An assembled PVC guardrail and a method of using the same

Abstract

The present invention belongs to the technical field of PVC guardrails, and specifically relates to an assembled PVC guardrail and a method for using the same, which includes a fixed seat and a column mounted on the fixed seat, and a warning shielding plate is mounted on the column; a large U-shaped groove and a small U-shaped groove are respectively provided on the column, and an inlet is provided on the column, and the inlet is connected to the large U-shaped groove and the small U-shaped groove respectively, and the warning shielding plate is alternately installed in the large U-shaped groove and the small U-shaped groove through the inlet, and a strip slide bar is vertically slidably installed in the column, and one end of the warning shielding plate is connected to the strip slide bar. In the process of the strip slide bar moving up, the strip slide bar drives the warning shielding plate to move up through the connection between the end of the warning shielding plate and the strip slide bar, so that the warning shielding plate gradually passes through the inlet and is separated from the large U-shaped groove and the small U-shaped groove and gradually unfolds, so that the warning shielding plate shields the maintenance part of the scenic area equipment to prevent high-temperature splashes generated during the maintenance process from splashing onto pedestrians.

Description

Technical Field

[0001] The invention belongs to the technical field of PVC guardrails, and specifically relates to an assembled PVC guardrail and a use method thereof. Background Art

[0002] Prefabricated PVC guardrail is a kind of fence product made of polyvinyl chloride (PVC) material and installed by assembly. It has good toughness, good weather resistance and corrosion resistance. Guardrail is mainly used for equipment isolation in scenic spots, such as isolating the entrance of sightseeing cableway and amusement facilities, etc., to prevent unauthorized personnel from entering.

[0003] At present, the scenic area guardrails supplied on the known market are all prefabricated structural guardrails. The prefabricated guardrails are mainly composed of columns, guard plates and connectors. During installation, the columns are pre-placed in cement, and the guard plates are connected to the columns through connectors to make the guardrails firmly connected.

[0004] Existing scenic area equipment requires regular maintenance or overhaul. During the maintenance process, equipment such as electric welders and angle grinders will be used. Since the height of the prefabricated guardrail is fixed after installation, the guardrail cannot block the high-temperature splashes generated by the electric welder and angle grinder, which can easily cause the high-temperature splashes to splash pedestrians and cause burns. Summary of the invention

[0005] The purpose of the present invention is to provide an assembled PVC guardrail and a method of using the same in order to solve the technical problems in the prior art.

[0006] The objectives of the present invention can be achieved through the following technical solutions: an assembled PVC guardrail, which includes a fixed seat and a column installed on the fixed seat, a warning shielding plate is installed on the column, and an avoidance component is installed inside the column; a large U-shaped groove and a small U-shaped groove are respectively provided on the column, and the large U-shaped groove and the small U-shaped groove are separated by a U-shaped plate, an inlet is provided on the column, and the inlet is connected to the large U-shaped groove and the small U-shaped groove respectively, and the warning shielding plate is alternately installed in the large U-shaped groove and the small U-shaped groove through the inlet, a strip slide bar is vertically slidably installed in the column, one end of the warning shielding plate is connected to the strip slide bar, and a connecting spring is installed on each section of the warning shielding plate.

[0007] As a further optimization or improvement of this solution, a limit frame is installed on the strip slide rod, a transmission groove is opened in the limit frame, racks are arranged at intervals on the inner walls on both sides of the transmission groove, and a guide rod is rotatably installed on the end of the U-shaped plate close to the inlet, and a transmission gear is installed on the guide rod, which meshes with the rack inside the transmission groove.

[0008] As a further optimization or improvement of the present solution, fastening bolts are installed on the upright column, and the fastening bolts fix the position of the strip-shaped sliding rod.

[0009] As a further optimization or improvement of this solution, the avoidance component includes push rod one and push rod two, and a giveway groove and a matching groove are respectively provided on the column, the giveway groove and the matching groove are connected to the large U-shaped groove, and push rod two and push rod one are respectively installed in the giveway groove and the matching groove for horizontal sliding.

