Adjustable enclosure pole and folding bed

Abstract

The application relates to an adjustable surrounding rod and a folding bed, which comprises a rod body, an adjustable end of the rod body is close to a mounting sleeve, and the rod body is rotationally connected with a sliding sleeve; the sliding sleeve is configured to be slidably installed on a sliding groove at the side of the mounting sleeve; a pull pin is inserted into the adjustable end of the rod body along the length direction of the rod body, one end of the pull pin towards the mounting sleeve is provided with a connecting guide block; a lock pin is arranged at one end of the pull pin towards the mounting sleeve, the lock pin is inserted into a lock groove of the mounting sleeve to be interlocked with the mounting sleeve; a guide slide is arranged on the surface of the lock pin and is matched and clamped together with the connecting guide block, the extension track of the guide slide is consistent with the movement track of the connecting guide block when the rod body rotates, and the guide slide is used for providing guidance when the rod body rotates; a driving component is matched and connected with the pull pin and is used for driving the pull pin to move away from the mounting sleeve so as to drive the lock pin to be separated from the lock groove of the mounting sleeve, thereby releasing the interlocking between the lock pin and the mounting sleeve.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of bed design, in particular to an adjustable surrounding rod and a folding bed. BACKGROUND

[0002] The existing children's bed is mainly used to restrict the baby inside to provide a safe play space and sleep space.

[0003] The existing children's bed frame is very inconvenient to disassemble after use. A screwdriver is needed to disassemble the bolts at the joint of the frame, and the disassembled bolts and frame joints are easy to lose during storage, affecting the normal installation and use of the subsequent play bed.

[0004] To solve this problem, the unused children's bed can be considered to be folded and stored. However, the existing storable children's bed can be folded, but the folding hinge point of the top rail and the mounting sleeve is fixed, so the top rail cannot be freely adjusted in height while folding, and therefore cannot meet the use requirements of multiple scenes and multiple needs, which is not conducive to market promotion. SUMMARY

[0005] Therefore, it is necessary to provide an adjustable surrounding rod and a folding bed to solve at least part of the above problems.

[0006] An adjustable surrounding rod comprises:

[0007] A rod body, the adjustable end of the rod body is close to a mounting sleeve, and the rod body is rotationally connected with a sliding sleeve;

[0008] The sliding sleeve is configured to be slidably installed on the sliding groove on the side of the mounting sleeve;

[0009] A pull pin is inserted into the adjustable end of the rod body along the length direction of the rod body, and one end of the pull pin towards the mounting sleeve is provided with a connecting guide block;

[0010] A lock pin is provided on the one end of the pull pin towards the mounting sleeve, the lock pin is inserted into the lock slot of the mounting sleeve to interlock with the mounting sleeve; the surface of the lock pin is provided with a guide slide that is matched and clamped together with the connecting guide block, and the extension trajectory of the guide slide is consistent with the movement trajectory of the connecting guide block when the rod body rotates, for providing guidance when the rod body rotates;

[0011] A driving component is matched and connected with the pull pin, for driving the pull pin to move away from the mounting sleeve to drive the lock pin to come out of the lock slot of the mounting sleeve, so as to release the interlocking between the lock pin and the mounting sleeve.

[0012] The adjustable surrounding rod and the folding bed have at least the following beneficial technical effects:

[0013] (1) The interlocking state of the rod body and the mounting sleeve is stable; when the interlocking between the locking pin and the mounting sleeve is released, the locking between the sliding sleeve of the adjustable end of the rod body and the mounting sleeve is also released, at this time the sliding sleeve can be operated to slide up and down along the mounting sleeve, thereby adjusting the height position of the rod body up and down, which can be used as an upper rod of a baby bed, and the height can be freely adjusted, so as to meet the use requirements of multiple scenes and multiple needs, and is beneficial to market promotion.

[0014] (2) Furthermore, while adjusting the height of the rod body, the rod body can also rotate relative to the sliding sleeve, the guide slide provides guidance, and the connecting guide block of the pull pin will slide along the guide slide surface of the locking pin, without collision or motion interference with the locking pin, so as to ensure that the rod body can be freely rotated in the interlocking or height adjustment state, and the bed body can be folded and stored at any time. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The unfolded schematic view of the folding bed provided by an embodiment of the present application;

[0016] Figure 2 The schematic view of the mounting sleeve, the adjustable surrounding rod and the sliding sleeve in the folding bed in FIG. Figure 1

[0017] The schematic view of the mounting sleeve, the adjustable surrounding rod and the sliding sleeve in the folding bed in FIG. Figure 3 Figure 2 The perspective view of the folding bed in FIG.

