Connecting cover and fence unit thereof

Abstract

According to the technical scheme, the connecting cover is characterized in that the connecting cover comprises a connecting cover body, at least two connecting holes are formed in the connecting cover body, two adjacent fence units are rotationally connected with the two connecting holes respectively, the connecting cover body and one fence unit are limited in the vertical direction, and a limiting sleeve is arranged on the connecting cover body in a sliding mode in the vertical direction; a first spring is arranged between the limiting sleeve and the connecting cover, a knob is rotationally connected to the limiting sleeve, a through hole is formed in the top of the connecting cover in the vertical direction, an ejector rod extends out of the bottom of the knob towards the interior of the through hole, and when the limiting sleeve moves upwards, the first spring is compressed, and the ejector rod moves out of the through hole; by arranging the eccentric ejector rod, the fence unit can be kept in a rotatable state, a user can conveniently adjust the rotation angle of the fence unit, the fence can be freely adjusted, and the flexibility is higher.

Description

Technical Field

[0001] This utility model relates to the field of fence technology, and more specifically to a connecting cover and its fence unit. Background Technology

[0002] Interlocking child playpens are ring-shaped safety devices composed of multiple independent playpens connected by a connecting structure. They are widely used for the maintenance of activity areas for infants and toddlers. The connected playpens can be rotated to different angles, thus forming playpens of various shapes.

[0003] Fence units typically have a limiting sleeve on their connection structure to restrict rotation. To adjust the angle of a fence unit, the limiting sleeve must first be separated from the unit's pivot to unlock it. However, existing fence unit limiting components require continuous force from the user to maintain the unlocked state, making operation difficult and preventing multiple fence units from being unlocked simultaneously, resulting in poor freedom and flexibility in adjustment. Utility Model Content

[0004] To solve the above problems, this utility model provides the following technical solution:

[0005] A connecting cover includes a connecting cover with at least two connecting holes. Two adjacent fence units are rotatably connected to the two connecting holes respectively. The connecting cover and one of the fence units are vertically limited. A limiting sleeve is slidably provided on the connecting cover in the vertical direction. The limiting sleeve is used to circumferentially limit the rotation axis of the fence unit. A first spring is provided between the limiting sleeve and the connecting cover. A knob is rotatably connected to the limiting sleeve. A through hole is provided on the top of the connecting cover in the vertical direction. A push rod extends from the bottom of the knob toward the through hole. When the limiting sleeve moves upward, the first spring is compressed, and the push rod moves out of the through hole.

[0006] The present invention is further configured such that: the limiting sleeve includes a sliding block that is slidably disposed in the connecting cover in a vertical direction, the sliding block having a limiting hole corresponding to the connecting hole, the limiting hole being polygonal in shape, the limiting hole being circumferentially limited when disposed on the rotating shaft of the fence unit, and also includes a shell disposed on the outside of the connecting cover, the shell being connected to the sliding block, and the knob being rotatably connected to the top of the shell.

[0007] The present invention is further configured such that: a stepped surface is provided on the inner side of the sliding block, the first spring is sleeved on the outer side of the rotating shaft of the fence unit, one end of the first spring contacts the stepped surface, and the other end contacts the inner top wall of the connecting cover.

[0008] The present invention is further configured such that: a sliding hole is provided on the side wall of the connecting cover in the vertical direction, and a sliding rod is connected between the sliding block and the outer shell, the sliding rod passing through the sliding hole and slidably connected thereto.

[0009] The present invention is further configured such that the top rod is arranged in a vertical direction and is close to the bottom edge of the knob.

[0010] The present invention is further configured such that: an arc-shaped travel groove is provided on the top of the outer shell, and a travel rod protrudes from the knob toward the travel groove. The travel rod slides along the travel groove, and when the travel rod slides to one end of the travel groove, the top rod is aligned with the through hole.

