A mobile fence

Abstract

This invention relates to the field of safety fence technology, and provides a movable fence, including a U-shaped base. Multiple fixed rods are fixedly connected to the inner wall of the U-shaped base, and sliders are slidably connected between the fixed rods. A shock absorber is fixedly installed between the slider and one end of the inner wall of the U-shaped base. Each slider is fixedly connected to a column. An upper and lower horizontal bar are fixedly connected between the columns of two adjacent U-shaped bases. Multiple guardrails are rotatably connected between the upper and lower horizontal bars. Anti-collision barrels are fixedly fitted onto the outer walls of each guardrail. A driving assembly is provided between the multiple guardrails. Multiple sets of electrode plates (secondary) are embedded in the inner wall of one of the U-shaped bases, arranged along the sliding direction of the slider. Electrode plates (secondary) are embedded in the side walls of the slider within the U-shaped base. Each set of electrode plates (secondary) and electrode plates (firstary) forms a series circuit. When the corresponding circuit is activated, the driving assembly drives the guardrail to rotate. This invention has the advantages of graded buffering and force dissipation, and also has an impact warning function.

Description

Technical Field

[0001] This invention relates to the field of security fence technology, and more particularly to a mobile fence. Background Technology

[0002] In power construction and substation operation and maintenance, it is often necessary to set up mobile fences to demarcate high-voltage danger zones, prevent vehicles and unauthorized personnel from accidentally entering energized areas, and avoid power safety accidents such as electric shock and equipment collision damage. These are essential temporary isolation and protection facilities for standardized power field operations.

[0003] Some existing fences use simple, rigid railings for isolation. These rigid, fixed structures cannot absorb impacts and are prone to problems such as bent posts, complete collapse of the fence, and breakage of the isolation barrier. This leads to the failure of high-voltage protection and isolation, posing a significant safety hazard. In addition, the fences themselves have a high rate of damage from impacts, resulting in high costs for power maintenance and replacement. Furthermore, these simple railing fences lack collision detection and audible / visual alarm functions. After a collision, the danger cannot be detected immediately, and the risk of fence damage or intrusion into the high-voltage area cannot be assessed in a timely manner, resulting in a significant delay in management.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a mobile fence to overcome the shortcomings in current practical applications. Summary of the Invention

[0005] The purpose of this invention is to provide a mobile fence to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A movable fence includes a U-shaped base, a slider slidably connected to the inner wall of the U-shaped base, and a shock absorber fixedly installed between the slider and one end of the inner wall of the U-shaped base. Each slider is fixedly connected to a column, and an upper and lower horizontal bar are fixedly connected between the columns of two adjacent U-shaped bases. Multiple vertically arranged railings are rotatably connected between the upper and lower horizontal bars. Anti-collision barrels are fixedly fitted onto the outer walls of each railing. A driving assembly is fitted between the bottom ends of the multiple railings. One U-shaped base has multiple sets of electrode plates (secondary) embedded in its inner wall, arranged along the sliding direction of the slider. Electrode plates (secondary) are embedded on both sides of the slider within the U-shaped base. Each set of electrode plates (secondary) and electrode plates (firstary) forms a series circuit, and multiple sets of electrode plates (secondary) form a parallel circuit. When electrode plate (firstary) contacts a corresponding electrode plate (secondary), the corresponding circuit is activated, and the driving assembly rotates the railing. The rotational speed of the railing and anti-collision barrels varies depending on the activation of different sets of electrode plates (secondary).

[0007] In a further technical solution, a plurality of fixed rods are fixedly connected to the inner wall of the U-shaped seat, a slider is slidably connected between the plurality of fixed rods, and a shock absorber is fixedly installed between the slider and one end of the inner wall of the U-shaped seat.

