Folding fence connecting structure and folding fence

Abstract

The utility model discloses a folding fence connecting structure and a folding fence, and relates to the technical field of fences, and the folding fence connecting structure comprises a first vertical rod, a second vertical rod, a third vertical rod and a fourth vertical rod, the second connecting piece is positioned below the first connecting piece; the first connecting rod mechanism is provided with a first connecting rod and a second connecting rod which are connected in a crossed manner, the first connecting rod is pivotally connected with the first connecting piece, and the second connecting rod is pivotally connected with the second connecting piece; the second connecting rod is provided with two sections which are connected in a pivoted mode, the first section is connected with the first connecting rod in a crossed mode, and the second section is connected with the second connecting piece in a pivoted mode. According to the connecting structure for folding the fence, when the fence needs to be folded, related parts are pushed or pulled, the first connecting rod and the second connecting rod rotate around the pivot points of the first connecting rod and the second connecting rod, the first section and the second section of the second connecting rod also rotate around the pivot points of the second connecting rod, and therefore the shape of the first connecting rod mechanism can be flexibly changed; and then the fence component connected with the first vertical rod is driven to be close to the first vertical rod, and folding is achieved.

Description

Technical Field

[0001] This utility model relates to the field of fence technology, specifically to a folding fence connection structure and a folding fence. Background Technology

[0002] Collapsible fencing is primarily used for the isolation, protection, or demarcation of areas. Like child safety fences, it can be folded up when not in use, reducing its size and effectively saving space.

[0003] For example, Chinese patent document CN211582370U discloses a game fence. This fence uses multiple vertical bars and linkage mechanisms between adjacent vertical bars to enclose a game space. Specifically, sliding parts are installed on the vertical bars, and these sliding parts are connected to the linkage mechanisms. When the fence needs to be closed, the vertical bars move closer together, and the sliding parts on the vertical bars move downwards along the vertical bars, causing the linkage mechanisms to fold up accordingly.

[0004] In the above solution, to ensure sufficient stability when the fence is deployed, a locking mechanism is installed on each vertical bar to lock the sliding parts and prevent them from sliding down the vertical bar. However, with this solution, each locking mechanism needs to be unlocked when the fence is retracted, which is rather cumbersome. Utility Model Content

[0005] In view of this, the present invention provides a retractable fence connection structure and a retractable fence to solve the problem that each locking mechanism needs to be operated to unlock when retracting the fence, which makes the retraction operation inconvenient.

[0006] In a first aspect, this utility model provides a folding fence connection structure, comprising:

[0007] A first vertical rod, the top of which has a first connector;

[0008] The second connector is fixedly connected to the first vertical rod, and the second connector is located below the first connector;

[0009] A first linkage mechanism has a first link and a second link that are cross-connected. The first link is pivotally connected to the first connector, and the second link is pivotally connected to the second connector. The second link has two pivotally connected segments, wherein the first segment is cross-connected to the first link, and the second segment is pivotally connected to the second connector.

[0010] In this utility model, when the fence needs to be retracted, the relevant components are pushed or pulled, causing the first and second connecting rods to rotate around their pivot points. The first and second segments of the second connecting rod also rotate around their pivot points, allowing the first connecting rod mechanism to flexibly change its shape, thereby driving the fence components connected to it to move closer to the first vertical rod, thus achieving retraction.

[0011] Since the second connector is fixedly connected to the first vertical bar, there is no need to set a locking mechanism for the second connector. When closing the fence, there is no need for staff to unlock the first vertical bar, which simplifies the operation process and improves the convenience of operation.

[0012] Optionally, the first linkage mechanism has two sets, and the two sets of the first linkage mechanism are arranged at an angle to each other. This arrangement allows the first vertical bar to be positioned in the middle of the fence and ensures that the fence can be closed smoothly.

[0013] Optionally, the second connector is detachably connected to the first vertical post, and the second connector has at least two fixed positions on the first vertical post. This configuration allows for flexible adjustment of the fence height, enabling the fence to meet various layout requirements.