[0010] As a further optimization or improvement of this solution, the avoidance component also includes a motor, the motor is installed in the column, the output end of the motor is connected to the driving gear, the push rod one and the push rod two are connected to the transmission rack, and the driving gear is meshed with the transmission rack.

[0011] As a further optimization or improvement of this solution, a distance sensor is installed on the column, and the distance sensor is connected to the motor.

[0012] As a further optimization or improvement of the present solution, a top cap is installed on the top of the strip-shaped sliding rod.

[0013] A method for using an assembled PVC guardrail, the method being applied to the assembled PVC guardrail as described above, the method comprising the following steps:

[0014] Step S1: first, loosen the fastening bolts and pull up the strip slide bar. During the upward movement of the strip slide bar, the strip slide bar drives the warning shielding plate to move upward through the connection between the end of the warning shielding plate and the strip slide bar.

[0015] Step S2: During the process of the warning shielding plate moving upward, the warning shielding plate gradually passes through the inlet and is separated from the large U-shaped groove and the small U-shaped groove. The warning shielding plate separated from the large U-shaped groove and the small U-shaped groove is gradually unfolded as the strip slide bar moves, so that the warning shielding plate shields the maintenance part of the scenic area equipment;

[0016] Step S3: By pushing the strip slide bar downward, the warning shield plate enters the large U-shaped groove and the small U-shaped groove through the inlet, and the strip slide bar meshes with the transmission gear through the internal rack of the transmission groove to drive the guide rod to rotate forward and reverse alternately;

[0017] Step S4: The warning shielding plate is guided during the process of the guide rod rotating alternately forward and backward, and each section of the warning shielding plate is introduced into the large U-shaped groove and the small U-shaped groove alternately in sequence, so that the warning shielding plate is folded inside the large U-shaped groove and the small U-shaped groove, thereby realizing the recovery of the warning shielding plate.

[0018] As a further optimization or improvement of this solution, step S4 specifically includes the following steps:

[0019] Step S41: When the distance sensor senses that an external object is approaching, the motor starts to operate, and the motor controls the driving gear to rotate. The driving gear meshes with the transmission rack, and the driving gear drives the transmission rack and the push rods 1 and 2 on the transmission rack to move synchronously;

[0020] Step S42: During the movement of the push rod 1, the push rod 1 pushes the warning shielding plate inside the vertical groove at one end of the large U-shaped groove to unfold it. During this process, the push rod 1 pushes the warning shielding plate to move inward to achieve the avoidance of the warning shielding plate;

[0021] Step S43: When the push rod pushes the warning shielding plate to move inward, the warning shielding plate inside the vertical groove at one end of the large U-shaped groove is unfolded, and at the same time, the warning shielding plate inside the vertical groove at one end of the large U-shaped groove moves toward the vertical groove at the other end of the large U-shaped groove, so that the number of warning shielding plates inside the vertical groove at the other end of the large U-shaped groove increases;

[0022] Step S44: When the push rod 2 moves toward the yielding groove, the space of the vertical groove at the other end of the large U-shaped groove increases, so that the folding degree of the warning shielding plate inside the vertical groove at the other end of the large U-shaped groove increases.

[0023] Beneficial effects of the present invention:

[0024] (1) When it is necessary to repair the scenic area equipment, loosen the fastening bolts and pull up the strip slide bar. During the upward movement of the strip slide bar, the strip slide bar drives the warning shield plate to move up through the connection between the end of the warning shield plate and the strip slide bar, so that the warning shield plate gradually passes through the inlet and is separated from the large U-shaped groove and the small U-shaped groove. The warning shield plate separated from the large U-shaped groove and the small U-shaped groove is gradually unfolded as the strip slide bar moves, so that the warning shield plate covers the maintenance part of the scenic area equipment to prevent high-temperature splashes generated during the maintenance process from splashing onto pedestrians.

[0025] (2) When an external object approaches the warning shield, the distance sensor on the column can sense it in time and transmit the sensed information to the motor controller, and the motor drives push rods 1 and 2 to move synchronously.