[0008] A further technical solution includes a motor as the driving component. The motor is fixedly mounted at one end of the lower crossbar near the first electrode plate. A receiving groove is provided on the side wall of the lower crossbar. A rotating shaft is rotatably connected to the inner wall of the receiving groove, and one end of the rotating shaft is fixedly connected to the driving end of the motor. Multiple hollow worm gears are fixedly sleeved on the outer wall of the rotating shaft. Worm wheels are sleeved on the bottom end of the outer wall of the railing. A buffer component is provided between the inner wall of the worm wheel and the railing to avoid rigid impact between the worm wheel and the railing. The worm wheel meshes with the corresponding hollow worm gear. The motor is also electrically connected to a control circuit board, which is electrically connected to the first electrode plate and the second electrode plate respectively. The control circuit board is also electrically connected to a battery.

[0009] In a further technical solution, the buffer assembly includes a placement groove, which is opened at the bottom of the outer wall of the railing. A guide rod is fixedly connected to the inner wall of the placement groove, and a fixing plate is slidably connected to the outer wall of the guide rod. One end of the fixing plate is fixedly connected to the inner wall of the worm gear, and springs are provided between the fixing plate and the two side walls of the placement groove. The springs are sleeved on the outer wall of the guide rod.

[0010] A further technical solution involves increasing the distance between multiple sets of electrode plates two and the initial zero-force position of the slider along the sliding direction of the slider. The control circuit board has a preset graded speed program. The greater the distance between electrode plate two and the initial zero-force position of the slider, the greater the speed of the drive shaft of the motor controlled by the control circuit board after electrode plate two contacts electrode plate one.

[0011] A further technical solution includes a plurality of warning devices fixedly connected to the outer wall of one of the U-shaped seats, wherein the plurality of warning devices correspond to a plurality of sets of electrode plates two, and the warning devices are connected in series with the corresponding electrode plates two.

[0012] In a further technical solution, when the slider abuts against one end of the inner wall of the U-shaped seat, electrode plate two and electrode plate one do not contact each other.

[0013] In a further technical solution, the outer wall of the railing is also fixedly fitted with a support plate for isolating the anti-collision barrel and the lower crossbar.

[0014] Furthermore, a fixed cover is detachably connected to one end of the lower crossbar that has an accommodating groove.

[0015] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art: 1. Multiple sets of electrode plates increase the distance between the slider and the initial zero-force position along the slider's sliding direction. The control circuit board has a preset graded speed program. Different speed levels correspond to different sets of electrode plates. When electrode plate one is connected to the far electrode plate two, it means that the slider has a larger horizontal sliding distance and the lateral impact load of the external object is stronger. The drive motor speed is adjusted to increase step by step. The greater the impact force, the faster the anti-collision barrel rotates to unload the force and the higher the impact cancellation efficiency. It adaptively matches different levels of lateral impact load to complete graded unloading, effectively canceling the lateral impact force and ensuring the overall structural stability of the fence in all aspects. Electrode plate one and multiple sets of electrode plates two are used to complete the graded detection of impact displacement and impact load. The linkage drive component drives the anti-collision barrel to rotate adaptively to unload the force and simultaneously triggers the alarm device. It overcomes the defects of traditional rigid fences, such as weak impact resistance, easy bending and tipping, and lack of impact warning. It is suitable for all-weather isolation and protection in outdoor high-voltage power operation scenarios. 2. The slider slides along the fixed rod to transmit the impact force. It relies on the elastic deformation of the shock absorber to achieve the first-level energy absorption and buffering. Through the dual buffering structure of the first-level damping shock absorption and the second-level rotational force unloading, its impact resistance is further improved. 3. When an object hits the crash barrier and causes it to rotate, the crash barrier causes the railing to rotate, and the railing causes the guide rod to move. Since the fixed plate is stationary at this time, the springs on both sides of the fixed plate are compressed or stretched, leaving a buffer space. The instantaneous rotational impact force of the barrier railing is directly transmitted to the worm gear, avoiding rigid collisions and broken teeth on the worm gear and hollow worm gear tooth surfaces, weakening the instantaneous rigid impact of the transmission structure, and extending the overall service life of the drive transmission components.

