Support legs and cribs

Abstract

Providing support legs and cribs. A support leg (300) and a baby bed are disclosed. The support leg (300) includes a main body (310), an extension part (320), an extension mechanism, and a buffer mechanism. The extension part (320) is slidably connected to the main body (310) and has an extension state and a storage state with respect to the main body (310). The extension mechanism is disposed between the main body (310) and the extension part (320) and configured to realize the extension and contraction of the extension part (320). The buffer mechanism is configured to slow down the extension speed when the extension part (320) is switched from the storage state to the extension state. When the extension part is switched from the storage state to the extension state, the buffer mechanism can slow down the extension speed of the extension part.

Description

[Technical field]

[0001] TECHNICAL FIELD This disclosure relates to the field of baby crib technology, and more particularly to support legs and baby crib. [Background technology]

[0002] In order to make the baby cot fit closely to a large adult bed or to facilitate storage, the support legs of the baby cot are generally configured to automatically eject under the thrust of an elastic element. However, the support legs generally switch from a retracted state to an extended state too quickly, which is likely to generate impact noise and impact the user's body, thus creating a certain potential safety hazard and poor usability. Summary of the Invention [Problem to be solved by the invention]

[0003] In view of the above, it is necessary to provide a support leg and a baby bed that have a function of slowing down the extension speed of the support leg and preventing impact noise and collisions with the user. [Means for solving the problem]

[0004] In a first aspect of the present disclosure, a support leg is provided, the support leg including a main body, an extension part slidably coupled to the main body and having an extended state and a retracted state relative to the main body, an extension mechanism disposed between the main body and the extension part and configured to realize the extension and retraction of the extension part, and a buffer mechanism configured to slow down the extension speed when the extension part switches from the retracted state to the extended state.

[0005] In addition, the extension part of the support leg extends and retracts relative to the main body part via the extension mechanism, and when the extension part is switched from the stored state to the extended state, the extension speed of the extension part can be slowed down by the cushioning mechanism, thereby preventing impact noise and preventing collisions with the user's body, increasing the safety factor and improving the usability.

[0006] In one embodiment, the body portion includes a hollow sleeving housing, the extension portion is partially inside the sleeving housing and is movable relative to the sleeving housing, the buffer mechanism includes a sliding plug fixed to an end of the extension portion located inside the sleeving housing, the sliding plug forms an airtight fit with the body portion to form a variable volume air chamber, the sliding plug is provided with an air vent, and the air chamber communicates with the outside atmosphere only through the air vent.

[0007] In one embodiment, the main body includes a fixed member and a first guide member disposed inside the sleeving housing, the fixed member is fixed to the sleeving housing, an end of the first guide member is connected to the fixed member and disposed along the extension direction of the extension part, the sliding plug has a first accommodation groove disposed along the extension direction of the extension part, the first guide member is partially accommodated in the first accommodation groove, the first guide member is airtightly fitted with a wall surface of the first accommodation groove to form an air accommodation chamber, and the air vent is disposed at the bottom of the first accommodation groove.

[0008] In one embodiment, an airtight flange is disposed around an end of the first guide member remote from the fixed member, the airtight flange fitting airtightly with a wall of the first receiving groove to form an air receiving chamber.

[0009] In one embodiment, the vent has an adjustable size.

[0010] In one embodiment, the body further includes a locking member disposed within the sleeve housing, the locking member secured to the sleeve housing, and the extension mechanism includes a reset member, opposite ends of the reset member contacting the locking member and the sliding plug, respectively.

[0011] In one embodiment, the main body portion further includes a second guide member arranged along the extension direction of the extension portion, an end of the second guide member being connected to the fixed member, and the reset member being arranged outside the second guide member.

[0012] In one embodiment, the sliding plug has a second accommodating groove arranged along the extension direction of the extension portion, the second guide member is partially accommodated in the second accommodating groove, and the two ends of the reset member abut against the fixed member and the bottom of the second accommodating groove, respectively.

[0013] In one embodiment, the support leg further includes a locking mechanism configured to limit the extension to the extended state.

[0014] In one embodiment, the locking mechanism includes a first mating member disposed on the sliding plug and a second mating member disposed on the fixed member, the first mating member and the second mating member being in a sliding fit, one of the first mating member and the second mating member comprising a resistor, and the other of the first mating member and the second mating member being adapted to overcome the resistance of the resistor to effect switching of the extension portion from an extended state to a retracted state.

