Sectional type combined guardrail

Abstract

The sectional type combined guardrail comprises a plurality of pairs of stand columns vertically and fixedly arranged on the edge of a roadbed and a plurality of pairs of lifting rods in one-to-one correspondence with the stand columns, the stand columns are provided with penetrating cavities in the axial direction of the stand columns, and the lifting rods corresponding to the stand columns are vertically arranged in the corresponding penetrating cavities; a top plate is further supported between the top ends of each pair of stand columns, the lifting rods are provided with orthographic projections located on the top plate, and a plurality of vertical rods located between every two stand columns are connected to the top plate. And the lifting rod is connected with a telescopic driver to drive the lifting rod to be ejected out of or return to the penetrating cavity, and further comprises a triggering assembly for triggering the lifting driver. The problem that in the prior art, protection of a guardrail on approaching tourists may be lacked is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of protective fence equipment, and in particular to a segmented combined guardrail. Background Art

[0002] Guardrails are usually installed on the side of the road near the cliff (or other road sides that need protection) to play a protective role and reduce the risk of vehicles running off the road. In the prior art, steel-structured guardrails are usually installed on the edge of the roadbed. The guardrails can be combined in sections, which is more flexible to construct. At the same time, each section can withstand a certain impact alone. Adjacent sections can be set closer together and can also withstand a certain impact together (when accidentally hitting between them), which has a better protective effect. Warning signs and reflective paint on the guardrails can also play a role in warning of risks. In recent years, in some mountainous areas rich in tourism resources, tourist roads (such as the G348 National Highway in Yichang City, Hubei Province) have been popular, and guardrails are also needed beside such similar roads. However, the guardrails in the prior art generally only consider the protective reminder function for passing vehicles. Tourists may walk to the roadside beside similar roads (some roads may have cliffs, which are dangerous but also have beautiful scenery to attract tourists to visit), and the height of the guardrails is usually short, which may not provide protection for tourists. If the guardrails are raised, it will affect the observation of the outside by people in passing vehicles. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a segmented combined guardrail, which solves the problem that the guardrail in the prior art may lack protection for approaching tourists.

[0004] According to an embodiment of the present invention, a segmented combined guardrail includes a plurality of pairs of columns fixed vertically at the edge of a roadbed, and a plurality of pairs of lifting rods corresponding to each pair of columns, wherein the columns are provided with through cavities along their axial direction, and the corresponding lifting rods are vertically provided in the corresponding through cavities; a top plate is also provided between the top ends of each pair of columns, and the lifting rods have a positive projection on the top plate, and a plurality of vertical rods located between two columns are connected on the top plate; the lifting rods are connected with a telescopic drive to drive them to eject or return to the through cavity, and also include a trigger assembly for triggering the lifting drive. The role played by the columns is similar to that in the prior art, and the lifting rods can be raised to a higher level under the drive of the telescopic drive, and the top plate is lifted at the same time, so that the height of the overall guardrail becomes higher, so as to protect the approaching tourists, and the trigger assembly can be triggered when the tourists approach to start the telescopic drive, and the contact is triggered after the tourists leave, and the lifting rods return to their original positions, so that the guardrails provided in this way meet the dual protection requirements for driving and approaching tourists, and solve the problem that the guardrails in the prior art may lack protection for approaching tourists.

[0005] Furthermore, it also includes a groove recessed at the edge of the roadbed, and a column is arranged on the outside of the groove, and a cover plate is also arranged on the groove. The trigger assembly includes an elastic pressure block arranged on the cover plate and a pressure plate arranged in the groove. The elastic pressure block is connected to a pressure column extending downward into the groove and capable of abutting against the pressure plate or fixedly connected to the pressure plate. The telescopic drive is arranged in the groove and the telescopic drive is provided with a push switch capable of abutting against the pressure plate.

