A retractable folding pet dog enclosure
The retractable and foldable sliding sleeve and snap-fit rod structure solves the problem of non-adjustable fence width, enabling convenient width adjustment and assembly, and improving the practicality and work efficiency of the fence.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YUNPENG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-08-04
AI Technical Summary
The existing fences cannot be adjusted in width, which increases the cost of use and reduces their practicality and applicability. At the same time, the assembly process is complicated and the work efficiency is low.
It adopts a telescopic and foldable design, and the width can be adjusted by sliding telescopic rods and snap-fit rods. The assembly process is simplified by using connecting gears and gear rings.
It enables flexible adjustment of fence width, reduces usage costs, improves practicality and applicability, simplifies the assembly process, and improves work efficiency.
Smart Images

Figure CN224583950U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fencing, and in particular to a retractable and foldable pet dog fence. Background Technology
[0002] A search of Chinese patents revealed publication number CN221241202U, a pet fence belonging to the field of pet supplies technology, comprising multiple fence panels connected in a rotatable manner. Each fence panel has a retainer at its top, and a retaining block is detachably connected to every two adjacent retainers. Multiple first latches are rotatably connected to the longitudinal edge of any fence panel, and a second latch is rotatably connected to the hook portion of each first latch. The hook portions of the first and second latches are respectively engaged with the longitudinal edges of two adjacent fence panels. The retaining blocks secure the top of the fence panels, preventing the fence from rotating or deforming due to force or collision, thus improving fence stability. The retaining blocks can be removed from the top of the fence panels, and the hook portions of the first and second latches can be removed from the longitudinal edges of the fence, allowing the fence to be folded and stored easily and conveniently.
[0003] Existing fences are not adjustable in width; they are generally fixed in width. During use, the width can only be adjusted by adding or removing fence panels, which increases operating costs, reduces practicality and applicability, and is inconvenient to assemble. While most fences are modular, they are usually bolted together, requiring tools for assembly and disassembly, which is cumbersome, increases workload, and reduces efficiency. To address these issues, we propose a retractable and foldable pet dog fence. Utility Model Content
[0004] The purpose of this invention is to provide a retractable and foldable pet dog fence, which has the advantages of adjustable width and easy assembly.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a retractable and foldable pet dog fence, including a first fixed post and a second fixed post. A fixed rod is bolted to the surface of the first fixed post. A telescopic rod is slidably sleeved on the inner wall of the fixed rod, and one end of the telescopic rod is bolted to the surface of the second fixed post. A sliding rod is slidably sleeved on the inner wall of the fixed post. An adjustment hole is opened on the surface of the telescopic rod, and the adjustment hole is engaged with one end of the sliding rod. A locking rod is slidably sleeved on the inner wall of the fixed post. A first limiting plate is fixedly sleeved on the surface of the locking rod. A first spring is provided between the first limiting plate and the inner wall of the fixed post. A locking hole is opened on the surface of the sliding rod, and the locking hole is engaged with one end of the locking rod.
[0006] By adopting the above technical solution, the locking rod is disengaged from the locking hole by moving the pull block, and the sliding rod is disengaged from the adjustment hole under the action of the fourth spring. The required width of the fence adjustment device is achieved by moving the sliding rod to engage the fixed rod with the adjustment hole, and the locking rod is engaged with the locking hole under the action of the first spring. This fixed method can achieve the purpose of adjusting the width, reduce the cost of use, and improve practicality and applicability.
[0007] The present invention is further configured such that: a connecting toothed ring is bolted to the surface of the first fixed column; a pull rod is slidably sleeved on the inner wall of the second fixed column; an L-shaped rod is bolted to the surface of the pull rod; a connecting gear is fixedly sleeved on the surface of the L-shaped rod, and the connecting gear and the connecting toothed ring are adapted to each other; a second limiting plate is fixedly sleeved on the surface of the pull rod; a partition is slidably sleeved on the surface of the pull rod; a second spring is sleeved on the surface of the pull rod, and the second spring is located between the second limiting plate and the partition; a third spring is sleeved on the surface of the pull rod, and the third spring is located between the partition and the inner wall of the second fixed column, and the elastic force of the third spring is less than that of the second spring.
