A waterproof membrane impact resistance testing device

Abstract

The present invention relates to the technical field of impact resistance testing of waterproof membranes, and specifically proposes a device for impact resistance testing of waterproof membranes, comprising: a base, a pressing mechanism, and a multi-angle reciprocating impact mechanism. The present invention converts impact assemblies with different contact areas and adjusts the inclination angle of the impact assemblies relative to the waterproof membrane by coordinating a conversion drive group with an impact drive connection group and an angle adjustment drive group, and drives the impact assemblies to perform impact testing on the waterproof membrane. As a result, the impact assemblies with different contact areas reciprocate against the waterproof membrane at different inclination angles, simulating the impact forces of different objects and different inclination angles on the waterproof membrane during actual use, more comprehensively evaluating the impact resistance of the waterproof membrane, and improving the accuracy and reliability of the impact resistance test of the waterproof membrane.

Description

Technical Field

[0001] The invention relates to the technical field of impact resistance testing of waterproof coiled materials, and particularly proposes a device for testing the impact resistance of waterproof coiled materials. Background Art

[0002] Waterproof membrane is a material widely used in construction, water conservancy, transportation and other fields. It is mainly used to prevent water penetration and protect structures from water erosion. In actual use, waterproof membrane may be subjected to the impact of falling rocks and falling tools. Therefore, waterproof membrane needs to undergo impact resistance test during production. Impact resistance test is an important means to evaluate the ability of waterproof materials to resist external physical impact in actual use. This test is of great significance to ensure the long-term stability and reliability of the waterproof system.

[0003] At present, impact resistance testing is generally carried out through drop hammer impact tests, which are usually only tested at one angle (usually a vertical angle). It cannot fully simulate the complex stress conditions in actual use. Therefore, it is impossible to comprehensively evaluate the impact resistance of waterproof membranes at different angles, resulting in reduced reliability of test results. In addition, in actual use, the stress conditions of waterproof membranes when impacted by objects with different contact areas are also different. The existing test methods are also unable to comprehensively evaluate the impact resistance of waterproof membranes. Summary of the Invention

[0004] In view of the above problems, an embodiment of the present application provides a waterproof membrane impact resistance testing device to solve the technical problems in the related art.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: a waterproof membrane impact resistance testing device, comprising: a base, the top of the base is provided with two sliding grooves symmetrically arranged along its width direction, the two sliding grooves are slidably connected to a multi-angle reciprocating impact mechanism, and the top of the base is installed with a pressing mechanism for fixing the waterproof membrane, and the pressing mechanism is located between the two sliding grooves.

[0006] The multi-angle reciprocating impact mechanism includes a support leg slidably connected in a sliding groove, an arc frame is commonly installed on the top of the two support legs, the arc frame has a hollow structure in the middle, the opposite surfaces of the two arc sections of the arc frame are slidably connected to arc plates, a storage box is installed in the middle between the two arc plates through a bracket, the lower end of the storage box is connected to a connecting frame that slides up and down, the lower end of the connecting frame is connected to a plurality of impact components through a conversion drive group, and the contact area of ​​each impact component when impacting the waterproof membrane is different.

[0007] The tops of the two arc sections of the arc frame are rotatably connected to a drive shaft through ear plates. The drive shaft is equipped with an angle adjustment drive group that drives the arc plate to drive the storage box to perform multi-angle intermittent reciprocating rotation. A drive connecting frame is commonly installed between the two horizontal sections of the arc frame to drive the impact assembly to reciprocate and impact the waterproof membrane.

[0008] In one possible implementation, the conversion drive group includes a conversion shaft rotatably connected to the lower end of the connecting frame, a plurality of impact assemblies are connected to the side wall of the conversion shaft and are evenly arranged along the circumference of the conversion shaft, and the conversion shaft is connected to a rotating rod concentric with it and sliding along its axial direction through a spline fit, and one end of the rotating rod passes through the conversion shaft and is connected to the connecting frame through a threaded fit.