[0006] Furthermore, a mounting groove is provided at the upper end of the inner wall of the groove on the outer side, and the telescopic drive is installed in the mounting groove. The lifting rod includes a fixed section extending downwardly to the mounting groove and an extended section that is telescopic relative to the fixed section. The lower end of the fixed section is connected to the output end of the telescopic drive to drive the extended section to telescope relative to the fixed section. The extended section extends upward and can be against the top plate.

[0007] Furthermore, the cover plate is provided with a first through hole communicating with the inside and outside of the groove, and the bottom of the groove is provided with a drainage pipe communicating with the inside and outside thereof.

[0008] Furthermore, the end of the extension section away from the fixed section is also fixedly connected with a top block, and a top head is provided on the top block to protrude upwards, and a top groove for the top head to be pressed into is provided on the top plate.

[0009] Furthermore, the elastic pressure block includes a positioning ring fixed on the cover plate, and an elastic cap buckled with the positioning ring. The cover plate is also penetrated by a second through hole coaxial with the positioning ring and located inside the positioning ring. The pressure column penetrates the second through hole and passes upward through the positioning ring leaving a gap between the pressure column and the elastic cap.

[0010] Furthermore, the second perforation includes a reduced diameter section and a larger diameter section located above the reduced diameter section, and a mounting platform is arranged between them. The upper end of the pressure column is also fixedly connected with a butt head, and the butt head is arranged close to the elastic cap.

[0011] Furthermore, a return spring surrounding the pressure column is arranged between the mounting platform and the abutment head.

[0012] Furthermore, the cross section of the column is a horseshoe-shaped structure, and both sides of the upper end surface are respectively recessed with slots for the top plate to be inserted into.

[0013] Furthermore, the horseshoe-shaped structural opening of the column is arranged to face the outside of the edge of the roadbed, and the width of the opening is greater than the diameter of the lifting rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The trigger assembly is set to start the telescopic drive when it is triggered by tourists. The operation of the telescopic drive causes the lifting rod to push up the top plate, so that the height of the overall guardrail becomes higher, so as to protect the approaching tourists. The set trigger assembly can be triggered to start the telescopic drive when the tourists approach. After the tourists leave, the trigger contact returns to its original position. The guardrail set in this way meets the dual protection needs of driving and approaching tourists, and solves the problem that the guardrail in the prior art may lack protection for approaching tourists. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the installation of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the installation of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 3 The enlarged schematic diagram of the local structure of the embodiment of the present invention Figure 1 ;

[0019] Figure 4 The enlarged schematic diagram of the local structure of the embodiment of the present invention Figure 2 ;

[0020] Figure 5 Schematic diagram of the segmented guardrail structure of an embodiment of the present invention Figure 1 ;

[0021] Figure 6 Schematic diagram of the segmented guardrail structure of an embodiment of the present invention Figure 2 ;

[0022] Figure 7 It is a schematic diagram of the top view of the cover plate part of an embodiment of the present invention;

[0023] Figure 8 for Figure 3 A schematic diagram of the enlarged local structure at center A;

[0024] Fig. 9 This is a schematic diagram of a pressure plate connection structure in another implementation manner of an embodiment of the present invention;

[0025] Fig.10 for Figure 3 A magnified schematic diagram of the local structure at B in the middle;

[0026] Fig.11 A schematic top view of a horseshoe-shaped structure and a top block according to an embodiment of the present invention;

[0027] In the above drawings:

