A quick fold portable fence

Abstract

The application relates to a quick folding portable fence and belongs to the technical field of safety protection fences. The structure of the fence comprises multiple groups of fence plates, the multiple groups of fence plates are connected in series to form a fence structure, adjacent fence plates are connected through hinges, both ends of the fence structure are hingedly connected with connecting columns, the connecting columns are rotationally provided with driving rings at the bottom, the connecting columns are provided with protection assemblies, the bottom of the protection assemblies abuts against the driving rings, one side of the protection assemblies abuts against the fence plates, the bottom of the connecting columns is provided with mounting cavities, the outer side of the bottom of the connecting columns is circumferentially provided with multiple groups of unfolding support units, the mounting cavities are provided with driving assemblies inside, the driving assemblies are provided with plug-in support units inside, the unfolding support units are connected with the driving assemblies inside the mounting cavities, and the application has the technical effect of adapting to different electric power construction ground conditions.

Description

Technical Field

[0001] This application relates to the technical field of security fencing, and in particular to a quick-folding portable fencing. Background Technology

[0002] Temporary isolation and warning measures are required for work areas at power construction sites. Quick-folding portable fences are widely used in power construction scenarios such as substation maintenance and line repair due to their convenient assembly, disassembly, transportation, and storage. They are formed by hinged assembly of multiple panels to quickly enclose the work area, thereby preventing unauthorized personnel from accidentally entering the live work area and ensuring on-site construction safety.

[0003] While existing quick-folding portable power construction fences can be folded and unfolded, they only have a single type of support structure, which cannot meet the needs of different construction site ground conditions such as hard ground and muddy ground. At the same time, the support mechanism lacks a protective locking structure that is linked to the opening and closing state of the fence, and the support components are prone to malfunction during transportation and folding.

[0004] Regarding the aforementioned technologies, the inventors believe that they suffer from the drawback of having a single support form that is difficult to adapt to different construction ground conditions. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a quick-folding portable fence.

[0006] This application provides a quick-folding portable fence, which adopts the following technical solution: A quick-folding portable fence includes multiple sets of enclosure panels; the multiple sets of enclosure panels are connected in series to form a fence structure, and adjacent enclosure panels are connected by hinges; each end of the fence structure is hinged with a connecting post; a drive ring is rotatably provided at the bottom of the connecting post, and a protective component is provided on the connecting post, the bottom of the protective component abutting against the drive ring, and one side of the protective component abutting against the enclosure panel; a mounting cavity is provided at the bottom of the connecting post, and multiple sets of unfolding support units are arranged circumferentially on the outer side of the bottom of the connecting post; a drive assembly is provided inside the mounting cavity, and a plug-in support unit is provided inside the drive assembly; the unfolding support unit is connected to the drive assembly inside the mounting cavity.

[0007] By adopting the above technical solution, a fence structure is formed by connecting multiple sets of enclosure panels in series, and hinges are used to achieve rotational cooperation between adjacent enclosure panels. The fence structure is hinged to connecting columns at both ends, enabling the overall fence to be quickly unfolded and folded for storage, resulting in high portability. By rotating a drive ring at the bottom of the connecting column and installing a matching protective component, the protective component engages with the drive ring and enclosure panel respectively. The drive ring is automatically unlocked and locked according to the unfolded and folded state of the enclosure panel, effectively preventing the drive ring from accidentally rotating and causing the support structure to fail when not in operation. By setting an installation cavity at the bottom of the connecting column, the unfolding support unit adapted to hard ground and the plug-in support unit adapted to muddy or soft ground are integrated and arranged, and controlled by the same set of drive components. The structure has a high degree of integration and a compact layout, effectively reducing the overall space occupied. The appropriate support method can be selected according to the site ground conditions, improving the adaptability and ease of operation of the fence.

[0008] Preferably, the unfolding support unit includes a support rod and a gear transmission mechanism; multiple sets of drive grooves are circumferentially opened at the lower part of the connecting column, and the gear transmission mechanism in one set of the unfolding support units is rotatably arranged in one set of drive grooves; the gear transmission mechanism includes a drive gear and an auxiliary gear, both of which are rotatably arranged in the drive grooves and mesh with each other; one end of the support rod is fixedly arranged on the drive gear.

[0009] By adopting the above technical solution, multiple sets of drive grooves are opened circumferentially at the lower part of the connecting column, and the gear transmission mechanism is rotatably arranged inside the drive grooves. The drive gear and the auxiliary gear mesh with each other to form a gear transmission mechanism, which stably transmits power. The support rod is fixedly set on the drive gear. The rotation of the gear transmission mechanism drives the support rod to swing, unfold and retract. The unfolded support unit acts on the hard ground to realize the ground support of the fence. The multiple sets of unfolded support units are arranged circumferentially, which can support the connecting column from multiple directions, greatly improving the overall support balance and anti-tipping ability of the fence after it is erected under hard ground conditions.

