Folding support and folding bed

Abstract

The utility model discloses a folding support and a folding bed, the folding support comprises a supporting cross rod and folding assemblies arranged at the two ends of the supporting cross rod, each folding assembly comprises a connecting seat, an upper supporting rod, an extension rod and a lower supporting rod, the connecting seats are fixedly connected to the ends of the supporting cross rod, the upper supporting rods are rotatably connected to the connecting seats, and the extension rods are rotatably connected to the lower supporting rods. The two ends of the extension rod are rotatably connected to the upper supporting rod and the lower supporting rod respectively, and the lower supporting rod can drive the upper supporting rod and the extension rod to be rotatably folded or unfolded in the same plane; when the folding assembly is folded, the upper supporting rod, the extension rod and the lower supporting rod are attached to one side of the supporting transverse rod. When the folding assembly is unfolded, the upper supporting rod, the extension rod and the lower supporting rod are unfolded away from the supporting cross rod, the lower supporting rod is locked and matched with the connecting seat to lock the lower supporting rod and limit the lower supporting rod to drive the upper supporting rod and the extension rod to rotate and fold, and the distance between the upper supporting rod and the lower supporting rod can be increased by arranging the extension rod, so that the height of the folding bed is increased; and the ground clearance of the bed cloth assembly is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of folding beds, in particular to a folding support and a folding bed. BACKGROUND

[0002] A folding bed is a simple bed designed by using the principle of joints, which can be folded and unfolded in various ways for the convenience and space saving. Due to the advantages of portability and space saving, the folding bed is widely used in various places such as family, office, hospital and outdoor camping. In the family, the folding bed can be used as a temporary bed to meet the needs of guests staying overnight; in the office, the folding bed can provide a place for employees to take a nap; in the hospital, the folding bed can be used for nursing in the ward; in outdoor camping, the folding bed can provide a comfortable resting environment for people.

[0003] However, the existing folding bed has a complicated unfolding and folding procedure, which needs to lock or unlock multiple rods in sequence. The whole operation procedure is time-consuming and laborious. Moreover, the gap between the bed cloth and the ground after unfolding is small, which can easily lead to the invasion of moisture and cold into the human body, and also can easily lead to the inhalation of dust from the ground during sleep, affecting the health of the body. In addition, the small gap between the bed cloth and the ground can also affect the stability of the bed, especially when turning over or moving, which can feel shaking or uncomfortable. SUMMARY

[0004] One object of the present application is to provide a folding support to solve the problem of small gap between the bed cloth and the ground after unfolding the folding support.

[0005] Another object of the present application is to provide a folding bed.

[0006] To achieve the above objects, the technical scheme adopted by the present application is as follows: a folding support, comprising a support crossbar and a folding assembly arranged at both ends of the support crossbar, the folding assembly comprising a connecting seat, an upper support rod, an extension rod and a lower support rod, the connecting seat being fixedly connected to the end of the support crossbar, the upper support rod being rotatably connected to the connecting seat, the extension rod having two ends rotatably connected to the upper support rod and the lower support rod respectively, and the lower support rod being capable of driving the upper support rod and the extension rod to rotate and fold or unfold in the same plane.

[0007] When the folding assembly is folded, the upper support rod, the extension rod and the lower support rod are close to each other and fit on one side of the support crossbar.

[0008] When the folding assembly is unfolded, the upper support rod, the extension rod and the lower support rod are separated from each other and abut against the connecting seat, the lower support rod is locked with the connecting seat to limit the rotation of the lower support rod, and then the folding assembly can be kept in the unfolded state by limiting the freedom of the lower support rod.

[0009] As a preferred embodiment, one end of the upper support rod is rotatably connected to the connecting seat to form a hinged end, the other end of the upper support rod is detachably connected to the bed cloth support rod to form a mounting end, one end of the extension rod is rotatably connected to the middle part of the upper support rod, and the other end of the extension rod is rotatably connected to the top end of the lower support rod.

[0010] As another preferred embodiment, a hinged groove extending in the vertical direction is formed in the connecting seat, the opening direction of the hinged groove is the same as the extending direction of the support cross rod, the bottom end of the hinged groove is closed, and the top end of the hinged groove is open to the outside, and the hinged end of the upper support rod is rotatably connected to the opening end of the hinged groove.

[0011] Further preferably, a reinforcing rib is arranged in the hinged groove, and the upper support rod can abut against the reinforcing rib when being rotated to the maximum unfolded position, so that the reinforcing rib can support the upper support rod while limiting the further rotation of the upper support rod.

