Pressure reduction adjusting connecting rod structure and handrail

Abstract

The utility model relates to a decompression adjusting connecting rod structure and a handrail. The decompression adjusting connecting rod structure comprises a first branch rod; a movable gap is formed between the second branch rod and the first branch rod, and the second branch rod and the first branch rod are connected in a hinged mode; the elastic component is arranged at the position between the first branch rod and the second branch rod, the first branch rod and the second branch rod are sleeved with the two ends of the elastic component respectively, and the elastic component is configured to be bent and deformed when the included angle between the first branch rod and the second branch rod changes.

Description

Technical Field

[0001] The present application relates to the field of bed design, and in particular to a pressure reducing and adjusting connecting rod structure and an armrest. Background Art

[0002] Existing child beds are mainly used to confine babies inside, thereby providing a safe playing space and sleeping space.

[0003] In the current child bed, the upper rail is prone to bend and break when subjected to downward pressure or squeezing force when the child bed is unfolded. In addition, when the child bed is folded and stored, the upper rail needs to be operated to fold down and compress the bed body. During the folding process, the upper rail is prone to break when subjected to downward pressure or squeezing force, or wear occurs between the upper rail and the hinged joint. Utility Model Content

[0004] Based on this, it is necessary to provide a pressure-reducing adjustment connecting rod structure and an armrest to address at least some of the problems raised above.

[0005] A pressure reducing and adjusting connecting rod structure, comprising:

[0006] First point;

[0007] a second branch rod, wherein the second branch rod is hingedly connected to the first branch rod with a movable gap between them;

[0008] The elastic component is disposed between the first sub-rod and the second sub-rod, and both ends of the elastic component are respectively sleeved on the first sub-rod and the second sub-rod, and is configured to bend and deform when the angle between the first sub-rod and the second sub-rod changes.

[0009] In some embodiments, the first branch rod and the second branch rod are spaced apart and connected via a connection and limiting component; the connection and limiting component includes:

[0010] The connecting member is located between the first sub-rod and the second sub-rod, and two ends of the connecting member are rotatably connected to the first sub-rod and the second sub-rod respectively.

[0011] In some embodiments, a gap between adjacent ends of the first sub-rod and the second sub-rod is 1-8 mm.

[0012] In some embodiments, the connection limiting component further includes:

[0013] A first connecting column, coaxially inserted into the end of the first branch rod facing the second branch rod;

[0014] A second connecting column, coaxially inserted into the end of the second branch rod facing the first branch rod;

[0015] The ends of the first connecting column and the second connecting column close to each other are respectively provided with plug-in slots adapted to the shape of the connecting piece, and the two ends of the connecting piece are respectively inserted into the two plug-in slots.

[0016] In some embodiments, the cross-section of the plug-in slot is rectangular, the connecting member is a connecting piece, and the width of the plug-in slot is slightly greater than the thickness of the connecting piece.

[0017] In some embodiments, a surface of one of the first connecting column and the first branch rod is provided with a rotation-stopping protrusion, and a surface of the other of the first connecting column and the first branch rod is provided with a rotation-stopping groove, and the rotation-stopping protrusion fits into the rotation-stopping groove.

[0018] In some embodiments, a surface of one of the second connecting column and the second branch rod is provided with a rotation-stopping protrusion, and a surface of the other of the second connecting column and the second branch rod is provided with a rotation-stopping groove, and the rotation-stopping protrusion fits into the rotation-stopping groove.

[0019] A handrail comprises at least one pressure-reducing and adjusting connecting rod structure as described above; when there are multiple pressure-reducing and adjusting connecting rod structures, the multiple pressure-reducing and adjusting connecting rod structures are connected end to end.

[0020] A handrail, comprising:

[0021] A joint connecting piece and the two pressure reducing and adjusting connecting rod structures, wherein the two pressure reducing and adjusting connecting rod structures are respectively hinged on two sides of the joint connecting piece.

[0022] The above-mentioned pressure reducing and adjusting connecting rod structure and handrail have at least the following beneficial technical effects:

[0023] In this embodiment, since the first branch rod and the second branch rod are hinged, the two can be folded relative to each other and the angle between them can change, which can release the force applied to the pressure-reducing adjusting link structure, avoid the pressure-reducing adjusting link structure from being broken, or reduce the pressure transmitted between the pressure-reducing adjusting link and the hinged joint, reduce wear, and make the folding and storage process of the pressure-reducing adjusting link and the hinged joint smoother.