[0010] Preferably, the drive assembly includes a drive sleeve and multiple sets of racks. The drive sleeve is slidably disposed in the mounting cavity, and the multiple sets of racks are circumferentially fixedly disposed on the upper part of the drive sleeve. The multiple sets of racks respectively mesh with multiple sets of auxiliary gears. The bottom of the drive sleeve is provided with mating threads.

[0011] By adopting the above technical solution, the drive sleeve is slidably set in the mounting cavity to ensure the straightness and stability of the longitudinal movement of the drive sleeve; by fixing multiple sets of racks circumferentially on the upper part of the drive sleeve, and making the multiple sets of racks mesh with multiple sets of auxiliary gears one by one, the single set of drive sleeves can synchronously drive multiple sets of gear transmission mechanisms to move synchronously, ensuring the consistency of the unfolding and retracting actions of each set of support rods; the bottom of the drive sleeve is provided with mating threads to provide a structural basis for threaded transmission and realize the stable conversion of rotational motion to linear motion.

[0012] Preferably, the inner ring of the drive ring is provided with a drive thread, and the drive thread is connected to the mating thread.

[0013] By adopting the above technical solution, the driving thread of the inner ring of the drive ring and the mating thread at the bottom of the drive sleeve cooperate with each other to form a threaded transmission pair, which smoothly converts the rotational motion of the drive ring into the longitudinal linear sliding of the drive sleeve. This controls the working stroke of the unfolding support unit and the insertion support unit respectively, meeting the usage requirements of hard ground support and muddy ground and soft ground insertion and fixing, ensuring the stability of the support structure and effectively avoiding problems such as transmission loosening and displacement deviation.

[0014] Preferably, the insertion support unit includes an insertion rod, one end of which is slidably disposed in the mounting cavity; first wedges are respectively disposed on both sides of the upper part of the insertion rod; a fixing ring is fixedly disposed in the mounting cavity, and the other end of the insertion rod extends into the drive sleeve through the middle of the fixing ring; abutment structures are respectively disposed on both sides of the fixing ring, and the abutment structures abut against the first wedge on one side of the insertion rod.

[0015] By adopting the above technical solution, one end of the insertion rod is slidably set in the installation cavity, and the other end extends through the middle of the fixing ring into the inside of the drive sleeve. The fixing ring forms an axial limit and guide constraint on the insertion rod, ensuring the coaxiality of the insertion rod's extension and retraction, and avoiding jamming and skew. By setting the first wedge on both sides of the upper part of the insertion rod, and forming an abutment cooperation with the abutment structure on both sides of the fixing ring, the force is reversed and transmitted by relying on the wedge surface transmission. The axial displacement power of the drive sleeve is stably converted into the extension and retraction power of the insertion rod. After the insertion support unit extends, it can penetrate into soft ground such as muddy soil to achieve insertion and anchoring. In conjunction with the unfolding support unit adapted to hard ground, the device can adapt to different ground conditions and improve the firmness of the fence's ground fixation.

[0016] Preferably, the abutting structure includes a guide rod, a second wedge, and a third wedge; the guide rod extends longitudinally through the fixing ring, and the fixing ring is slidably connected to the guide rod; the second wedge is fixedly disposed on the top of the guide rod, and the third wedge is slidably disposed laterally in the mounting cavity, with the wedge surface of the second wedge abutting against one end of the third wedge, and the other end of the third wedge abutting against the wedge surface of the first wedge.

[0017] By adopting the above technical solution, the guide rod longitudinally penetrates the fixed ring and slides through the fixed ring, guiding and limiting the longitudinal movement of the guide rod to ensure stable and reliable transmission. Through the step-by-step wedge contact of the second wedge, the third wedge, and the first wedge, the longitudinal movement of the guide rod is converted into the lateral sliding of the third wedge, and then into the longitudinal extension and retraction of the insertion rod, realizing multi-directional power reversing transmission. This can match the action of the drive component, ensuring that the insertion support unit completes the insertion and anchoring action on muddy, soil, and soft ground, and can work in tandem with the deployment support unit to adapt to different ground conditions.

[0018] Preferably, the protective component includes a protective ring, the interior of which is a protective cavity. A protective opening is provided at the bottom of the protective ring, and an unlocking groove is provided on one side of the protective ring. A rotating ring is rotatably disposed within the protective cavity, and a protective rod is provided on one side of the rotating ring. The protective rod extends outward from the protective ring through the unlocking groove and abuts against the surrounding plate. A torsion spring is sleeved on the rotating ring, with one end of the torsion spring fixedly disposed on the protective ring and the other end fixedly disposed on the protective rod. A top-fitting mechanism is provided at the bottom of the rotating ring.

[0019] By adopting the above technical solution, the protective cavity inside the protective ring provides protection for the internal rotating structure. The protective opening and unlocking groove are respectively adapted to the extension and retraction of the limit pin and the swinging action of the protective rod, resulting in high structural adaptability. Utilizing the abutment cooperation between the protective rod and the enclosure plate, and the elastic reset characteristics of the torsion spring, the rotation unlocking and reset locking of the rotating ring are adaptively completed according to the unfolded and folded state of the enclosure plate. This achieves linkage protection and locking of the drive ring, preventing misoperation and vibration from causing the drive ring to loosen due to self-rotation. It also prevents the unfolding support unit on hard ground and the insertion support unit on muddy or soft ground from unexpectedly failing, effectively improving the safety and stability of the device.

