Quickly disassembled anti-collision guardrail

Abstract

The invention discloses an anti-collision guardrail capable of being quickly disassembled, and belongs to the technical field of safety protection guardrails. The problems that an existing anti-collision guardrail is of a fixed installation structure, when the anti-collision guardrail is collided and damaged, the anti-collision guardrail needs to be dismantled to restore the anti-collision effect of the anti-collision guardrail, efficiency is low, and the influence on a site is large are solved. The anti-collision guardrail capable of being disassembled quickly comprises a three-wave-shaped beam and a plurality of supporting and fixing assemblies of the same structure. The multiple sets of supporting and fixing assemblies are arranged in parallel and located on the same side of the three-wave waveform beam. The multiple sets of supporting and fixing assemblies are fixedly connected with the three-wave waveform beam. Each supporting and fixing assembly comprises a supporting assembly and a ground fixing assembly; the supporting assembly is arranged above the ground fixing assembly and detachably connected with the ground fixing assembly. The ground fixing assembly is fixedly connected with a ground embedded structure. The rigidity of the anti-collision guardrail adapter block is enhanced, and the anti-collision guardrail adapter block is connected with the ground foundation through the bolts, so that the detachable function of the anti-collision guardrail is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of safety protection guardrails, and in particular to a quick-detachable anti-collision guardrail. Background Art

[0002] During vehicle testing, safety risks caused by vehicle loss of control need to be considered. When vehicle testing is conducted indoors, the protective effect of anti-collision guardrails on buildings needs to be considered to prevent the loss of vehicle control from affecting buildings. At the same time, in order to improve the test efficiency during vehicle testing, anti-collision guardrails should be able to be quickly replaced to achieve rapid repair of damaged scenes.

[0003] Since the interior of the building is a concrete floor, the installation conditions of the crash barrier are similar to those of the highway bridge crash barriers. The following are some common crash barriers for highway bridges: Steel guardrails are one of the most common crash barriers for highway bridges. Made of steel, they have high strength and rigidity, can effectively prevent vehicles from running off the bridge, and absorb the impact energy to reduce the severity of the accident. Concrete guardrails are another common choice. It consists of prefabricated concrete components with high durability and rigidity. Concrete guardrails are usually fixed to the edge of the bridge to form a solid physical barrier. Cable guardrails are a flexible guardrail system composed of steel cables. It usually consists of multiple parallel steel cables fixed to both sides of the bridge through support columns. Cable guardrails can reduce the impact force when vehicles collide and provide a more flexible protection effect.

[0004] Some highway bridge anti-collision guardrails use the impact force of vehicle collision as power, and water as the transmission medium to drive the protective net up and down to block and capture flying objects during vehicle collision. However, its overall structure is relatively complex and its maintainability is poor.

[0005] Some bridge crash guardrail safety operation protection platforms are equipped with step-by-step moving components during the construction of the bridge crash guardrail, but the crash guardrail still needs to be installed into the concrete. The installation steps are relatively complicated and disassembly is relatively difficult.

[0006] Some building anti-collision guardrail components achieve effective protection of building walls by installing anti-collision guardrail structures on the side walls of buildings. However, the anti-collision guardrail is installed on the building wall, leaving no space for people to pass through, and the site safety is poor. In addition, the anti-collision guardrail uses the wall as a supporting structure and has no buffer space. When the impact is too large, it cannot effectively guarantee the safety of the wall.

[0007] Some new racing track guardrails provide flexible protection for vehicles by setting springs between the guardrail posts and the guard plates. However, the guardrails have poor stability and occupy a large space.

[0008] In the prior art, all anti-collision guardrails are fixed installation structures. When the anti-collision guardrails are damaged by collision, they need to be dismantled to restore the anti-collision effect of the anti-collision guardrails, which is inefficient and has a great impact on the site. During the protection process of the anti-collision guardrails, the protection effect against larger collision impacts is poor, and it is difficult to achieve effective protection of the outer space of the guardrail. Summary of the invention

[0009] In view of the above analysis, the present invention aims to provide a quick-detachable anti-collision guardrail to solve the problem that the anti-collision guardrails are all fixed installation structures. When the anti-collision guardrails are damaged by collision, they need to be dismantled to restore the anti-collision effect of the anti-collision guardrails, which is inefficient and has a great impact on the site.

