Slope protection net falling test device
By using a winding machine and a support net assembly in the slope protection net drop test device, the laying conditions under different directions and tensions are simulated, which solves the problem that existing devices cannot accurately simulate the actual environment and achieves more realistic test results.
Patent Information
- Application Number
- CN202520162848.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing slope protection net drop test devices cannot effectively simulate the laying and tensioning state of slope protection nets in actual environments, resulting in discrepancies between test results and actual effects.
A slope protection net drop test device was designed. By setting up a winding machine and a cable on both sides of the wall, the rolling of the cable realizes the movement of the falling block in different directions. Combined with the support net component, the tension force at different positions is simulated to simulate the laying and tensioning conditions in the actual environment.
This improves the realism of drop tests, enabling more accurate assessments of the strength and safety of slope protection nets and providing test results that are closer to reality.
Smart Images
Figure CN223664233U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of slope protection net testing equipment, and concretely relates to a slope protection net falling test device. BACKGROUND
[0002] The slope protection net is a kind of protection equipment used in slope engineering such as highway, railway landslide etc. It is mainly used to limit the weathering and peeling or damage of slope rock-soil body and dangerous rock collapse, or control the movement of falling rock within a certain range. Thus, it prevents soil, stone, snow avalanche etc. from sliding down the slope and impacting on traffic facilities such as highway, railway etc. to prevent traffic accidents. In order to ensure the protection effect of the slope protection net produced, the corresponding slope protection net testing equipment is needed to test the net surface strength.
[0003] The slope protection net falling test device is mainly used to simulate the ability of slope protection net to withstand the impact of falling rock or other heavy objects under actual conditions, to evaluate its safety and reliability. The existing falling test device mainly lifts the heavy object to a predetermined height, and then releases the heavy object to make it free fall, to simulate the weight and impact force of falling rock or other impact objects.
[0004] Although the existing falling test device can test the falling of heavy objects, the simulation effect is not good, and it cannot simulate the laying state and tension state of the slope protection net in the actual environment, so that there is a certain gap between the test effect and the actual effect. UTILITY MODEL CONTENT
[0005] The purpose of the present application is to provide a slope protection net falling test device, which realizes the technical problem of more actual net laying environment and tension condition in the slope protection net falling test.
[0006] In order to solve the above technical problem, the scheme adopted by the present application is as follows:
[0007] A slope protection net falling test device, comprising a wall body, the wall body surface two sides are respectively provided with a wire winding machine, each wire winding machine is wound with one end of a cable, the other end of the corresponding cable is connected with one side of a falling block, the middle part of the cable is slidably sleeved on a wire supporting shaft, and the wire supporting shaft is higher than the wire winding machine.
[0008] Preferably, a rack is arranged below the falling block, and the rack comprises a vertical rack and a horizontal parallel rack.
[0009] Preferably, the horizontal parallel rack is paved with a protection net, and the edge of the protection net is fixed on the rectangular frame body of the horizontal parallel rack through a fixing assembly.
[0010] Preferably, the vertical rack is vertically paved with a protection net, and the edge of the protection net is fixed on the rectangular frame body of the vertical rack through a fixing assembly.
[0011] Preferably, a plurality of net supporting assemblies are arranged in the rectangular frame body of the vertical row frame, the net supporting end of the net supporting assembly is in abutment with the net surface of the protective net, and the net supporting end is not in the same plane as the net surface of the protective net when the net is being supported.
[0012] Preferably, the net supporting assembly comprises a driving member and a supporting block, the driving member is fixed in the rectangular frame body of the vertical row frame, the driving end of the driving member is fixedly connected with the supporting block, and the supporting block is in abutment with the net surface of the protective net.
[0013] Preferably, the fixing assembly comprises a bolt member and a gasket.
[0014] Preferably, the rectangular frame bodies of the vertical row frame and the horizontal parallel frame are respectively provided with a plurality of threaded holes, the threaded holes are uniformly arranged along the shape of the rectangular frame body, the threaded holes are threadedly matched with bolt members, and the bolt members pass through the edge of the net surface of the protective net.
[0015] Preferably, a plurality of gaskets are sleeved on the bolt members, and the plurality of gaskets are respectively distributed on both sides of the net surface of the protective net.
[0016] Preferably, the wire supporting shaft rod comprises a supporting beam, one end of the supporting beam is fixed on the surface of the wall body, the other end of the supporting beam is fixed with a sliding rod, the wire segment of the cable is held by the sliding rod, and the wire segment of the cable is slidingly arranged on the surface of the sliding rod.