[0020] Preferably, the top-connecting mechanism includes a top-connecting spring and a limiting pin. The limiting pin is slidably disposed on the rotating ring, and the top-connecting spring is sleeved on the limiting pin. One end of the top-connecting spring is fixedly disposed on the rotating ring, and the other end of the top-connecting spring is fixedly disposed on the limiting pin.

[0021] By adopting the above technical solution, the limiting pin is slidably set on the rotating ring, and the top spring is sleeved on the outside of the limiting pin and fixed at both ends to the rotating ring and the limiting pin respectively. The continuous elastic force of the top spring drives the limiting pin to press down and press against the drive ring. The driving ring is stably locked by the contact friction force, and the locking effect is reliable. The structure is simple and compact, and the locking and unlocking states are switched synchronously with the rotating ring.

[0022] Preferably, the enclosure is provided with a locking structure, which includes a locking hole, a locking pin, a locking spring, a sliding hole, and an unlocking pin. The sliding hole is located on one side of the enclosure, the locking pin is slidably disposed within the sliding hole, the locking spring is disposed within the sliding hole, one end of the locking spring is fixedly disposed on the sliding hole, and the other end of the locking spring is fixedly disposed on the locking pin. The locking hole is located on the other side of the enclosure, and the position of the locking hole corresponds to the position of the sliding hole. An unlocking port is provided on the enclosure, which communicates with the sliding hole. The unlocking pin is slidably disposed within the unlocking port, which penetrates the enclosure. A wedge-shaped notch is provided on the locking pin, and the unlocking pin abuts against the wedge-shaped notch of the locking pin.

[0023] By adopting the above technical solution, the sliding hole, locking pin, and locking spring work together to automatically push the locking pin into the locking hole by the elastic force of the locking spring, thereby achieving automatic alignment and locking of adjacent panels. The unlocking port connects to the sliding hole, and the wedge of the unlocking pin and the locking pin abuts together. The locking pin can be quickly retracted and unlocked by pressing the unlocking pin, and the fence can be folded and unlocked with one click, resulting in high folding and storage efficiency.

[0024] Preferably, a foot brace is fixedly provided at the other end of the support rod.

[0025] By adopting the above technical solutions, the contact area between the support rod and the hard ground is increased, the support pressure is reduced, and the support rod is effectively prevented from slipping on the hard ground. This significantly improves the stability and anti-slip capability of the deployed support unit under hard ground conditions. In conjunction with the plug-in support unit for muddy or soft ground, the ground application scenarios of the fence are broadened, and the wind resistance and anti-tipping performance of the fence after it is erected are further enhanced.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By opening multiple sets of drive grooves circumferentially at the lower part of the connecting column, the gear transmission mechanism is rotatably arranged inside the drive grooves. The drive gear and the auxiliary gear mesh with each other to form a gear transmission mechanism, which stably transmits power. The support rod is fixedly set on the drive gear. The rotation of the gear transmission mechanism drives the support rod to swing, unfold and retract. The unfolded support unit acts on the hard ground to realize the ground support of the fence. The multiple sets of unfolded support units are arranged circumferentially, which can support the connecting column from multiple directions, greatly improving the overall support balance and anti-tipping ability of the fence after it is erected under hard ground conditions.

[0027] 2. One end of the insertion rod is slidably placed inside the installation cavity, while the other end extends through the middle of the fixing ring into the drive sleeve. The fixing ring provides axial limiting and guiding constraints for the insertion rod, ensuring the coaxiality of its extension and retraction and preventing jamming or skew. By setting first wedges on both sides of the upper part of the insertion rod and forming abutment cooperation with the abutment structure on both sides of the fixing ring, the force is reversed and transmitted through the wedge surface transmission. The axial displacement power of the drive sleeve is stably converted into the extension and retraction power of the insertion rod. After the insertion support unit extends, it can penetrate into soft ground such as muddy soil to achieve insertion and anchoring. In conjunction with the unfolding support unit adapted to hard ground, the device can adapt to different ground conditions and improve the firmness of the fence's ground fixation. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0029] Figure 2 yes Figure 1 A magnified view of part A in the middle.

[0030] Figure 3 yes Figure 1 A magnified view of part B in the middle.

[0031] Figure 4 yes Figure 1 A magnified view of part C in the middle.

[0032] Figure 5 This is a cross-sectional schematic diagram of the internal structure of the mounting cavity in the embodiment.

[0033] Figure 6 yes Figure 5 A magnified view of part D in the middle.

[0034] Figure 7 This is a schematic diagram of the locking structure in the enclosure in the embodiment.

