A new portable adjustable protective device

Abstract

The present invention relates to the field of building auxiliary construction technology, and specifically to a novel portable adjustable protective device, comprising a supporting device and an elastic protective net, wherein the supporting device and the elastic protective net are each provided with three groups, and two adjacent groups of the supporting devices are connected by the elastic protective net, and the supporting device comprises a telescopic member and a limiting member, wherein the telescopic member is located at the upper end of the limiting member, and the limiting member and the telescopic member are connected by threads, and the telescopic member comprises a support column; and further comprises a magnetic energy drive component connected to the support column. The present invention utilizes a gripping component to make the supporting device tightly contact with the ground, and at the same time assembles multiple parts into a supporting device by threaded connection, thereby facilitating transportation, and protecting the area around the pothole by the elastic protective net, so as to solve the problems that traditional pothole protection devices are not widely practical, inconvenient to transport and clean, and not conducive to multi-station work.

Description

Technical Field

[0001] The invention relates to the technical field of building auxiliary construction, and in particular to a novel portable adjustable protective device. Background Art

[0002] During the construction of civil engineering projects, safety comes first. In the actual construction process, there are many temporary pits. If they are not protected and warned, it is easy to cause safety accidents. Therefore, in the actual construction process, attention should be paid to eliminating such safety hazards.

[0003] Common measures are to manually build a protective system or directly cover the pothole. When manually building a protective system, materials need to be transported and then built. Direct covering cannot play a good warning role. If the cover is not firm, it will pose a safety hazard. Traditional manual construction is time-consuming and labor-intensive. Direct covering cannot play a good warning role. At the same time, it is inconvenient to check the firmness of the cover. Therefore, an integrated guardrail or protective cover is usually used on the market to protect the pothole. This type of protective device has the following defects:

[0004] 1. Since this type of device is usually formed in one piece by welding, it is not easy to carry when in use. Moreover, this type of device can only protect certain types of potholes and its practicality is not wide;

[0005] 2. After use, this type of protective device and those protective devices on the market with adjustable protection range are not convenient to transport during transportation. In addition, due to workplace reasons, pothole protective devices need to be cleaned frequently, while traditional protective devices are not easy to clean;

[0006] 3. Since the pothole protection device needs to change its working position frequently and needs to be moved frequently, its own weight should not be too large. Since it needs to protect the potholes when working, it cannot leave its original position due to external forces. The existing pothole protection device usually solves this problem by increasing its own weight. Obviously, the existing pothole protection device is not conducive to moving to another working position.

[0007] Therefore, it is necessary to invent a novel portable adjustable protective device. Summary of the Invention

[0008] To this end, the present invention provides a new portable adjustable protective device, which utilizes a gripping assembly to make the support device tightly contact the ground, and at the same time assembles multiple parts into a support device through threaded connections, so as to facilitate transportation, and protects the area around the pothole through an elastic protective net, so as to solve the problems of traditional pothole protection devices that are not widely practical, inconvenient to transport and clean, and not conducive to multi-station work.

[0009] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a novel portable adjustable protective device, comprising a supporting device and an elastic protective net, wherein the supporting device and the elastic protective net are each provided with three groups, and two adjacent groups of the supporting devices are connected by the elastic protective net; the supporting device comprises a telescopic member and a limiting member, wherein the telescopic member is located at the upper end of the limiting member, and the limiting member and the telescopic member are connected by a thread; the telescopic member comprises a support column; and further comprises: a magnetic energy drive assembly connected to the support column;

[0010] The magnetic energy drive component includes an insulating sleeve, a power supply is fixedly installed on the bottom of the insulating sleeve, and both poles of the power supply are fixedly connected to electromagnetic guide rails. The outer walls of the two groups of electromagnetic guide rails are fixedly installed with multiple groups of linearly arranged magnets. The inner walls of the two groups of electromagnetic guide rails are clamped with the same armature slider, and the armature slider is slidably connected to the two groups of electromagnetic guide rails. An insulating partition is fixedly installed on the upper surface of the armature slider, and a push rod is fixedly installed on the upper surface of the insulating partition, and the push rod slides through the upper end of the insulating sleeve.