[0017] Preferably, the wire supporting shaft rod further comprises a guide column, the guide column is rotationally arranged on the surface of the sliding rod, one guide column is arranged at each end of the shaft of the sliding rod, and the axial direction of the guide column is perpendicular to the axial direction of the sliding rod.
[0018] Preferably, the threaded holes on the vertical row frame are horizontally arranged, and the threaded holes on the horizontal parallel frame are vertically arranged.
[0019] The technical scheme has at least the following advantages and beneficial effects:
[0020] In the utility model, two wire winding machines are symmetrically arranged on the wall body, the cables are wound together to hold the block, when two wires are synchronously wound, the horizontal net surface can be tested by falling; when a single wire winding machine is wound, the vertical net surface can be tested by falling, and different net surface laying environments are increased.
[0021] In the utility model, the net supporting assembly is arranged to support different positions of the tensioned net surface, the tension of the net surface at different positions is changed, the tensioning force of the net surface by the protruding rocks in the protective net in the real environment is simulated, and the authenticity of the falling test is improved. DRAWINGS
[0022] Figure 1 The utility model discloses a structure schematic view.
[0023] Figure 2It is the front view structural schematic diagram of the utility model.
[0024] Figure 3 It is the cross section structural schematic diagram of the utility model.
[0025] Figure 4 It is the top view structural schematic diagram of the utility model.
[0026] Figure 5 It is the cross section structural schematic diagram of the utility model in row frame.
[0027] In the drawing: 1-wall body, 2-row frame, 201-vertical frame body, 202-horizontal frame body, 203-crawling ladder, 3-fixing assembly, 301-bolt piece, 302-gasket, 4-protection net, 5-winding machine, 6-wire supporting shaft rod, 601-supporting beam, 602-sliding rod, 603-guide column, 7-banging block, 8-net supporting assembly, 801-clamping groove block, 802-supporting block, 803-screw rod, 9-inhaul cable. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. If the orientation or position relationship indicated by the terms "center", "upper", "lower", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship when the product of the application is usually placed, and is only for the convenience of describing the application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, cannot be understood as limiting the application. It should also be noted that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect" appear, they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.
[0030] EMBODIMENT
[0031] Please refer toFigures 1-5 The utility model provides a kind of side slope protection net falls and tests device, including wall 1, frame 2, fixed assembly 3, protection net 4, winding machine 5, wire shaft lever 6, block 7, support net assembly 8, cable 9.
[0032] Further, wall 1 is erected on ground, and the test end wall surface of wall 1 is provided with falling device, for realizing falling function, and frame 2 is provided on the ground beside the test wall surface of wall 1, protection net 4 is fixed on frame 2, and protection net 4 is tensioned, and falling test is carried out using falling device on wall 1.
[0033] Among them, falling device includes winding machine 5, wire rod, cable 9, block 7.
[0034] Among them, the wall surface of wall 1 is fixedly provided with winding machine 5 on both sides, and each winding machine 5 is correspondingly provided with cable 9 and wire shaft lever 6;One end of cable 9 is wound by winding machine 5, and the other end of cable 9 is connected to one side of block 7, and the middle part of cable 9 is slidably sleeved on wire shaft lever 6, and the height of wire shaft lever 6 is higher than that of winding machine 5, so as to lift block 7 by winding machine 5;So that block 7 is connected with one cable 9 on both sides respectively, and the height of block 7 is changed by winding of winding machine 5.
[0035] Preferably, when falling test is carried out, winding machine 5 on both sides of wall 1 simultaneously winds cable 9, vertically lifts block 7 to falling height, then winding machine 5 stops working, and removes reverse protection, so that block 7 falls under gravity and falls on the net surface of tensioned protection net 4 on frame 2, to test the strength of net surface.
[0036] Further, frame 2 is provided below block 7, and frame 2 includes vertical frame 2 and horizontal parallel frame 2.
[0037] Among them, horizontal parallel frame 2 is paved with protection net 4 on plane, and the edge of protection net 4 is fixed on the rectangular frame body of horizontal parallel frame 2 by fixed assembly 3, to realize the tension of net surface;Protection net 4 is vertically paved on vertical frame 2, and the edge of protection net 4 is fixed on the rectangular frame body of vertical frame 2 by fixed assembly 3, to realize the tension of net surface.
