Support Assembly

Abstract

To provide a support assembly which is convenient to unfold and fold and has high structural stability. [Solution] The support assembly of the present application includes a support cross rod and a connecting seat provided on both ends of the support cross rod, an upper support rod is rotatably connected to the connecting seat, and a lower support leg is rotatably connected to the upper support rod, the upper support rod and the lower support leg are rotated in the same plane so that the support assembly can be switched between a folded state and an unfolded state, a lock push button is movably provided on the lower support leg, the lock push button is provided with a first locking portion, and the connection seat is provided with a second locking portion, the lock push button can be operated to slide from the unlocked position to the locked position, and when the lock push button is located in the locked position, the first locking portion and the second locking portion abut and engage so as to restrict the separation rotation of the lower support leg and the connection seat, thereby maintaining the support assembly in the unfolded state.

Description

[Technical field]

[0001] The present application relates to the technical field of folding beds, and in particular to support assemblies. [Background technology]

[0002] A folding bed is a simple bed designed using the principle of joints, and can be folded and stored by various folding methods for convenience and space saving. Due to the advantages of folding beds being convenient to use and easy to carry, folding beds can generally play a huge role in outings or outdoor activities, and people can wear folding beds when going out to camp and collecting outdoor scenery, thus using the smallest space to enjoy a comfortable home experience. In addition, due to the advantages of folding beds being unfoldable and storable, when the folding bed needs to be transported or stored, the folding bed can be folded to effectively reduce the volume of the folding bed and reduce the space occupied by the folding bed, making it convenient for users to carry and store. However, the structure of the folding frame of the conventional folding bed is relatively complicated, and when the folding frame is unfolded or folded, multiple rods need to be rotated in sequence, making the unfolding and folding operations complicated and cumbersome, and the stability of the folding frame after unfolding is low, so that the folding bed is prone to shaking during use. Summary of the Invention [Problem to be solved by the invention]

[0003] One object of the present application is to provide a support assembly that is convenient to unfold and fold and has high structural stability. [Means for solving the problem]

[0004] In order to achieve the above object, the technical means of the present application are as follows: A support assembly includes a horizontal support rod and a connection seat provided on both ends of the horizontal support rod, an upper support rod is rotatably connected to the connection seat, a lower support leg is rotatably connected to the upper support rod, the upper support rod and the lower support leg are rotated in the same plane so that the support assembly can be switched between a folded state and an unfolded state, a lock push button is movably provided on the lower support leg, a first lock portion is provided on the lock push button, and a second lock portion is provided on the connection seat, the lock push button can be operated to slide from an unlocked position to a locked position, and when the lock push button is located in the locked position, the first lock portion and the second lock portion abut and engage with each other so as to restrict the lower support leg and the connection seat from rotating apart, thereby holding the support assembly in the unfolded state.

[0005] Preferably, the first locking portion includes an extension member and a stopper member, the extension member is arranged perpendicular to a back portion of the lock push button, the stopper member is arranged at an end of the extension member and has a first locking plane, the second locking portion has an accommodating cavity formed therein, the second locking portion has a second locking plane, and the lock push button drives the stopper member to slide into the accommodating cavity, thereby abutting and engaging the first locking plane and the second locking plane with each other, thereby restricting the separation rotation of the lower support leg and the connecting seat.

[0006] In addition, preferably, a return member is provided between the lock push button and the lower support leg, and the return member continuously applies a force to the lock push button to move it to the locked position so that the lock push button can move to the locked position after an external force acting on the lock push button is removed.

[0007] More preferably, the upper support rod includes a hinge connection end and an attachment end, the hinge connection end being rotatably connected to the connection seat and the attachment end being removably connected to the bed cross assembly, the top of the lower support leg being rotatably connected to the middle of the upper support rod, and the lower support leg being operable to drive the upper support rod to rotate to fold or rotate to unfold, and when the upper support rod and the lower support leg are both rotated to a maximum extended position, the support cross rod, the upper support rod and the lower support leg form a triangular structure.

[0008] Further, the mounting end is provided with a support groove, and a bed cross assembly is engaged within the support groove so as to be removably connected to the mounting end.