[0010] The purpose of the present invention is mainly achieved through the following technical solutions:

[0011] The present invention provides a quick-detachable anti-collision guardrail, comprising a three-wave corrugated beam and a plurality of groups of supporting and fixing components with the same structure;

[0012] Multiple groups of supporting and fixing components are fixedly connected to the three-wave corrugated beam;

[0013] The supporting and fixing components include a supporting component and a ground fixing component; the supporting component is arranged above the ground fixing component and the two are detachably connected; the supporting component is used to support the three-wave corrugated beam; the ground fixing component is pre-buried in the ground, and the ground fixing component is used to fix the supporting component and the three-wave corrugated beam thereon.

[0014] In a possible design, the support assembly includes an anti-obstruction block and a column, and the columns are all arranged on the ground fixing assembly; the anti-obstruction block is arranged on the top of the column; and the anti-obstruction block is fixedly connected to the three-wave corrugated beam.

[0015] In one possible design, the support assembly further includes a diagonal brace column;

[0016] The columns are arranged along the vertical direction; the diagonal bracing columns are arranged on the ground fixing components and are located outside the columns, and the diagonal bracing columns, the columns and the ground fixing components form a triangular structure.

[0017] In one possible design, the ground fixing assembly includes an adapter block and a pair of tensioners of the same structure;

[0018] The bottoms of the upright columns and the diagonal bracing columns are fixed in the tensioners, and the tensioners are fixed on the adapter blocks; the adapter blocks are connected to the ground embedded plate structure.

[0019] In a possible design, the adapter block includes an upper mounting surface, a lower mounting surface, and a plurality of groups of adapter block shock absorbing components disposed therebetween.

[0020] In a possible design, the upper mounting surface and the lower mounting surface are arranged in vertical parallel.

[0021] In a possible design, multiple groups of adapter block shock absorbing assemblies each include an upper spring mounting seat, a lower spring mounting seat, a metal support column and a shock absorbing column.

[0022] In one possible design, upper spring mounting seats are provided at the four corners of the bottom surface of the upper mounting surface, lower spring mounting seats are provided at the four corners of the top surface of the lower mounting surface, a compression spring is provided between the upper spring mounting seat and the lower spring mounting seat, and a metal support column is provided inside the compression spring.

[0023] In a possible design, the metal support column includes a metal sleeve and a central axis; the central axis is disposed in the metal sleeve, the top surface of the metal axis is fixedly connected to the upper mounting surface, and the bottom surface of the metal sleeve is fixedly connected to the lower mounting surface.

[0024] In a possible design, the number of the multiple groups of supporting and fixing components is three; the three groups of supporting and fixing components are arranged parallel to each other and are all located on the same side of the three-wave corrugated beam.

[0025] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0026] (1) The present invention can increase the shock absorbing function of the adapter block by arranging multiple groups of adapter block shock absorbing components between the upper mounting surface and the lower mounting surface, thereby reducing the energy of the vehicle when the anti-collision guardrail is hit.

[0027] (2) The quick-detachable anti-collision guardrail of the present invention is provided with diagonal support columns on the outside of the upright columns, which can improve the overall rigidity of the anti-collision guardrail, reduce the deformation of the anti-collision guardrail after a collision, and achieve effective protection of the rear space of the anti-collision guardrail.

[0028] (3) The present invention arranges a plurality of clamping blocks at the lower part of the upper clamping device, so that each side surface of the square column can contact the inner surface of the clamping block. Therefore, this design can increase the contact area between the clamping block and the square column, thereby increasing the connection strength between the square column and the upper clamping device, and finally clamping the square column.

[0029] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0031] Figure 1This is a schematic diagram of the structure of the quick-detachable anti-collision guardrail of the present invention;

[0032] Figure 2 A side view of the quick-detachable anti-collision guardrail structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the mounting plate structure of the present invention;

[0034] Figure 4 A schematic diagram of the structure of the adapter block provided in Example 1 of the present invention Figure 1 ;

[0035] Figure 5 A schematic diagram of the structure of the adapter block provided in Example 1 of the present invention Figure 2 ;

[0036] Figure 6 A schematic diagram of the structure of a switching block provided in Embodiment 2 of the present invention;

[0037] Figure 7 It is a schematic diagram of the structure of the square column tightener of the present invention;

[0038] Figure 8 is a side view of the tensioner structure;

[0039] Fig. 9 Schematic diagram of the upper tensioner structure;

[0040] Fig.10 It is a side view of the upper tensioner structure;

[0041] Fig.11 Schematic diagram of the lower tensioner structure;

[0042] Fig.12 It is a cross-sectional view of the lower tensioner structure.

