Connecting device, fence side structure with connecting device and fence

Abstract

The utility model discloses a connecting device, a fence side structure with the connecting device and a fence. The end of a second pipe body is rotatably connected with the end of a first pipe body; the sleeve is arranged on the first pipe body and / or the second pipe body in a sliding and sleeving mode, and when the sleeve is arranged on the first pipe body and the second pipe body in a sleeving mode at the same time, the axis of the first pipe body coincides with the axis of the second pipe body, so that the first pipe body and the second pipe body are prevented from being bent at the joint. The first pipe body and the second pipe body are rotatably connected, so that the folding pipe can be easily folded and stored in a non-use state, the storage space is saved, and meanwhile, the overall portability is improved. By means of the arrangement, the stability and supporting force of the device in the using process are enhanced, bending or deformation of the connecting position of the two pipe bodies in the using process is avoided, and the service life of the device is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, in particular to a connecting device, a fence side structure with the connecting device, and a fence. Background Art

[0002] In the prior art, the connection devices between the tubes usually adopt various methods to achieve the rotatable connection between the tubes to meet the needs of different usage scenarios. However, these connection methods often have some limitations.

[0003] Specifically, first, the two tube bodies are connected by a simple hinge or rotary joint. Although this method can achieve the rotation of the tube body, the connection often lacks sufficient stability and supporting force, and is prone to shaking or loosening during use, affecting the safety and reliability of the guardrail. The second method is to use a fixing method such as welding or threaded connection to firmly connect the two tube bodies together. However, although this method can provide a stable connection effect, once the connection is completed, the relative position between the tube bodies is fixed and unchanged, lacking flexibility, and cannot meet the use requirements of the bed guardrail at different angles. Third, some connecting devices also use complex mechanical structures to achieve rotatable connection of the tube body, but these structures are often difficult to install, have high maintenance costs, and are prone to failure during use, affecting the user experience. Utility Model Content

[0004] In view of the above problems, the present application provides a connecting device, a fence side structure having the connecting device, and a fence to improve the connection strength between the tube bodies and facilitate the storage of the fence.

[0005] To achieve the above objectives, the present application provides a connecting device, comprising:

[0006] first tube body;

[0007] a second tube body, an end portion of the second tube body being rotatably connected to an end portion of the first tube body;

[0008] A sleeve is slidably mounted on the first tube body and / or the second tube body. When the sleeve is mounted on the first tube body and the second tube body at the same time, the axis of the first tube body coincides with the axis of the second tube body to prevent the first tube body and the second tube body from bending at the connection.

[0009] The technical solution of the embodiment of the present application further includes: a first limiting ring;

[0010] The first limiting ring is sleeved on the first tube body, and the distance from the first limiting ring to the end of the first tube body close to the second tube body is greater than or equal to the length of the sleeve.

[0011] The technical solution of the embodiment of the present application further includes: a second limiting ring;

[0012] The second limiting ring is sleeved on the second tube body, and the distance from the second limiting ring to the end of the second tube body close to the first tube body is less than the length of the sleeve.

[0013] The technical solution of the embodiment of the present application further includes: a first clamping member;

[0014] The first clamping member is placed on a side of the sleeve close to the first limiting ring, and the first clamping member is used for clamping with the first limiting ring.

[0015] The technical solution of the embodiment of the present application further includes: a second clamping member;

[0016] The second clamping member is placed on a side of the sleeve close to the second limiting ring, and the second clamping member is used for clamping with the second limiting ring.

[0017] The technical solution of the embodiment of the present application further includes: an elastic member; two ends of the elastic member are respectively connected to the first tube body and the sleeve;

[0018] Alternatively, both ends of the elastic member are connected to the second tube body and the sleeve respectively;

[0019] The elastic member is used to drive the sleeve to be sleeved on the first tube body and the second tube body at the same time.

[0020] The technical solution of the embodiment of the present application further includes: a first resisting member and a second resisting member; the first tube body is a hollow tube body, the first resisting member is fixedly disposed in the first tube body, a strip-shaped through hole is provided through the side wall of the first tube body, the strip-shaped through hole is located on a side of the first resisting member close to the second tube body, the second resisting member is slidably disposed on the strip-shaped through hole, and the second resisting member is connected to the sleeve;

[0021] The elastic member is a spring, which is placed between the first resisting member and the second resisting member, and two ends of the spring are respectively connected to the first resisting member and the second resisting member.