[0015] In one embodiment, the first mating member is a slider having a guide groove, the second mating member is a guide post that slides and fits into the guide groove, and the resistor is disposed on the slider.

[0016] In one embodiment, the guide post is adapted to compress and elastically deform the resistor such that when the extension portion is in the extended state and a force is applied to the extension portion, the extension portion is switched to the retracted state.

[0017] In one embodiment, the slider has a sliding body and an elastic sheet, the sliding body and the elastic sheet are formed around a guide groove, an end of the elastic sheet is connected to the sliding body, another end of the elastic sheet is spaced apart from the sliding body to form a gap, and an end of the elastic sheet close to the gap is provided with a resistance portion.

[0018] In one embodiment, the resistor is a blocking bulge disposed on the elastic sheet and extending toward the guide groove.

[0019] In one embodiment, an extension portion is provided on each of the two sides of the main body portion, and an extension mechanism and a buffer mechanism are disposed between the main body portion and each of the extension portions located on the two sides of the main body portion, respectively.

[0020] In one embodiment, the sliding plugs of the respective buffer mechanisms located on the two sides of the main body are airtightly fitted with the main body to form a variable volume air storage chamber, and each of the sliding plugs located on the two sides of the main body is provided with an air vent, and the air storage chamber communicates with the outside atmosphere only through the air vent.

[0021] In a second aspect of the present disclosure, a baby bed is provided. The baby bed includes a bed body, at least one support post, and at least one support leg as described above. Both ends of the support post are connected to the bottom of the bed body and the top of the support leg, respectively. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a schematic structural diagram showing a baby bed according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a partial cross-sectional side view of FIG. 1 with the extension fully retracted into the body portion. [Diagram 3] FIG. 3 is an enlarged view of part A in FIG. [Figure 4] FIG. 4 is another side partial cross-sectional view of FIG. 1 with the extension portion partially retracted relative to the body portion. [Diagram 5] FIG. 5 is an enlarged view of part B in FIG. [Figure 6] FIG. 6 is yet another partial side cross-sectional view of FIG. 1 with the extension portion fully extended relative to the body portion. [Figure 7] FIG. 7 is an enlarged view of a portion C of FIG. [Figure 8] FIG. 8 is a perspective view of the sliding plug in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure will be described in more detail below with reference to drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to interpret the present disclosure, and do not limit the protection scope of the present disclosure.

[0024] It should be noted that when an element is said to be "fixed" to another element, the element may be directly disposed on the other element, or intermediate elements may be present. When an element is said to be "connected" to another element, it may be directly connected to the other element, or intermediate elements may coexist. As used herein, "vertical," "horizontal," "left," "right," and similar terms are for illustrative purposes only and do not represent specific implementations.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this disclosure belongs. Terms used in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit the disclosure. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0026] As shown in Fig. 1, an embodiment of the present disclosure provides a baby bed. The baby bed includes a bed body 100, at least one support column 200, and at least one support leg 300. The baby bed has a function of slowing down the extension speed of the support leg 300, thereby preventing impact noise or collision to a user.

[0027] Specifically, as shown in FIG. 1, the bed body 100 has an accommodation space 110 for accommodating a baby. The support pillar 200 has one end connected to the lower part of the bed body 100 and the other end connected to the upper part of the support leg 300. In this manner, the support pillar 200 and the support leg 300 form a support structure for the bed body 100. In this embodiment, two support pillars 200 are provided, and are arranged on two sides in the length direction of the baby bed, respectively. In addition, two support legs 300 are also provided correspondingly. Of course, in other embodiments, the number and positions of the support pillars 200 and the support legs 300 can also be adjusted as necessary.

[0028] Specifically, as shown in FIGS. 2 to 7, the support leg 300 includes a main body portion 310, an extension portion 320, a buffer mechanism, an extension mechanism, and a lock mechanism 330.

[0029] Specifically, as shown in FIG. 3, FIG. 5 and FIG. 7, the main body 310 includes a sleeving housing 311, a fixed member 312, a first guide member 313 and a second guide member 314. The sleeving housing 311 has a hollow structure. The fixed member 312, the first guide member 313 and the second guide member 314 are all disposed inside the sleeving housing 311. In this embodiment, the fixed member 312 is fixed in the sleeving housing 311 at a substantially central portion of the sleeving housing 311. In this embodiment, the first guide member 313, the second guide member 314 and the fixed member 312 are integrally formed. Of course, in other embodiments, the first guide member 313, the second guide member 314 and the fixed member 312 may be independent components.