[0035] Explanation of reference numerals in the attached drawings: 1. Enclosure panel; 11. Fence structure; 2. Connecting post; 21. Drive ring; 211. Drive thread; 22. Mounting cavity; 23. Drive groove; 3. Protective component; 31. Protective ring; 311. Protective cavity; 312. Protective opening; 313. Unlocking groove; 32. Rotating ring; 33. Protective rod; 34. Torsion spring; 35. Top-connecting mechanism; 351. Top-connecting spring; 352. Limiting pin; 4. Deployment support unit; 41. Support rod; 411. Foot brace; 42. Gear transmission mechanism 421. Drive gear; 422. Auxiliary gear; 5. Drive assembly; 51. Drive sleeve; 511. Mating thread; 52. Rack; 6. Insertion support unit; 61. Insertion rod; 62. First wedge; 63. Fixing ring; 64. Abutment structure; 641. Guide rod; 642. Second wedge; 643. Third wedge; 7. Locking structure; 71. Locking hole; 72. Locking pin; 721. Wedge opening; 73. Locking spring; 74. Sliding hole; 75. Unlocking pin; 76. Unlocking port. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0037] This application discloses a quick-folding portable fence. (See also...) Figure 1 and Figure 5 The enclosure includes multiple sets of enclosure panels 1; the multiple sets of enclosure panels 1 are connected in series to form an enclosure structure 11, and adjacent enclosure panels 1 are connected by hinges; connecting posts 2 are hinged to both ends of the enclosure structure 11; a drive ring 21 is rotatably provided at the bottom of the connecting post 2, and a protective component 3 is provided on the connecting post 2, the bottom of the protective component 3 abuts against the drive ring 21, and one side of the protective component 3 abuts against the enclosure panel 1; an installation cavity 22 is provided at the bottom of the connecting post 2, and multiple sets of unfolding support units 4 are provided circumferentially on the outer side of the bottom of the connecting post 2; a drive component 5 is provided inside the installation cavity 22, and a plug-in support unit 6 is provided inside the drive component 5; the unfolding support unit 4 is connected to the drive component 5 inside the installation cavity 22.

[0038] Reference Figure 1 and Figure 5Multiple sets of enclosure panels 1 are connected in series to form a fence structure 11. Adjacent enclosure panels 1 can rotate relative to each other by hinges. Both ends of the fence structure 11 are hinged to connecting posts 2, allowing the enclosure panels 1 to rotate relative to the connecting posts 2, thus realizing the unfolding and folding action of the fence structure 11. A drive ring 21 is rotatably provided at the bottom of the connecting post 2. A protective component 3 is installed on the connecting post 2. The bottom of the protective component 3 abuts against the drive ring 21, and one side of the protective component 3 abuts against the enclosure panel 1. When the enclosure panel 1 is in the folded state, the enclosure panel 1 forms a positional constraint on the protective component 3. The protective component 3 also applies abutment limit to the drive ring 21, preventing the drive ring 21 from rotating unexpectedly. An installation cavity 22 is provided at the bottom of the connecting post 2, and multiple sets of unfolding support units 4 are arranged circumferentially on the outer side of the bottom of the connecting post 2. The drive assembly 5 is arranged inside the mounting cavity 22, and the insertion support unit 6 is set inside the drive assembly 5. The unfolding support unit 4 is connected to the drive assembly 5 inside the mounting cavity 22. When the drive ring 21 is rotated, the drive ring 21 transmits the rotational motion to the drive assembly 5. The drive assembly 5 generates a corresponding motion output inside the mounting cavity 22. The drive assembly 5 drives multiple sets of unfolding support units 4 to move synchronously, so as to realize the support of the unfolding support units 4. When the drive ring 21 is rotated in the opposite direction, the drive assembly 5 drives the insertion support unit 6 inside it to extend and insert. When the enclosure 1 is in the unfolded state, the enclosure 1 abuts against the protection assembly 3, so that the protection assembly 3 releases the limiting constraint on the drive ring 21, and the drive ring 21 can be rotated.

[0039] Reference Figure 1 and Figure 3 The unfolding support unit 4 includes a support rod 41 and a gear transmission mechanism 42; multiple sets of drive grooves 23 are circumferentially opened at the lower part of the connecting column 2, and the gear transmission mechanism 42 in one set of unfolding support units 4 is rotatably disposed in one set of drive grooves 23; the gear transmission mechanism 42 includes a drive gear 421 and an auxiliary gear 422, both of which are rotatably disposed in the drive grooves 23 and mesh with each other; one end of the support rod 41 is fixedly disposed on the drive gear. On wheel 421; drive assembly 5 includes drive sleeve 51 and multiple sets of racks 52. Drive sleeve 51 is slidably disposed in mounting cavity 22. Multiple sets of racks 52 are circumferentially fixedly disposed on the upper part of drive sleeve 51. Multiple sets of racks 52 respectively mesh with multiple sets of auxiliary gears 422. The bottom of drive sleeve 51 is provided with mating thread 511. The inner ring of drive ring 21 is provided with drive thread 211, and drive thread 211 is connected with mating thread 511. The other end of support rod 41 is fixedly provided with foot support 411.

