CN210018659U - Joint linkage structure - Google Patents

Abstract

The utility model discloses a joint linkage structure relates to crib technical field, and its technical scheme main points are: including standing pipe and the handrail pipe that the pipe top of standing is connected, the pipe that stands is provided with the impeller along its axial direction slip, the fixed connecting block that is provided with in pipe top of standing, the one end of handrail pipe articulates in the connecting block top, one side that the impeller top is close to the handrail pipe articulates there is the linkage piece, the linkage piece is kept away from the one end of impeller and is articulated to have a driven piece, the driven piece is kept away from the one end of connecting block and is articulated to have a guide block, the one end of guide block articulates in the connecting block bottom, the other end articulates there is the supporting shoe, the supporting shoe is kept away from the one end of guide block and. Through forming the linkage of four-bar linkage, the linkage process is more stable to replace the haulage rope to pull by the impeller, realize improving handrail pipe and receive stability and the convenience on standing the riser.

Description

Joint linkage structure

Technical Field

The utility model relates to a crib technical field, more specifically say, it relates to a joint linkage structure.

Background

The crib is the indispensable special furniture in the family that possess the baby, and the purpose is for making the baby can possess more comfortable safe sleep and activity environment. For the convenience of the crib storage and transportation in the prior art, the crib frame is folded and folded by adopting a fast folding direction.

If the granted publication number is CN208064926U, the publication date is 2018.11.09, which discloses a quickly foldable crib frame, comprising an insertion tube, an unlocking device disposed on the insertion tube, a support tube disposed perpendicular to the end of the insertion tube, a first linkage device disposed at the connection between the support tube and the insertion tube, a long handrail set connected with the support tube, a short handrail set perpendicular to the long handrail set, and a second linkage device disposed on the long handrail set and the short handrail set, wherein the insertion tube is further provided with a locking mechanism connected with the unlocking device in a matching manner, the locking mechanism is connected with the unlocking device in a matching manner, the first linkage device comprises a linkage frame, a first top block disposed at the end of the folding tube, and a second top block disposed in the support tube, a gap is left between the first top block and the second top block, and the first top block and the second top block are both disposed in the linkage frame, the joint of the first jacking block and the folding pipe is also provided with a positioning column, the first jacking block is also connected with a second spring, one end of the second spring props against the positioning column, the other end of the second spring props against the inner wall of the first jacking block, the second jacking block is connected with a traction rope, the traction rope is also provided with a branching block which divides the traction rope into a long section which is matched and connected with the long handrail group and a short section which is matched and connected with the short handrail group, the linkage frame is also internally provided with an inner inserting hole which is matched and connected with the pipe supporting piece, one end of the balance pipe, far away from the connecting clamping frame, is matched and hinged with the interior of the linkage frame, the second linkage device comprises a movable frame arranged on the long handrail group, a connecting cylinder arranged in the movable frame, a third spring arranged in the connecting cylinder and a limiting piece matched and arranged with one end of the connecting cylinder, far away from the movable frame, and a limiting shaft matched and connected with the long handrail group is arranged in the connecting cylinder, the third spring props against the limiting shaft, the limiting part is connected with the movable frame in a matched mode, and the connecting cylinder is connected with the traction rope in a matched mode.

The pipe inserting piece is folded by controlling the unlocking device, and the first linkage device is unfolded through the traction rope in the folding process, so that the long handrail group and the short handrail group are driven to swing and fold towards the pipe supporting piece, and the folding of the long handrail group and the short handrail group at the joint of the pipe supporting piece is realized. However, the linkage between the handrail tube and the supporting tube depends on the linkage of the traction rope, and the linkage process of the traction rope is easy to cause winding, so that the linkage process is not stable enough, and the folding process is troublesome.

SUMMERY OF THE UTILITY MODEL

To current technical problem, the utility model aims to provide a joint linkage structure can improve the stability of receipts linkage process of closing, has the advantage that improves the convenience of receipts and receipts.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a joint linkage structure, includes the handrail pipe that stand pipe and stand pipe top are connected, the pipe of standing is provided with the impeller along its axial direction slip, the fixed connecting block that is provided with in stand pipe top, the one end of handrail pipe articulates in the connecting block top, one side that the impeller top is close to the handrail pipe articulates there is the linkage piece, the one end that the impeller was kept away from to the linkage piece articulates there is the driven piece, the one end that the connecting block was kept away from to the driven piece articulates there is the guide block, the one end of guide block articulates in the connecting block bottom, and the other end articulates there is the supporting shoe, the one end that the guide block was kept away from to the supporting shoe articulates on the handrail pipe, when the.