[0008] By adopting the above technical solution, the connecting gear is raised by moving the pull rod, and then the connecting gear ring is installed into the second fixed column. The pull rod is then released to allow the connecting gear to enter the connecting gear ring and fix it in place. This method facilitates assembly, reduces workload, and improves work efficiency.
[0009] The present invention is further configured such that a fourth spring is sleeved on the surface of the slide rod.
[0010] By adopting the above technical solution, a fourth spring is provided to facilitate the disengagement of the slide rod from the adjustment hole, making it convenient to adjust the width.
[0011] The present invention is further configured such that one end of the snap-fit rod is wedge-shaped.
[0012] By adopting the above technical solution, one end of the locking rod is wedge-shaped, which facilitates the fixing of the slide rod.
[0013] The present invention is further configured such that a pull block is bolted to one end of the locking rod.
[0014] By adopting the above technical solution, the locking rod can be easily moved by setting a pull block.
[0015] The present invention is further configured such that a telescopic stop bar is bolted between the first fixed column and the second fixed column.
[0016] By adopting the above technical solution and setting telescopic barriers, the protective effect of the fence can be improved.
[0017] The present invention is further configured such that anti-slip pads are adhered to the bottom of the first fixing column and the second fixing column.
[0018] By adopting the above technical solution, anti-slip mats are installed to prevent the fence from sliding and improve its stability.
[0019] The present invention is further configured such that a pull plate is bolted to the top of the pull rod.
[0020] By adopting the above technical solution, the pull plate is set to facilitate the movement of the pull rod.
[0021] In summary, this utility model has the following beneficial effects:
[0022] 1. This utility model uses a movable pull block to disengage the locking rod from the locking hole, and the sliding rod disengages from the adjustment hole under the action of the fourth spring. The required width of the fence adjustment device is achieved by moving the sliding rod to engage the fixed rod with the adjustment hole, and the locking rod engages with the locking hole under the action of the first spring. This fixed method can achieve the purpose of adjusting the width, reduce the cost of use, and improve practicality and applicability.
[0023] 2. This utility model uses a moving pull rod to raise the connecting gear, then inserts the connecting gear ring into the second fixed column, and releases the pull rod to allow the connecting gear to enter the connecting gear ring and fix it in place. This method facilitates assembly, reduces workload, and improves work efficiency. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural view of the present invention;
[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0026] Figure 3 This is a perspective view of the connecting gear structure of this utility model;
[0027] Figure 4 This is a perspective view of the connecting toothed ring structure of this utility model;
[0028] Figure 5 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle;
[0029] Figure 6 This is a utility model Figure 2 Enlarged view of the structure at point B in the middle;
[0030] Figure 7 This is a diagram illustrating the assembly and usage effect of the structure of this utility model.
[0031] Reference numerals in the attached drawings: 1. First fixed post; 2. Second fixed post; 3. Fixed rod; 4. Telescopic rod; 5. Slide rod; 6. Adjustment hole; 7. Snap-fit rod; 8. First limiting plate; 9. First spring; 10. Snap-fit hole; 11. Connecting gear ring; 12. Pull rod; 13. L-shaped rod; 14. Connecting gear; 15. Second limiting plate; 16. Partition plate; 17. Second spring; 18. Third spring; 19. Fourth spring; 20. Pull block; 21. Telescopic stop bar; 22. Anti-slip pad; 23. Pull plate. Detailed Implementation
[0032] The present invention will be further described in detail below with reference to the accompanying drawings.
