Support leg and baby crib
The support leg mechanism with a buffer and locking system addresses quick extension issues, ensuring safe and comfortable operation by slowing down the extension speed and stabilizing the position.
Patent Information
- Application Number
- JP2025279782
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-01-06
- Filing Date
- 2025-12-24
- Publication Date
- 2026-02-27
AI Technical Summary
Existing baby crib support legs switch from a retracted state to an extended state too quickly, causing impact noise and potential physical impact, posing safety hazards and discomfort.
A support leg mechanism with a buffer mechanism that slows down the extension speed by creating a variable-volume air chamber using a sliding plug and air vent, and a locking mechanism to stabilize the extended position.
Prevents impact noise and collisions by gradually extending the support leg, enhancing safety and usability.
Smart Images
Figure 2026034772000001_ABST
Abstract
Description
[Technical Field]
[0001] FIELD OF THE DISCLOSURE The present disclosure relates to the field of baby crib technology, and more particularly to support legs and baby crib devices. [Background technology]
[0002] In order to fit the baby cot closely to a large adult bed or to make storage easier, 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 cause physical impact to the user, thus posing a potential safety hazard and making the baby uncomfortable to use. 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 the 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 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 main body portion and the extension portion and configured to enable the extension and retraction of the extension portion, and a buffer mechanism configured to slow down the extension speed when the extension portion switches from the retracted state to the extended state.
[0005] In addition, the extension part of the support leg can be extended and retracted relative to the main body part via an 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 a buffer 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 main body includes a hollow sleeving housing, the extension is partially located 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 located inside the sleeving housing, the sliding plug airtightly fits with the main body 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 is disposed along the extension direction of the extension portion, the sliding plug has a first accommodation groove disposed along the extension direction of the extension portion, 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 the end of the first guide member remote from the fixing member, the airtight flange fitting airtightly with the wall of the first receiving groove to form the 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 sleeving housing, the locking member secured to the sleeving 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 fixing 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 fixing 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 sliding fit, one of the first mating member and the second mating member including 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 so 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 surrounding and forming 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 the end of the elastic sheet closest 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 respectively disposed between the main body portion and each of the extension portions located on the two sides of the main body portion.
[0020] In one embodiment, the sliding plugs of the 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 a vent hole, and the air storage chamber communicates with the external atmosphere only through the vent hole.
[0021] In a second aspect of the present disclosure, a baby bed is provided, the baby bed including a bed body, at least one support post, and at least one support leg as described above, wherein both ends of the support post are connected to the bottom of the bed body and the top of the support leg, respectively. [Brief explanation 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. [Figure 2] FIG. 2 is a partial cross-sectional side view of FIG. 1 with the extension fully retracted into the body. [Figure 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. [Figure 5] FIG. 5 is an enlarged view of part B in FIG. [Figure 6] FIG. 6 is yet another partial cross-sectional side 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] 8 is a perspective view of the sliding plug in FIG. 2. FIG. DETAILED DESCRIPTION OF THE INVENTION
[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 "anchored" 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, terms such as "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. The terms used in the specification of this disclosure are intended only to describe particular embodiments and are not intended to limit the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0026] As shown in Fig. 1, one 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 to slow down the extension speed of the support leg 300, thereby preventing impact noise or collisions to the user.
[0027] Specifically, as shown in FIG. 1, the bed body 100 has an accommodation space 110 for accommodating a baby. One end of a support pillar 200 is connected to the lower part of the bed body 100, and the other end is connected to the upper part of a 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, each located on two sides in the longitudinal direction of the baby bed. Two corresponding support legs 300 are also provided. Of course, in other embodiments, the number and positions of the support pillars 200 and the support legs 300 can be adjusted as needed.
[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 FIGS. 3, 5, and 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 within the sleeving housing 311 substantially at the center 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 arranged along the extension direction of the extension portion 320 (i.e., the horizontal direction in this embodiment). An airtight flange 313a is arranged around the end of the first guide member 313 that is far from the fixed member 312. In this embodiment, two first guide members 313 are provided and 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 be adjusted as necessary.
[0031] Specifically, as shown in FIG. 3 , the second guide member 314 is substantially rod-shaped, and an end of the second guide member 314 is fixed to the fixed member 312. The second guide member 314 is arranged 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 positions of the second guide members 314 can be adjusted as needed, and the relative positions 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 arranged below the second guide member 314.
[0032] 2 and 3, the extension 320 is a substantially hollow tubular structure, and the extension 320 is located partially inside the sleeving housing 311 and is movable relative to the sleeving housing 311. In this embodiment, two extensions 320 are provided. Each of the two extensions 320 is located partially inside the sleeving housing 311 and is movable relative to the sleeving housing 311. Each end of the extension 320 remote from the sleeving housing 311 is provided with rollers 321 to facilitate movement of the crib.