[0040] Reference Figure 1 and Figure 3The drive ring 21 engages with the mating thread 511 at the bottom of the drive sleeve 51 via the drive thread 211 on its inner ring, converting its rotational motion into longitudinal sliding motion of the drive sleeve 51 within the mounting cavity 22. Multiple sets of racks 52 are circumferentially fixed to the upper part of the drive sleeve 51. These racks 52 move longitudinally synchronously with the drive sleeve 51, and each set meshes with a corresponding auxiliary gear 422, driving the auxiliary gear 422 to rotate within the circumferential drive groove 23 at the lower part of the connecting column 2. The auxiliary gear 422 meshes with the drive gear 421; when the auxiliary gear 422 rotates, it drives the drive gear 421 to rotate synchronously within the drive groove 23. The support rod 41 fixed to the drive gear 421 moves with the drive gear. When gear 421 rotates synchronously and unfolds, the foot support 411 fixed at the end of the support rod 41 extends outward to provide support. When the drive ring 21 rotates in the opposite direction, the drive sleeve 51 slides in the opposite direction, causing the rack 52 to move in the opposite direction. This drives the auxiliary gear 422 and the drive gear 421 to rotate in the opposite direction in sequence, thereby causing the support rod 41 to retract inward and complete the retraction and reset of the support structure. The rack 52 has a specific length. During the upward movement of the drive sleeve 51, the rack 52 moves upward synchronously with the drive sleeve 51. The specific length of the rack 52 limits the meshing stroke between the rack 52 and the auxiliary gear 422, thereby limiting the rotation angle of the auxiliary gear 422 and preventing the gear transmission mechanism 42 from continuing to rotate and causing the support rod 41 to be over-tightened.

[0041] Reference Figure 1 and Figure 5 The insertion support unit 6 includes an insertion rod 61, one end of which is slidably disposed within the mounting cavity 22; first wedges 62 are respectively disposed on both sides of the upper part of the insertion rod 61; a fixing ring 63 is fixedly disposed within the mounting cavity 22, and the other end of the insertion rod 61 extends into the drive sleeve 51 through the middle of the fixing ring 63; abutment structures 64 are respectively disposed on both sides of the fixing ring 63, and the abutment structures 64 abut against the first wedges 62 on one side of the insertion rod 61; the abutment structure 64 includes a guide rod 641, a second wedge 642, and a third wedge 643; the guide rod 641 longitudinally passes through the fixing ring 63, and the fixing ring 63 is slidably connected to the guide rod 641; the second wedge 642 is fixedly disposed on the top of the guide rod 641, and the third wedge 643 is slidably disposed laterally within the mounting cavity 22, with the wedge surface of the second wedge 642 abutting against one end of the third wedge 643, and the other end of the third wedge 643 abutting against the wedge surface of the first wedge 62.

[0042] Reference Figure 1 and Figure 5When the drive ring 21 rotates, it drives the drive sleeve 51 to move axially within the mounting cavity 22 via the threaded joint. Reverse rotation of the drive ring 21 causes the drive sleeve 51 to move upward. The top of the drive sleeve 51 abuts against the guide rod 641 and pushes the guide rod 641 upward. The guide rod 641 slides relative to the fixed ring 63 along the longitudinal direction. The second wedge 642 fixed at the top of the guide rod 641 moves upward synchronously with the guide rod 641. The wedge surface of the second wedge 642 abuts against and pushes the third wedge 643, causing the third wedge 643 to slide laterally within the mounting cavity 22. The other end of the third wedge 643 abuts against the first wedge 62 through its wedge surface. During the lateral movement of the third wedge 643, it applies a downward wedge-shaped push to the first wedge 62. When the first wedge 62 drives the insertion rod 61 to slide within the mounting cavity 22, the insertion rod 61 extends into the drive sleeve 51 through the middle of the fixing ring 63, while one end of the insertion rod 61 slides down from the mounting cavity 22 to achieve the insertion action. When the drive ring 21 is rotated in the forward direction, the drive sleeve 51 moves downward, and the top of the drive sleeve 51 disengages from the abutment of the guide rod 641. A spring is sleeved on the guide rod 641, and the guide rod 641 resets downward by the elastic force of the spring. The second wedge 642 moves down synchronously with the guide rod 641, releasing the compression on the third wedge 643. The third wedge 643 resets laterally, eliminating the wedge surface thrust on the first wedge 62. The insertion rod 61 slides upward and retracts within the mounting cavity 22, completing the reset of the insertion support unit 6.

[0043] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6 The protective component 3 includes a protective ring 31, the interior of which is a protective cavity 311. A protective opening 312 is provided at the bottom of the protective ring 31, and an unlocking groove 313 is provided on one side of the protective ring 31. A rotating ring 32 is rotatably mounted inside the protective cavity 311. A protective rod 33 is provided on one side of the rotating ring 32, extending outwards through the unlocking groove 313 and abutting against the surrounding plate 1. A torsion spring 34 is fitted onto the rotating ring 32. 4 One end is fixedly mounted on the protective ring 31, and the other end of the torsion spring 34 is fixedly mounted on the protective rod 33; the bottom of the rotating ring 32 is provided with a top-connecting mechanism 35; the top-connecting mechanism 35 includes a top-connecting spring 351 and a limiting pin 352, the limiting pin 352 is slidably mounted on the rotating ring 32, and the top-connecting spring 351 is sleeved on the limiting pin 352; one end of the top-connecting spring 351 is fixedly mounted on the rotating ring 32, and the other end of the top-connecting spring 351 is fixedly mounted on the limiting pin 352.