[0009] In one possible implementation, the angle adjustment drive group includes support rods installed between two arc-shaped plates and arranged symmetrically along their length directions, and arc-shaped racks symmetrically arranged along their length directions are installed on the two support rods. Gears are fixedly installed on the drive shaft and are arranged symmetrically along their length directions and mesh with the corresponding arc-shaped racks for transmission.

[0010] In one possible implementation, the impact drive connection group includes a through groove that is opened on both side walls of the storage box along its length direction and connected to its inner cavity. A top plate is installed on the top of the connecting frame. Both ends of the top plate arranged along its length direction pass through the through groove and are rollingly connected to the top with balls. A tension spring that is evenly arranged along the length direction of the top plate is installed between the top plate and the inner wall of the storage box. A reciprocating lifting assembly that reciprocally presses down the two ends of the top plate is installed between the two horizontal sections of the arc frame. A reciprocating driving source that drives the reciprocating lifting assembly is installed on the top of the arc frame.

[0011] In one possible implementation, the reciprocating lifting assembly includes two arc-shaped bars, which span above the two ends of the top plate. The ball bearings on the top plate are slidably connected to the inner arc surfaces of the corresponding arc-shaped bars and slide along the inner arc surfaces of the corresponding arc-shaped bars. Each horizontal section of the arc frame is equipped with two symmetrically arranged vertical upright plates through support plates. Spring grooves are provided on the vertical upright plates. The ends of the arc-shaped bars are connected to the spring grooves for up and down sliding, and a push spring is installed between the arc-shaped bars and the spring grooves. A connecting bar is installed between the ends of the two arc-shaped bars, and the connecting bar slides up and down through the vertical upright plates.

[0012] In one possible implementation, the reciprocating drive source includes a rotating shaft rotatably connected to the arc frame through an ear seat, and two cams arranged along its axial direction are fixedly sleeved on the rotating shaft. Horizontal connecting plates are installed on the opposite sides of the two arc bars, and rollers are rotatably connected to the horizontal connecting plates through vertical bars.

[0013] The compression mechanism includes two L-shaped supports connected to the top of the base and symmetrically arranged along its width direction. The opposite surfaces of the two L-shaped supports are jointly installed with a compression group, and the opposite back surfaces of the two L-shaped supports are both installed with a locking group. The compression group compresses the waterproof membrane while driving the locking group to lock the corresponding legs.

[0014] In one possible implementation, the compression group includes guide grooves provided on opposite surfaces of the vertical sections of two L-shaped supports, a pressure plate that slides up and down is connected to the guide groove, an I-shaped groove is provided on the base, an I-shaped frame that slides up and down is connected to the I-shaped groove, and connecting rods that pass through the I-shaped groove and are connected to the I-shaped frame are installed at the lower ends of both sides of the pressure plates arranged along their length direction.

[0015] In one possible implementation, the latch group includes slots that are opened on opposite surfaces of the vertical sections of the two legs and are evenly arranged along their length. An insertion rod corresponding to the slots is installed on the side of the vertical section of the L-shaped support close to the leg. A ball bearing is installed after the insertion rod slides into the guide groove. An oblique groove corresponding to the insertion rod is opened on the side of the pressure plate close to the insertion rod. An insertion block is installed on the end of the insertion rod away from the L-shaped support, and the insertion block is connected to the L-shaped support by a reset spring.

[0016] In one possible implementation, the vertical section of the L-shaped support is equipped with a sleeve that is sleeved on the insertion rod.

[0017] In one possible implementation, a plurality of pressure bars arranged along the width direction of the pressure plate are installed at the lower end of the pressure plate.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0019] 1. The present invention provides a device for testing the impact resistance of waterproof membranes. By coordinating a conversion drive group with an impact drive connection group and an angle adjustment drive group, the device converts impact assemblies with different contact areas and adjusts the inclination angle of the impact assemblies relative to the waterproof membrane, and drives the impact assemblies to perform impact tests on the waterproof membrane. Thus, by reciprocating impacts on the waterproof membrane with impact assemblies with different contact areas and at different inclination angles, the device simulates the impacts of different objects and at different inclination angles on the waterproof membrane during actual use, thereby more comprehensively evaluating the impact resistance of the waterproof membrane and improving the accuracy and reliability of the impact resistance test of the waterproof membrane.

