SPC floor shock resistance detection device

Abstract

The invention discloses an SPC floor shock resistance detection device, and belongs to the field of SPC floor testing. The SPC floor shock resistance detection device comprises a shell, a mounting disc is arranged in the middle of the shell, and a mounting base in sliding connection is arranged around the mounting disc in a surrounding mode. The SPC floor free fall impact resistance detection device solves the problem that in the detection process of an existing SPC floor free fall impact resistance detection device, an impact hammer which makes contact with an SPC floor and is used for detection needs to be replaced frequently due to different detection requirements, and the efficiency is reduced in the replacement process due to frequent manual replacement. The impact hammer heads with different shapes are connected to the ends, distributed in a surrounding mode, of the mounting base in advance, the impact hammer heads needing to fall subsequently can vertically face the lower end, and after the mounting base is rotated and the impact hammer heads are adjusted, an insertion block can be embedded into the mounting base vertically facing the lower end through extension of a third telescopic rod; the mounting base may be released from outside the mounting disk.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of SPC floor testing, in particular to a SPC floor impact resistance detection device. BACKGROUND

[0002] The SPC floor impact resistance detection device is a test equipment specially used for evaluating the impact resistance performance of SPC floor. It simulates the impact scenarios that may be encountered in actual use, applies impact of specific force and mode to the floor sample, and observes and records the damage to the floor surface, so as to quantify the impact resistance of the floor. The device can provide scientific basis for floor quality detection, product research and development and standard formulation, and ensure that the product meets the durability requirements. Chinese patent CN116429603B discloses a SPC floor free-fall impact resistance detection device and method, which comprises a base, a movable table horizontally installed on the base, a hydraulic cylinder fixedly connected to the top surface of the base, a telescopic end at the top of the hydraulic cylinder, a support frame fixedly connected to the top of the telescopic end, and an initial velocity mechanism fixedly installed at the top of the support frame. The invention solves the problems of complicated adjustment process, long time consumption, increased test cost and time cost, and multiple impacts on the impact point caused by the rebound of the metal ball after impacting the SPC floor, which affects the detection data.

[0003] In the detection process of the above-mentioned patent SPC floor free-fall impact resistance detection device, the impact hammer head used for detecting the SPC floor needs to be frequently replaced due to different detection requirements. Frequent manual replacement reduces the efficiency during replacement and affects the detection efficiency. SUMMARY

[0004] The present application aims to provide a SPC floor impact resistance detection device, which is pre-connected with impact hammer heads of different shapes around one end of the mounting base. The impact hammer heads that need to be dropped later can be vertically oriented towards the lower end. After rotating the mounting base and adjusting the impact hammer head, the extension of the third telescopic rod can make the plug block embedded in the interior of the mounting base vertically oriented towards the lower end. The mounting base can be released from the outside of the mounting disc. The subsequently inserted mounting base can be directly moved vertically downward along the sliding groove by its own weight. Thus, the corresponding impact hammer head can be directly used after being selected. The required impact hammer head is pre-installed around the outside of the mounting disc after being connected to the outside of the mounting base, which facilitates direct connection and use during use, improves the detection efficiency, and solves the problems raised in the above background.

[0005] In order to achieve the above object, the present application provides the following technical scheme: A kind of SPC floor impact resistance detection device, including shell, the middle of the shell is provided with mounting disc, the mounting disc is provided with the slidingly connected mounting base around, one end of the mounting base is provided with first pressure sensor, one end of the first pressure sensor is provided with impact hammer head, the mounting disc is recessed towards mounting base and is provided with receiving groove, the mounting base is provided with through hole corresponding receiving groove, one end of the mounting base is provided with the plug-in block that can be inserted into mounting base, one end of the plug-in block is provided with third telescopic rod, the second support is provided outside the third telescopic rod, the upper end in the shell is provided with receiving cylinder, the receiving cylinder is wound with the connecting rope that is fixedly connected with second support and receiving cylinder at both ends, connecting rope wound outside receiving cylinder can be convenient for first pressure sensor to be recycled after release, by pulling connecting rope, the mounting base after testing can be reset, can pull mounting base and make mounting base fixed to the mounting disc around.

[0006] Preferably, the upper end of the receiving cylinder is provided with a support roller rotatably connected with the shell, which can support the connecting rope. The support roller can rotate and offset the friction generated during pulling.