[0016] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 Another perspective of the three-dimensional structure diagram; Figure 3 For the present invention Figure 2 A three-dimensional structural diagram of the middle section; Figure 4 This is a three-dimensional structural diagram of the lower crossbar in the present invention 1; Figure 5 For the present invention Figure 4 Exploded view; Figure 6 This is an exploded view of the base portion of the present invention; Figure 7 This is an enlarged three-dimensional structural diagram of point A in the present invention 5.

[0018] In the diagram: 1. U-shaped seat; 2. Fixed rod; 3. Slider; 4. Shock absorber; 5. Electrode plate one; 6. Electrode plate two; 7. Column; 8. Upper crossbar; 9. Lower crossbar; 10. Railing; 11. Support plate; 12. Anti-collision barrel; 13. Fixed cover; 14. Drive assembly; 141. Motor; 142. Rotating shaft; 143. Cavity worm gear; 144. Worm wheel; 145. Buffer assembly; 1451. Placement slot; 1452. Fixed plate; 1453. Guide rod; 1454. Spring; 15. Receiving slot; 16. Warning device. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] like Figures 1-7 As shown, this embodiment of the invention provides a movable fence, including a U-shaped base 1. Multiple fixed rods 2 are fixedly connected to the inner wall of the U-shaped base 1. Sliding sliders 3 are slidably connected between the multiple fixed rods 2. A shock absorber 4 is fixedly installed between the slider 3 and one end of the inner wall of the U-shaped base 1. A column 7 is fixedly connected to each slider 3. An upper horizontal bar 8 and a lower horizontal bar 9 are fixedly connected between two adjacent columns 7 on the U-shaped base 1. Multiple vertically arranged railings 10 are rotatably connected between the upper horizontal bar 8 and the lower horizontal bar 9. Anti-collision barrels 12 are fixedly sleeved on the outer wall of each railing 10. A drive assembly 14 is provided between the bottom ends of each railing 10. Multiple sets of electrode plates 6 are embedded in the inner wall of one of the U-shaped seats 1, arranged along the sliding direction of the slider 3. Electrode plates 5 are embedded in the two side walls of the slider 3 in the U-shaped seat 1. Each set of electrode plates 6 and electrode plates 5 form a series circuit, and multiple sets of electrode plates 6 form a parallel circuit. When electrode plate 5 contacts the corresponding electrode plate 6, the corresponding circuit is turned on, and the drive assembly 14 drives the railing 10 to rotate. The rotation speed of the railing 10 and the anti-collision barrel 12 is different depending on the conduction of different sets of electrode plates 6.

[0022] It is understandable that each set of electrode plates 26 and electrode plate 15 form a series circuit, and multiple sets of electrode plates 26 form a parallel circuit. When electrode plate 15 and the corresponding electrode plate 26 come into contact (equivalent to closing a switch), the circuit formed between that set of electrode plates 26 and electrode plate 15 is turned on.

[0023] In this embodiment of the invention, the slider 3 slides along the fixed rod to transmit the impact force, and the elastic deformation of the shock absorber 4 achieves the first-level energy absorption buffer; at the same time, the electrode plate 5 and multiple sets of electrode plates 6 are used to complete the graded detection of impact displacement and impact load, and the linkage drive component 14 drives the anti-collision barrel 12 to adaptively rotate and unload the force, and simultaneously triggers the alarm device 16. Through the dual buffer structure of first-level damping shock absorption and second-level rotation unloading, the defects of traditional rigid fences, such as weak impact resistance, easy bending and tipping, and lack of impact warning, are overcome, making it suitable for all-weather isolation and protection in outdoor high-voltage power operation scenarios.

[0024] Furthermore, when the slider 3 abuts against one end of the inner wall of the U-shaped seat 1, the electrode plate 6 and the electrode plate 5 do not contact each other, nor do they contact the slider 3. This reserved gap can offset the influence of outdoor natural wind disturbance and slight vibration from ground vehicle traffic causing small displacement of the slider 3, thereby avoiding the electrode plate 5 and the electrode plate 6 from accidentally contacting the conductive circuit without being subjected to force, eliminating the false start of the warning module and drive components, and greatly improving the adaptability and stability of the fence to outdoor operation conditions.