[0018] Figure 4 Figure 3 The top view of the folding bed in FIG.

[0019] Figure 5 The schematic view of the mounting sleeve, the adjustable surrounding rod and the sliding sleeve in the folding bed in FIG. Figure 3

[0020] Figure 6 The back view of the folding bed in FIG. Figure 3

[0021] Figure 7 The enlarged view of A in the folding bed in FIG. Figure 1

[0022] Figure 8 The folding process schematic view of the folding bed in FIG. Figure 1

[0023] Figure 9 The schematic view of the mounting sleeve, the pull pin and the locking pin in the folding bed in FIG. Figure 8

[0024] Figure 10 The enlarged view of B in the folding bed in FIG. Figure 8 ​​​​​​​​

[0025] Fig. 1 is a perspective view of the adjustable jointed rod according to the present application;

[0026] 110, rod body; 111, blocking pin;

[0027] 120, sliding sleeve; 121, guiding support;

[0028] 130, pull pin; 131, connecting guiding block; 132, mounting slot; 132a, inclined driving slot wall; 133, connecting body; 134, guiding slot;

[0029] 140, locking pin; 141, guiding slide; 142, slot wall;

[0030] 150, driving component; 151, unlocking button; 151a, inclined driving surface;

[0031] 160, first spring;

[0032] 170, second spring;

[0033] 180, rotating connecting pin;

[0034] 10, mounting sleeve; 11, sliding slot; 12, locking slot;

[0035] 20, jointed connecting piece; 21, first sliding slot; 22, second sliding slot;

[0036] 30, adjustable surrounding rod; 31, first guiding pin; 32, second guiding pin;

[0037] 40, lower surrounding rod;

[0038] 60, vertical rod;

[0039] 70, supporting seat;

[0040] 80, connecting rod set; 81, first connecting rod; 82, second connecting rod;

[0041] 90, unlocking base; 91, upper unlocking base; 92, lower unlocking base. DETAILED DESCRIPTION

[0042] The present application will be further described below with reference to the accompanying drawings.

[0043] For the purposes of the present application, various embodiments will be described herein with reference to the accompanying drawings. These drawings depict preferred embodiments of the application and are therefore not to be considered limiting in scope. The application can be implemented in numerous ways, including as a process, an apparatus, a system, a device or a combination of the foregoing. Various embodiments of the application will be described using terms commonly employed by those skilled in the art to convey the substance of their work to others skilled in the art. However, it will be apparent to those skilled in the art that embodiments of the application can be practiced with only some of the described elements, components, features, objects, and / or steps. Furthermore, in certain instances, well-known structures, materials, and / or operations have been omitted in order to avoid obscuring the application. Consequently, the disclosure is not intended to be limited to the embodiments set forth herein, but has wide applicability and scope.

[0044] It will be apparent to those skilled in the art that various embodiments of the application have been described herein for purposes of explanation and illustration, and that various changes can be made without departing from the scope of the application as defined by the appended claims.

[0045] Throughout this application the word "comprise," or variations such as "comprises" or "comprising," will be understood to imply the inclusion of further non-speci fied elements or integers, but not to the exclusion of other elements or integers. The expression "in one embodiment" or "in an embodiment" as used herein does not specify a single embodiment, and the expression "in one embodiment" or "in an embodiment" can occur within various embodiments of the application.

[0046] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. The terms "comprises," "comprising," "includes," and / or "including," as used herein, are specifically intended to be open-ended and to mean that one or more features, elements, components, and / or steps can be added to the described implementation. The terms "comprises," "comprising," "includes," and / or "including," as used herein, are specifically intended to be open-ended and to mean that one or more features, elements, components, and / or steps can be added to the described implementation. Additionally, the terms "comprises," "comprising," "includes," and / or "including," as used herein, are specifically intended to be open-ended and to mean that one or more other features, elements, components, and / or steps can be added in addition to those that are recited.

[0047] In the present application, the term "or" includes any or all combinations of one or more of the associated listed items. For example, "A or B" can include A, or B, or both A and B.

[0048] It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled or intervening elements can also be present.