[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 section 320 is retracted, 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 section 320 to be guided to some extent. The airtight flange 313a is airtightly fitted with the wall surface of the first accommodation groove 341a to form an air accommodation chamber 350 with a variable volume. 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, close to the notches of the first and second receiving grooves 341a, 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 can be adjusted by adjusting the blocking range of the vent 314b. 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 portions 320 on both sides of the main body portion 310. In this way, the sliding plugs 340 located on both sides of the main body portion 310 are airtightly fitted with the airtight flanges 313a provided on the corresponding first guide members 313 to form variable-volume air chambers 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 through the vent holes 341b.
[0037] In this way, when the extension portion 320 is switched from the retracted state to the extended state relative to the main body portion 310 (as shown in FIGS. 3, 5, and 7), the sliding plug 340 located on one side (or both sides) of the main body portion 310 moves together with the extension portion 320 in a direction away from the fixed member 312, thereby increasing the volume of the air chamber 350. The air pressure within the air chamber 350 is lower than the external atmospheric pressure, i.e., a negative pressure is generated within the air chamber 350, creating resistance to the extension of the extension portion 320 located on one side (or both sides) of the main body portion 310. Therefore, the extension speed of the extension portion 320 located on one side (or both sides) of the main body portion 310 slows down. During this process, 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 portion 310, gradually reducing the negative pressure within the air chamber 350. Therefore, the extension unit(s) 320 located on one (or both) sides of the main body 310 can gradually reach full extension at a relatively uniform speed under the dynamic equilibrium air pressure environment of the air chamber(s) 350, as shown in Figures 6 and 7. In this way, it is possible to prevent the user from experiencing impact noise or collisions caused by the extension speed of the extension unit 320 being too fast. At the same time, the air intake speed of the air intake port can be adjusted by adjusting the size of the air vent 341b, so that the extension speed of the extension unit 320 can be adjusted according to the user's needs.
[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 FIGS. 2 and 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 another elastic member, such as a rubber column. In this embodiment, the spring is disposed around the second guide member 314, and the spring has one end abutting the fixed member 312 and the other end abutting the bottom of the second receiving groove 342a. In this manner, for example, when the baby cot needs to be connected to a large bed for use as a bedside bed, as shown in FIGS. 2 and 3 , the extension portion 320 abuts against the large bed and retracts toward the main body portion 310, elastically deforming the reset member 360. However, when the baby cot needs to be added to the large bed and is moved away from the large bed, the extension portion 320 automatically extends under the action of the reset member 360, as shown in FIGS. 6 and 7 . In this embodiment, two reset members 360 are provided, each positioned around a second guide member 314 located on either side of the fixed member 312, to enable 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 difficulty of manufacturing can be reduced.
[0041] Specifically, as shown in FIGS. 3, 5, and 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 portion 320. An end of the slider 331 is connected to the 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 components. The slider 331 includes a sliding body 331a and an elastic sheet 331b. The sliding body 331a and the elastic sheet 331b surround the guide groove 331c. One end of the elastic sheet 331b is connected to the sliding body 331a, and the other end of the elastic sheet 331b is spaced from the sliding body 331a to form a gap 331d. A resistance portion is provided at the end of the elastic sheet 331b closest 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 a different configuration. 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 it abuts against the blocking bulge 331e. In this case, 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 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, which has recovered from its deformation. As a result, the extension portion 320 is locked in the extended state, as shown in FIGS. 6 and 7. When the extension section 320 needs to switch from the extension state to the retracted state, a certain external force needs to be applied to the extension section 320 so that the guide post 332 can overcome the resistance of the blocking bulge 331e and unlock the extension section 320, allowing the extension section 320 to retract to an appropriate range so that it can abut against a 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 principles 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 (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 and unlock the extension part 320. The extension part 320 located on one (or both) sides of the main body part 310 retracts / retracts into the main body part 310 when hit by another object, causing the reset member 360 to elastically deform, as shown in Figures 2 and 3 .
[0045] When the baby cot does not need to be connected to a large bed and is moved away from the large bed, or when the extension portion 320 needs to be extended relative to the main body 310, the extension portion 320(s) located on one (or both) sides of the main body 310 releases / releases its contact with the large bed. The extension portion 320 then moves 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, increasing the volume of the air chamber 350. The air pressure in the air chamber(s) 350 is lower than the external atmospheric pressure, i.e., a negative pressure is generated in the air chamber(s) 350, creating resistance to the extension of the extension portion 320(s) located on one (or both) sides of the main body 310. This slows down the extension speed of the extension portion 320 located on one (or both) sides of the main body 310. During this process, external air gradually enters the air chamber 350 through the vent holes 341b of the sliding plugs 340 on both sides of the main body 310, gradually reducing the negative pressure in the air chamber 350. Therefore, the extension parts 320 located on one (or both) 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. In this way, impact noise or collision to the user caused by an excessively fast extension speed of the extension parts 320 can be prevented. 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(s) 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 is able to extend and retract relative to the main body section 310 via an extension mechanism, and when the extension section 320 switches from the stored state to the extended state, the extension speed of the extension section 320 can be slowed down by a buffer mechanism, preventing impact noise and collisions with the user's body, increasing the safety factor and improving the usability.