[0020] 2. The present invention cooperates with the reciprocating pulling component and the impact drive connection group to drive the connecting frame that rotates to different angles with the waterproof membrane to move, thereby realizing the function of using the same driving source to drive the impact components at different angles to the waterproof membrane, thereby improving the convenience of impact resistance testing of the waterproof membrane after the angle of the impact component is changed.

[0021] 3. When the compression group in the present invention presses and fixes the waterproof membrane, the compression group drives the locking group to lock the legs of the multi-angle reciprocating impact mechanism, thereby realizing the integrated drive of the compression of the waterproof membrane and the locking of the legs, thereby avoiding displacement of the waterproof membrane and the multi-angle reciprocating impact mechanism during the impact test, which affects the accuracy of the impact test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0024] Figure 2 The present invention Figure 1 A in the enlarged view.

[0025] Figure 3 It is a first three-dimensional structural schematic diagram of the multi-angle reciprocating impact mechanism of the present invention (excluding the storage box).

[0026] Figure 4 It is a second three-dimensional structural schematic diagram of the multi-angle reciprocating impact mechanism of the present invention (excluding the storage box).

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressing mechanism of the present invention.

[0028] Figure 6 This invention Figure 1 Main sectional view.

[0029] Figure 7 The present invention Figure 6 Enlarged view of point B in .

[0030] Reference numerals:

[0031] 1. Base; 2. Sliding groove; 3. Multi-angle reciprocating impact mechanism; 30. Support leg; 31. Arc frame; 32. Arc plate; 33. Storage box; 34. Connecting frame; 35. Impact assembly; 36. Conversion drive group; 360. Conversion shaft; 361. Rotating rod; 37. Angle adjustment drive group; 370. Support rod; 371. Arc rack; 372. Gear; 38. Impact drive connection group; 380. Through groove; 381. Top plate; 382. Tension spring; 390. Arc bar; 391. Vertical plate; 392. Spring groove ; 393. Push spring; 394. Connecting strip; 39. Drive shaft; 301. Rotating shaft; 302. Cam; 303. Horizontal connecting plate; 304. Roller; 4. Pressing mechanism; 40. L-shaped support; 41. Pressing group; 410. Guide groove; 411. I-shaped groove; 412. I-shaped frame; 413. Connecting rod; 414. Pressing plate; 42. Locking group; 420. Slot; 421. Insert rod; 422. Bevel groove; 423. Insert block; 424. Return spring; 430. Sleeve; 440. Push strip; 5. Waterproof membrane. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] See Figure 1 A waterproof membrane impact resistance testing device includes: a base 1, two sliding grooves 2 symmetrically arranged along its width direction are opened on the top of the base 1, and a multi-angle reciprocating impact mechanism 3 is slidably connected to the two sliding grooves 2. A pressing mechanism 4 for fixing the waterproof membrane 5 is installed on the top of the base 1, and the pressing mechanism 4 is located between the two sliding grooves 2.

[0035] See Figure 1 、 Figure 3 and Figure 6The multi-angle reciprocating impact mechanism 3 includes a support leg 30 slidably connected to the sliding groove 2, and an arc frame 31 is installed on the top of the two support legs 30. The arc frame 31 is a hollow structure in the middle. The two arc sections of the arc frame 31 are slidably connected to the opposite surfaces of the arc plates 32. A storage box 33 is installed in the middle between the two arc plates 32 through a bracket. The lower end of the storage box 33 is connected to a connecting frame 34 that slides up and down. The lower end of the connecting frame 34 is connected to a plurality of impact assemblies 35 through a conversion drive group 36. Each impact assembly 35 impacts the waterproof membrane 5. The contact areas during impact are different (such as the line contact and point contact impact on the waterproof membrane 5 formed by the roller as shown in the figure, and the surface contact impact on the waterproof membrane 5 by the hinged rectangular bar after the angle conversion. The impact component 35 can be set to a highly adjustable structure to adapt to different detection needs). The conversion drive group 36 drives multiple impact components 35 to convert, so as to perform impact resistance testing on the waterproof membrane 5 through the impact components 35 with different contact areas, simulating the situation when different objects collide with the waterproof membrane 5 during actual use.