So set up, through the gliding of impeller in the pipe axial of standing, drive linkage piece lower hem, thereby drive driven piece downswing, make the guide block receive the connecting block, driven piece and linkage block form four-bar linkage, thereby make driven piece wobbling process drive guide block to the direction swing that is close to the connecting block, in order to drive the supporting shoe upswing, thereby make the handrail pipe obtain the power of unloading and the pin joint downswing of handrail pipe and station riser, realize the folding receipts of handrail pipe and receive, in the whole operation process, only need control the impeller and slide downwards, can drive the handrail pipe through the linkage and fold, adopt four-bar linkage, the linkage process is more stable, realize improving the stability and the convenience that handrail pipe receipts were received on the station riser.

Further setting: the driven block is hinged to the inside of one end of the connecting block, a positioning block is hinged to the inside of one end of the connecting block, and one end, far away from the driven block, of the positioning block is hinged to the middle position of the connecting block.

So set up, through the locating piece that sets up, can provide the support setpoint for the pin joint between linkage piece and the driven piece, improve linkage process's stability to the handrail pipe is folded and is closed on the stand pipe.

Further setting: the handrail tube is provided with a yielding groove for limiting a hinge point, and when the handrail tube is folded, the hinge point of the supporting block and the guide block is embedded in the yielding groove.

So set up, through the groove of stepping down that sets up for when the handrail pipe is folded and is received, the pin joint swing back of supporting shoe and guide block is embedded and is located the inslot of stepping down, reduces the space and occupies, and the handrail pipe of being convenient for is received and fold on the riser of standing.

Further setting: the handrail pipe includes long limit handrail pipe and minor face handrail pipe, long limit handrail pipe sets up respectively in the both sides at station riser top with the minor face handrail pipe, just long limit handrail pipe sets up with minor face handrail pipe mutually perpendicular, all be provided with the connecting block on the both sides at station riser top, the top bilateral symmetry of impeller articulates there is the linkage piece, driven piece, guide block, supporting shoe and locating piece one-to-one are in connecting block and linkage piece setting.

So set up, all be provided with the connecting pipe through the pipe both sides of standing for the gliding in-process of impeller can drive long limit handrail pipe simultaneously through the linkage piece and fold with minor face handrail pipe and receive, realizes that an impeller can link long limit handrail pipe and minor face handrail pipe, improves the convenience of receiving and receipts.

Further setting: the pushing piece comprises a connecting rod sliding on the standing pipe and a sliding block fixed at the top of the connecting rod, a fixed piece is fixedly arranged at one side, close to the handrail pipe, of the top end of the sliding block, the linkage block is hinged to the fixed piece, and a sliding groove for the sliding block to slide is formed in the standing pipe along the axial direction of the standing pipe.

So set up, through the pulling connecting rod for the pull rod drives the sliding block and slides in the sliding tray, thereby drives the stationary blade gliding, drives linkage piece by the stationary blade and moves down, thereby realizes the linkage, drives handrail pipe folding receipts to close on standing the riser.

Further setting: the sliding block is far away from the standing pipe and has seted up the constant head tank along its axial direction on the surface, it is provided with the stopper to slide on the constant head tank, set up the restricted line hole along the tubular axial direction of standing in the constant head tank, wear to establish restricted line hole and with stand a tub fixed connection in one side of stopper, the stopper is located the relative slip of restricted line hole, and sliding distance and sliding block drive handrail pipe receipts are closed and are unanimous at the sliding distance when standing on the stand pipe.

So set up, through passing the stopper limit line hole and be fixed in on the riser of standing for the stopper relative slip is downthehole in the limit line, at the in-process that the connecting rod drove the sliding block gliding, the sliding block receives the restriction of stopper on the constant head tank, prevent that the sliding block from breaking away from the sliding tray, and the sliding distance of stopper in the limit line hole is unanimous with the sliding distance of sliding block, thereby receive back on the riser of standing at the handrail pipe receipts, the sliding distance of sliding block is fixed, stability when the handrail pipe is received in order to improve receipts or to expand the handrail pipe.

Further setting: the middle position department on the sliding tray is fixed and is provided with spacing piece, be provided with the guide way on the spacing piece, the connecting rod slides and wears to establish the guide way setting.

So set up, the gliding in-process of connecting rod, the connecting rod middle part receives the restriction of the guide way on the spacing piece, and the slip is lifted steadily to the guide connecting rod, improves the gliding stability of impeller to the receipts of stable control handrail pipe are closed and are folded.