[0022] The technical solution of the embodiment of the present application further includes: a connecting piece, wherein both ends of the connecting piece are rotatably connected to the first tube body and the second tube body respectively, and the tube diameter of the connecting piece is smaller than the tube diameter of the sleeve.

[0023] To achieve the above-mentioned purpose, the present application also provides a fence side structure with a connecting device, including: a connecting device described in any one of the embodiments.

[0024] To achieve the above-mentioned purpose, it includes: a connecting device described in any one of the embodiments.

[0025] Unlike existing technologies, the above-mentioned technical solution utilizes a rotatable connection between the first and second tubes, allowing for easy folding and storage when not in use, saving storage space while also improving overall portability. The sliding arrangement of the sleeve ensures that the axes of the two tubes precisely align at the connection when needed, thereby maintaining the device's straight position and increasing the strength of the connection. This arrangement not only enhances the stability and support of the device during use, but also prevents bending or deformation at the connection between the two tubes during use, effectively extending the device's service life.

[0026] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0028] Figure 1 This is a structural diagram of a specific embodiment in which the sleeve is sleeved on the first tube body and the second tube body;

[0029] Figure 2 This is a structural diagram of the sleeve when it moves toward the first limiting ring in the specific embodiment;

[0030] Figure 3 This is a structural diagram of a specific embodiment in which the first tube body and the second tube body are bent;

[0031] Figure 4 This is a structural diagram of the strip-shaped through hole and the spring described in a specific embodiment;

[0032] Figure 5 A cross-sectional view of the connecting device according to a specific embodiment;

[0033] Figure 6 This is a side structure diagram of the fence described in the specific implementation method

[0034] Figure 7 This is a structural diagram of the fence when it is unfolded as described in the specific embodiment;

[0035] Figure 8This is a structural diagram of the fence when it is stored according to the specific implementation method.

[0036] Description of reference numerals:

[0037] 10. First tube body; 20. Second tube body; 30. Sleeve; 40. First limiting ring; 50. Second limiting ring; 60. First clamping member; 70. Second clamping member; 80. Connecting member;

[0038] 11. Strip-shaped through hole;

[0039] 91. Spring. DETAILED DESCRIPTION

[0040] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0041] 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; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0042] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0043] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0044] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0045] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0046] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0047] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0048] See also Figures 1 to 5 , this embodiment provides a connection device, including:

[0049] first tube body 10;

[0050] a second tube body 20, wherein an end of the second tube body 20 is rotatably connected to an end of the first tube body 10;

[0051] The sleeve 30 is slidably mounted on the first tube body 10 and / or the second tube body 20. When the sleeve 30 is simultaneously mounted on the first tube body 10 and the second tube body 20, the axis of the first tube body 10 coincides with the axis of the second tube body 20 to prevent the first tube body 10 and the second tube body 20 from bending at the connection.

[0052] The first tube body 10 and the second tube body 20 are made of high-strength, corrosion-resistant materials, such as stainless steel or aluminum alloy, to ensure sufficient strength and durability during use. The ends of the first tube body 10 and the second tube body 20 are rotatably connected. Specifically, the ends of the first tube body 10 and the second tube body 20 are provided with mutually mating bearings or rotary joints to enable relative rotation of the first tube body 10 and the second tube body 20.

[0053] Furthermore, the first tube body 10 and the second tube body 20 have the same diameter. When the axes of the first tube body 10 and the second tube body 20 coincide, the two form a straight rod.

[0054] The sleeve 30 is a hollow tube with open ends. The sleeve 30 is made of the same material as the first tube 10 and will not be further described here. The inner wall of the sleeve 30 is smooth to reduce friction with the first tube 10 and the second tube 20. The inner diameter of the sleeve 30 matches the diameters of the first and second tubes 10, 20, ensuring that the sleeve 30 fits snugly around the first and / or second tubes 10, 20 and provides sufficient support.