[0011] Preferably, a telescopic spring is fixedly installed in the middle of the insulating sleeve, the top rod is located in the middle of the telescopic spring, the top of the top rod is fixedly connected to the support column, the bottom end of the support column is fixedly connected to the other end of the telescopic spring, and the support column slides through the top of the insulating sleeve.

[0012] Preferably, the limiting member includes a displacement assembly, which includes a first base plate, the middle portion of the first base plate is clamped with a limiting plate, the side wall of the first base plate is provided with three groups of circumferentially arranged fastening bolts, the three groups of fastening bolts are all matched with the limiting plate, the side wall of the first base plate is rotatably connected with three groups of circumferentially arranged first adjustment rods, the upper portion of the first base plate is provided with a second base plate, the second base plate is aligned with the center of the first base plate, the side wall of the second base plate is rotatably connected with three groups of circumferentially arranged second adjustment rods, the end of the first adjustment rod is rotatably connected to the middle portion of the second adjustment rod by a bolt, and the bottom end of the second adjustment rod is fixedly mounted with a universal wheel.

[0013] Preferably, the displacement assembly also includes an outer cylinder, and the outer side wall of the outer cylinder is provided with two groups of symmetrically arranged limiting grooves, the bottom of the outer cylinder is threadedly connected to the middle of the limiting plate, the outer cylinder slides through the second base plate, and the side wall of the second base plate is provided with a limiting bolt, and the inside of the limiting groove is provided with multiple groups of linearly arranged threaded holes, and the limiting bolts are threadedly engaged with the threaded holes.

[0014] Preferably, the limiting member also includes a gripping assembly, which is located inside the outer cylinder. The gripping assembly includes a hard rod, a thin rod is fixedly installed at the bottom end of the hard rod, a fastening rod is fixedly installed at the bottom end of the thin rod, the fastening rod slides through the bottom of the outer cylinder, and a drill bit is fixedly installed at the bottom end of the fastening rod.

[0015] Preferably, the hard rod, thin rod and fastening rod all slide through the outer cylinder, an inner spiral groove is provided on the inner wall of the upper end of the outer cylinder, an outer spiral groove is provided on the upper end of the hard rod, and the outer spiral groove is engaged with the inner spiral groove.

[0016] Preferably, a fixed clamp is fixedly installed in the middle of the inner wall of the outer cylinder, the thin rod slides through the fixed clamp, and a return spring is sleeved on the outside of the thin rod located at the upper end of the fixed clamp, one end of the return spring is fixedly connected to the upper end of the fixed clamp, and the other end of the return spring is fixedly connected to the bottom end of the hard rod.

[0017] Preferably, the bottom end of the fastening rod is provided with six groups of mounting grooves arranged in a circumferential manner, the bottom ends of the six groups of mounting grooves are rotatably connected to gripping rods, the top ends of the gripping rods are fixedly installed with limiting clamps, the top ends of the six groups of mounting grooves are rotatably connected to telescopic rods, the telescopic rods and the inner side walls of the mounting grooves are connected to the same torsion spring, and the two ends of the torsion spring are respectively fixedly connected to one side of the telescopic rod and the inner side wall of the mounting groove.

[0018] Preferably, a protective ring is fixedly installed on the top of the outer cylinder, the hard rod rotates and passes through the outer cylinder, and the top of the hard rod is threadedly connected to the bottom of the insulating sleeve.

[0019] Preferably, two groups of sockets are provided at the top of the support column, and an angle of sixty degrees is formed between the two groups of sockets, and the elastic protective net is plugged into the sockets.

[0020] The beneficial effects of the present invention are:

[0021] 1. After completing the protection of a certain pothole and moving to the next workstation, the worker can screw the grip assembly into the outer cylinder by rotating the insulating sleeve that matches the hard rod. Then, by rotating the limit bolt, the limit bolt is disconnected from the threaded hole. At the same time, the second base plate is moved to make the universal wheel installed on the second adjustment rod contact the ground. At the same time, the limit bolt is tightened to match the threaded hole at the upper end. At this time, the moving personnel can push the device to the next workstation for protection by pushing the support device.

