Mesh transverse restraint rope guide and passive restraint system

Abstract

The utility model discloses a kind of guiding device of mesh horizontal restraint rope and passive protection system, the guiding device is set in the side surface of passive protection system center column, the installation angle of center column is limited as the included angle of the axis of center column and horizontal plane is θ, 0°≤θ≤90°, guiding device includes: restraint area, for horizontal restraint rope to pass through;At least one rotator, rotatably set in restraint area side beside;Wherein, rotator is designed as: when center column is installed with any θ value in the installation angle range, horizontal restraint rope is contacted and attached on rotator under the action of gravity.In the passive protection system, after applying the guiding device of the utility model, when center column is installed with any value of above θ angle, horizontal restraint rope will be contacted and attached on rotator under the action of gravity, so that the situation that rope is worn out due to the change of installation angle, leading to rope disengaging from rotator, sliding friction with other adjacent structure, can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of slope protection engineering technology, and in particular to a guide device for the transverse restraint rope of a mesh and a passive protection system. Background Technology

[0002] As a key technology for geological disaster prevention and control, flexible slope protection systems have developed into a diverse product system after decades of engineering practice, including active nets, passive nets, guiding nets, and tunnel protection devices. Among them, passive protection systems, with their unique "energy dissipation and interception" mechanism, have been widely used in the field of rockfall protection on natural slopes.

[0003] A typical passive protection system consists of posts, metal mesh, connecting structures (including anchor bolts, side tension / upper and lower support ropes, etc.), and energy dissipation devices. Some systems also add lateral restraint ropes in the middle area of ​​the mesh (such as the additional deformation restraint structure in patent CN210561796U) to suppress vertical deformation of the mesh when it is impacted, optimize the load transfer path, and improve impact resistance.

[0004] In existing technology, the lateral restraint rope passes through the mesh, goes around the guide pulley on the side of the column, and then extends to connect with the anchor rod, as in the aforementioned patent. Figure 4 As shown. However, the traditional single pulley design has significant limitations. Its guiding effect on the lateral restraint rope is limited. When the installation angle of the column changes, the lateral restraint rope may detach from the pulley and rub against adjacent structural components, causing the pulley's guiding function to fail and the rope to wear out. This directly affects the system's response performance and durability. Utility Model Content

[0005] The technical problem to be solved by this utility model is to improve the guiding device of the transverse restraint rope in the existing passive protection system, so as to avoid the situation where the guide fails due to the change of the installation angle of the passive protection system.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: Firstly, this utility model provides a guiding device for the transverse restraint rope of a mesh, which is installed on the side of a column in a passive protection system. The installation angle of the column is limited to an angle θ between the axis of the column and the horizontal plane, where 0°≤θ≤90°. The guiding device includes:

[0007] A constraint zone through which the lateral constraint rope passes;

[0008] At least two rotating bodies are set as the constraint boundaries of the constraint region;

[0009] The rotating body is designed such that when the column is installed at any θ value within the installation angle range, the lateral constraint rope contacts and adheres to at least one of the rotating bodies under the action of gravity, so as to provide rolling friction when the lateral constraint rope moves.

[0010] Preferably, the two rotating bodies are a first rotating body and a second rotating body, respectively;

[0011] The first rotating body is installed on the side of the constraint area near the column base;

[0012] The second rotating body is installed on the side of the constraint area away from the surface of the column.

[0013] In a preferred embodiment, the guide device further includes a first pin and a second pin;

[0014] The first pin and the second pin form an approximately L-shaped structure and are fixed to the column;

[0015] The first rotating body is rotatably mounted on the first pin, and the second rotating body is rotatably mounted on the second pin.

[0016] Furthermore, the guiding device also includes a support plate;

[0017] One end of the first pin is fixed to the surface of the column;

[0018] The support plate is spaced a predetermined distance from the first pin and is also fixed to the surface of the column;

[0019] One end of the second pin is fixed to the first pin, and the other end is fixed to the support plate;

[0020] The first rotating body, the second rotating body, the support plate, and the surface of the column together enclose the constraint area.