[0049] The terms "up," "down," "left," and "right" mentioned in the text are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms (such as those defined in common dictionaries) should be interpreted as having the meaning consistent with the relevant field and the context of this specification, and should not be interpreted in an idealized or overly formal sense unless expressly defined herein. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0051] like Figures 1-6 As shown, in one embodiment of the present invention, an adjustable support rod 30 is provided, comprising:

[0052] A rod 110, the adjustable end of which is close to the mounting sleeve 10, and the rod 110 is rotatably connected to the sliding sleeve 120;

[0053] The sliding sleeve 120 is configured to be slidably mounted on the side of the mounting sleeve 10 via the sliding groove 11;

[0054] Pull pin 130 is inserted into the adjustable end of rod 110 along the length of rod 110, and a connecting guide block 131 is provided at the end of pull pin 130 facing mounting sleeve 10;

[0055] A locking pin 140 is provided at the end of the pull pin 130 facing the mounting sleeve 10. The locking pin 140 is inserted into the locking groove 12 of the mounting sleeve 10 to interlock with the mounting sleeve 10. The surface of the locking pin 140 is provided with a guide slide 141 that engages with the connecting guide block 131. The extension trajectory of the guide slide 141 is consistent with the movement trajectory of the connecting guide block 131 when the rod 110 rotates, and is used to provide guidance when the rod 110 rotates.

[0056] The driving component 150 is connected to the pull pin 130 and is used to drive the pull pin 130 to move away from the mounting sleeve 10 so as to drive the locking pin 140 out of the locking groove 12 of the mounting sleeve 10, thereby releasing the interlock between the locking pin 140 and the mounting sleeve 10.

[0057] Specifically, in the normal use state, the locking pin 140 is inserted into the locking groove 12 of the mounting sleeve 10 to interlock with the mounting sleeve 10, at this time the locking pin 140 is inserted and locked with the mounting sleeve 10, so that the rod body 110 and the sliding sleeve 120 cannot slide up and down along the mounting sleeve 10; when the height needs to be adjusted, the driving component 150 is operated to drive the pull pin 130 to move away from the mounting sleeve 10 and drive the locking pin 140 to be disengaged from the locking groove 12 of the mounting sleeve 10, so that the interlocking between the locking pin 140 and the mounting sleeve 10 is released, at this time the sliding sleeve 120 and the rod body 110 connected with the sliding sleeve 120 can be operated to slide up and down along the mounting sleeve 10 to achieve height adjustment of the rod body 110. The locking groove 12 can be arranged in multiple numbers from the mounting sleeve 10 to the vertical rod 60 up and down, so that the locking pin 140 can be inserted into different locking grooves 12 at different heights, and the rod body 110 can be locked at different heights after adjustment.

[0058] In this application, the connecting guide block 131 of the pull pin 130 is always matched and clamped together with the guide slide 141 on the surface of the locking pin 140, and in the interlocking or releasing state for height adjustment, the rod body 110 can be rotated at any time, specifically, when the rod body 110 rotates relative to the sliding sleeve 120, the connecting guide block 131 of the pull pin 130 will just slide along the guide slide 141 on the surface of the locking pin 140, so that the rod body 110 can be freely rotated in the interlocking or height adjustment state, and the bed body can be folded and stored at any time.

[0059] The interlocking state of the rod body 110 and the mounting sleeve 10 in this embodiment is stable; after the interlocking between the locking pin 140 and the mounting sleeve 10 is released, the locking between the sliding sleeve 120 at the adjustable end of the rod body 110 and the mounting sleeve 10 is also released, at this time the sliding sleeve 120 can be operated to slide up and down along the mounting sleeve 10, so as to adjust and change the height position of the positioning rod body 110, and when used as an upper rod of a baby bed, the height can be freely adjusted, so as to meet the use requirements of multiple scenes and multiple needs, and is beneficial to market promotion.

[0060] Moreover, while adjusting the height of the rod body 110, the rod body 110 can also be rotated relative to the sliding sleeve 120, the guide slide 141 provides guidance, the connecting guide block 131 of the pull pin 130 will just slide along the guide slide 141 on the surface of the locking pin 140, and will not collide with or interfere with the movement of the locking pin 140, so that the rod body 110 can be freely rotated in the interlocking or height adjustment state, and the bed body can be folded and stored at any time.

