A bendable PVC safety guardrail

Abstract

The present invention belongs to the technical field of safety guardrails, and specifically relates to a bendable PVC safety guardrail, which includes a cement platform and a fixed seat installed on the cement platform, a column is installed on the fixed seat, a plug block is slidably installed in the column, and the column is connected to the cross bar through the plug block; an inclined slot is provided in the column, a slider is installed on the plug block, the slider and the inclined slot are slidably matched, a slot is provided on the plug block, a plug is fixedly installed on the cross bar, the plug is inserted into the slot, and a chamfer is provided on the plug, a disc spring is installed in the column, and a vertical bar assembly is installed on the cross bar. If the length of the cross bar is long, the slider on the plug block cooperates with the inclined slot to make the plug block and the cross bar move as a whole into the inside of the column, so as to provide sufficient installation space for the cross bar; if the bending angle of the cross bar is too large or too small, firstly insert one end of the cross bar into the slot in the plug block through the plug, so that the plug block and the cross bar rotate synchronously, and the other end of the cross bar is gradually aligned with another plug block and inserted.

Description

Technical Field

[0001] The invention belongs to the technical field of safety guardrails, and in particular relates to a bendable PVC safety guardrail. Background Art

[0002] PVC safety guardrail is a kind of protective facility used to protect people from potential dangers and injuries. It is widely used in road traffic, construction engineering, public facilities, etc. Safety guardrails are different from other types of guardrails. Safety guardrails have height requirements in design. For example, on traffic roads, the height of roadside guardrails is generally between 0.5 and 1.5 meters; on highways and bridges, guardrails are usually more than two meters high to ensure safety protection.

[0003] The safety guardrail is mainly composed of columns, cross bars, vertical bars and connecting parts. The main installation process of the safety guardrail is as follows; first, the columns are embedded in the concrete. After the concrete reaches the required strength, the cross bars are connected to the columns using bolts, nuts or connecting parts, and then the vertical bars are fixed to the cross bars.

[0004] The safety guardrails of the prior art have the following technical problems:

[0005] First, when the guardrail needs to be installed at a corner, the crossbar needs to be bent, and then the bent crossbar needs to be connected to the column. During the bending process of the crossbar, the bending angle and length of the crossbar are difficult to control. Since the installation positions of the two columns near the corners will have a certain deviation, and the bending force of the crossbar is not accurate, it is easy to cause the crossbar to fail to align with the column.

[0006] Second, since the safety guardrail has a certain height, if the vertical poles are arranged densely, it will block people's sight and affect the observation of the surrounding environment or traffic conditions;

[0007] Third, the safety guardrails in the prior art are mostly rigidly connected, which are easily damaged when impacted, thus reducing the service life of the guardrails. Summary of the invention

[0008] The purpose of the present invention is to provide a bendable PVC safety guardrail to solve the technical problems in the prior art in view of the deficiencies in the prior art.

[0009] The objective of the present invention can be achieved through the following technical scheme: a bendable PVC safety guardrail, which includes a cement platform and a fixed seat installed on the cement platform, a column is installed on the fixed seat, a plug block is slidably installed in the column, and the column is connected to the cross bar through the plug block; an inclined groove is provided in the column, a slider is installed on the plug block, the slider slides with the inclined groove, a slot is provided on the plug block, a plug is fixedly installed on the cross bar, the plug is inserted into the slot, and a chamfer is provided on the plug, a disc spring is installed in the column, the disc spring contacts the plug block, a vertical rod assembly is installed on the cross bar, and a positioning support assembly is installed between the columns.

[0010] As a further optimization or improvement of the present solution, the vertical bar assembly includes a main vertical plate and a secondary vertical plate. The main vertical plate is mounted on the cross bar through a clamping sleeve, and the main vertical plate is fixed to the cross bar through connecting bolts.

[0011] As a further optimization or improvement of this solution, a top groove is opened on the top of the main vertical plate, and the secondary vertical plate is rotatably installed in the top groove. A fastening bolt is installed on one side of the main vertical plate, and the secondary vertical plate is limited by tightening the fastening bolt.

[0012] As a further optimization or improvement of the present solution, the positioning support assembly includes a base plate and a connecting plate. The connecting plates are welded at both ends of the base plate, and the connecting plates are connected to the columns by fixing bolts.

[0013] As a further optimization or improvement of this solution, the positioning support assembly also includes a card frame, the card frame is fixedly installed on the substrate, a matching block is slidably installed inside the card frame, the matching block is connected to the inner wall of the card frame through a spring, and the cross bar abuts the matching block.

