CN217243477U - Folding bed convenient to expand and receive - Google Patents

Abstract

The utility model relates to a folding bed technology, which is used for solving the problem that the folding operation of a children bed is complicated and is not beneficial to carrying, and simultaneously, the children bed is easy to collapse due to the lack of a locking mechanism, in particular to a folding bed which is convenient to unfold and fold; the utility model discloses an unblock piece can make the unblock piece rise along promoting the piece when rotating, jack-up the holding ring, the holding ring below breaks away from the holding ring lateral wall, holding ring and holding ring rotate relatively, realize the relative rotation of first loop bar and second loop bar, make children's folding bed have higher stability, the security when using has been guaranteed again, and the fifty percent discount pole rotates with the vertical axis to be connected, wherein set of notch has been seted up on the vertical axis of one side, and the fifty percent discount pole of this side is provided with the sleeve spindle with the vertical axis junction, make the fifty percent discount pole of this side can slide from top to bottom in the vertical axis outside, the fifty percent discount pole of this side can be adjusted to the height different with the fifty percent discount pole of opposite side when folding, mutual interference when avoiding two sets of fifty percent discount poles to adduction, folding bed use and make the flexibility has greatly been improved.

Description

Folding bed convenient to expand and receive

Technical Field

The utility model relates to a folding bed technique specifically is a folding bed convenient to expand and receive and close.

Background

The bed is generally used in places such as bedrooms, dormitories, wards, hotels and the like, and is generally used for meeting daily sleeping of human beings, and when the child bed needs to have the functions, the child bed also needs to be additionally provided with a function convenient to carry so as to meet the problem that the sleeping time of infants is long.

The existing folding bed for children has certain disadvantages, and the existing folding bed for children is often complex in folding operation, time-consuming, labor-consuming and inconvenient to use; meanwhile, the folding bed for children usually has general stability when pursuing folding functions, and is easy to collapse due to locking failure of the unfolded bed for children when in use, so that the folding bed for children is not beneficial to safe use of infants.

In view of the above technical problem, the present application proposes a solution.

SUMMERY OF THE UTILITY MODEL

In the utility model, the cable on the driving block drives the unlocking block to rotate, the unlocking block can lead the unlocking block to rise along the lifting block when rotating, thereby jacking up the positioning ring, the lower part of the positioning ring is separated from the side wall of the locking ring, thereby realizing the relative rotation of the positioning ring and the locking ring, and further realizing the relative rotation of the first loop bar and the second loop bar, when the driving block is not pulled, the first loop bar and the second loop bar are simultaneously clamped and connected on the positioning ring, so that the first loop bar and the second loop bar can not rotate, thereby leading the folding bed for children to have higher stability when in use or in folding, being convenient to carry and ensuring the safety when in use, and the folding bar is rotationally connected with the vertical shaft, two groups of notches are arranged on the vertical shaft on one side, and the sleeve shaft is arranged at the connection part of the folding bar and the vertical shaft on the side, leading the folding bar on the side to slide up and down outside the vertical shaft, when using, not co-altitude can be adjusted to the fifty percent discount pole of this side to make children can lie prone at this side fifty percent discount pole edge, and the fifty percent discount pole of this side can be adjusted to the height different with the fifty percent discount pole of opposite side when folding, mutual interference when avoiding two sets of fifty percent discount poles to adduction, greatly improved the folding bed and used and make the flexibility, the folding operation of solving the crib is complicated to carry and lacks locking mechanical system and the problem of collapsing easily simultaneously, and provide a folding bed convenient to expand and receive.