[0061] Reference Figure 4 In some embodiments, the driving component 150 includes:

[0062] An unlocking button 151 is embedded in the installation groove 132 on the surface of the pull pin 130 through the rod body 110 from the outside, and the surface of the unlocking button 151 is provided with an inclined driving surface 151a which is at an angle with the embedding direction of the unlocking button 151;

[0063] The installation groove 132 is arranged along the length direction of the pull pin 130, and the groove wall away from the connecting guide block 131 is an inclined driving groove wall 132a;

[0064] The inclined driving surface 151a on the surface of the unlocking button 151 is in contact with the inclined driving groove wall 132a;

[0065] The unlocking button 151 is configured to be movable in the direction of being inserted into the installation groove 132, so that the inclined driving surface 151a slides relative to the inclined driving groove wall 132a to drive the pull pin 130 to move away from the installation sleeve 10, thereby driving the lock pin 140 to be out of the lock groove 12 of the installation sleeve 10 to release the interlocking between the lock pin 140 and the installation sleeve 10.

[0066] When the height needs to be adjusted, the unlocking button 151 is pressed, the inclined driving surface 151a slides relative to the inclined driving groove wall 132a, thereby driving the pull pin 130 to move away from the installation sleeve 10 to drive the lock pin 140 to be out of the lock groove 12 of the installation sleeve 10 to achieve the purpose of releasing the interlocking between the lock pin 140 and the installation sleeve 10, at this time, the sliding sleeve 120 and the rod body 110 connected with the sliding sleeve 120 can be operated to slide up and down along the installation sleeve 10 to achieve the height adjustment of the rod body 110.

[0067] The unlocking button 151 of the embodiment has simple structure, ingenious design, and utilizes the internal space of the pull pin 130 without occupying additional space, and can achieve the unlocking of the lock pin 140 by the unlocking button 151 through simple design; the structure is stable and will not appear misoperation.

[0068] When unlocking, it can be directly pressed manually, and the hand does not need to be moved between the rod body 110 and the installation sleeve 10 to operate laboriously, which is extremely convenient and labor-saving.

[0069] Reference Figure 4 In some embodiments, a first spring 160 is further included and arranged in the installation groove 132, and the two ends of the first spring 160 are respectively abutted against the stop pin 111 arranged in the rod body 110 and the groove wall of the installation groove 132 close to the connecting guide block 131, and the stop pin 111 is arranged between the first spring 160 and the unlocking button 151;

[0070] The first spring 160 is used to compress and accumulate elastic potential energy when the unlocking button 151 drives the pull pin 130 to move away from the mounting sleeve 10, and release the elastic potential energy and restore the initial length to drive the pull pin 130 to move reversely to the initial interlocking position when the unlocking button 151 is released.

[0071] The first spring 160 of the embodiment can shorten and accumulate elastic potential energy when the unlocking button 151 is pressed and drives the pull pin 130 to move away from the mounting sleeve 10, and lengthen and push the pull pin 130 to move reversely to the initial interlocking position when the unlocking button 151 is released, so that it is not necessary to design a reset structure or manually pull out the unlocking button 151, which is beneficial to simplify the design structure, save operation steps and realize automatic operation.

[0072] Reference Figure 4 In some embodiments, a second spring 170 is further included, which is arranged in the mounting groove 132, and two ends of the second spring 170 respectively abut against the inner wall of the rod body 110 and the unlocking button 151.

[0073] The second spring 170 is used to compress and accumulate elastic potential energy when the unlocking button 151 drives the pull pin 130 to move away from the mounting sleeve 10, and release the elastic potential energy and restore the initial length to drive the unlocking button 151 to move reversely to the initial position when the unlocking button 151 is released.

[0074] The second spring 170 of the embodiment can shorten and accumulate elastic potential energy when the unlocking button 151 is pressed and drives the pull pin 130 to move away from the mounting sleeve 10, and lengthen and push the unlocking button 151 to move reversely to the initial position when the unlocking button 151 is released, so that it is not necessary to design a reset structure or manually pull out the unlocking button 151, which is beneficial to simplify the design structure, save operation steps and realize automatic operation.

[0075] Reference Figure 3 In some embodiments, one end of the pull pin 130 towards the mounting sleeve 10 is provided with a connecting body 133, the connecting body 133 protrudes from the circumferential wall surface of the rod body 110, and the connecting guide block 131 is arranged on the connecting body 133.