[0028] Roadbed 1, column 2, lifting rod 3, through cavity 4, top plate 5, vertical rod 6, reinforcing rod 7, telescopic driver 8, groove 9, cover plate 10, water retaining plate 11, first perforation 12, drain pipe 13, support bar 14, elastic pressure block 15, pressure plate 16, pressure column 17, press switch 18, installation groove 19, fixed section 20, extension section 21, positioning ring 22, elastic cap 23, clamping ring 24, second perforation 25, diversion groove 26, support block 27, guide column 28, buffer spring 29, pressing section 30, pressing section 31, transition section 32, reduced diameter section 33, enlarged diameter section 34, butt 35, reset spring 36, top block 37, top head 38, top groove 39, magnetic suction block 40, cross bar 41, third perforation 42, clamping groove 43. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In an exemplary embodiment, Figure 1-7As shown, the present embodiment provides a segmented combined guardrail, which includes a plurality of pairs of columns 2 vertically fixedly arranged at the edge of a roadbed 1, the height of these columns 2 is similar to that of the columns 2 in the prior art, and they mainly play a role in protecting passing vehicles. At the same time, the present invention also provides a plurality of pairs of lifting rods 3 corresponding to each pair of columns 2, and these lifting rods 3 are used to provide protection for approaching tourists; more specifically, the columns 2 are provided with through cavities 4 along their axial directions, and the corresponding lifting rods 3 are vertically arranged in the corresponding through cavities 4. When there is no need to provide protection for tourists, the lifting rods 3 are in an initial state, that is, the lifting rods 3 are all located in the through cavities 4, and only the columns 2 can be seen from the outside; a top plate 5 is also supported between the top ends of each pair of columns 2, and the lifting rods 3 have a positive projection located on the top plate 5, and the top rods are arranged horizontally between the upper ends of the two columns 2, and cooperate with the two columns 2 to play a better protective role; further, after the lifting rods 3 are in operation, the top plate 5 can be lifted upwards, and at this time, the top plate 5 cooperates with the lifting rods 3 to play a protective role, and the top plate 5 is A plurality of vertical rods 6 are connected between the two columns 2, and these vertical rods 6 fill the gap between the two columns 2 (and between the two lifting rods 3), thereby preventing tourists from accidentally falling from a larger gap. At the same time, the two columns 2 of adjacent groups also have a smaller spacing distance similar to that in the prior art, and a reinforcing rod 7 can be added to connect them into one (through bolt connection, which is convenient for installation), playing a role similar to that of the vertical rods 6 filling the gap; the lifting rod 3 is connected to a telescopic drive 8 to drive it to be ejected or returned to the through cavity 4, and the segmented combined guardrail also includes a trigger component for triggering the lifting drive, and the trigger component is used to receive a trigger from a tourist, thereby serving as a basis for judging whether to start the telescopic drive 8; compared with the guardrail in the prior art, the present invention realizes protection of vehicles through the columns 2, and at the same time, after the tourist triggers the trigger component, the lifting rod 3 is raised and the top plate 5 is lifted, so that the height of the overall guardrail becomes higher, which plays a protective role for tourists and solves the problem that the guardrail in the prior art may lack protection for approaching tourists.

[0032] In further schemes, such as Figure 1-6 As shown, the present invention is arranged on the edge of the roadbed 1 to be protected, and specifically includes a groove 9 which is recessed and arranged at the edge of the roadbed 1, and the column 2 is arranged on the outer side of the groove 9 (i.e., the side away from the roadbed 1), and a cover plate 10 is also arranged on the groove 9. The arranged groove 9 can also play the role of a drainage ditch, and a first perforation 12 for drainage is arranged on the cover plate 10, and a drainage pipe 13 connecting the inside and outside of the groove 9 is also arranged at the bottom of the groove 9. Rainwater flows downward into the groove 9 through the first perforation 12, and then can be discharged through the drainage pipe 13. In more detail, the arranged cover plate 10 is detachable, and support bars 14 are also arranged on the inner and outer sides of the upper end of the groove 9 for holding the cover plate 10, so as to realize the detachability of the cover plate 10;