The purpose of the utility model can be realized by the following technical scheme:

a folding bed convenient to unfold and fold comprises a front cover plate and a rear cover plate, wherein the front cover plate and the rear cover plate are symmetrically arranged, the cross sections of the front cover plate and the rear cover plate are in a concave structure, a second folding rod and a second matching rod are movably connected to the inner wall of the front cover plate, and a first folding rod and a first matching rod are interactively connected to the inner part of the rear cover plate;

through locking mechanical system swing joint between second fifty percent discount pole and the first fifty percent discount pole, the bed board has been laid with the top of second cooperation pole to first cooperation pole, the equal fixedly connected with vertical axis of back shroud and front shroud inner wall, first fifty percent discount pole passes through coupling mechanism and is connected with vertical axis, and two sets of fifty percent discount poles all are certain contained angle with the level when packing up, and contained angle opposite direction, are parallel to each other between the fifty percent discount pole of the left and right sides, and the fifty percent discount pole of the left and right sides is located same height with the tie point of vertical axis.

As a preferred embodiment of the utility model, the sleeve shaft has been cup jointed to the vertical axis outer wall, perpendicular adapter sleeve has been cup jointed to the sleeve shaft outer wall, perpendicular adapter sleeve has all seted up the round hole along vertical and level, first pair of folding rod is pegged graft in perpendicular adapter sleeve horizontal direction's round hole, first pair of folding rod is located the inside partial sliding connection of perpendicular adapter sleeve and has the slip tapered end, the unlocking groove has been seted up to slip tapered end lateral wall, the inside sliding connection of unlocking groove has presses the briquetting, perpendicular adapter sleeve all sets up porosely with first pair of folding rod is close to the position of pressing the briquetting, press the briquetting lateral wall to wear out first pair of folding rod and locating lever, vertical axis and sleeve shaft outer wall are provided with positioning mechanism.

As a preferred embodiment of the utility model, interior constant head tank has been seted up to the vertical axis outer wall, the positioning mechanism of vertical axis outer wall is including interior constant head tank and outer constant head tank, interior constant head tank has been seted up to the vertical axis outer wall, outer constant head tank has been seted up to the sleeve side wall, the one end fixedly connected with locating lever of slip tapered end orientation vertical axis, the locating lever runs through outer constant head tank and inserts to interior constant head tank.

As a preferred embodiment of the utility model, the upper surface of the bottom plate is movably connected with a torsional spring, the locking mechanism comprises a first loop bar, a second loop bar, a positioning ring, an unlocking block, a torsional spring, a bottom plate and a locking ring, the first loop bar is fixedly connected with one end of the first folding bar close to the second folding bar, the second loop bar is fixedly connected with one end of the second folding bar close to the first folding bar, the outer side of the first loop bar is fixedly connected with a round cover, the outer side of the second loop bar is fixedly connected with a locking ring, the middle part of the locking ring is rotatably connected with a hollow pin shaft, the bottom plate is fixedly connected with the lower part of the round cover through the hollow pin shaft, the positioning ring is clamped and connected between the lower surface of the round cover and the side wall of the locking ring, the upper surface of the locking ring is clamped and connected with an unlocking block, the unlocking block and the outer wall of the hollow pin shaft are both sleeved, a supporting wheel is movably connected between the first matching bar and the second matching bar, the supporting wheel is fixedly connected with a reinforcing rod, the front cover plate and the rear cover plate are fixedly connected with mounting blocks below, and walking wheels are rotatably connected to the lower portions of the mounting blocks.

As an embodiment of the present invention, the bottom plate has a torsion spring movably connected to the upper surface thereof, one end of the torsion spring is fastened to the sidewall of the bottom plate, and the other end of the torsion spring is fastened to the lower surface of the locking ring.

As a preferred embodiment of the utility model, installation piece below sliding connection has the pull rod, the inside fixedly connected with lifting block of locking fixed ring with block the piece, the transverse wedge structure of personally submitting of lifting block, the cable groove has been seted up to unblock piece one side, unblock piece opposite side fixedly connected with stopper.

As a preferred embodiment of the utility model, installation piece below sliding connection has the pull rod, the one end elastic connection that the pull rod is close to the walking wheel has the piece of sliding, slide piece outer end fixedly connected with inserted bar, installation piece lower surface rotates and is connected with the pivot, walking wheel bottom fixed connection pivot, the jack has been seted up to the pivot lateral wall, the inserted bar is pegged graft inside this jack.