[0076] The lock pin 140 is provided with a guide sliding groove, the guide sliding groove forms the guide sliding groove 141, the connecting guide block 131 is embedded in the guide sliding groove, and the connecting guide block 131 can move along the extension track of the guide sliding groove 141 when the rod body 110 rotates.

[0077] In this embodiment, the connecting body 133 for mounting the connecting guide block 131 is specially arranged at the part protruding from the circumferential wall of the rod body 110, and is not connected with the lock pin 140 at the end of the rod body 110, so that the problem of narrow mounting space, difficult installation and easy collision between components at the end of the rod body 110 can be avoided;

[0078] The guide chute is provided with a chute wall 142, and the connecting guide block 131 is directly embedded in the guide chute, and the embedded form is firm in connection, so that the pull pin 130 and the lock pin 140 can be stably connected, and the close connection and linkage can be maintained during unlocking and locking.

[0079] Reference Figure 3 In some embodiments, the chute wall 142 and the connecting body 133 of the guide chute are matched in shape on the side adjacent to each other, and are both arc surfaces, the extension direction of the arc surface is consistent with the movement track of the connecting guide block 131 when the rod body 110 rotates, and the guide is provided when the rod body 110 rotates.

[0080] Specifically, since the extension direction of the arc surface is consistent with the movement track of the connecting guide block 131 when the rod body 110 rotates, the connecting body 133 of the pull pin 130 will slide along the chute wall 142 of the guide chute when the rod body 110 rotates relative to the sliding sleeve 120, thereby providing a guide for the rotation of the rod body 110, ensuring that the rod body 110 rotates along the preset track without deviation or collision movement interference with the lock pin 140, especially when the rotation angle of the rod body 110 is too large and the folding degree is too large, the connecting guide block 131 is pulled out of the guide chute 141, the connecting body 133 of the pull pin 130 and the chute wall 142 of the guide chute can still be matched with each other, further ensuring that the rod body 110 can always rotate freely at a larger angle, and the bed body can be operated at any time to achieve the maximum folding and compression to the smallest size.

[0081] Reference Figure 3 In some embodiments, the pull pin 130 is provided with a guide groove 134 at the end of the mounting sleeve 10, which extends along the length direction of the pull pin 130; the rotating connecting pin 180 for connecting the rod body 110 and the sliding sleeve 120 is inserted into the guide groove 134, and the diameter of the rotating connecting pin 180 is consistent with the width size of the guide groove 134, for providing a guide for the movement of the pull pin 130.

[0082] The above arrangement can ensure that the pull pin 130 moves along the length direction and does not deviate laterally or rotate around the axis.

[0083] Reference Figure 3 In some embodiments, a guide bracket 121 is further included, which is arranged in the sliding sleeve 120; the guide bracket 121 is provided with a guide hole through which the lock pin 140 passes.

[0084] Specifically, the locking pin 140 is matched through the guide hole of the guide bracket 121, and can reciprocate under the guidance of the guide hole, so that the locking pin 140 can move along the preset direction and cannot be laterally deviated or rotated.

[0085] As shown in the drawings, Figure 1 In an embodiment of the present application, a folding bed is provided, comprising: a plurality of mounting sleeves 10, a handrail assembly is arranged between adjacent mounting sleeves 10, the handrail assembly comprises:

[0086] an articulated connecting piece 20;

[0087] adjustable surrounding rods 30, two of which are arranged on both sides of the articulated connecting piece 20, one end of each of the two adjustable surrounding rods 30 close to each other is rotationally connected with the articulated connecting piece 20, and the other end of each of the two adjustable surrounding rods 30 away from each other is rotationally connected with the mounting sleeve 10;

[0088] lower surrounding rods 40, two of which are arranged side by side below one adjustable surrounding rod 30, one end of each of the two lower surrounding rods 40 close to each other is rotationally connected with the articulated connecting piece 20, and the other end of each of the two lower surrounding rods 40 away from each other is rotationally connected with the mounting sleeve 10;

[0089] Specifically, each mounting sleeve 10 is connected with a support base 70 through a vertical rod 60, and a plurality of support bases 70 are connected by a connecting rod group 80 and provided with an unlocking base 90;

