Openable protection device of impact testing machine

Abstract

The utility model belongs to the technical field of auxiliary equipment of impact testing machines, and relates to an openable protective device of an impact testing machine, which comprises an impact testing machine detachably mounted on a support base, and a sliding shield slidably mounted on the support base close to one side of a lifting end of the impact testing machine through a lead screw slide rail device. The fixed buffer shield is fixedly mounted on the support base close to one side of the impact end of the impact testing machine, a collection drawer is slidably mounted in the support base, the collection drawer is communicated with the fixed buffer shield, and a striker plate is arranged between the collection drawer and the impact testing machine. The sliding shield is controlled by the lead screw and sliding rail device to be rapidly opened or covered when needed, the fixed buffer shield absorbs impact force generated after a detection sample is broken and prevents fragments of the detection sample from splashing to an operation area, and the detection sample is guided by the fixed buffer shield to enter the collection drawer when the detection sample is unloaded and falls off. And broken detection sample fragments can be collected in a centralized manner, so that subsequent treatment and cleaning are facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for impact testing machines, and in particular to an openable protective device for impact testing machines. Background Technology

[0002] An impact testing machine is a material testing machine that applies impact testing force to test samples. Existing impact testing machines include pendulum impact testing machines and falling weight impact testing machines. Among them, the pendulum impact testing machine uses a pendulum that swings from different initial heights to apply impact force to the test sample. Since the test sample may break during the test, in order to improve the safety of use, existing pendulum impact testing machines are equipped with a semi-open protective net. The part of the test sample that flies out after breaking will move onto the protective net and be blocked from moving, thereby avoiding the problem of the flying test sample injuring the operator.

[0003] However, after the tested sample breaks due to impact, the broken specimen is prone to flying out at high speed along the trajectory of the pendulum swing, and it will bounce off the protective net and splash out of the restricted area, which is not conducive to the safety of the operators. Moreover, the flying specimen is relatively messy and inconvenient to collect and process. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an openable protective device for an impact testing machine.

[0005] The technical solution of this utility model is achieved through the following scheme: an openable protective device for an impact testing machine, including an impact testing machine, a support base, a sliding shield, and a fixed buffer shield. The impact testing machine is detachably installed on the support base. The sliding shield is slidably installed on the support base near the lifting end of the impact testing machine via a screw and rail device. The fixed buffer shield is fixedly installed on the support base near the impact end of the impact testing machine. A collection drawer is slidably installed inside the support base. The collection drawer is connected to the fixed buffer shield. A baffle plate is provided between the collection drawer and the impact testing machine.

[0006] Through the above technical solution, the sliding shield can be quickly opened or closed when needed by the screw and slide rail device, while the fixed buffer shield absorbs the impact force generated after the test sample breaks and prevents test sample fragments from splashing into the operating area. When the test sample is unloaded and falls, it is guided by the fixed buffer shield into the collection drawer, so that the broken test sample fragments can be collected in a concentrated manner for subsequent processing and cleaning. By combining the sliding shield and the fixed buffer shield to form a combined shield, the splashing of test sample fragments is effectively prevented, greatly reducing the risk of injury to operators.

[0007] Preferably, the fixed buffer shield includes a shell, a buffer collection slope and a top reaction plate. The top reaction plate is movably installed at the end of the shell cavity away from the support base. The end of the shell cavity near the support base is connected to a collection drawer through the buffer collection slope. The collection drawer is located between the buffer collection slope and the baffle plate.

[0008] Through the above technical solutions, a multi-layered protective buffer and stress-relief structure is formed by combining the outer shell, the buffer collection slope, and the top reaction plate. When the test sample breaks and splashes during the impact test, the top reaction plate first bears the impact, and then the test sample slides down along the buffer collection slope, effectively reducing the speed and impact force of the test sample. The design of the buffer collection slope not only plays a further buffering role, but also cleverly guides the movement trajectory of the broken test sample, allowing it to slide smoothly into the collection drawer and avoid the scattering and chaos of test sample fragments.