[0011] Furthermore, this utility model also proposes a fence unit, including the aforementioned connecting cover and a rectangular frame. The top of each end of the frame is provided with a first rotating shaft. The connecting cover is rotatably connected to one of the first rotating shafts and is limited in the vertical direction. The other first rotating shaft is rotatably connected to the connecting cover of the adjacent frame. Each of the first rotating shafts is provided with a limiting block that cooperates with the limiting sleeve. A second rotating shaft is provided at the bottom of one end of the frame. A mounting cover is rotatably connected to the bottom of the other end of the frame. The second rotating shaft is rotatably connected to the mounting cover of the adjacent frame.

[0012] The present invention is further configured such that: the mounting cover has a mounting hole, the second rotating shaft is rotatably connected to the mounting hole, and the second rotating shaft is movably disposed on the frame in the vertical direction.

[0013] The present invention is further configured such that: a clearance groove is provided at the bottom of the frame along the vertical direction, the second rotating shaft is slidably connected in the clearance groove, and a second spring is provided between the top of the second rotating shaft and the clearance groove. When the second spring is in the initial state, the bottom of the second rotating shaft protrudes out of the clearance groove.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] 1. By setting up a connecting cover, when the fence unit needs to rotate, the limiting sleeve is moved upwards to put the fence unit in a rotatable unlocked state. At this time, turning the knob will cause the top rod, due to its eccentric setting, to abut against the top of the connecting cover and prevent it from retracting into the through hole. This prevents the first spring from rebounding and the limiting sleeve from resetting, thus maintaining the fence unit in a rotatable state. This allows users to easily adjust the rotation angle of the fence unit and can also simultaneously put all fence units in a rotatable state, allowing for free adjustment of the fence and greater flexibility.

[0016] 2. By setting a travel groove, when the knob is turned to one end of the travel groove, it can no longer be turned. At this time, the push rod is just aligned with the through hole, and the first spring can directly restore the limit sleeve to the locked state without spending extra time adjusting the knob, thus improving the convenience of user operation.

[0017] 3. The second rotating shaft is movably set by the second spring. When splicing between adjacent frames, the first rotating shaft is inserted into the connecting cover, and the second rotating shaft at the bottom can be retracted inward. Then, the second spring pushes the second rotating shaft into the mounting hole to realize the installation between adjacent frames. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the connecting cover;

[0019] Figure 2 This is a schematic diagram of the explosion of the connecting cover;

[0020] Figure 3 This is an internal diagram showing the connecting cover fixed to the rotating shaft;

[0021] Figure 4 This is an explosion diagram from the first perspective of the limiting sleeve;

[0022] Figure 5 This is an exploded diagram from the second perspective of the limiting sleeve;

[0023] Figure 6 This is a schematic diagram of a fence unit;

[0024] Figure 7 This is a three-dimensional sectional view at the second pivot point;

[0025] Figure 8 This is a schematic diagram of multiple fence units assembled into a fence.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Connecting cover; 2. Connecting hole; 301. Sliding block; 302. Outer shell; 303. Knob; 4. Through hole; 5. Top rod; 6. First spring; 7. Limiting hole; 8. Step surface; 9. Sliding hole; 10. Sliding rod; 11. Stroke groove; 12. Stroke rod; 13. Fence unit; 14. First rotating shaft; 15. Limiting block; 16. Second rotating shaft; 17. Mounting cover; 18. Mounting hole; 19. Clearance groove; 20. Second spring; 21. Guide rod. Detailed Implementation

[0028] 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] A connecting cover, such as Figures 1 to 5 As shown, the device includes a connecting cover 1 with at least two connecting holes 2. Two adjacent fence units 13 are rotatably connected to the two connecting holes 2 respectively. The connecting cover 1 and one of the fence units 13 are vertically limited. A limiting sleeve is slidably provided on the connecting cover 1 in the vertical direction. The limiting sleeve is used to circumferentially limit the rotation axis of the fence unit 13. A first spring 6 is provided between the limiting sleeve and the connecting cover 1. A knob 303 is rotatably connected to the limiting sleeve. A through hole 4 is provided on the top of the connecting cover 1 in the vertical direction. An eccentrically positioned top rod 5 extends from the bottom of the knob 303 into the through hole 4. When the limiting sleeve moves upward, the first spring 6 is compressed, and the top rod 5 moves out of the through hole 4.