[0038] Preferably, when falling test is carried out on protection net 4 paved on plane of horizontal parallel frame 2, winding machine 5 on both sides of wall 1 simultaneously winds cable 9, so that block 7 vertically falls;When falling test is carried out on protection net 4 vertically paved on vertical frame 2, winding machine 5 on one side of wall 1 close to protection net 4 winds cable 9, and winding machine 5 on the other side does not wind cable 9, and reverse protection is removed, so that block 7 swings towards one side of protection net 4 and hits protection net 4 vertically paved on vertical frame 2, to carry out falling test on protection net 4 in different paving conditions, and test the strength of net surface.
[0039] It is worth mentioning that the initial falling height of the hammer block 7 can be changed by the joint action of the two side winding machines 5, and different falling heights can be used for different degrees of falling test. By observing the falling deformation or rupture of the protective net 4 under different falling heights, the strength range of the net surface of the protective net 4 tested can be determined.
[0040] Please refer to Figure 3 and Figure 5 In this embodiment, a plurality of net supporting assemblies 8 are also arranged in the rectangular frame body of the vertical row frame 2, and the net supporting ends of the net supporting assemblies 8 abut against the net surface of the protective net 4. When the net is supported, the net supporting ends at different positions support the net surface to different degrees, so that the ends of the net surface laid in the vertical plane are lifted, the tension of the net surface at different positions is different, the net supporting ends and the net surface of the protective net 4 are no longer in the same plane, and the tension state of the protective net 4 protecting the slope falling rock in the real environment is simulated, so as to provide more real test results for the falling test.
[0041] Among them, the net supporting assembly 8 includes a driving piece and a supporting block 802.
[0042] Specifically, the driving piece is fixed in the rectangular frame body of the vertical row frame 2, the driving end of the driving piece is fixedly connected with the supporting block 802, the supporting block 802 abuts against the net surface of the protective net 4, and the driving block is used to drive the supporting block 802 to displace different distances towards the net surface, so as to realize different degrees of net surface tension.
[0043] Among them, the driving piece is provided as a clamping groove block 801 and a screw rod 803, the clamping groove block 801 is fixed on the vertical row frame 2, the supporting block 802 is slidably arranged in the clamping groove in the clamping groove block 801, a screw hole is arranged in the clamping groove block 801, the screw rod 803 passes through the clamping groove block 801 and is matched and connected through the screw hole, one end of the screw rod 803 is rotationally connected with the supporting block 802, and when the screw rod 803 is rotated, the screw rod 803 is displaced relative to the clamping groove block 801 through the screw hole, so as to push the supporting block 802 to displace.
[0044] Please refer to Figures 3-5 In this embodiment, the wire supporting shaft 6 is used to lift the protective cable 9 and ensure that the winding machine 5 can lift the hammer block 7 by winding the cable 9.
[0045] Among them, the wire supporting shaft 6 includes a supporting beam 601, a sliding rod 602 and a guide column 603.
[0046] Specifically, one end of the supporting beam 601 is fixed on the surface of the wall body 1, the other end of the supporting beam 601 is fixed with the sliding rod 602, the wire segment of the cable 9 is lifted on the sliding rod 602, and the wire segment of the cable 9 is slidably arranged on the surface of the sliding rod 602. When winding, the cable 9 slides on the smooth surface of the sliding rod 602.
[0047] In addition, the guide column 603 is arranged in rotation on the circumferential surface of the slide rod 602, the shaft of the guide column 603 is perpendicular to the shaft of the slide rod 602, and the slide rod 602 is provided with one guide column 603 at each end of the shaft, because in the specific embodiment, the safety test range of the drop test is large for the safety, the volume of the support frame 2 for tensioning the protective net 4 is also large, and the volume of the winding machine 5 is small, so that the winding cable 9 exerts force on the two ends of the shaft of the slide rod 602, causing abrasion during sliding, therefore, the rotating guide column 603 is arranged at the two ends of the slide rod 602, the friction resistance exerted on the two ends of the slide rod 602 is reduced, and the normal sliding of the cable 9 is ensured by the rolling of the guide column 603.
[0048] Please refer to Figures 2-5 In the embodiment, the fixing assembly 3 is arranged on the support frame 2, and is used for fixing the tested protective net 4 on the support frame 2 and keeping the protective net 4 in a tensioned state.
[0049] The fixing assembly 3 includes a bolt 301 and a gasket 302.
[0050] Specifically, the surface of the vertical support frame 2 and the surface of the horizontal parallel frame 2 are respectively provided with a plurality of threaded holes, the threaded holes are uniformly arranged along the shape of the rectangular frame body, the hole diameter of the threaded holes on the vertical support frame 2 is arranged horizontally, and the hole diameter of the threaded holes on the horizontal parallel frame 2 is arranged vertically, so as to ensure the laying direction of the fixed net surface.