As a preferred embodiment of the utility model, the one end fixedly connected with handle of walking wheel is kept away from to the pull rod, two sets of recesses have been seted up to the pull rod lateral wall, installation piece and pull rod junction fixedly connected with are protruding, and this protruding block is connected in the recess of pull rod lateral wall.

As an optimal implementation mode of the utility model, back shroud top block is connected with puts the thing platform, back shroud lateral wall swing joint has the drive block, the drive block inboard links to each other with the unblock piece through the cable, and the one end that this cable is close to the unblock piece is laid at cable inslot portion.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, it rotates to drive the unlocking piece through the cable on the drive block, and the unlocking piece can make the unlocking piece rise along the promotion piece when rotating, thereby with holding ring jack-up, the holding ring below breaks away from the locking collar lateral wall, realize the relative rotation of holding ring and locking collar, and then realize the relative rotation of first loop bar and second loop bar, and when not pulling the drive block, first loop bar is connected on the holding ring with second loop bar block simultaneously, make first loop bar and second loop bar can not take place to rotate, thereby make children's folding bed no matter still have higher stability when receiving when using, and is convenient to carry, the security when having guaranteed the use again.

2. The utility model discloses in, the fifty percent discount pole rotates with the vertical axis to be connected, wherein two sets of notches have been seted up on the vertical axis of one side, and the fifty percent discount pole of this side is provided with the sleeve axle with vertical axis junction, make the fifty percent discount pole of this side can slide from top to bottom in the vertical axis outside, when using, not co-altitude can be adjusted to the fifty percent discount pole of this side, thereby make children can lie prone at this side fifty percent discount pole edge, and the fifty percent discount pole of this side can be adjusted to the height different with the fifty percent discount pole of opposite side when folding, mutual interference when avoiding two sets of fifty percent discount poles to adduction, greatly improved the folding bed and used and make the flexibility.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of the locking mechanism of the present invention;

fig. 4 is a schematic structural view of the unlocking block of the present invention;

FIG. 5 is a schematic view of the vertical shaft structure of the present invention;

fig. 6 is a schematic view of the structure of the vertical connecting sleeve of the present invention;

fig. 7 is a schematic view of the sleeve structure of the present invention;

fig. 8 is a schematic view of the structure of the mounting block of the present invention;

fig. 9 is a schematic view of the structure of the jack of the present invention;

fig. 10 is a schematic view of the cover plate of the present invention;

fig. 11 is a schematic view of the folding mode of the folding bed of the present invention.

In the figure: 1. a front cover plate; 2. a rear cover plate; 3. a placing table; 4. a first folding bar; 41. a vertical connecting sleeve; 42. a sleeve shaft; 421. an outer positioning groove; 43. a sliding lock head; 431. an unlocking groove; 44. pressing the block; 45. positioning a rod; 5. a second diagonal bar; 6. a locking mechanism; 61. a first loop bar; 62. a second loop bar; 63. a positioning ring; 64. an unlocking block; 641. a cable groove; 642. a limiting block; 65. a torsion spring; 66. a base plate; 67. a locking ring; 671. a lifting block; 672. a blocking block; 68. a dome; 7. a vertical axis; 71. an inner positioning groove; 8. a first mating bar; 9. a second mating bar; 10. a support wheel; 11. a traveling wheel; 12. a reinforcing bar; 13. mounting blocks; 14. a pull rod; 15. a sliding block; 16. inserting a rod; 17. a rotating shaft; 18. a drive block; 19. a bed board.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-4, a folding bed convenient for unfolding and folding comprises a front cover plate 1 and a rear cover plate 2, wherein the front cover plate 1 and the rear cover plate 2 are symmetrically arranged, a plurality of groups of wave grooves are formed on the side walls of the front cover plate 1 and the rear cover plate 2 to increase the strength of the front cover plate 1 and the rear cover plate 2, the cross sections of the front cover plate 1 and the rear cover plate 2 are in a concave structure, so that the front cover plate 1 and the rear cover plate 2 can be combined into a box-shaped rectangular structure, the inner wall of the front cover plate 1 is movably connected with a second folding rod 5 and a second matching rod 9, the second folding rod 5 and the second matching rod 9 can horizontally rotate inside the front cover plate 1, the rear cover plate 2 is internally and interactively connected with a first folding rod 4 and a first matching rod 8, the first folding rod 4 and the first matching rod 8 can horizontally rotate inside the rear cover plate 2, the second folding rod 5 and the second matching rod 9 are movably connected through a locking mechanism 6, the locking mechanism 6 is used for preventing the relative rotation between the second opposite folding rod 5 and the second matching rod 9, the second matching rod 9 is movably connected with the first matching rod 8, a bed board 19 is laid above the first matching rod 8 and the second matching rod 9, and a quilt and clothes for children to sleep are placed above the bed board;