[0022] 2. When transporting or cleaning the device after the protection is completed, the staff only needs to loosen the three sets of fastening bolts to separate the limit plate from the first base plate. At the same time, loosen the limit bolts and rotate the outer cylinder to separate the outer cylinder from the first base plate and the second base plate. At the same time, remove the bolts between the first adjustment rod and the second adjustment rod to separate the first base plate from the second base plate. By rotating the insulating sleeve, the telescopic member can be removed from the hard rod. At this time, the device can be easily transported and cleaned.

[0023] When the cam is in contact with the hole, the outer spiral groove inside the hard rod is loosened from the inner spiral groove inside the outer cylinder, and the tightening rod moves backward under the elastic force of the reset spring. Under the action of the inner wall of the bottom of the outer cylinder, the telescopic rod moves inward, causing the torsion spring to be compressed, so that the gripping rod and the telescopic rod are retracted into the installation groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the protective structure of the device provided by the present invention when in operation;

[0025] Figure 2 A schematic structural diagram of the support device provided by the present invention;

[0026] Figure 3 A schematic structural diagram of the displacement assembly provided by the present invention;

[0027] Figure 4 A schematic structural diagram of the outer cylinder provided by the present invention;

[0028] Figure 5 A schematic structural diagram of the grip assembly provided by the present invention;

[0029] Figure 6 A cross-sectional view of the inner portion of the outer cylinder provided by the present invention;

[0030] Figure 7 The present invention provides Figure 6 Schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 8 A schematic structural diagram of the telescopic member provided by the present invention;

[0032] Figure 9 This is a schematic structural diagram of the magnetic energy drive assembly provided by the present invention.

[0033] In the figure: support device 100, telescopic member 110, magnetic energy drive assembly 120, insulating sleeve 121, power supply 122, electromagnetic guide rail 123, magnet 124, armature slider 125, insulating partition 126, top rod 127, support column 130, telescopic spring 131, jack 132, limiting member 150, displacement assembly 160, first base plate 161, limiting plate 162, fastening bolt 163, first adjustment rod 164, second base plate 165, limiting bolt 166, second adjusting rod 167, universal wheel 168, protective ring 169, outer cylinder 170, limiting slide groove 171, threaded hole 172, inner spiral groove 173, fixed clamping plate 174, return spring 175, gripping assembly 180, hard rod 181, thin rod 182, fastening rod 183, drill bit 184, mounting groove 185, gripping rod 186, limiting clamp 187, telescopic rod 188, torsion spring 189, outer spiral groove 190, elastic protective net 200. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] Refer to the attached Figure 1-9 The present invention provides a novel portable adjustable protective device, comprising a support device 100 and an elastic protective net 200. The support device 100 and the elastic protective net 200 are each provided with three groups, and two adjacent groups of support devices 100 are connected by the elastic protective net 200. The support device 100 comprises a telescopic member 110 and a limiting member 150. The telescopic member 110 is located at the upper end of the limiting member 150. The limiting member 150 is connected to the telescopic member 110 by a thread. The telescopic member 110 comprises a support column 130 and further comprises a magnetic energy drive assembly 120 connected to the support column 130.