[0014] Optionally, the first linkage mechanism has multiple scissor units pivotally connected end-to-end. This arrangement provides excellent scalability of the fence in the length direction. Each scissor unit is connected by pivoting, and the number of scissor units can be easily increased when the fence length needs to be extended.

[0015] Secondly, this utility model also provides a folding fence, comprising:

[0016] The first vertical pole consists of a first vertical pole, a second vertical pole, and a third vertical pole. The top of the first vertical pole is fixedly connected to a first connector, and a second connector is also fixedly connected to the first vertical pole. The second connector is located below the first connector.

[0017] A first linkage mechanism has a first link and a second link that are cross-connected. The first link is pivotally connected to a first connector, and the second link is pivotally connected to a second connector. The second link has two pivotally connected segments, wherein the first segment is cross-connected to the first link, and the second segment is pivotally connected to the second connector. The first linkage mechanism has two sets, one end of each set of the first linkage mechanism is connected to a first vertical rod, and the two sets of the first linkage mechanism are set at an angle. The other end of the first set of the first linkage mechanism is connected to the second vertical rod, and the other end of the second set of the first linkage mechanism is connected to the third vertical rod.

[0018] A second linkage mechanism is connected between the second vertical rod and the third vertical rod, and the second vertical rod and the third vertical rod are respectively provided with sliding members for connecting with the first linkage mechanism and the second linkage mechanism;

[0019] A locking mechanism, connected to the second vertical rod and / or the third vertical rod, is used to lock the sliding member.

[0020] This utility model's technical solution, through the cooperation of a first vertical rod, a second vertical rod, a third vertical rod, a first linkage mechanism, and a second linkage mechanism, forms a fence structure when unfolded. When retracting, since there is no locking mechanism on the first vertical rod, the operator only needs to operate the locking mechanism on the second and / or third vertical rods to unlock the sliding parts, thus retracting the fence, making operation more convenient.

[0021] Optionally, it also includes a fourth vertical bar, which is disposed between the second and third vertical bars. The second, fourth, and third vertical bars are sequentially connected by the second linkage mechanism. The locking mechanism is provided on adjacent pairs of the second, fourth, and third vertical bars. In the above scheme, the addition of the fourth vertical bar allows the fence to form more diverse enclosure shapes. Besides the original simple basic shape composed of three vertical bars and a linkage mechanism, it is now possible to form quadrilaterals or more complex polygons by adjusting the angle of the second linkage mechanism and the position of the vertical bars, according to the actual site requirements. With this configuration, in irregularly shaped sites, the fence can better conform to the site outline, achieving more flexible and reasonable space division and meeting the requirements for fence layout in different scenarios.

[0022] Optionally, the second linkage mechanism has multiple scissor units that are pivotally connected end-to-end in sequence. This arrangement provides excellent scalability of the fence in the length direction.

[0023] Optionally, the locking mechanism includes a locking hole and a locking pin. The locking hole is disposed on the vertical rod, and the locking pin passes through the sliding member and is detachably connected to the locking hole. In the above solution, the cooperation between the locking pin and the locking hole provides a reliable positioning effect. Once the locking pin is inserted into the locking hole, the sliding member is difficult to move freely on the vertical rod, ensuring the stability of the fence during use. Even if the fence is subjected to certain external forces, such as slight collisions by personnel or wind, the locking mechanism can maintain the relative position between the vertical rods, effectively preventing fence deformation and ensuring its normal function.

[0024] Optionally, the sliding member cooperating with the locking mechanism has an upwardly extending locking portion, and the locking portion has a through hole for the locking pin to pass through. In the above solution, the upwardly extending locking portion on the sliding member and the through hole therefor the locking pin provide a more secure connection for the locking mechanism. The locking pin passes through the through hole of the locking portion and cooperates with the locking hole on the vertical rod. Compared to directly setting a through hole on the sliding member body, this structure increases the effective connection length of the locking pin, making the lock more secure.