[0009] Further, the connection seat includes a first connection portion connected to the support horizontal rod and a second connection portion connected to the upper support rod, the second connection portion including two base side walls and a position limiting wall connected between the two base side walls, the two base side walls forming a hinge connection groove together with the position limiting wall, a hinge connection rod is provided in the hinge connection groove, the upper support rod is connected to the hinge connection rod so as to be rotatably provided in the hinge connection groove via the hinge connection end, and the position limiting wall abuts the upper support rod and the lower support leg so as to limit the maximum deployment position of the upper support rod and the lower support leg.

[0010] Furthermore, the lower support leg includes a bottom support rod and two side support rods, the top ends of the two side support rods are both hingedly connected to the middle of the upper support rod, and the bottom ends of the two side support rods are fixedly connected to the left and right ends of the bottom support rod, respectively, and the two side support rods are inclined so that the entire lower support leg forms a triangular shape.

[0011] Further, the side support rod includes a connection segment adjacent to the upper support rod and a support segment spaced from the upper support rod, the support segment being inclined relative to the connection segment such that an obtuse included angle is formed between the support segment and the connection segment.

[0012] Furthermore, the included angle has a degree range of 155° to 175°.

[0013] Furthermore, as the position limiting wall extends along the vertical direction and the upper support rod abuts against the upper end of the position limiting wall, the upper support rods at both ends of the support horizontal rod are arranged to incline outward, and the support horizontal rod and the upper support rods located at both ends of the support horizontal rod form a trapezoidal structure that widens at the top and narrows at the bottom, and as the connection segment abuts against the side end of the position limiting wall, the connection segment extends along the vertical direction, and the support horizontal rod and the support segments at both ends of the support horizontal rod form a trapezoidal structure that narrows at the top and widens at the bottom. Effect of the Invention

[0014] Compared with the prior art, the beneficial effects of the present application are as follows:

[0015] In the support assembly of the present application, a lock push button is provided on the lower support leg, a first locking portion is provided on the lock push button, and a second locking portion is provided on the connecting seat. When the upper support rod and the lower support leg are both rotated to the maximum deployment position and the support assembly is in the deployed state, the first locking portion and the second locking portion are locked and engaged to restrict the separation and rotation of the lower support leg and the connecting seat, thereby maintaining the support assembly in the deployed state. The lower support leg can be used simultaneously as an deployed "operation handle" and a "support structure" for support, simplifying the support assembly structure and simplifying the operation of the user to deploy and fold the support assembly. At the same time, in the support assembly after deployment, the support cross rod, the upper support rod and the lower support leg form a triangular structure, thereby improving the support stability and structural strength of the support assembly, and avoiding situations such as shaking and breakage occurring during the process of the support assembly supporting the bed cross assembly, which may cause safety accidents. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a schematic perspective view of the support assembly of the present application in an unfolded state. [Diagram 2] FIG. 2 is a schematic perspective view of the support assembly of the present application in a folded state. [Diagram 3] FIG. 2 is a front view of the support assembly of the present application in a deployed state. [Figure 4] FIG. 2 is a schematic perspective view of a connection seat in the support assembly of the present application. [Diagram 5] FIG. 2 is a schematic perspective view of an upper support rod in the support assembly of the present application. [Figure 6] 1 is a schematic diagram of an engagement relationship between a lower support leg and a lock push button in the support assembly of the present application. FIG. [Figure 7] 2 is an exploded schematic view of a lower support leg, a lock push button, and a return member in the support assembly of the present application. FIG. [Figure 8] FIG. 2 is a schematic perspective view of a lock push button in the support assembly of the present application. [Figure 9] 2 is a cross-sectional perspective schematic view of a lower support leg, a lock push button, and a return member in the support assembly of the present application. FIG. [Figure 10] FIG. 2 is a cross-sectional schematic view of a support assembly of the present application. [Figure 11] 11 is a partially enlarged schematic view of part A in FIG. 10. FIG. [Figure 12] FIG. 2 is a perspective schematic view of a folding bed formed by combining the support assembly and the bed cross assembly of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The present application will be further described below with reference to specific embodiments. It should be noted that, provided there is no contradiction, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0018] In the description of the present application, it should be explained that the orientations and positional relationships indicated by the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., with respect to directional terms, are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate and simplify the description of the present application, and do not indicate or suggest that the devices or parts shown must have a specific orientation and be configured and operated in a specific orientation, and therefore should not be understood as limiting the specific protection scope of the present application.

[0019] In addition, the terms "first," "second," etc. in the specification and claims of this application are intended to distinguish between similar objects and are not necessarily intended to describe a particular order or priority.