[0009] Preferably, the buffer collection slope includes a collection slope, a first spring buffer, a second spring buffer, and a telescopic baffle. The collection slope is movably mounted on the support base via the first spring buffer, the second spring buffer, and the telescopic baffle. The telescopic baffle is located between the second spring buffer and the collection drawer.

[0010] Through the above technical solution, by combining the collection slope and multiple sets of spring buffers, when the test sample falls on the collection slope, the spring buffers can absorb the impact force. At this time, the collection slope will vibrate with the force of the spring buffers, effectively preventing the sample from staying on the collection slope. Under the combined action of gravity and the curvature of the collection slope, the test sample can smoothly slide into the collection tray, improving the efficiency of sample collection. The telescopic baffle completely isolates the support side from the collection tray, improving the reliability of sample collection.

[0011] Preferably, the end of the top reaction plate away from the buffer aggregate slope is movably installed inside the housing via a bearing roller, and the side of the top reaction plate away from the impact testing machine is connected to the housing via a telescopic rod.

[0012] Preferably, the telescopic end of the telescopic rod is hinged to one side of the top reaction plate.

[0013] Preferably, the outer shell includes several aluminum profile supports, several transparent shields, and a top sealing plate. The several aluminum profile supports are squarely and fixedly installed on the support base. The transparent shields are detachably installed between two aluminum profile supports. The top sealing plate is detachably installed on the top surface of the several aluminum profile supports. The top sealing plate is connected to the top reaction plate through a telescopic rod.

[0014] Preferably, the sliding shield is adapted to the fixed buffer shield, and a rubber buffer plate is installed inside the fixed buffer shield.

[0015] Through the above technical solutions, the top reaction plate is inclinedly hung by the bearing roller and the telescopic rod, and the top reaction plate can move to a certain extent to adapt to different impact angles and reduce the impact of direct impact on the shell and the entire equipment. The hinge allows the top reaction plate to have a certain degree of rotational freedom when it is impacted, reducing the phenomenon of local stress concentration and further enhancing its buffering and stability performance. The aluminum profile support facilitates the replacement of the transparent shield, improving the convenience of maintenance. The aluminum profile support, together with the transparent shield and the top sealing plate, not only provides stable basic support and coverage, but also ensures the overall structural strength of the shell.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. This utility model uses a screw and slide rail device to control the sliding shield to quickly open or close when needed. The fixed buffer shield absorbs the impact force generated after the test sample breaks and prevents test sample fragments from splashing into the operating area. When the test sample falls under the stress, it is guided by the fixed buffer shield into the collection drawer, so that the broken test sample fragments can be collected in a concentrated manner for subsequent processing and cleaning. By combining the sliding shield and the fixed buffer shield to form a combined shield, the splashing of test sample fragments is effectively prevented, greatly reducing the risk of injury to operators.

[0018] 2. Combining the outer shell, buffer aggregate slope, and top reaction plate, a multi-layered protective buffer and stress-relief structure is formed. When the test sample breaks and splashes during the impact test, the top reaction plate first bears the impact, and then the test sample slides down along the buffer aggregate slope, effectively reducing the speed and impact force of the test sample. The design of the buffer aggregate slope not only plays a further buffering role, but also cleverly guides the movement trajectory of the broken test sample, allowing it to slide smoothly into the collection drawer, avoiding the scattering and chaos of test sample fragments.

[0019] 3. Through the cooperation of the collection slope and multiple sets of spring buffers, when the test sample falls on the collection slope, the spring buffers can absorb the impact force. At this time, the collection slope will vibrate with the force of the spring buffers, effectively preventing the sample from staying on the collection slope. Under the combined action of gravity and the curvature of the collection slope, the test sample can smoothly slide into the collection tray, improving the efficiency of sample collection. The telescopic baffle completely isolates the support side from the collection tray, improving the reliability of sample collection.

[0020] 4. The top reaction plate is inclinedly hung by the bearing roller and the telescopic rod, and the top reaction plate can move to a certain extent to adapt to different impact angles and reduce the impact of direct impact on the shell and the whole equipment; the hinge allows the top reaction plate to have a certain degree of rotational freedom when it is impacted, reducing the phenomenon of local stress concentration and further enhancing its buffering and stability performance.