[0030] Specifically, as shown in FIG. 3, the first guide member 313 is substantially rod-shaped, and an end of the first guide member 313 is fixed to the fixed member 312. The first guide member 313 is disposed along the extension direction of the extension portion 320 (i.e., the horizontal direction in this embodiment). An airtight flange 313a is disposed around the end of the first guide member 313 that is remote from the fixed member 312. In this embodiment, two first guide members 313 are provided and are fixed symmetrically to the left and right of the fixed member 312. Of course, in other embodiments, the number and positions of the first guide members 313 can also be adjusted as necessary.

[0031] Specifically, as shown in FIG. 3, the second guide member 314 is substantially rod-shaped, and the end of the second guide member 314 is fixed to the fixed member 312. The second guide member 314 is disposed along the extension direction of the extension portion 320. In this embodiment, two second guide members 314 are provided and fixed symmetrically to the left and right of the fixed member 312, and the two second guide members 314 are respectively located below the two first guide members 313. Of course, in other embodiments, the number and position of the second guide members 314 can also be adjusted as needed, and the relative position between the second guide member 314 and the first guide member 313 can also be adjusted as needed. For example, the first guide member 313 may be disposed below the second guide member 314.

[0032] Specifically, as shown in Figures 2 and 3, the extension 320 is a substantially hollow tubular structure, and the extension 320 is partially located inside the sleeving housing 311 and is movable relative to the sleeving housing 311. In this embodiment, two extensions 320 are provided. The two extensions 320 are each partially located inside the sleeving housing 311 and are each movable relative to the sleeving housing 311. At each end of the extensions 320 remote from the sleeving housing 311, rollers 321 are provided to facilitate movement of the baby cot.

[0033] Specifically, as shown in Figs. 2, 3 and 8, the buffer mechanism includes a sliding plug 340. The sliding plug 340 is fixed to an end of the extension portion 320 located inside the sleeving housing 311. The sliding plug 340 includes a first accommodating portion 341, a second accommodating portion 342, and a connecting portion 343 connected between the first accommodating portion 341 and the second accommodating portion 342. The first accommodating portion 341 is provided with a first accommodating groove 341a arranged along the extension direction of the extension portion 320, and the second accommodating portion 342 is provided with a second accommodating groove 342a arranged along the extension direction of the extension portion 320. When the extension part 320 is stored, as shown in Figs. 7, 5 and 3, the first guide member 313 is gradually inserted into the first accommodation groove 341a, and the second guide member 314 is gradually inserted into the second accommodation groove 342a. This arrangement allows the movement of the extension part 320 to be guided to some extent. The airtight flange 313a is airtightly fitted into the wall surface of the first accommodation groove 341a to form an air accommodation chamber 350 whose volume is variable. An air vent 341b communicating with the air accommodation chamber 350 is provided at the bottom of the first accommodation groove 341a.

[0034] 3 and 8, an abutting boss 344 is disposed on the periphery of the end of the sliding plug 340 adjacent to the notches of the first receiving groove 341a and the second receiving groove 342a. An attachment opening 322 is provided at the end of the extension 320 located inside the sleeving housing 311, and the sliding plug 340 is partially inserted into the extension 320 through the attachment opening 322. The abutting boss 344 is located outside the extension 320, and the side of the abutting boss 344 remote from the fixing member 312 abuts against the wall of the attachment opening 322.

[0035] Furthermore, the size of the vent 314b is adjustable. For example, a movable blocking plate (not shown) covers the vent 314b, and the size of the vent 314b is adjusted by adjusting the blocking range of the blocking plate. Of course, the size of the vent 314b can also be adjusted by other methods.

[0036] 2 and 3, in this embodiment, the sliding plugs 340 are fixed to the extension parts 320 on both sides of the main body part 310. In this way, the sliding plugs 340 located on both sides of the main body part 310 are airtightly fitted with the airtight flanges 313a provided on the corresponding first guide members 313 to form a variable-volume air chamber 350, and the sliding plugs 340 located on both sides are provided with vent holes 341b, and the air chamber 350 communicates with the outside air only via the vent holes 341b.