[0043] Reference numerals:

[0044] 1-three-wave corrugated beam; 2-anti-blocking block; 3-column; 4-mounting plate; 5-diagonal brace column; 6-adapter block; 7-first rectangular weight-reducing groove; 8-second rectangular weight-reducing groove; 9-reinforcement boss; 10-first bolt hole; 11-second bolt hole; 12-compression spring; 13-metal support column; 14-shock-absorbing column; 15-middle support seat; 16-upper mounting surface, 17-lower mounting surface; 18-weight-reducing hole; 19-upper tightener; 20-lower tightener; 21-connecting bolt; 22-gasket; 23-connecting nut; 24-first bolt hole; 25-second bolt hole; 26-connecting section; 27-transition section; 28-fixed section; 29-transition arc section; 30-clamping block. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0046] Example 1

[0047] The ground fixing assembly of this embodiment uses a mounting plate and a switching block to fix the anti-collision guardrail.

[0048] The present invention provides a quick-detachable anti-collision guardrail, such as Figures 1 to 3 As shown, the quick-detachable anti-collision guardrail includes a three-wave corrugated beam 1 and multiple groups of supporting and fixing components with the same structure; the multiple groups of supporting and fixing components are arranged in parallel with each other and are all located on the same side of the three-wave corrugated beam 1; the multiple groups of supporting and fixing components are all fixedly connected to the three-wave corrugated beam 1; the supporting and fixing components include a supporting component and a ground fixing component; the supporting component is arranged above the fixing component and the two are detachably connected; the supporting component is used to support the three-wave corrugated beam 1; the ground fixing component is pre-buried in the ground, and the fixing component is used to fix the supporting component and the three-wave corrugated beam 1 thereon.

[0049] Specifically, since the three-wave corrugated beam 1 has a certain length, in order to fully support the three-wave corrugated beam 1, the number of the supporting and fixing components of the present invention is multiple groups, for example, three groups; the multiple groups of supporting and fixing components are arranged in parallel with each other and are all located on the same side of the three-wave corrugated beam 1. The present invention uses a supporting component to fix the three-wave corrugated beam 1, and the supporting component and the ground fixing component are detachably connected. When the anti-collision guardrail is damaged, only the upper guardrail (including the three-wave corrugated beam 1 and the supporting component) is damaged, and the ground fixing component can bear the impact force of the vehicle collision, and the upper guardrail can be quickly disassembled, thereby realizing the quick disassembly function of the anti-collision guardrail.

[0050] In order to more stably support the three-wave corrugated beam 1, the supporting assembly of the present invention includes an anti-obstruction block 2, a column 3 and a mounting plate 4; the column 3 is vertically arranged on the mounting plate 4, and the anti-obstruction block 2 is arranged on the top of the column 3; the anti-obstruction block 2 is fixedly connected to the three-wave corrugated beam 1.

[0051] Specifically, the column 3 is arranged on the mounting plate 4 in the vertical direction and is fixed to the mounting plate 4 by welding. The anti-obstruction block 2 is arranged at the top of the column 3 and is fixedly connected to the top surface of the column 3 by bolts; one side surface of the anti-obstruction block 2 follows the shape of the three-wave corrugated beam 1 and is fixedly connected to the three-wave corrugated beam 1 by bolts.

[0052] Compared with the prior art, the present invention can enhance the firmness and stability of the column 3 by welding and fixing the column 3 to the mounting plate 4, thereby providing stable support for the anti-blocking block 2 and the three-wave corrugated beam 1.

[0053] In order to further improve the stability of the anti-collision guardrail, such as Figure 2As shown, the support assembly of the present invention also includes an oblique support column 5; the mounting plate 4 is horizontally arranged, and the column 3 is arranged in the vertical direction; the oblique support column 5 is arranged on the mounting plate 4 and is located outside the column 3, and it forms a triangular structure with the column 3 and the mounting plate 4.

[0054] Compared with the prior art, the present invention can improve the overall rigidity of the anti-collision guardrail, reduce the deformation of the anti-collision guardrail after collision, and effectively protect the rear space of the anti-collision guardrail by arranging a diagonal support column 5 on the outer side of the quick-detachable anti-collision guardrail.

[0055] It should be noted that if Figure 2 As shown, the fixing assembly of the present invention includes an adapter block 6; the mounting plate 4 is disposed on the adapter block 6, and the adapter block 6 is welded to a ground embedded structure (eg, a ground embedded plate).

[0056] Specifically, the mounting plate 4 is disposed above the adapter block 6 , and the mounting plate 4 is fixedly connected to the top surface of the adapter block 6 by bolts.

[0057] Compared with the prior art, the present invention provides an adapter block 6 in the quick-detachable anti-collision guardrail, and the adapter block 6 is welded to the ground through an embedded plate. When the upper guardrail protection plate and the column 3 are damaged by collision, rapid maintenance can be carried out by removing the bolts between the adapter block 6 and the mounting plate 4, thereby quickly completing the repair and replacement of the anti-collision guardrail.

