Combined multifunctional emergency rescue protective net

Abstract

The utility model provides a combined type multifunctional emergency rescue protective net which comprises a base, the base is a supporting chassis of a circular structure, a middle supporting frame is arranged in the middle of the base, a plurality of sets of side supporting frames are arranged on the outer side of the base at equal angles, a protective frame is rotationally installed at the upper ends of the side supporting frames, and the upper end of the middle supporting frame is rotationally installed on the inner side of the protective frame. A ball head is arranged at the upper end of the vertical buffer, a rotating block is rotationally installed through the ball head, a buffer structure block is fixedly installed at the upper end of the middle supporting frame, and the rotating block is fixedly installed on the outer side of the protection frame. According to the utility model, the impact force vector is optimized: the horizontal component of the impact force is improved by the inclined net surface, and the impact pressure in the vertical direction is effectively reduced; according to the composite buffering mechanism, a core buffering assembly adopts a three-stage energy dissipation design, first-stage buffering is that an outer frame and an inner frame form a rotating pair, second-stage buffering is that a hydraulic buffering rod provides axial damping, and third-stage buffering is that titanium alloy telescopic strips are arranged in a staggered mode, so that multidirectional load distribution is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safety protection net, especially relates to a combined multifunctional emergency rescue protection net. BACKGROUND

[0002] Emergency rescue protection net is an important component of emergency rescue equipment, and its development is closely related to the reform of emergency management industry in China. In recent years, China has made remarkable achievements in emergency rescue capacity building, forming a multi-level emergency rescue system including professional emergency rescue forces, social emergency forces and grass-roots emergency rescue forces. In the emergency rescue site, the application of equipment such as protection net can effectively protect the safety of rescue personnel and disaster victims and reduce the occurrence of secondary disasters.

[0003] Usually installed at the edge of the outer periphery or high working platform of the building. It can enclose the building or working area to avoid accidental falling of personnel, and also can be used to prevent building materials from falling from high place. In the scene of emergency rescue, vertical net can be used to protect the safety of rescue personnel working at high place, or used in temporary protection facilities in disaster site.

[0004] The traditional falling object protection device adopts flat net structure, which has the following technical defects:

[0005] 1. Structural mechanics limitation: flat net surface stress concentration when impacted, easy to cause plastic deformation of structure;

[0006] 2. Single buffer level: dependent on single point spring buffer, energy dissipation efficiency is insufficient;

[0007] 3. Significant blind area of protection: there are generally 5cm or more uncontrollable openings in the gap between the net surface.

[0008] Therefore, a combined multifunctional emergency rescue protection net is proposed to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0009] (I) Technical problems solved

[0010] In view of the defects of prior art, the utility model provides a combined multifunctional emergency rescue protection net, which solves the technical problem of safety protection.

[0011] (II) Technical scheme

[0012] In order to achieve the above purpose, the utility model is realized by the following technical scheme:

[0013] A combined multifunctional emergency rescue protection net, comprising

[0014] The base is a circular structure supporting the base plate, a middle support frame is arranged in the middle of the base, a plurality of groups of side support frames are arranged at equal angles on the outer side, a protective frame is rotatably installed on the upper end of the side support frame, the middle support frame is rotatably installed on the inner side of the protective frame, wherein the protective frame is a fan-shaped structure net for protecting falling objects in the vertical direction, and the height of the middle support frame is lower than the height of the side support frame on the outer side, so as to form a downward inclined structure of the protective frame, and the stress environment of the falling object is optimized.

[0015] The vertical buffer upper end is provided with a ball head, a rotating block is rotatably installed through the ball head, a buffer structure block is fixedly installed on the upper end of the middle support frame, the rotating block is fixedly installed on the outer side of the protective frame, a middle rotating block is arranged at the end of the buffer structure block, and the middle rotating block is rotatably installed on the inner side of the protective frame, and the two sides of the protective frame are fixedly installed through the rotating block and the buffer structure block,

[0016] Due to the problem of elastic stretching, in order to ensure the spacing of the protective frames, a plurality of groups of protective frames are arranged with spacing, a plurality of groups of elastic drag ropes are arranged between the protective frames, the gaps of the spacing are supplemented through the elastic drag ropes, and the safety protection dead angle is avoided.

[0017] The middle support frame and the side support frame are provided with vertical buffers, and the vertical buffers are vertical direction hydraulic spring buffers for absorbing the impact load in the vertical direction.