[0012] Further, the extension rod is in the shape of a circular arc, and the top end of the side of the connecting seat away from the support cross rod is provided with a circular arc surface matching the shape of the extension rod, and the extension rod can be fitted to the circular arc surface when being rotated to the maximum unfolded position.

[0013] Further, the lower support rod is movably provided with a locking assembly, the locking assembly includes a locking push button and a locking pin, the locking pin is arranged at the back of the locking push button, the bottom end of the side of the connecting seat away from the support cross rod is provided with a locking rod, a locking cavity is formed between the locking rod and the connecting seat, the locking push button can drive the locking pin to move downwardly and embed into the locking cavity to make the locking pin cooperate with the locking rod to lock the lower support rod, or the locking push button can drive the locking pin to move upwardly and disengage from the locking cavity to make the locking pin separate from the locking rod to unlock the lower support rod.

[0014] Further, the locking assembly further includes a compression spring arranged between the locking pin and the lower support rod, the compression spring is adapted to apply a downward moving force to the locking pin, so that the locking pin has a tendency to keep the locking cooperation with the locking rod.

[0015] Further, the top end of the connecting seat away from the supporting horizontal rod is provided with a stop block, and the extension rod is provided with a stop part which can abut against the stop block when the extension rod is turned to the maximum unfolded position to limit the extension rod from driving the lower supporting rod to move upward in the vertical direction.

[0016] Further, the lower supporting rod comprises a connecting part connected with the extension rod and a supporting part in contact with the supporting plane, the connecting part is integrally connected with the supporting part, and the supporting part is arranged outwardly inclined to the connecting part.

[0017] Another aspect of the present application provides a folding bed comprising a bed cloth body, a bed cloth supporting rod and a plurality of the folding supports.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The extension rod is connected between the upper supporting rod connected with the bed cloth assembly and the lower supporting rod in contact with the supporting plane, which can increase the distance between the upper supporting rod and the lower supporting rod, increase the distance of the bed cloth assembly from the ground, reduce the possibility of moisture and cold air invading the human body, and reduce the possibility of inhaling dust from the bottom surface during sleep. In addition, the lower supporting rod can drive the upper supporting rod and the extension rod to rotate in the same plane to fold or unfold, that is, only the lower supporting rod needs to be operated to complete the folding and unfolding of the folding bed, which is simple to operate. The lower supporting rod can simultaneously serve as an operation handle for unfolding and folding the folding bed and a supporting structure for supporting the folding bed, which ensures the stability and structural strength of the supporting structure and simplifies the structure of the folding bed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a perspective view of the folding bed of the present application.

[0021] Figure 2 FIG. 2 is a perspective view of the folding support of the present application when unfolded.

[0022] Figure 3 FIG. 3 is a perspective view of the folding support of the present application when folded.

[0023] Figure 4 FIG. 4 is a perspective view of the supporting horizontal rod and the connecting seat of the folding support of the present application.

[0024] Figure 5 FIG. 5 is a cross-sectional view of the folding support of the present application when unfolded.

[0025] Figure 6 FIG. 6 is a cross-sectional view of the folding support of the present application when folded.

[0026] Figure 7 FIG. 7 is a perspective view of the connecting seat of the folding support of the present application. Figure 5 FIG. 8 is an enlarged view of part A in FIG. 7.

[0027] In the figure: 100, bed cloth assembly; 110, bed cloth body; 120, bed cloth support rod; 200, support crossbar; 300, connecting seat; 310, hinged groove; 320, reinforcing rib; 330, locking rod; 331, guide slope; 340, locking cavity; 350, blocking block; 400, upper support rod; 410, bracket; 500, extension rod; 510, stop portion; 600, lower support rod; 610, connecting portion; 620, support portion; 630, handle; 700, locking assembly; 710, locking push button; 720, locking pin; 721, guide curved surface; 730, compression spring. DETAILED DESCRIPTION

[0028] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0029] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0031] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0032] As Figures 1-7 shown, the present application provides a folding bed, which includes a bed cloth assembly 100 and a plurality of folding supports, each folding support being arranged at intervals along the length direction of the bed cloth assembly 100 to support the bed cloth assembly 100.

[0033] The bed cloth assembly 100 comprises a bed cloth body 110 and two bed cloth supporting rods 120 arranged at two ends of the bed cloth body 110 respectively.