[0058] In order to facilitate the quick disassembly and installation of the mounting plate 4 and the adapter block 6, as shown in FIG. Figure 3 As shown, the mounting plate 4 of the present invention is provided with a plurality of first bolt holes 10; the upper mounting surface 16 is provided with a plurality of second bolt holes 11; the positions of the first bolt holes 10 and the second bolt holes 11 correspond to each other and are the same in number. The mounting plate 4 and the upper mounting surface 16 are fixed by bolts.

[0059] Specifically, Figure 3 As shown, eight first bolt holes 10 are provided on the mounting plate 4, which are respectively arranged around the diagonal support column 5 and the column 3. Correspondingly, eight second bolt holes 11 are provided on the upper mounting surface 16 of the adapter block 6. The positions of the first bolt holes 10 and the second bolt holes 11 correspond and the numbers are equal. The first bolt holes 10 and the second bolt holes 11 can be used to achieve a detachable connection between the mounting plate 4 and the adapter block 6.

[0060] In summary, the quick-detachable anti-collision guardrail provided by the present invention can realize the detachable function of the anti-collision guardrail by enhancing the rigidity of the anti-collision guardrail adapter block 6, and the anti-collision guardrail (mounting plate 4 and the above structure) and the ground foundation (including the adapter block 6 and the ground embedded plate) are connected by bolts. When the guardrail is damaged, only the upper guardrail is damaged, and the adapter block 6 is firmly connected to the ground to bear the impact force when the vehicle collides. The upper guardrail can be quickly disassembled by fixing bolts to realize the quick disassembly function.

[0061] The adapter block 6 of this embodiment is composed of an upper mounting surface 16 and a lower mounting surface 17; the upper mounting surface 16 is fixedly connected to the mounting plate 4, and the lower mounting surface 17 is a whole steel plate, and the lower mounting surface 17 is used for welding and fixing with the ground embedded plate.

[0062] Compared with the prior art, the present invention fixes the mounting plate 4 on the adapter block 6 and welds the lower mounting surface 17 to the ground embedded plate. After a collision, the adapter block 6 will not be damaged, thereby realizing the recycling of the adapter block 6 and ensuring the safety of the anti-collision guardrail.

[0063] In order to reduce the weight of the adapter block 6, the adapter block 6 of the present invention is a rectangular steel block; along the length direction of the adapter block 6, a first rectangular weight-reducing groove 7 is provided in the middle position of the adapter block 6, and a plurality of reinforcing bosses 9 are provided on both sides of the rectangular weight-reducing groove, the top of the reinforcing boss 9 is fixedly connected to the upper mounting surface 16, and a second bolt hole 11 is provided on the reinforcing boss 9; a second rectangular weight-reducing groove 8 is provided between adjacent reinforcing bosses 9.

[0064] Compared with the prior art, the present invention can reduce the weight of the adapter block 6 by setting the first rectangular weight-reducing groove 7, rationally utilize steel materials, and lightweight the adapter block 6 while ensuring the rigidity of the steel plate, thereby preventing the adapter block 6 from being too heavy and causing difficulties in installation and transportation.

[0065] Since the local stress at the position of the second bolt hole 11 reserved for connection with the mounting plate 4 is relatively large, the present invention can increase the thickness of the steel plate in this area by setting a reinforcing boss 9, thereby strengthening the local stiffness at the connection position, ensuring the effectiveness of the connection between the adapter block 6 and the mounting plate 4, and preventing the connection position from being too weak to cause connection failure.

[0066] The present invention sets a second weight-reducing groove between adjacent reinforcing bosses 9, and performs lightweight design on the position with relatively small local stress, which can reduce the weight of the adapter block 6, rationally utilize steel materials, realize the convenience of installation of the entire structure, and ensure the rigidity of the steel plate while lightweighting.

[0067] Example 2

[0068] The support assembly of this embodiment is basically the same as that of the embodiment 1, except that the support assembly of the present invention does not include a mounting plate, and the ground fixing assembly used in this embodiment includes an adapter block and a pair of tensioners; wherein the pair of tensioners are both fixed on the adapter block, and the adapter block is pre-buried in the ground. The tensioners are used to fix the upright column and the diagonal support column, respectively, and the bottoms of the two are fixed in the tensioners.