[0018] The buffer structure block comprises an outer frame and an inner frame, the inner frame is rotatably installed on the outer side of the middle support frame, the outer side of the inner frame is rotatably installed on one end of a buffer rod, the other end of the buffer rod is an outer frame, a plurality of outer frames are arranged with spacing, a plurality of groups of telescopic strips are rotatably installed between the spacing, and the outer side of the outer frame is fixedly connected with the inner side of the protective frame through bolts, wherein the buffer rod is a telescopic pull rod structure, and when one group of protective frames and outer frames are impacted by falling objects, the buffer rod is stretched, and the telescopic strips on the two sides of the outer frame are combined to perform combined buffering.

[0019] (Three) beneficial effects

[0020] 1 Impact force vector optimization: the inclined net surface makes the horizontal component of the impact force increase to 42% of the total load (traditional structure <15%), effectively reducing the vertical impact pressure;

[0021] 2 Compound buffer mechanism, the core buffer assembly adopts a three-stage energy dissipation design:

[0022] First-stage buffer: the rotating pair composed of the outer frame and the inner frame allows ±15° deflection,

[0023] Second-stage buffer: the hydraulic buffer rod provides axial damping, and the stroke range is 20-40 cm,

[0024] Three-stage buffer: staggered titanium alloy telescopic bars achieve multi-directional load distribution.

[0025] In addition, a cover plate is installed above the overall structure of the buffer block, and a 3mm thick polymer composite material cover plate is added to the top, which has impact resistance and corrosion resistance properties. Attached Figure Description

[0026] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a side view of a combined multifunctional emergency rescue and protection net according to the present invention.

[0028] Figure 2 This is a top view of a combined multifunctional emergency rescue and protection net according to this utility model;

[0029] Figure 3 This is a structural diagram of a buffer structure block in a combined multifunctional emergency rescue and protection net of this utility model.

[0030] Legend:

[0031] 1. Base; 2. Central support frame; 3. Side support frame; 4. Vertical buffer; 5. Ball head; 6. Rotating block; 7. Protective frame;

[0032] 8. Buffer structure block; 81. Outer frame; 82. Inner frame; 83. Buffer rod; 84. Spacing; 85. Telescopic strip;

[0033] 9. Central rotating block; 10. Elastic tow rope. Detailed Implementation

[0034] This application provides a combined multi-functional emergency rescue and protection net to solve the safety protection problem in the prior art. Through the above structural design, the structural design of the inclined net can be realized, improving the traditional flat structure into an inclined structure, which better disperses the impact force of falling objects.

[0035] Example 1

[0036] like Figures 1-2 As shown, the technical solution in this application embodiment is to solve the above-mentioned security protection problem, and the overall idea is as follows:

[0037] To address the problems existing in the prior art, this utility model provides a combined multifunctional emergency rescue and protection net, including...

[0038] Base 1, the base 1 is a circular structure support chassis, the middle part of the base 1 is provided with a middle support frame 2, the outer side of the 1 is provided with a plurality of groups of side support frames 3, the upper end of the side support frame 3 is rotatably installed with a protective frame 7, the upper end of the middle support frame 2 is rotatably installed in the inner side of the protective frame 7, wherein the protective frame 7 is a fan-shaped structure net, which is used for protecting the falling objects in the vertical direction, wherein the height of the middle support frame 2 is lower than the height of the side support frame 3 on the outer side, so as to form a downward inclined structure of the protective frame 7, and the stress environment of the falling object is optimized.

[0039] The upper end of the vertical buffer 4 is provided with a ball head 5, the ball head 5 is rotatably installed with a rotating block 6, the upper end of the middle support frame 2 is fixedly installed with a buffer structure block 8, the rotating block 6 is fixedly installed on the outer side of the protective frame 7, the end of the buffer structure block 8 is provided with a middle rotating block 9, the middle rotating block 9 is rotatably installed on the inner side of the protective frame 7, the two sides of the protective frame 7 are fixedly installed through the rotating block 6 and the buffer structure block 8,

[0040] Due to the problem of elastic stretching, in order to ensure the interval of the protective frame 7, a plurality of protective frames 7 are provided with interval, a plurality of elastic drag ropes 10 are arranged between the protective frames 7, the gap of the interval is supplemented by the elastic drag rope 10, the material falling in the gap is avoided, and the safety protection dead angle is avoided.

[0041] The middle part of the middle support frame 2 and the side support frame 3 is provided with a vertical buffer 4, the vertical buffer 4 is a hydraulic spring buffer piece arranged in the vertical direction, which can absorb the impact load in the vertical direction.