[0036] See Figure 3 and Figure 6 The tops of the two arc segments of the arc frame 31 are rotatably connected to a drive shaft 39 through ear plates. The drive shaft 39 is equipped with an angle adjustment drive group 37 that drives the arc plate 32 to drive the storage box 33 to perform multi-angle intermittent reciprocating rotation. A drive connecting frame 34 is installed between the two horizontal sections of the arc frame 31 to drive the impact assembly 35 to perform reciprocating impact on the waterproof membrane 5.

[0037] After the compression mechanism 4 fixes the waterproof membrane 5, the drive shaft 39 is driven to rotate back and forth intermittently through an external drive source (such as a motor). During the rotation, the drive shaft 39 drives the arc plate 32 and the storage box 33 connected to the arc plate 32 to rotate through the angle adjustment drive group 37. The storage box 33 drives the impact assembly 35 to adjust the angle. When the arc plate 32 stops rotating intermittently, the impact drive connection group 38 drives the impact assembly 35 to perform an impact test on the waterproof membrane 5. The impact drive connection group 38 and the angle adjustment drive group 37 are driven alternately and intermittently, thereby performing alternating reciprocating impact tests on the waterproof membrane 5 at different angles, thereby more comprehensively evaluating the impact resistance of the waterproof membrane 5 and improving the comprehensiveness and accuracy of the impact resistance test of the waterproof membrane 5.

[0038] See Figure 4 and Figure 6The conversion drive group 36 includes a conversion shaft 360 rotatably connected to the lower end of the connecting frame 34, and multiple impact assemblies 35 are connected to the side wall of the conversion shaft 360 and are evenly arranged along the circumference of the conversion shaft 360. The conversion shaft 360 is connected to a rotating rod 361 that is concentric with it and slides along its axial direction through a spline fit. One end of the rotating rod 361 passes through the conversion shaft 360 and is connected to the connecting frame 34 through a threaded fit.

[0039] The rotating rod 361 is driven to rotate manually or by an external driving source. During the rotation process, the rotating rod 361 is threadedly engaged with the connecting frame 34 to move along the axial direction of the rotating rod 361. During the rotation process, the rotating rod 361 also drives the conversion shaft 360 to rotate by spline engagement. The conversion shaft 360 drives multiple impact assemblies 35 to be converted, so that the impact resistance test of the waterproof membrane 5 can be carried out later using impact assemblies 35 with different impact contact surfaces.

[0040] See Figure 3 and Figure 6 The angle adjustment drive group 37 includes support rods 370 installed between two arc-shaped plates 32 and arranged symmetrically along their length directions. The two support rods 370 are jointly installed with arc-shaped racks 371 arranged symmetrically along their length directions. The drive shaft 39 is fixedly installed with gears 372 arranged symmetrically along its length direction and meshing with the corresponding arc-shaped racks 371 for transmission.

[0041] The drive shaft 39 drives the gear 372 to rotate. During the rotation process, the gear 372 drives the support rod 370 and the arc plate 32 to rotate through the engagement transmission with the arc rack 371. The arc plate 32 drives the storage box 33 and the impact assembly 35 to change the impact angle to perform reciprocating impact tests on the waterproof membrane 5 at different inclination angles.

[0042] See Figure 3 and Figure 6 The impact drive connection group 38 includes a through groove 380 that is opened on both side walls of the storage box 33 along its length and is connected to its inner cavity. A top plate 381 is installed on the top of the connecting frame 34. The two ends of the top plate 381 arranged along its length pass through the through groove 380 and are connected to the top with balls. A tension spring 382 that is evenly arranged along the length direction of the top plate 381 is installed between the top plate 381 and the inner wall of the storage box 33. A reciprocating lifting component that reciprocally presses down the two ends of the top plate 381 is installed between the two horizontal sections of the arc frame 31. A reciprocating driving source that drives the reciprocating lifting component is installed on the top of the arc frame 31.