[0026] Specifically, during the movement of the push rod, the push rod pushes the warning shield plate inside the vertical groove at one end of the large U-shaped groove to expand it. During this process, the push rod pushes the warning shield plate to move inward to achieve an avoidance effect. At the same time, during the expansion of the warning shield plate, the warning strip on the warning shield plate gradually widens and finally presents a strip shape, thereby dynamically reminding the vehicle to avoid collision due to the vehicle being too close to the warning shield plate.

[0027] Specifically, when the push rod 1 pushes the warning shield plate to move inward, the warning shield plate inside the vertical groove at one end of the large U-shaped groove is unfolded, and at the same time, the warning shield plate inside the vertical groove at one end of the large U-shaped groove moves toward the vertical groove at the other end of the large U-shaped groove, so that the warning shield plate inside the vertical groove at the other end of the large U-shaped groove is increased. When the push rod 2 moves toward the yielding groove, the space in the vertical groove at the other end of the large U-shaped groove increases, so that the folding degree of the warning shield plate inside the vertical groove at the other end of the large U-shaped groove is increased, thereby improving the impact resistance of the warning shield plate.

[0028] (3) When the warning shield plate needs to be recovered, push the strip slide bar downward. At this time, the warning shield plate inside the limit frame enters the large U-shaped groove and the small U-shaped groove through the entrance. The strip slide bar engages with the transmission gear through the rack inside the transmission groove to drive the guide rod to rotate alternately forward and reverse, so that the guide rod guides the warning shield plate, and each section of the warning shield plate is alternately introduced into the large U-shaped groove and the small U-shaped groove in sequence, so that the warning shield plate is folded inside the large U-shaped groove and the small U-shaped groove. There is no need to manually fold the warning shield plate, thereby improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the connection between the warning shield and the column.

[0032] Figure 3 This is a schematic diagram of the connection between the warning shield plate and the large U-shaped groove and the small U-shaped groove respectively.

[0033] Figure 4 This is a schematic diagram of the installation position of push rod one and push rod two.

[0034] Figure 5 It is a schematic diagram of the transmission between the guide rod and the transmission groove.

[0035] Figure 6 Schematic diagram of the fastening bolt structure.

[0036] Figure 7 To avoid the overall structural diagram of the component.

[0037] Figure 8 It is a schematic diagram of the transmission connection between the transmission rack and the driving gear.

[0038] Fig. 9 This is a schematic diagram of the expanded structure of the warning shield.

[0039] The following are marked in the figure: 1. fixing seat; 2. column; 3. distance sensor; 4. warning shielding plate; 5. strip sliding bar; 6. top cap; 7. large U-shaped groove; 8. small U-shaped groove; 9. avoidance component; 901. push rod one; 902. push rod two; 903. give way groove; 904. transmission rack; 905. motor; 906. driving gear; 907. matching groove; 10. inlet; 11. U-shaped plate; 12. guide stick; 13. transmission gear; 14. limit frame; 15. transmission groove; 16. connecting spring; 17. fastening bolt. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 4 , Fig. 9 A prefabricated PVC guardrail comprises a fixing seat 1 and a column 2 installed on the fixing seat 1, a warning shielding plate 4 is installed on the column 2, and an avoidance component 9 is installed inside the column 2; a large U-shaped groove 7 and a small U-shaped groove 8 are respectively provided on the column 2, and the large U-shaped groove 7 and the small U-shaped groove 8 are separated by a U-shaped plate 11, an inlet 10 is provided on the column 2, and the inlet 10 is connected to the large U-shaped groove 7 and the small U-shaped groove 8 respectively, and the warning shielding plate 4 is alternately installed in the large U-shaped groove 7 and the small U-shaped groove 8 through the inlet 10, a strip slide bar 5 is vertically slidably installed in the column 2, one end of the warning shielding plate 4 is connected to the strip slide bar 5, and a connecting spring 16 is installed on each section of the warning shielding plate 4.

[0042] Specifically, a top cap 6 is installed on the top of the strip-shaped sliding rod 5 .

[0043] Specifically, a fastening bolt 17 is installed on the column 2, and the fastening bolt 17 fixes the position of the strip-shaped sliding rod 5.