[0025] Optionally, the top of the locking part has an operating section extending away from the vertical rod. This design provides an easy-to-grip part for the operator. When locking or unlocking, the operator can easily insert or remove the locking pin into the locking hole by simply gripping the operating section. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a perspective view of the unfolded state of a retractable fence connection structure according to an embodiment of the present utility model;

[0028] Figure 2 for Figure 1 A three-dimensional view of the retractable fence connection structure in its retracted state;

[0029] Figure 3 This is a perspective view of the unfolded state of another retractable fence connection structure according to an embodiment of the present utility model;

[0030] Figure 4 for Figure 3 A three-dimensional view of the retractable fence connection structure in its retracted state;

[0031] Figure 5 This is a perspective view of a retractable fence in its unfolded state according to an embodiment of the present utility model.

[0032] Figure 6 for Figure 5 Enlarged view of region A in the middle;

[0033] Figure 7 for Figure 6 A reverse side diagram;

[0034] Figure 8 for Figure 5A 3D view of the retractable fence in its retracted state;

[0035] Figure 9 for Figure 5 A perspective view of the sliding part of the vertical rod without a locking mechanism;

[0036] Figure 10 for Figure 5 A perspective view of the sliding part of the vertical rod with a locking mechanism.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. First vertical rod; 2. First connecting member; 3. Second connecting member; 4. First linkage mechanism; 5. First link; 6. Second link; 7. First section; 8. Second section; 9. Second vertical rod; 10. Third vertical rod; 11. Second linkage mechanism; 12. Sliding member; 13. Fourth vertical rod; 14. Locking pin; 15. Locking part; 16. Operating part. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] like Figure 1 As shown, this embodiment provides a specific implementation of the folding fence connection structure, including: a first vertical rod 1, a first connecting member 2, and a first linkage mechanism 4. The first vertical rod 1 has the first connecting member 2 at its top; the second connecting member 3 is fixedly connected to the first vertical rod 1, and is located below the first connecting member 2. Specifically, the second connecting member 3 and the first vertical rod 1 can be fixedly connected by fasteners, or they can be fixedly connected by welding or integral molding.

[0044] like Figure 1 As shown, the first linkage mechanism 4 has a first link 5 and a second link 6 that are cross-connected. The first link 5 is pivotally connected to the first connecting member 2, and the second link 6 is pivotally connected to the second connecting member 3. It should be noted that the pivotal connection refers to a connection that allows the two connected components to rotate relative to each other around a central point or axis. Specifically, in this embodiment, the first link 5 and the first connecting member 2 can be rotatably connected by a pivot, and the second link 6 and the second connecting member 3 can also be rotatably connected by a pivot.

[0045] like Figure 1 As shown, the second link 6 has two pivotally connected segments, wherein the first segment 7 is cross-connected to the first link 5, and the second segment 8 is pivotally connected to the second connector 3. That is, after the first segment 7 of the second link 6 cross-connects to the first link 5, it has an extension extending towards the second segment 8, which is pivotally connected to the second segment 8. The cross-connection refers to a cross-pivot connection. Specifically, the first link 5 and the second link 6 can be rotatably connected via a pivot, and the first segment 7 and the second segment 8 of the second link 6 can be rotatably connected via a pivot.

[0046] like Figure 2 As shown, using the folding fence connection structure of this embodiment, when the fence needs to be folded, push or pull the relevant components to make the first link 5 and the second link 6 rotate around their pivot point. The first segment 7 and the second segment 8 of the second link 6 also rotate around their pivot point, so that the first link mechanism 4 can flexibly change its shape, thereby driving the fence component connected to it to move closer to the first vertical bar 1 to achieve folding.

[0047] Since the second connector 3 is fixedly connected to the first vertical rod 1, there is no need to set a locking mechanism for the second connector 3. When closing the fence, there is no need for staff to unlock the first vertical rod 1, which simplifies the operation process and improves the convenience of operation.