[0090] Referring to Figure 8 , when folding the bed frame, the unlocking base 90 is held by hand and lifted upward, and the plurality of support bases 70 are simultaneously close to the unlocking base 90, at this time, the four vertical rods 60 are all pulled inward; when the vertical rod 60 is inwardly retracted, the upper part 51 of the vertical rod 60 will extrude the adjustable surrounding rod 30 through the mounting sleeve 10 to make it rotate downward and fold, and the articulated connecting piece 20 gradually falls under the inward retraction of the vertical rod 60, and the connecting end of the lower surrounding rod 40 relative to the articulated connecting piece 20 rotates and folds as the articulated connecting piece 20 gradually falls;

[0091] When the unlocking base 90 is lifted to the highest position, the articulated connecting piece 20 and the lower surrounding rod 40 are lowered to the lowest position, and the entire bed body is also folded and retracted.

[0092] The embodiment can adjust the interlocking state of the rod body 110 of the adjustable surrounding rod 30 and the mounting sleeve 10 stably. When the interlocking between the locking pin 140 and the mounting sleeve 10 is released, the locking between the sleeve 120 at the adjustable end of the rod body 110 and the mounting sleeve 10 is also released, at this time, the sleeve 120 can be operated to slide up and down along the sliding groove 11, the sliding groove 11 can extend downward to the side of the vertical rod 60, so that the height of the rod body 110 can be freely adjusted in a larger height range (up to the mounting sleeve 10 and down to the bottom end of the vertical rod 60), thus more scene and multi-demand use requirements can be met, and market promotion is facilitated. The locking grooves 12 can be arranged in multiple numbers from the mounting sleeve 10 to the vertical rod 60 up and down, so that the locking pin 140 can be inserted into different locking grooves 12 at different heights, and the rod body 110 can be locked at different heights after adjustment.

[0093] Moreover, while adjusting the height of the adjustable surrounding rod 30, the rod body 110 can also be rotated relative to the sleeve 120, the guide sliding groove 141 provides guidance, and the connecting guide block 131 of the pull pin 130 can slide along the guide sliding groove 141 on the surface of the locking pin 140 without collision or motion interference with the locking pin 140, so that the rod body 110 can be freely rotated in the interlocking or height adjustment state, and the bed body can be folded and stored flexibly at any time.

[0094] Reference Figure 1 In some embodiments, the joint connecting piece 20 is symmetrically provided with two first sliding grooves 21 close to the upper part 51, and the distance between the two first sliding grooves 21 gradually increases from top to bottom;

[0095] The rod body of one end of the two adjustable surrounding rods 30 close to each other is provided with a first guide pin 31, and the first guide pin 31 is embedded and can slide along the first sliding groove 21;

[0096] When the folding bed is unfolded, the first guide pin 31 is placed at the top of the first sliding groove 21;

[0097] When the folding bed is folded, the first guide pin 31 slides to the bottom of the first sliding groove 21.

[0098] Reference Figure 8 And Figure 10, when folding the bed frame, holding the unlocking base 90 with hand and lifting upward, the plurality of support seats 70 are simultaneously close to the unlocking base 90, at this time, the lower part 52 of the four vertical rods 60 are pulled inward, the upper part 51 of the vertical rod 60 is expanded outward, the adjustable surrounding rod 30 is pulled outward by the installation sleeve 10, the first guide pin 31 is gradually moved outward and downward along the first sliding groove 21, so that the adjustable surrounding rod 30 starts to fold, and the joint connecting piece 20 gradually falls down under the inward retraction of the vertical rod 60, the connecting end of the lower surrounding rod 40 relative to the joint connecting piece 20 rotates and folds along with the gradual falling of the joint connecting piece 20;

[0099] When the unlocking base 90 is lifted to the highest position, the first guide pin 31 slides to the bottom of the first sliding groove 21, the joint connecting piece 20 and the lower surrounding rod 40 are lowered to the lowest position, and the entire bed body is also folded and contracted.

[0100] The connection position of the adjustable surrounding rod 30 and the joint connecting piece 20 in the embodiment is a sliding connection, so that the adjustable surrounding rod 30 of the folding bed has sufficient movement gap from unfolding to folding deformation, so that flexible deformation can be realized. Because the bed body is easy to deform, it does not need to consume a lot of effort to compress the bed body, and the breakage of the rod caused by a large force or the wear of the connected parts can also be avoided.