[0021] Furthermore, a limit block is provided at the position where the first pin and the second pin are connected;

[0022] The two ends of the first rotating body are restricted by the limiting block and the surface of the column, respectively, and therefore cannot move along the axial direction of the first pin.

[0023] The two ends of the second rotating body are restricted by the limiting block and the support plate respectively, and cannot move along the axial direction of the second pin.

[0024] Furthermore, both the first rotating body and the second rotating body are rollers with arc-shaped concave surfaces; wherein, one end corner of the first rotating body and one end corner of the second rotating body are connected to each other, and the arc-shaped concave surfaces of the two are connected to form a smooth transition arc surface, and the gap at the connection of the smooth transition arc surface is smaller than the outer diameter of the transverse constraint rope.

[0025] Alternatively, preferably, there are three rotating bodies, namely rotating body I, rotating body II, and rotating body III;

[0026] The rotating body I is installed on the side of the constraint area near the column base;

[0027] The rotating body II is installed on the side of the constraint area away from the surface of the column;

[0028] The rotating body III is installed on the side of the constraint area near the column head;

[0029] The constrained area is formed by the rotating body I, rotating body II, rotating body III, and the surface of the column.

[0030] Preferably, the guiding device further includes pin I, pin II, and pin III;

[0031] Pin I, pin II, and pin III form a roughly U-shaped structure and are fixed to the column;

[0032] The rotating body I is rotatably sleeved on the pin I, the rotating body II is rotatably sleeved on the pin II, and the rotating body III is rotatably sleeved on the pin III;

[0033] Among them, rotating body I, rotating body II and rotating body III are all rollers with arc-shaped concave surfaces; wherein, one end corner of rotating body I is connected to one end corner of rotating body II, and the other end corner of rotating body II is connected to one end corner of rotating body III, and the arc-shaped concave surfaces of the three are connected to form a smooth transition arc surface, and the gap at the connection of the smooth transition arc surface is smaller than the outer diameter of the transverse constraint rope.

[0034] Furthermore, the guiding device also includes a housing; the housing is fixed to the surface of the column and encloses the rotating body therein, and the housing is provided with an avoidance notch corresponding to the constraint area to avoid contact with the lateral constraint rope.

[0035] In another preferred embodiment, the guide device further includes a support plate;

[0036] The two rotating bodies and the support plate form a roughly U-shaped structure, which together with the surface of the column forms the constraint area.

[0037] Secondly, this utility model also provides a passive protection system, which includes a column, and the side of the column is provided with the guide device for the lateral restraint rope of the net described above.

[0038] The beneficial effects of this utility model are as follows:

[0039] After applying the guiding device provided by this utility model to the passive protection system, the lateral restraint rope will contact and adhere to the rotating body under the action of gravity, regardless of the specific angle at which the column is installed within the installation angle range. This avoids the situation where the rope detaches from the rotating body and contacts other adjacent structures due to changes in the installation angle, and slides and rubs during the interception of falling rocks, causing rope wear. It can be seen that the guiding device of this utility model ensures that the guiding function of the rotating body will not fail when the column is installed at any of the aforementioned angles θ, and can continuously provide rolling friction, reducing the frictional resistance and damage of the rope during movement. Attached Figure Description

[0040] Figure 1 This is a simplified diagram of the cantilevered passive protection system of this utility model;

[0041] Figure 2 This is a simplified diagram of the vertically installed passive protection system of this utility model;

[0042] Figure 3 This is a schematic diagram of the guide device installed on the column in Embodiment 1;

[0043] Figure 4 It is Figure 3 A schematic diagram of the structure after the first and second rotating bodies are hidden;

[0044] Figure 5 Is Figure 3 A schematic diagram of the structure after adding an outer shell to the existing structure;

[0045] Figure 6 yes Figure 5 The front view;

[0046] Figure 7 It is a schematic diagram showing multiple installation angles of the column;

[0047] Figure 8 This is a schematic diagram of the split structure of the roller with the arc-shaped concave surface in Embodiment 1;

[0048] Figure 9 This is a schematic diagram of the first and second rotating bodies in Embodiment 1, which are rollers with constant outer diameters and are integral structures.