[0033] In further detail, the trigger assembly of the present invention includes an elastic pressure block 15 provided on the cover plate 10 and a pressure plate 16 provided in the groove 9, the elastic pressure block 15 is connected to a pressure column 17 extending downward into the groove 9 and capable of abutting against the pressure plate 16, the telescopic drive 8 is provided in the groove 9 and the telescopic drive 8 is provided with a press switch 18 capable of abutting against the pressure plate 16, the elastic pressure block 15 is used to receive a trigger from a tourist, such as when a tourist approaches and steps on the elastic pressure block 15, so that the pressure column 17 moves downward and the pressure plate 16 also moves downward accordingly, and then the press switch 18 is pressed downward to start the telescopic drive 8. After the telescopic drive 8 is started, the The lifting rod 3 is retracted in a delayed closing manner, for example, if the switch 18 is not pressed again for 10 or 5 minutes after being pressed, it is retracted, and it is restarted if it is pressed again. In the peak season with many tourists, the opening time can be set to a longer time period, such as 9 am to 7 pm, and it can be adjusted in time according to the specific situation; further, the groove 9 in the present invention also serves as a drain pipe 13, and the telescopic drive 8 is installed in the groove 9. In order to prevent the telescopic drive 8 from being adversely affected by drainage, an installation groove 19 is further provided at the upper end of the inner wall of the groove 9 on the outside, and the telescopic drive 8 is installed in the installation groove 19. The groove 9 has a large depth degree, and both ends can also be connected to the outside, cooperate with the setting of the drain pipe 13, so that during the drainage process, water is mainly located at the bottom of the groove 9, and the water level is at a lower position, so that it is not easy for water to contact with the mounting groove 19, thereby making the telescopic drive 8 operate more safely; in more detail, the lifting rod 3 includes a fixed section 20 fixedly extended downward to the mounting groove 19 and an extension section 21 that is relatively telescopic to the fixed section 20, the lower end of the fixed section 20 is connected to the output end of the telescopic drive 8 to drive the extension section 21 to telescope relative to the fixed section 20, the extension section 21 extends upward and can be against the top plate 5, the specific telescopic drive 8 can be a cylinder, and the fixed section 20 has Slightly lower than the end of the column 2, so that when the telescopic drive 8 is running, the extension section 21 can extend upward to the top of the end of the column 2, and the top plate 5 is lifted in the process; in a more detailed scheme, the elastic pressing block, the pressing plate 16, the pressing column 17 and other structures provided in the present application are all closer to one side of the installation groove 19, and the first through hole 12 is provided on the other side of the cover plate 10 away from the installation groove 19, so that when rainwater passes through the first through hole 12, it is farther away from the installation groove 19 and will not accidentally go into the installation groove 19. At the same time, the first through hole 12 and the elastic pressing block 15, the pressing plate 16 and the pressing column 17 and other structures are staggered, and rainwater will not fall directly on them;In a further and more detailed solution, the elastic pressure block 15 is arranged above the cover plate 10. More specifically, the elastic pressure block 15 includes a positioning ring 22 fixedly arranged on the cover plate 10, and an elastic cap 23 buckled with the positioning ring 22. The lower end of the elastic cap 23 is provided with a clamping ring 24 clamped with the inner ring of the positioning ring 22, so that the positioning ring 22 and the elastic cap 23 are buckled and connected. The cover plate 10 is also penetrated by a second through hole 25 that is coaxial with the positioning ring 22 and located in the positioning ring 22. The pressure column 17 penetrates the second through hole 25 and passes upward through the positioning ring 22 and leaves a gap between the elastic cap 23. The positioning ring 22 can be an integral structure with the cover plate 10, or fixed together by threaded connection, welding, etc., so that the positioning ring 22 surrounds the second through hole 25 and is higher than the second through hole 25. Rainwater generally does not overflow the positioning ring 22 (except for heavy rain). , the elastic cap 23 and the positioning ring 22 are buckled, and can also prevent rainwater from entering the positioning ring 22. Even in heavy rain, it can prevent rainwater from directly entering the positioning ring 22 and passing through the second through-hole downward into the groove 9. In a further solution, a diversion groove 26 staggered with the second through-hole 25 can be set on the top surface of the cover plate 10, and one end of the diversion groove 26 is connected to the upper end of the first through-hole 12, and the other end is close to the edge of the cover plate 10 near the column 2 and is located at a higher position. In this way, the inclined diversion groove 26 can divert rainwater on the outer side of the cover plate 10 to the first through-hole 12, so that rainwater leaves the vicinity of the second through-hole 25 faster. In a further solution, a water retaining plate 11 can be fixedly connected to the lower wall of the cover plate 10, and the water retaining plate 11 is located between the first through-hole 12 and the second through-hole 25, so as to better prevent rainwater from the first through-hole 12 from reaching the other side below the cover plate 10. ;

