CN220713482U - Chassis structure and folding crib - Google Patents

Abstract

The utility model belongs to the technical field of cribs, and discloses a chassis structure and a folding crib, which comprise a central cross rod assembly and at least one pair of folding rods, wherein the two folding rods arranged in pairs are symmetrically arranged on two sides of the central cross rod assembly, one end of each folding rod is rotatably arranged with the central cross rod assembly around a horizontal first direction, the other end of each folding rod is rotatably connected with a bed body side plate of the folding crib, the central cross rod assembly comprises a locking assembly, the locking assembly comprises a fixing piece, a lock tongue, a locking button and a sliding piece, the lock tongue is connected with the sliding piece and is slidably arranged along the first direction, the locking button is penetrated through the fixing piece along a second direction, and the locking button is abutted or connected with the sliding piece, and when the locking button slides along the second direction, the lock tongue is driven to slide along the first direction, so that the locking tongue can be locked to keep a horizontal unfolding state or release the locking state of the folding rod to enable the folding crib, and the folding crib is simple in structure and convenient to operate.

Description

Chassis structure and folding crib

Technical Field

The utility model relates to the technical field of cribs, in particular to a chassis structure and a folding crib.

Background

The baby crib is common household equipment in daily life of modern families, particularly relates to a crib for babies, the babies cannot independently move, long-time bedridden or held by adults are needed, the common crib occupies large area and is inconvenient to carry, and the folding crib can be born. The chassis of the existing folding crib adopts a relatively complex structure for realizing the folding function, brings certain inconvenience to assembly and use, increases manufacturing cost and reduces user experience feel, so that a chassis structure and the folding crib are needed to solve the problems.

Disclosure of Invention

The utility model aims at:

on the one hand, provide a chassis structure, can remove the rotation restriction to folding rod through simple operation locking button, simple structure, convenient operation, low in production cost.

On the other hand, provide a folding crib, utilize chassis structure's folding and locking function, make the crib can fold and carry, be convenient for transport and go out to use and stable in structure effectively improve user experience and feel.

To achieve the purpose, the utility model adopts the following technical scheme:

in one aspect, a chassis structure is provided, comprising: the folding baby crib comprises a central cross rod assembly and at least one pair of folding rods, wherein the two folding rods are symmetrically arranged on two sides of the central cross rod assembly, one end of each folding rod is rotatably arranged around a horizontal first direction, the other end of each folding rod is configured to be rotatably connected with a crib body side plate of a folding baby crib, the central cross rod assembly comprises a locking assembly, the locking assembly comprises a fixing piece, a lock tongue, a locking button and a sliding piece, the lock tongue is connected with the sliding piece and is slidably arranged along the first direction, the locking button penetrates through the fixing piece along a second direction, the locking button is abutted to or connected with the sliding piece, and when the locking button slides along the second direction, the lock tongue is driven to slide along the first direction, so that the lock tongue reaches or is separated from a locking position capable of limiting the folding rod to be in a horizontal state.

Preferably, the sliding piece is provided with an inclined sliding rail which is arranged at an included angle with the horizontal plane, the locking button is provided with a sliding block, and the sliding block is in sliding connection with the inclined sliding rail.

Preferably, the inclined sliding rail is of a kidney-shaped groove structure; or alternatively

The inclined sliding rail is of an inclined surface structure, and the inclined sliding rail is abutted against the sliding block from the inclined lower side.

Preferably, the central cross bar assembly further comprises a connecting piece, one end of the connecting piece is connected with the fixing piece, the other end of the connecting piece is connected with the two folding rods arranged in pairs, and a first sliding rail for the lock tongue to slide along the first direction and a second sliding rail for the sliding piece to slide along the first direction are arranged in the connecting piece.

Preferably, the bottom of connecting piece is equipped with the supporting legs, the spring bolt sets up to the type of falling T structure, the spring bolt includes horizontal limit portion and vertical partition portion, works as the folding pole is in the horizontality just the spring bolt is located the locking position, the lower extreme butt of supporting legs is in ground, vertical partition portion inserts two that set up in pairs in the clearance between the adjacent one end of folding pole, horizontal limit portion is located two the below of folding pole is in order to restrict the folding pole rotates downwards.