[0007] Preferably, the inside of the mounting base is provided with a fixed ring, the inside of the fixed ring is provided with a support column slidably penetrating and fixedly connected with the mounting disc, the center of one end of the mounting disc is provided with a first telescopic rod, one end of the first telescopic rod is provided with an alternating current asynchronous motor. The support column can fix the rotating mounting disc and the mounting base with adjusted angle.

[0008] Preferably, one end of the mounting disc is provided with a first support, the inside of the first support is provided with a second pin sliding transversely, the rear end inside the shell is provided with a fixed plate vertically, the inside of the fixed plate is provided with a mounting hole vertically and longitudinally distributed corresponding to the second pin, one end of the second pin away from the mounting hole is provided with a second telescopic rod. After adjusting the height of the mounting disc, the second pin can move towards the mounting hole after being pushed, and can be fixed after being inserted into the inside of the mounting hole.

[0009] Preferably, one side of the second support is provided with a speed sensor, the other side of the second support is provided with a first distance sensor. The speed sensor can detect the falling speed of the mounting base during testing, and the first distance sensor can detect the height of the mounting base during testing.

[0010] Preferably, the second support is internally provided with a second distance sensor towards the lower end, which can facilitate the longitudinal movement of the second support and approach the mounting base at the lowermost end, and facilitate the approach of the second support to the mounting base and help the subsequent stable insertion into the through hole inside the mounting base.

[0011] Preferably, one end of the receiving groove is provided with a first bolt towards the through hole, and the inside of the receiving groove is transversely provided with a fourth telescopic rod, the extension of which can transversely push the first bolt, and the transverse movement of the first bolt can fix the suspended mounting base, facilitating the fixation of the mounting base to the outer wall of the mounting disc.

[0012] Preferably, the inside of the first support and the second support is rotatably provided with a rotatable first roller, the inside of the shell is recessed to provide two vertically distributed sliding grooves, and the inside of the first support and the second support is respectively embedded in the sliding groove corresponding to the first roller, the rotation of the first roller in the sliding groove can stably move the second support and the first support, stably adjust the horizontal height of the mounting disc, and stably perform subsequent SPC floor detection.

[0013] Preferably, the inside of the second support is provided with a second roller between the two first rollers, and the second roller is rotatably connected to the inside of the second support, the outer wall of the second roller is attached to the shell, and the rotation of the second roller on the side of the second support can facilitate the longitudinal movement of the second support, and the second roller on the side of the second support can assist the first pressure sensor and the impact hammer head to stably perform longitudinal impact, and facilitate the retraction of the impact hammer head outside the mounting disc.

[0014] Compared with the prior art, the present application has the following advantages: After the SPC floor is dropped and clamped and fixed by the second contact sheet and the fixed frame, the mounting disc is pushed by the first telescopic rod, and then driven and rotated by the corresponding asynchronous motor, the start of the asynchronous motor can directly adjust the installation base distributed around, and one end of the installation base distributed around is pre-connected with impact hammers of different shapes, so that the impact hammer needed to be dropped subsequently can be vertically directed towards the lower end, and the subsequent detection requirement can be directly completed by rotation, after rotating the installation base and adjusting the impact hammer, the extension of the third telescopic rod can make the plug block embedded in the inside of the installation base vertically directed towards the lower end, the installation base can be released from the outside of the mounting disc, and the subsequently inserted installation base can be directly longitudinally moved downwards along the sliding groove by its own weight, so that the corresponding impact hammer can be directly used after being selected, and the impact hammer connected to the outside of the installation base is pre-installed around the outside of the mounting disc during detection, which facilitates direct connection and use during use, and improves the detection efficiency.

[0015] The SPC floor to be detected is directly placed in the fixed frame and clamped by the first contact sheet, the clamped SPC floor is rotated on the upper end of the shell, the SPC floor can be directly placed on the upper end of the tray, the subsequent movement of the side surface of the SPC floor can be completed through the relative movement of the second contact sheets on the two sides, the installation and fixation of the SPC floor are convenient, the installation and fixation are efficient and convenient, and the subsequent efficient detection of the SPC floor can be adapted to. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall external structure diagram of the application; Figure 2 It is an internal structure sectional view of the shell of the application; Figure 3 It is a sliding groove transmission structure schematic diagram of the application; Figure 4 It is a Figure 3 A local enlarged view of the A area in the application; Figure 5 It is an internal structure sectional view of the storage groove of the application; Figure 6 It is a Figure 5 A local enlarged view of the B area in the application; Figure 7 It is a second bolt transmission structure sectional view of the application; Figure 8 It is a speed sensor position relationship front view of the application; Figure 9 It is a fixed frame rotation track schematic diagram of the application; Figure 10 It is a Figure 9 A local enlarged view of the C area in the application; Figure 11 It is a gear transmission structure schematic diagram of the application.