[0024] At the same time, the elastic component bends and deforms, which can buffer the relative movement between the first sub-rod and the second sub-rod and reduce the speed of the angle change between the two, making the angle change process gentle and gradual, and releasing the pressure applied to the pressure-reducing adjustment connecting rod structure more gradual, avoiding sudden release of pressure causing a violent collision at the joint between the first sub-rod and the second sub-rod; the pressure is also released more, which is more conducive to avoiding breakage or wear of the rod.

[0025] The elastic component of the present application accumulates elastic potential energy when bent. When the pressure on the decompression adjustment connecting rod structure is eliminated, the accumulated elastic potential energy is released, which is conducive to promoting the first branch rod 30a and the second branch rod to recover from the folded state to the initial straight state with an angle of 180°. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a pressure reducing adjusting connecting rod structure provided in an embodiment of the present application in a straight state;

[0027] Figure 2 A state diagram of the pressure reducing and adjusting connecting rod structure provided in one embodiment of the present application after being subjected to force;

[0028] Figure 3 for Figure 2 The schematic diagram omitting the elastic component;

[0029] Figure 4 A schematic diagram of a pressure reducing and adjusting connecting rod structure provided in an embodiment of the present application being applied to a child's bed;

[0030] Figure 5 A schematic diagram of an armrest provided in an embodiment of the present application;

[0031] Figure 6 for Figure 5 Schematic diagram of the deformation of the armrest (elastic components omitted);

[0032] Figure 7 for Figure 6 A schematic diagram of the first branch rod and the second branch rod in a perspective state;

[0033] Figure 8 for Figure 7 Schematic diagram of the assembly of the connecting member, the first connecting column and the second connecting column;

[0034] Fig. 9 for Figure 4 The state diagram of the children's bed after folding;

[0035] Fig.10 for Figure 4 Bottom enlarged image in ;

[0036] In the figure,

[0037] 100, connecting member; 101a, first connecting column; 101b, second connecting column; 102, plug-in slot; C, pin;

[0038] A. Anti-rotation protrusion; B. Anti-rotation groove;

[0039] 200, elastic component;

[0040] 10. Install the sleeve;

[0041] 20. Joint connector; 21. First slide slot; 22. Second slide slot; 23. Third slide slot;

[0042] 30. Pressure reducing and adjusting connecting rod structure; 30a. First branch rod; 30b. Second branch rod; 31. First guide pin; 32. Second guide pin;

[0043] 40. lower enclosure rod; 41. third guide pin; 50. vertical rod; 60. support seat;

[0044] 70. Connecting rod assembly; 71. Upper connecting rod; 72. First lower connecting rod; 73. Second lower connecting rod; 80. Unlocking base; 81. Upper unlocking base; 82. Lower unlocking base. DETAILED DESCRIPTION

[0045] The present application will be further described below in conjunction with the accompanying drawings.

[0046] In order to facilitate the understanding of the present application, various embodiments defined by the claims of the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present application are given in the drawings, which contain various specific details to assist in the understanding, but these details should be regarded as exemplary only. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Accordingly, those of ordinary skill in the art will recognize that changes and improvements can be made to the various embodiments described herein without departing from the scope of the present application defined by the attached claims. In addition, for the sake of clarity and brevity, the description of well-known functions and structures may be omitted.

[0047] It will be apparent to those skilled in the art that the following description of various embodiments of the present application is provided for illustrative purposes only and not for limiting the present application as defined by the appended claims.

[0048] Throughout the specification and claims of this application document, the words "include" and "comprise" and variations of the words, such as "include" and "include" mean "including but not limited to", and are not intended to (and will not) exclude other components, wholes or steps. Features, wholes or characteristics described in conjunction with a specific aspect, embodiment or example of the present application will be understood to be applicable to any other aspect, embodiment or example described herein, unless incompatible therewith.

[0049] It should be understood that the singular forms "a", "an", and "the" include plural references unless the context clearly dictates otherwise. The expressions "including" and / or "may include" used in this application are intended to indicate the presence of corresponding functions, operations, or elements, and are not intended to limit the presence of one or more functions, operations, and / or elements. In addition, in this application, the terms "including" and / or "having" are intended to indicate the presence of characteristics, quantities, operations, elements, and components, or combinations thereof, disclosed in the application documents. Therefore, the terms "including" and / or "having" should be understood as additional possibilities of one or more other characteristics, quantities, operations, elements, and components, or combinations thereof.