[0048] like Figure 1 As shown, in some embodiments, the first linkage mechanism 4 has two sets, and the two sets of the first linkage mechanism 4 are arranged at an angle. Specifically, the two sets of the first linkage mechanism 4 can be arranged at a 90-degree angle, and the extension ends of the two sets of the first linkage mechanism 4 can be connected to different vertical rods respectively. This arrangement allows the first vertical rod 1 to be positioned in the middle of the fence and ensures that the fence can be easily closed.

[0049] like Figure 1 As shown, in some embodiments, the second connector 3 is detachably connected to the first vertical rod 1, and the second connector 3 has at least two fixed positions on the first vertical rod 1. Specifically, the second connector 3 can be detachably connected to the first vertical rod 1 via fasteners, and the first vertical rod 1 can be provided with multiple holes along the height direction for the fasteners to pass through. This arrangement allows the height of the fence to be flexibly adjusted, enabling the fence to meet various layout requirements.

[0050] like Figure 3 , Figure 4 As shown, in some embodiments, the first linkage mechanism 4 has multiple scissor units pivotally connected end-to-end in sequence. It should be noted that a scissor unit is a common mechanical structural unit. A scissor unit is generally composed of two rods connected by a hinge point, forming a scissor-like shape. These rods generally have a certain length and rigidity, capable of withstanding certain forces and torques. When an external force is applied to the scissor unit, the relative rotation between the rods at the hinge point causes a change in the overall length of the scissor unit, thereby achieving a telescopic function. For example, under tensile force, the scissor unit can extend and become longer; under compressive force, the scissor unit can contract and become shorter. In this embodiment, the first linkage mechanism 4 is composed of two scissor units pivotally connected end-to-end. This arrangement gives the fence excellent scalability in the length direction. Each scissor unit is connected by a pivot, and when the fence length needs to be extended, the number of scissor units can be easily increased.

[0051] like Figure 5 As shown, on the other hand, embodiments of the present invention also provide a retractable fence, including: a first vertical bar 1, a second vertical bar 9, a third vertical bar 10 and a fourth vertical bar 13, as well as a first linkage mechanism 4 and a second linkage mechanism 11.

[0052] like Figure 1As shown, a first connector 2 is fixedly connected to the top of the first vertical rod 1, and a second connector 3 is also fixedly connected to the first vertical rod 1, with the second connector 3 located below the first connector 2; the first linkage mechanism 4 has a first link 5 and a second link 6 that are cross-connected, the first link 5 being pivotally connected to the first connector 2, and the second link 6 being pivotally connected to the second connector 3; the second link 6 has two pivotally connected segments, wherein the first segment 7 is cross-connected to the first link 5, and the second segment 8 is pivotally connected to the second connector 3.

[0053] like Figure 5 As shown, in this embodiment, the first linkage mechanism 4 has two sets. One end of each set of the first linkage mechanism 4 is connected to the first vertical rod 1, and the two sets of the first linkage mechanism 4 are set at a 90° angle. The other end of the first set of the first linkage mechanism 4 is connected to the second vertical rod 9, and the other end of the second set of the first linkage mechanism 4 is connected to the third vertical rod 10. That is, the first vertical rod 1 is connected to the second vertical rod 9 and the third vertical rod 10 respectively through the first linkage mechanism 4. Of course, the above description is not limiting. In some alternative embodiments, the angle between the two sets of the first linkage mechanism 4 varies depending on the number of vertical rods. For example, when three vertical rods are used, the angle between the two sets of the first linkage mechanism 4 can be 60°; when six vertical rods are used, the angle between the two sets of the first linkage mechanism 4 can be 120°, etc.

[0054] like Figure 5 As shown, the second vertical rod 9 and the third vertical rod 10, as well as the third vertical rod 10 and the fourth vertical rod 13, are respectively connected by the second linkage mechanism 11. The second vertical rod 9 and the fourth vertical rod 13 are respectively provided with sliding members 12 for connecting with the first linkage mechanism 4 and the second linkage mechanism 11, and the third vertical rod 10 is provided with a sliding member 12 for connecting with the second linkage mechanism 11.