[0055] In some embodiments, the inner wall edge of the sleeve 30 has a chamfer to facilitate the socketing of the second tube body 20; that is, when the sleeve 30 moves toward the second tube body 20, when the axes of the first tube body 10 and the second tube body 20 do not completely coincide, the chamfer has a guiding role to fine-tune the second tube body 20.

[0056] In actual use, when the first tube body 10 and the second tube body 20 need to be connected, the ends of the two are first aligned, and then the sleeve 30 located on the first tube body 10 is slid onto the first tube body 10 and the second tube body 20, so that the sleeve 30 is simultaneously sleeved on the first tube body 10 and the second tube body 20.

[0057] When the sleeve 30 is simultaneously placed over the first tube 10 and the second tube 20, the axis of the first tube 10 and the axis of the second tube 20 automatically align due to the restrictive effect of the sleeve 30, thereby preventing the rotatable connection from bending or deformation when subjected to force. In other words, when it is necessary to keep the axes of the first tube 10 and the second tube 20 aligned to prevent bending, the user can slide the sleeve 30 to a position that covers both tubes simultaneously.

[0058] A rotatable connection is achieved by providing bearings or rotary joints at the ends of the first and second tubes 10, 20. This connection allows the first and second tubes 10, 20 to rotate relative to each other, facilitating storage of the first and second tubes 10, 20. Specifically, to store the first and second tubes 10, 20, the sleeve 30 is slid open to expose the connection, and the second tube 20 is then rotated to complete the storage.

[0059] The sleeve 30 is slidably arranged, allowing the connection device to maintain flexibility while preventing bending or deformation of the connection under stress. When the sleeve 30 is simultaneously mounted on the first tube body 10 and the second tube body 20, the axis of the first tube body 10 and the axis of the second tube body 20 automatically coincide due to the restraining effect of the sleeve 30, thereby ensuring the stability and reliability of the connection device.

[0060] Different from the existing technology, the above technical solution adopts a rotatable connection between the first tube body 10 and the second tube body 20, so that it can be easily folded and stored when not in use, saving storage space and improving overall portability. The sliding setting of the sleeve ensures that the axes of the two tubes are precisely aligned at the connection when needed, thereby maintaining the straight state of the device and improving the connection strength at the connection. This setting not only enhances the stability and support force of the device during use, but also avoids bending or deformation at the connection between the two tubes during use, effectively extending the service life of the device.

[0061] According to some embodiments of the present application, referring to Figures 1 to 3 , further comprising: a first limiting ring 40;

[0062] The first limiting ring 40 is sleeved on the first tube 10 , and the distance from the first limiting ring 40 to the end of the first tube 10 close to the second tube 20 is greater than or equal to the length of the sleeve 30 .

[0063] The first retaining ring 40 is mounted on the first tube 10. The distance between the first retaining ring 40 and the end of the first tube 10 near the second tube 20 (i.e., the distance between the first retaining ring 40 and the connection between the first tube 10 and the second tube 20) is greater than or equal to the length of the sleeve 30. This prevents the sleeve 30 from sliding off the first tube 10. Specifically, when the sleeve 30 is pushed toward the other end of the first tube 10, the first retaining ring 40 blocks the sleeve 30, preventing it from completely separating from the first tube 10. Furthermore, when the sleeve 30 is stored, it is positioned between the first retaining ring 40 and the end of the first tube 10, interfering with the folding of the first and second tubes 10, 20.

[0064] According to some embodiments of the present application, referring to Figures 1 to 3 , further comprising: a second limiting ring 50;

[0065] The second limiting ring 50 is sleeved on the second tube 20 , and the distance between the second limiting ring 50 and the end of the second tube 20 close to the first tube 10 is less than the length of the sleeve 30 .

[0066] The second retaining ring 50 is mounted on the second tube 20, and the distance between the second tube 20 and the end of the first tube 10 is less than the length of the sleeve 30. This ensures that when the sleeve 30 slides to cover the second tube 20, it is blocked by the second retaining ring 50, preventing further movement. At this point, the sleeve 30 has reached its maximum range, preventing it from sliding out of the first tube 10 due to excessive movement.

[0067] During use, when the sleeve 30 is slid to a position that covers both the first tube 10 and the second tube 20, the axes of the first and second tubes 10 and 20 coincide, allowing the connection device to remain stable under load and prevent bending. At this point, the second retaining ring 50 contacts the sleeve 30, restricting its position and preventing it from failing to cover the first tube 10.