[0049] Figure 10This is a schematic diagram of the first and second rotating bodies in Embodiment 1, which are rollers with constant outer diameters and have a split structure.

[0050] Figure 11 This is a schematic diagram of the guide device installed on the column in Embodiment 2. Detailed Implementation

[0051] The present invention will be further described in detail below with reference to specific embodiments, but the implementation of the present invention is not limited thereto.

[0052] Figure 1 and Figure 2 A passive protection system is demonstrated, comprising a column 510, a mesh panel 530, a connecting structure (including an upper support rope 541, a lower support rope 542, and anchor bolts (not shown in the figure), etc.), and an energy dissipation device (not shown in the figure). Furthermore, to suppress vertical deformation of the mesh panel 530 under impact, optimize the load transfer path, and improve impact resistance, multiple transverse restraint ropes 520 are added to the central region of the mesh panel 530. These transverse restraint ropes 520 penetrate the mesh panel 530 laterally, then turn backward and extend at an angle from the side of the column 510, connecting with pre-embedded anchor bolts.

[0053] To guide the transverse restraint rope 520 and minimize friction during the guiding process, this invention specifically designs a guiding device for the transverse restraint rope of the mesh. (See attached image) Figure 1 and Figure 2 The guide device 200 is installed on the side of the column 510 in the passive protection system. It can effectively guide the direction of the lateral restraint rope 520, while reducing frictional loss and ensuring the stability and reliability of the system. The guide device 200 is usually installed on the side of the column 510 away from the impact of falling rocks.

[0054] The installation angle of the column 510 is limited to an angle θ between the axis of the column 510 and the horizontal plane, where 0° ≤ θ ≤ 90° (see [reference]). Figure 7 During installation, the column 510 is fixed to the ground via a corresponding column base (not shown in the figure), and the column 510 and the column base are connected by a pin (not shown in the figure). The aforementioned horizontal plane refers to the horizontal plane passing through the base of the column 510 and intersecting with the axis of the pin (see [reference]). Figure 7 When installing the 510 column, its axis should be at least parallel to the horizontal plane or slightly above the horizontal plane, and should not be slightly below the horizontal plane (see [reference]). Figure 7 Furthermore, the aforementioned angle θ is the angle between the axis of the column 510 away from the side impacted by the falling rock (i.e., the side where the guide device 200 is installed) and the horizontal plane.

[0055] It should be noted that when installing the passive protection system, the specific installation angle of the column 510 needs to be determined based on actual factors such as the slope angle of the construction site. Therefore, the θ value varies within the range of 0° to 90°.

[0056] To facilitate a more intuitive understanding of the installation angle of the 510 column, the following are three examples of passive protection system installation scenarios:

[0057] (1) When installed on a cliff above a road to block falling rocks and protect vehicles and pedestrians below, the column 510 shall be installed in a cantilevered manner (e.g., Figure 1 As shown), at this time, the angle θ between the axis of column 510 and the horizontal plane is usually about 5° (corresponding to...). Figure 7 (Installation angle 1);

[0058] (2) When installed at the edge of a slope beside a road to intercept falling rocks from above the slope and ensure road safety, post 510 is installed vertically (e.g., Figure 2 As shown), at this time, the angle θ between the axis of column 510 and the horizontal plane is usually about 85° (corresponding to...). Figure 7 (Installation angle 2);

[0059] (3) When installed on a slope to intercept falling rocks from above the slope and ensure the safety of facilities or pedestrians below, the column 510 may be installed at a 45° angle. In this case, the angle θ between the axis of the column 510 and the horizontal plane is approximately 45° (corresponding to...). Figure 7 (Installation angle 3).