[0055] like Figure 5 As shown, the third vertical rod 10 and the fourth vertical rod 13 are provided with locking mechanisms, which are used to lock the sliding member 12. The second vertical rod 9 has a sliding member 12, but may not have the locking mechanism. The first vertical rod 1 does not have a sliding member 12, so it does not need the locking mechanism.

[0056] This utility model's technical solution, through the cooperation of the first vertical rod 1, the second vertical rod 9, the third vertical rod 10, the fourth vertical rod 13, the first linkage mechanism 4, and the second linkage mechanism 11, forms a fence structure when unfolded. When retracting, since there are no locking mechanisms on the first vertical rod 1 and the second vertical rod 9, the operator only needs to operate the locking mechanisms on the third vertical rod 10 and the fourth vertical rod 13 to unlock the sliding parts 12, thus retracting the fence, making the operation more convenient.

[0057] It should be noted that in this embodiment, the addition of the fourth vertical rod 13 allows the fence to form more diverse enclosure shapes. Besides the original simple basic shape composed of three vertical rods and a linkage mechanism, it can now be configured into quadrilaterals or more complex polygons by adjusting the angle of the second linkage mechanism 11 and the position of the vertical rods, according to the actual site requirements. This configuration allows the fence to better conform to the site's contours in irregularly shaped areas, achieving more flexible and reasonable space division and meeting the fence layout requirements in different scenarios.

[0058] Of course, the above description is not limiting. In some alternative embodiments, the fourth vertical bar 13 can be omitted, and the fence can be formed solely by the first vertical bar 1, the second vertical bar 9, and the third vertical bar 10, as well as the first linkage mechanism 4 and the second linkage mechanism 11. Specifically, the first linkage mechanism 4 is provided between the first vertical bar 1 and the second vertical bar 9, the second linkage mechanism 11 is provided between the second vertical bar 9 and the third vertical bar 10, and the first linkage mechanism 4 is provided between the third vertical bar 10 and the first vertical bar 1.

[0059] The second vertical rod 9 and the third vertical rod 10 are respectively provided with sliding members 12 for connecting the first linkage mechanism 4 and the second linkage mechanism 11. The second vertical rod 9 and / or the third vertical rod 10 are provided with locking mechanisms for locking the sliding members 12. That is, in this embodiment, the locking mechanism can be provided only on the second vertical rod 9, only on the third vertical rod 10, or on both the second vertical rod 9 and the third vertical rod 10.

[0060] When closing the fence, firstly, the locking mechanism should be released from the sliding member 12. Then, the first vertical bar 1, the second vertical bar 9, and the third vertical bar 10 should be pulled closer together. As they approach each other, the sliding member 12 on the second vertical bar 9 and the third vertical bar 10 will slide down along the vertical bar, thereby driving the first linkage mechanism 4 and the second linkage mechanism 11 to fold, and finally completing the fence closing operation.

[0061] like Figure 5 As shown, in this embodiment, the second linkage mechanism 11 has multiple scissor units that are pivotally connected end-to-end in sequence. This arrangement gives the fence excellent scalability in the length direction.

[0062] like Figure 6 , Figure 7 As shown, in this embodiment, the first connector 2 and the second connector 3 are detachably fixedly connected to the first vertical rod 1 by fasteners. Alternatively, in some alternative embodiments, the first connector 2 and / or the second connector 3 can be fixedly connected to the first vertical rod 1 in other ways, such as by welding or snap-fitting.

[0063] like Figure 8 As shown, in this embodiment, the folding fence, after being folded, retains the position of the first connecting member 2 on the first vertical bar 1, while the sliding members 12 on the other vertical bars slide downwards to the bottom of the vertical bars. After all the vertical bars come together, the first linkage mechanism 4 and the second linkage mechanism 11 fold, thereby completing the folding of the fence.