[0068] When the first tube body 10 and the second tube body 20 need to be accommodated, the sleeve 30 is slid so that the sleeve 30 contacts the first limiting ring 40 to expose the connection, and then the second tube body 20 is rotated to complete the accommodation.

[0069] According to some embodiments of the present application, referring to Figures 1 to 3 , further comprising: a first clamping member 60;

[0070] The first clamping member 60 is disposed on a side of the sleeve close to the first limiting ring 40 , and the first clamping member 60 is used to be clamped with the first limiting ring 40 .

[0071] The first clamping member 60 is positioned on the side of the sleeve 30 adjacent to the first retaining ring 40. The first clamping member 60 engages with the first retaining ring 40, thereby securing the sleeve 30 to the first tube 10. The securing mechanism may be a mechanical snap, hook, or, in some embodiments, magnetic attraction. Specifically, when stored, the sleeve 30 is positioned between the first retaining ring 40 and the end of the first tube 10, with the first clamping member 60 engaging the first retaining ring 40 to prevent the sleeve from sliding during storage.

[0072] During use, the sleeve 30 is slid to be sleeved only on the first tube body 10 , and when the sleeve 30 needs to be fixed, the first clamping member 60 can be operated to be clamped with the first limiting ring 40 .

[0073] When the sleeve 30 slides to the desired position, the first clamping member 60 is operated (such as pressing the buckle, rotating the hook, etc.) to make it closely contact and clamp together with the first limiting ring 40. In this way, the sleeve 30 is firmly fixed to the first tube body 10 and will not easily slide or fall off due to external forces.

[0074] Furthermore, the first clamping member 60 is provided with a locking hole, and the first retaining ring 40 is provided with a protrusion. When a locking connection is required, the sliding sleeve 30 causes the first clamping member 60 to contact the protrusion of the first retaining ring 40, causing the end of the first clamping member 60 away from the sleeve 30 to lift upward until the protrusion is placed in the locking hole, completing the locking connection. It should also be noted that the first clamping member 60 is an extension of the sleeve toward the first clamping ring. Specifically, the first clamping member 60 is plate-shaped, and the locking hole is located on the side of the first clamping member 60 away from the sleeve 30.

[0075] According to some embodiments of the present application, referring to Figures 1 to 3 , further comprising: a second clamping member 70;

[0076] The second clamping member 70 is disposed on a side of the sleeve close to the second limiting ring 50 , and the second clamping member 70 is used to be clamped with the second limiting ring 50 .

[0077] The second clamping member 70 is positioned on the side of the sleeve 30 near the second retaining ring 50. The second clamping member 70 engages with the second retaining ring 50, thereby securing the sleeve 30 to the first and second tubes 10, 20. The clamping mechanism is identical to that of the first clamping member 60 and will not be further described here. When the sleeve 30 is positioned over the ends of the first and second tubes 10, 20, the second clamping member 70 engages with the second retaining ring 50 to prevent the sleeve 30 from slipping.

[0078] During use, the sleeve 30 is slid to be sleeved only on the first tube body 10 , and when the sleeve 30 needs to be fixed, the first clamping member 60 can be operated to be clamped with the first limiting ring 40 .

[0079] During use, the sleeve 30 is slid to cover the positions of the first tube body 10 and the second tube body 20 at the same time. When the position of the sleeve 30 needs to be fixed, the second clamping member 70 can be operated to clamp it with the second limiting ring 50.

[0080] When the sleeve 30 slides to the desired position, the second clamping member 70 is operated (such as pressing the buckle, rotating the hook, etc.) to make it closely contact and clamp together with the second limiting ring 50. In this way, the sleeve 30 is firmly fixed to the second tube body 20 and will not easily slide or fall off due to external forces.

[0081] Furthermore, the second clamping member 70 is provided with a locking hole, and the second retaining ring 50 is provided with a protrusion. When the second clamping member 70 is required to engage, the sliding sleeve 30 causes the second clamping member 70 to contact the protrusion of the second retaining ring 50, causing the end of the second clamping member 70 away from the sleeve 30 to lift upward until the protrusion is placed in the locking hole, completing the engagement. It should also be noted that the second clamping member 70 is an extension of the sleeve toward the second clamping ring. Specifically, the second clamping member 70 is plate-shaped, and the locking hole is located on the side of the second clamping member 70 away from the sleeve 30.