[0043] See Figure 4 and Figure 6The reciprocating lifting assembly includes two arc-shaped bars 390, which span above the two ends of the top plate 381. The ball bearings on the top plate 381 are slidably connected to the inner arc surface of the corresponding arc-shaped bar 390 and slide along the inner arc surface of the corresponding arc-shaped bar 390. Each horizontal section of the arc frame 31 is equipped with two symmetrically arranged vertical upright plates 391 through a support plate. A spring groove 392 is provided on the vertical upright plates 391. The end of the arc-shaped bar 390 is connected to the spring groove 392 for up and down sliding, and a push spring 393 is installed between the arc-shaped bar 390 and the spring groove 392. A connecting bar 394 is installed between the ends of the two arc-shaped bars 390, and the connecting bar 394 slides up and down through the vertical upright plates 391.

[0044] The reciprocating drive source drives the arc strip 390 to move upward and squeezes the push spring 393 to contract. The arc strip 390 drives the top plate 381, the connecting frame 34 and the impact assembly 35 to move in the direction away from the waterproof membrane 5. Then the angle adjustment drive group 37 drives the arc plate 32, the storage box 33, the connecting frame 34 and the impact assembly 35 to rotate and change the angle. During the rotation, the top plate 381 moves along the arc track of the arc strip 390 through the ball installed on the top plate 381 until the angle adjustment drive group 37 stops intermittently. After that, the reciprocating drive source no longer pulls the arc strip 390 Under the action of elastic force, the push spring 393 and the tension spring 382 drive the arc strip 390, the connecting frame 34 and the impact assembly 35 to move toward the waterproof membrane 5, thereby impacting the waterproof membrane 5. In summary, the reciprocating pulling assembly cooperates with the impact drive connection group 38 to drive the connecting frame 34 that rotates to a different angle with the waterproof membrane 5 to move, thereby realizing the function of using the same driving source to drive the impact assembly 35 at a different angle to the waterproof membrane 5, thereby improving the convenience of impact resistance testing of the waterproof membrane 5 after the angle of the impact assembly 35 is changed.

[0045] See Figure 1 、 Figure 2 and Figure 6 The reciprocating drive source includes a rotating shaft 301 rotatably connected to the arc frame 31 through an ear seat, and two cams 302 arranged along its axial direction are fixedly sleeved on the rotating shaft 301. Horizontal connecting plates 303 are installed on the opposite back surfaces of the two arc bars 390, and rollers 304 are rotatably connected to the horizontal connecting plates 303 through vertical bars.

[0046] The external driving motor drives the rotating shaft 301 to rotate intermittently, thereby driving the cam 302 to rotate. During the rotation of the cam 302, when its raised part contacts the side wall below the roller 304, the cam 302 drives the horizontal connecting plate 303 and the arc strip 390 to move upward through the roller 304 and squeeze the push spring 393 to contract. When the cam 302 rotates until its raised part disengages from the roller 304, the arc strip 390 drives the connecting frame 34 to move under the elastic force of the push spring 393 and the tension spring 382. The connecting frame 34 drives the corresponding impact assembly 35 to impact the waterproof membrane 5. The reciprocating lifting assembly cooperates with the reciprocating driving source to drive the connecting frame 34 rotated to different angles with the waterproof membrane 5, thereby realizing the function of using the same driving source to drive the impact assembly 35 at different angles to the waterproof membrane 5, thereby improving the convenience of impact resistance testing of the waterproof membrane 5 after the angle of the impact assembly 35 is changed.

[0047] See Figure 1 、 Figure 5 、 Figure 6 and Figure 7 The pressing mechanism 4 includes two L-shaped supports 40 connected to the top of the base 1 and symmetrically arranged along its width direction. The opposite surfaces of the two L-shaped supports 40 are jointly installed with a pressing group 41, and the opposite back surfaces of the two L-shaped supports 40 are installed with a locking group 42. The pressing group 41 presses the waterproof membrane 5 while driving the locking group 42 to lock the corresponding support legs 30. A supporting assembly (not shown in the figure) located between the two L-shaped supports 40 is installed on the top of the base 1. The supporting assembly is used to support the bottom of the waterproof membrane 5, thereby more realistically simulating the stress conditions of the waterproof membrane 5 in actual use.