[0033] Example 1:
[0034] refer to Figure 1 , Figure 2 and Figure 5 A retractable and foldable pet dog fence includes a first fixed post 1 and a second fixed post 2. A fixed rod 3 is bolted to the surface of the first fixed post 1. A telescopic rod 4 is slidably sleeved on the inner wall of the fixed rod 3, and one end of the telescopic rod 4 is bolted to the surface of the second fixed post 2. A sliding rod 5 is slidably sleeved on the inner wall of the fixed rod 3. An adjustment hole 6 is provided on the surface of the telescopic rod 4, and the adjustment hole 6 is engaged with one end of the sliding rod 5. A locking rod 7 is slidably sleeved on the inner wall of the fixed rod 3. A first limiting plate 8 is fixedly sleeved on the surface of the locking rod 7. The first limiting plate 8 and the inner wall of the fixed rod 3 are... A first spring 9 is provided, and a snap-fit hole 10 is opened on the surface of the slide rod 5. The snap-fit hole 10 is snapped with one end of the snap-fit rod 7. By moving the pull block 20, the snap-fit rod 7 is disengaged from the snap-fit hole 10. Under the action of the fourth spring 19, the slide rod 5 is disengaged from the adjustment hole 6. The width of the fence adjustment device is adjusted by moving the slide rod 5 so that the fixed rod 3 is snapped with the adjustment hole 6. Under the action of the first spring 9, the snap-fit rod 7 is snapped with the snap-fit hole 10. This fixed method can achieve the purpose of adjusting the width, reduce the cost of use, and improve practicality and applicability.
[0035] refer to Figure 5 A fourth spring 19 is fitted on the surface of the slide rod 5. By setting the fourth spring 19, it is easy to disengage the slide rod 5 from the adjustment hole 6, so as to facilitate the adjustment of the width.
[0036] refer to Figure 5 One end of the locking rod 7 is wedge-shaped, which facilitates the fixing of the slide rod 5.
[0037] refer to Figure 5 One end of the locking rod 7 is bolted with a pull block 20, which facilitates the movement of the locking rod 7.
[0038] Example 2:
[0039] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 A connecting toothed ring 11 is bolted to the surface of the first fixed post 1. A pull rod 12 is slidably sleeved on the inner wall of the second fixed post 2. An L-shaped rod 13 is bolted to the surface of the pull rod 12. A connecting gear 14 is fixedly sleeved on the surface of the L-shaped rod 13, and the connecting gear 14 and the connecting toothed ring 11 are compatible. A second limiting plate 15 is fixedly sleeved on the surface of the pull rod 12. A partition plate 16 is slidably sleeved on the surface of the pull rod 12. A second spring 17 is sleeved on the surface of the pull rod 12, and the second spring 17 is located between the second limiting plate 15 and the partition plate. Between 16, a third spring 18 is sleeved on the surface of the pull rod 12, and the third spring 18 is located between the inner walls of the partition 16 and the second fixed column 2. The elastic force of the third spring 18 is less than that of the second spring 17. By moving the pull rod 12, the connecting gear 14 is raised, and then the connecting gear ring 11 is installed into the second fixed column 2. The pull rod 12 is released to allow the connecting gear 14 to enter the connecting gear ring 11 and fix it. This method can facilitate assembly, reduce workload, and improve work efficiency.
[0040] refer to Figure 1 and Figure 2 A telescopic barrier 21 is bolted between the first fixed post 1 and the second fixed post 2. By setting the telescopic barrier 21, the protective effect of the fence is improved.
[0041] refer to Figure 1 and Figure 2 The bottom of the first fixed post 1 and the second fixed post 2 are glued with anti-slip pads 22. By setting the anti-slip pads 22, the fence is prevented from sliding and its stability is improved.
[0042] refer to Figure 1 and Figure 2 A pull plate 23 is bolted to the top of the pull rod 12, which facilitates the movement of the pull rod 12.