[0017] In the figure: 1, the shell; 2, the fixed frame; 3, the first contact piece; 4, the threaded rod; 6, the tray; 7, the second contact piece; 8, the fixed plate; 9, the mounting hole; 10, the mounting disc; 11, the mounting base; 12, the first pressure sensor; 13, the storage cylinder; 14, the supporting roller; 15, the first support; 16, the second support; 17, the plug; 18, the first distance sensor; 19, the first roller; 20, the second roller; 21, the alternating current asynchronous motor; 22, the first telescopic rod; 23, the fixed ring; 24, the supporting column; 25, the first bolt; 27, the second bolt; 28, the second telescopic rod; 29, the speed sensor; 30, the connecting rope; 31, the sliding groove; 32, the second distance sensor; 33, the storage groove; 34, the second pressure sensor; 35, the third pressure sensor; 36, the gear; 37, the transmission rod; 38, the third telescopic rod; 39, the fourth pressure sensor; 40, the fourth telescopic rod. DETAILED DESCRIPTION

[0018] The application will be further described below in combination with specific examples.

[0019] As shown in Figure 1 and Figure 2 , the impact detection device for SPC floor of the embodiment comprises a shell 1, the lower end of the shell 1 is provided with a fixed frame 2, the inside of the fixed frame 2 is provided transversely with a first contact piece 3, the upper end of the first contact piece 3 is provided vertically with a threaded rod 4, and the threaded rod 4 penetrates and extends to the upper and lower ends of the fixed frame 2, the outside of the threaded rod 4 is threadedly matched with the penetration position of the fixed frame 2, and the threaded rod 4 is rotationally connected with the first contact piece 3, so that the horizontal height of the first contact piece 3 can be adjusted longitudinally through the rotational connection and the thread matching, and the clamping of the SPC floor can be completed.

[0020] The two sides of the fixed frame 2 are provided with second contact pieces 7, the two second contact pieces 7 are provided with transmission rods 37 towards the middle position of the fixed frame 2, and the transmission rods 37 are welded and fixed with the second contact pieces 7, as shown in Figure 9 、 Figure 10 and Figure 11 , the two transmission rods 37 are provided with a gear 36, and the outside of the gear 36 is meshingly connected with the outside of the transmission rod 37, so that the position of the second contact piece 7 can be adjusted laterally relative through the rotation of the gear 36, and the clamping of the side surface of the SPC floor can be completed, and the clamping of multiple positions can improve the accuracy of the subsequent detection of the SPC floor, and the lower end between the two second contact pieces 7 is provided with a tray 6.

[0021] In order to facilitate efficient installation and fixation of the SPC floor, the fixed frame 2 is rotatably connected with the lower end of the shell 1, one end of the fixed frame 2 rotatably connected with the shell 1 is provided with a servo motor, the servo motor can drive the fixed frame 2 to rotate, the lower end of the first contact sheet 3 is provided with a second pressure sensor 34, and the second pressure sensor 34 is electrically connected with the servo motor, after the second pressure sensor 34 contacts the SPC floor and is pressed to the SPC floor, the servo motor can directly drive the SPC floor to overturn, and the installation of the SPC floor is completed after overturning.

[0022] Further, the upper end of the tray 6 is provided with a third pressure sensor 35, one side of the second contact sheet 7 facing the third pressure sensor 35 is provided with a fourth pressure sensor 39, the lower end of the gear 36 is provided with a servo motor, and the fourth pressure sensor 39 and the third pressure sensor 35 are both electrically connected with the servo motor, after the third pressure sensor 35 contacts the overturned SPC floor, the third pressure sensor 35 can give a start signal to the third pressure sensor 35 corresponding to the servo motor, so as to start the gear 36 to complete the clamping of the side of the SPC floor, and after the side of the SPC floor is pressed to the fourth pressure sensor 39, the fourth pressure sensor 39 gives a stop signal to the third pressure sensor 35 corresponding to the servo motor, so as to complete the clamping, overturning and fixation of the SPC floor.