[0048] In the initial state, the multi-angle reciprocating impact mechanism 3 is not above the L-shaped support 40, so that the waterproof membrane 5 can be placed. After the waterproof membrane 5 is placed, the multi-angle reciprocating impact mechanism 3 is moved above the waterproof membrane 5, and then the waterproof membrane 5 is pressed and fixed by the pressing group 41. At the same time, the pressing group 41 drives the locking group 42 to lock the legs 30 of the multi-angle reciprocating impact mechanism 3, realizing the integrated drive of pressing the waterproof membrane 5 and locking the legs 30, avoiding displacement of the waterproof membrane 5 and the multi-angle reciprocating impact mechanism 3 during the impact test, which affects the accuracy of the impact test.

[0049] See Figure 1 、 Figure 5 、 Figure 6 and Figure 7The pressing group 41 includes guide grooves 410 provided on opposite surfaces of the vertical sections of the two L-shaped supports 40, and a pressure plate 414 that slides up and down is connected to the guide groove 410. An I-shaped groove 411 is provided on the base 1, and an I-shaped frame 412 that slides up and down is connected to the I-shaped groove 411. The lower ends of both sides of the pressure plate 414 arranged along its length direction are installed with connecting rods 413 that pass through the I-shaped groove 411 and are connected to the I-shaped frame 412.

[0050] The waterproof membrane 5 is laid flat on the top of the horizontal sections of the two L-shaped supports 40 and the supporting assembly, with the edge of the waterproof membrane 5 located below the pressure plate 414. The I-shaped frame 412 is then driven downward by the cylinder, and the I-shaped frame 412 drives the pressure plate 414 downward through the connecting rod 413 until the waterproof membrane 5 is pressed and fixed.

[0051] See Figure 6 and Figure 7 The latch group 42 includes slots 420 that are opened on the opposite surfaces of the vertical sections of the two legs 30 and are evenly arranged along their length direction. The vertical section of the L-shaped support 40 is installed with an insertion rod 421 corresponding to the slot 420 on the side close to the leg 30. The insertion rod 421 is installed with a ball bearing after sliding into the guide groove 410. The pressure plate 414 is provided with an oblique groove 422 corresponding to the insertion rod 421 on the side close to the insertion rod 421. An insertion block 423 is installed on the end of the insertion rod 421 away from the L-shaped support 40, and the insertion block 423 is connected to the L-shaped support 40 by a return spring 424.

[0052] In the initial state, the return spring 424 is in a contracted state, and the plug 423 is close to the L-shaped support 40. At this time, the multi-angle reciprocating impact mechanism 3 is not above the L-shaped support 40, so that the waterproof membrane 5 can be placed. After the waterproof membrane 5 is placed, the multi-angle reciprocating impact mechanism 3 is moved above the waterproof membrane 5. Then, when the pressure plate 414 moves downward, the inclined surface of the inclined groove 422 presses against the ball on the insertion rod 421, thereby pushing the insertion rod 421 to drive the plug 423 to move toward the slot 420 until the plug 423 is inserted into the slot 420, thereby realizing the integrated drive of the pressing and fixing of the waterproof membrane 5 and the position locking of the multi-angle reciprocating impact mechanism 3, reducing the driving source.

[0053] See Figure 7 The vertical section of the L-shaped support 40 is installed with a sleeve 430 that is sleeved on the insertion rod 421. The sleeve 430 is used to increase the supporting force of the insertion rod 421.

[0054] See Figure 7The lower end of the pressure plate 414 is equipped with a plurality of pressure strips 440 arranged along its width direction. The use of a plurality of pressure strips 440 can more easily fix the waterproof membrane 5 and reduce the difficulty of operation. In addition, the plurality of pressure strips 440 can also effectively prevent the waterproof membrane 5 from being displaced during the test, thereby ensuring the reliability of the test results.