[0064] like Figure 5 , Figure 9 As shown, in this embodiment, the slider 12 on the second vertical rod 9 is slidably connected to the second vertical rod 9, and there is no locking mechanism between the second vertical rod 9 and the slider 12. That is to say, during use, the slider 12 can slide freely on the second vertical rod 9, and when closing, the slider 12 does not need to be unlocked.

[0065] like Figure 5 , Figure 10 As shown, in this embodiment, locking mechanisms for locking the sliding member 12 are only provided on the third vertical rod 10 and the fourth vertical rod 13. The locking mechanism includes a locking hole and a locking pin 14. The locking hole is located on the vertical rod, and the locking pin 14 passes through the sliding member 12 and is detachably connected to the locking hole. In the above scheme, the cooperation between the locking pin 14 and the locking hole provides a reliable positioning effect. Once the locking pin 14 is inserted into the locking hole, the sliding member 12 is difficult to move freely on the vertical rod, ensuring the stability of the fence during use. Even if the fence is subjected to certain external forces, such as slight collisions by personnel or wind, the locking mechanism can maintain the relative position between the vertical rods, effectively preventing fence deformation and ensuring its normal function. Of course, the above description is not limiting. In some alternative embodiments, the locking pin 14 can also be inserted below the sliding member 12 and have a protrusion, which supports the sliding member 12 to prevent it from sliding downwards, thereby locking it.

[0066] like Figure 10As shown, in this embodiment, the sliding member 12, which cooperates with the locking mechanism, has an upwardly extending locking portion 15, and the locking portion 15 has a through hole for the locking pin 14 to pass through. In the above solution, the upwardly extending locking portion 15 on the sliding member 12 and the through hole therefor the locking pin 14 provide a more stable connection for the locking mechanism. The locking pin 14, passing through the through hole of the locking portion 15, cooperates with the locking hole on the vertical rod. Compared with directly setting a through hole on the body of the sliding member 12, this structure increases the effective connection length of the locking pin 14, making the lock more secure. Of course, the above description is not limiting. In some alternative embodiments, the locking portion 15 on the sliding member 12 can be omitted. For example, a hole can be directly made in the body of the sliding member 12 to provide the through hole.

[0067] like Figure 10 As shown, in this embodiment, the top of the locking part 15 has an operating part 16 extending in a direction away from the vertical rod. This arrangement provides an easy-to-grip part for the operator. When performing locking or unlocking operations, the operator can easily insert or remove the locking pin 14 into the locking hole by simply holding the operating part 16.

[0068] Of course, the above description is not limiting. In some alternative embodiments, the operating part 16 of the slider 12 may be omitted.

[0069] When the fence is deployed:

[0070] Pulling the first vertical rod 1, the second vertical rod 9, the third vertical rod 10, and the fourth vertical rod 13 in mutually distancing directions causes the first linkage mechanism 4 and the second linkage mechanism 11 to unfold. As the vertical rods move, the sliding member 12 slides upwards on the vertical rods.

[0071] Adjust the vertical posts to the appropriate positions so that the fence forms the desired shape, such as a quadrilateral or a polygon.

[0072] Insert the locking pin 14 into the through hole of the locking part 15 of the sliding member 12 of the third vertical rod 10 and the fourth vertical rod 13, and screw it into the locking hole on the vertical rod to lock the sliding member 12 and fix the shape of the fence.

[0073] When closing the fence:

[0074] Operate the locking mechanism on the third vertical rod 10 and the fourth vertical rod 13, pull out the locking pin 14, and unlock the sliding member 12.

[0075] Push the first vertical rod 1, the second vertical rod 9, the third vertical rod 10, and the fourth vertical rod 13 toward each other, causing them to move closer together. As the vertical rods move closer, the sliders 12 on the second vertical rod 9, the third vertical rod 10, and the fourth vertical rod 13 slide downwards along the vertical rods, causing the first linkage mechanism 4 and the second linkage mechanism 11 to fold.