[0044] It should be noted that see Figure 5 The racks inside the transmission groove 15 are alternately installed on the inner walls on both sides of the transmission groove 15, so when the strip slide bar 5 is inserted into the column 2, the strip slide bar 5 will mesh with the transmission gear 13 through the racks inside the transmission groove 15 to drive the guide rod 12 to rotate alternately forward and reverse. The connecting spring 16 on the warning shielding plate 4 is used to maintain the folding angle of the warning shielding plate 4 so that it is evenly arranged in the large U-shaped groove 7 and the small U-shaped groove 8 on the column 2.

[0045] Guardrail installation;

[0046] First, the fixing seat 1 is pre-placed in cement. After the cement is dried, any one end of the warning shielding plate 4 is rotated and installed on the strip slide bar 5, and the strip slide bar 5 is vertically inserted into the column 2. At the same time, the warning shielding plate 4 is pushed into the large U-shaped groove 7 and the small U-shaped groove 8 through the inlet 10. During the process of inserting the strip slide bar 5 into the column 2, the strip slide bar 5 is meshed with the transmission gear 13 through the internal rack of the transmission groove 15 to drive the guide rod 12 to rotate forward and reverse alternately. Figure 4, so that the guide rod 12 guides the warning shield plate 4, and each section of the warning shield plate 4 is alternately introduced into the large U-shaped groove 7 and the small U-shaped groove 8 in sequence, so that the warning shield plate 4 is folded inside the large U-shaped groove 7 and the small U-shaped groove 8. When the strip slide bar 5 is inserted into the column 2, tighten the fastening bolts 17, and fix the strip slide bar 5 by fastening the bolts 17 to complete the installation of the guardrail.

[0047] The strip slide bar 5 of the present invention is engaged with the transmission gear 13 through the internal rack of the transmission groove 15 to drive the guide rod 12 to rotate alternately forward and reverse, so that the guide rod 12 guides the warning shield plate 4, and each section of the warning shield plate 4 is alternately introduced into the large U-shaped groove 7 and the small U-shaped groove 8 in sequence, and the warning shield plate 4 is folded inside the large U-shaped groove 7 and the small U-shaped groove 8, without manually folding the warning shield plate 4, thereby improving the installation efficiency.

[0048] Use of guardrails;

[0049] When the scenic area equipment needs to be repaired, loosen the fastening bolt 17 and pull up the strip slide bar 5. Figure 2 and Fig. 9 In the process of the strip sliding bar 5 moving upward, the strip sliding bar 5 drives the warning shielding plate 4 to move upward through the connection between the end of the warning shielding plate 4 and the strip sliding bar 5, so that the warning shielding plate 4 gradually passes through the inlet 10 and is separated from the large U-shaped groove 7 and the small U-shaped groove 8. The warning shielding plate 4 separated from the large U-shaped groove 7 and the small U-shaped groove 8 is gradually unfolded as the strip sliding bar 5 moves, so that the warning shielding plate 4 shields the maintenance part of the scenic area equipment to prevent high-temperature splashes generated during the maintenance process from splashing onto pedestrians.

[0050] It should be noted that, during the upward movement of the strip slide bar 5 , the warning shielding plate 4 that is separated from the large U-shaped groove 7 and the small U-shaped groove 8 is restricted inside the limit frame 14 to prevent the warning shielding plate 4 from excessive displacement.

[0051] When the warning shielding plate 4 needs to be recovered, the strip slide bar 5 is pushed downward. At this time, the warning shielding plate 4 inside the limit frame 14 enters the large U-shaped groove 7 and the small U-shaped groove 8 through the inlet 10, and the strip slide bar 5 meshes with the transmission gear 13 through the internal rack of the transmission groove 15 to drive the guide rod 12 to rotate forward and reverse alternately. Figure 4 , so that the guide rod 12 guides the warning shielding plate 4, and each section of the warning shielding plate 4 is alternately introduced into the large U-shaped groove 7 and the small U-shaped groove 8 in sequence, so that the warning shielding plate 4 is folded inside the large U-shaped groove 7 and the small U-shaped groove 8.