[0036] The magnetic energy drive component 120 includes an insulating sleeve 121, a power supply 122 is fixedly installed at the bottom of the insulating sleeve 121, the insulating sleeve 121 supports the power supply 122, the two poles of the power supply 122 are fixedly connected to the electromagnetic guide rails 123, the power supply 122 supplies power to the two sets of electromagnetic guide rails 123, and the power supply 122 provides support for the two sets of electromagnetic guide rails 123, the outer walls of the two sets of electromagnetic guide rails 123 are fixedly installed with multiple sets of linearly arranged magnets 124, the two sets of electromagnetic guide rails 123 provide installation positions for the magnets 124, the inner walls of the two sets of electromagnetic guide rails 123 are clamped with the same armature slider 125, the armature slider 125 and the two sets of electromagnetic guide rails The magnetic guide rails 123 are slidably connected, and the two sets of electromagnetic guide rails 123 serve as guides and limiters for the armature slider 125. An insulating partition 126 is fixedly installed on the upper surface of the armature slider 125. The armature slider 125 provides support for the insulating partition 126. A top rod 127 is fixedly installed on the upper surface of the insulating partition 126. The insulating partition 126 supports the top rod 127. The top rod 127 slides through the upper end of the insulating sleeve 121. Specifically, when the power supply 122 is working, the current of the power supply 122 flows out from the positive pole of the power supply 122, flows into the inside of the electromagnetic guide rail 123 connected to the positive pole of the power supply 122, and flows to the other side through the armature slider 125. The electromagnetic guide rail 123 flows into the negative electrode of the power supply 122. Under the action of the current, the track current can form a magnetic field perpendicular to the surface of the electromagnetic guide rail 123 at the armature slider 125 (which can be regarded as a uniform magnetic field). The magnitude of the magnetic induction intensity is proportional to the magnitude of the current. Under the action of the magnetic field, a Lorentz force (the force exerted on a moving charge in a magnetic field, that is, the force exerted by the magnetic field on the moving charge, the formula of the Lorentz force is F=QvB) can be generated at the tail of the armature slider 125. Under the action of the Lorentz force, the armature slider 125 will drive the push rod 127 to move upward, thereby causing the support column 130 to move upward. At this time, under the action of the push rod 127 , the telescopic spring 131 is stretched, thereby balancing the generated Lorentz force. After the support column 130 is stretched, the elastic protective net 200 can be laid to facilitate the protection of potholes. In particular, since the elastic force of the telescopic spring 131 changes linearly (F=-k·x), the elongation of the support column 130 is the same as the deformation of the telescopic spring 131, and the Lorentz force (F=QvB) also changes linearly. Therefore, by changing the magnitude of the input current, the elongation of the support column 130 can be changed. Compared with traditional electric telescopic rods and hydraulic cylinders, this telescopic device has the advantages of fast response speed, low manufacturing cost and small installation location.

[0037] Furthermore, a telescopic spring 131 is fixedly installed in the middle of the insulating sleeve 121. The insulating sleeve 121 provides an installation position for the telescopic spring 131. The top rod 127 is located in the middle of the telescopic spring 131. The top of the top rod 127 is fixedly connected to the support column 130. The top rod 127 provides support for the support column 130. The bottom end of the support column 130 is fixedly connected to the other end of the telescopic spring 131. The telescopic spring 131 supports the support column 130. The support column 130 slides through the top of the insulating sleeve 121. Specifically, when the top rod 127 moves upward, under the action of the top rod 127, the support column 130 will pull the telescopic spring 131, causing the telescopic spring 131 to deform, thereby balancing the Lorentz force.

[0038] Furthermore, the limiting member 150 includes a displacement assembly 160, which includes a first base plate 161. The middle portion of the first base plate 161 is clamped with a limiting plate 162. The first base plate 161 provides an installation position for the limiting plate 162. The side wall of the first base plate 161 is provided with three groups of circumferentially arranged fastening bolts 163. The fastening bolts 163 are threadedly engaged with the side wall of the first base plate 161. The three groups of fastening bolts 163 are all matched with the limiting plate 162. The side wall of the first base plate 161 is rotatably connected to three groups of circumferentially arranged first adjustment rods 164. The first base plate 161 provides a mounting position for the first adjustment rod 164. A second base plate 165 is provided on the upper portion of the first base plate 161. The second base plate 165 is aligned with the center of the first base plate 161. The side wall of the second base plate 165 is rotatably connected to three groups of second adjustment rods 167 arranged in a circumference. The second base plate 165 provides a mounting position for the second adjustment rod 167. The end of the first adjustment rod 164 is rotatably connected to the middle of the second adjustment rod 167 by a bolt. The first adjustment rod 164 supports the second adjustment rod 167. The bottom end of the second adjustment rod 167 The universal wheel 168 is fixedly installed, and the universal wheel 168 supports the second adjusting rod 167. Specifically, the staff places the limit plate 162 in the middle of the first base plate 161, then tightens the fastening bolt 163, inserts the outer cylinder 170 into the limit plate 162, and rotates the outer cylinder 170 at the same time. After the outer cylinder 170 and the limit plate 162 are threadedly engaged, the end of the first adjusting rod 164 is connected to the middle of the second adjusting rod 167 by a bolt, so that the second base plate 165 cooperates with the outer cylinder 170, and the second base plate 165 is moved at the same time. Plate 165 is placed in a suitable position (according to the position adjustment of the universal wheel 168, when the device needs to be moved, the second base plate 165 is moved up, at this time, the second adjustment rod 167 is moved down, and the first adjustment rod 164 is moved up, at this time the universal wheel 168 is in contact with the ground, and when performing protective work, the second base plate 165 is moved down and the universal wheel 168 is not in contact with the ground), and then the limiting bolt 166 is tightened to complete the assembly of the limiting component 150, and at the same time, the lower end of the insulating sleeve 121 is threadedly engaged with the upper end of the hard rod 181 to complete the assembly of the device.