[0060] The guiding device 200 includes:

[0061] Constraint area 2a, through which the lateral restraint rope 520 passes;

[0062] At least two rotating bodies 210 are provided as the constraint boundaries of the constraint area 2a; that is, the rotating bodies 210 can cooperate with the surface of the column 510 as a limiting boundary to jointly constitute the constraint area 2a.

[0063] The rotating body 210 is designed such that when the column 510 is installed at any θ value within the above-mentioned installation angle range, the transverse constraint rope 520 contacts and adheres to at least one of the rotating bodies 210 under the action of gravity, so as to provide rolling friction when the transverse constraint rope 520 moves, thereby reducing frictional resistance.

[0064] The more specific design of the above-mentioned guide device 200 can be carried out according to the following embodiments.

[0065] Example 1:

[0066] See Figures 3 to 6As shown, in this embodiment, the two rotating bodies 210 are a first rotating body 211 and a second rotating body 212, respectively. The first rotating body 211 is installed on the side of the constraint area 2a near the column foot of the column 510, and the second rotating body 212 is installed on the side of the constraint area 2a away from the surface of the column 510.

[0067] Therefore, when the installation angle θ of the column 510 is close to 0°, the lateral restraint rope 520, under the influence of gravity, will contact and adhere to the surface of the second rotating body 212 (see...). Figure 7 (Installation angle 1); When the installation angle θ of the column 510 is close to 90°, the lateral restraint rope 520, under the action of gravity, will contact and adhere to the surface of the first rotating body 211 (see installation angle 1); Figure 7 (Installation angle 2); When the installation angle θ of the column 510 is located in the middle section between 0° and 90°, the transverse constraint rope 520 is subject to gravity and may contact both the first rotating body 211 and the second rotating body 212, while simultaneously adhering to the surfaces of both (see [reference]). Figure 7 (Installation angle 3).

[0068] Therefore, it can be seen that within the aforementioned installation angle range, regardless of the specific θ value at which the column 510 is installed, the lateral restraint rope 520 will contact and adhere to the rotating body 210 (the first rotating body 211 and / or the second rotating body 212) under the action of gravity. This ensures that when the mesh 530 is impacted by falling rocks, the guiding function of the rotating body 510 will not fail during the movement of the lateral restraint rope 520, and it can continuously provide rolling friction. This avoids the problem that the lateral restraint rope 520 may detach from the rotating body 210 due to changes in the installation angle, contact with adjacent structures, and experience sliding friction, causing rope wear and affecting the system's response performance and durability.

[0069] In a preferred embodiment, the guide device 200 further includes a first pin 221 and a second pin 222. See also Figure 4 The first pin 221 and the second pin 222 form an approximately L-shaped structure and are fixed to the column 510. The first rotating body 211 is rotatably sleeved on the first pin 221, and the second rotating body 212 is rotatably sleeved on the second pin 222.

[0070] In the above structure, the two first pins 221 and 222 provide a mounting base for the two rotating bodies 211 and 212, enabling the rotating bodies to be stably installed and rotate.

[0071] The rotating bodies 211 and 212 can be fitted onto the pins 221 and 222 using bearings, sliding sleeves, or wear-resistant ring parts to reduce friction during rotation. Alternatively, they can be fitted directly onto the pins 221 and 222 with only one hole, and lubricant can be applied during fitting.

[0072] To enhance the stability of the above structure, in a preferred embodiment, the guide device 200 is further provided with a support plate 230.

[0073] For details, see Figure 4 One end of the first pin 221 is fixed to the surface of the column 510. The support plate 230 is spaced a predetermined distance from the first pin 221 and is also fixed to the surface of the column 510. One end of the second pin 222 is fixed to the first pin 221, and the other end is fixed to the support plate 230.

