Fixing structure for safety helmet impact resistance puncture tester

Abstract

The utility model discloses a fixing structure for a safety helmet impact resistance puncture tester, and relates to the technical field of safety helmet testing. The impact-resistant puncture tester comprises an impact-resistant puncture tester body, an adjusting mechanism and a fixing mechanism are arranged on the impact-resistant puncture tester body, the adjusting mechanism comprises a protective fence installed on the inner bottom wall of the impact-resistant puncture tester body, and two adjusting seats are installed on the inner bottom wall of the protective fence. According to the utility model, through the arrangement of the adjusting mechanism, when the testing angle of the safety helmet is adjusted, the motor is started and drives the rotating shaft to rotate, so that the placing seat rotates by taking the rotating shaft as the axis, the effect of adjusting the angle of the safety helmet is achieved, and different parts of the safety helmet can be tested. When the placing base rotates, the limiting rod slides in the arc-shaped sliding groove, the placing base is limited, stable rotation of the placing base is guaranteed, and therefore the testing angle of the safety helmet is flexibly changed, and testing comprehensiveness and accuracy are improved.

Description

Technical Field

[0001] This utility model belongs to the field of safety helmet testing technology, and in particular relates to a fixing structure for a safety helmet impact and puncture resistance tester. Background Technology

[0002] The impact and puncture resistance tester for safety helmets is a key piece of equipment for testing helmet performance. It tests the helmet's impact and puncture resistance by dropping a weight from a specific height to impact or puncture it. Widely used by helmet manufacturers, quality testing institutions, and research institutions, it is of great significance for ensuring helmet quality, improving protective technology, and maintaining user safety. In real-life use, helmets may be subjected to impacts and punctures from different angles. However, some existing impact and puncture resistance testers are difficult to adjust the helmet's angle during use, thus failing to simulate the different impact and puncture conditions a helmet might experience in actual use. Consequently, the test results do not accurately reflect the helmet's protective performance. Utility Model Content

[0003] The purpose of this invention is to provide a fixing structure for a safety helmet impact and puncture resistance tester. By incorporating an adjustment mechanism, it solves the problem that some existing impact and puncture resistance testers have difficulty adjusting the angle of the safety helmet during use.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a fixing structure for a safety helmet impact and puncture resistance tester, comprising an impact and puncture resistance tester, wherein the impact and puncture resistance tester is provided with an adjustment mechanism and a fixing mechanism.

[0006] The adjustment mechanism includes a protective railing installed on the inner bottom wall of the impact and puncture resistance tester. Two adjustment seats are installed on the inner bottom wall of the protective railing. A motor is fixedly connected to the front side of the adjustment seat located at the front. The output shaft of the motor is fixedly connected to a rotating shaft through a coupling. The rear end of the rotating shaft passes through the two adjustment seats and is rotatably connected to the two adjustment seats. A placement seat is fixedly connected to the outer wall of the rotating shaft. A head mold is installed on the top of the placement seat. The fixing mechanism includes an electric push rod fixedly connected to the inner bottom wall of the placement seat.

[0007] Furthermore, each of the two adjustment seats has an arc-shaped sliding groove on the side that is close to each other. The front and rear sides of the placement seat are fixedly connected with limit rods. The ends of the two limit rods that are far apart from each other extend into the interior of the corresponding arc-shaped sliding groove and slide in connection with the corresponding arc-shaped sliding groove.

[0008] Furthermore, two guide rods are fixedly connected to the inner wall of the placement seat, a support plate is fixedly connected to the outer wall of the two guide rods, and a support rod is fixedly connected to the top of the support plate.

[0009] Furthermore, a slider one is slidably connected to the outer wall of the two guide rods, and a slider two is slidably connected to the outer wall of the two guide rods. The output shaft of the electric push rod is fixedly connected to slider one.

[0010] Furthermore, a Z-shaped plate is rotatably connected to the top of the support rod, and connecting plates are hinged between slider one and slider two and the Z-shaped plate.

[0011] Furthermore, the top of the placement base is provided with several sliding grooves, and the tops of both slider one and slider two are fixedly connected with U-shaped plates. The tops of both U-shaped plates extend to the outside of the placement base and are slidably connected to the corresponding sliding grooves.

[0012] Furthermore, each of the two U-shaped plates is fixedly connected to an arc-shaped clamp on the side where they are close to each other, and the inner walls of the two arc-shaped clamps are fixedly connected to an anti-slip pad.