[0023] In order to adapt to the detection needs of the SPC floor, as shown in Figure 3 , Figure 5 and Figure 8 , the middle of the shell 1 is provided with a mounting disc 10, the mounting disc 10 is provided with a mounting base 11 around, one end of the mounting base 11 is provided with a first pressure sensor 12, one end of the first pressure sensor 12 is provided with an impact hammer head, and the outside of the mounting base 11 is slidingly connected with the outside of the mounting disc 10, the mounting base 11 at the lowermost end of the mounting disc 10 can drive the impact hammer head to move vertically towards the SPC floor, complete the impact on the SPC floor and complete the detection.

[0024] Further, in order to avoid the mounting base 11 from falling off outside the mounting disc 10 during rotation, the mounting disc 10 is recessed towards the mounting base 11 and provided with a receiving groove 33, the mounting base 11 is provided with a through hole corresponding to the receiving groove 33, as shown in Figure 6 , one end of the receiving groove 33 is provided with a first latch 25 towards the through hole, the inside of the receiving groove 33 is transversely provided with a fourth telescopic rod 40, and the fourth telescopic rod 40 is fixedly connected with the first latch 25 through a bolt, the extension of the fourth telescopic rod 40 can push the first latch 25 and make the first latch 25 embedded in the inside of the through hole, so as to complete the fixation of the mounting base 11 and avoid the mounting base 11 from falling off, and the contraction of the fourth telescopic rod 40 can facilitate the mounting base 11 to directly fall down for impact resistance detection of the SPC floor.

[0025] In order to facilitate the connection of the installation base 11 which needs to be dropped later, facilitate the recycling of the installation base 11 after detection, one end of the installation base 11 is provided with a plug 17 which can be inserted into the through hole inside the installation base 11, replacing the first bolt 25 to connect the installation base 11, one end of the plug 17 is provided with a third telescopic rod 38, the outside of the third telescopic rod 38 is provided with a second support 16, and the plug 17 is slidingly embedded in the inside of the second support 16, and the plug 17 can be moved horizontally by the extension of the third telescopic rod 38.

[0026] One end of the installation disc 10 is provided with a first support 15, as shown in Figure 4 The inside of the first support 15 and the second support 16 is provided with a rotatable first roller 19, and the first roller 19 is rotatably connected with the inside of the first support 15 and the second support 16 respectively, and the inside of the shell 1 is recessed to provide two vertically distributed sliding grooves 31, and the inside of the first support 15 and the second support 16 corresponding to the first roller 19 is embedded in the inside of the sliding groove 31 respectively, and the recessed sliding groove 31 can provide a stable moving track.

[0027] In order to facilitate the stability of the second support 16 when moving longitudinally, the second support 16 is provided with a second roller 20 between the two first rollers 19, and the second roller 20 is rotatably connected with the inside of the second support 16, and the outer wall of the second roller 20 is attached to the shell 1, and in the process of longitudinal movement of the second support 16, the second support 16 moves stably longitudinally through the rotation of the second roller 20 and the first roller 19, which facilitates the impact resistance detection of the SPC floor, and the inside of the second support 16 is provided with a motor connected with the second roller 20, and the output of the motor to the second roller 20 can actively drive the second support 16 to adjust the longitudinal horizontal position.

[0028] In order to pull the second support 16, the upper end of the inside of the shell 1 is provided with a receiving cylinder 13, one end of the receiving cylinder 13 is provided with a motor, the inside of the receiving cylinder 13 is wound with a connecting rope 30, and the two ends of the connecting rope 30 are fixedly connected with the second support 16 and the receiving cylinder 13 respectively, the receiving cylinder 13 can pull the second support 16 by the connecting rope 30 through the driving of the motor, and the second support 16 can be pulled and moved longitudinally upward, which can realize the recycling of the installation base 11 after release and detection.

[0029] In order to facilitate the recycling and release of the connecting rope 30, the upper end of the receiving cylinder 13 is provided with a supporting roller 14, and the supporting roller 14 is rotatably connected with the shell 1, and in the process of transmission of the connecting rope 30, the rotation of the supporting roller 14 can reduce the friction between the connecting rope 30 and the shell 1, which can improve the stability of the longitudinal movement of the impact hammer head.