[0055] During operation, in the initial state, the multi-angle reciprocating impact mechanism 3 is not above the L-shaped support 40, so that the waterproof membrane 5 can be placed. After the waterproof membrane 5 is placed, the multi-angle reciprocating impact mechanism 3 is moved above the waterproof membrane 5, and then the waterproof membrane 5 is pressed and fixed by the pressing group 41. At the same time, the pressing group 41 drives the locking group 42 to lock the legs 30 of the multi-angle reciprocating impact mechanism 3, realizing the integrated drive of pressing the waterproof membrane 5 and locking the legs 30, avoiding displacement of the waterproof membrane 5 and the multi-angle reciprocating impact mechanism 3 during the impact test, which affects the accuracy of the impact test.

[0056] An external drive source drives the drive shaft 39 to rotate back and forth intermittently. During this rotation, the drive shaft 39 drives the curved plate 32 and the storage box 33 connected to the curved plate 32 to rotate via the angle adjustment drive group 37. The storage box 33 drives the impact assembly 35 to adjust the angle. When the curved plate 32 stops rotating intermittently, the impact drive connection group 38 drives the impact assembly 35 to perform an impact test on the waterproof membrane 5. The impact drive connection group 38 and the angle adjustment drive group 37 are alternately driven intermittently, thereby achieving reciprocating impact tests on the waterproof membrane 5 at different angles and contact areas, more comprehensively evaluating the impact resistance of the waterproof membrane 5 and improving the comprehensiveness and accuracy of the impact resistance test. The impact resistance of the waterproof membrane 5 can be determined by observing the depressions on the surface of the waterproof membrane 5.

[0057] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0059] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waterproof membrane impact resistance testing device, characterized in that: include: A base (1) is provided on the top of the base (1), with two sliding grooves (2) symmetrically arranged along the width direction thereof, a multi-angle reciprocating impact mechanism (3) being slidably connected to the two sliding grooves (2), and a pressing mechanism (4) for fixing the waterproof coiled material (5) being installed on the top of the base (1), the pressing mechanism (4) being located between the two sliding grooves (2); The multi-angle reciprocating impact mechanism (3) comprises a support leg (30) slidably connected in the sliding groove (2), an arc frame (31) is commonly installed on the top of the two support legs (30), the arc frame (31) is a hollow structure in the middle, the two arc sections of the arc frame (31) are slidably connected to the opposite surfaces of the arc plate (32), a storage box (33) is installed in the middle between the two arc plates (32) through a bracket, the lower end of the storage box (33) is connected to a connecting frame (34) that slides up and down, and the lower end of the connecting frame (34) is connected to a plurality of impact assemblies (35) through a conversion drive group (36), and the contact area of ​​each impact assembly (35) when impacting the waterproof coiled material (5) is different; The tops of the two arc sections of the arc frame (31) are rotatably connected to a driving shaft (39) through ear plates. The driving shaft (39) is equipped with an angle adjustment driving group (37) for driving the arc plate (32) to drive the storage box (33) to perform multi-angle intermittent reciprocating rotation. A driving connecting frame (34) is installed between the two horizontal sections of the arc frame (31) to drive the impact assembly (35) to perform reciprocating impact on the waterproof coiled material (5). The pressing mechanism (4) comprises two L-shaped supports (40) connected to the top of the base (1) and symmetrically arranged along the width direction thereof; a pressing group (41) is installed on the opposite sides of the two L-shaped supports (40); and a latching group (42) is installed on the opposite back sides of the two L-shaped supports (40); the pressing group (41) presses the waterproof coiled material (5) and drives the latching group (42) to lock the corresponding legs (30) at the same time.

2. The impact resistance testing device for waterproof membrane according to claim 1, characterized in that: The impact drive connection group (38) includes two through grooves (380) arranged on both side walls of the storage box (33) along its length direction and connected to its inner cavity, a top plate (381) is installed on the top of the connecting frame (34), and both ends of the top plate (381) arranged along its length direction pass through the through grooves (380) and are connected to the top by balls, and a retracting spring (382) evenly arranged along the length direction of the top plate (381) is installed between the top plate (381) and the inner wall of the storage box (33), a reciprocating lifting assembly for reciprocatingly pressing down the two ends of the top plate (381) is installed between the two horizontal sections of the arc frame (31), and a reciprocating driving source for driving the reciprocating lifting assembly is installed on the top of the arc frame (31).