[0069] The present embodiment provides an adapter block 6, which includes an upper mounting surface 16, a lower mounting surface 17 and multiple groups of adapter block 6 shock-absorbing components arranged therebetween; the upper mounting surface 16 and the lower mounting surface 17 are arranged in parallel up and down; the multiple groups of adapter block 6 shock-absorbing components each include an upper spring mounting seat, a lower spring mounting seat, a metal support column 13 and a shock-absorbing column 14; upper spring mounting seats are provided at the four corners of the bottom surface of the upper mounting surface 16, lower spring mounting seats are provided at the four corners of the top surface of the lower mounting surface 17, a compression spring 12 is provided between the upper spring mounting seat and the lower spring mounting seat, and the metal support column 13 is provided inside the compression spring 12.

[0070] Specifically, the number of shock-absorbing assemblies of the adapter block 6 of the present invention is four groups, and the four groups of shock-absorbing assemblies of the adapter block 6 are distributed at the four corners of the rectangular adapter block 6; that is, upper spring mounting seats are provided at the four corners of the bottom surface of the upper mounting surface 16, and lower spring mounting seats are provided at the four corners of the top surface of the lower mounting surface 17. A compression spring 12 is provided between the upper spring mounting seat and the lower spring mounting seat, and the upper spring mounting seat and the lower spring mounting seat at corresponding positions are respectively used to fix the two ends of the compression spring 12, and the metal support column 13 is used to support and guide the compression spring 12.

[0071] Compared with the prior art, the present invention can increase the shock absorbing function of the adapter block 6 by arranging multiple groups of adapter block 6 shock absorbing components between the upper mounting surface 16 and the lower mounting surface 17, thereby reducing the energy of the vehicle when the crash barrier is hit.

[0072] It should be noted that the metal support column 13 of the present invention includes a metal sleeve and a central axis; wherein the central axis is disposed in the metal sleeve, the top surface of the metal axis is fixedly connected to the upper mounting surface 16, and the bottom surface of the metal sleeve is fixedly connected to the lower mounting surface 17.

[0073] Compared with the prior art, the present invention can guide the compression spring 12 to move along the axial direction of the metal support column by setting the metal sleeve and the central axis, thereby reducing its swing and deviation and improving its working accuracy and stability.

[0074] In order to further enhance the shock-absorbing function of the adapter block 6, a middle support seat 15 is further provided between the upper mounting surface 16 and the lower mounting surface 17 of the present invention; the top of the middle support seat 15 is fixedly connected to the bottom surface of the upper mounting surface 16, and the bottom is fixedly connected to the top surface of the lower mounting surface 17, and the middle support seat 15 is made of elastic material.

[0075] It should be explained that the structure of the middle support seat 15 of the present invention is the same as that of the above-mentioned metal support column 13.

[0076] In order to reduce the weight of the adapter block 6, a plurality of weight-reducing holes 18 are evenly distributed along the axial direction of the middle support seat 15 of the present invention.

[0077] In order to further enhance the shock-absorbing function of the adapter block 6 , a shock-absorbing column 14 is provided between the upper mounting surface 16 and the lower mounting surface 17 of the adapter block 6 of the present invention; the shock-absorbing column 14 is provided in the middle of the four metal support columns 13 , and the material of the shock-absorbing column 14 includes rubber material.

[0078] It should be pointed out that the adapter block of the present invention is pre-buried in the ground (only the upper mounting surface is left on the ground, and the other parts of the structure are located under the ground), and the lower tensioner is fixed by the adapter block; the fixed section of the lower tensioner is fixed at the center of the adapter block and is located inside the fixed block.

[0079] The tightener of the present invention is a square column tightener.

[0080] The square column tightener provided in this embodiment is as follows: Figure 7 and Figure 8 As shown, the square column tensioner of the anti-collision guardrail includes an upper tensioner 19 and a lower tensioner 20; the upper tensioner 19 and the lower tensioner 20 are both hollow structures, and the internal cavities of both are square column accommodating cavities; the lower tensioner 20 is pre-buried in the civil engineering ground as a whole or fixed by a transition block, the square column is arranged in the square column accommodating cavity of the lower tensioner 20, the upper tensioner 19 is located above the lower tensioner 20 and is sleeved on the square column, and the upper tensioner 19 is used to clamp the square column in the lower tensioner 20; the upper tensioner 19 and the lower tensioner 20 are detachably connected.