[0052] It should be noted that see Figure 4 A chamfer is provided on the entrance 10. When the warning shielding plate 4 inside the limit frame 14 enters the large U-shaped groove 7 and the small U-shaped groove 8 through the entrance 10, the chamfer on the entrance 10 can assist the warning shielding plate 4 to enter, thereby improving the smoothness of resetting the warning shielding plate 4.

[0053] See also Figure 3-Figure 5 A limit frame 14 is installed on the strip slide bar 5, a transmission groove 15 is opened in the limit frame 14, and racks are arranged at intervals on the inner walls on both sides of the transmission groove 15. A guide rod 12 is rotatably installed at one end of the U-shaped plate 11 close to the inlet 10, and a transmission gear 13 is installed on the guide rod 12, and the transmission gear 13 is meshed with the rack inside the transmission groove 15.

[0054] It should be noted that see Figure 5 The internal racks of the transmission groove 15 are alternately installed on the inner walls on both sides of the transmission groove 15. Therefore, when the strip slide bar 5 is inserted into the column 2, the strip slide bar 5 will engage with the transmission gear 13 through the internal racks of the transmission groove 15 to drive the guide rod 12 to rotate alternately forward and reverse.

[0055] See also Figure 4 , Figure 6-Figure 8 The avoidance component 9 includes a push rod 1 901 and a push rod 2 902. A clearance groove 903 and a matching groove 907 are respectively provided on the column 2. The clearance groove 903 and the matching groove 907 are connected to the large U-shaped groove 7. The push rod 2 902 and the push rod 1 901 are respectively installed in the clearance groove 903 and the matching groove 907 for horizontal sliding.

[0056] Specifically, the avoidance component 9 also includes a motor 905, the motor 905 is installed in the column 2, the output end of the motor 905 is connected to the driving gear 906, the push rod 1 901 and the push rod 2 902 are connected to the transmission rack 904, and the driving gear 906 is meshed with the transmission rack 904.

[0057] Specifically, the distance sensor 3 is installed on the column 2 , and the distance sensor 3 is connected to the motor 905 .

[0058] It should be noted that a warning strip is installed on each section of the warning shielding plate 4. Referring to the distance sensor 3 in FIG., when the warning shielding plate 4 is folded, the warning strip on the warning shielding plate 4 is linear when viewed from a distance; during the unfolding process of the warning shielding plate 4, the warning strip on the warning shielding plate 4 gradually widens and finally presents a strip shape. The motor 905 is connected to the controller.

[0059] It should be noted that in actual use, vehicles, pedestrians and external objects will inevitably collide with the guardrail, which can easily cause damage to the guardrail.

[0060] Therefore, when an external object approaches the warning baffle plate 4, the distance sensor 3 on the column 2 can sense it in time and transmit the sensed information to the controller of the motor 905. The controller controls the operation of the motor 905, and the motor 905 controls the rotation of the driving gear 906. The driving gear 906 engages with the transmission rack 904, and the driving gear 906 drives the transmission rack 904 and the push rod 1 901 and the push rod 2 902 on the transmission rack 904 to move synchronously.

[0061] See also Figure 4 During the movement of the push rod 901, the push rod 901 pushes the warning shield plate 4 inside the vertical groove at one end of the large U-shaped groove 7 to expand it. During this process, the push rod 901 pushes the warning shield plate 4 to move inward to achieve an avoidance effect. At the same time, during the expansion of the warning shield plate 4, the warning strip on the warning shield plate 4 gradually widens and finally presents a strip shape, thereby dynamically reminding the vehicle to avoid collision due to the vehicle being too close to the warning shield plate 4.

[0062] When the push rod 1 901 pushes the warning shielding plate 4 to move inward, the warning shielding plate 4 inside the vertical groove at one end of the large U-shaped groove 7 is unfolded, and at the same time, the warning shielding plate 4 inside the vertical groove at one end of the large U-shaped groove 7 moves toward the vertical groove at the other end of the large U-shaped groove 7, so that the warning shielding plate 4 inside the vertical groove at the other end of the large U-shaped groove 7 is increased. When the push rod 2 902 moves toward the yielding groove 903, the space in the vertical groove at the other end of the large U-shaped groove 7 is increased, so that the folding degree of the warning shielding plate 4 inside the vertical groove at the other end of the large U-shaped groove 7 is increased, and the impact resistance of the warning shielding plate 4 is improved.