[0034] like Figure 3 , 4As shown in 8 and 9, the top surface of the elastic cap 23 can be arc-shaped and made of elastic rubber material. The arc-shaped top surface is higher than the positioning ring 22. When the tourist steps on the elastic cap 23, the inner top surface of the elastic cap 23 contacts the top of the set pressure column 17 after the downward deformation, and then continues to press downward to achieve the purpose of pressing the pressure plate 16 through the pressure column 17. In a further detailed scheme, the side of the mounting groove 19 and the groove 9 are connected, and a support block 27 is fixedly provided at the connection point. The pressure plate 16 is arranged across the support block 27. The upper end portion located in the groove 9 is the pressure column 17, and the lower end portion located in the mounting groove 19 is the trigger point of the press switch 18. A guide column 28 is also provided on the support block 27. The guide column 28 extends vertically and slides through the pressure plate 16. A buffer spring 29 is also arranged around the guide column 28 and is located between the pressure plate 16 and the support block 27. The pressure plate 16 is downwardly pressed by the buffer spring 29. After the tourist walks away, the downward pressure is released and the buffer spring 29 is released. The pressing plate 16 is pushed upward to return to its initial position, but the pressing switch 18 does not immediately start the telescopic drive 8 to retract the extension section 21, but uses a delay method to maintain it for a period of time before retracting the extension section 21; in further detail, the pressing switch 18 and the pressing plate 16 may be in contact at the beginning, or there may be a small gap, and under the action of the pressing column 17, the pressing plate 16 only needs to move downward a small distance to realize the opening of the pressing switch 18, similar to a pressure sensor, which triggers the pressing switch 18 when it senses the downward pressure on the pressing plate 16; in another embodiment, the set pressing plate 16 can also be a segmented structure, that is, it includes a pressing section 30 that is in sliding contact with the guide column 28 and a pressing section 31 that abuts against the pressing column 17, the pressing section 31 is located below the pressing section 30 and the two are connected by an inclined transition section 32, so that when the pressing column 17 is pressed downward, the pressing section 31 drags the pressing section 30 downward, so that the pressing section 30 triggers the pressing switch 18.

[0035] like Figure 3 , 4As shown in Figures 8 and 9, in a further detailed solution, the pressure plate 16 and the pressure column 17 can also be fixedly connected (the two pressure columns 17 shown in the figure correspond to one pressure plate 16, which can increase the probability of stepping on. When the pressure plate 16 and the pressure column 17 are fixed, they need to correspond one to one and be fixed as one. The cover plate 10 also only needs to be provided with one elastic pressure block 15 corresponding to the pressure column 17). In this way, when the pressure column 17 moves downward, the pressure plate 16 can better follow the downward movement, thereby realizing a smoother implementation. Now, for the triggering of the push switch 18, in further detail, the second through hole 25 includes a reduced diameter section 33 and a bracket section 34 located above the reduced diameter section 33, and a mounting platform is provided between them. The upper end of the pressure column 17 is also fixedly connected to a head 35, and the head 35 is arranged close to the elastic cap 23. The head 35 is used to contact the elastic cap 23 and then move downward under the push of the elastic cap 23, indirectly pushing the pressure column 17 downward, and the second through hole 25 has a large upper and a small lower structure, and a reset can be set in the bracket section 34 at the upper end. The spring 36, i.e. the return spring 36, surrounds the outer upper end of the pressure column 17 and is located in the bracket section 34, and the upper and lower ends are respectively against the head 35 and the mounting platform, so that when the tourist's foot leaves the elastic cap 23, the elastic cap 23 will rebound upward, and the return spring 36 will also push the pressure column 17 upward to reset upward. If the elastic cap 23 does not rebound correctly upward, the pressure column 17 can also push upward with the assistance of the return spring 36, and the elastic cap 23 is pushed upward by the head 35, so that the elastic cap 23 obtains the initial power of resetting upward, and then relies on its elasticity to return to the initial position; further, the positioning ring 22 provided in the present scheme is higher than the cover plate 10, and when the tourist steps on it, the sole of the foot (shoe sole) will have a convex feeling, thereby playing the role of reminding the tourist, the tourist can move away, and then a reminder board can be set near the guardrail to inform the tourist of the starting method of the guardrail, and before the interval time arrives (i.e. the aforementioned 10 minutes or 5 minutes) stepping on the elastic cap 23 again can maintain the top plate 5 state (or raise the top plate 5 again).