[0021] 5. The transparent shield can be quickly replaced with aluminum profile support, improving maintenance convenience. The aluminum profile support, together with the transparent shield and top sealing plate, not only provides stable basic support and coverage, but also ensures the overall structural strength of the shell. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the sliding shield after it is closed.

[0024] Figure 3 This is a three-dimensional structural diagram of the support base after the sliding shield of this utility model has been disassembled;

[0025] Figure 4 This is a schematic diagram of the assembly cross-sectional structure of the support base of this utility model;

[0026] Figure 5 This is a schematic diagram of the three-dimensional structure of the buffer aggregate slope of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Impact testing machine; 2. Support base; 3. Sliding shield; 4. Fixed buffer shield; 41. Outer shell; 42. Buffer collection slope; 421. Collection slope; 422. First spring buffer; 423. Second spring buffer; 424. Telescopic baffle; 43. Top reaction plate; 5. Screw slide rail device; 6. Collection drawer; 7. Rubber buffer plate; 8. Bearing roller; 9. Telescopic rod; 10. Baffle plate. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification. The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] An openable protective device for an impact testing machine, such as Figures 1-5As shown, the system includes an impact testing machine 1, a support base 2, a sliding shield 3, and a fixed buffer shield 4. The impact testing machine 1 is detachably mounted on the support base 2. The sliding shield 3 is slidably mounted on the support base 2 near the lifting end of the impact testing machine 1 via a screw and rail device 5. The fixed buffer shield 4 is fixedly mounted on the support base 2 near the impact end of the impact testing machine 1. A collection drawer 6 is slidably installed inside the support base 2, and the collection drawer 6 is connected to the fixed buffer shield 4. A baffle plate 10 is provided between the collection drawer 6 and the impact testing machine 1. The impact testing machine 1 is located in the center of the support base 2. The sliding shield 3 is adapted to the fixed buffer shield 4. The sliding shield 3 and the fixed buffer shield 4 cover the impact testing machine 1 to protect the staff. A rubber buffer plate 7 is installed inside the fixed buffer shield 4. The rubber buffer plate 7 is located on the side of the fixed buffer shield 4 facing the impact testing machine 1. The sliding shield 3 is not sealed. The test sample is unloaded by the fixed buffer shield 4 and will not fly out from the sliding shield 3. The rubber material has good elasticity and shock absorption performance, which can effectively absorb the energy generated when the test sample breaks, and reduce the damage of the fragments and impact force to the surrounding environment.

[0031] The support base 2 has two grooves, which are located on both sides of the impact testing machine 1. The screw and slide rail of the screw and slide rail device 5 are installed in the two grooves respectively. The motor drives the screw to open and close the sliding shield 3. The sliding shield 3 is compatible with the fixed buffer shield 4 to ensure that the two fit tightly in the closed state, preventing the test sample fragments from escaping from the gaps. This not only enhances the overall sealing of the protective device, but also improves its safety protection effect in the impact test.

[0032] The fixed buffer shield 4 includes a housing 41, a buffer collection slope 42, and a top reaction plate 43. The top reaction plate 43 is movably installed at the end of the housing 41 away from the support base 2, and the end of the housing 41 near the support base 2 is connected to the collection drawer 6 via the buffer collection slope 42. The collection drawer 6 is located between the buffer collection slope 42 and the baffle plate 10. The overall shape of the housing 41 of the fixed buffer shield 4 is "r" shaped, which can perfectly cover the impact range of the impact testing machine 1. The test sample is unloaded by the fixed buffer shield 4 and falls through the buffer collection slope 42. The material slope 42 is obstructed by the baffle plate 10 between the collection drawer 6 and the impact testing machine 1, allowing the test sample to enter the collection drawer 6. The collection drawer 6 can be pulled out and installed in the support base 2. The support base 2 has a through groove, and the buffer material slope 42 overlaps on one side of the through groove, so that the buffer material slope 42 can guide the test sample into the collection groove. The baffle plate 10 is located on the other side of the through groove to obstruct it. The size of the buffer material slope 42 is adapted to the size of the inner cavity of the outer shell 41. After the test sample is unloaded by the rubber buffer plate 7 and the top reaction plate 43, it will fall onto the surface of the buffer material slope 42.