[0076] When all the vertical bars are brought together, the first linkage mechanism 4 and the second linkage mechanism 11 are fully folded, completing the fence closure. At this time, the first connector 2 remains in the same position on the first vertical bar 1, while the sliding parts 12 on the other vertical bars slide downwards to the bottom of the vertical bar.

[0077] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the present invention.

Claims

1. A foldable fence connection structure, characterized by include: A first vertical rod (1) has a first connector (2) at its top; The second connector (3) is fixedly connected to the first vertical rod (1), and the second connector (3) is located below the first connector (2); The first linkage mechanism (4) has a first link (5) and a second link (6) that are cross-connected. The first link (5) is pivotally connected to the first connector (2), and the second link (6) is pivotally connected to the second connector (3). The second link (6) has two pivotally connected segments, wherein the first segment (7) is cross-connected to the first link (5), and the second segment (8) is pivotally connected to the second connector (3).

2. The foldable fence connection structure according to claim 1, wherein The first linkage mechanism (4) has two sets, and the two sets of the first linkage mechanism (4) are set at an angle to each other.

3. The foldable fence connection structure of claim 1, wherein The second connector (3) is detachably connected to the first vertical rod (1), and the second connector (3) has at least two fixed positions on the first vertical rod (1).

4. A concertina fence connection structure according to any one of claims 1 to 3, wherein, The first linkage mechanism (4) has multiple scissor units that are pivotally connected end to end in sequence.

5. A foldable fence, characterized in that include: The first vertical rod (1), the second vertical rod (9) and the third vertical rod (10) are connected to the top of the first vertical rod (1) by a first connector (2) and a second connector (3) is also connected to the first vertical rod (1) by a second connector (3) located below the first connector (2). The first linkage mechanism (4) has a first link (5) and a second link (6) that are cross-connected. The first link (5) is pivotally connected to the first connector (2), and the second link (6) is pivotally connected to the second connector (3). The second link (6) has two pivotally connected segments, wherein the first segment (7) is cross-connected to the first link (5), and the second segment (8) is pivotally connected to the second connector (3). The first linkage mechanism (4) has two sets, one end of each set of the first linkage mechanism (4) is connected to the first vertical rod (1), and the two sets of the first linkage mechanism (4) are set at an angle. The other end of the first set of the first linkage mechanism (4) is connected to the second vertical rod (9), and the other end of the second set of the first linkage mechanism (4) is connected to the third vertical rod (10). The second linkage mechanism (11) is connected between the second vertical rod (9) and the third vertical rod (10). The second vertical rod (9) and the third vertical rod (10) are respectively provided with sliding members (12) for connecting with the first linkage mechanism (4) and the second linkage mechanism (11). A locking mechanism, connected to the second vertical rod (9) and / or the third vertical rod (10), is used to lock the slider (12).

6. The retractable fence according to claim 5, characterized in that, Also includes: The fourth vertical rod (13) is disposed between the second vertical rod (9) and the third vertical rod (10). The second vertical rod (9), the fourth vertical rod (13) and the third vertical rod (10) are connected in sequence by the second linkage mechanism (11). The locking mechanism is provided on two adjacent vertical rods of the second vertical rod (9), the fourth vertical rod (13) and the third vertical rod (10).

7. The retractable fence according to claim 5, characterized in that, The second linkage mechanism (11) has multiple scissor units that are pivotally connected end to end in sequence.

8. The retractable fence according to any one of claims 5-7, characterized in that, The locking mechanism includes a locking hole and a locking pin (14), the locking hole being disposed on the vertical rod, and the locking pin (14) being detachably connected to the locking hole after passing through the sliding member (12).

9. The folding fence according to claim 8, characterized in that, The sliding member (12) that cooperates with the locking mechanism has an upwardly extending locking portion (15), and the locking portion (15) has a through hole for passing through the locking post (14).

10. The retractable fence according to claim 9, characterized in that, The top of the locking part (15) has an operating part (16) that extends in a direction away from the vertical bar.

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