Preferably, the locking assembly further comprises a reset elastic piece, the reset elastic piece penetrates through the connecting piece, one end of the reset elastic piece is in butt joint with the connecting piece, the other end of the reset elastic piece is in butt joint with the lock tongue, and the reset elastic piece has a trend of pushing the lock tongue to move to the locking position of the folding rod.

Preferably, the folding rod is provided with two pairs, the sliding part and the lock tongue are correspondingly provided with two pairs, the folding rod, the sliding part and the lock tongue are symmetrically arranged at two ends of the fixing part in the first direction, the sliding part is connected with the lock tongue through a traction rope, the sliding part which is symmetrically arranged can move along the first direction in opposite directions or in opposite directions, and meanwhile, the lock tongue which is symmetrically arranged is driven to move along the first direction in opposite directions or in opposite directions.

Preferably, the present utility model further comprises a reinforcing member including:

the first tie rod penetrates through the fixing piece and the two connecting pieces along the first direction; and/or

The second transverse pull rods are arranged in parallel and distributed on the left side and the right side of the central transverse rod assembly in the first direction, the second transverse pull rods are all arranged along the first direction, the second transverse pull rods are arranged between two folding rods arranged on the same side, and two ends of the second transverse pull rods are respectively connected with the corresponding folding rods; and/or

The bottom support rods are arranged below the folding rods in a one-to-one correspondence parallel manner, one end of each bottom support rod is rotatably connected with the central cross rod assembly along the first direction, and the other end of each bottom support rod is rotatably connected with the side plate of the bed body.

Preferably, the first direction and the second direction are perpendicular to each other, the second direction is arranged along the vertical direction, and the first direction is arranged as the width direction of the folding crib.

On the other hand, a folding crib is provided, including the bed body curb plate, bed board and chassis structure, the chassis structure is located the bottom of folding crib, the chassis structure with the bed body curb plate rotates to be connected.

The utility model has the beneficial effects that:

on the one hand, the utility model provides a chassis structure, when the folding rod is unfolded and used, the folding rod is unfolded and is in a horizontal state, and the lock tongue is positioned at a locking position, so that the folding rod cannot rotate and fold around a horizontal first direction, and the folding rod plays a supporting role on a crib at the moment; when folding, the user stirs the locking button, drives the spring bolt and slides along first direction in order to break away from the locking position, removes the rotation restriction to folding rod, then pulls up or directly promotes two bed body curb plates and remove in opposite directions with center horizontal pole subassembly, can accomplish the folding of chassis structure, simple structure, easily processing preparation saves manufacturing cost and is convenient for operate simultaneously.

On the other hand, the foldable baby adopting the chassis structure can be folded or unfolded conveniently, is convenient to carry and carry or go out to use, is simple to operate and stable in structure, and can improve user experience.

Drawings

The utility model is described in further detail below with reference to the drawings and examples;

FIG. 1 is an isometric view of a folding crib;

FIG. 2 is an isometric view of a chassis structure;

FIG. 3 is an exploded view of the chassis structure;

FIG. 4 is an exploded view of the center rail assembly;

FIG. 5 is a front view of the folding crib in an unfolded state;

fig. 6 is a front view of the folding crib in a folded state.

In the figure:

1. a bed body side plate; 2. a folding bar; 21. the rod is connected with the hinge; 22. the bed is connected with a hinge; 3. a center rail assembly; 31. a connecting piece; 321. a fixing member; 322. a bolt; 323. a lock button; 324 a slider; 325. tilting the slide rail; 326. a sliding block; 327. a return elastic member; 328. a traction cable; 33. supporting feet; 41. a first tie rod; 42. a second tie rod; 43. a bottom support bar; 5. and a roller.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in FIG. 1, the utility model provides a chassis structure for a folding crib, which enables the folding crib to be conveniently folded or unfolded for use, and has simple operation and stable structure. The chassis structure is arranged at the bottom of the folding baby crib and provides folding or locking functions for the folding baby crib.