[0031] The limiting sleeve includes a sliding block 301 that slides vertically within the connecting cover 1. The sliding block 301 has a limiting hole 7 corresponding to the connecting hole 2. The limiting hole 7 is polygonal in shape and provides circumferential limiting when it is fitted onto the rotating shaft of the fence unit 13. The rotating shaft of the fence unit 13 passes through the limiting hole 7, and a polygonal limiting block 15 is coaxially arranged on the outer side of the rotating shaft. The limiting hole 7 fits onto the limiting block 15. Because the limiting hole 7 is polygonal, the rotating shaft cannot rotate, thus achieving circumferential limiting. When the sliding block 301 moves upward, separating the limiting hole 7 from the limiting block 15, the rotating shaft of the fence unit 13 can resume rotation. Figure 2 As can be seen, the connecting hole 2 is also the same octagon, but the size of the connecting hole 2 is larger than the size of the limiting block 15, so the connecting hole 2 will not interfere with the rotation of the shaft.

[0032] After the pivot of one of the fence units 13 is inserted into the connecting cover 1, a screw is inserted into the top of the connecting cover 1 to fix it to the pivot, thereby achieving vertical limiting and keeping the connecting cover 1 fixed when the limiting sleeve moves upward. After the limiting sleeve moves upward and the top rod 5 moves out of the through hole 4, the user rotates the knob 303. Since the top rod 5 is eccentrically set, the top rod 5 will deviate from the through hole 4. At this time, when the user releases the knob, the top rod 5 will abut against the top of the connecting cover 1, so that the first spring 6 cannot rebound and the limiting sleeve cannot reset and cooperate with the limiting block 15, thereby maintaining the unlocked state in which the pivot of the fence unit 13 can rotate.

[0033] The limiting sleeve also includes a housing 302 disposed on the outside of the connecting cover 1. The housing 302 is fitted onto the connecting cover 1 and moves in the vertical direction. The housing 302 is connected to the sliding block 301. The knob 303 is rotatably connected to the top of the housing 302. By setting the housing 302, the user can easily operate the sliding block 301.

[0034] A sliding hole 9 is provided on the side wall of the connecting cover 1 in the vertical direction. A sliding rod 10 is connected between the sliding block 301 and the outer shell 302. The sliding rod 10 passes through the sliding block 301. Both ends of the sliding rod 10 pass through the sliding hole 9 and are fixed to the outer shell 302. The sliding rod 10 is slidably connected to the sliding hole 9. The outer shell 302 drives the sliding block 301 to move up and down through the sliding rod 10.

[0035] A stepped surface 8 is provided on the inner side of the sliding block 301 near the bottom end. The stepped surface 8 protrudes inward. The first spring 6 is sleeved on the outer side of the rotating shaft of the fence unit 13. One end of the first spring 6 contacts the stepped surface 8, and the other end contacts the inner top wall of the connecting cover 1. When the sliding block 301 moves upward, the first spring 6 is compressed. When the first spring 6 is in the initial state (naturally extended state), the sliding block 301 is located at the bottom end of the connecting cover 1 and sleeved on the limiting block 15 of the rotating shaft.

[0036] In this embodiment, the push rod 5 extends downward in the vertical direction. The push rod 5 is close to the bottom edge of the knob 303. The push rod 5 and the knob 303 are not on the same axis to achieve an eccentric design. After the knob 303 is rotated, the push rod 5 separates from the through hole 4, so that the sliding block 301 cannot move downward.