[0030] In order to lock the installation base 11 after rotation adjustment, a fixed ring 23 is arranged around the inside of the installation base 11, a support column 24 is slidingly arranged in the inside of the fixed ring 23, one end of the support column 24 is fixedly connected with the installation disc 10, a first telescopic rod 22 is arranged at the center of one end of the installation disc 10, the installation disc 10 can be pushed by the extension of the first telescopic rod 22, so that the support column 24 slides out of the fixed ring 23, and the installation disc 10 can be rotated and the angle can be adjusted by the extension of the first telescopic rod 22.

[0031] Further, an alternating current asynchronous motor 21 is arranged at one end of the first telescopic rod 22, and an output shaft of the alternating current asynchronous motor 21 is fixedly connected with one end of the first telescopic rod 22, after the extension of the first telescopic rod 22, the start of the alternating current asynchronous motor 21 can directly drive the reserved installation base 11 to rotate, the impact hammer head connected with the first pressure sensor 12 outside the installation base 11 can be vertically directed to the SPC floor fixed at the lower end.

[0032] In order to facilitate the fixation of the installation disc 10 at a corresponding height, a motor is arranged at one end of the first roller 19, the height of the installation disc 10 can be adjusted by the driving of the motor on the first roller 19, the falling height of the impact hammer head can be directly adjusted, and different test requirements can be adapted.

[0033] In the embodiment, as shown in Figure 7 the inside of the first support 15 is transversely slidingly arranged with a second bolt 27, the rear end of the shell 1 is vertically arranged with a fixed plate 8, the inside of the fixed plate 8 is vertically and longitudinally distributed with a mounting hole 9 corresponding to the second bolt 27, the mounting hole 9 is connected with the external clamping groove of the second bolt 27, one end of the second bolt 27 away from the mounting hole 9 is arranged with a second telescopic rod 28, and the second telescopic rod 28 and the second bolt 27 are fixedly connected by bolts, after the longitudinal position adjustment of the first roller 19, the contraction of the second telescopic rod 28 can adjust the insertion of the second bolt 27 into the inside of the mounting hole 9, and the clamping groove connection of the mounting hole 9 and the second bolt 27 can fix the height of the installation disc 10.

[0034] In order to adapt to the impact resistance detection of the SPC floor, a speed sensor 29 is arranged on one side of the second support 16, and a first distance sensor 18 is arranged on the other side of the second support 16, when the second support 16 drives the installation base 11 to move longitudinally and horizontally for detection, the first distance sensor 18 and the speed sensor 29 can detect the height and distance during detection, and the first pressure sensor 12 can detect the pressure generated during collision.

[0035] Further, in order to improve the stability of the connection between the second support 16 and the mounting base 11, a second distance sensor 32 is arranged inside the second support 16 towards the lower end, and when the second support 16 is close to the mounting base 11 and connected, the distance between the second support 16 and the mounting base 11 is detected by the second distance sensor 32, which can facilitate the insertion of the block 17 into the through hole position inside the mounting base 11.