[0039] Furthermore, the displacement assembly 160 also includes an outer cylinder 170. The outer wall of the outer cylinder 170 is provided with two sets of symmetrically arranged limiting grooves 171. The outer cylinder 170 provides an opening position for the limiting grooves 171. The bottom of the outer cylinder 170 is threadedly connected to the middle of the limiting plate 162. The limiting plate 162 provides support for the outer cylinder 170. The outer cylinder 170 slides through the second base plate 165. The side wall of the second base plate 165 is provided with a limiting bolt 166. The inner portion of the limiting groove 171 is provided with a limiting bolt 166. There are multiple groups of threaded holes 172 arranged in a linear manner, and the limiting bolts 166 are threadedly engaged with the threaded holes 172. Specifically, the position of the second base plate 165 on the outer cylinder 170 can be changed by threading the limiting bolts 166 with the threaded holes 172. When the second base plate 165 moves up, the second adjusting rod 167 moves down and the first adjusting rod 164 moves up. At this time, the universal wheel 168 is in contact with the ground, which is convenient for movement. On the contrary, the universal wheel 168 is not in contact with the ground, which is convenient for work.

[0040] Furthermore, the limiting member 150 also includes a gripping assembly 180, which is located inside the outer cylinder 170. The gripping assembly 180 includes a hard rod 181, and a thin rod 182 is fixedly installed at the bottom end of the hard rod 181. The thin rod 182 provides support for the hard rod 181. A fastening rod 183 is fixedly installed at the bottom end of the thin rod 182. The fastening rod 183 supports the thin rod 182. The fastening rod 183 slides through the bottom of the outer cylinder 170. A drill bit 184 is fixedly installed at the bottom end of the fastening rod 183, and the fastening rod 183 provides an installation position for the drill bit 184.

[0041] Furthermore, the hard rod 181, the thin rod 182 and the fastening rod 183 all slide through the outer cylinder 170. An inner spiral groove 173 is provided on the inner wall of the upper end of the outer cylinder 170. The outer cylinder 170 provides an opening position for the inner spiral groove 173. An outer spiral groove 190 is provided on the upper end of the hard rod 181. The hard rod 181 provides an installation position for the outer spiral groove 190. The outer spiral groove 190 is engaged with the inner spiral groove 173. Specifically, when the hard rod 181 is rotated, under the action of the inner spiral groove 173 and the outer spiral groove 190, the hard rod 181 will move up (down).

[0042] Furthermore, a fixed clamping plate 174 is fixedly installed in the middle of the inner wall of the outer cylinder 170, and the outer cylinder 170 provides an installation position for the fixed clamping plate 174. The thin rod 182 slides through the fixed clamping plate 174, and a return spring 175 is sleeved on the outside of the thin rod 182 located at the upper end of the fixed clamping plate 174. One end of the return spring 175 is fixedly connected to the upper end of the fixed clamping plate 174, and the other end of the return spring 175 is fixedly connected to the bottom end of the hard rod 181. The fixed clamping plate 174 provides an installation position for the return spring 175. Specifically, when the hard rod 181 moves downward, the return spring 175 is compressed.