[0074] Thus, the first rotating body 211, the second rotating body 212, the support plate 230, and the surface of the column 510 together form the constraint area 2a. This constraint area 2a is a closed area defined on all four sides, which can effectively prevent the lateral constraint rope 520 from accidentally detaching from the constraint area 2a. Among them, the support plate 230 plays a supporting and stabilizing role for the L-shaped structure formed by the first pin 221 and the second pin 222.

[0075] Of course, if the first pin 221 and the second pin 222 are sufficiently rigid and their connection with the column 510 is sufficiently stable, the aforementioned support plate 230 may not be necessary. However, in this case, the constraint area 2a is no longer a completely enclosed area, but rather a non-enclosed area with gaps. Therefore, the restraining effect on the lateral constraint rope 520 will be weakened, and in some special cases, the lateral constraint rope 520 may detach from the constraint area 2a. But this does not mean that the aforementioned non-enclosed structure has no practical value; it simply means that its restraining effect is slightly worse than that of a closed structure.

[0076] In a further embodiment, a limiting block 223 is provided at the position where the first pin 221 connects to the second pin 222. The two ends of the first rotating body 211 are restricted by the limiting block 223 and the surface of the column 510, respectively, and cannot move axially along the first pin 221. Similarly, the two ends of the second rotating body 212 are restricted by the limiting block 223 and the support plate 230, respectively, and cannot move axially along the second pin 222.

[0077] The above structure effectively prevents the axial movement of rotating bodies 211 and 212 by limiting them at both ends, thus improving the stability of the rotating bodies and preventing them from sliding along the pin.

[0078] Preferably, in this invention, both the first rotating body 211 and the second rotating body 212 are rollers with arc-shaped concave surfaces.

[0079] In this design, one end corner of the first rotating body 211 connects with one end corner of the second rotating body 212, and their concave arc surfaces connect to form a smooth transition arc surface. The gap at the connection point of this smooth transition arc surface (i.e., the position where the first rotating body 211 and the second rotating body 212 connect) is smaller than the outer diameter of the transverse constraint rope 520 to prevent the transverse constraint rope 520 from getting stuck. Typically, the gap at the connection point of the smooth transition arc surface is no larger than 1 / 2 of the outer diameter of the transverse constraint rope 520. For example, if the outer diameter of the transverse constraint rope 520 is 12mm, then the maximum value of the gap at the connection point usually cannot exceed 6mm. Of course, the smaller the size of this gap, the better, without causing the two rotating bodies to interfere with each other.

[0080] Furthermore, to ensure that the gap at the connection point is as small as possible, the first rotating body 211 and the second rotating body 212 can use rollers of completely identical dimensions (including identical dimensions of the arc-shaped concave surfaces). When the end corners of the first rotating body 211 and the second rotating body 212 are connected, it must be ensured that the centers of their arc-shaped concave surfaces are nearly coincident. Thus, the arc-shaped concave surfaces of both can form an arc surface with a small gap and a wall surface close to a smooth circular arc segment (see...). Figure 6 This ensures that the lateral restraint rope 520 can smoothly transition between the two rotating bodies. When the lateral restraint rope 520 is simultaneously attached to the first rotating body 211 and the second rotating body 212, the movement of the lateral restraint rope 520 can drive the two rotating bodies to rotate smoothly without the rotating bodies getting stuck or the rope getting stuck. It can also minimize the risk of scratches and wear on the surface of the lateral restraint rope 520 due to excessive gaps.

[0081] The arc-shaped concave surface of the roller has the following functions: (1) it can provide a larger support surface and can limit the sliding of the transverse constraint rope 520 along the axial direction of the roller to a certain extent; (2) when the arc-shaped concave surfaces of the two rotating bodies are the same size, they can connect with the arc-shaped concave surfaces of the adjacent rollers to form a smooth transition arc surface with a small gap.