[0044] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6The protective ring 31 of the protective component 3 forms a protective cavity 311 inside. A protective opening 312 is opened at the bottom of the protective ring 31, and an unlocking groove 313 is opened on one side of the protective ring 31. The rotating ring 32 is rotatably assembled inside the protective cavity 311. A protective rod 33 provided on one side of the rotating ring 32 extends to the outside of the protective ring 31 through the unlocking groove 313. The protective rod 33 can form an abutment fit with the surrounding plate 1. A torsion spring 34 is sleeved on the rotating ring 32. One end of the torsion spring 34 is fixed to the protective ring 31, and the other end of the torsion spring 34 is fixed to the protective rod 33. The torsion spring 34 continuously moves towards the protective ring 31. Rod 33 outputs preload force, driving the rotating ring 32 to maintain a predetermined rotational posture inside the protective cavity 311; a top-connecting mechanism 35 is provided at the bottom of the rotating ring 32, the top-connecting mechanism 35 includes a top-connecting spring 351 and a limiting pin 352, the limiting pin 352 is slidably disposed on the rotating ring 32, the top-connecting spring 351 is sleeved on the outside of the limiting pin 352, one end of the top-connecting spring 351 is fixedly disposed on the rotating ring 32, and the other end of the top-connecting spring 351 is fixedly disposed on the limiting pin 352, the top-connecting spring 351 continuously applies a downward elastic force to the limiting pin 352, and the limiting pin 352... 52 can extend downward through the protective opening 312 at the bottom of the protective ring 31. The lower end of the limiting pin 352 abuts against the drive ring 21. The limiting pin 352 presses against the drive ring 21 by the elastic force of the top spring 351. The frictional force of the abutment forms a rotation lock on the drive ring 21, preventing the drive ring 21 from rotating unexpectedly. When the enclosure 1 is unfolded into place, the enclosure 1 applies a lateral pushing force to the protective rod 33. The protective rod 33 swings through the unlocking groove 313, causing the rotating ring 32 to rotate inside the protective cavity 311 against the preload of the torsion spring 34. 2. The top-connecting mechanism 35 rotates synchronously, causing the limit pin 352 to rise. The limit pin 352 releases its pressure on the drive ring 21, releasing the rotation lock of the drive ring 21. At this time, the drive ring 21 can be rotated. When the enclosure 1 folds away from the protective rod 33, the lateral thrust of the enclosure 1 on the protective rod 33 disappears. The torsion spring 34 releases its preload, causing the protective rod 33 and the rotating ring 32 to rotate back to their original positions. The top-connecting spring 351 pushes the limit pin 352 downward through the protective opening 312 to press the drive ring 21, thus locking the rotation of the drive ring 21 again.

[0045] Reference Figure 1 , Figure 2 and Figure 7The enclosure 1 is provided with a locking structure 7, which includes a locking hole 71, a locking pin 72, a locking spring 73, a sliding hole 74, and an unlocking pin 75. The sliding hole 74 is located on one side of the enclosure 1. The locking pin 72 is slidably disposed in the sliding hole 74. The locking spring 73 is disposed in the sliding hole 74. One end of the locking spring 73 is fixedly disposed on the sliding hole 74, and the other end of the locking spring 73 is fixedly disposed on the locking pin 72. The locking hole 71 is located on the other side of the enclosure 1, and the position of the locking hole 71 corresponds to the position of the sliding hole 74. The enclosure 1 is provided with an unlocking port 76, which communicates with the sliding hole 74. The unlocking pin 75 is slidably disposed in the unlocking port 76, which penetrates the enclosure 1. The locking pin 72 is provided with a wedge 721, and the unlocking pin 75 abuts against the wedge 721 of the locking pin 72.