3. The impact resistance testing device for waterproof membrane according to claim 1, characterized in that: The conversion drive group (36) includes a conversion shaft (360) rotatably connected to the lower end of the connecting frame (34), a plurality of impact assemblies (35) connected to the side wall of the conversion shaft (360) and evenly arranged along the circumference of the conversion shaft (360), and a rotating rod (361) concentric with the conversion shaft (360) and sliding along the axial direction of the conversion shaft (360) is connected to the conversion shaft (360) by spline fitting, and one end of the rotating rod (361) passes through the conversion shaft (360) and is connected to the connecting frame (34) by thread fitting.

4. The impact resistance testing device for waterproof membrane according to claim 2, characterized in that: The reciprocating lifting assembly includes two arc-shaped bars (390), which span above the two ends of the top plate (381). The ball bearings on the top plate (381) are slidably connected to the inner arc surface of the corresponding arc-shaped bar (390) and slide along the inner arc surface of the corresponding arc-shaped bar (390). Each horizontal section of the arc frame (31) is equipped with two symmetrically arranged vertical upright plates (391) through a support plate. A spring groove (392) is provided on the vertical upright plates (391). The ends of the arc-shaped bars (390) are connected to the spring groove (392) in an up-and-down sliding manner, and a push spring (393) is installed between the arc-shaped bars (390) and the spring groove (392). A connecting bar (394) is installed between the ends of the two arc-shaped bars (390), and the connecting bar (394) slides up and down through the vertical upright plates (391).

5. The impact resistance testing device for waterproof membrane according to claim 1, characterized in that: The angle adjustment drive group (37) includes support rods (370) installed between two arc-shaped plates (32) and arranged symmetrically along the length direction thereof; arc-shaped racks (371) arranged symmetrically along the length direction thereof are installed on the two support rods (370); and gears (372) arranged symmetrically along the length direction thereof and meshing with corresponding arc-shaped racks (371) are fixedly installed on the drive shaft (39).

6. The waterproof membrane impact resistance testing device according to claim 1, characterized in that: The pressing group (41) includes guide grooves (410) provided on opposite surfaces of the vertical sections of the two L-shaped supports (40), a pressing plate (414) that slides up and down is connected to the guide grooves (410), an I-shaped groove (411) is provided on the base (1), an I-shaped frame (412) that slides up and down is connected to the I-shaped groove (411), and connecting rods (413) that penetrate the I-shaped groove (411) and are connected to the I-shaped frame (412) are installed at the lower ends of both sides of the pressing plate (414) arranged along the length direction thereof.

7. The impact resistance testing device for waterproof membrane according to claim 4, characterized in that: The reciprocating drive source comprises a rotating shaft (301) rotatably connected to the arc frame (31) via an ear seat, two cams (302) arranged along its axial direction are fixedly sleeved on the rotating shaft (301), and horizontal connecting plates (303) are installed on the opposite back surfaces of the two arc bars (390), and a roller (304) is rotatably connected to the horizontal connecting plate (303) via a vertical bar.

8. The waterproof membrane impact resistance testing device according to claim 6, characterized in that: The latch group (42) includes slots (420) which are formed on opposite sides of the vertical sections of the two legs (30) and are evenly arranged along the length direction thereof; a plug rod (421) corresponding to the slot (420) is installed on the side of the vertical section of the L-shaped support (40) close to the leg (30); a ball is installed after the plug rod (421) slides into the guide groove (410); an inclined groove (422) corresponding to the plug rod (421) is formed on the side of the pressure plate (414) close to the plug rod (421); an insert block (423) is installed on the end of the plug rod (421) away from the L-shaped support (40); and the insert block (423) and the L-shaped support (40) are connected via a return spring (424).

9. The waterproof membrane impact resistance testing device according to claim 6, characterized in that: The lower end of the pressure plate (414) is provided with a plurality of pressing strips (440) arranged along its width direction.

10. The waterproof membrane impact resistance testing device according to claim 8, characterized in that: The vertical section of the L-shaped support (40) is provided with a sleeve (430) sleeved on the insertion rod (421).

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