[0037] In this way, when the extension part 320 is switched from the stored state to the extension state with respect to the main body part 310 (as shown in FIG. 3, FIG. 5 and FIG. 7), the sliding plug 340 located on one side (or two sides) of the main body part 310 moves together with the extension part 320 in a direction away from the fixed member 312, so that the volume of the air chamber 350 increases. The air pressure in the air chamber 350 is lower than the external atmospheric pressure, that is, a negative pressure is generated in the air chamber 350, and resistance is formed against the extension of the extension part 320 located on one side (or two sides) of the main body part 310. Therefore, the extension speed of the extension part 320 located on one side (or two sides) of the main body part 310 slows down. In this process, the external air gradually enters the air chamber 350 through the air vents 341b provided in the sliding plugs 340 on both sides of the main body part 310, and the negative pressure in the air chamber 350 gradually decreases. Therefore, the extension part 320(s) located on one side (or two sides) of the main body 310 can gradually achieve full extension at a relatively uniform speed under the dynamic equilibrium air pressure environment of the air chamber 350(s), as shown in Figures 6 and 7. In this way, it is possible to prevent the user from experiencing impact noise or collision caused by the extension speed of the extension part 320 becoming too fast. At the same time, the air intake speed of the air intake port can be adjusted by adjusting the size of the ventilation port 341b, so that the extension speed of the extension part 320 can be adjusted according to the user's requirements.

[0038] Of course, the configuration of the buffer mechanism is not limited to this, and other configurations may be used.

[0039] Specifically, as shown in FIG. 2 and FIG. 3, the extension mechanism includes a reset member 360. Optionally, the reset member 360 is a spring. Of course, in other embodiments, the reset member 360 may be other elastic members, such as a rubber column. In this embodiment, the spring is disposed around the second guide member 314, and the spring has an end abutting the fixed member 312 and another end abutting the bottom of the second receiving groove 342a. In this way, for example, when the baby cot needs to be connected to a large bed to be used as a bedside bed, the extension part 320 abuts against the large bed and retreats toward the main body part 310, as shown in FIG. 2 and FIG. 3, to elastically deform the reset member 360. However, when the baby cot needs to be added to the large bed and moved away from the large bed, the extension part 320 will automatically extend under the action of the reset member 360, as shown in FIG. 6 and FIG. 7. In this embodiment, two reset members 360 are provided, each arranged around a second guide member 314 located on either side of the fixed member 312, to realize automatic removal of the extension portion 320 on either side of the main body portion 310.

[0040] Of course, in other embodiments, the first guide member 313 and the second guide member 314 may have the same configuration, and the first accommodating portion 341 and the second accommodating portion 342 may have the same configuration. That is, only one guide member may be provided on the side of the fixed member 312, and only one accommodating portion may be provided on the sliding plug 340. In this way, the configuration of the support leg 300 can be simplified, and the manufacturing difficulty can be reduced.

[0041] Specifically, as shown in FIG. 3, FIG. 5, and FIG. 7, the locking mechanism 330 includes a first mating member and a second mating member. In this embodiment, the first mating member is a slider 331. The slider 331 is a substantially long strip-like structure and is arranged along the extension direction of the extension part 320. An end of the slider 331 is connected to a sliding plug 340. In this embodiment, the slider 331 and the sliding plug 340 are integrally formed. Of course, in other embodiments, the slider 331 and the sliding plug 340 may be two independent parts. The slider 331 includes a sliding body 331a and an elastic sheet 331b. The sliding body 331a and the elastic sheet 331b are formed around the guide groove 331c, the end of the elastic sheet 331b is connected to the sliding body 331a, the other end of the elastic sheet 331b is separated from the sliding body 331a to form a gap 331d, and a resistance portion is provided at the end of the elastic sheet 331b close to the gap 331d. In this embodiment, the resistance portion is a blocking bulge 331e disposed on the elastic sheet 331b and extending toward the guide groove 331c. Of course, in other embodiments, the resistance portion may have other configurations. The second mating member is a guide post 332 that slidably fits into the guide groove 331c, and the guide post 332 is disposed on the fixed member 312.

[0042] When the extension portion 320 extends outward, the slider 331 moves relative to the fixed member 312, and the guide post 332 slides relative to the guide groove 331c until the guide post 332 abuts against the blocking bulge 331e. In this case, the guide post 332 receives the elastic force of the reset member 360 and presses the blocking bulge 331e to deform the blocking bulge 331e, and then the guide post 332 enters the left end of the guide groove 331c and is blocked at the left end of the guide groove 331c by the blocking bulge 331e that has recovered from its deformation, so that the extension portion 320 is locked in the extended state, as shown in Figures 6 and 7. When the extension part 320 needs to switch from the extension state to the retracted state, a certain external force needs to be applied to the extension part 320 so that the guide post 332 can overcome the resistance of the blocking bulge 331e and unlock the extension part 320, so that the extension part 320 can be retracted to a suitable range and abut against the large bed, as shown in Figures 2 to 5. Of course, in other embodiments, the locking mechanism 330 may have other forms.