[0014] As a further optimization or improvement of the present solution, a rotating shaft is rotatably mounted on the base plate, a supporting plate is fixedly connected to the rotating shaft, and the supporting plate is connected to the matching block via a connecting rod.

[0015] As a further optimization or improvement of this solution, the surface of the secondary vertical plate is sprayed with light-absorbing paint.

[0016] Beneficial effects of the present invention:

[0017] (1) If the crossbar is long, when connecting the crossbar to the column, first insert one end of the crossbar into the slot in the plug block through the plug to connect the crossbar to the plug block. Then push the crossbar. With the cooperation of the slider and the inclined slot on the plug block, the plug block and the crossbar move as a whole into the column to provide sufficient installation space for the other end of the crossbar. Then insert the other end of the crossbar into the slot in another plug block through the plug to complete the installation of the crossbar.

[0018] If the bending angle of the crossbar is too large or too small, first insert one end of the crossbar into the slot in the plug-in block through a plug to connect one end of the crossbar to the plug-in block, then rotate the crossbar so that the plug-in block and the crossbar rotate synchronously, so that the other end of the crossbar gradually aligns with the other plug-in block, then insert the other end of the crossbar into the slot in the other plug-in block through a plug so that the crossbar can be installed smoothly.

[0019] (2) The present invention installs a rotatable auxiliary vertical plate on the top of the main vertical plate, and then rotates the auxiliary vertical plates on the main vertical plate out at intervals, thereby changing the density of the top of the vertical bar assembly to prevent the vertical bar assembly from blocking people's sight and affecting the observation of the surrounding environment or traffic conditions. The present invention does not change the number of vertical bar assemblies, that is, under the premise that the strength of the guardrail remains unchanged, the vertical bar assembly is prevented from blocking the pedestrian's vision.

[0020] (3) If an external object collides with the crossbar, the crossbar slides into the column through the insert block, and the insert block squeezes the disc spring, thereby achieving buffering of the crossbar;

[0021] Specifically, if the impact force is large, the crossbar will move further into the column. During this process, the crossbar squeezes the spring through the matching block, and the crossbar and the base plate gradually form a triangular structure, so that the impact force borne by the crossbar is transmitted to the base plate, thereby increasing the impact resistance of the crossbar.

[0022] Specifically, if the external impact force increases further, while the cross bar drives the matching block to move, the matching block pushes the support plate to rotate through the connecting rod, so that the support plate supports the cross bar, maintaining the triangular structure composed of the cross bar and the base plate, thereby improving the stability of the guardrail structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 Schematic diagram of the connection between the vertical rod assembly and the horizontal rod.

[0026] Figure 3 It is a schematic diagram of the overall structure of the vertical rod assembly.

[0027] Figure 4 This is a schematic diagram of the connection structure between the positioning support assembly and the column.

[0028] Figure 5 It is a schematic diagram of the connection structure between the cross bar and the plug block.

[0029] Figure 6 It is a schematic diagram of the inclined chute structure.

[0030] Figure 7 This is a schematic diagram of the normal state of the crossbar.

[0031] Figure 8 This is a schematic diagram of the normal state of the crossbar being impacted.

[0032] Fig. 9 It is a schematic diagram of the overall status of the positioning support assembly.

[0033] Fig.10 Schematic diagram of the crossbar and base plate structure.

[0034] The following are marked in the figure: 1. Cement platform; 2. Upright column; 3. Cross bar; 4. Vertical bar assembly; 401. Main vertical plate; 402. Secondary vertical plate; 403. Top groove; 404. Fastening bolt; 5. Positioning support assembly; 501. Base plate; 502. Connecting plate; 503. Fixing bolt; 504. Card frame; 505. Matching block; 506. Rotating shaft; 507. Support plate; 508. Connecting rod; 509. Spring; 6. Fixed seat; 7. Card sleeve; 8. Connecting bolt; 9. Insert block; 10. Plug; 11. Slider; 12. Disc spring; 13. Slot; 14. Inclined slide groove. DETAILED DESCRIPTION

[0035] 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.

[0036] See also Figure 1-Figure 6 A bendable PVC safety guardrail includes a cement platform 1 and a fixing seat 6 installed on the cement platform 1, a column 2 is installed on the fixing seat 6, a plug block 9 is slidably installed in the column 2, and the column 2 is connected to the cross bar 3 through the plug block 9; an inclined slide groove 14 is provided in the column 2, a slider 11 is installed on the plug block 9, the slider 11 slides with the inclined slide groove 14, a slot 13 is provided on the plug block 9, a plug 10 is fixedly installed on the cross bar 3, the plug 10 is inserted into the slot 13, and a chamfer is provided on the plug 10, a disc spring 12 is installed in the column 2, the disc spring 12 contacts the plug block 9, a vertical rod assembly 4 is installed on the cross bar 3, and a positioning support assembly 5 is installed between the columns 2.