Further setting: the bottom of the connecting rod is fixedly provided with a moving block which slides on the bottom of the sliding groove, one end, away from the connecting rod, of the moving block is hinged with a swing rod, one end, away from the moving block, of the swing rod is hinged with a power rod, and when the power rod rotates upwards around the hinged position of the power rod and the swing rod, the swing rod moves downwards to drive the connecting rod to descend.

So set up, upwards rotate through the power rod for the power rod drives the swinging arms swing, thereby drives the connecting rod and goes up and down downwards, realizes the control connecting rod and goes up and down, so that drive handrail pipe through linkage piece and four-bar linkage and fold.

By adopting the technical scheme, the utility model discloses relative prior art compares, has following advantage:

1. the four-bar linkage mechanism is formed by the guide block, the connecting block, the driven block and the linkage block, and the linkage block drives the driven block to swing downwards in the process that the pushing piece slides on the standing pipe in a lifting manner, so that the handrail pipe is subjected to unloading force and swings downwards around a hinge point of the handrail pipe and the standing pipe, the folding and the folding of the handrail pipe are realized, the four-bar linkage mechanism is adopted, the linkage process is more stable, the pushing piece replaces a traction rope for traction, and the stability and the convenience of the folding and the folding of the handrail pipe on the standing pipe are improved;

2. the driven block and the connecting block are provided with supporting positioning points through the positioning blocks so as to improve the stability of the linkage process and facilitate the folding of the handrail tube on the station vertical tube;

3. the connecting rod and the sliding block slide on the sliding groove of the standing pipe in a lifting manner, so that the handrail pipe can be driven to be folded, the traction rope is driven by the connecting rod and the sliding block, the winding in the linkage process is avoided, the linkage stability is improved, and the joint of the handrail pipe and the standing pipe can be conveniently folded;

4. through the in-process that the connecting rod goes up and down, can drive long limit handrail pipe and minor face handrail pipe simultaneously and fold and receive, improve the convenience that the joint department of handrail pipe and the pipe of standing received.

Drawings

FIG. 1 is a schematic structural view of a joint linkage structure;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is a schematic view of the overall structure of the baby crib.

In the figure: 1. a standing pipe; 11. a sliding groove; 12. a limiting sheet; 121. a guide groove; 2. a handrail tube; 21. a yielding groove; 22. a long-side handrail tube; 23. a short side handrail tube; 3. a pusher member; 31. a connecting rod; 32. a slider; 321. a fixing sheet; 322. positioning a groove; 323. a line limiting hole; 33. a limiting block; 4. connecting blocks; 5. a linkage block; 6. a driven block; 7. a guide block; 8. a support block; 9. positioning blocks; 10. a moving block; 101. a swing lever; 102. a power rod.

Detailed Description

The joint linkage structure is further described with reference to fig. 1 to 3.

The utility model provides a joint linkage structure, as shown in figure 1, including standing riser 1 and the handrail pipe 2 that 1 top of standing riser is connected, the fixed connecting block 4 that is provided with in 1 top of standing riser, connecting block 4 are provided with two, and two connecting blocks 4 set up respectively on the both sides of standing riser 1, and handrail pipe 2 includes long limit handrail pipe 22 and minor face handrail pipe 23, and long limit handrail pipe 22 articulates respectively in the top of connecting block 4 with the one end of minor face handrail pipe 23.

As shown in fig. 1, a pushing member 3 is provided to be slid up and down on a side wall of the standing pipe 1 in the axial direction thereof, and the pushing member 3 is provided on a surface of the standing pipe 1 between the long-side handrail pipe 22 and the short-side handrail pipe 23. Specifically, the pushing member 3 includes a connecting rod 31 sliding on the standing pipe 1 and a sliding block 32 fixed on the top of the connecting rod 31, wherein a sliding groove 11 for the sliding block 32 to slide is formed on the surface of the standing pipe 1 along the axial direction thereof, and the sliding block 32 slides in the sliding groove 11 in a lifting manner. Further, the fixed spacing piece 12 that is provided with in middle part position department of sliding tray 11, spacing piece 12 span the notch of sliding tray 11, and be provided with guide way 121 on spacing piece 12 is close to the surface of sliding tray 11, and connecting rod 31 slides and wears to establish the setting of guide way 121, goes up and down through control connecting rod 31, can drive sliding block 32 and go up and down to slide in sliding tray 11.