[0046] Reference Figure 1 , Figure 2 and Figure 7 A sliding hole 74 is provided on one side of the enclosure 1. A locking pin 72 is slidably disposed inside the sliding hole 74. A locking spring 73 is disposed inside the sliding hole 74, with one end of the locking spring 73 fixed to the sliding hole 74 and the other end fixed to the locking pin 72. Under normal conditions, the locking spring 73 continuously applies an extension force to the locking pin 72. A locking hole 71 is provided on the other side of the enclosure 1 and corresponds to the position of the sliding hole 74. A corresponding locking hole 71 is also provided on the connecting post 2. The enclosure 1 has an unlocking port 76 that communicates with the sliding hole 74 and penetrates the enclosure 1. The unlocking pin 75 is slidably fitted inside the unlocking port 76, and the locking pin 72 has a wedge 721 on its surface. The end of the unlocking pin 75 abuts against the wedge 721 of the locking pin 72. When the fence is unfolded and spliced, the two adjacent sets of fence panels 1 are aligned and fitted together. The locking pin 72 inside the sliding hole 74 slides outward under the elastic force of the locking spring 73 and extends into the corresponding locking hole 71 of the adjacent fence panel 1, thereby locking the position between the adjacent fence panels 1, restricting the rotation of the adjacent fence panels 1 relative to the hinge, and ensuring the overall stability of the overall fence structure 11 after unfolding. When the fence needs to be folded and stored, press the unlocking pin 75 to slide it inward along the unlocking opening 76. The unlocking pin 75 presses the wedge opening 721 of the locking pin 72. Through the contact of the wedge surface, the locking pin 72 is driven to overcome the elastic force of the locking spring 73 and retract in the sliding hole 74, so that the locking pin 72 exits the locking hole 71 and releases the locking constraint between the adjacent fence panels 1. At this time, the adjacent fence panels 1 can be folded and rotated relative to each other by the hinge. After the pressing pressure is released, the locking spring 73 rebounds and pushes the locking pin 72 to reset. At the same time, the wedge opening 721 pushes the unlocking pin 75 to slide outward and reset. The locking structure 7 returns to the initial locked state.

[0047] The working principle of the quick-folding portable fence in this application is as follows: During operation, multiple sets of enclosure panels 1 are unfolded by hinge rotation to form a fence structure 11. The enclosure panels 1 abut against the protective component 3, overcoming the preload of the torsion spring 34 and driving the rotating ring 32 to rotate, causing the limiting pin 352 of the top contact mechanism 35 to rise, releasing the rotation lock of the limiting pin 352 on the drive ring 21; rotating the drive ring 21, the drive ring 21 drives the drive sleeve 51 to slide longitudinally in the mounting cavity 22 by the thread transmission of the drive thread 211 and the mating thread 511, the drive sleeve 51 drives the rack 52 to move synchronously, the rack 52 meshes with the transmission auxiliary gear 422, and drives the support rod 41 to swing through the gear transmission mechanism 42, so that the foot support 411 extends outward to achieve support, the rack 52 relies on its specific length limitation and auxiliary The engagement stroke of the auxiliary gear 422 prevents the gear transmission mechanism 42 from continuing to rotate, causing the support rod 41 to be over-tightened. The reverse rotation of the drive ring 21 drives the sleeve 51 to move upward. The top of the drive sleeve 51 abuts against and pushes the guide rod 641 to move upward, causing the second wedge block 642 to move. Through the wedge surface transmission between the third wedge block 643 and the first wedge block 62, the insertion rod 61 is driven to slide downward to complete the insertion support. At the same time, the drive sleeve 51 moves upward to drive the rack 52 to move, driving the gear transmission mechanism 42 to move and causing the support rod 41 to retract inward. The forward rotation of the drive ring 21 drives the sleeve 51 to move downward to disengage from the guide rod 641. The guide rod 641 is reset under the action of the spring force. Each wedge block is released from compression in turn. The insertion rod 61 slides upward and retracts, and the insertion support unit 6 is released from insertion. During the unfolding and splicing of the fence, the locking spring 73 applies elastic force to the locking pin 72, and the locking pin 72 extends into the locking hole 71 to lock the adjacent fence panels 1, restricting the relative rotation of the fence panels 1 relative to the hinge; pressing the unlocking pin 75, the unlocking pin 75 squeezes the wedge 721 to drive the locking pin 72 to overcome the elastic force of the locking spring 73 and retract out of the locking hole 71, releasing the locking constraint between the fence panels 1, and the fence panels 1 can be folded; after the fence is folded, the fence panels 1 are separated from the protective component 3, the torsion spring 34 drives the protective rod 33 and the rotating ring 32 to rotate back to reset, the top spring 351 pushes the limit pin 352 downward to press the drive ring 21, relocking the drive ring 21 to prevent the drive ring 21 from rotating unexpectedly, the pressure on the unlocking pin 75 is released, the locking spring 73 drives the locking pin 72 to reset, the wedge 721 pushes the unlocking pin 75 outward to reset, and the locking structure 7 returns to the locked state.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-folding portable fence, characterized in that: The enclosure includes multiple sets of enclosure panels (1); the multiple sets of enclosure panels (1) are connected in series to form a fence structure (11), and adjacent enclosure panels (1) are connected by hinges; the fence structure (11) is hinged to two ends of a connecting column (2); a drive ring (21) is rotatably provided at the bottom of the connecting column (2), and a protective component (3) is provided on the connecting column (2), the bottom of the protective component (3) abuts against the drive ring (21), and one side of the protective component (3) abuts against the enclosure panel (1); an installation cavity (22) is provided at the bottom of the connecting column (2), and multiple sets of unfolding support units (4) are provided circumferentially on the outer side of the bottom of the connecting column (2); a drive component (5) is provided inside the installation cavity (22), and a plug-in support unit (6) is provided inside the drive component (5); the unfolding support unit (4) is connected to the drive component (5) inside the installation cavity (22).