As shown in fig. 1 to 6, the chassis structure includes a central cross bar assembly 3 and two pairs of folding bars 2, where the two folding bars 2 arranged in pairs are symmetrically arranged at two sides of the central cross bar assembly 3, and the width direction of the folding crib is taken as a first direction, the two pairs of folding bars 2 are symmetrically arranged at two ends of the central cross bar assembly 3 in the first direction, and the two folding bars 2 are connected with the central cross bar assembly 3 to form an i-shaped structure, so that the chassis structure has enough supporting strength, and the structure not only meets the requirement of simple assembly, but also has enough stability. The folding baby crib comprises a folding rod 2, a central cross rod assembly 3, a bed body side plate 1, a folding rod 2, a ground contact, a folding rod 3, a lifting force and a gravity force, wherein the folding rod 2 is arranged in pairs, one end of the folding rod 2 is rotatably connected with the central cross rod assembly 3 around a horizontal first direction, the folding rod 2 is rotatably connected with the bed body side plate 1, the folding rod 2 can be folded around the first direction, the bed body side plate 1 is contacted with the ground, the central cross rod assembly 3 is driven by the rotation of the folding rod 2 to vertically move upwards along a second direction perpendicular to the first direction, the folding body side plate 1 is contracted and folded, the purpose of the folding baby crib can be achieved, when the central cross rod assembly 3 is vertically pulled up, one end of the folding rod 2 is vertically pulled upwards, the other end of the folding rod 2 is subjected to the gravity force of the bed body side plate 1, and the two forms a rotation moment to drive the folding rod 2 to downwardly rotate, and therefore, the folding of the folding baby crib can be completed only by pulling the central cross rod assembly 3 upwards in actual operation.

The first direction includes a forward direction and a reverse direction along a straight line direction, and the second direction also includes a forward direction and a reverse direction along a straight line direction. In this embodiment, the first direction is a width direction of the folding crib, and the second direction is a vertical direction.

In order to improve the structural stability of the folding crib in the unfolded use state, as shown in fig. 1 to 6, the central cross rod assembly 3 comprises a locking assembly and a connecting piece 31, the locking assembly comprises a fixing piece 321, a lock tongue 322 and a sliding piece 324, the lock tongue 322 is used for locking the folding rod 2 to maintain the unfolded state and enable the folding rod 2 to be unable to rotate and fold, the lock tongue 322 is connected with the sliding piece 324 and is arranged in a sliding mode along a first direction, one end of the connecting piece 31 is connected with the fixing piece 321, the other end of the connecting piece 31 is connected with the two folding rods 2 which are arranged in pairs, a first sliding rail for the lock tongue 322 to slide along the first direction and a second sliding rail for the sliding piece 324 to slide along the first direction are arranged in the connecting piece 31, the locking assembly further comprises a locking button 323 penetrating the fixing piece 321 along the second direction, the locking button 323 can move up and down along the second direction in the fixing piece 321, the locking button 323 is abutted or connected with the sliding piece 324, and the locking button 323 can drive the sliding piece 324 to slide along the first direction when sliding along the second direction.

The sliding piece 324 is provided with an inclined sliding rail 325 disposed at an angle with the horizontal plane, the locking button 323 is provided with a sliding block 326, the sliding block 326 is slidably connected with the inclined sliding rail 325, specifically, the inclined sliding rail 325 is in a kidney-shaped groove structure, the sliding block 326 is clamped into the kidney-shaped groove, when the locking button 323 slides in the second direction, the sliding block 326 slides in the kidney-shaped groove, and the sliding piece 326 is limited in the second sliding rail to perform sliding motion along the first direction, so that the sliding piece 324 performs sliding motion along the first direction under the driving of the sliding piece 326, and meanwhile, the sliding piece 324 is connected with the inclined sliding rail 325, and when the sliding piece 324 slides in the second sliding rail, the locking tongue 322 is driven to slide in the first sliding rail.

In other embodiments, the inclined slide rail 325 may be configured as an inclined surface, and the sliding block 326 abuts against the inclined surface and can perform sliding movement on the inclined surface.