[0020] The terms "comprises" and "having" and any variations thereof in the present specification and claims are intended to cover a non-exclusive inclusion, e.g., a process, method, system, product or apparatus that includes a series of steps or units is not limited to the steps or units expressly stated, but may include other steps or units that are not expressly stated or that are inherent to those processes, methods, products or apparatus.

[0021] As shown in Figs. 1 to 12, the support assembly according to the present application is used in combination with a bed cross assembly 700 to mount a folding bed. The support assembly includes a support cross rod 100 and a connection seat 200 provided at both ends of the support cross rod 100, an upper support rod 300 is rotatably connected to the connection seat 200, and a lower support leg 400 is rotatably connected to the upper support rod 300, and the upper support rod 300 and the lower support leg 400 rotate toward or away from the support cross rod 100 in the same plane so that the support assembly can be switched between a folded state and an unfolded state, and a lock push button 500 is movably provided on the lower support leg 400. The lock push button 500 is operated to slide between a locked position and an unlocked position, a first locking portion 510 is provided on the back of the lock push button 500, and a second locking portion 210 is provided on the connecting base 200, and the first locking portion 510 is locked and engaged with the second locking portion 210 to lock the rotation of the lower support leg 400, thereby preventing the lower support leg 400 from separating from the connecting base 200 and rotating to approach the support cross rod 100, thereby preventing the support assembly from being switched from the unfolded state to the folded state. The bed cross assembly 700 includes two bed cross support rods 710 and a bed cross 720 connected between the two bed cross support rods 710, the bed cross support rods 710 being removably attached to the upper support rods 300, and further, when the support assembly is in an unfolded state, the upper support rods 300 at both ends of the support horizontal rod 100 move away from each other to pull the two bed cross support rods 710 apart, thereby unfolding the bed cross 720.

[0022] Specifically, as shown in Fig. 1, when the support assembly is in the unfolded state, the upper support rod 300 and the lower support leg 400 are both rotated and separated from the support cross rod 100 to the maximum unfolded position, the two upper support rods 300 at both ends of the support cross rod 100 are inclined outward to unfold the bed cross assembly 700, the two lower support legs 400 at both ends of the support cross rod 100 are in contact with the placement plane, and the first locking part 510 on the locking push button 500 is locked and engaged with the second locking part 210 on the connection seat 200, thereby restricting the rotation of the lower support legs 400, thereby stably holding the support assembly in the unfolded state and preventing the bed cross 720 from folding. As shown in Fig. 2, when the support assembly is in the folded state, the upper support rod 300 and the lower support leg 400 are both closely adjacent to the upper part of the support cross rod 100 and in close contact with each other.

[0023] Further, the connecting seat 200 includes a first connecting part 220 and a second connecting part 230, the second connecting part 230 is disposed above the first connecting part 220, an end of the support cross rod 100 is fixedly connected to the first connecting part 220, one end of the upper support rod 300 is rotatably connected to the second connecting part 230, and the other end of the upper support rod 300 is detachably connected to the bed cross support rod 710, and the top of the lower support leg 400 is rotatably connected to the upper support rod 300. The user can operate the lower support leg 400 to rotate the upper support rod 300 together to unfold or rotate and fold it. When the upper support rod 300 and the lower support leg 400 are rotated to the maximum unfolded position, the robot 100 is rotated to the maximum unfolded position. The first locking portion 510 on the lock push button 500 engages with and locks the second locking portion 210 on the connecting base 200 to lock the support assembly in the unfolded state, and the bottom of the lower support leg 400 contacts the placement surface to support the upper support rod 300, the support cross rod 100 and the bed cross assembly 700, that is, the lower support leg 400 can simultaneously function as an "operation handle" for unfolding and folding the support assembly and a "support structure" for supporting the support assembly, thereby simplifying the support assembly structure and simplifying the operation for the user to unfold or fold the support assembly, making it more labor-saving and quicker for the user to unfold and fold the support assembly.