the locking mechanism 6 comprises a first sleeve rod 61, a second sleeve rod 62, a positioning ring 63, an unlocking block 64, a torsion spring 65, a bottom plate 66 and a locking ring 67, the first sleeve rod 61 is fixedly connected to one end, close to the second folded rod 5, of the first folded rod 4 through a bolt, the second sleeve rod 62 is fixedly connected to one end, close to the first folded rod 4, of the second folded rod 5 through a bolt, a round cover 68 is fixedly connected to the outer side of the first sleeve rod 61, a locking ring 67 is fixedly connected to the outer side of the second sleeve rod 62, the round cover 68 is positioned above the locking ring 67, a hollow pin shaft is rotatably connected to the middle of the locking ring 67, the bottom plate 66 is fixedly connected to the lower side of the round cover 68 through the hollow pin shaft, the torsion spring 65 is movably connected to the upper surface of the bottom plate 66, one end of the torsion spring 65 is connected to the side wall of the bottom plate 66 in a clamping manner, and the other end of the torsion spring 65 is connected to the lower surface of the locking ring 67 in a clamping manner, so that the bottom plate 66 and the locking ring 67 have a straightening tendency in a natural state, the positioning ring 63 is connected between the lower surface of the round cover 68 and the side wall of the locking ring 67 in a clamping manner, a groove matched with the positioning ring 63 in shape is formed in the lower surface of the round cover 68, the unlocking block 64 is connected to the upper surface of the locking ring 67 in a clamping manner, the unlocking block 64 and the unlocking block 64 are both sleeved on the outer wall of the hollow pin shaft, the lifting block 671 and the blocking block 672 are fixedly connected inside the locking ring 67, the cross section of the lifting block 671 is of a wedge-shaped structure, a plurality of groups of lifting blocks 671 are distributed around the hollow pin shaft in a circular ring shape, the unlocking block 64 is connected to the outer part of the lifting block 671 in a clamping manner, a cable groove 641 is formed in one side of the unlocking block 64, a limiting block 642 is fixedly connected to the other side of the unlocking block 64, when a cable pulls the unlocking block 64 through the cable groove 641, the unlocking block 64 can rotate, the unlocking block 64 can ascend along the inclined plane of the lifting block 671 when rotating, so that the unlocking block 64 integrally ascends, and the positioning ring 63 can be jacked upwards when the unlocking block 64 ascends, the positioning ring 63 is lifted up, the bottom is separated from the locking ring 67, so that the positioning ring 63 and the locking ring 67 can rotate mutually to realize the mutual rotation of the first loop bar 61 and the second loop bar 62, when the angle is rotated to a proper angle, the cable is loosened, the unlocking block 64 slides down along the lifting block 671 under the action of gravity, so that the positioning ring 63 is clamped into the locking ring 67 again to realize the relative locking of the locking ring 67 and the round cover 68, the supporting wheels 10 are movably connected between the first matching rod 8 and the second matching rod 9, the reinforcing rods 12 are fixedly connected between the two groups of supporting wheels 10 to ensure the strength of the first matching rod 8 and the second matching rod 9, the mounting blocks 13 are fixedly connected below the front cover plate 1 and the rear cover plate 2, the traveling wheels 11 are rotatably connected below the mounting blocks 13 to facilitate the pushing of the folding bed to move, the object placing table 3 is connected to the top of the rear cover plate 2 for placing sundries, the side wall of the rear cover plate 2 is movably connected with a driving block 18, the inner side of the driving block 18 is connected with an unlocking block 64 through a cable, the unlocking block 64 is driven to rotate by pulling the driving block 18, and one end of the cable close to the unlocking block 64 is laid inside the cable groove 641.