[0081] Specifically, the square column (square column for short) tensioner of the anti-collision guardrail of the present invention adopts a split design, and the tensioner includes an upper tensioner 19 and a lower tensioner 20; wherein, the upper tensioner 19 is arranged directly above the lower tensioner 20, and the two can be detachably connected after being aligned, and the upper tensioner 19 and the lower tensioner 20 are both hollow structures, and both have square column accommodating cavities inside. During installation, the lower tensioner 20 is first pre-buried in the civil engineering ground as a whole, and only the installation hole is reserved on the ground; then, the square column is placed in the cavity in the lower tensioner 20; finally, the upper tensioner 19 is installed, and the square column is clamped in the lower tensioner 20 by the upper tensioner 19 to achieve the fixation of the square column; the upper tensioner 19 and the lower tensioner 20 are designed to be detachably connected, so as to facilitate the replacement and installation of new square columns.

[0082] Compared with the prior art, the present invention adopts a split structure of an upper tensioner 19 and a lower tensioner 20, which has the following effects: (1) Convenient disassembly: The present invention uses an upper tensioner 19 to clamp the square column. Since the upper tensioner 19 and the lower tensioner 20 are detachably connected, it is convenient to disassemble the square column. (2) Convenient installation: The present invention designs the tensioner to be split, and the lower tensioner 20 can be installed together with the civil engineering as an embedded part. After completion, the upper tensioner and the lower tensioner 20 can be detachably connected. (3) Convenient maintenance: Since the lower tensioner 20 of the present invention is embedded in the civil engineering ground as an embedded part, and the upper tensioner 19 can clamp the square column, after the anti-collision guardrail is damaged, it is only necessary to replace the square column without replacing the upper tensioner 19 and the lower tensioner 20. (4) Convenient replacement: Replace and adjust the square columns of different heights according to the actual terrain and protection conditions.

[0083] In order to clamp the square columns to increase the overall stability of the anti-collision guardrail, such as Fig. 9 and Fig.10 As shown, the upper tightener 19 of the present invention is a U-shaped square frame; a plurality of tightening blocks 30 are provided on the bottom surface of the upper tightener 19 along its circumferential direction; the inner surface of the tightening block 30 matches the square column; the outer surface of the tightening block 30 matches the inner surface of the lower tightener 20; the tightening block 30 is used to clamp the square column in the lower tightener 20.

[0084] Specifically, a plurality of clamping blocks 30 are provided on the bottom surface of the upper tightener 19, and the setting direction of the clamping blocks 30 is the same as the height direction of the square column; the inner surface of the clamping block 30 is flush with the inner surface of the upper tightener 19, that is, the inner surface of the U-shaped square frame. After the square column is inserted into the cavity of the lower tightener 20, there is a certain gap between the upper end portion of the lower tightener 20 and the square column. At this time, the upper tightener 19 is sleeved on the square column and the clamping block 30 of the upper tightener 19 is tightened. The block 30 is inserted into the gap between the square column and the lower tensioner 20 like a wedge, and the square column is clamped by the tensioning block 30. Since the inner surface of the tensioning block 30 matches the outer surface of the square column, and the outer surface of the tensioning block 30 matches the inner surface of the lower tensioner 20, the tensioning block 30 can clamp the square column; after the square column is completely clamped, the upper tensioner 19 is detachably connected to the lower tensioner 20 to achieve a firm fixation of the square column of the anti-collision guardrail.

[0085] Compared with the prior art, the present invention arranges a plurality of clamping blocks 30 at the lower part of the upper clamping device 19, so that each side surface of the square column can contact the inner surface of the clamping block 30. Therefore, the design can increase the contact area between the clamping block 30 and the square column, thereby increasing the connection strength between the square column and the upper clamping device 19, and finally clamping the square column.

[0086] It should be noted that if Fig.11and Fig.12 As shown, the lower tightener 20 of the present invention includes a connecting section 26, a transition section 27 and a fixed section 28 from top to bottom; wherein, the structure of the connecting section 26 is a U-shaped square frame, the transition section 27 is a hollow quadrangular pyramid structure; the fixed section 28 is a hollow quadrangular column structure; the cavities of the three are connected and form a square column accommodating cavity; the inner surfaces of the connecting section 26 and the transition section 27 match the outer surfaces of the corresponding tightening blocks 30; the inner surface of the hollow quadrangular column structure matches the outer surface of the square column.

[0087] Specifically, the structure of the connecting section 26 of the lower tightener 20 of the present invention is a U-shaped square frame, which is set to match the structure of the U-shaped square frame of the upper tightener 19, so that the two can be connected by bolts. The transition section 27 of the lower tightener 20 is set as a hollow quadrangular pyramid structure, which is used to strengthen the local rigidity of the lower tightener 20. This is because the lower tightener 20 and the upper tightener 19 are in inclined contact. In order to ensure the corresponding rigidity of the contact position, a corresponding inclined shape is set on the outer side of the transition section 27 of the lower tightener 20, which can ensure the overall rigidity of the lower tightener 20.