[0043] Furthermore, the bottom end of the fastening rod 183 is provided with six groups of mounting grooves 185 arranged in a circumference, and the fastening rod 183 provides an opening position for the mounting groove 185. The bottom ends of the six groups of mounting grooves 185 are rotatably connected to the gripping rods 186. The mounting grooves 185 provide mounting positions for the gripping rods 186. The top ends of the gripping rods 186 are fixedly installed with a limit clamp 187. The gripping rods 186 support the limit clamp 187. The top ends of the six groups of mounting grooves 185 are rotatably connected to the telescopic rods 188. The mounting grooves 185 To provide an installation position for the telescopic rod 188, the telescopic rod 188 and the inner wall of the mounting groove 185 are connected to the same torsion spring 189, and the two ends of the torsion spring 189 are respectively fixedly connected to one side of the telescopic rod 188 and the inner wall of the mounting groove 185. Specifically, when the insulating sleeve 121 that cooperates with the hard rod 181 is rotated, the outer spiral groove 190 inside the hard rod 181 cooperates with the inner spiral groove 173 inside the outer cylinder 170, causing the hard rod 181, the thin rod 182 and the fastening rod 1 83 moves downward, the return spring 175 is compressed, and the drill bit 184 at the bottom of the fastening rod 183 can drill a hole in the ground. When the fastening rod 183 contacts the wall of the hole, the telescopic rod 188 is extended under the action of the torsion spring 189 and moves outward on the gripping rod 186. Under the action of the telescopic rod 188, the gripping rod 186 is extended. At this time, the limit clamp 187 on the gripping rod 186 contacts the hole wall, so that the gripping rod 186 is clamped with the hole wall, thereby achieving the tightening effect. In addition, after the protection is completed, through the insulating sleeve 121 that cooperates with the hard rod 181, the outer spiral groove 190 inside the hard rod 181 and the inner spiral groove 173 inside the outer cylinder 170 are loosened, and under the elastic force of the reset spring 175, the fastening rod 183 moves backward rapidly. Under the action of the inner wall of the bottom of the outer cylinder 170, the telescopic rod 188 moves into the installation groove 185, causing the torsion spring 189 to be compressed, so that the gripping rod 186 and the telescopic rod 188 are retracted into the installation groove.

[0044] Furthermore, a protective ring 169 is fixedly installed on the top of the outer cylinder 170, and the outer cylinder 170 and the protective ring 169 are fixedly connected by bolts. The hard rod 181 rotates through the outer cylinder 170, and the top of the hard rod 181 is threadedly connected to the bottom of the insulating sleeve 121. Specifically, the protective ring 169 can protect the hard rod 181 and prevent the second substrate 165 from falling off from the outer cylinder 170.

[0045] Furthermore, two groups of sockets 132 are provided at the top of the support column 130, and the support column 130 provides an installation position for the sockets 132. The two groups of sockets 132 form a sixty-degree angle, and the elastic protective net 200 is plugged into the sockets 132. Specifically, the two groups of sockets 132 form a sixty-degree angle, which can facilitate the laying of the elastic protective net 200.