[0101] Reference Figure 10 In some embodiments, the joint connecting piece 20 is provided with a second sliding groove 22 on one side opposite to the first sliding groove 21, and the rod body of the adjustable surrounding rod 30 is provided with a second guide pin 32, the second guide pin 32 is slidingly embedded in the second sliding groove 22.

[0102] When the armrest structure is unfolded, the second guide pin 32 is placed at one end of the second sliding groove 22 close to the first sliding groove 21; when the armrest structure is folded, the second guide pin 32 slides away from the end of the first sliding groove 21.

[0103] When folding, the installation sleeve 10 pulls the adjustable surrounding rod 30 to move outward, the first guide pin 31 is gradually moved outward and downward along the first sliding groove 21 when the adjustable surrounding rod 30 moves outward, and the second guide pin 32 slides outward along the second sliding groove 22. The second guide pin 32 and the second sliding groove 22 matched in the embodiment make the action of the adjustable surrounding rod 30 more stable when folding, and thus the folding process of the bed body is also more stable.

[0104] Reference Figure 1 and Figure 8In some embodiments, each mounting sleeve 10 is connected with a support base 70 through a vertical rod 60, and each support base 70 is hinged to an unlocking base 90 arranged in the middle of the lower part 52 of the bed body through a connecting rod set 80;

[0105] The unlocking base 90 comprises an upper unlocking base 91 and a lower unlocking base 92 which are inserted in each other, and the connecting rod set 80 comprises a first connecting rod 81 and a second connecting rod 82 which are hinged.

[0106] The outer end of the first connecting rod 81 is hinged to the support base 70, and the inner end of the first connecting rod 81 is hinged to the upper unlocking base 91; one end of the second connecting rod 82 is hinged to the lower unlocking base 92, and the other end is hinged to the rod body of the first connecting rod 81.

[0107] When folding the bed frame, the upper unlocking base 91 is held by hand and lifted upward, so that the upper unlocking base 91 is separated from the lower unlocking base 92 and moves upward at the same time; when the upper unlocking base 91 and the lower unlocking base 92 move upward, the inner end of the first connecting rod 81 and the second connecting rod 82 will swing upward at the same time, at this time, the outer end of each first connecting rod 81 pulls one support base 70 to approach the unlocking base 90, at this time, the support base 70 of the four corners will drive the lower part 52 of the four vertical rods 60 to the inside, and the folding action is started.

[0108] The upper unlocking base 91 and the lower unlocking base 92 of the embodiment are inserted and locked and separated, which is simple in structure; when operating, the upper unlocking base 91 is lifted upward by hand to realize unlocking, the first connecting rod 81 and the second connecting rod 82 are hinged and connected respectively with the upper unlocking base 91 and the lower unlocking base 92, which is convenient for linkage and realization of flexible unfolding and folding of the bed body.

[0109] In the above description, although expressions such as "first" and "second" can 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.

[0110] The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular expression includes the plural expression, unless there is a significant difference in context or scheme.

[0111] The above description is only exemplary embodiments of the present application, and is not intended to limit the protection scope of the present application, which is determined by the attached claims.

[0112] Those skilled in the art can understand that the technical features of the above-mentioned embodiments can be omitted, added or combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, and the simple transformation manner and the adaptive and functional structural transformation scheme of the prior art can be conceived by those skilled in the art, it should be considered that it is within the scope of the present disclosure.

[0113] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that although the present application has been shown and described with reference to various embodiments, those skilled in the art can make various changes and improvements in form and details without departing from the concept of the present application, and these changes and improvements shall fall within the scope of the present application defined by the appended claims. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims

1. An adjustable fence, comprising: a pole body, an adjustable end of which is close to a mounting sleeve, and the pole body is rotationally connected with a sliding sleeve; the sliding sleeve is configured to be slidably mounted on the slide groove of the side of the mounting sleeve; a pull pin is inserted into the adjustable end of the pole body along the length direction of the pole body, and one end of the pull pin towards the mounting sleeve is provided with a connecting guide block; a lock pin is provided on the one end of the pull pin towards the mounting sleeve, and the lock pin is inserted into the lock slot of the mounting sleeve to interlock with the mounting sleeve; the surface of the lock pin is provided with a guide slide way which is matched and clamped together with the connecting guide block, and the extension track of the guide slide way is consistent with the movement track of the connecting guide block when the pole body rotates, for providing guidance when the pole body rotates; a driving component is matched and connected with the pull pin, for driving the pull pin to move away from the mounting sleeve to drive the lock pin to be out of the lock slot of the mounting sleeve, so as to release the interlocking between the lock pin and the mounting sleeve.