[0063] See also Figure 1-Figure 6 As shown, the present invention is a method for using an assembled PVC guardrail, the method is applied to the assembled PVC guardrail as described in the above embodiment, and the method comprises the following steps:

[0064] Step S1: First, loosen the fastening bolt 17, and pull up the strip slide bar 5. During the upward movement of the strip slide bar 5, the strip slide bar 5 drives the warning shielding plate 4 to move upward through the connection between the end of the warning shielding plate 4 and the strip slide bar 5;

[0065] Step S2: During the upward movement of the warning shielding plate 4, the warning shielding plate 4 gradually passes through the inlet 10 and is separated from the large U-shaped groove 7 and the small U-shaped groove 8. The warning shielding plate 4 separated from the large U-shaped groove 7 and the small U-shaped groove 8 is gradually unfolded as the strip slide bar 5 moves, so that the warning shielding plate 4 shields the maintenance part of the scenic area equipment;

[0066] Step S3: By pushing the strip slide bar 5 downward, the warning shielding plate 4 enters the large U-shaped groove 7 and the small U-shaped groove 8 through the inlet 10, and the strip slide bar 5 meshes with the transmission gear 13 through the internal rack of the transmission groove 15 to drive the guide rod 12 to rotate alternately forward and reverse;

[0067] Step S4: The guide rod 12 guides the warning shielding plate 4 during the process of alternating forward and reverse rotation, and each section of the warning shielding plate 4 is alternately introduced into the large U-shaped groove 7 and the small U-shaped groove 8 in sequence, so that the warning shielding plate 4 is folded inside the large U-shaped groove 7 and the small U-shaped groove 8, thereby realizing the recovery of the warning shielding plate 4.

[0068] like Figure 6-Figure 8As shown, as a preferred embodiment of the present invention, step S4 specifically includes the following steps:

[0069] Step S41: When the distance sensor 3 senses that an external object is approaching, the motor 905 runs, and the motor 905 controls the driving gear 906 to rotate. The driving gear 906 meshes with the transmission rack 904, and the driving gear 906 drives the transmission rack 904 and the push rod 1 901 and the push rod 2 902 on the transmission rack 904 to move synchronously;

[0070] Step S42: During the movement of the push rod 901, the push rod 901 pushes the warning shielding plate 4 inside the vertical groove at one end of the large U-shaped groove 7 to unfold it. During this process, the push rod 901 pushes the warning shielding plate 4 to move inward, so that the warning shielding plate 4 avoids.

[0071] Step S43: When the push rod 901 pushes the warning shielding plate 4 inward, the warning shielding plate 4 in the vertical groove at one end of the large U-shaped groove 7 is unfolded, and at the same time, the warning shielding plate 4 in the vertical groove at one end of the large U-shaped groove 7 moves toward the vertical groove at the other end of the large U-shaped groove 7, so that the warning shielding plate 4 in the vertical groove at the other end of the large U-shaped groove 7 increases;

[0072] Step S44: When the second push rod 902 moves toward the yielding groove 903, the space of the vertical groove at the other end of the large U-shaped groove 7 increases, so that the folding degree of the warning shielding plate 4 inside the vertical groove at the other end of the large U-shaped groove 7 increases.

[0073] The working principle of the present invention is: when the scenic area equipment needs to be repaired, loosen the fastening bolt 17 and pull up the strip slide bar 5. Figure 2 and Fig. 9 In the process of the strip sliding bar 5 moving upward, the strip sliding bar 5 drives the warning shielding plate 4 to move upward through the connection between the end of the warning shielding plate 4 and the strip sliding bar 5, so that the warning shielding plate 4 gradually passes through the inlet 10 and is separated from the large U-shaped groove 7 and the small U-shaped groove 8. The warning shielding plate 4 separated from the large U-shaped groove 7 and the small U-shaped groove 8 is gradually unfolded as the strip sliding bar 5 moves, so that the warning shielding plate 4 shields the maintenance part of the scenic area equipment to prevent high-temperature splashes generated during the maintenance process from splashing onto pedestrians.