As shown in fig. 1 to 6, since the folding rod 2 is provided with two pairs, the connecting piece 31, the sliding piece 324 and the locking tongue 322 are correspondingly provided with two pairs of folding rods 2, the connecting piece 31, the sliding piece 324 and the locking tongue 322 are symmetrically arranged at two ends of the fixing piece 321 in the first direction, the sliding piece 324 and the locking tongue 322 can be connected through the traction rope 328 or the connecting rod, the inclined sliding rails 325 on the sliding piece 324 are symmetrically arranged, when the locking button 323 slides in the second direction, the symmetrically arranged sliding piece 324 can do opposite or opposite linear movements along the first direction, and meanwhile, the locking tongue 322 is driven to do opposite or opposite linear movements along the first direction. In actual operation, pressing the locking button 323 can make two sliders 324 drive two lock tongues 322 to simultaneously slide inwards in opposite directions, so that the lock tongues 322 can simultaneously unlock two pairs of folding rods 2, and at the moment, the central cross rod assembly 3 is pulled up to complete the folding action of the chassis structure, so that the two pairs of folding rods 2 are prevented from being respectively folded, the operation amount of a user is reduced, and the operation is convenient.

As shown in fig. 1 to 6, one end of the folding bar 2, which is close to the central cross bar assembly 3, is provided with a bar connection hinge 21, the bar connection hinge 21 is fixedly connected with the folding bar 2, the bar connection hinge 21 is rotatably connected with a connecting member 31, and illustratively, one side of the bar connection hinge 21, which is close to the connecting member 31, is provided with a protruding rotation connecting portion, the connecting member 31 is correspondingly provided with a hinge hole, and the rotation connecting portion is clamped into the hinge hole, so that the folding bar 2 can perform rotation movement around the horizontal first direction. Adaptively, one end of the folding rod 2, which is close to the bed body side plate 1, is provided with a bed connecting hinge 22, one end of the bed connecting hinge 22 is fixedly connected with the bed body side plate 1, the other end of the bed connecting hinge is rotationally connected with the folding rod 2, and when the two pairs of folding rods 2 are rotationally folded in opposite directions, the two bed body side plates 1 are driven to oppositely move to a fitting state, so that the purpose of the folding baby bed is achieved.

As shown in fig. 1 to 5, the locking bolt 322 is configured as an inverted T-shaped structure, the locking bolt 322 includes a horizontal limit portion and a vertical partition portion, when the folding rod 2 is in a horizontal unfolded state and the locking bolt 322 is located at a locking position, the vertical partition portion is inserted into a gap between adjacent ends of the two folding rods 2 which are arranged in pairs, two sides of the vertical partition portion are respectively abutted with the rod connection hinges 21 which are symmetrically arranged, the folding rods 2 which are arranged in pairs are prevented from being folded in an upward rotating manner, the horizontal limit portion is located below the two folding rods 2, the folding rods 2 are limited to be folded in a downward rotating manner, and the folding rods 2 are locked in the horizontal unfolded state, so that the purpose of locking the chassis structure is achieved.

In order to improve the bearing capacity of the chassis structure, as shown in fig. 1 to 5, the bottom end of the connecting piece 31 is provided with a supporting leg 33, when the lock tongue 322 locks the folding rod 2 in a horizontal unfolding state, the lower end of the supporting leg 33 is abutted against the ground to provide an upward supporting force for the chassis structure to further prevent the folding rod 2 from rotating upward, meanwhile, since the crib is mainly supported by the two side bed body side plates 1, the central cross rod assembly 3 is positioned at the central position of the crib, when the crib bears a load, the stress is concentrated on the central cross rod assembly 3, downward gravity enables the folding rod 2 to have an upward folding trend, upward supporting force is provided by arranging the supporting leg to offset the downward gravity of the load, the upward folding trend of the folding rod 2 is prevented, and the reliability and stability of the chassis structure are further improved, so that the bearing capacity of the chassis structure is improved.

As shown in fig. 4, the locking assembly further includes a reset elastic member 327, the reset elastic member 327 may be made of elastic material such as a spring or elastic rubber, the reset elastic member 327 is disposed in the connecting member 31 in a penetrating manner, one end of the reset elastic member 327 is abutted to or connected with the connecting member 31, the other end of the reset elastic member 327 is abutted to or connected with the connecting member 31, the reset elastic member 327 has a tendency of pushing the lock tongue 322 to move to the locking position toward the folding rod 2, when the folding crib is required to be used, the folding rod 2 rotates upward from the folding state to the horizontal unfolding state, and the lock tongue 322 is sprung outwards to the locking position under the elastic force of the reset elastic member 327, so as to limit and lock the folding rod 2. In actual operation, the operator only needs to press down the central horizontal pole subassembly 3 to supporting legs 33 butt ground, and locking assembly locks folding rod 2 voluntarily under the effect of reset elastic component 327, and easy operation is convenient, can effectively improve user experience and feel.