[0024] In some preferred embodiments, as shown in FIGS. 3 to 7, the first connecting portion 220 extends along the horizontal direction, the second connecting portion 230 extends along the vertical direction, and the second connecting portion 230 is integrally formed above the first connecting portion 220 and vertically disposed, so that the connecting seat 200 forms an L-shaped structure as a whole, and the end of the supporting horizontal rod 100 is fixed and connected to the first connecting portion 220 by a fastener such as a bolt, and the second connecting portion 230 is formed by two vehicular oppositely disposed. The support assembly includes two base side walls 231, between which a position limiting wall 232 is provided, and the position limiting wall 232 also extends vertically, the two base side walls 231 and the position limiting wall 232 form a U-shaped structure, and the two base side walls 231 and the position limiting wall 232 form a hinge connection groove 233, in which a hinge connection rod 234 is provided, and both ends of the hinge connection rod 234 are rotatably connected to the two base side walls 231, respectively. The position limiting wall 232 abuts against the upper support rod 300 and the lower support leg 400 to limit the maximum extension position of the upper support rod 300 and the lower support leg 400, and provides a certain supporting effect for the upper support rod 300 and the lower support leg 400, thereby improving the structural stability of the support assembly. Specifically, as shown in FIG. 3, when the upper support rod 300 and the lower support leg 400 rotate to the maximum deployed position, the support assembly is in the deployed state, and the upper support rod 300 abuts against the upper end of the position limiting wall 232, so that the upper support rods 300 at both ends of the support cross rod 100 are inclined outward, and the support cross rod 100 and the upper support rods 300 at both ends of the support cross rod 100 form a trapezoidal structure that is wider at the top and narrower at the bottom, thereby improving the support stability of the bed cross assembly 700 by the upper support rod 300; and when the lower support leg 400 abuts against the side end of the position limiting wall 232, the lower support leg 400 at both ends of the support cross rod 100 extends along the vertical direction, and the lower support leg 400 is installed perpendicular to the placement plane, thereby ensuring the support stability of the upper support rod 300 and the bed cross assembly 700 by the lower support leg 400.

[0025] The upper support rod 300 includes a hinge connection end 310 and a mounting end 320, the hinge connection end 310 is connected to the hinge connection rod 234 and rotatably disposed in the hinge connection groove 233, so that the upper support rod 300 can be rotated to approach or move away from the support horizontal rod 100, the mounting end 320 is provided with a support groove 321, the support groove 321 is made of elastic plastic and has an opening, the bed cross support rod 710 passes through the opening and is removably engaged in the support groove 321, and is engaged with the mounting end 320 when the support assembly is unfolded and is separated from the mounting end 320 when the support assembly is folded, so that the volume of the folding bed after folding and storage can be further reduced. Of course, other removable connection methods, such as clamps, may be used between the bed cross support rod 710 and the mounting end 320.

[0026] The lower support leg 400 includes a bottom support rod 420 and two side support rods 410, the top ends of which are both hingedly connected to the middle of the upper support rod 300, and the bottom ends of the two side support rods 410 are integrally molded and connected to the left and right ends of the bottom support rod 420, respectively. Both side support rods 410 are inclined inward so that the entire lower support leg 400 forms a triangular structure, thereby improving the supporting stability and structural strength of the lower support leg 400.

[0027] Furthermore, the side support rod 410 includes a connection segment 411, the upper half of which is close to one end of the upper support rod 300, and a support segment 412, the lower half of which is away from one end of the upper support rod 300. The support segment 412 is arranged at an angle relative to the connection segment 411, so that an included angle is formed between the support segment 412 and the connection segment 411, the included angle having a degree between 155° and 175°, and preferably, the included angle between the support segment 412 and the connection end is 170°. The support segment 412 is arranged at an angle relative to the connection segment 411, so that the support stability of the lower support leg 400 can be improved. When the support assembly is in the unfolded state, the connecting segments 411 of the side support rods 410 are in close contact with the position limiting walls 232 and extend vertically, the support segments 412 of the side support rods 410 are inclined relative to the mounting plane, and the support segments 412 in the lower support legs 400 at both ends of the support horizontal rod 100 and the support horizontal rod 100 form a trapezoidal structure that narrows at the top and widens at the bottom, thereby further improving the support stability and structural strength of the support assembly and preventing the support assembly from shaking during use.

[0028] 6 to 11, a mounting plate 430 is provided between the two side support rods 410 of the lower support leg 400, a lock push button 500 is slidably provided on the mounting plate 430, a retreat hole 431 is provided in the mounting plate 430 for the first lock portion 510 to pass through, slide grooves 432 are provided on both the left and right sides of the retreat hole 431, a connecting member 520 that engages with the slide groove 432 is provided on the back of the lock push button 500, and the connecting member 520 connects a buckle 522 of a connecting rod 521 to the mounting plate 430. The connecting rod 521 is provided perpendicular to the back of the lock push button 500 and extends toward the slide groove 432 while being positioned within the slide groove 432, and the buckle 522 is provided at the end of the connecting rod 521 and abuts against the back of the mounting plate 430. As a result, the lock push button 500 can slide up and down between the locked position and the unlocked position only along the slide groove 432, and cannot move in a direction away from the mounting plate 430 and be separated from the mounting plate 430.