2. The adjustable fence according to claim 1, wherein: the driving component comprises: an unlocking button which passes through the pole body from the outside and is embedded into the mounting groove on the surface of the pull pin, and the surface of the unlocking button is provided with an inclined driving surface which is at an angle with the embedding direction of the unlocking button; the mounting groove is arranged along the length direction of the pull pin, and the groove wall away from the connecting guide block is an inclined driving groove wall; the inclined driving surface on the surface of the unlocking button is matched with the inclined driving groove wall; the unlocking button is configured to be moved along the direction of being inserted into the mounting groove, so that the inclined driving surface is relatively slid with the inclined driving groove wall to drive the pull pin to move away from the mounting sleeve, so as to drive the lock pin to be out of the lock slot of the mounting sleeve to release the interlocking between the lock pin and the mounting sleeve.

3. The adjustable fence according to claim 2, further comprising a first spring which is arranged in the mounting groove, and the two ends of the first spring are respectively abutted against the stop pin arranged in the pole body and the groove wall of the mounting groove close to the connecting guide block, and the stop pin is arranged between the first spring and the unlocking button; the first spring is used to accumulate elastic potential energy when the unlocking button drives the pull pin to move away from the mounting sleeve, and release the elastic potential energy and restore the initial length to drive the pull pin to reversely move to the initial interlocking position when the unlocking button is released.

4. The adjustable fence according to claim 2, wherein: one end of the pull pin towards the mounting sleeve is provided with a connecting body which protrudes from the circumferential wall surface of the pole body, and the connecting guide block is arranged on the connecting body; the surface of the lock pin is provided with a guide slide groove in which the guide slide way is formed, and the connecting guide block is embedded in the guide slide groove, and the connecting guide block can move along the extension track of the guide slide way when the pole body rotates.

5. The adjustable fence according to claim 4, wherein: the groove wall of the guide slide groove and the side surface of the connecting body adjacent to each other are matched in shape and are both arc surfaces, and the extension direction of the arc surfaces is consistent with the movement track of the connecting guide block when the pole body rotates, for providing guidance when the pole body rotates. ​ ​ 6. The adjustable rail according to claim 1, wherein the end of the pull pin towards the mounting sleeve is provided with a guide slot extending along the length direction of the pull pin; the rotating connecting pin for connecting the rail body and the sliding sleeve is inserted into the guide slot, and the diameter of the rotating connecting pin is consistent with the width dimension of the guide slot, so as to provide a guide for the movement of the pull pin.

7. The adjustable rail according to claim 1, further comprising a guide bracket provided in the sliding sleeve, and a guide hole is provided in the guide bracket for the lock pin to pass through.

8. A folding bed, comprising: a plurality of mounting sleeves, and a handrail assembly provided between adjacent mounting sleeves, the handrail assembly comprising: a joint connecting piece; and two adjustable rails according to any one of claims 1-7 provided on both sides of the joint connecting piece, and the two adjustable rails are rotatably connected to the joint connecting piece at the end close to each other, and the adjustable ends of the two adjustable rails are rotatably connected to the mounting sleeves; and two lower rails provided below one adjustable rail respectively and side by side, and the two lower rails are rotatably connected to the joint connecting piece at the end close to each other, and the ends away from each other are rotatably connected to the mounting sleeves.

9. The folding bed according to claim 8, wherein the joint connecting piece is provided with two first sliding grooves on both sides close to the upper part, and the distance between the two first sliding grooves gradually increases from top to bottom; the rail body of the end close to each other of the two adjustable rails is provided with a first guide pin, and the first guide pin is embedded and can slide along the first sliding groove; when the folding bed is unfolded, the first guide pin is placed at the top of the first sliding groove; when the folding bed is folded, the first guide pin slides to the bottom of the first sliding groove.

10. The folding bed according to claim 9, wherein the joint connecting piece is provided with a second sliding groove on the side away from the first sliding groove respectively, and the rail body of the adjustable rail is provided with a second guide pin, and the second guide pin is slidably embedded in the second sliding groove; when the handrail structure is unfolded, the second guide pin is placed at the end of the second sliding groove close to the first sliding groove; when the handrail structure is folded, the second guide pin slides to the end away from the first sliding groove. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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