[0051] The bolt 301 is threadedly matched with the threaded hole, the bolt 301 penetrates through the edge of the net surface of the protective net 4, a plurality of gaskets 302 are sleeved on the bolt 301, and the plurality of gaskets 302 are distributed on the two sides of the net surface of the protective net 4 to press the net surface of the protective net 4.
[0052] During the laying of the protective net 4, the gaskets 302 are placed at the positions of the threaded holes of the support frame 2, then the protective net 4 is laid, then the gaskets 302 are placed on the net surface, and finally the threaded ends of the bolts 301 are sequentially penetrated through the gaskets 302 and the net surface and are threadedly locked, during the locking process, the gaskets 302 with large surface area are used to clamp and fix the net cable of the net surface, the net cable is sleeved on the bolt 301, and the net cable is tensioned.
[0053] In addition, the support frame 2 further includes a ladder 203, the ladder 203 is vertically fixed on the wall surface of the wall 1, and personnel can climb to the horizontal parallel frame 2 on the top of the support frame 2 to perform the fixing and tensioning work of the protective net 4.
[0054] Thus, the embodiments of the utility model have been described in detail. In order to avoid obscuring the concept of the utility model, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions of the utility model according to the above description, and the scope of the utility model is defined by the appended claims.
Claims
1. A device for testing the impact resistance of a slope protection net, comprising a wall (1), characterized in that, The wall body (1) is provided with a winding machine (5) on both sides of the surface, each winding machine (5) winds one end of a cable (9), the other end of the corresponding cable (9) is connected to one side of the block (7), the middle of the cable (9) is slidably sleeved on the wire supporting shaft (6), and the wire supporting shaft (6) is higher than the winding machine (5); The block (7) is provided with a row frame (2) below, and the row frame (2) comprises a vertical row frame (2) and a horizontal parallel frame (2); The horizontal parallel frame (2) is provided with a protective net (4) on the plane, and the edge of the protective net (4) is fixed on the rectangular frame body of the horizontal parallel frame (2) through a fixing assembly (3); The vertical row frame (2) is provided with a protective net (4) vertically, and the edge of the protective net (4) is fixed on the rectangular frame body of the vertical row frame (2) through a fixing assembly (3).
2. A device for testing the impact resistance of a slope protection net according to claim 1, characterized in that A plurality of net supporting assemblies (8) are arranged in the rectangular frame body of the vertical row frame (2), the net supporting end of the net supporting assembly (8) abuts against the net surface of the protective net (4), and the net supporting end and the net surface of the protective net (4) are not located in the same plane when the net is supported.
3. A falling weight test apparatus for a slope protection net according to claim 2, wherein The net supporting assembly (8) comprises a driving member and a supporting block (802), the driving member is fixed in the rectangular frame body of the vertical row frame (2), the driving end of the driving member is fixedly connected with the supporting block (802), and the supporting block (802) abuts against the net surface of the protective net (4).
4. The device for testing the falling of a slope protection net according to claim 1, wherein The fixing assembly (3) comprises a bolt (301) and a gasket (302); The rectangular frame bodies of the vertical row frame (2) and the horizontal parallel frame (2) are respectively provided with a plurality of threaded holes, the threaded holes are uniformly arranged along the shape of the rectangular frame body, the threaded holes are threadedly matched with the bolt (301), and the bolt (301) penetrates through the edge of the net surface of the protective net (4); A plurality of gaskets (302) are sleeved on the bolt (301), and the plurality of gaskets (302) are distributed on both sides of the net surface of the protective net (4).
5. A device for testing the impact resistance of a slope protection net according to claim 1, characterized in that The wire supporting shaft (6) comprises a supporting beam (601), one end of the supporting beam (601) is fixed on the surface of the wall body (1), the other end of the supporting beam (601) is fixedly connected with a sliding rod (602), the sliding rod (602) supports the cable segment of the cable (9), and the cable segment of the cable (9) is slidably arranged on the surface of the sliding rod (602).
6. A falling weight test apparatus for a slope protection net according to claim 5, wherein The wire supporting shaft (6) further comprises a guide column (603), the guide column (603) is rotationally arranged on the surface of the sliding rod (602), one end of the sliding rod (602) is provided with a guide column (603), and the axial direction of the guide column (603) is perpendicular to the axial direction of the sliding rod (602).
7. A falling weight test apparatus for a slope protection net as defined in claim 4, wherein The threaded holes on the vertical row frame (2) are horizontally arranged, and the threaded holes on the horizontal parallel frame (2) are vertically arranged.