[0050] In the present application, the expression "or" includes any or all combinations of the words listed together. For example, "A or B" may include A or B, or may include both A and B.

[0051] It should be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intervening element; when an element is considered to be "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or there can also be an intervening element.

[0052] The terms “upper”, “lower”, “left”, “right”, etc. mentioned in the text are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the context of the relevant field and this specification, and should not be interpreted in an idealized or overly formal sense unless explicitly defined as such herein. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0054] like Figure 1-Figure 3 , this embodiment provides a pressure reducing and adjusting connecting rod structure, comprising:

[0055] A first sub-rod 30a and a second sub-rod 30b, wherein the first sub-rod 30a and the second sub-rod 30b are hingedly connected with each other with a movable gap therebetween;

[0056] The elastic component 200 is disposed between the first sub-rod 30a and the second sub-rod 30b, and both ends of the elastic component 200 are respectively sleeved on the first sub-rod 30a and the second sub-rod 30b, and is configured to bend and deform when the angle between the first sub-rod 30a and the second sub-rod 30b changes.

[0057] Specifically, the pressure reducing adjusting connecting rod structure 30 is normally in Figure 1 When the pressure reducing adjusting link structure 30 is subjected to downward pressure and / or extrusion force from both ends of the pressure reducing adjusting link structure 30, since there is a movable gap between the first sub-rod 30a and the second sub-rod 30b and they are hingedly connected, when the pressure reducing adjusting link structure 30 rotates relative to the joint connection member 20, the first sub-rod 30a and the second sub-rod 30b rotate relatively and the angle between them changes.

[0058] In the above process, when the decompression adjusting link structure 30 is subjected to force, the first branch rod 30a and the second branch rod 30b are relatively folded and the angle between them changes, which can release the pressure applied to the decompression adjusting link structure 30 and avoid being directly broken, which is conducive to making the folding process smoother.

[0059] In addition, the present application also provides an elastic component 200, which can be an elastic sleeve structure made of a spring or polyurethane. When the first branch rod 30a and the second branch rod 30b are relatively folded and the angle between them changes, the elastic component 200 is bent and deformed, which can buffer the relative movement between the first branch rod 30a and the second branch rod 30b and reduce the speed of the angle change between them, so that the angle change process is gentle and gentle, and the pressure applied to the pressure reducing and adjusting connecting rod structure 30 is released more slowly, avoiding the sudden release of pressure causing a violent collision at the joint between the first branch rod 30a and the second branch rod 30b; the pressure is released more, which is more conducive to avoiding the rod being broken by pressure, or further reducing the pressure transmitted to the pressure reducing and adjusting connecting rod structure 30 and the hinged joint to reduce wear, and is more conducive to making the folding process smoother.

[0060] In addition, the elastic component 200 of the present application accumulates elastic potential energy when bent. When the pressure on the decompression adjustment link structure 30 is eliminated, the accumulated elastic potential energy is released, which is conducive to promoting the first branch rod 30a and the second branch rod 30b to recover from the folded state to the initial straight state with an angle of 180°.

[0061] It is worth noting that in addition to being compressed, the pressure-reducing and adjusting connecting rod structure 30 will also bend due to gravity when its own weight is too large. The split rod design of the present application will also release this force to prevent the pressure-reducing and adjusting connecting rod structure 30 from breaking.

[0062] The pressure-reducing and adjusting connecting rod structure can be directly used as an armrest or fence of a child's bed. A plurality of pressure-reducing and adjusting connecting rod structures can be connected end to end to form an armrest or fence.

[0063] like Figure 4 The figure shows an example of a scenario in which the pressure reducing and adjusting connecting rod structure is applied to a folding child bed. The child bed includes:

[0064] The armrest includes a joint connection member 20 and two pressure-reducing adjustment link structures 30, and the two pressure-reducing adjustment link structures 30 are respectively hinged on both sides of the joint connection member 20; the ends of the pressure-reducing adjustment link structures 30 that are away from each other are rotatably connected to a mounting sleeve 10, that is, an armrest is provided between adjacent mounting sleeves;

[0065] Along the direction from the joint connector 20 to the mounting sleeve 10, the decompression adjustment link structure 30 includes a first branch rod 30a and a second branch rod 30b which are arranged in sequence;

[0066] When the pressure reducing and adjusting link structure 30 is subjected to pressure, such as when it is rotated and folded relative to the joint connector 20 and subjected to downward pressure, the first branch rod 30a and the second branch rod 30b are relatively folded and the angle between the two branches changes.