[0082] According to some embodiments of the present application, referring to Figures 4 and 5 , further comprising: an elastic member; both ends of the elastic member are connected to the first tube body 10 and the sleeve 30 respectively;

[0083] Alternatively, both ends of the elastic member are connected to the second tube body 20 and the sleeve 30 respectively;

[0084] The elastic member is used to drive the sleeve 30 to be sleeved on the first tube body 10 and the second tube body 20 at the same time.

[0085] There are two ways to connect the elastic member: First, the two ends of the elastic member are connected to the first tube 10 and the sleeve 30, respectively. One end of the elastic member is fixed to the first tube 10, and the other end is connected to the sleeve 30. Second, the two ends of the elastic member are connected to the second tube 20 and the sleeve 30, respectively. One end of the elastic member is fixed to the second tube 20, and the other end is connected to the sleeve 30. This ensures that when the sleeve 30 slides, the elastic member can provide a continuous push or pull force, tending to keep the sleeve 30 in a specific position (either only on the first tube 10 or on both the first tube 10 and the second tube 20).

[0086] According to some embodiments of the present application, referring to Figures 4 and 5 , further comprising: a first resistance member and a second resistance member; the first tube body 10 is a hollow tube body, the first resistance member is fixedly placed in the first tube body 10, a strip through hole 11 is provided through the side wall of the first tube body 10, the strip through hole 11 is located on the side of the first resistance member close to the second tube body 20, the second resistance member is slidably provided on the strip through hole 11, and the second resistance member is connected to the sleeve 30;

[0087] The elastic member is a spring 91 , which is placed between the first resisting member and the second resisting member, and two ends of the spring 91 are respectively connected to the first resisting member and the second resisting member.

[0088] The first tube 10 is a hollow tube with a first resisting member fixed inside. The first resisting member is cylindrical or in another shape and is used to resist the spring 91. It is located at the end of the first tube 10 near the second tube 20. Strip-shaped through holes 11 are provided through the sidewall of the first tube 10. These strip-shaped through holes 11 are symmetrically arranged on both sides of the first tube 10 and located on the side of the first resisting member near the second tube 20. These strip-shaped through holes 11 allow the second resisting member to slide therethrough.

[0089] The second resisting member is slidably disposed on the strip-shaped through hole 11 and is fixedly connected to the sleeve 30. When the sleeve 30 slides on the first tube body 10, the sleeve 30 drives the second resisting member to move on the strip-shaped through hole 11.

[0090] The spring 91 is placed between the first and second resisting members. The two ends of the spring 91 are connected to the first and second resisting members respectively, ensuring that the spring 91 can provide continuous elastic force when compressed or stretched.

[0091] During use, the sleeve 30 is placed on the first tube 10, while the second tube 20 is aligned with the centerline of the first tube 10. At this point, under the elastic force of the spring 91, the second resisting member is subjected to an elastic force toward the second tube 20. Due to the restriction of the strip-shaped through hole 11, the second resisting member moves in the direction of the strip-shaped through hole 11. This allows the sleeve 30 to be simultaneously placed on the first tube 10 and the second tube 20, thereby preventing bending at the connection between the two. At this point, the spring 91 is in its original state.

[0092] When the first tube body 10 and the second tube body 20 are accommodated, the tube body is pulled to move toward the first tube body 10 , compressing the spring 91 so that the sleeve 30 slides off the second tube body 20 .

[0093] Furthermore, when the sleeve 30 is only sleeved on the first tube body 10 , the first clamping member 60 is clamped with the first limiting ring 40 ; when the sleeve 30 is simultaneously sleeved on the first tube body 10 and the second tube body 20 , the second clamping member 70 is clamped with the second limiting ring 50 .

[0094] According to some embodiments of the present application, referring to Figures 3 to 5 , further comprising: a connecting member 80, wherein both ends of the connecting member 80 are rotatably connected to the first tube body 10 and the second tube body 20 respectively, and the diameter of the connecting member 80 is smaller than the diameter of the sleeve 30.