Example two:

referring to fig. 5-11, a vertical shaft 7 is fixedly connected to an inner wall of the rear cover plate 2, a sleeve shaft 42 is sleeved on an outer wall of the vertical shaft 7, the sleeve shaft 42 can slide up and down on the outer wall of the vertical shaft 7, a vertical connecting sleeve 41 is sleeved on an outer wall of the sleeve shaft 42, round holes are formed in the vertical connecting sleeve 41 along the vertical direction and the horizontal direction to form a T-shaped three-way joint, a first pair of folding rods 4 are inserted into the round holes in the horizontal direction of the vertical connecting sleeve 41, a sliding lock 43 is slidably connected to a part of the first pair of folding rods 4 located inside the vertical connecting sleeve 41, an unlocking groove 431 is formed in a side wall of the sliding lock 43, a wedge-shaped inclined surface is arranged inside the unlocking groove 431, a pressing block 44 is slidably connected inside the unlocking groove 431, when the pressing block 44 is pressed down, the side wall of the pressing block 44 can press the wedge-shaped inclined surface inside the unlocking groove 431, so that the sliding lock 43 slides towards the direction opposite to the wedge-shaped inclined surface, holes are formed in positions of the vertical connecting sleeve 41 and the first pair of the folding rods 4 close to the pressing block 44, the side wall of the pressing block 44 penetrates through the first folding rod 4 and the positioning rod 45, so that the bottom end of the pressing block 44 is exposed and is convenient to press, and simultaneously, the pressing block 44 is ensured to be pressed down only along a straight line without translation, and the vertical connecting sleeve 41 and the first folding rod 4 are ensured to be relatively fixed through the penetrating pressing block 44, the outer wall of the vertical shaft 7 is provided with two groups of inner positioning grooves 71, the inner positioning grooves 71 are horizontally arranged, the side wall of the sleeve shaft 42 is provided with two groups of outer positioning grooves 421, the outer positioning grooves 421 are also horizontally arranged, one end of the sliding lock head 43 facing the vertical shaft 7 is fixedly connected with the positioning rod 45, the positioning rod 45 penetrates through the outer positioning grooves 421 and is inserted into the inner positioning grooves 71, and meanwhile, the inner positioning grooves 71 and the outer positioning grooves 421 have certain length in the horizontal direction, so that the vertical connecting sleeve 41 can horizontally rotate outside the sleeve shaft 42, the vertical sliding of the sleeve shaft 42 is limited by the positioning rod 45 to slide up and down, and the pressing block 44 can be pressed down, the sliding lock head 43 and the positioning rod 45 are retracted, and then the height of the sleeve shaft 42 on the vertical shaft 7 is selected by selecting different inner positioning grooves 71 into which the positioning rod 45 is inserted, so that two pairs of folding rods form a certain included angle with the horizontal when retracted, the included angles are opposite in direction, the folding rods on the left side and the right side are parallel to each other, and the connecting points of the folding rods on the left side and the right side and the vertical shaft 7 are positioned at the same height;