[0046] The use process of the present invention is as follows: those skilled in the art place the limit plate 162 in the middle of the first base plate 161, then tighten the fastening bolt 163, insert the outer cylinder 170 into the limit plate 162, and rotate the outer cylinder 170 at the same time to make the outer cylinder 170 and the limit plate 162 threadedly engaged. Then, the end of the first adjusting rod 164 is connected to the middle of the second adjusting rod 167 by a bolt, so that the second base plate 165 is matched with the outer cylinder 170, and the second base plate 165 is moved to a suitable position (according to the position adjustment of the universal wheel 168, when the device needs to be moved, the second base plate 165 is moved up, at this time, the second adjusting rod 167 is moved down, the first adjusting rod 164 is moved up, and the universal wheel 168 is in contact with the ground to prevent When the protective work is in progress, the second base plate 165 moves down and the universal wheel 168 does not contact the ground. Then, the limiting bolt 166 is tightened to complete the assembly of the limiting member 150. At the same time, the lower end of the insulating sleeve 121 is threadedly engaged with the upper end of the hard rod 181 to complete the assembly of the device. After the assembly is completed, the device is moved to the work station and the insulating sleeve 121 that cooperates with the hard rod 181 is rotated. At this time, the outer spiral groove 190 inside the hard rod 181 cooperates with the inner spiral groove 173 inside the outer cylinder 170, causing the hard rod 181, the thin rod 182 and the fastening rod 183 to move down, and the reset spring 175 is compressed. At this time, the drill bit 184 at the bottom of the fastening rod 183 can punch a hole in the ground. When the fastening rod 183 contacts the wall of the punched hole, Under the action of the torsion spring 189, the telescopic rod 188 is extended and moves outward on the gripping rod 186. Under the action of the telescopic rod 188, the gripping rod 186 is extended. At this time, the limit clamp 187 on the gripping rod 186 contacts the hole wall, so that the gripping rod 186 is clamped with the hole wall, thereby achieving the tightening effect (after the protection is completed, through the insulating sleeve 121 that cooperates with the hard rod 181, the outer spiral groove 190 inside the hard rod 181 is loosened from the inner spiral groove 173 inside the outer cylinder 170. Under the elastic force of the return spring 175, the tightening rod 183 moves backward rapidly. Under the action of the inner wall of the bottom of the outer cylinder 170, the telescopic rod 188 moves into the installation groove 185, causing the torsion spring 189 to be compressed, so that the gripping rod 18 6 and the telescopic rod 188 are retracted into the installation slot), the power supply 122 is turned on at this time, and the current of the power supply 122 flows out from the positive electrode of the power supply 122, flows into the electromagnetic guide rail 123 connected to the positive electrode of the power supply 122, flows through the armature slider 125 to the other electromagnetic guide rail 123, and then flows into the negative electrode of the power supply 122. Under the action of the current, the track current can form a magnetic field perpendicular to the surface of the electromagnetic guide rail 123 at the armature slider 125 (which can be regarded as a uniform magnetic field). The magnitude of the magnetic induction intensity is proportional to the magnitude of the current. Under the action of the magnetic field, a Lorentz force (the force exerted on a moving charge in a magnetic field, that is, the force exerted by the magnetic field on the moving charge, the formula of the Lorentz force is F=QvB) can be generated at the tail of the armature slider 125. Under the action of the Lorentz force,The armature slider 125 will drive the push rod 127 upward, thereby causing the support column 130 to move upward. At this time, under the action of the push rod 127, the telescopic spring 131 is stretched, thereby balancing the generated Lorentz force. After the support column 130 is stretched, the elastic protection net 200 can be laid to facilitate pothole protection. (Because the elastic force of the telescopic spring 131 changes linearly (F = -k·x), the elongation of the support column 130 is the same as the deformation of the telescopic spring 131. The Lorentz force (F = QvB) also changes linearly. Therefore, the elongation of the support column 130 can be changed by changing the magnitude of the current.) Then, the elastic protection net 200 is inserted into the socket 132 on the support column 130. At the same time, the bottom of the elastic protection net 200 is connected to the ground through a hook lock (not marked in the figure), and the pothole protection is completed.

[0047] The above description is merely a preferred embodiment of the present invention. Anyone skilled in the art may utilize the above-described technical solutions to modify the present invention or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention falls within the scope of protection claimed by the present invention.

Claims

1. A novel portable adjustable protective device, comprising a supporting device (100) and an elastic protective net (200), wherein the supporting device (100) and the elastic protective net (200) are each provided with three groups, and two adjacent groups of the supporting devices (100) are connected through the elastic protective net (200), the supporting device (100) comprises a telescopic member (110) and a limiting member (150), the telescopic member (110) is located at the upper end of the limiting member (150), and the limiting member (150) and the telescopic member (110) are connected by a thread, characterized in that: The telescopic member (110) includes a support column (130), and further includes a magnetic energy drive component (120) connected to the support column (130); The magnetic energy drive assembly (120) includes an insulating sleeve (121), a power supply (122) is fixedly installed at the bottom of the insulating sleeve (121), both poles of the power supply (122) are fixedly connected to electromagnetic guide rails (123), the outer side walls of the two groups of electromagnetic guide rails (123) are fixedly installed with multiple groups of linearly arranged magnets (124), the inner side walls of the two groups of electromagnetic guide rails (123) are clamped with the same armature slider (125), the armature slider (125) is slidably connected to the two groups of electromagnetic guide rails (123), the upper surface of the armature slider (125) is fixedly installed with an insulating partition (126), the upper surface of the insulating partition (126) is fixedly installed with a push rod (127), and the push rod (127) slides through the upper end of the insulating sleeve (121); A telescopic spring (131) is fixedly installed in the middle of the insulating sleeve (121), the top rod (127) is located in the middle of the telescopic spring (131), the top of the top rod (127) is fixedly connected to the support column (130), the bottom end of the support column (130) is fixedly connected to the other end of the telescopic spring (131), and the support column (130) slides through the top of the insulating sleeve (121); The limiting member (150) includes a displacement assembly (160), and the displacement assembly (160) includes a first base plate (161). The middle part of the first base plate (161) is clamped with a limiting plate (162). The side wall of the first base plate (161) is provided with three groups of circumferentially arranged fastening bolts (163). The three groups of fastening bolts (163) are all matched with the limiting plate (162). The side wall of the first base plate (161) is rotatably connected with three groups of circumferentially arranged first adjustment rods (164). The upper part of the first base plate (161) is provided with a second base plate (165). The second base plate (165) is aligned with the center of the first base plate (161). The side wall of the second base plate (165) is rotatably connected with three groups of circumferentially arranged second adjustment rods (167). The end of the first adjustment rod (164) is rotatably connected to the middle part of the second adjustment rod (167) by a bolt. The bottom end of the second adjustment rod (167) is fixedly mounted with a universal wheel (168).