[0082] It should be noted that, regarding the aforementioned roller with an arc-shaped concave surface, the roller can be as follows: Figure 3 The monolithic structure shown can also be as follows: Figure 8 The diagram shows a split-type structure. In this split-type structure, the roller is composed of multiple independently rotatable sub-rollers, the outer surfaces of which together form the arc-shaped concave surface, thus achieving a similar effect to the integral roller described above. However, since the split-type roller is relatively more expensive, and the gaps between the sub-rollers may damage the surface of the lateral restraint rope 520, the integral roller is usually a better choice.

[0083] Furthermore, the structural forms of the first rotating body 211 and the second rotating body 212 are not limited to the roller with the arc-shaped concave surface described above, and the following structural forms can also be adopted:

[0084] Both the first rotating body 211 and the second rotating body 212 use rollers with a constant outer diameter, such as Figure 9 As shown, although a smooth transition arc surface is not formed at the corners where the two rotating bodies connect, the two first rotating bodies can still generate rolling friction when the lateral constraint rope 520 is simultaneously attached to them. However, the working effect is inferior to that of a roller with an arc-shaped concave surface. Of course, the roller with the constant outer diameter mentioned above can also be an integral structure (see...). Figure 9 It can also be a split structure (see...). Figure 10 However, an integral structure is superior to a split structure.

[0085] It should be noted that rollers with a constant outer diameter perform worse than rollers with a concave surface. Therefore, rollers with a concave surface are usually preferred.

[0086] In addition, the above-mentioned rollers can be used in combination in specific applications. For example, one rotating element can be a one-piece roller with a curved concave surface, while the other rotating element can be a split roller with a constant outer diameter, or other combinations thereof. However, the optimal implementation method is still as follows: Figure 3 Both rollers shown are integral rollers with a curved concave surface.

[0087] Additionally, see Figure 5 The guide device 200 may further include a housing 240, which is fixed to the surface of the column 510 and encloses the first rotating body 211 and the second rotating body 212 therein. The housing 240 is provided with a clearance notch corresponding to the constraint area 2a to avoid contact with the transverse constraint rope 520, so as to prevent cutting the transverse constraint rope 520. The housing 240 is mainly used to improve the aesthetics of the guide device 200.

[0088] Example 2:

[0089] See Figure 11 In this embodiment, the number of rotating bodies 210 differs from that in Embodiment 1, and there are three: rotating body I 215, rotating body II 216, and rotating body III 217. Rotating body I 215 is installed on the side of the constraint area 2a closest to the base of the column 510, rotating body II 216 is installed on the side of the constraint area 2a furthest from the surface of the column 510, and rotating body III 217 is installed on the side of the constraint area 2a closest to the top of the column 510.

[0090] Thus, the rotating body I 215, rotating body II 216, rotating body III 217 and the surface of the column 510 together enclose the constraint area 2a, which is also a completely closed area.

[0091] As described in Embodiment 1, regardless of the specific θ value at which the column 510 is installed, the rotating body III 217 will generally not contact the lateral restraint rope 520. Therefore, the rotating body III 217 provided in this embodiment on the side of the restraint area 2a near the head of the column 510 is generally implemented as an optional alternative to Embodiment 1. The rotating body III 217 will only participate in contact with the lateral restraint rope 520 and provide rolling friction in certain special cases when the lateral restraint rope 520 jumps off the surface of the rotating body I 215 or the rotating body II 216.

[0092] In this embodiment, similar to Embodiment 1, the guiding device 200 further includes pin I 225, pin II (not labeled in the figure due to obstruction), and pin III 227. Pin I 225, pin II, and pin III 227 form a generally U-shaped structure and are fixed to the column 510. That is, one end of pin I 225 and pin III 227 are fixed to the surface of the column 510, and both ends of pin II are fixedly connected to the other ends of pin I 225 and pin III 227, respectively. Rotating body I 215 is rotatably sleeved on pin I 225, rotating body II 216 is rotatably sleeved on pin II, and rotating body III 217 is rotatably sleeved on pin III 227.