2. The quick-folding portable fence according to claim 1, characterized in that: The unfolding support unit (4) includes a support rod (41) and a gear transmission mechanism (42); multiple sets of drive grooves (23) are opened circumferentially at the lower part of the connecting column (2), and the gear transmission mechanism (42) in one set of the unfolding support unit (4) is rotatably arranged in one set of drive grooves (23); the gear transmission mechanism (42) includes a drive gear (421) and an auxiliary gear (422), both of which are rotatably arranged in the drive groove (23), and the drive gear (421) and the auxiliary gear (422) mesh with each other; one end of the support rod (41) is fixedly arranged on the drive gear (421).

3. The quick-folding portable fence according to claim 2, characterized in that: The drive assembly (5) includes a drive sleeve (51) and multiple sets of racks (52). The drive sleeve (51) is slidably disposed in the mounting cavity (22). The multiple sets of racks (52) are circumferentially fixedly disposed on the upper part of the drive sleeve (51). The multiple sets of racks (52) respectively mesh with multiple sets of auxiliary gears (422). The bottom of the drive sleeve (51) is provided with a mating thread (511).

4. A quick-folding portable fence according to claim 3, characterized in that: The inner ring of the drive ring (21) is provided with a drive thread (211), which is connected to the mating thread (511).

5. A quick-folding portable fence according to claim 3, characterized in that: The insertion support unit (6) includes an insertion rod (61), one end of which is slidably disposed in the mounting cavity (22); first wedges (62) are respectively disposed on both sides of the upper part of the insertion rod (61); a fixing ring (63) is fixedly disposed in the mounting cavity (22), and the other end of the insertion rod (61) extends into the drive sleeve (51) through the middle of the fixing ring (63); abutting structures (64) are respectively disposed on both sides of the fixing ring (63), and the abutting structures (64) abut against the first wedges (62) on one side of the insertion rod (61).

6. A quick-folding portable fence according to claim 5, characterized in that: The abutment structure (64) includes a guide rod (641), a second wedge (642), and a third wedge (643); the guide rod (641) extends longitudinally through the fixing ring (63), and the fixing ring (63) is slidably connected to the guide rod (641); the second wedge (642) is fixedly disposed on the top of the guide rod (641), and the third wedge (643) is slidably disposed laterally in the mounting cavity (22); the wedge surface of the second wedge (642) abuts against one end of the third wedge (643), and the other end of the third wedge (643) abuts against the wedge surface of the first wedge (62).

7. A quick-folding portable fence according to claim 1, characterized in that: The protective component (3) includes a protective ring (31), the inside of which is a protective cavity (311). A protective opening (312) is provided at the bottom of the protective ring (31), and an unlocking groove (313) is provided on one side of the protective ring (31). A rotating ring (32) is rotatably arranged inside the protective cavity (311). A protective rod (33) is provided on one side of the rotating ring (32). The protective rod (33) extends outward from the protective ring (31) through the unlocking groove (313) and abuts against the enclosure plate (1). A torsion spring (34) is sleeved on the rotating ring (32). One end of the torsion spring (34) is fixedly arranged on the protective ring (31), and the other end of the torsion spring (34) is fixedly arranged on the protective rod (33). A top-fitting mechanism (35) is provided at the bottom of the rotating ring (32).

8. A quick-folding portable fence according to claim 7, characterized in that: The top-connecting mechanism (35) includes a top-connecting spring (351) and a limiting pin (352). The limiting pin (352) is slidably disposed on the rotating ring (32), and the top-connecting spring (351) is sleeved on the limiting pin (352). One end of the top-connecting spring (351) is fixedly disposed on the rotating ring (32), and the other end of the top-connecting spring (351) is fixedly disposed on the limiting pin (352).

9. A quick-folding portable fence according to claim 1, characterized in that: A locking structure (7) is provided on the enclosure (1). The locking structure (7) includes a locking hole (71), a locking pin (72), a locking spring (73), a sliding hole (74), and an unlocking pin (75). The sliding hole (74) is opened on one side of the enclosure (1). The locking pin (72) is slidably disposed in the sliding hole (74). The locking spring (73) is disposed in the sliding hole (74). One end of the locking spring (73) is fixedly disposed on the sliding hole (74), and the other end of the locking spring (73) is fixedly disposed on the locking hole (75). On the pin (72), the locking hole (71) is opened on the other side of the enclosure (1), and the position of the locking hole (71) corresponds to the position of the sliding hole (74); the enclosure (1) is provided with an unlocking port (76), the unlocking port (76) is connected to the sliding hole (74), the unlocking pin (75) is slidably disposed on the unlocking port (76), the unlocking port (76) penetrates the enclosure (1), the locking pin (72) is provided with a wedge (721), and the unlocking pin (75) abuts against the wedge (721) of the locking pin (72).

10. A quick-folding portable fence according to claim 2, characterized in that: The other end of the support rod (41) is fixedly provided with a foot brace (411).

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