[0067] Specifically, when the armrests are folded to compress the bed, the decompression adjusting link structure 30 will be under pressure during the falling process (including bearing downward pressure and / or bearing extrusion pressure from both ends of the upper surrounding rod), and will rotate relative to the joint connection 20 to apply force to the joint connection 20. In this case, since there is a movable gap between the first branch rod 30a and the second branch rod 30b and they are hingedly connected, when the decompression adjusting link structure 30 rotates relative to the joint connection 20, the first branch rod 30a and the second branch rod 30b are relatively folded and the angle between them changes.

[0068] In the above process, when the pressure-reducing adjusting link structure 30 is subjected to force, the first branch rod 30a and the second branch rod 30b are relatively folded and the angle between them changes, which can release the pressure applied to the pressure-reducing adjusting link structure 30 and the joint connecting member 20, avoid the upper fence from being bent and broken, or reduce the pressure transmitted to the movable hinge connecting the pressure-reducing adjusting link structure 30 and the joint connecting member 20, causing relative wear, which is conducive to making the folding process smoother.

[0069] It is worth noting that the above is an explanation of the principle of the present application using the folding process of the bed as an example. When the upper fence of the child's bed is fully unfolded and is subjected to downward pressure or extrusion force, the first branch rod 30a and the second branch rod 30b will also be relatively folded and the angle will change to release the pressure, which has the same effect as in the above-mentioned folding process and will not be repeated here.

[0070] like Figure 6 In some embodiments, the first sub-rod 30a and the second sub-rod 30b are spaced apart and connected by a connecting and limiting component; the connecting and limiting component includes:

[0071] The connecting member 100 is located between the first sub-rod 30a and the second sub-rod 30b, and two ends of the connecting member 100 are rotatably connected to the first sub-rod 30a and the second sub-rod 30b respectively.

[0072] Specifically, the first sub-rod 30a and the second sub-rod 30b are spaced apart so that there is a sufficiently large movable gap between the two to prevent the opposite ends of the first sub-rod 30a and the second sub-rod 30b from getting stuck or interfering with each other when the first sub-rod 30a and the second sub-rod 30b rotate relative to each other; the two ends of the connecting member 100 can be hinged to the first sub-rod 30a and the second sub-rod 30b through the pin C respectively, and the connecting member 100 is used to connect the first sub-rod 30a and the second sub-rod 30b that are spaced apart to prevent the two from loosening, or the entire decompression adjustment connecting rod structure 30 from twisting and deforming when pressed down with force.

[0073] like Figure 7 In some embodiments, the gap between the adjacent ends of the first sub-rod 30a and the second sub-rod 30b is 2-6 mm.

[0074] Specifically, the gap between the adjacent ends of the first sub-rod 30a and the second sub-rod 30b can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm or 8mm. The use of this gap size can ensure that the movable gap between the first sub-rod 30a and the second sub-rod 30b is sufficient to prevent the opposite ends of the first sub-rod 30a and the second sub-rod 30b from making hard contact or interfering with each other when pressing downward with force, so that the pressure release process of the present application is smoother.

[0075] like Figure 7 and Figure 8 In some embodiments, the connection limiting component further includes:

[0076] A first connecting column 101a is coaxially inserted into the end of the first branch rod 30a facing the second branch rod 30b;

[0077] A second connecting column 101b is coaxially inserted into the end of the second branch rod 30b facing the first branch rod 30a;

[0078] The ends of the first connecting column 101 a and the second connecting column 101 b that are close to each other are respectively provided with plugging grooves 102 that match the shape of the connecting member 100 , and the two ends of the connecting member 100 are respectively inserted into the two plugging grooves 102 .