[0025] Furthermore, the outer wall of the railing 10 is also fixedly fitted with a support plate 11 for isolating the anti-collision barrel 12 and the lower crossbar 9. The support plate 11 prevents the lower crossbar 9 from hindering the rotation of the anti-collision barrel 12 due to contact with it.

[0026] Furthermore, one of the U-shaped bases 1 has multiple warning devices 16 fixedly connected to its outer wall. The multiple warning devices 16 correspond to multiple sets of electrode plates 2 6. The warning devices 16 are connected in series with the corresponding electrode plates 2 6. When a set of electrode plates 2 6 and electrode plate 1 5 are connected, the warning device 16 corresponding to that set of electrode plates 2 6 is activated.

[0027] It is understood that the warning device 16 may use a warning light and / or a buzzer. When a warning light is used, the warning lights connected in series with different groups of electrode plates 6 will illuminate in different colors when they are turned on. When a buzzer is used, the buzzers connected in series with different groups of electrode plates 6 will emit different sounds when they are turned on, which helps to visually distinguish the impact level.

[0028] like Figures 3-7As shown, the drive assembly 14 includes a motor 141, which is fixedly mounted on one end of the lower crossbar 9 near the electrode plate 5. A receiving groove 15 is provided on the side wall of the lower crossbar 9. A rotating shaft 142 is rotatably connected to the inner wall of the receiving groove 15, and one end of the rotating shaft 142 is fixedly connected to the drive end of the motor 141. A plurality of hollow worm gears 143 are fixedly sleeved on the outer wall of the rotating shaft 142. A worm wheel 144 is sleeved on the bottom end of the outer wall of the railing 10. A buffer assembly 145 is provided between the inner wall of the worm wheel 144 and the railing 10 to avoid rigid impact between the worm wheel 144 and the railing 10. The worm wheel 144 is meshed with the corresponding hollow worm gear 143. The motor 141 is also electrically connected to a control circuit board, which is electrically connected to the electrode plate 5 and the electrode plate 6 respectively. The control circuit board is also electrically connected to a battery.

[0029] It is understood that the control circuit board can be a power-specific industrial waterproof embedded main control board (embedded integrated control product, not PLC), which receives different circuit conduction signals and outputs corresponding speed execution commands.

[0030] In practical applications, when a set of electrode plates 6 and 5 are connected, the corresponding warning device 16 is activated to remind personnel. At the same time, the control circuit board receives the signal and drives the drive end of the motor 141 to rotate. The motor 141 drives the rotating shaft 142 to rotate, the rotating shaft 142 drives the hollow worm gear 143 to rotate, and then the hollow worm gear 143 drives the worm wheel 144 to rotate. The worm wheel 144 drives the railing 10 to rotate, and the railing 10 drives the anti-collision barrel 12 to rotate. The rotational friction of the outer wall of the anti-collision barrel 12 is used to decompose the lateral impact force of the external object, change the direction of the impact force transmission, and distribute the instantaneous impact load borne by the slider 3, shock absorber 4, and column 7, further reducing the risk of the fence bending and overall collapse, and stabilizing the integrity of the high-pressure isolation and protection barrier.

[0031] Furthermore, the buffer assembly 145 includes a placement groove 1451, which is formed at the bottom of the outer wall of the railing 10. A guide rod 1453 is fixedly connected to the inner wall of the placement groove 1451, and a fixing plate 1452 is slidably connected to the outer wall of the guide rod 1453. One end of the fixing plate 1452 is fixedly connected to the inner wall of the worm gear 144, and springs 1454 are provided between the fixing plate 1452 and both side walls of the placement groove 1451. The springs 1454 are sleeved on the outer wall of the guide rod 1453.

[0032] In practical applications, when an object impacts the crash barrier 12 and causes it to rotate, the crash barrier 12 causes the railing 10 to rotate, and the railing 10 causes the guide rod 1453 to move. Since the fixed plate 1452 is stationary at this time, the springs 1454 on both sides of the fixed plate 1452 are compressed or stretched, leaving a buffer space. The instantaneous rotational impact force of the barrier 10 is directly transmitted to the worm gear 144, avoiding rigid collisions and broken teeth on the tooth surfaces of the worm gear 144 and the hollow worm 143, weakening the instantaneous rigid impact of the transmission structure, and extending the overall service life of the drive transmission components. After the impact ends, the springs 1454 on both sides of the fixed plate 1452 that were compressed or stretched return to their original positions, causing the railing 10 and the crash barrier 12 to return to their initial zero-force positions.