[0033] The end of the top reaction plate 43 away from the buffer collection slope 42 is movably installed inside the outer shell 41 via the bearing roller 8. The side of the top reaction plate 43 away from the impact testing machine 1 is connected to the outer shell 41 via the telescopic rod 9. One end of the top reaction plate 43 is suspended in the inner cavity of the outer shell 41 by the bearing roller, and the other end is suspended on the inner cavity of the outer shell 41 via the telescopic rod 9. The top reaction plate 43 is inclined at the end of the inner cavity of the outer shell 41, and the movable end of the top reaction plate 43 is designed to be non-contact with the inner cavity of the outer shell 41. When the test sample breaks and is impacted, the top reaction plate 43 moves under force and then rebounds due to gravity, causing the test sample to be unloaded. If the test sample splashes through the gap between the top reaction plate 43 and the inner cavity of the outer shell 41, it enters the upper side of the top reaction plate 43. Because the top reaction plate 43 is inclined, the test sample will subsequently slide out and enter the buffer collection slope 42 below the top reaction plate 43 for guidance and collection.

[0034] The outer shell 41 includes several aluminum profile supports, several transparent shields, and a top sealing plate. The aluminum profile supports are squarely and fixedly installed on the support base 2. The transparent shields are detachably installed between two aluminum profile supports. The top sealing plate is detachably installed on the top surface of the aluminum profile supports. The top sealing plate is connected to the top reaction plate 43 via a telescopic rod 9. Preferably, the aluminum profile supports consist of four long aluminum profiles and two 45° inclined aluminum profiles. The four long aluminum profiles form a structure that can accommodate the top reaction plate 43 and the buffer aggregate slope 4. The square-shaped section 2 has two 45° inclined aluminum profiles screwed to a long aluminum profile near the impact testing machine 1. Bearing rollers 8 are fixedly installed in the opposite grooves of the two 45° inclined aluminum profiles, providing end support for the top reaction plate 43. Aluminum profile auxiliary fixing seats are screwed into the angle formed by the 45° inclined aluminum profiles and the long aluminum profiles, making it more stable. Multiple transparent shields are retractable, and together with the four long aluminum profiles and the top sealing plate, they form a covering state for the impact testing machine 1, covering the impact test... The impact working area of ​​the impact testing machine 1 allows test samples to fly into it when they break. A transparent shield facing the impact testing machine 1 is equipped with a rubber buffer plate 7. The top sealing plate is made of aluminum alloy support plate, which provides stable support for the top reaction plate 43. The transparent shield can be easily removed and replaced by simply removing the top sealing plate, which improves the convenience of maintenance. The transparent shield is set in layers. The inner layer is made of protective mesh structure and the outer layer is made of transparent tempered glass material. The inner protective mesh can block the impact of the impact hammer and effectively prevent impact damage to the outer tempered glass. The outer tempered glass blocks the flying debris and prevents injury to the human body. The double-layer design can effectively improve the safety performance. When the sliding shield 3 is closed, it can be perfectly matched with the slots of the long aluminum profile and the 45° inclined aluminum profile, completely covering the impact testing machine 1. The sliding shield 3 is made of transparent tempered glass. The other unused slots of the aluminum profile are sealed with rubber to improve durability and effectively prevent test samples from flying into the slots of the aluminum profile after they break.

[0035] The telescopic end of the telescopic rod 9 is hinged to one side of the top reaction plate 43. The hinged connection allows the telescopic end of the telescopic rod 9 to adapt to the angle and position of the top reaction plate 43 moving up and down without generating additional stress that would hinder the movement.