[0079] During installation, the two ends of the connector 100 are respectively inserted into the insertion slots 102 of the first connector column 101a and the second connector column 101b, and then the first connector column 101a and the second connector column 101b are respectively coaxially inserted and fixedly installed in the openings at the ends of the first sub-rod 30a and the second sub-rod 30b. The first connector column 101a and the second connector column 101b can also be connected to the respective sub-rods through the pins C. The two ends of the connector 100 are respectively inserted into the insertion slots 102 of the first connector column 101a and the second connector column 101b, and the connector 100 and the insertion slots 102 are used to limit the position, so as to prevent the first sub-rod 30a and the second sub-rod 30b from axially rotating when the force is applied downward, thereby preventing the decompression adjustment connecting rod structure 30 from being twisted and deformed, or the first sub-rod 30a and the second sub-rod 30b from being offset up and down and dislocated, thereby damaging the fence structure.

[0080] like Figure 8 In some embodiments, the cross section of the plug slot 102 is rectangular, the connector 100 is a connecting piece, and the width of the plug slot 102 is slightly greater than the thickness of the connecting piece. Specifically, the plug slot 102 and the connecting piece are completely matched in shape, which has a better effect on the displacement and rotation limiting of the first sub-rod 30a and the second sub-rod 30b, and is convenient for plugging and assembly.

[0081] like Figure 6 In some embodiments, a stop protrusion A is provided on the surface of one of the first connecting column 101a and the first branch rod 30a, and a stop groove B is provided on the surface of the other of the first connecting column 101a and the first branch rod 30a, and the stop protrusion A is fitted into the stop groove B.

[0082] Specifically Figure 6-Figure 8 For example, when the anti-rotation protrusion A on the surface of the first connecting column 101a is engaged with the anti-rotation groove B embedded in the first sub-rod 30a, the relative position between the first connecting column 101a and the first sub-rod 30a along the circumferential axis can be fixed, and the two cannot rotate relative to each other around the axis, thereby preventing the first sub-rod 30a and the first connecting column 101a from rotating relative to the axis when folded or pressed downward with force, thereby causing the first sub-rod 30a to axially rotate and twist relative to the docked second sub-rod 30b.

[0083] like Figure 6 In some embodiments, a stop protrusion A is provided on the surface of one of the second connecting column 101b and the second branch rod 30b, and a stop groove B is provided on the surface of the other of the second connecting column 101b and the second branch rod 30b, and the stop protrusion A is fitted into the stop groove B.

[0084] Specifically, when the anti-rotation protrusion A on the surface is engaged with and embedded in the anti-rotation groove B, the relative position between the second connecting column 101b and the second sub-rod 30b along the axial direction can be fixed, and the two cannot rotate relative to each other around the axis, thereby preventing the second sub-rod 30b and the second connecting column 101b from rotating relative to the axis when pressing downward with force, thereby causing the second sub-rod 30b to axially rotate and twist relative to the docked first sub-rod 30a.

[0085] like Figure 4 and Fig. 9 The actual application scenario of the decompression connecting rod structure of the present application is specifically demonstrated in detail. The child bed itself also includes: two lower surrounding rods 40, which are arranged side by side under a decompression adjustment connecting rod structure 30; the ends of the lower surrounding rods 40 that are away from each other are respectively rotatably connected to the mounting sleeve 10, and the ends that are close to each other are respectively slidably connected to the joint connecting member 20;

[0086] The joint connecting member 20 is symmetrically provided with two first sliding grooves 21 near the upper part, and the distance between the two first sliding grooves 21 gradually increases from top to bottom; a second sliding groove 22 is respectively provided on the side opposite to each other of the two first sliding grooves 21;

[0087] A first guide pin 31 is provided at one end of the two pressure-reducing adjustment link structures 30 close to each other, and the first guide pin 31 is embedded in and can slide along the first slide groove 21; the rod body of the pressure-reducing adjustment link structure 30 is slidably connected with the joint connector 20, and a second guide pin 32 is provided on the rod body of the pressure-reducing adjustment link structure 30, and the second guide pin 32 is slidably embedded in the second slide groove 22;

[0088] When the fence structure is unfolded, the first guide pin 31 is placed at the top of the first slide groove 21, and the second guide pin 32 is placed at an end of the second slide groove 22 close to the first slide groove 21; when the fence structure is folded, the first guide pin 31 slides to the bottom of the first slide groove 21, and the second guide pin 32 slides to the end away from the first slide groove 21.