2. A novel portable adjustable protective device according to claim 1, characterized in that: The displacement assembly (160) further comprises an outer cylinder (170), the outer side wall of the outer cylinder (170) is provided with two groups of symmetrically arranged limiting grooves (171), the bottom of the outer cylinder (170) is threadedly connected to the middle of the limiting plate (162), the outer cylinder (170) slides through the second base plate (165), the side wall of the second base plate (165) is provided with a limiting bolt (166), the limiting groove (171) is provided with a plurality of groups of linearly arranged threaded holes (172), and the limiting bolts (166) are threadedly engaged with the threaded holes (172).

3. A novel portable adjustable protective device according to claim 2, characterized in that: The limiting member (150) further comprises a gripping assembly (180), the gripping assembly (180) being located inside the outer cylinder (170), the gripping assembly (180) comprising a hard rod (181), a thin rod (182) being fixedly mounted at the bottom end of the hard rod (181), a fastening rod (183) being fixedly mounted at the bottom end of the thin rod (182), the fastening rod (183) slidingly passing through the bottom of the outer cylinder (170), and a drill bit (184) being fixedly mounted at the bottom end of the fastening rod (183).

4. A novel portable adjustable protective device according to claim 3, characterized in that: The hard rod (181), the thin rod (182) and the fastening rod (183) all slide through the outer cylinder (170); an inner spiral groove (173) is provided on the inner wall of the upper end of the outer cylinder (170); an outer spiral groove (190) is provided on the upper end of the hard rod (181); and the outer spiral groove (190) is engaged with the inner spiral groove (173).

5. A novel portable adjustable protective device according to claim 4, characterized in that: A fixed clamping plate (174) is fixedly installed at the middle of the inner wall of the outer cylinder (170), and the thin rod (182) slides through the fixed clamping plate (174). A return spring (175) is sleeved on the outside of the thin rod (182) located at the upper end of the fixed clamping plate (174). One end of the return spring (175) is fixedly connected to the upper end of the fixed clamping plate (174), and the other end of the return spring (175) is fixedly connected to the bottom end of the hard rod (181).

6. A novel portable adjustable protective device according to claim 4, characterized in that: The bottom end of the fastening rod (183) is provided with six groups of mounting grooves (185) arranged in a circumferential manner. The bottom ends of the six groups of mounting grooves (185) are rotatably connected to a gripping rod (186). The top ends of the gripping rods (186) are fixedly installed with a limiting clamp (187). The top ends of the six groups of mounting grooves (185) are rotatably connected to a telescopic rod (188). The telescopic rod (188) and the inner side wall of the mounting groove (185) are connected to the same torsion spring (189). The two ends of the torsion spring (189) are respectively fixedly connected to one side of the telescopic rod (188) and the inner side wall of the mounting groove (185).

7. The novel portable adjustable protective device according to claim 4, characterized in that: A protective ring (169) is fixedly mounted on the top of the outer cylinder (170), the hard rod (181) rotates and penetrates the outer cylinder (170), and the top of the hard rod (181) is threadedly connected to the bottom of the insulating sleeve (121).

8. The novel portable adjustable protective device according to claim 2, characterized in that: Two groups of insertion holes (132) are provided at the top of the support column (130), and an angle of sixty degrees is formed between the two groups of insertion holes (132). The elastic protection net (200) is plugged into the insertion holes (132).

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