[0034] The folding support comprises a supporting horizontal rod 200 and folding assemblies arranged at two ends of the supporting horizontal rod 200, each of the folding assemblies comprising a connecting seat 300, an upper supporting rod 400, an extension rod 500 and a lower supporting rod 600, the connecting seat 300 being fixedly connected to an end of the supporting horizontal rod 200, the connecting seat 300 being provided with a hinge groove 310 extending in a vertical direction, the opening direction of the hinge groove 310 being the same as the extending direction of the supporting horizontal rod 200, the bottom end of the hinge groove 310 being a closed end, the top end of the hinge groove 310 being an open end, the hinge groove 310 being further provided with a reinforcing rib 320 for abutting against the upper supporting rod 400, one end of the upper supporting rod 400 being rotatably connected to the connecting seat 300 to form a hinge end, the hinge end being rotatably connected to the open end of the hinge groove 310, the other end of the upper supporting rod 400 being detachably connected to the bed cloth supporting rod 120 to form a mounting end, one end of the extension rod 500 being rotatably connected to the middle part of the upper supporting rod 400, the other end of the extension rod 500 being rotatably connected to the top end of the lower supporting rod 600, so that the lower supporting rod 600 can drive the upper supporting rod 400 and the extension rod 500 to rotate and fold or unfold in the same plane, so as to realize the folding and unfolding of the folding assembly and the folding bed.

[0035] When the folding bed is folded, the folding assemblies on both sides of the supporting horizontal rod 200 are folded, the upper supporting rod 400, the extension rod 500 and the lower supporting rod 600 in the folding assemblies rotate inward and abut against each other above the supporting horizontal rod 200, and the two bed cloth supporting rods 120 detachably mounted on the upper supporting rod 400 also abut against each other above the supporting horizontal rod 200, so as to fold the bed cloth body 110.

[0036] When the folding bed is unfolded, the folding assemblies on both sides of the supporting horizontal rod 200 are unfolded, the upper supporting rod 400, the extension rod 500 and the lower supporting rod 600 in the folding assemblies rotate outward and away from each other, the upper supporting rod 400, the extension rod 500 and the lower supporting rod 600 are all rotated to the maximum unfolded position, the two upper supporting rods 400 form a trapezoidal structure with the supporting horizontal rod 200, the two bed cloth supporting rods 120 detachably mounted on the upper supporting rods 400 are away from each other, so as to unfold the bed cloth body 110, the upper supporting rod 400 abuts against the reinforcing rib 320 in the hinge groove 310, the reinforcing rib 320 limits the further rotation of the upper supporting rod 400 and supports the upper supporting rod 400, the extension rod 500 and the lower supporting rod 600 are all rotated to the side of the connecting seat 300 away from the supporting horizontal rod 200 and abut against the connecting seat 300, the lower supporting rod 600 is locked with the connecting seat 300, so as to limit the folding of the folding assembly and the folding bed by limiting the freedom of the lower supporting rod 600, and the folding assembly and the folding bed are kept in the unfolded state.

[0037] It is worth mentioning that the setting of the extension rod 500 increases the distance between the upper support rod 400 and the lower support rod 600, thereby increasing the height of the bed cloth body 110 arranged on the upper support rod 400, so that the ground clearance of the bed cloth body 110 is increased, thereby avoiding the influence of the moisture, coldness of the ground, and the dust, insects and the like of the ground on the user's rest.

[0038] The mounting end of the upper support rod 400 is provided with a bracket groove 410 made of elastic plastic and provided with an opening, and the bed cloth support rod 120 can be detachably clamped in the bracket groove 410 through the opening. The detachable connection of the bed cloth support rod 120 and the mounting end makes the folding of the folding bed more flexible. When the storage space is large, the bed cloth support rod 120 can be kept connected to the mounting end when the folding bed is folded, that is, the folding bed after folding is in a long strip shape. When the storage space is small, the bed cloth support rod 120 can be separated from the mounting end when the folding bed is folded, that is, the folding support and the bed cloth assembly 100 are separately stored, thereby further reducing the volume of the folding bed after folding and storage.

[0039] Further, the extension rod 500 is in a circular arc shape, and the top end of the connecting seat 300 away from the support cross rod 200 is provided with a circular arc surface matching the shape of the extension rod 500. When the extension rod 500 is rotated to the maximum unfolded position, the extension rod 500 is fitted to the circular arc surface, and the extension rod 500 abuts against the connecting seat 300, and the connecting seat 300 can support the extension rod 500.