[0043] Brief description of the usage process: Move the pull block 20. The movement of the pull block 20 causes the locking rod 7 to move, disengaging it from the locking hole 10. Under the action of the fourth spring 19, the slide rod 5 disengages from the adjustment hole 6. After moving the second fixing post 2 to the desired position, move the slide rod 5 so that it engages with the adjustment hole 6 and is fixed. Then, under the action of the first spring 9, the locking rod 7 engages with the locking hole 10, fixing the slide rod 5 and completing the adjustment, thereby achieving the purpose of adjusting the width. Figure 7During assembly, the pull plate 23 is moved, which in turn moves the pull rod 12, which in turn moves the L-shaped rod 13, which in turn moves the connecting gear 14. Then, the connecting toothed ring 11 on the other fence is inserted into the second fixed post 2. The pull plate 23 is released, and the pull rod 12, under the action of the second spring 17 and the third spring 18, moves the L-shaped rod 13 back to its original position. The L-shaped rod 13's return to its original position causes the connecting gear 14 to return to its original position, which in turn causes the connecting gear 14 to enter the connecting toothed ring 11 and fix it in place, thus completing the assembly and facilitating the assembly process. By moving the pull plate 23, the pull rod 12 causes the third spring 18 to retract, and the connecting gear 14 moves upward and disengages from the connecting toothed ring 11. This allows for adjustment of the fence's current angle and folding of the fence. On this basis, increasing the pulling force causes the second spring 17 to retract, causing the connecting gear 14 to disengage from the connecting toothed ring 11, allowing the fence to be removed and disassembled.
[0044] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A retractable folding pet dog enclosure comprising a first fixed post (1) and a second fixed post (2), characterized in that, A fixing rod (3) is bolted to the surface of the first fixing post (1). A telescopic rod (4) is slidably sleeved on the inner wall of the fixing rod (3), and one end of the telescopic rod (4) is bolted to the surface of the second fixing post (2). A sliding rod (5) is slidably sleeved on the inner wall of the fixing rod (3). An adjustment hole (6) is opened on the surface of the telescopic rod (4), and the adjustment hole (6) is engaged with one end of the sliding rod (5). A locking rod (7) is slidably sleeved on the inner wall of the fixing rod (3). A first limiting plate (8) is fixedly sleeved on the surface of the locking rod (7). A first spring (9) is provided between the first limiting plate (8) and the inner wall of the fixing rod (3). A locking hole (10) is opened on the surface of the sliding rod (5), and the locking hole (10) is engaged with one end of the locking rod (7).
2. A collapsible and foldable pet dog playpen according to claim 1, wherein, A connecting toothed ring (11) is bolted to the surface of the first fixed post (1). A pull rod (12) is slidably sleeved on the inner wall of the second fixed post (2). An L-shaped rod (13) is bolted to the surface of the pull rod (12). A connecting gear (14) is fixedly sleeved on the surface of the L-shaped rod (13), and the connecting gear (14) and the connecting toothed ring (11) are compatible. A second limiting plate (15) is fixedly sleeved on the surface of the pull rod (12). A partition plate (16) is slidably sleeved on the surface of the pull rod (12). A second spring (17) is sleeved on the surface of the pull rod (12), and the second spring (17) is located between the second limiting plate (15) and the partition plate (16). A third spring (18) is sleeved on the surface of the pull rod (12), and the third spring (18) is located between the partition plate (16) and the inner wall of the second fixed post (2), and the elastic force of the third spring (18) is less than that of the second spring (17).
3. The collapsible and foldable pet dog playpen according to claim 1, wherein, A fourth spring (19) is fitted onto the surface of the slide bar (5).
4. The collapsible and foldable pet dog playpen according to claim 1, wherein, One end of the snap-fit rod (7) is wedge-shaped.
5. The collapsible and foldable pet dog playpen in accordance with claim 1, wherein, A pull block (20) is bolted to one end of the snap-fit rod (7).
6. The collapsible and foldable pet dog playpen in accordance with claim 1, wherein, A telescopic stop bar (21) is bolted between the first fixed post (1) and the second fixed post (2).
7. The collapsible and foldable pet dog playpen in accordance with claim 1, wherein, The bottom of the first fixing post (1) and the second fixing post (2) are bonded with anti-slip pads (22).
8. The collapsible and foldable pet dog playpen according to claim 2, wherein, A pull plate (23) is bolted to the top of the pull rod (12).