[0036] Working principle: in the use of the device and impact resistance detection of SPC floor, SPC floor is placed in the fixed frame 2, rotate the threaded rod 4 and push the first contact piece 3, the first contact piece 3 contact SPC floor and complete clamping and fixing, the second pressure sensor 34 detects the pressure, the clamped SPC floor is rotated by motor drive and turns to the tray 6, turns and makes SPC floor contact tray 6 and extrude the third pressure sensor 35, the third pressure sensor 35 gives a start signal to the gear 36, the rotation of the gear 36 is driven by the second contact piece 7 through the transmission rod 37, the two second contact pieces 7 move relatively to complete the clamping of the side of SPC floor, the fourth pressure sensor 39 is contacted by the second contact piece 7, the corresponding motor of the gear 36 is stopped, first, the horizontal height of the mounting disc 10 is adjusted longitudinally, the second pin 27 is taken out from the mounting hole 9 after the second extension rod 28 is retracted, at the same time, the first roller 19 in the first support 15 is rotated by motor drive, the mounting disc 10 is driven to adjust the height of the horizontal position longitudinally, after adjusting the corresponding height, the second pin 27 is inserted into the corresponding height of the mounting hole 9 after the second extension rod 28 is elongated, the first extension rod 22 is elongated to make the mounting disc 10 move laterally and make the support column 24 slide out of the mounting disc 10, the mounting disc 10 is rotated by starting the alternating current asynchronous motor 21, the rotation of the mounting disc 10 directly adjusts the external mounting base 11, the rotation of the mounting base 11 directly adjusts the position of the different impact hammer heads connected outside to adjust the position, so that the corresponding impact hammer head is vertically oriented to the lowermost end, the second support 16 is longitudinally moved downward by the rotation of the first roller 19 and the second roller 20 in the second support 16 after being driven by the motor, the third extension rod 38 can push the plug 17 after the second distance sensor 32 detects that the distance between itself and the lowermost mounting base 11 reaches the set value, the first plug 25 is retracted by the contraction of the fourth extension rod 40, the elongated plug 17 is inserted into the mounting base 11, the second roller 20 is stopped by the corresponding motor, so that the second roller 20 can rotate freely, the mounting base 11 can drive the impact hammer head to move longitudinally downward along the sliding groove 31 after being limited by the sliding groove 31, the height of the mounting base 11 and the height of the mounting base 11 itself can complete the corresponding demand of SPC floor detection, and the first distance sensor 18, the speed sensor 29 and the first pressure sensor 12 complete the corresponding value detection in the detection process.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. An impact resistance testing device for SPC flooring, comprising a housing (1), characterized in that, A mounting plate (10) is provided in the middle of the outer shell (1). A mounting base (11) with sliding connection is provided around the mounting plate (10). A first pressure sensor (12) is provided at one end of the mounting base (11). An impact hammer is provided at one end of the first pressure sensor (12). A storage groove (33) is provided in the mounting plate (10) facing the mounting base (11). A through hole is provided through the mounting base (11) corresponding to the storage groove (33). A plug (17) is provided at one end of the mounting base (11) that can be inserted into the mounting base (11). A third telescopic rod (38) is provided at one end of the plug (17). A second bracket (16) is provided outside the third telescopic rod (38). A storage tube (13) is provided at the upper end inside the outer shell (1). A connecting rope (30) is wound around the storage tube (13) with its two ends fixedly connected to the second bracket (16) and the storage tube (13) respectively.

2. The SPC floor impact resistance testing device according to claim 1, characterized in that, The upper end of the storage tube (13) is provided with a support roller (14) that is rotatably connected to the outer shell (1).

3. The SPC floor impact resistance testing device according to claim 2, characterized in that, The mounting base (11) is surrounded by a fixing ring (23), and a support column (24) that is fixedly connected to the mounting plate (10) is slidably passed through the fixing ring (23). A first telescopic rod (22) is provided at the center of one end of the mounting plate (10), and an AC asynchronous motor (21) is provided at one end of the first telescopic rod (22).

4. The SPC floor impact resistance testing device according to claim 3, characterized in that, One end of the mounting plate (10) is provided with a first bracket (15), and a second pin (27) is slidably provided inside the first bracket (15). A fixing plate (8) is vertically provided at the rear end inside the outer shell (1). The fixing plate (8) has mounting holes (9) that are vertically distributed inside the fixing plate (8) corresponding to the second pin (27) and connected to the slot of the second pin (27). A second telescopic rod (28) is provided at the end of the second pin (27) away from the mounting hole (9).

5. The SPC floor impact resistance testing device according to claim 4, characterized in that, A speed sensor (29) is provided on one side of the second bracket (16), and a first distance sensor (18) is provided on the other side of the second bracket (16).

6. The SPC floor impact resistance testing device according to claim 5, characterized in that, The second bracket (16) has a second distance sensor (32) installed inside facing downward.

7. The SPC floor impact resistance testing device according to claim 6, characterized in that, One end of the storage slot (33) is provided with a first pin (25) facing the through hole, and a fourth telescopic rod (40) is provided laterally inside the storage slot (33).

8. The SPC floor impact resistance testing device according to claim 7, characterized in that, The first bracket (15) and the second bracket (16) are each provided with a rotatable first roller (19). The outer shell (1) is recessed with two vertically distributed sliding grooves (31). The first bracket (15) and the second bracket (16) are respectively embedded in the sliding grooves (31) corresponding to the first roller (19).

9. The SPC floor impact resistance testing device according to claim 8, characterized in that, The second bracket (16) has a second roller (20) disposed between the two first rollers (19) inside, and the second roller (20) is rotatably connected to the inside of the second bracket (16). The outer wall of the second roller (20) is in contact with the outer shell (1).

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