[0093] Furthermore, similar to Embodiment 1, a limiting block 223 is provided at the position where pin I 225 and pin II are connected, and a limiting block 223 is also provided at the position where pin II and pin III 227 are connected. The function of the limiting block 223 here is the same as in Embodiment 1, which is to restrict the axial movement of the rotating body.

[0094] In this embodiment, rotating bodies I 215, II 216, and III 217 are all rollers with arc-shaped concave surfaces. One end of rotating body I 215 connects to one end of rotating body II 216, and the other end of rotating body II 216 connects to one end of rotating body III 217. The arc-shaped concave surfaces of the three bodies connect to form a smooth transition arc surface. The gap at the connection of this smooth transition arc surface is smaller than the outer diameter of the transverse constraint rope to prevent the transverse constraint rope 520 from getting stuck. Similar to Embodiment 1, the gap at the connection of this smooth transition arc surface is generally no larger than 1 / 2 of the outer diameter of the transverse constraint rope 520. Likewise, the smaller the gap, the better, without causing interference between the rotating bodies.

[0095] Similarly, to ensure that the gaps at the aforementioned joints are as small as possible, rotating bodies I 215, II 216, and III 217 can also use rollers of completely identical dimensions (including identical dimensions of the arc-shaped concave surfaces). When the end corners of the first rotating body I 215 and the second rotating body II 216 are connected, it must be ensured that the centers of their arc-shaped concave surfaces are nearly coincident. Similarly, when the end corners of the second rotating body II 216 and the rotating body III 217 are connected, it must also be ensured that the centers of their arc-shaped concave surfaces are nearly coincident. Thus, the arc-shaped concave surfaces of the three bodies can form arc surfaces with small gaps and walls that are close to smooth arc segments. This ensures that the lateral restraint rope 520 can smoothly transition between adjacent rotating bodies, and that the rotating bodies or ropes will not get stuck when the lateral restraint rope 520 moves. At the same time, the smaller gaps also reduce scratches and wear on the surface of the lateral restraint rope 520.

[0096] Of course, the aforementioned roller with the curved concave surface can also be selected as an integral structure or a split structure, with an integral structure generally being a better choice. Alternatively, the aforementioned rotating body can also use a roller with a constant outer diameter, which can also be selected as an integral structure or a split structure. Furthermore, several types of rollers can be used in combination. These situations are similar to those in Embodiment 1, and therefore will not be described in detail.

[0097] Similar to Embodiment 1, this embodiment may also be provided with an outer shell to enclose the rotating body I 215, rotating body II 216 and rotating body III 217, thereby improving the aesthetics of the guide device 200.

[0098] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A guide device for the transverse restraint rope of the mesh, disposed on the side of a post (510) in a passive protection system, wherein the installation angle of the post (510) is limited to an angle θ between the axis of the post (510) and the horizontal plane, 0°≤θ≤90°, characterized in that, The guide device (200) includes: A constraint area (2a) through which the lateral constraint rope (520) passes; At least two rotating bodies (210) are set as the constraint boundaries of the constraint region (2a); The rotating body (210) is designed such that when the column (510) is installed at any θ value within the installation angle range, the transverse constraint rope (520) will contact and adhere to at least one of the rotating bodies (210) under the action of gravity. On top, to provide rolling friction as the lateral constraint rope (520) moves.

2. The guiding device for the transverse restraint rope of the mesh according to claim 1, characterized in that, The two rotating bodies (210) are a first rotating body (211) and a second rotating body (212), respectively; The first rotating body (211) is installed on the side of the constraint area (2a) near the column foot of the column (510); The second rotating body (212) is installed on the side of the constraint area (2a) away from the surface of the column (510).

3. The guiding device for the transverse restraint rope of the mesh according to claim 2, characterized in that, The guide device (200) further includes a first pin (221) and a second pin (222); The first pin (221) and the second pin (222) form a generally L-shaped structure and are fixed to the column (510); The first rotating body (211) is rotatably sleeved on the first pin (221), and the second rotating body (212) is rotatably sleeved on the second pin (222).