[0040] Further, the lower support rod 600 includes a connecting portion 610 connected with the extension rod 500 and a support portion 620 in contact with the support plane, the connecting portion 610 and the support portion 620 are integrally connected, and the support portion 620 extends outwardly inclined relative to the connecting portion 610. Specifically, when the lower support rod 600 is rotated to the maximum unfolded position, the support portion 620 in the lower support rod 600 extends downwardly inclined away from the support cross rod 200, and the two lower support rods 600 and the support cross rod 200 form a trapezoidal structure, so that the folding support has a larger support area after unfolding, thereby improving the support stability of the folding support and avoiding the folding bed from shaking or toppling when the user turns over or moves.

[0041] In some preferred embodiments, the connecting portion 610 is further provided with a handle 630, which can be held for operating the lower support rod 600. The hinged end of the upper support rod 400 is rotatably connected to the connecting seat 300, one end of the extension rod 500 is rotatably connected to the middle portion of the upper support rod 400, and the other end of the extension rod 500 is rotatably connected to the top end of the lower support rod 600. Thus, the user only needs to rotate the unfolded or folded lower support rod 600, which can drive the upper support rod 400 and the extension rod 500 to rotate, that is, the lower support rod 600 can simultaneously serve as an "operation handle" for unfolding and folding the folding support and a "support leg" for supporting the folding support. This simplifies the unfolding and folding operations of the folding support and also simplifies the structure of the folding support, improves the use convenience of the folding bed, reduces the weight of the folding bed, improves the portability of the folding bed, and makes the folding bed more convenient to carry and transport.

[0042] The lower support rod 600 is movably provided with a locking assembly 700, which includes a locking push button 710 movably arranged on the lower support rod 600 and a locking pin 720 arranged on the back of the locking push button 710. The locking push button 710 is integrally connected with the locking pin 720. The bottom end of the connecting seat 300 away from the support cross rod 200 is provided with a locking rod 330, which is arranged in a spaced manner with the end face of the connecting seat 300. Thus, a locking cavity 340 is formed between the locking rod 330 and the end face of the connecting seat 300. The locking push button 710 can be operated to move up and down to drive the locking pin 720 to slide out of or slide into the locking cavity 340. When the locking push button 710 is pushed upward, the locking pin 720 moves upward to slide out of the locking cavity 340, so that the locking pin 720 is separated from the locking rod 330 to unlock the lower support rod 600, which can be freely rotated. When the locking push button 710 is pushed downward, the locking pin 720 moves downward to slide into the locking cavity 340, so that the locking pin 720 cooperates with the locking rod 330 to lock the lower support rod 600, which cannot be rotated.

[0043] The locking assembly 700 further includes a compression spring 730 arranged between the locking pin 720 and the lower support rod 600. The compression spring 730 is adapted to exert a force on the locking pin 720 to drive it to move downward. The force makes the locking pin 720 have a tendency to keep locking cooperation with the locking rod 330. Thus, when the external force acting on the locking push button 710 does not exceed the preset value, the locking push button 710 cannot be pushed upward to drive the locking pin 720 to slide out of the locking cavity 340, so that the locking pin 720 can still keep locking cooperation with the locking rod 330. This avoids the situation that the lower support rod 600 is unlocked due to accidental touch of the locking push button 710, and improves the locking effect of the locking assembly 700 on the lower support rod 600.

[0044] In some preferred embodiments, the locking pin 720 is provided with a guide curved surface 721, the locking rod 330 is provided with a guide inclined surface 331, during the process of rotating and unfolding the lower support rod 600, the guide curved surface 721 and the guide inclined surface 331 are in contact with each other under the action of the force applied on the lower support rod 600, and the locking pin 720 slides upward relative to the locking rod 330 and compresses the compression spring 730, when the lower support rod 600 rotates to the maximum unfolded position, the locking pin 720 slides to the upper side of the locking cavity 340, and the locking pin 720 slides downward and is embedded in the locking cavity 340 under the action of the compression spring 730, the locking pin 720 and the locking rod 330 are locked and matched to limit the rotation of the lower support rod 600, that is, during the locking process of the lower support rod 600, the user does not need to operate the locking push button 710, and only needs to rotate the lower support rod 600 to the maximum unfolded position to realize the automatic locking of the lower support rod 600.