As shown in fig. 1 to 2, the chassis structure further includes a reinforcing member, where the reinforcing member includes a first tie rod 41 penetrating through the fixing piece 321 and the two connecting pieces 31 along the first direction, the first tie rod 41 is provided with two tie rods, the first tie rod 41 can improve the connection strength of the center cross rod assembly 3, and most of the load borne by the center cross rod assembly 3 is transferred to the first tie rod 41, so that the deformation of the center cross rod assembly 3 caused by gravity is reduced, and the connection between the connecting piece 31 and the fixing piece 321 is prevented from being broken and failed due to overload.

Illustratively, the reinforcing member further comprises at least two second tie rods 42 arranged in parallel, the second tie rods 42 are distributed on the left side and the right side of the central cross rod assembly 3 in the first direction, the second tie rods 42 are arranged along the first direction, the second tie rods 42 are arranged between the two folding rods 2 arranged on the same side and two ends of the second tie rods are respectively connected with the corresponding folding rods 2, the second tie rods 42 are used for further limiting the direct relative positions of the two parallel folding rods 2, the parallelism of the folding rods 2 is ensured, the connection failure with the central cross rod assembly 3 caused by displacement deformation of the folding rods 2 is reduced, and the reliability and the stability of the whole chassis structure are enhanced.

Illustratively, the reinforcing member further comprises a bottom supporting rod 43, the bottom supporting rods 43 are arranged below the folding rods 2 in a one-to-one correspondence manner, one end of each bottom supporting rod 43 is rotationally connected with the central cross rod assembly 3 around the first direction, the other end of each bottom supporting rod is rotationally connected with the bed body side plate 1, a double-layer supporting structure is formed by arranging the bottom supporting rods 43 and the folding rods 2, the pressure born by the crib is borne by the bottom supporting rods 43 and the folding rods 2 together and is transmitted to the ground through supporting legs 33 and the bed body side plates 1 which are abutted to the ground, and the overall reliability and stability of the chassis structure are enhanced while the bearing capacity of the crib is improved. Further, the bottom supporting rod 43 is two rectangular rods, the rectangular rods have stronger stability and are not easy to deform, and the rectangular rods penetrate through the fixing piece 321 and the two connecting pieces 31, so that the connection strength and the bearing capacity of the central cross rod assembly 3 are further enhanced.

As shown in fig. 1 to 6, the bottom of the side plate 1 of the crib body is provided with rollers 5, the rollers 5 are distributed at four corners at the bottom of the folding crib, the rollers 5 can do rolling motion on the ground, when the crib needs to be carried, the rollers 5 can drive the crib to move, a user can move the crib by only slightly pushing the crib, and the operation difficulty and the manpower consumption in the carrying process are reduced; when the baby crib is needed to be used, the central cross bar assembly 3 is pressed, the folding bar 2 rotates upwards to provide a horizontal thrust for the crib body side plate 1, and the crib body side plate 1 automatically moves outwards to a locking state of the folding bar 2 under the action of the horizontal thrust due to the fact that the rollers 5 are small in friction force; when the folding crib is needed, the locking button 323 is pressed and the central cross bar assembly 3 is gently pulled up, the folding bar 2 rotates downwards to provide a horizontal pulling force for the lateral plate 1 of the crib body, and the lateral plate 1 of the crib body automatically moves towards each other to a folding state of the folding bar 2 under the action of the horizontal pulling force. The roller 5 is arranged, so that the carrying, folding and using of the crib are time-saving and labor-saving, and the purpose of improving the use experience of a user is achieved.

Furthermore, the foregoing description of the preferred embodiments and the principles of the utility model is provided herein. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. A chassis structure, comprising: the folding baby crib comprises a central cross rod assembly (3) and at least one pair of folding rods (2), wherein the two folding rods (2) are symmetrically arranged on two sides of the central cross rod assembly (3) and one end of each folding rod is rotatably arranged around a horizontal first direction, the other end of each folding rod (2) is configured to be rotatably connected with a crib body side plate (1) of the folding baby crib, the central cross rod assembly (3) comprises a locking assembly, the locking assembly comprises a fixing piece (321), a lock tongue (322), a lock button (323) and a sliding piece (324), the lock tongue (322) is connected with the sliding piece (324) and is slidably arranged along the first direction, the lock button (323) is arranged on the fixing piece (321) in a penetrating mode along a second direction, the lock button (323) is in butt or connection with the sliding piece (324), and when the lock button (323) slides along the second direction, the lock tongue (322) is driven to slide along the first direction, so that the lock tongue (322) can be separated from or reach the horizontal position of the folding baby crib (2).