[0088] It should be pointed out that the transition section 27 and the fixing section 28 of the lower tightener 20 of the present invention are both pre-buried in the civil engineering ground.

[0089] Compared with the prior art, the present invention embeds the transition section 27 and the fixing section 28 of the lower tensioner 20 in the civil engineering ground, realizes the fixing and clamping function of the square column in the lower tensioner 20 through the upper tensioner 19, and ensures that the upper tensioner 19 and the lower tensioner 20 are relatively fixed by locking, so as to prevent the square column from being pulled out of the lower tensioner 20. After the square column is relatively fixed with the upper and lower tensioners 20, the square column can be firmly connected to the ground.

[0090] In order to prevent the square column from being pulled out of the upper and lower tensioners 20, a first bolt hole 24 is provided on the upper tensioner 19 of the present invention; a second bolt hole 25 is provided on the connecting section 26 of the lower tensioner 20; the number of the first bolt holes 24 and the second bolt holes 25 are equal and the positions correspond; the connecting bolt 213 passes through the first bolt hole 24 and the second bolt hole 25 in sequence from top to bottom, and a connecting nut 23 is provided on one end of the connecting bolt 213 located on the lower tensioner 20.

[0091] Specifically, the upper tensioner 19 and the lower tensioner 20 are locked by the connecting bolt 213 to ensure that the upper tensioner 19 and the lower tensioner 20 are relatively fixed, so as to prevent the square column from being pulled out of the lower tensioner 20. In addition, by providing the connecting bolt 213, the installation and disassembly of the square column is facilitated. When the connecting bolt 213 is loosened, the anti-collision guardrail can be quickly removed. When the anti-collision guardrail collides with a vehicle, the connecting bolt 213 can be loosened for rapid maintenance, and the repair and replacement of the anti-collision guardrail can be completed quickly. At the same time, when the connecting bolt 213 is not completely locked, the square column of the anti-collision guardrail can move freely in the upper and lower tensioners 20, so as to facilitate the adjustment of the height of the square column.

[0092] It should be noted that a gasket 22 is provided on the connecting bolt 213, and the gasket 22 is located on the inner side of the connecting nut 23. The gasket 22 can effectively fill the gap between the connecting bolt 213 and the connecting nut 23 to ensure a tighter connection.

[0093] In order to clamp the square pillars of the anti-collision guardrail and ensure their centering, eight clamping blocks 30 with the same structure are provided on the bottom surface of the upper clamp 19 of the present invention along its circumferential direction; the inner surface of the clamping block 30 is a vertical plane, which is used to cooperate with the side surface of the square pillar; the outer surface of the clamping block 30 is an inclined surface inclined inwardly, and the inner surfaces of the connecting section 26 and the transition section 27 are also inclined surfaces inclined inwardly, and the inner surfaces of the connecting section 26 and the transition section 27 are used to cooperate with the outer surface of the clamping block 30.

[0094] Specifically, eight clamping blocks 30 are evenly arranged on the lower part of the upper tightener 19 of the present invention, that is, each side surface of the square column of the anti-collision guardrail is in contact with the inner surfaces of the two clamping blocks 30, and the inner surface of the clamping block 30 is a vertical plane, which is used to cooperate and contact with the side surfaces of the square column of the anti-collision guardrail, and the outer surface of the clamping block 30 is an inclined surface inclined inwardly, which cooperates with the connecting section 26 and the transition section 27 of the lower tightener 20. Through the cooperation of the inclined surfaces between the upper tightener 19 and the lower tightener 20, it can be ensured that the upper tightener 19 can achieve the centering of the square column during the installation process, avoiding the local setting of the clamping block 30 and failing to clamp the square column of the anti-collision guardrail.

[0095] It should also be noted that the present invention makes the outer surface of the clamping block 30 contact the inclined surfaces of the connecting section 26 and the transition section 27 of the lower clamp 20, which can not only align the square column and apply clamping force to the square column, but also facilitate the replacement of square columns of different models.

[0096] It should be pointed out that the clamping block 30 of the present invention is provided with a local thinning structure on the outside, and the local thinning structure can improve the flexibility of the clamping block 30 and further increase the deformation capacity of the clamping block 30 .

[0097] It should be emphasized that a transition arc segment 29 is provided on the outer surface of the clamping block 30 . The transition arc segment 29 is adjacent to the bottom surface of the upper clamp 19 . The transition arc segment 29 is used to prevent local stress concentration and damage of the structure.