4. The guiding device for the transverse restraint rope of the mesh according to claim 3, characterized in that, The guiding device (200) also includes a support plate (230); One end of the first pin (221) is fixed to the surface of the column (510); The support plate (230) is spaced a predetermined distance from the first pin (221) and is also fixed to the surface of the column (510); One end of the second pin (222) is fixed to the first pin (221), and the other end is fixed to the support plate (230); The first rotating body (211), the second rotating body (212), the support plate (230), and the column (510) together enclose the constraint area (2a).

5. The guiding device for the transverse restraint rope of the mesh according to claim 4, characterized in that, A limit block (223) is provided at the position where the first pin (221) and the second pin (222) are connected; The two ends of the first rotating body (211) are restricted by the limiting block (223) and the surface of the column (510) respectively, and cannot move along the axial direction of the first pin (221); The two ends of the second rotating body (212) are restricted by the limiting block (223) and the support plate (230) respectively, and cannot move along the axial direction of the second pin (222).

6. The guiding device for the transverse restraint rope of the mesh according to any one of claims 2 to 5, characterized in that, The first rotating body (211) and the second rotating body (212) are both rollers with arc-shaped concave surfaces; wherein, one end corner of the first rotating body (211) and one end corner of the second rotating body (212) are connected to each other, and the arc-shaped concave surfaces of the two are connected to form a smooth transition arc surface, and the gap at the connection of the smooth transition arc surface is smaller than the outer diameter of the transverse constraint rope.

7. The guiding device for the transverse restraint rope of the mesh according to claim 1, characterized in that, The rotating body (210) consists of three parts, namely rotating body I (215), rotating body II (216) and rotating body III (217); The rotating body I (215) is installed on the side of the constraint area (2a) near the column foot of the column (510); The rotating body II (216) is installed on the side of the constraint area (2a) away from the surface of the column (510); The rotating body III (217) is installed on the side of the constraint area (2a) near the head of the column (510); The surfaces of rotating body I (215), rotating body II (216), rotating body III (217) and column (510) together enclose the constraint area (2a).

8. The guiding device for the transverse restraint rope of the mesh according to claim 7, characterized in that, The guide device (200) also includes pin I (225), pin II and pin III (227); The pin I (225), pin II and pin III (227) form a generally U-shaped structure and are fixed to the column (510); The rotating body I (215) is rotatably sleeved on the pin I (225), the rotating body II (216) is rotatably sleeved on the pin II, and the rotating body III (217) is rotatably sleeved on the pin III (227). Among them, the rotating body I (215), rotating body II (216) and rotating body III (217) are all rollers with arc-shaped concave surfaces; wherein, one end corner of the rotating body I (215) is connected to one end corner of the rotating body II (216), and the other end corner of the rotating body II (216) is connected to one end corner of the rotating body III (217). The arc-shaped concave surfaces of the three are connected to form a smooth transition arc surface, and the gap at the connection of the smooth transition arc surface is smaller than the outer diameter of the transverse constraint rope.

9. The guiding device for the transverse restraint rope of the mesh according to claim 1, characterized in that, The guide device (200) also includes a housing (240); the housing (240) is fixed to the surface of the column (510) and covers the rotating body (210) therein, and the housing (240) is provided with an avoidance notch corresponding to the constraint area (2a) to avoid contact with the transverse constraint rope.

10. The guiding device for the transverse restraint rope of the mesh according to claim 1, characterized in that, The guiding device (200) also includes a support plate (230); The two rotating bodies (210) and the support plate (230) form a roughly U-shaped structure, and together with the surface of the column (510), they enclose the constraint area (2a).

11. A passive protection system, comprising a column (510), characterized in that, The side of the column (510) is provided with a guide device (200) for the transverse restraint rope of the mesh as described in any one of claims 1 to 10.

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