As shown in fig. 1 and 3, in order to facilitate the control of the lifting and lowering of the connecting rod 31 of the pusher 3, the bottom of the connecting rod 31 is fixed to the moving block 10 sliding on the bottom of the sliding groove 11, one end of the moving block 10 away from the connecting rod 31 is hinged to a swinging rod 101, one end of the swinging rod 101 away from the moving block 10 is hinged to a power rod 102, and when the power rod 102 rotates upward around the hinged point with the swinging rod 101, the swinging rod 101 moves downward to drive the connecting rod 31 to descend. Usually, a base is arranged at the bottom of the standing tube 1 of the crib, the central point of the power rod 102 is rotatably installed in the base, and the side wall of the standing tube extends out of the base and is hinged with the insertion tube of the crib, so that after the unlocking device is unlocked, the power rod 102 can be driven to swing in the process of retracting the insertion tube, and the connecting rod 31 is adjusted to lift.

As shown in fig. 1 and 2, a linkage block 5 is hinged to one side of the top of the pushing member 3 close to the handrail tube 2, wherein fixing pieces 321 are fixedly arranged at two sides of the top end of the sliding block 32 close to the handrail tube 2, the fixing pieces 321 are arranged corresponding to the long-side handrail tube 22 and the short-side handrail tube 23, and the linkage block 5 is hinged to the fixing pieces 321. Keep away from the one end of impeller 3 at linkage block 5 and articulate there is driven piece 6, the one end of keeping away from connecting block 4 at driven piece 6 articulates there is guide block 7, articulate in connecting block 4 bottom in the one end of guide block 7, the other end articulates there is the supporting shoe 8, the one end of keeping away from guide block 7 at supporting shoe 8 articulates on handrail pipe 2, when impeller 3 descends, impeller 3 drives linkage block 5 lower hem, by linkage block 5, driven piece 6, guide block 7 and connecting block 4 form four-bar linkage 31 mechanism, thereby drive the pendulum on the supporting shoe 8, handrail pipe 2 can be swung down around the pin joint this moment, thereby receive handrail pipe 2 on standing riser 1. In order to improve the swing stability of the four-bar linkage mechanism, the driven block 6 is hinged to a positioning block 9 in one end of the connecting block 4, and one end, far away from the driven block 6, of the positioning block 9 is hinged to the middle position of the connecting block 4, so that the swing of the driven block 6 is limited, and the swing amplitude of the driven block 6 is prevented from being too large. Wherein, offer on the handrail pipe 2 and supply the spacing groove of stepping down 21 of pin joint, when handrail pipe 2 receipts were closed, the pin joint of supporting shoe 8 and guide block 7 inlayed and is located the groove of stepping down 21 to improve the convenience that handrail pipe 2 receipts were closed. Meanwhile, in order to facilitate folding of the long-side handrail tube 22 and the short-side handrail tube 23, the linkage block 5, the driven block 6, the guide block 7, the support block 8 and the positioning block 9 are arranged in one-to-one correspondence to the fixing piece 321 and the connecting block 4.

As shown in fig. 1, in order to further provide guidance for the sliding block 32, a positioning groove 322 is disposed on the surface of the sliding block 32 away from the station vertical pipe 1 along the axial direction of the sliding block, a limiting block 33 is slidably disposed on the positioning groove 322, a limiting hole 323 is disposed in the positioning groove 322 along the axial direction of the station vertical pipe 1, one side of the limiting block 33 penetrates through the limiting hole 323 and is fixedly connected with the station vertical pipe 1, the limiting block 33 is located in the limiting hole 323 and slides up and down relatively, and the sliding distance is consistent with the sliding distance when the sliding block 32 drives the handrail pipe 2 to be folded on the station vertical pipe 1, so as to control the sliding distance of the sliding block 32, so that the handrail pipe 2 can be folded and unfolded conveniently, and the convenience.