[0029] In addition, a return member 600 is further provided between the lock push button 500 and the mounting plate 430, and the return member 600 continuously applies a force to the lock push button 500 to move it to the lock position, so that the lock push button 500 can return to the lock position after the external force acting on the lock push button 500 is removed, that is, the lock push button 500 is always in the lock position, and the lock push button 500 can be moved to the unlock position only after the user applies a force to the lock push button 500, thereby preventing the lock push button 500 itself from sliding to the unlock position during use to unlock the lower support leg 400. The return member 600 can be selected from any material having elasticity and energy storage, such as elastic rubber, leaf spring, etc. Preferably, the return member 600 is implemented as a compression spring, the upper end of which is connected to the mounting plate 430, and the lower end of which is fitted into the positioning pillar of the lock push button 500. When the user operates the lock push button 500 to slide it upward to the unlocked position, the compression spring is compressed and deformed; when the user releases the lock push button 500, the force applied to the lock push button 500 is removed, and the compression spring is restored and deformed to push the lock push button 500 up to the locked position.

[0030] The first locking portion 510 specifically includes an extension member 511 and a stopper member 512, the extension member 511 is arranged vertically on the back of the lock push button 500, the stopper member 512 is arranged at the end of the extension member 511, the extension member 511 and the stopper member 512 pass through the retraction hole 431, and the stopper member 512 has a first locking plane 513 adjacent to the extension member 511 side and a guide arc surface 514 spaced away from the extension member 511 side, and the second locking portion 210 is arranged on the connecting seat 200 and spaced apart from the connecting seat 200 to form the accommodating cavity 211, and has a second locking plane 212 adjacent to the accommodating cavity 211 side and a guide inclined surface 213 spaced away from the accommodating cavity 211 side. When the first locking portion 510 and the second locking portion 210 are locked and engaged, the stopper member 512 is positioned within the accommodating cavity 211, and the first locking plane 513 of the stopper member 512 abuts and engages with the second locking plane 212 of the second locking portion 210, preventing the lower support leg 400 from rotating in a direction away from the connecting base 200, thereby locking the support assembly in the deployed state.

[0031] In addition, during the process of the first locking portion 510 and the second locking portion 210 gradually engaging with each other, the guide arc surface 514 of the stopper member 512 abuts against the guide inclined surface 213 of the second locking portion 210. Due to the engagement between the guide arc surface 514 and the guide inclined surface 213, the stopper member 512 can slide upward relative to the second locking portion 210 and compress the returning member 600. After the stopper member 512 slides against the upper end surface of the second locking portion 210, it no longer slides upward. At this time, the returning member 600 undergoes restoration deformation and pushes the stopper member 512 downward into the accommodating cavity 211, thereby engaging and locking the first locking flat surface 513 of the stopper member 512 with the second locking flat surface 212 of the second locking portion 210. In other words, the user does not need to operate the lock push button 500 in the process of rotating, deploying, and locking the lower support leg 400; by simply rotating the lower support leg 400 to the maximum deployment position, the first lock portion 510 on the lock push button 500 automatically engages with the second lock portion 210 on the connecting seat 200 to lock the rotation of the lower support leg 400.

[0032] The above describes the basic principle, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and the description in the specification are only for illustrating the principles of the present application, and the present application also has various changes and improvements without departing from the spirit and scope of the present application, and all of these changes and improvements are within the scope of the present application as claimed. The scope of protection of the present application is defined by the appended claims and their equivalents. [Explanation of symbols]

[0033] 100 Support horizontal rod 200 Connection seat 210 Second Lock Section 211 Storage Cavity 212 Second Lock Plane 213 Guide Slope 220 First Connection 230 Second Connection 231 Base side wall 232 Position Restriction Wall 233 Hinge connection groove 234 Hinge connecting rod 300 Upper support rod 310 Hinge connection end 320 Mounting end 321 Support groove 400 Lower support leg 410 Side support rod 411 Connection Segments 412 Support Segment 420 Bottom Support Rod 430 Mounting plate 431 Evacuation hole 432 Slide groove 500 Lock push button 510 First Lock 511 Extension member 512 Stopper member 513 First Lock Plane 514 Guide arc surface 520 Connection parts 521 Connecting Rod 522 Buckle 600 Returning member 700 Bed Cross Assembly 710 Bed Cross Support Rod 720 Bedcloth