[0074] When the warning shielding plate 4 needs to be recovered, the strip slide bar 5 is pushed downward. At this time, the warning shielding plate 4 inside the limit frame 14 enters the large U-shaped groove 7 and the small U-shaped groove 8 through the inlet 10, and the strip slide bar 5 meshes with the transmission gear 13 through the internal rack of the transmission groove 15 to drive the guide rod 12 to rotate forward and reverse alternately. Figure 4 , so that the guide rod 12 guides the warning shielding plate 4, and each section of the warning shielding plate 4 is alternately introduced into the large U-shaped groove 7 and the small U-shaped groove 8 in sequence, so that the warning shielding plate 4 is folded inside the large U-shaped groove 7 and the small U-shaped groove 8.

[0075] When an external object approaches the warning baffle plate 4, the distance sensor 3 on the column 2 can sense it in time and transmit the sensed information to the controller of the motor 905. The motor 905 is controlled by the controller to run, and the motor 905 controls the driving gear 906 to rotate. The driving gear 906 engages with the transmission rack 904, and the driving gear 906 drives the transmission rack 904 and the push rod 1 901 and the push rod 2 902 on the transmission rack 904 to move synchronously.

[0076] See also Figure 4 During the movement of the push rod 901, the push rod 901 pushes the warning shield plate 4 inside the vertical groove at one end of the large U-shaped groove 7 to expand it. During this process, the push rod 901 pushes the warning shield plate 4 to move inward to achieve an avoidance effect. At the same time, during the expansion of the warning shield plate 4, the warning strip on the warning shield plate 4 gradually widens and finally presents a strip shape, thereby dynamically reminding the vehicle to avoid collision due to the vehicle being too close to the warning shield plate 4.

[0077] When the push rod 1 901 pushes the warning shielding plate 4 to move inward, the warning shielding plate 4 inside the vertical groove at one end of the large U-shaped groove 7 is unfolded, and at the same time, the warning shielding plate 4 inside the vertical groove at one end of the large U-shaped groove 7 moves toward the vertical groove at the other end of the large U-shaped groove 7, so that the warning shielding plate 4 inside the vertical groove at the other end of the large U-shaped groove 7 is increased. When the push rod 2 902 moves toward the yielding groove 903, the space in the vertical groove at the other end of the large U-shaped groove 7 is increased, so that the folding degree of the warning shielding plate 4 inside the vertical groove at the other end of the large U-shaped groove 7 is increased, and the impact resistance of the warning shielding plate 4 is improved.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An assembled PVC guardrail, characterized by: It comprises a fixing seat (1) and a column (2) mounted on the fixing seat (1), a warning shielding plate (4) is mounted on the column (2), and an avoidance component (9) is mounted inside the column (2); The column (2) is provided with a large U-shaped groove (7) and a small U-shaped groove (8), respectively, the large U-shaped groove (7) and the small U-shaped groove (8) are separated by a U-shaped plate (11), the column (2) is provided with an inlet (10), the inlet (10) is connected to the large U-shaped groove (7) and the small U-shaped groove (8), respectively, the warning shielding plate (4) is alternately installed in the large U-shaped groove (7) and the small U-shaped groove (8) through the inlet (10), a strip slide bar (5) is vertically slidably installed in the column (2), one end of the warning shielding plate (4) is connected to the strip slide bar (5), and a connecting spring (16) is installed on each section of the warning shielding plate (4); A limit frame (14) is installed on the strip-shaped slide bar (5), a transmission groove (15) is provided in the limit frame (14), racks are arranged at intervals on the inner walls of both sides of the transmission groove (15), a guide rod (12) is rotatably installed on one end of the U-shaped plate (11) close to the inlet (10), a transmission gear (13) is installed on the guide rod (12), and the transmission gear (13) is meshed with the rack inside the transmission groove (15); A fastening bolt (17) is installed on the column (2), and the fastening bolt (17) fixes the position of the strip-shaped sliding rod (5); The avoidance assembly (9) comprises a push rod 1 (901) and a push rod 2 (902), a clearance groove (903) and a matching groove (907) are respectively provided on the column (2), the clearance groove (903) and the matching groove (907) are connected to the large U-shaped groove (7), and the push rod 2 (902) and the push rod 1 (901) are respectively installed in the clearance groove (903) and the matching groove (907) for transverse sliding; The avoidance component (9) further comprises a motor (905), the motor (905) is installed in the column (2), the output end of the motor (905) is connected to a driving gear (906), the push rod 1 (901) and the push rod 2 (902) are connected to a transmission rack (904), and the driving gear (906) is meshed with the transmission rack (904); A distance sensor (3) is mounted on the upright post (2), and the distance sensor (3) is connected to the motor (905).