[0037] It should be noted that the column 2 has an inclined slot 14 formed inside, and the slider 11 on the insert block 9 cooperates with the inclined slot 14, so that the insert block 9 can be pushed into the column 2 and rotated. The angle between the connecting plate 502 and the clamping frame 504 is a right angle, and the installation angle of the column 2 is positioned by fitting the connecting plate 502 and the clamping frame 504 to the column 2.

[0038] Install guardrails;

[0039] First, two columns 2 are connected by positioning support assembly 5, and then the angle and distance of columns 2 are controlled to reduce installation error. The fixing seat 6 at the bottom of column 2 is pre-set on both sides of cement platform 1, and after cement on cement platform 1 is dried, cross bar 3 is bent to a fixed angle, and then the cross bar 3 is inserted into the slot 13 on the plug block 9 through the plug 10, so as to realize the connection between cross bar 3 and column 2, and then the vertical bar assembly 4 is connected to cross bar 3.

[0040] Specifically, the positioning support assembly 5 is connected to the column 2 in the following manner; first, the two columns 2 are placed flat on the ground, and then the connecting plate 502 and the card frame 504 are fitted at the right angles of the column 2, and the connecting plate 502 is fixed to the column 2 by the fixing bolts 503. After the positioning support assembly 5 fixes the column 2, the angle between the two columns 2 is fixed so that the angle of the positioning support assembly 5 is equal to the bending angle of the cross bar 3, which facilitates the installation and positioning of the guardrail.

[0041] Specifically, if the length of the bent cross bar 3 is longer, during the process of connecting the cross bar 3 with the column 2, first insert one end of the cross bar 3 into the slot 13 in the plug block 9 through the plug 10 to connect one end of the cross bar 3 to the plug block 9, then push the cross bar 3, and with the cooperation of the slider 11 and the inclined groove 14 on the plug block 9, move the plug block 9 and the cross bar 3 as a whole into the column 2 to provide sufficient installation space for the other end of the cross bar 3, and then insert the other end of the cross bar 3 into the slot 13 in another plug block 9 through the plug 10 to complete the installation of the cross bar 3.

[0042] If the bending angle of the cross bar 3 is too large or too small, the present invention adjusts the cross bar 3 by rotating the insert block 9 so that the cross bar 3 corresponds to the insert block 9, so that the cross bar 3 can be installed smoothly.

[0043] It should be noted that the cross bar 3 can be connected to the plug 10 by threaded connection or welding. This fixed connection method is a prior art and will not be described in detail in the present invention, which does not affect the integrity of this solution.

[0044] See also Figure 1-Figure 3 The vertical bar assembly 4 includes a main vertical plate 401 and a secondary vertical plate 402 . The main vertical plate 401 is mounted on the cross bar 3 through a clamping sleeve 7 , and then the main vertical plate 401 is fixed to the cross bar 3 through connecting bolts 8 .

[0045] Specifically, a top groove 403 is provided at the top of the main vertical plate 401 , and the secondary vertical plate 402 is rotatably installed in the top groove 403 . A fastening bolt 404 is installed at one side of the main vertical plate 401 , and the secondary vertical plate 402 is limited by tightening the fastening bolt 404 .

[0046] Specifically, the surface of the secondary vertical plate 402 is sprayed with light-absorbing paint.

[0047] It should be noted that since the safety guardrail has a certain height, if the vertical bar assembly 4 is arranged too closely, it will block people's sight and affect the observation of the surrounding environment or traffic conditions. For example, if the vertical bar assembly 4 is set too high or too closely on the road, it will block part of the driver's or pedestrian's sight, increasing safety hazards.

[0048] In order to avoid the above situation, the present invention firstly puts the sleeve 7 on the main vertical plate 401 on the cross bar 3, and then fixes the vertical bar assembly 4 on the cross bar 3 through the connecting bolts 8, so that the main vertical plate 401 is installed on the cross bar 3 at an equal distance.

[0049] By installing a rotatable auxiliary vertical plate 402 on the top of the main vertical plate 401, and then rotating the auxiliary vertical plates 402 on the main vertical plate 401 out at intervals, for example Figure 1 , thereby changing the density of the top of the vertical rod assembly 4, so as to avoid the vertical rod assembly 4 blocking people's sight and affecting the observation of the surrounding environment or traffic conditions. The present invention does not change the number of vertical rod assemblies 4, that is, under the premise that the strength of the guardrail remains unchanged, the vertical rod assembly 4 is prevented from blocking the pedestrian's vision.