[0089] Specifically, each mounting sleeve 10 is connected to a support seat 60 through a vertical rod 50, and a plurality of support seats 60 are respectively connected to an unlocking base 80 through a connecting rod group 70; when folding the bed frame, the unlocking base 80 is held by hand and lifted upward, and a plurality of support seats 60 are simultaneously closed toward the unlocking base 80; at this time, the lower parts of the four vertical rods 50 are pulled inward; since the length of the lower surrounding rod 40 remains unchanged, when the lower part of the vertical rod 50 is retracted inward, the upper part of the vertical rod 50 will expand outward, and the upper part of the vertical rod 50 will be pulled through the mounting sleeve 10 The decompression adjusting link structure 30 is moved outward, and when the decompression adjusting link structure 30 moves outward, it drives the first guide pin 31 to gradually move outward and downward along the first slide groove 21. At the same time, the joint connection part 20 gradually falls down under the overall inward action of the vertical rod 50. In this process, the decompression adjusting link structure 30 can also be pressed down to accelerate the folding process; when the unlocking base 80 is lifted to the highest point, the first guide pin 31 slides to the bottom of the first slide groove 21, the joint connection part 20 drops to the lowest point, and the entire bed body is also folded and contracted.

[0090] In this embodiment, the connection part between the pressure reducing and adjusting link structure 30 and the joint connecting member 20 is a sliding connection, and the lower surrounding rod 40 and the joint connecting member 20 are a sliding connection, so that the various components of the armrest have sufficient movement clearance when deforming from unfolding to folding, so that flexible deformation can be achieved. Since the bed body is easy to deform, it does not take a lot of effort to compress the bed body, and the probability of the rod being broken or the connected parts being worn due to a large force can be reduced.

[0091] refer to Figure 4 and Fig. 9 In some embodiments, the lower part of the joint connector 20 is symmetrically provided with a third slide groove 23 extending up and down, and the ends of the two lower enclosure rods 40 close to each other are provided with a third guide pin 41, and the third guide pin 41 is embedded in and can slide along the third slide groove 23;

[0092] When the fence structure is unfolded, the third guide pin 41 is placed at the bottom of the third slide slot 23 , and when the fence structure is folded, the third guide pin 41 slides toward the top of the third slide slot 23 .

[0093] During the folding process, the joint connector 20 gradually descends, and the descending of the joint connector 20 tends to drive the lower enclosure rod 40 to descend at the same time. The third slide groove 23 provides a movable gap for the lower enclosure rod 40, so that the lower enclosure rod 40 and the joint connector 20 are relatively independent and do not need to move synchronously with the joint connector 20, thereby ensuring that the joint connector 20 can move freely during folding or unfolding, and the folding or unfolding of the bed body is more flexible and smooth.

[0094] A bed includes the fence structure; each of the mounting sleeves 10 is connected to a support seat 60 via a vertical rod 50, and each of the support seats 60 is hinged to an unlocking base 80 arranged in the middle of the lower part of the bed body via a connecting rod group 70.

[0095] refer to Fig.10 In some embodiments, the unlocking base 80 includes an upper unlocking base 81 and a lower unlocking base 82 plugged in up and down, the connecting rod group 70 includes an upper connecting rod 71 and a lower connecting rod group arranged side by side up and down, and the two ends of the upper connecting rod 71 are respectively hinged to the side of the upper unlocking base 81 and the support seat 60; the lower connecting rod group includes a hinged first lower connecting rod 72 and a second lower connecting rod 73, the outer end of the first lower connecting rod 72 is hinged to the support seat 60, and the inner end of the second lower connecting rod 73 is hinged to the lower unlocking base 82.

[0096] refer to Fig. 9 When folding the bed frame, hold the upper unlocking base 81 with your hand and lift it upward, so that the upper unlocking base 81 is separated from the lower unlocking base 82 and moves upward at the same time; when the upper unlocking base 81 and the lower unlocking base 82 move upward, they will simultaneously drive one end of the connected upper connecting rod 71 and one end of the lower connecting rod group to swing upward. At this time, the other end of the upper connecting rod 71 and the other end of the lower connecting rod group pull the multiple support seats 60 to move closer to the unlocking base 80 at the same time. At this time, the support seats 60 at the four corners respectively drive the lower parts of the four vertical rods 50 to retract inward, and the folding action begins.