[0033] Furthermore, a fixed cover 13 is detachably connected to one end of the lower crossbar 9 that has an accommodating groove 15, thereby facilitating the maintenance of the drive assembly 14.

[0034] Furthermore, the distance between the multiple sets of electrode plates 26 and the initial zero-force position of the slider 3 increases progressively along the sliding direction of the slider 3. The control circuit board has a preset graded speed program, with different speed levels corresponding to different sets of electrode plates 26. When electrode plate 15 conducts to the far end of electrode plate 26, it means that the slider slides a greater horizontal distance and the lateral impact load of the external object is stronger. The speed of the drive end of the drive motor 141 is synchronously adjusted to increase progressively. This means that the greater the impact force, the faster the self-rotation unloading speed of the anti-collision barrel and the higher the impact cancellation efficiency. It adaptively matches different levels of lateral impact loads to complete graded unloading, maximizes the cancellation of lateral impact force, and comprehensively ensures the overall structural stability of the fence. Setting differentiated rotation speeds for the railing 10 and the crash barrier 12 helps match the impact force and achieve graded energy consumption: When an object slightly scrapes against it, the slider 3 slides a small distance, and only the near electrode plate 6 is conductive. The motor drives the crash barrier 12 to rotate at low speed, and the low-speed friction can consume a small amount of impact energy, avoiding excess energy that could cause a reverse rebound. When a vehicle or heavy object violently impacts it, the slider 3 slides a large distance, the far electrode plate 6 is conductive, and the drive shaft of the motor 141 drives the crash barrier 12 to rotate at high speed. The high speed can greatly increase the work done by the friction of the outer wall, converting the huge lateral impact kinetic energy into frictional heat energy, maximizing the removal of instantaneous load, and further preventing the column 7 from bending and the railing from tipping over.

[0035] The working principle of this invention is as follows: When an object initially impacts the anti-collision barrel 12, the impact barrel 12 is transmitted to the slider 3 in sequence through the railing 10, the upper horizontal bar 8, and the column 7. Then, the slider 3 slides along the inner wall of the U-shaped seat 1, and the slider 3 compresses the telescopic end of the shock absorber 4, thereby absorbing the energy of the slider 3 through the shock absorber 4. When the electrode plate 5 on the slider 3 contacts the corresponding electrode plate 6, the corresponding warning device 16 is activated to remind nearby personnel. The control circuit board receives the signal and drives the drive end of the motor 141 to rotate. The motor 141 drives the rotating shaft 142 to rotate, the rotating shaft 142 drives the hollow worm gear 143 to rotate, and then the hollow worm gear 143 drives the worm wheel 144 to rotate. The worm wheel 144 drives the railing 10 to rotate through the buffer assembly 145, and the railing 10 drives the anti-collision barrel 12 to rotate, thereby dispersing the impact borne by the anti-collision barrel 12 and the slider 3. When an object initially impacts the crash barrier 12, if the object synchronously drives the crash barrier 12 to rotate, the crash barrier 12 will drive the railing 10 to rotate, and the railing 10 will drive the guide rod 1453 to move. The springs 1454 on both sides of the fixed plate 1452 will be compressed or stretched, thereby preventing the railing 10 from directly impacting the inner wall of the worm gear 144.