[0045] Further, the top end of the connecting seat 300 away from the support cross rod 200 is provided with a blocking block 350, and the extension rod 500 is provided with a stop portion 510, the stop portion 510 is adapted to cooperate with the blocking block 350 when the extension rod 500 rotates to the maximum unfolded position, so as to limit the upward movement of the extension rod 500 in the vertical direction. Because the cooperation of the locking pin 720 and the locking rod 330 only limits the rotation of the lower support rod 600, and does not limit the movement of the lower support rod 600 in the vertical direction, the upward movement of the lower support rod 600 in the vertical direction will cause the locking pin 720 and the locking rod 330 to separate, resulting in the unlocking of the lower support rod 600. The setting of the blocking block 350 and the stop portion 510 can limit the upward movement of the extension rod 500 in the vertical direction, because one end of the extension rod 500 is rotationally connected to the top end of the lower support rod 600, so the upward movement of the lower support rod 600 in the vertical direction can also be limited, avoiding the unlocking of the lower support rod 600 caused by the movement of the lower support rod 600 in the vertical direction.

[0046] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, the above embodiments and descriptions in the specification are only the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A foldable stand, characterized in that, The folding assembly comprises a connecting seat, an upper support rod, an extension rod and a lower support rod, the connecting seat is fixedly connected to the end of the support crossbar, the upper support rod is rotatably connected to the connecting seat, the two ends of the extension rod are rotatably connected to the upper support rod and the lower support rod respectively, and the lower support rod can drive the upper support rod and the extension rod to rotate and fold or unfold in the same plane, so as to realize the folding and unfolding of the folding assembly. When the folding assembly is folded, the upper support rod, the extension rod and the lower support rod are close to each other and fit on one side of the support crossbar. When the folding assembly is unfolded, the upper support rod, the extension rod and the lower support rod are separated from each other and abut against the connecting seat, the lower support rod is locked with the connecting seat to limit the rotation of the lower support rod, and then the folding of the folding assembly can be limited by limiting the degree of freedom of the lower support rod, so that the folding assembly can be kept in the unfolded state.

2. The foldable stand of claim 1, wherein, One end of the upper support rod is rotatably connected to the connecting seat to form a hinged end, the other end of the upper support rod is detachably connected with the bed cloth support rod to form a mounting end, one end of the extension rod is rotatably connected to the middle part of the upper support rod, and the other end of the extension rod is rotatably connected to the top end of the lower support rod.

3. The foldable stand of claim 2, wherein, A hinged groove extending in the vertical direction is formed in the connecting seat, the opening direction of the hinged groove is the same as the extension direction of the support crossbar, the bottom end of the hinged groove is closed, and the top end of the hinged groove is open to the outside.

4. The foldable stand of claim 3, wherein, A reinforcing rib is arranged in the hinged groove, and the upper support rod abuts against the reinforcing rib when it is rotated to the maximum unfolded position, so that the reinforcing rib can support the upper support rod while limiting the further rotation of the upper support rod.

5. The foldable stand of claim 2, wherein, The extension rod is in the shape of a circular arc, and a circular arc surface matching the shape of the extension rod is arranged at the top end of the side of the connecting seat away from the support crossbar, and the extension rod can fit the circular arc surface when it is rotated to the maximum unfolded position.

6. The foldable stand of claim 2, wherein, A locking assembly is movably arranged on the lower support rod, the locking assembly comprises a locking push button and a locking pin, the locking pin is arranged at the back of the locking push button, a locking rod is arranged at the bottom end of the side of the connecting seat away from the support crossbar, a locking cavity is formed between the locking rod and the connecting seat, the locking push button can drive the locking pin to move downwardly and embed in the locking cavity, so that the locking pin cooperates with the locking rod to lock the lower support rod, or the locking push button can drive the locking pin to move upwardly and separate from the locking cavity, so that the locking pin separates from the locking rod to unlock the lower support rod.

7. The foldable stand of claim 6, wherein, The locking assembly further comprises a compression spring arranged between the locking pin and the lower support rod, and the compression spring is adapted to apply a downward moving force to the locking pin, so that the locking pin has a tendency to keep locking with the locking rod.

8. The foldable stand of claim 6, wherein, The top end of the connecting seat away from the supporting crossbar is provided with a stop block, and the extension rod is provided with a stop part which can abut against the stop block when the extension rod is turned to the maximum unfolded position to limit the extension rod from driving the lower supporting rod to move upward in the vertical direction.

9. The foldable stand of claim 2, wherein, The lower supporting rod comprises a connecting part connected with the extension rod and a supporting part in contact with the supporting plane, the connecting part is integrally connected with the supporting part, and the supporting part is arranged outwardly inclined to the connecting part.

10. A foldable bed characterized by The folding support comprises a bed cloth body, a bed cloth supporting rod and a plurality of folding supports as claimed in any one of claims 1-9.

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