[0036] like Figure 1-6As shown in Figure 10, in the present invention, the extension section 21 moves upward under the drive of the telescopic driver 8 to lift the top plate 5. At the same time, the end of the extension section 21 away from the fixed section 20 is also fixedly connected to a top block 37, and the top block 37 is also provided with a top head 38 protruding upward. The top plate 5 is provided with a top groove 39 for the top head 38 to push into. During the top process of the extension section 21, the top head 38 first pushes into the top groove 39, and then pushes the top plate 5 upward, so that the top plate 5 can move upward with the extension section 21 more stably. The size of the top groove 39 is slightly larger than the top head 38, so that the top insertion can be achieved more smoothly. In a more detailed scheme, A magnetic block 40 (such as a magnet block) can be embedded on the inner top surface of the top groove 39, and the top head 38 can be made of iron. After the top head 38 enters the top groove 39, it is attracted to the magnetic block 40 to increase the connection strength between the top block 37 and the top plate 5, so that the top plate 5 can move upward with the extension section 21 more stably. At the same time, a cross bar 41 can be added between the two columns 2 to make the integrity stronger, and a third through hole 42 can be provided on the cross bar 41 for each vertical rod 6 to penetrate (the inner diameter of the third through hole 42 can be slightly larger than the outer diameter of the vertical rod 6 to ensure that the vertical rod 6 moves smoothly with the top plate 5 upward). In this way, during the up and down movement of the top plate 5, the vertical rod 6 also moves up and down relative to each cross rod 41, so that the protective effect is enhanced. The cross rod 41 can also be arranged in multiples up and down, and during the movement of the entire top plate 5, the vertical rod 6 is never completely separated from the cross rod 41 located at the highest point, so as to ensure that the vertical rod 6 is always located in the third through hole 42, and the vertical rod 6 is ensured to move smoothly with the top plate 5; further, the vertical rod 6 and cross rod 41 can also enhance the overall strength between the top plate 5 and the column 2, so that the protective strength of the overall guardrail is enhanced; in more detail, the extension section 21 is a telescopic The top block 37 arranged in the fixed section 20 can be larger than the end surface of the fixed section 20 so as to completely cover the end surface of the fixed section 20. At the same time, at the initial stage (i.e., when the extension section 21 has not moved upward), the distance between the top block 37 and the top plate 5 is small, and the distance between the magnetic block 40 in the top groove 39 on the top plate 5 and the top head 38 on the top block 37 is also correspondingly small, and they attract each other, which also helps to stabilize the top plate 5 (it can also be further arranged so that the top head 38 is completely adsorbed together with the magnetic block 40 in the top groove 39, or the top head 38 is directly clamped together with the top plate 5).