[0037] like Figure 4 and Figure 5 As shown, in this embodiment, the top of the outer casing 302 is provided with an arc-shaped travel groove 11. The arc shape of the travel groove 11 is coaxially arranged with the knob 303. A travel rod 12 protrudes from the knob 303 into the travel groove 11. When the knob 303 is rotated, the travel rod 12 slides along the travel groove 11. When the travel rod 12 slides to one end of the travel groove 11, the top rod 5 is aligned with the through hole 4. When the user needs to restore the locked state, he / she can simply rotate the knob 303 to the end without having to spend extra time adjusting the knob 303, thus improving the convenience of user operation.

[0038] This embodiment also proposes a fence unit 13, such as Figures 6 to 8 As shown, the device includes the aforementioned connecting cover 1 and a rectangular frame. The top of each end of the frame is provided with a first pivot 14. The connecting cover 1 is rotatably connected to one of the first pivots 14 and is limited in the vertical direction. The other first pivot 14 is rotatably connected to the connecting cover 1 of the frame of the adjacent fence unit 13. Each of the first pivots 14 is provided with a limiting block 15 that cooperates with the limiting sleeve.

[0039] A second pivot 16 is provided at the bottom of one end of the frame, and a mounting cover 17 is rotatably connected to the bottom of the other end of the frame. The second pivot 16 is rotatably connected to the mounting cover 17 of the frame of the adjacent fence unit 13. In this embodiment, the connecting cover 1 and the mounting cover 17 are located at the same end of the frame, and two adjacent frames are spliced ​​together through the connecting cover 1 and the mounting cover 17.

[0040] The mounting cover 17 has mounting holes 18, and the second rotating shaft 16 is rotatably connected to the mounting holes 18. The second rotating shaft 16 is movably mounted on the frame in the vertical direction. This allows the second rotating shaft 16 to retract inward to achieve installation when adjacent frames are spliced ​​together.

[0041] The mounting hole 18 extends vertically through the mounting cover 17. When the fence unit 13 needs to be disassembled, the second rotating shaft 16 can be pushed upward through the bottom of the mounting hole 18. The bottom of the mounting cover 17 is covered with a sealing cap, which can normally block the bottom of the mounting hole 18 to prevent the second rotating shaft 16 from accidentally falling off. The sealing cap can be removed when necessary.

[0042] A clearance groove 19 is provided at the bottom of the frame along the vertical direction. The second rotating shaft 16 is slidably connected in the clearance groove 19. The peripheral side wall of the second rotating shaft 16 is in contact with the inner wall of the clearance groove 19. A second spring 20 is provided between the top of the second rotating shaft 16 and the clearance groove 19. When the second rotating shaft 16 retracts into the clearance groove 19, the second spring 20 is compressed. When the second spring 20 is in the initial state, the bottom of the second rotating shaft 16 protrudes out of the clearance groove 19.

[0043] A circular hole is provided at the top of the recess 19. A guide rod 21 protrudes from the top of the second rotating shaft 16 and is slidably connected to the circular hole. A screw is installed at the top of the recess 19, passes through the circular hole, and is fixed to the guide rod 21. The size of the screw head is larger than the circular hole, so that the second rotating shaft 16 will not fall out of the recess 19. A second spring 20 is sleeved on the outside of the guide rod 21. The bottom end of the second spring 20 contacts the second rotating shaft 16, and the top end contacts the top wall of the recess 19. When the second rotating shaft 16 retracts into the recess 19, the guide rod 21 moves upward along the circular hole, and the second spring 20 is compressed.

[0044] The usage process and beneficial effects of this utility model are as follows:

[0045] When assembling adjacent fence units 13, the first pivot 14 is inserted from below into the connecting cover 1 of the adjacent fence unit, and then the second pivot 16 is inserted into the mounting cover 17 to complete the assembly. After assembling multiple fence units 13, they are connected end to end to form a fence, creating a protected area for children to play in.