[0095] The connector 80 is used to connect the first tube body 10 and the second tube body 20. The connector 80 includes a first joint, a second joint, and a fixed joint. Connecting grooves are provided on both sides of the fixed joint. One end of the first joint is placed in one connecting groove of the fixed joint, and the other end of the first joint is connected to the first tube body 10. Similarly, one end of the second joint is placed in the other connecting groove of the fixed joint, and the other end of the second joint is connected to the second tube body 20. Furthermore, the first joint and the fixed joint are rotatably connected, and the second joint and the fixed joint are rotatably connected.

[0096] See also Figure 6 This embodiment provides a fence side structure with a connecting device, including: a connecting device described in any embodiment, a first support rod and a second support rod; the first support rod is vertically arranged, and there is a gap between two adjacent first support rods, and the two ends of the connecting device are respectively connected to the two adjacent first support rods. When the connecting device is folded, the first support rods move closer to each other.

[0097] The second support rod is in a horizontal position when unfolded, one end of the second support rod is rotatably connected to a first support rod, and the other end of the second support rod is slidingly connected to another first support rod, so that the second support rod is in a vertical state when stored, and the storage is completed.

[0098] See also Figures 7 and 8 This embodiment provides a fence, comprising: a connecting device as described in any embodiment, a plurality of the first support rods enclosing the fence, and a connecting device connecting two adjacent first support rods. When stored, the adjacent support rods move closer to each other.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A connecting device, characterized in that: include: first tube body; a second tube body, an end portion of the second tube body being rotatably connected to an end portion of the first tube body; A sleeve is slidably mounted on the first tube body and / or the second tube body; wherein, when the sleeve is simultaneously mounted on the first tube body and the second tube body, the axis of the first tube body coincides with the axis of the second tube body to avoid bending of the first tube body and the second tube body at the connection.

2. A connecting device according to claim 1, characterized in that: Also includes: a first limiting ring; The first limiting ring is sleeved on the first tube body, and the distance from the first limiting ring to the end of the first tube body close to the second tube body is greater than or equal to the length of the sleeve.

3. A connecting device according to claim 2, characterized in that: Also includes: A second limiting ring; The second limiting ring is sleeved on the second tube body, and the distance from the second limiting ring to the end of the second tube body close to the first tube body is less than the length of the sleeve.

4. A connecting device according to claim 2, characterized in that: Also includes: a first clamping member; The first clamping member is placed on a side of the sleeve close to the first limiting ring, and the first clamping member is used for clamping with the first limiting ring.

5. A connecting device according to claim 3, characterized in that: Also includes: a second clamping member; The second clamping member is placed on a side of the sleeve close to the second limiting ring, and the second clamping member is used for clamping with the second limiting ring.

6. A connecting device according to claim 1, characterized in that: Also includes: Elastic member; both ends of the elastic member are connected to the first tube body and the sleeve respectively; Alternatively, both ends of the elastic member are connected to the second tube body and the sleeve respectively; The elastic member is used to drive the sleeve to be sleeved on the first tube body and the second tube body at the same time.

7. A connecting device according to claim 6, characterized in that: Also includes: A first resisting member and a second resisting member; the first tube body is a hollow tube body, the first resisting member is fixedly placed in the first tube body, a strip-shaped through-hole is provided through the side wall of the first tube body, the strip-shaped through-hole is located on the side of the first resisting member close to the second tube body, the second resisting member is slidably provided on the strip-shaped through-hole, and the second resisting member is connected to the sleeve; The elastic member is a spring, which is placed between the first resisting member and the second resisting member, and two ends of the spring are respectively connected to the first resisting member and the second resisting member.

8. The connecting device according to claim 1, characterized in that: Also includes: A connecting piece, wherein both ends of the connecting piece are rotatably connected to the first tube body and the second tube body respectively, and the tube diameter of the connecting piece is smaller than the tube diameter of the sleeve.

9. A fence side structure with a connecting device, characterized in that: include: A connecting device as claimed in any one of claims 1 to 8.

10. A fence, characterized in that: include: A connecting device as claimed in any one of claims 1 to 8.

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