[0048] The present specification also discloses the following aspects of the invention.
[0049] [1]: A support leg for a baby bed, a body portion including a hollow sleeve housing; an extension portion partially disposed within the sleeve housing, the extension portion being movable relative to the sleeve housing and having an extended state and a retracted state relative to the body 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, wherein the buffer mechanism includes a sliding plug fixed to an end of the extension portion located inside the sleeving housing, the sliding plug being airtightly fitted with the main body portion to form an air storage chamber having a variable volume, the sliding plug having an air vent hole, and the air storage chamber communicating with the outside air only through the air vent hole. [2]: The support leg described in [1], wherein the main body portion includes a fixed member and a first guide member arranged 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, the first guide member is arranged along the extension direction of the extension portion, the sliding plug has a first accommodating groove arranged 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 air vent is arranged at the bottom of the first accommodating groove. [3]: The support leg described in [1], wherein the main body portion further includes a fixing member arranged inside the sleeving housing, the fixing member being fixed to the sleeving housing, and the support leg includes a reset member configured to realize the extension and retraction of the extension portion, and two ends of the reset member abut against the fixing member and the sliding plug, respectively. [4]: The support leg described in [3], wherein 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 is connected to the fixed member, and the reset member is arranged around the second guide member. [5]: The support leg described in [4], 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 fixing member and the bottom of the second accommodating groove, respectively. [6]: The support leg described in [1], further comprising a locking mechanism configured to limit the extension portion to the extended state. [7]: The support leg described in [6], wherein the main body further includes a fixing member arranged inside the sleeving housing, the locking mechanism includes a first mating member arranged on the sliding plug and a second mating member arranged on the fixing 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 member, and the other of the first mating member and the second mating member being adapted to overcome the resistance of the resistance member and switch the extension portion from the extended state to the retracted state. [8]: The support leg described in [7], wherein the first mating member is a slider having a guide groove, the second mating member is a guide post that slides into the guide groove, and the resistance portion is disposed on the slider. [9]: The support leg described in [8], wherein the guide post is adapted to press against the resistance portion to elastically deform the resistance 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.
[10] : 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 apart 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.
[11] : A baby bed comprising a bed body, at least one support pillar, and at least one support leg according to any one of [1] to
[10] , 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.
[0050] 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 listed. However, all combinations of technical features, unless mutually inconsistent, are deemed to be within the scope described herein.
[0051] The above embodiments merely describe some implementations of the present disclosure, and although the descriptions are specific and detailed, they cannot be understood to limit 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 determined according to the claims. [Explanation of symbols]
[0052] 100 bed body 110 Containment 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 Laura 322 Mounting opening 330 Locking mechanism 331 Slider 331a Sliding body 331b Elastic sheet 331c Guide groove 331d Gap 331e Blocking bulge 332 Guidepost 340 Sliding plug 341 First Storage Unit 341a First Receiving Groove 341b Vent 342 Second storage compartment 342a Second Receiving Groove 343 Connection 344 Contact projection 350 Air Containment Chamber 360 Reset member
Claims
1. A support leg for a baby bed, a body portion including a hollow sleeve housing; an extension portion partially disposed within the sleeve housing, the extension portion being movable relative to the sleeve housing and having an extended state and a retracted state relative to the body portion; a buffer mechanism configured to slow down the extension speed when the extension section switches from the stored state to the extended state, the buffer mechanism includes a sliding plug fixed to an end of the extension portion located inside the sleeving housing, the sliding plug airtightly fitting with the main body portion to form an air chamber having a variable volume, and a vent hole provided in the sliding plug, the air chamber communicating with the outside air only through the vent hole. supporting legs.
2. 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 air vent is disposed at a bottom of the first accommodating groove. The support leg of claim 1 .
3. The support leg of claim 1, wherein the main body portion further includes a fixing member disposed inside the sleeving housing, the fixing member being fixed to the sleeving housing, and the support leg includes a reset member configured to realize the extension and retraction of the extension portion, and two ends of the reset member abut against the fixing member and the sliding plug, respectively.
4. The support leg according to claim 3, 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 fixing member, and the reset member being arranged around the second guide member.
5. 5. The support leg according to claim 4, 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 fixing member and a bottom of the second accommodating groove, respectively.
6. The support leg of claim 1 , further comprising a locking mechanism configured to restrict the extension to the extended state.
7. the main body further includes a fixing member disposed inside the sleeving housing; 7. The support leg according to claim 6, wherein the locking mechanism includes a first mating member arranged on the sliding plug and a second mating member arranged on the fixing 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 retracted state.
8. 8. The support leg according to claim 7, wherein 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 resistance portion is disposed on the slider.
9. The support leg of claim 8, 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.
10. 9. The support leg according to claim 8, wherein the slider has a sliding body and an elastic sheet, the sliding body and the elastic sheet surrounding 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.
11. 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 10, wherein two ends of the support pillar are connected to the bottom of the bed body and the top of the support leg, respectively.