[0043] Based on the above, the specific operating principle of the support leg 300 and the baby bed will be described below.

[0044] When the baby cot needs to be connected to a large bed or when the extension part 320 needs to be retracted relative to the main body part 310, a certain external force needs to be applied to the extension part 320 located on one side (or both sides) of the main body part 310 so that the guide post 332 can overcome the resistance of the blocking bulge part 331e to unlock the extension part 320. The extension part 320 located on one side (or both sides) of the main body part 310 retracts / retracts into the main body part 310 under the impact of other objects, as shown in Figures 2 and 3, to make the reset member 360 elastically deform.

[0045] When the baby cot does not need to be connected to the large bed and is moved in a direction away from the large bed, or when the extension part 320 needs to be extended relative to the main body part 310, the extension part 320(s) located on one side (or two sides) of the main body part 310 releases / releases the abutment against the large bed. Then, the extension part 320 moves in a direction away from the fixed member 312 under the elastic force of the reset member 360, and the corresponding sliding plug 340 is also driven to move in the same direction, so that the volume of the air chamber 350 increases. The air pressure in the air chamber 350(s) is lower than the external atmospheric pressure, that is, a negative pressure is generated in the air chamber 350(s), and a resistance is formed against the extension of the extension part 320(s) located on one side (or two sides) of the main body part 310. Therefore, the extension speed of the extension part 320 located on one side (or two sides) of the main body part 310 slows down. In this process, the outside air gradually enters the air chamber 350 through the vent holes 341b of the sliding plugs 340 on both sides of the body 310, and the negative pressure in the air chamber 350 can be gradually reduced. Therefore, the extension part 320 located on one side (or two sides) of the body 310 can gradually achieve full extension at a relatively uniform speed under the dynamic equilibrium air pressure environment of the air chamber 350. In this way, it is possible to prevent the user from experiencing impact noise or collision caused by the extension speed of the extension part 320 becoming too fast. The guide post 332 presses against the blocking bulge 331e under the elastic force of the reset member 360, deforming the blocking bulge 331e, and the guide post 332 enters the left end of the guide groove 331c. The blocking bulge 331e, which has recovered from its deformation, blocks the guide post 332 at the left end of the guide groove 331c, thereby locking the extension portion 320 (singular or plural) in an extended state, as shown in Figures 6 and 7.

[0046] The support leg 300 and the baby bed have at least the following technical effects.

[0047] The extension section 320 of the support leg 300 extends and retracts relative to the main body section 310 via an extension mechanism, and when the extension section 320 switches from a stored state to an extended state, the extension speed of the extension section 320 can be slowed down by the buffer mechanism, thereby preventing impact noise and collisions with the user's body, increasing the safety factor, and improving the usability.

[0048] The technical features in the above embodiments may be combined randomly. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, all combinations of the technical features are considered to be within the scope described herein unless they are mutually inconsistent.

[0049] The above embodiments merely describe some implementations of the present disclosure, and the description is specific and detailed, but cannot be understood as limiting the scope of the present invention. It should be noted that a person skilled in the art can make further modifications and improvements without departing from the concept of the present disclosure, and all of these are included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present invention should be subject to the claims. [Explanation of symbols]

[0050] 100 Bed body 110 Storage Space 200 columns 300 Support legs 310 Main body 311 Sleeving Housing 312 Fixing member 313 First guide member 313a Airtight Flange 314 Second guide member 320 Extension part 321 Lola 322 Mounting opening 330 Locking mechanism 331 Slider 331a Sliding body 331b Elastic sheet 331c Guide groove 331d Gap 331e Blocking bulge 332 Guide Post 340 Sliding plug 341 First Storage Unit 341a First receiving groove 341b Vent 342 Second storage unit 342a Second Receiving Groove 343 Connection 344 Contact projection 350 Air Containment Chamber 360 Reset member

Claims

1. A main body portion, an extension portion slidably coupled to the main body portion and having an extended state and a retracted state relative to the main body portion; an extension mechanism disposed between the body portion and the extension portion and configured to provide extension and retraction of the extension portion; a buffer mechanism configured to slow down the extension speed when the extension section switches from the stored state to the extended state; A support leg having

2. The body portion includes a hollow sleeving housing, the extension portion is located partially within the sleeving housing, and the sleeve the housing is movable relative to the the buffer mechanism includes a sliding plug fixed to an end of the extension portion located inside the sleeving housing, the sliding plug airtightly fits with the main body portion to form an air chamber having a variable volume, and a vent hole is provided in the sliding plug, and the air chamber communicates with the outside air only through the vent hole. The support leg according to claim 1 .