a pull rod 14 is connected below the mounting block 13 in a sliding manner, two groups of grooves are formed in the side wall of the pull rod 14, a protrusion is fixedly connected at the joint of the mounting block 13 and the pull rod 14 and is clamped and connected in the groove in the side wall of the pull rod 14, so that the pull rod 14 can only select between two positions, one end, close to the walking wheels 11, of the pull rod 14 is elastically connected with a sliding block 15, when the pull rod 14 is pushed inwards, the sliding block 15 is driven to slide inwards, the outer end of the sliding block 15 is fixedly connected with an insertion rod 16, the sliding block 15 drives the insertion rod 16 to slide, the lower surface of the mounting block 13 is rotatably connected with a rotating shaft 17, the bottom end of each walking wheel 11 is fixedly connected with the rotating shaft 17, the side wall of the rotating shaft 17 is provided with an insertion hole, the insertion rod 16 can be inserted into the insertion hole when sliding inwards, so that the rotation of the rotating shaft 17 is limited, the walking wheels 11 can only rotate along one direction, one end, far away from the walking wheels 11, of the pull rod 14, is fixedly connected with a handle, facilitating control of the pull rod 14.

With the first and second embodiments, the working principle is as follows:

in the utility model, when the folding bed is unlocked, the driving block 18 is firstly pulled outwards to drive the unlocking block 64 to rotate through the inhaul cable, the unlocking block 64 is lifted along the lifting block 671 when rotating, when the unlocking block 64 is rotated to the limit block 642 and abutted to the blocking block 672, the positioning ring 63 is ejected out of the locking ring 67 by the unlocking block 64, so that the round cover 68 and the locking ring 67 can rotate mutually, the locking ring 67 and the bottom plate 66 rotate under the action of the torsion spring 65 to drive the first loop bar 61 and the second loop bar 62 connected with the locking ring to rotate mutually to the same linear direction, so that the first folding bar 4 and the second folding bar 5 are opened to complete the unfolding of the folding bed, and simultaneously, when the heights of the first folding bar 4 and the second folding bar 5 on one side need to be adjusted, the pressing block 44 is pressed down to enable the sliding lock 43 and the positioning rod 45 to be retracted, the positioning rod 45 is separated from the inner positioning groove 71 and the outer positioning groove 421, the height of the sleeve shaft 42 on the vertical shaft 7 is then selected by selecting the different inner positioning slots 71 into which the positioning rods 45 are inserted.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (9)

1. A folding bed convenient to unfold and fold comprises a front cover plate (1) and a rear cover plate (2), wherein the front cover plate (1) and the rear cover plate (2) are symmetrically arranged, and the cross sections of the front cover plate (1) and the rear cover plate (2) are in a concave structure, and is characterized in that a second folding rod (5) and a second matching rod (9) are movably connected to the inner wall of the front cover plate (1), and a first folding rod (4) and a first matching rod (8) are interactively connected to the inside of the rear cover plate (2);

through locking mechanical system (6) swing joint between second fifty percent discount pole (5) and first fifty percent discount pole (4), bed board (19) have been laid with the top of second cooperation pole (9) first cooperation pole (8), back shroud (2) and the equal fixedly connected with vertical axis (7) of front shroud (1) inner wall, first fifty percent discount pole (4) are through coupling mechanism and vertical axis (7) to being connected, and two sets of fifty percent discount poles all are certain contained angle with the level when packing up, and contained angle opposite direction, are parallel to each other between the fifty percent discount pole of the left and right sides, and the fifty percent discount pole of the left and right sides is located same height with the tie point of vertical axis (7).

2. The folding bed convenient for unfolding and folding as claimed in claim 1, wherein a sleeve shaft (42) is sleeved on the outer wall of the vertical shaft (7), a vertical connecting sleeve (41) is sleeved on the outer wall of the sleeve shaft (42), round holes are formed in the vertical connecting sleeve (41) along the vertical direction and the horizontal direction, the first folding rod (4) is inserted into the round hole in the horizontal direction of the vertical connecting sleeve (41), a sliding lock head (43) is slidably connected to the part of the first folding rod (4) located inside the vertical connecting sleeve (41), an unlocking groove (431) is formed in the side wall of the sliding lock head (43), a pressing block (44) is slidably connected inside the unlocking groove (431), holes are formed in the pressing positions of the vertical connecting sleeve (41) and the first folding rod (4) close to the pressing block (44), and the side wall of the first folding rod (4) and the positioning rod (45) penetrate through the side wall of the sliding lock head (43), and the outer walls of the vertical shaft (7) and the sleeve shaft (42) are provided with positioning mechanisms.