The working principle is as follows: when the baby crib is folded, the unlocking device is unlocked, the insertion pipe piece of the baby crib is folded, and the driving station vertical pipe 1 is folded in the folding process. At this time, the power rod 102 is pulled to swing so as to drive the swing rod 101 to swing, the swing rod 101 drives the connecting rod 31 to descend in the swinging process, the connecting rod 31 descends to drive the sliding block 32 to descend, the linkage block 5 is driven to swing downwards through the fixing piece 321, the linkage block 5 drives the driven block 6 to swing downwards, the guide block 7 is driven by the connecting block 4, the driven block 6 and the linkage block 5 form a four-connecting-rod 31 mechanism, the driven block 6 drives the guide block 7 to swing towards the direction close to the connecting block 4 in the swinging process, the supporting block 8 is driven to swing upwards, the handrail tube 2 is discharged, the handrail tube 2 swings downwards around a hinged point of the handrail tube 2 and the station vertical tube 1, and the folding of the handrail tube 2 are realized. Through the scheme, the folding of handrail tube 2 is closed, only need control pushing part 3 and slide downwards, can drive handrail tube 2 through the linkage and fold to open and close, adopts four-bar linkage 31 mechanism, and the linkage process is more stable, utilizes connecting rod 31 and sliding block 32 to replace the traction mode of haulage rope, improves the stability of linkage to realize improving handrail tube 2 and close stability and the convenience on standing riser 1.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a joint linkage structure, includes handrail pipe (2) that stand riser (1) and stand riser (1) top are connected, its characterized in that: the standing pipe (1) is provided with a pushing piece (3) along the axial direction in a sliding way, the top of the standing pipe (1) is fixedly provided with a connecting block (4), one end of the handrail tube (2) is hinged on the top of the connecting block (4), one side of the top of the pushing piece (3) close to the handrail tube (2) is hinged with a linkage block (5), one end of the linkage block (5) far away from the pushing piece (3) is hinged with a driven block (6), one end of the driven block (6) far away from the connecting block (4) is hinged with a guide block (7), one end of the guide block (7) is hinged at the bottom of the connecting block (4), the other end is hinged with a supporting block (8), one end of the supporting block (8) far away from the guide block (7) is hinged on the handrail tube (2), when the pushing piece (3) descends, the handrail tube (2) is folded on the standing tube (1).

2. A joint linkage structure according to claim 1, wherein: the driven block (6) is hinged to a positioning block (9) in the inner portion of one end of the connecting block (4), and one end, far away from the driven block (6), of the positioning block (9) is hinged to the middle position of the connecting block (4).

3. A joint linkage structure according to claim 1, wherein: offer on handrail pipe (2) and supply spacing groove of stepping down (21) of pin joint, when handrail pipe (2) were closed, the pin joint of supporting shoe (8) and guide block (7) inlays and is located groove of stepping down (21).

4. A joint linkage structure according to claim 1, wherein: handrail pipe (2) are including long limit handrail pipe (22) and minor face handrail pipe (23), long limit handrail pipe (22) set up respectively in the both sides at stand pipe (1) top with minor face handrail pipe (23), just long limit handrail pipe (22) set up with minor face handrail pipe (23) mutually perpendicular, all be provided with connecting block (4) on the both sides at stand pipe (1) top, the top bilateral symmetry of impeller (3) articulates there is linkage piece (5), driven piece (6), guide block (7), supporting shoe (8) and locating piece (9) one-to-one sets up with linkage piece (5) connecting block (4).

5. A joint linkage structure according to claim 1, wherein: the pushing piece (3) comprises a connecting rod (31) sliding on the standing pipe (1) and a sliding block (32) fixed to the top of the connecting rod (31), a fixing piece (321) is fixedly arranged on one side, close to the handrail tube (2), of the top end of the sliding block (32), the linkage block (5) is hinged to the fixing piece (321), and a sliding groove (11) for the sliding block (32) to slide is formed in the standing pipe (1) in the axial direction of the standing pipe.

6. A joint linkage structure according to claim 5, wherein: sliding block (32) are far away from standing riser (1) and have been seted up constant head tank (322) along its axial direction on the surface, it is provided with stopper (33) to slide on constant head tank (322), spacing hole (323) have been seted up along standing riser (1) axial direction in constant head tank (322), one side of stopper (33) is worn to establish spacing hole (323) and with standing riser (1) fixed connection, stopper (33) are located spacing hole (323) relative slip, and sliding distance and sliding block (32) drive handrail pipe (2) and close the sliding distance when standing riser (1) is gone up unanimously.

7. A joint linkage structure according to claim 5, wherein: the middle position department on sliding tray (11) is fixed and is provided with spacing piece (12), be provided with guide way (121) on spacing piece (12), connecting rod (31) slide and wear to establish guide way (121) and set up.

8. A joint linkage structure according to claim 5, wherein: the bottom of the connecting rod (31) is fixedly provided with a moving block (10) which slides at the bottom of the sliding groove (11), one end, far away from the connecting rod (31), of the moving block (10) is hinged to a swinging rod (101), one end, far away from the moving block (10), of the swinging rod (101) is hinged to a power rod (102), and when the power rod (102) rotates upwards around the hinged position of the swinging rod (101), the swinging rod (101) moves downwards to drive the connecting rod (31) to descend.

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