Claims

1. A support assembly comprising: A support cross rod and a connection seat provided at both ends of the support cross rod, An upper support rod is rotatably connected to the connection seat, A lower support leg is rotatably connected to the upper support rod, the upper support rod and the lower support leg are rotated in the same plane so that the support assembly can be switched between a folded state and an unfolded state; A lock push button is movably provided on the lower support leg, The lock push button is provided with a first lock portion, The connecting seat is provided with a second locking portion, the lock push button is operable to slide from an unlocked position to a locked position; When the lock push button is in a locked position, the first lock portion and the second lock portion abut against each other and engage with each other so as to restrict the lower support leg and the connection seat from rotating apart from each other, thereby holding the support assembly in an expanded state. A support assembly comprising:

2. The first locking portion includes an extending member and a stopper member, The extension member is provided perpendicular to the back of the lock push button, The stopper member is provided at an end of the extension member and has a first locking plane. The second locking portion has a receiving cavity formed therein. The second locking portion has a second locking plane, The lock push button drives the stopper member to slide into the receiving cavity, and causes the first lock plane and the second lock plane to abut against each other and engage with each other, thereby restricting the separation rotation of the lower support leg and the connecting base. The support assembly of claim 1 .

3. A return member is provided between the lock push button and the lower support leg, The return member continuously applies a force to the lock push button to move it to the lock position, so that the lock push button can move to the lock position after the external force acting on the lock push button is removed. The support assembly of claim 2 .

4. the upper support rod includes a hinge connection end and a mounting end; The hinge connection end is rotatably connected to the connection seat, the mounting end is removably connected to a bed cross assembly; The top of the lower support leg is rotatably connected to the middle of the upper support rod; the lower support leg is operable to drive the upper support rod to rotate to fold or rotate to unfold; When the upper support rod and the lower support leg are both rotated to the maximum deployment position, the support cross rod, the upper support rod and the lower support leg form a triangular structure. A support assembly according to any one of claims 1 to 3.

5. The mounting end is provided with a support groove, A bed cross assembly is engaged within the support groove so as to be removably connected to the mounting end.

5. The support assembly of claim 4.

6. The connection seat includes a first connection portion connected to the support horizontal rod and a second connection portion connected to the upper support rod; The second connection portion includes two base side walls and a position limiting wall connected between the two base side walls, The two base side walls form a hinge connection groove together with the position limiting wall; A hinge connecting rod is provided in the hinge connecting groove, The upper support rod is connected to the hinge connection rod via the hinge connection end so as to be rotatably disposed in the hinge connection groove; The position limiting wall abuts the upper support rod and the lower support leg so as to limit a maximum deployment position of the upper support rod and the lower support leg.

5. The support assembly of claim 4.

7. The lower support leg includes a bottom support rod and two side support rods; The top ends of the two side support rods are both hingedly connected to the middle of the upper support rod; The bottom ends of the two side support rods are fixedly connected to the left and right ends of the bottom support rod, respectively; The two side support rods are inclined so that the entire lower support leg forms a triangular shape.

7. The support assembly of claim 6.

8. the side support rods include a connecting segment adjacent to the upper support rod and a support segment spaced from the upper support rod; The support segment is provided at an angle to the connection segment, An obtuse included angle is formed between the support segment and the connection segment.

8. The support assembly of claim 7.

9. The degree of the included angle is 155° to 175°; 9. The support assembly of claim 8.

10. The position limiting wall extends along a vertical direction, and the upper support rod abuts against an upper end of the position limiting wall, so that the upper support rods at both ends of the support horizontal rod are inclined outward; The horizontal support rod and the upper support rods located at both ends of the horizontal support rod form a trapezoidal structure that is wider at the top and narrower at the bottom, When the connection segment abuts against the side end of the position limiting wall, the connection segment extends along a vertical direction, The support cross rod and the support segments at both ends of the support cross rod form a trapezoidal structure narrowing at the top and widening at the bottom.

9. The support assembly of claim 8.

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