[0050] It should be noted that the secondary vertical plate 402 has a light-absorbing property. When an oncoming vehicle turns on its high beam at night, the secondary vertical plate 402 can absorb the incident light and reduce the blurring of the pedestrian's or driver's vision.

[0051] See also Figure 4-Figure 10 The positioning support assembly 5 includes a base plate 501 and a connecting plate 502 . The connecting plates 502 are welded at both ends of the base plate 501 , and the connecting plates 502 are connected to the column 2 via fixing bolts 503 .

[0052] Specifically, the positioning support assembly 5 also includes a card frame 504 , the card frame 504 is fixedly installed on the substrate 501 , a matching block 505 is slidably installed inside the card frame 504 , the matching block 505 is connected to the inner wall of the card frame 504 through a spring 509 , and the cross bar 3 abuts against the matching block 505 .

[0053] Specifically, a rotating shaft 506 is rotatably mounted on the base plate 501 , a supporting plate 507 is fixedly connected to the rotating shaft 506 , and the supporting plate 507 is connected to the matching block 505 via a connecting rod 508 .

[0054] It should be noted that, compared with guardrails at other positions, the guardrails at the corners have lower impact resistance, so when an external object hits the crossbar 3 at the corner, the crossbar 3 is very easy to deform.

[0055] If an external object collides with the crossbar 3, the crossbar 3 slides into the interior of the column 2 through the insert block 9, and the insert block 9 squeezes the disc spring 12, thereby achieving buffering of the crossbar 3; if the impact force is large, the crossbar 3 will move further into the interior of the column 2. In this process, see Figure 7-Figure 8, the cross bar 3 squeezes the spring 509 through the matching block 505, and the cross bar 3 and the base plate 501 gradually form a triangular structure, so that the impact force borne by the cross bar 3 is transmitted to the base plate 501, thereby increasing the impact resistance of the cross bar 3. When the external impact force further increases, the cross bar 3 drives the matching block 505 to move, and the matching block 505 pushes the support plate 507 to rotate through the connecting rod 508, so that the support plate 507 supports the cross bar 3. Fig.10 , entering and maintaining the triangular structure formed by the cross bar 3 and the base plate 501, thereby improving the stability of the guardrail structure.

[0056] Working principle of the present invention:

[0057] Guardrail installation;

[0058] Installation of the columns 2 and crossbars 3: First, connect the two columns 2 through the positioning support assembly 5, and then control the angle and distance of the columns 2 to reduce the installation error. Pre-set the fixing seat 6 at the bottom of the column 2 on both sides of the cement platform 1, wait for the cement on the cement platform 1 to dry, bend the crossbar 3 to a fixed angle, and then insert the crossbar 3 into the slot 13 on the plug block 9 through the plug 10, so as to achieve the connection between the crossbar 3 and the column 2, and then connect the vertical bar assembly 4 to the crossbar 3.

[0059] Specifically, the positioning support assembly 5 is connected to the column 2 in the following manner; first, the two columns 2 are placed flat on the ground, and then the connecting plate 502 and the card frame 504 are fitted at the right angles of the column 2, and the connecting plate 502 is fixed to the column 2 by the fixing bolts 503. After the positioning support assembly 5 fixes the column 2, the angle between the two columns 2 is fixed so that the angle of the positioning support assembly 5 is equal to the bending angle of the cross bar 3, which facilitates the installation and positioning of the guardrail.

[0060] Specifically, if the length of the bent cross bar 3 is longer, during the process of connecting the cross bar 3 with the column 2, first insert one end of the cross bar 3 into the slot 13 in the plug block 9 through the plug 10 to connect one end of the cross bar 3 to the plug block 9, then push the cross bar 3, and with the cooperation of the slider 11 and the inclined groove 14 on the plug block 9, move the plug block 9 and the cross bar 3 as a whole into the column 2 to provide sufficient installation space for the other end of the cross bar 3, and then insert the other end of the cross bar 3 into the slot 13 in another plug block 9 through the plug 10 to complete the installation of the cross bar 3.

[0061] If the bending angle of the cross bar 3 is too large or too small, first insert one end of the cross bar 3 into the slot 13 in the plug block 9 through the plug 10 to connect one end of the cross bar 3 to the plug block 9, then rotate the cross bar 3 to make the plug block 9 and the cross bar 3 rotate synchronously, so that the other end of the cross bar 3 gradually aligns with the other plug block 9, and then insert the other end of the cross bar 3 into the slot 13 in the other plug block 9 through the plug 10, so that the cross bar 3 can be installed smoothly.