[0037] like Figure 1-11As shown, in a further scheme, the cross-section of the column 2 is a horseshoe-shaped structure, and the opening of the horseshoe structure is away from the groove 9 toward the edge of the roadbed 1. The side of the horseshoe structure facing the groove 9 is thicker, so that the protective surface facing the roadbed 1 has greater strength and has a better protective effect, while the two sides of the opening are getting thinner and thinner, which plays a role in assisting the stability of the structure while saving materials. The opening width of the horseshoe structure is larger than the diameter of the lifting rod 3, so that the interior can be easily maintained and inspected through the opening position. In a further scheme, both sides of the upper end surface of the column 2 are also recessed with grooves for the top plate 5 to be inserted into. In this way, when the extension section 21 is not pushed upward, the two sides of the two ends of the top plate 5 are limited in the grooves, and at the same time cooperate with the magnetic adsorption of the magnetic block 40 and the top head 38, which ultimately makes the top plate 5 more stable.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A segmented combined guardrail, characterized in that: It includes a plurality of pairs of columns fixed vertically at the edge of the roadbed, and a plurality of pairs of lifting rods corresponding to each pair of the columns, wherein the columns are provided with through cavities along their axial directions, and the corresponding lifting rods are vertically arranged in the corresponding through cavities; a top plate is also supported between the top ends of each pair of the columns, and the lifting rods have a positive projection on the top plate, and a plurality of vertical rods located between the columns in pairs are connected to the top plate; the lifting rods are connected to a telescopic drive to drive them to be ejected or returned to the through cavity, and also include a trigger component for triggering the lifting drive.

2. The segmented combined guardrail according to claim 1, characterized in that: It also includes a groove recessed at the edge of the roadbed, and the column is arranged on the outside of the groove, and a cover plate is also arranged on the groove. The trigger assembly includes an elastic pressure block arranged on the cover plate and a pressure plate arranged in the groove, the elastic pressure block is connected to a pressure column extending downward into the groove and capable of abutting against the pressure plate or fixedly connected to the pressure plate, the telescopic drive is arranged in the groove and the telescopic drive is provided with a push switch capable of abutting against the pressure plate.

3. The segmented combined guardrail according to claim 2, characterized in that: The upper end of the inner wall of the groove on the outer side is also provided with a mounting groove, the telescopic driver is installed in the mounting groove, the lifting rod includes a fixed section extending downward to the mounting groove and an extension section telescopic relative to the fixed section, the lower end of the fixed section is connected to the output end of the telescopic driver to drive the extension section to telescope relative to the fixed section, and the extension section extends upward and can be against the top plate.

4. The segmented combined guardrail according to claim 3, characterized in that: The cover plate is also provided with a first through hole communicating with the inside and outside of the groove, and the bottom of the groove is also provided with a drainage pipe communicating with the inside and outside.

5. The segmented combined guardrail according to claim 3, characterized in that: The end of the extension section away from the fixed section is also fixedly connected with a top block, and the top block is also provided with a top head protruding upwards, and the top plate is provided with a top groove for the top head to be pressed into.

6. The segmented combined guardrail according to claim 2, characterized in that: The elastic pressure block includes a positioning ring fixedly set on the cover plate, and an elastic cap buckled with the positioning ring. The cover plate is also penetrated by a second through hole coaxial with the positioning ring and located inside the positioning ring. The pressure column penetrates the second through hole and passes upward through the positioning ring with a gap left between the pressure column and the elastic cap.

7. The segmented combined guardrail according to claim 6, characterized in that: The second perforation includes a reduced diameter section and a larger diameter section located above the reduced diameter section, and a mounting platform is arranged between them. The upper end of the pressure column is also fixedly connected with a butt head, and the butt head is arranged close to the elastic cap.

8. The segmented combined guardrail according to claim 7, characterized in that: A return spring surrounding the pressure column is also arranged between the mounting platform and the abutment head.

9. The segmented combined guardrail according to any one of claims 1 to 8, characterized in that: The cross section of the column is a horseshoe-shaped structure, and both sides of the upper end surface are respectively recessed with slots for the top plate to be inserted into.

10. The segmented combined guardrail according to claim 9, characterized in that: The horseshoe-shaped structural opening of the column is arranged facing outwardly toward the edge of the roadbed, and the opening width is greater than the diameter of the lifting rod.

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