3. the main body portion includes a fixed member and a first guide member disposed inside the sleeving housing, the fixed member is fixed to the sleeving housing, an end of the first guide member is connected to the fixed member, and the first guide member is disposed along the extension direction of the extension portion; the sliding plug has a first accommodating groove disposed along the extension direction of the extension portion, the first guide member is partially accommodated in the first accommodating groove, the first guide member is airtightly fitted with a wall surface of the first accommodating groove to form the air accommodating chamber, and the vent hole is disposed at a bottom of the first accommodating groove. The support leg according to claim 2.

4. The support leg according to claim 3, wherein an airtight flange is disposed around the end of the first guide member remote from the fixed member, and the airtight flange airtightly engages with a wall surface of the first accommodating groove to form the air accommodating chamber.

5. A support leg according to any one of claims 2 to 4, wherein the vent is adjustable in size.

6. A support leg as described in any one of claims 2 to 5, wherein the main body portion further includes a fixing member arranged inside the sleeve housing, the fixing member being fixed to the sleeve housing, and the extension mechanism includes a reset member, two ends of the reset member abutting against the fixing member and the sliding plug, respectively.

7. The support leg of claim 6, wherein the main body portion further comprises a second guide member arranged along the extension direction of the extension portion, an end of the second guide member being connected to the fixed member, and the reset member being arranged around the second guide member.

8. 8. The support leg according to claim 7, wherein the sliding plug has a second accommodating groove arranged along the extension direction of the extension portion, the second guide member is partially accommodated in the second accommodating groove, and both ends of the reset member abut against the fixed member and a bottom of the second accommodating groove, respectively.

9. The support leg of claim 1 , further comprising a locking mechanism configured to restrict the extension to the extended state.

10. 9. The support leg according to claim 2, wherein the locking mechanism includes a first mating member arranged on the sliding plug and a second mating member arranged on the fixed member, the first mating member and the second mating member being in a sliding engagement state, one of the first mating member and the second mating member being provided with a resistance portion, and the other of the first mating member and the second mating member being adapted to overcome the resistance of the resistance portion and switch the extension portion from the extended state to the stored state.

11. The support leg according to claim 10 , wherein the first mating member is a slider having a guide groove, the second mating member is a guide post that slidably fits into the guide groove, and the resistance portion is disposed on the slider.

12. The support leg according to claim 11, wherein the guide post is adapted to press against the resistor portion to elastically deform the resistor portion when the extension portion is in an extended state and a force is applied to the extension portion so that the extension portion is switched to the stored state.

13. 13. The support leg according to claim 11 or 12, wherein the slider has a sliding body and an elastic sheet, the sliding body and the elastic sheet surround the guide groove, one end of the elastic sheet is connected to the sliding body, the other end of the elastic sheet is spaced from the sliding body to form a gap, and the resistance portion is provided at an end of the elastic sheet close to the gap.

14. The support leg according to claim 13 , wherein the resistance portion is a blocking bulge disposed on the elastic sheet and extending toward the guide groove.

15. A support leg as described in any one of claims 1 to 3, wherein the extension portion is provided on each of the two sides of the main body portion, and the extension mechanism and the buffer mechanism are respectively arranged between the main body portion and the extension portions located on the two sides of the main body portion.

16. A support leg according to claim 15 depending on claim 2 or any one of claims 3 to 14, wherein the sliding plugs of the cushioning mechanisms located on both sides of the main body are airtightly fitted with the main body to form the air storage chamber having a variable volume, the sliding plugs located on both sides of the main body are provided with the air vent, and the air storage chamber communicates with the outside atmosphere only through the air vent.

17. A baby bed comprising a bed body, at least one support pillar, and at least one support leg according to any one of claims 1 to 16, wherein the two ends of the support pillar are connected to the bottom of the bed body and the top of the support leg, respectively.

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