[0036] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A movable fence, comprising a U-shaped base (1), characterized in that, The inner wall of the U-shaped seat (1) is slidably connected to a slider (3), and each slider (3) is fixedly connected to a column (7). An upper horizontal bar (8) and a lower horizontal bar (9) are fixedly connected between the columns (7) on two adjacent U-shaped seats (1). Multiple vertically arranged railings (10) are rotatably connected between the upper horizontal bar (8) and the lower horizontal bar (9). Anti-collision barrels (12) are fixedly sleeved on the outer wall of each railing (10). A drive assembly (14) is provided between the bottom ends of the multiple railings (10). Multiple U-shaped seats (1) are embedded in the inner wall of one of the U-shaped seats (1). A set of two electrode plates (6) are arranged along the sliding direction of the slider (3). Electrode plates (5) are embedded on both sides of the slider (3) in the circular seat (1). Each set of two electrode plates (6) and electrode plates (5) form a series circuit. Multiple sets of two electrode plates (6) form a parallel circuit. When electrode plates (5) and corresponding electrode plates (6) are in contact, the corresponding circuit is turned on, and the drive assembly (14) drives the railing (10) to rotate. The rotation speed of the railing (10) and the anti-collision barrel (12) is different depending on the conduction of different sets of two electrode plates (6).

2. The movable fence according to claim 1, characterized in that, The inner wall of the spiral seat (1) is fixedly connected with multiple fixed rods (2), and a slider (3) is slidably connected between the multiple fixed rods (2). A shock absorber (4) is fixedly installed between the slider (3) and one end of the inner wall of the spiral seat (1).

3. The movable fence according to claim 2, characterized in that, The drive assembly (14) includes a motor (141), which is fixedly mounted on one end of the lower crossbar (9) near the electrode plate (5). A receiving groove (15) is provided on the side wall of the lower crossbar (9). A rotating shaft (142) is rotatably connected to the inner wall of the receiving groove (15), and one end of the rotating shaft (142) is fixedly connected to the drive end of the motor (141). A plurality of hollow worm gears (143) are fixedly sleeved on the outer wall of the rotating shaft (142). The outer wall of the railing (10) The bottom end is fitted with a worm gear (144), and a buffer assembly (145) is provided between the inner wall of the worm gear (144) and the railing (10) to avoid rigid impact between the worm gear (144) and the railing (10). The worm gear (144) is meshed with the corresponding hollow worm (143). The motor (141) is also electrically connected to a control circuit board, and the control circuit board is electrically connected to electrode plate one (5) and electrode plate two (6) respectively. The control circuit board is also electrically connected to a storage battery.

4. The movable fence according to claim 3, characterized in that, The buffer assembly (145) includes a placement groove (1451), which is located at the bottom of the outer wall of the railing (10). A guide rod (1453) is fixedly connected to the inner wall of the placement groove (1451), and a fixing plate (1452) is slidably connected to the outer wall of the guide rod (1453). One end of the fixing plate (1452) is fixedly connected to the inner wall of the worm gear (144), and springs (1454) are provided between the fixing plate (1452) and the two side walls of the placement groove (1451). The springs (1454) are sleeved on the outer wall of the guide rod (1453).

5. The movable fence according to claim 4, characterized in that, The distance between the two sets of electrode plates (6) and the initial zero-force position of the slider (3) increases gradually along the sliding direction of the slider (3). The control circuit board has a preset graded speed program. The greater the distance between the two sets of electrode plates (6) and the initial zero-force position of the slider (3), the greater the speed of the drive shaft of the motor (141) controlled by the control circuit board after the two sets of electrode plates (6) and the first set of electrode plates (5) come into contact.

6. The movable fence according to claim 5, characterized in that, One of the ring-shaped seats (1) has multiple warning devices (16) fixedly connected to its outer wall. The multiple warning devices (16) correspond to multiple sets of electrode plates (6). The warning devices (16) are connected in series with the corresponding electrode plates (6).

7. The movable fence according to claim 5, characterized in that, When the slider (3) abuts against one end of the inner wall of the circular seat (1), the second electrode plate (6) and the first electrode plate (5) do not contact each other.

8. The movable fence according to claim 1, characterized in that, The outer wall of the railing (10) is also fixedly fitted with a support plate (11) for isolating the anti-collision barrel (12) and the lower crossbar (9).

9. The movable fence according to claim 1, characterized in that, The lower crossbar (9) has a detachable cover (13) at one end of the receiving groove (15).

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