2. The chassis structure according to claim 1, wherein the sliding member (324) is provided with an inclined sliding rail (325) disposed at an angle with respect to the horizontal plane, the locking button (323) is provided with a sliding block (326), and the sliding block (326) is slidably connected with the inclined sliding rail (325).

3. The chassis structure of claim 2, wherein the inclined slide rail (325) is a kidney slot structure; or alternatively

The inclined slide rail (325) is of an inclined surface structure, and the inclined slide rail (325) is abutted against the sliding block (326) from the obliquely lower side.

4. Chassis structure according to claim 1, characterized in that said central crossbar assembly (3) further comprises a connecting piece (31), one end of said connecting piece (31) is connected to said fixing piece (321), the other end is connected to two folding bars (2) arranged in pairs, a first sliding rail for sliding said tongue (322) along said first direction and a second sliding rail for sliding said sliding piece (324) along said first direction are provided in said connecting piece (31).

5. The chassis structure according to claim 4, wherein a supporting leg (33) is provided at a bottom end of the connecting member (31), the locking tongue (322) is provided in an inverted-T structure, the locking tongue (322) includes a horizontal limit portion and a vertical partition portion, when the folding bar (2) is in a horizontal state and the locking tongue (322) is located at a locking position, a lower end of the supporting leg (33) abuts against the ground, the vertical partition portion is inserted into a gap between adjacent ends of two folding bars (2) provided in pairs, and the horizontal limit portion is located below the two folding bars (2) to limit the folding bar (2) to rotate downward.

6. The chassis structure according to claim 4, wherein the locking assembly further comprises a return elastic member (327), the return elastic member (327) is arranged in the connecting member (31) in a penetrating manner, one end of the return elastic member (327) is abutted against the connecting member (31), the other end is abutted against the lock tongue (322), and the return elastic member (327) has a tendency to push the lock tongue (322) to move toward the folding rod (2) to the locking position.

7. The chassis structure according to claim 4, wherein the folding rod (2) is provided with two pairs, the connecting piece (31), the sliding piece (324) and the lock tongue (322) are correspondingly provided with two pairs, the folding rod (2), the connecting piece (31), the sliding piece (324) and the lock tongue (322) are symmetrically arranged at two ends of the fixing piece (321) in the first direction, the sliding piece (324) and the lock tongue (322) are connected through a traction rope (328), the symmetrically arranged sliding piece (324) can do opposite or opposite linear movements along the first direction, and meanwhile, the symmetrically arranged lock tongue (322) is driven to do opposite or opposite linear movements along the first direction.

8. The chassis structure of claim 7, further comprising a stiffening member comprising:

the first tie rod (41) penetrates through the fixing piece (321) and the two connecting pieces (31) along the first direction; and/or

The two parallel second tie rods (42) are arranged, the second tie rods (42) are distributed on the left side and the right side of the central cross rod assembly (3) in the first direction, the second tie rods (42) are all arranged along the first direction, the second tie rods (42) are arranged between the two folding rods (2) arranged on the same side, and two ends of the second tie rods (42) are respectively connected with the corresponding folding rods (2); and/or

The bottom support rods (43) are arranged below the folding rods (2) in a one-to-one correspondence parallel mode, one end of each bottom support rod (43) is rotatably connected with the corresponding central cross rod assembly (3) along the first direction, and the other end of each bottom support rod is rotatably connected with the corresponding side plate (1) of the bed body.

9. The chassis structure according to any one of claims 1 to 8, wherein the first direction and the second direction are perpendicular to each other, and the second direction is arranged in a vertical direction, and the first direction is arranged in a width direction of the folding crib.

10. A folding crib, characterized by comprising a crib body side plate (1) and a chassis structure according to any one of claims 1-9, wherein the chassis structure is arranged at the bottom of the folding crib, and the chassis structure is rotationally connected with the crib body side plate (1).