[0097] In this embodiment, the upper unlocking base 81 and the lower unlocking base 82 are plug-in locked and separated, and the structure is simple. During operation, the upper unlocking base 81 can be lifted upward to achieve unlocking, and the connecting rods are hingedly connected to facilitate linkage and flexible unfolding and folding.

[0098] In the above description, although expressions such as "first" and "second" may be used to describe various elements of the present application, they are not intended to limit the corresponding elements. For example, the above expressions are not intended to limit the order or importance of the corresponding elements. The above expressions are used to distinguish one component from another component.

[0099] The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. A singular expression includes a plural expression unless there is a significant difference in context or scheme between them.

[0100] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.

[0101] Those skilled in the art will understand that the various technical features of the above-described embodiments may be omitted, added or combined in any manner accordingly. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, and the simple transformation methods that can be thought of by those skilled in the art and the solutions for making adaptive and functional structural transformations to the prior art should be considered to be within the scope of this specification.

[0102] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that although the present application has been shown and described with reference to various embodiments, it is possible for a person of ordinary skill in the art to make various deformations and improvements in several forms and details without departing from the concept of the present application, without departing from the scope of the present application defined by the attached claims, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application of the present application shall be subject to the attached claims.

Claims

1. A pressure reducing and adjusting connecting rod structure, characterized in that: include: First point; a second branch rod, wherein the second branch rod is hingedly connected to the first branch rod with a movable gap between them; The elastic component is disposed between the first sub-rod and the second sub-rod, and both ends of the elastic component are respectively sleeved and installed on the first sub-rod and the second sub-rod, and is configured to bend and deform when the angle between the first sub-rod and the second sub-rod changes.

2. A pressure reducing and adjusting connecting rod structure according to claim 1, characterized in that: in, When the pressure-reducing and adjusting connecting rod structure is compressed, the angle between the first branch rod and the second branch rod changes.

3. The pressure reducing and adjusting connecting rod structure according to claim 1, characterized in that: The first branch rod and the second branch rod are spaced apart and connected via a connecting and limiting component; the connecting and limiting component comprises: The connecting member is located between the first sub-rod and the second sub-rod, and two ends of the connecting member are rotatably connected to the first sub-rod and the second sub-rod respectively.

4. A pressure reducing and adjusting connecting rod structure according to claim 3, characterized in that: The connection limiting component also includes: A first connecting column, coaxially inserted into the end of the first branch rod facing the second branch rod; A second connecting column, coaxially inserted into the end of the second branch rod facing the first branch rod; The ends of the first connecting column and the second connecting column close to each other are respectively provided with plug-in slots adapted to the shape of the connecting piece, and the two ends of the connecting piece are respectively inserted into the two plug-in slots.

5. A pressure reducing and adjusting connecting rod structure according to claim 4, characterized in that: The cross section of the plug-in slot is rectangular, the connecting piece is a connecting piece, and the width of the plug-in slot is slightly greater than the thickness of the connecting piece.

6. A pressure reducing and adjusting connecting rod structure according to claim 4, characterized in that: A rotation-stopping protrusion is provided on the surface of one of the first connecting column and the first branch rod, and a rotation-stopping groove is provided on the surface of the other of the first connecting column and the first branch rod, and the rotation-stopping protrusion fits into the rotation-stopping groove.

7. The pressure reducing and adjusting connecting rod structure according to claim 4, characterized in that: A rotation-stopping protrusion is provided on the surface of one of the second connecting column and the second branch rod, and a rotation-stopping groove is provided on the surface of the other of the second connecting column and the second branch rod, and the rotation-stopping protrusion is fitted into the rotation-stopping groove.

8. The pressure reducing and adjusting connecting rod structure according to claim 1, characterized in that: The elastic component includes a spring or an elastic sleeve.

9. An armrest, characterized in that: It comprises at least one pressure reducing and adjusting connecting rod structure as described in any one of claims 1 to 8; when there are multiple pressure reducing and adjusting connecting rod structures, the multiple pressure reducing and adjusting connecting rod structures are connected end to end.

10. An armrest, characterized in that: include: A joint connecting piece and two pressure reducing and adjusting connecting rod structures as described in any one of claims 1 to 8, wherein the two pressure reducing and adjusting connecting rod structures are respectively hinged on two sides of the joint connecting piece.

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