) in the clamping groove (130) is a sawtooth-shaped groove, and the inner wall surface of the sawtooth-shaped groove comprises a stop surface (133) capable of stopping at the lower part of the second end of the locking pin and a transition inclined surface (132) for the second end of the locking pin (14) to slide upwards to the other clamping position (131).

15. The power assisted lift arm apparatus of claim 12, wherein: the mounting seat (11) comprises an upper seat body (51) and a lower seat body (52), the top of the upper seat body (51) is provided with an extension wall (511) extending towards the side part, a first V-shaped groove (512) with a downward notch is formed in the extension wall (511), the lower seat body (52) is connected to the bottom of the upper seat body (51) through a second quick-release lock catch (53) and is matched with the upper seat body (51) to form a second V-shaped groove (521) with an upward notch, the first V-shaped groove (512) and the second V-shaped groove (521) are vertically arranged oppositely, an area between the first V-shaped groove and the second V-shaped groove forms the transverse sliding groove (110), and the sliding block (12) is a strip-shaped plate matched with the transverse sliding groove (110).

16. The power assisted lift arm apparatus of any one of claims 1-5, wherein: and a shoulder support (60) for wearing on the shoulder of the user, wherein the shoulder support (60) is connected to the arm assembly (20) or the waist card assembly (10) through a lifting rope to provide auxiliary supporting force.