[0062] Installation of the vertical bar assembly 4: First, put the sleeve 7 on the main vertical plate 401 on the cross bar 3, and then fix the vertical bar assembly 4 on the cross bar 3 through the connecting bolts 8, so that the main vertical plate 401 is installed on the cross bar 3 at equal distances. By installing a rotatable auxiliary vertical plate 402 on the top of the main vertical plate 401, and then rotating the auxiliary vertical plates 402 on the main vertical plate 401 at intervals, for example Figure 1 , thereby changing the density of the top of the vertical rod assembly 4, so as to avoid the vertical rod assembly 4 blocking people's sight and affecting the observation of the surrounding environment or traffic conditions. The present invention does not change the number of vertical rod assemblies 4, that is, under the premise that the strength of the guardrail remains unchanged, the vertical rod assembly 4 is prevented from blocking the pedestrian's vision.

[0063] Use status;

[0064] If an external object collides with the crossbar 3, the crossbar 3 slides into the interior of the column 2 through the insert block 9, and the insert block 9 squeezes the disc spring 12, thereby achieving buffering of the crossbar 3; if the impact force is large, the crossbar 3 will move further into the interior of the column 2. In this process, see Figure 7-Figure 8 , the cross bar 3 squeezes the spring 509 through the matching block 505, and the cross bar 3 and the base plate 501 gradually form a triangular structure, so that the impact force borne by the cross bar 3 is transmitted to the base plate 501, thereby increasing the impact resistance of the cross bar 3. When the external impact force further increases, the cross bar 3 drives the matching block 505 to move, and the matching block 505 pushes the support plate 507 to rotate through the connecting rod 508, so that the support plate 507 supports the cross bar 3. Fig.10 , entering and maintaining the triangular structure formed by the cross bar 3 and the base plate 501, thereby improving the stability of the guardrail structure.

[0065] 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. A bendable PVC safety guardrail, characterized by: It comprises a cement platform (1) and a fixing seat (6) mounted on the cement platform (1), a column (2) is mounted on the fixing seat (6), an insert block (9) is slidably mounted in the column (2), and the column (2) is connected to the crossbar (3) via the insert block (9); An inclined slide groove (14) is provided in the column (2), a slider (11) is installed on the plug block (9), the slider (11) and the inclined slide groove (14) are slidably matched, a slot (13) is provided on the plug block (9), a plug (10) is fixedly installed on the cross bar (3), the plug (10) is inserted into the slot (13), and a chamfer is provided on the plug (10), a disc spring (12) is installed in the column (2), the disc spring (12) contacts the plug block (9), a vertical rod assembly (4) is installed on the cross bar (3), and a positioning support assembly (5) is installed between the columns (2).

2. A bendable PVC safety guardrail according to claim 1, characterized in that: The vertical bar assembly (4) comprises a main vertical plate (401) and a secondary vertical plate (402); the main vertical plate (401) is sleeved on the cross bar (3) via a clamping sleeve (7), and the main vertical plate (401) is fixed to the cross bar (3) via connecting bolts (8).

3. The bendable PVC safety guardrail according to claim 2, characterized in that: A top groove (403) is provided on the top of the main vertical plate (401), and the auxiliary vertical plate (402) is rotatably installed in the top groove (403). A fastening bolt (404) is installed on one side of the main vertical plate (401), and the auxiliary vertical plate (402) is limited by tightening the fastening bolt (404).

4. The bendable PVC safety guardrail according to claim 1, characterized in that: The positioning support assembly (5) comprises a base plate (501) and a connecting plate (502). The connecting plates (502) are welded to both ends of the base plate (501), and the connecting plates (502) are connected to the upright column (2) via fixing bolts (503).

5. The bendable PVC safety guardrail according to claim 4, characterized in that: The positioning support assembly (5) further comprises a card frame (504), the card frame (504) being fixedly mounted on the base plate (501), a matching block (505) being slidably mounted inside the card frame (504), the matching block (505) being connected to the inner wall of the card frame (504) via a spring (509), and the cross bar (3) being in contact with the matching block (505).

6. The bendable PVC safety guardrail according to claim 5, characterized in that: A rotating shaft (506) is rotatably mounted on the base plate (501), a supporting plate (507) is fixedly connected to the rotating shaft (506), and the supporting plate (507) is connected to the matching block (505) via a connecting rod (508).

7. The bendable PVC safety guardrail according to claim 2, characterized in that: The surface of the auxiliary vertical plate (402) is sprayed with light-absorbing paint.

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