[0042] As Figure 3 As shown in the figure, the buffer structure block 8 comprises an outer frame 81 and an inner frame 82, the outer side of the middle support frame 2 is rotatably installed with the inner frame 82, the outer side of the inner frame 82 is rotatably installed on one end of the buffer rod 83, the other end of the buffer rod 83 is the outer frame 81, a plurality of outer frames 81 are provided with intervals 84, wherein the elastic strips 85 are rotatably installed between the two intervals 84, the outer side of the outer frame 81 is fixedly connected with the inner side of the protective frame 7 through bolts, wherein the buffer rod 83 is a telescopic pull rod structure, when a group of protective frames 7 and outer frames 81 are impacted by falling objects, the buffer rod 83 is stretched, and the elastic strips 85 on both sides of the outer frame 81 are combined to buffer.

[0043] Technical effects:

[0044] 1 Impact force vector optimization: the inclined net surface makes the horizontal component of the impact force increase to 42% of the total load (traditional structure <15%), effectively reducing the vertical impact pressure;

[0045] 2 Compound buffer mechanism 8, the core buffer component adopts a three-stage energy dissipation design:

[0046] Primary buffer: The rotating joint formed by the outer frame 81 and the inner frame 82 allows for ±15° deflection.

[0047] Secondary buffer: The hydraulic buffer rod 83 provides axial damping with a stroke range of 20-40cm.

[0048] Three-stage buffer: staggered titanium alloy telescopic bars 85 achieve multi-directional load distribution.

[0049] In addition, a cover plate is installed above the overall structure of the buffer structure block 8, and a 3mm thick polymer composite material cover plate is added to the top, which has impact resistance and corrosion resistance properties.

[0050] To avoid damage caused by the impact and secondary rebound of falling objects, the above structural design enables the creation of an inclined mesh structure. This improves upon the traditional flat structure by creating an inclined structure, better dispersing the impact force of falling objects. The vertical buffer 4 provides vertical cushioning, and the inclined, multi-positional force dissipation of the buffer block 8 further enhances the impact resistance. This device achieves vector decomposition of the impact force through its inclined structural design. Combined with the linear energy dissipation of the vertical buffer 4 and the spatial load distribution of the buffer block 8, the impact energy of falling objects can be dissipated in stages.

[0051] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A combined multi-functional emergency rescue and protection net, characterized in that, include: The base (1) is a circular structure support chassis. A central support frame (2) is provided in the middle of the base (1). Several sets of side support frames (3) are provided at equal angles on the outer side of the base (1). A protective frame (7) is rotatably installed on the upper end of the side support frame (3). The upper end of the central support frame (2) is rotatably installed on the inner side of the protective frame (7).

2. The combined multifunctional emergency rescue and protection net according to claim 1, characterized in that, A ball head (5) is provided at the upper end of the vertical buffer (4), and a rotating block (6) is installed by rotating the ball head (5). A buffer structure block (8) is fixedly installed at the upper end of the middle support frame (2), and the rotating block (6) is fixedly installed on the outside of the protective frame (7).

3. The combined multifunctional emergency rescue and protection net according to claim 2, characterized in that, The buffer structure block (8) is provided with a central rotating block (9) at its end. The central rotating block (9) is rotatably installed on the inner side of the protective frame (7). The two sides of the protective frame (7) are fixedly installed by the rotating block (6) and the buffer structure block (8).

4. The combined multifunctional emergency rescue and protection net according to claim 2, characterized in that, The protective frame (7) is a fan-shaped mesh structure, in which the height of the middle support frame (2) is lower than the height of the outer side support frame (3).

5. A combined multifunctional emergency rescue and protection net according to claim 3, characterized in that, The buffer structure block (8) includes an outer frame (81) and an inner frame (82). The inner frame (82) is rotatably mounted on the outside of the middle support frame (2). The outer frame (82) is rotatably mounted on one end of the buffer rod (83), and the other end of the buffer rod (83) is the outer frame (81).

6. The combined multifunctional emergency rescue and protection net according to claim 5, characterized in that, Multiple sets of outer frames (81) are provided with intervals (84), and telescopic strips (85) are rotatably installed between each pair of intervals (84). The outer side of the outer frame (81) is fixedly connected to the inner side of the protective frame (7) by bolts, and the buffer rod (83) is a telescopic tie rod structure.

7. A combined multifunctional emergency rescue and protection net according to claim 4, characterized in that, The protective frames (7) are spaced apart, and several sets of elastic towing ropes (10) are provided between the protective frames (7).

8. A combined multifunctional emergency rescue and protection net according to claim 1, characterized in that, The middle support frame (2) and the side support frame (3) are both provided with vertical buffers (4), which are hydraulic spring buffers arranged in the vertical direction.

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