[0046] During assembly, the fence unit 13 needs to be adjusted in rotation angle. First, pull the outer shell 302 upward to separate the internal limiting sleeve from the limiting block 15 on the rotating shaft of the fence unit 13, and the fence unit 13 enters a rotatable state. At this time, the top rod 5 of the knob 303 moves out of the through hole 4, so that the knob 303 can start to rotate. After rotating the knob 303, the top rod 5 deviates from the through hole 4 and abuts against the top of the connecting cover 1, so that the first spring 6 cannot rebound and the limiting sleeve cannot reset, thereby keeping the fence unit 13 in a rotatable state.

[0047] After the rotation angle of the fence unit 13 is adjusted, the knob 303 is rotated back to its original position, the top rod 5 is realigned with the through hole 4, the first spring 6 rebounds and drives the limit sleeve to move downward and reset, the limit sleeve is re-fitted onto the limit block 15 of the rotating shaft of the fence unit 13, and the fence unit 13 returns to the locked state where it cannot be rotated.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connecting cover, wherein the connecting cover has at least two connecting holes, two adjacent fence units are rotatably connected to the two connecting holes respectively, and the connecting cover and one of the fence units are vertically limited, characterized in that: A limiting sleeve is slidably provided on the connecting cover in the vertical direction. The limiting sleeve is used to circumferentially limit the rotating shaft of the fence unit. A first spring is provided between the limiting sleeve and the connecting cover. A knob is rotatably connected to the limiting sleeve. A through hole is opened on the top of the connecting cover in the vertical direction. An eccentrically set top rod extends from the bottom of the knob toward the through hole. When the limiting sleeve moves upward, the first spring is compressed and the top rod moves out of the through hole.

2. A connecting cover according to claim 1, characterized in that: The limiting sleeve includes a sliding block that is slidably disposed in the connecting cover in a vertical direction. The sliding block has a limiting hole corresponding to the connecting hole. The limiting hole is polygonal in shape. When the limiting hole is fitted onto the rotating shaft of the fence unit, it limits the circumference of the fence unit. The sleeve also includes a shell disposed on the outside of the connecting cover. The shell is connected to the sliding block. The knob is rotatably connected to the top of the shell.

3. A connecting cover according to claim 2, characterized in that: The sliding block has a stepped surface on its inner side. The first spring is sleeved on the outer side of the rotating shaft of the fence unit. One end of the first spring contacts the stepped surface, and the other end contacts the inner top wall of the connecting cover.

4. A connecting cover according to claim 2, characterized in that: A sliding hole is provided on the side wall of the connecting cover in the vertical direction. A sliding rod is connected between the sliding block and the outer shell. The sliding rod passes through the sliding hole and is slidably connected to it.

5. A connecting cover according to claim 2, characterized in that: The push rod is set vertically and is located near the bottom edge of the knob.

6. A connecting cover according to claim 5, characterized in that: The top of the outer casing has an arc-shaped travel groove, and the knob has a travel rod protruding into the travel groove. The travel rod slides along the travel groove, and when the travel rod slides to one end of the travel groove, the top rod aligns with the through hole.

7. A fence unit, characterized in that: The connecting cover, including any one of claims 1-6, further includes a rectangular frame. The top of each end of the frame is provided with a first pivot. The connecting cover is rotatably connected to one of the first pivots and is limited in the vertical direction. The other first pivot is rotatably connected to the connecting cover of the adjacent frame. Each of the first pivots is provided with a limiting block that cooperates with the limiting sleeve. A second pivot is provided at the bottom of one end of the frame. A mounting cover is rotatably connected at the bottom of the other end of the frame. The second pivot is rotatably connected to the mounting cover of the adjacent frame.

8. A fence unit according to claim 7, characterized in that: The mounting cover has a mounting hole, the second rotating shaft is rotatably connected to the mounting hole, and the second rotating shaft is movably mounted on the frame in the vertical direction.

9. A fence unit according to claim 8, characterized in that: The bottom of the frame is provided with a clearance groove along the vertical direction. The second rotating shaft is slidably connected in the clearance groove. A second spring is provided between the top of the second rotating shaft and the clearance groove. When the second spring is in the initial state, the bottom of the second rotating shaft protrudes out of the clearance groove.

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