3. The folding bed convenient for unfolding and folding as claimed in claim 2, wherein the positioning mechanism of the outer wall of the vertical shaft (7) comprises an inner positioning groove (71) and an outer positioning groove (421), the inner positioning groove (71) is formed in the outer wall of the vertical shaft (7), the outer positioning groove (421) is formed in the side wall of the sleeve shaft (42), the positioning rod (45) is fixedly connected to one end of the sliding lock head (43) facing the vertical shaft (7), and the positioning rod (45) penetrates through the outer positioning groove (421) and is inserted into the inner positioning groove (71).

4. The folding bed convenient for unfolding and folding as claimed in claim 1, wherein the locking mechanism (6) comprises a first loop bar (61), a second loop bar (62), a positioning ring (63), an unlocking block (64), a torsion spring (65), a bottom plate (66) and a locking ring (67), the first loop bar (61) is fixedly connected to one end of the first folding bar (4) close to the second folding bar (5), the second loop bar (62) is fixedly connected to one end of the second folding bar (5) close to the first folding bar (4), a round cover (68) is fixedly connected to the outer side of the first loop bar (61), the locking ring (67) is fixedly connected to the outer side of the second loop bar (62), a hollow pin is rotatably connected to the middle of the locking ring (67), the bottom plate (66) is fixedly connected to the lower side of the round cover (68) through the hollow pin, the positioning ring (63) is connected between the lower surface of the round cover (68) and the side wall of the locking ring (67), the utility model discloses a locking ring, including locking ring (67), locking piece.

5. The folding bed convenient for unfolding and folding as claimed in claim 4, wherein a torsion spring (65) is movably connected to the upper surface of the bottom plate (66), one end of the torsion spring (65) is connected to the side wall of the bottom plate (66) in a snap-fit manner, and the other end of the torsion spring (65) is connected to the lower surface of the locking ring (67) in a snap-fit manner.

6. The folding bed convenient for unfolding and folding as claimed in claim 4, wherein a lifting block (671) and a blocking block (672) are fixedly connected inside the locking ring (67), the cross section of the lifting block (671) is of a wedge structure, one side of the unlocking block (64) is provided with a cable groove (641), and the other side of the unlocking block (64) is fixedly connected with a limiting block (642).

7. The folding bed convenient to unfold and fold as claimed in claim 4, wherein a pull rod (14) is slidably connected below the mounting block (13), one end of the pull rod (14) close to the travelling wheels (11) is elastically connected with a sliding block (15), the outer end of the sliding block (15) is fixedly connected with an insertion rod (16), the lower surface of the mounting block (13) is rotatably connected with a rotating shaft (17), the bottom end of the travelling wheels (11) is fixedly connected with the rotating shaft (17), a side wall of the rotating shaft (17) is provided with an insertion hole, and the insertion rod (16) is inserted into the insertion hole.

8. The folding bed convenient for unfolding and folding as claimed in claim 7, wherein a handle is fixedly connected to one end of the pull rod (14) far away from the walking wheels (11), two sets of grooves are formed in the side wall of the pull rod (14), and a protrusion is fixedly connected to the joint of the mounting block (13) and the pull rod (14), and is clamped and connected in the groove in the side wall of the pull rod (14).

9. The folding bed convenient for unfolding and folding according to claim 1, wherein the top of the rear cover plate (2) is connected with the object placing table (3) in a snap-fit manner, the side wall of the rear cover plate (2) is movably connected with a driving block (18), the inner side of the driving block (18) is connected with the unlocking block (64) through a guy cable, and one end of the guy cable close to the unlocking block (64) is laid in the guy cable groove (641).

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