[0036] The buffer collection slope 42 includes a collection slope 421, a first spring buffer 422, a second spring buffer 423, and a telescopic baffle 424. The collection slope 421 is movably mounted on the support base 2 via the first spring buffer 422, the second spring buffer 423, and the telescopic baffle. The telescopic baffle is located between the second spring buffer 423 and the collection drawer 6. The collection slope 421 is arc-shaped, with one end abutting against the inner cavity of the outer shell 41, and the other end connecting to the collection drawer 6 and having a chamfer. It has a certain gap with the collection drawer 6 and is not overlapped. The end of the collection slope 421 that abuts against the inner cavity of the outer shell 41 is supported by the first spring buffer. The punch 422 provides support, and one end of the receiving tray 6 is supported by the second spring buffer 423. The collecting slope 421 will sink and vibrate under the weight of the test sample, so that the test sample cannot stay on the collecting slope 421. Under the influence of the curvature and gravity, it enters the collecting tray 6. Its telescopic baffle can effectively prevent the test sample from entering the supporting side of the collecting slope 421, so that the supporting side is isolated from the collecting tray 6. The telescopic baffle is close to the collecting tray 6 to ensure that the falling test sample is collected by the collecting tray 6. After multiple tests, the collecting tray 6 can be pulled out for centralized processing. The concave arc of the collecting slope 421 faces the impact testing machine 1 to facilitate material guidance.

[0037] Working principle: The operator adjusts the impact testing machine 1 to position the impact hammer and places the test sample in. The screw slide rail device 5 is activated to move the sliding shield 3, which in turn covers the impact testing machine 1 with the fixed buffer shield 4. At this time, the operator starts the impact hammer to make it fall quickly. The test sample is impacted and breaks, splashing into the fixed buffer shield 4. The test sample is unloaded by the top reaction plate 43 and the rubber buffer plate 7, causing it to fall to the buffer collection slope 42 and be guided by the buffer collection slope 42 into the collection drawer 6 for collection.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An openable protective device for an impact testing machine, characterized in that: The device includes an impact testing machine (1), a support base (2), a sliding shield (3), and a fixed buffer shield (4). The impact testing machine (1) is detachably mounted on the support base (2). The sliding shield (3) is slidably mounted on the support base (2) near the lifting end of the impact testing machine (1) via a screw slide rail device (5). The fixed buffer shield (4) is fixedly mounted on the support base (2) near the impact end of the impact testing machine (1). A collection drawer (6) is slidably mounted inside the support base (2). The collection drawer (6) is connected to the fixed buffer shield (4). A baffle plate (10) is provided between the collection drawer (6) and the impact testing machine (1).

2. The openable protective device for an impact testing machine according to claim 1, characterized in that: The fixed buffer shield (4) includes a shell (41), a buffer collection slope (42) and a top reaction plate (43). The top reaction plate (43) is movably installed at the end of the inner cavity of the shell (41) away from the support base (2). The end of the inner cavity of the shell (41) near the support base (2) is connected to the collection drawer (6) through the buffer collection slope (42). The collection drawer (6) is located between the buffer collection slope (42) and the baffle plate (10).

3. The openable protective device for an impact testing machine according to claim 2, characterized in that: The buffer collection slope (42) includes a collection slope (421), a first spring buffer (422), a second spring buffer (423), and a telescopic baffle (424). The collection slope (421) is movably installed on the support base (2) through the first spring buffer (422), the second spring buffer (423), and the telescopic baffle. The telescopic baffle is located between the second spring buffer (423) and the collection drawer (6).

4. The openable protective device for an impact testing machine according to claim 2, characterized in that: The end of the top reaction plate (43) away from the buffer aggregate slope (42) is movably installed inside the outer shell (41) via the bearing roller (8). The side of the top reaction plate (43) away from the impact testing machine (1) is connected to the outer shell (41) via the telescopic rod (9).

5. The openable protective device for an impact testing machine according to claim 4, characterized in that: The telescopic end of the telescopic rod (9) is hinged to one side of the top reaction plate (43).

6. The openable protective device for an impact testing machine according to claim 4, characterized in that: The outer shell (41) includes several aluminum profile supports, several transparent shields and a top sealing plate. Several aluminum profile supports are square and fixedly installed on the support base (2). The transparent shields are detachably installed between two aluminum profile supports. The top sealing plate is detachably installed on the top surface of several aluminum profile supports. The top sealing plate is connected to the top reaction plate (43) through a telescopic rod (9).

7. The openable protective device for an impact testing machine according to claim 1, characterized in that: The sliding shield (3) is adapted to the fixed buffer shield (4), and a rubber buffer plate (7) is installed inside the fixed buffer shield (4).

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