2. The assembled PVC guardrail according to claim 1, characterized in that: A top cap (6) is installed on the top of the strip-shaped sliding rod (5).

3. A method for using an assembled PVC guardrail, characterized in that: The method is applied to the assembled PVC guardrail as described in any one of claims 1-2 above, and the method comprises the following steps: Step S1: first, loosen the fastening bolt (17), pull up the strip slide bar (5), and during the upward movement of the strip slide bar (5), the strip slide bar (5) drives the warning shielding plate (4) to move upward through the connection between the end of the warning shielding plate (4) and the strip slide bar (5); Step S2: During the upward movement of the warning shielding plate (4), the warning shielding plate (4) gradually passes through the inlet (10) and is separated from the large U-shaped groove (7) and the small U-shaped groove (8). The warning shielding plate (4) separated from the large U-shaped groove (7) and the small U-shaped groove (8) is gradually unfolded as the strip slide bar (5) moves, so that the warning shielding plate (4) shields the maintenance part of the scenic area equipment. Step S3: by pushing the strip-shaped slide bar (5) downward, the warning shielding plate (4) enters the large U-shaped groove (7) and the small U-shaped groove (8) through the inlet (10), and the strip-shaped slide bar (5) meshes with the transmission gear (13) through the internal rack of the transmission groove (15), driving the guide rod (12) to rotate alternately forward and reverse; Step S4: The guide rod (12) guides the warning shielding plate (4) during the process of rotating alternately forward and reverse, and each section of the warning shielding plate (4) is alternately introduced into the large U-shaped groove (7) and the small U-shaped groove (8) in sequence, so that the warning shielding plate (4) is folded inside the large U-shaped groove (7) and the small U-shaped groove (8), thereby realizing the recovery of the warning shielding plate (4).

4. The method for using the assembled PVC guardrail according to claim 3 is characterized in that: The step S4 specifically comprises the following steps: Step S41: When the distance sensor (3) senses that an external object is approaching, the motor (905) starts to operate, and the motor (905) controls the driving gear (906) to rotate. The driving gear (906) meshes with the transmission rack (904), and the driving gear (906) drives the transmission rack (904) and the push rod 1 (901) and the push rod 2 (902) on the transmission rack (904) to move synchronously; Step S42: During the movement of the push rod 1 (901), the push rod 1 (901) pushes the warning shielding plate (4) inside the vertical groove at one end of the large U-shaped groove (7) to unfold it. During this process, the push rod 1 (901) pushes the warning shielding plate (4) to move inwards, thereby achieving avoidance of the warning shielding plate (4); Step S43: During the process of the push rod 1 (901) pushing the warning shielding plate (4) inward, the warning shielding plate (4) inside the vertical groove at one end of the large U-shaped groove (7) is unfolded, and at the same time, the warning shielding plate (4) inside the vertical groove at one end of the large U-shaped groove (7) moves toward the vertical groove at the other end of the large U-shaped groove (7), so that the number of warning shielding plates (4) inside the vertical groove at the other end of the large U-shaped groove (7) increases; Step S44: When the push rod 2 (902) moves toward the yielding groove (903), the space of the vertical groove at the other end of the large U-shaped groove (7) increases, so that the folding degree of the warning shielding plate (4) inside the vertical groove at the other end of the large U-shaped groove (7) increases.

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