[0098] In order to further improve the stability of the square column, the number of the first bolt holes 24 of the present invention is four, and the first bolt holes 24 are distributed at the four corners of the upper tightener 19; the number of the second bolt holes 25 is also four, and the second bolt holes 25 are distributed at the four corners of the connecting section 26.

[0099] Specifically, since the upper tensioner 19 is a U-shaped square frame, the connecting section 26 of the lower tensioner 20 is also a U-shaped square frame, and the two U-shaped square frames have the same shape and equal size; the upper and lower mounting surfaces of the first bolt hole 24 are both square, and similarly, the upper and lower mounting surfaces of the second bolt hole 25 are also square. Four bolt holes are correspondingly provided at the four corner positions of the two U-shaped square frames, and the four first bolt holes 24 of the upper tensioner 19 correspond to the positions of the four second bolt holes 25 of the lower tensioner 20; the bolts pass through the first bolt hole 24 and the second bolt hole 25 from top to bottom in sequence and are fixed by the connecting nut 23.

[0100] Compared with the prior art, the present invention sets bolt holes at the four corner positions of the upper tensioner 19 and the lower tensioner 20 and adopts bolt connection, so that the square column can be locked by tightening the connecting bolts 213; the square column can also be moved up and down by loosening the connecting bolts 213 to adjust the height of the square column; different square columns can also be replaced according to different terrains and different impact conditions.

[0101] In summary, the square column tensioner of the anti-collision guardrail of the present invention is easy to install. During ground construction, the lower tensioner 20 can be installed on the ground as an embedded part. After the ground maintenance is completed, the upper tensioner 19 and the column can be installed, shortening the construction period.

[0102] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A quick-detachable anti-collision guardrail, characterized in that: It includes three wave corrugated beams and multiple groups of supporting and fixing components with the same structure; A plurality of groups of the supporting and fixing components are all fixedly connected to the three-wave corrugated beam; The supporting and fixing components all include a supporting component and a ground fixing component; the supporting component is arranged above the ground fixing component and the two are detachably connected; the supporting component is used to support the three-wave corrugated beam; the ground fixing component is pre-buried in the ground, and the ground fixing component is used to fix the supporting component and the three-wave corrugated beam thereon.

2. The quick-detachable anti-collision guardrail according to claim 1, characterized in that: The support assembly includes an anti-obstruction block and a column, and the columns are all arranged on the ground fixing assembly; the anti-obstruction block is arranged on the top of the column; the anti-obstruction block is fixedly connected to the three-wave corrugated beam.

3. The quick-detachable anti-collision guardrail according to claim 2, characterized in that: The support assembly also includes a diagonal support column; The upright column is arranged along the vertical direction; the diagonal support column is arranged on the ground fixing component and is located outside the upright column, and the diagonal support column, the upright column and the ground fixing component form a triangular structure.

4. The quick-detachable anti-collision guardrail according to claim 3, characterized in that: The ground fixing assembly includes an adapter block and a pair of tensioners with the same structure; The bottoms of the upright column and the diagonal bracing column are both fixed in a tightener, and the tightener is fixed on the adapter block; the adapter block is connected to the ground embedded plate structure.

5. The quick-detachable anti-collision guardrail according to claim 4, characterized in that: The adapter block comprises an upper mounting surface, a lower mounting surface and a plurality of groups of adapter block shock absorbing components arranged therebetween.

6. The quick-detachable anti-collision guardrail according to claim 5, characterized in that: The upper mounting surface and the lower mounting surface are arranged in vertical parallel.

7. The quick-detachable anti-collision guardrail according to claim 6, characterized in that: The plurality of groups of the transfer block shock absorbing components all include an upper spring mounting seat, a lower spring mounting seat, a metal support column and a shock absorbing column.

8. The quick-detachable anti-collision guardrail according to claim 7, characterized in that: Upper spring mounting seats are provided at the four corners of the bottom surface of the upper mounting surface, lower spring mounting seats are provided at the four corners of the top surface of the lower mounting surface, a compression spring is provided between the upper spring mounting seat and the lower spring mounting seat, and the metal support column is provided inside the compression spring.

9. The quick-detachable anti-collision guardrail according to claim 8, characterized in that: The metal support column includes a metal sleeve and a central axis; the central axis is arranged in the metal sleeve, the top surface of the metal axis is fixedly connected to the upper mounting surface, and the bottom surface of the metal sleeve is fixedly connected to the lower mounting surface.

10. The quick-detachable anti-collision guardrail according to any one of claims 1 to 9, characterized in that: The number of the multiple groups of supporting and fixing components is three; the three groups of supporting and fixing components are arranged parallel to each other and are all located on the same side of the three-wave corrugated beam.

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