[0013] This utility model has the following beneficial effects:

[0014] 1. By setting up an adjustment mechanism, specifically when adjusting the test angle of the safety helmet, the motor is started, and the motor drives the rotating shaft to rotate, thereby causing the placement seat to rotate around the shaft as the axis, achieving the effect of adjusting the angle of the safety helmet so as to test different parts of the safety helmet. When the placement seat rotates, the limit rod slides in the arc-shaped groove, which both limits the placement seat and ensures its rotational stability, thus flexibly changing the test angle of the safety helmet and improving the comprehensiveness and accuracy of the test.

[0015] 2. By setting up a fixing mechanism, specifically when testing the safety helmet, the electric push rod is activated, and its output shaft pushes slider one to slide. Through the connecting plate and Z-shaped plate, slider two slides synchronously, causing the U-shaped plate to move the arc-shaped clamping plate closer or further away. When the arc-shaped clamping plates move closer to each other, they can clamp the safety helmet. The anti-slip pad increases friction and prevents the safety helmet from sliding, achieving reliable fixing, ensuring the smooth progress of the test, and improving the reliability and safety of the test.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the protective railing of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the adjusting seat of this utility model;

[0021] Figure 4 This is a schematic diagram of the arc-shaped slide groove of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the placement base of this utility model;

[0023] Figure 6 This is a schematic diagram of the guide rod of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Impact and puncture resistance tester; 2. Adjustment mechanism; 3. Fixing mechanism; 21. Guardrail; 22. Adjustment seat; 23. Rotating shaft; 24. Motor; 25. Placement seat; 26. Head mold; 27. Arc-shaped slide groove; 28. Limiting rod; 31. Electric push rod; 32. Guide rod; 33. Support plate; 34. Support rod; 35. Slider one; 36. Slider two; 37. Z-shaped plate; 38. Connecting plate; 39. Slide groove; 310. U-shaped plate; 311. Arc-shaped clamping plate; 312. Anti-slip mat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6As shown, this utility model is a fixing structure for a safety helmet impact and puncture resistance tester, including an impact and puncture resistance tester 1. The impact and puncture resistance tester 1 is equipped with an adjustment mechanism 2 and a fixing mechanism 3. The adjustment mechanism 2 includes a protective railing 21 installed on the inner bottom wall of the impact and puncture resistance tester 1. Two adjustment seats 22 are installed on the inner bottom wall of the protective railing 21. A motor 24 is fixedly connected to the front side of the adjustment seat 22 located on the front side. The output shaft of the motor 24 is fixedly connected to a rotating shaft 23 via a coupling. The rear end of the rotating shaft 23 passes through the two adjustment seats 22 and is rotatably connected to them. A placement seat 25 is fixedly connected to the outer wall of the rotating shaft 23. A mounting bracket is installed on the top of the placement seat 25. The head mold 26 and the fixing mechanism 3 include an electric push rod 31 fixedly connected to the bottom wall of the placement seat 25. Two adjusting seats 22 each have an arc-shaped groove 27 on their adjacent sides. Limiting rods 28 are fixedly connected to the front and rear sides of the placement seat 25. The ends of the two limiting rods 28 that are far apart extend into the corresponding arc-shaped grooves 27 and slide together with them. By setting the adjusting mechanism 2, specifically when adjusting the test angle of the safety helmet, the motor 24 is started, driving the rotating shaft 23 to rotate, thereby causing the placement seat 25 to rotate around the rotating shaft 23, achieving the effect of adjusting the safety helmet angle for testing different parts of the helmet. When the placement seat 25 rotates, the limiting rods 28 slide within the arc-shaped grooves 27, both limiting the placement seat 25 and ensuring its rotational stability, thus flexibly changing the test angle of the safety helmet and improving the comprehensiveness and accuracy of the test.

[0028] Two guide rods 32 are fixedly connected to the inner wall of the placement base 25. A support plate 33 is fixedly connected to the outer wall of the two guide rods 32. A support rod 34 is fixedly connected to the top of the support plate 33. A slider 35 and a slider 36 are slidably connected to the outer wall of the two guide rods 32. The output shaft of the electric push rod 31 is fixedly connected to the slider 35. A Z-shaped plate 37 is rotatably connected to the top of the support rod 34. A connecting plate 38 is hinged between the slider 35, the slider 36 and the Z-shaped plate 37. Several grooves 39 are opened on the top of the placement base 25. A U-shaped plate 310 is fixedly connected to the top of the slider 35 and the slider 36. The tops of the two U-shaped plates 310 extend to the placement base. The exterior of 25 is slidably connected to the corresponding slide groove 39. The two U-shaped plates 310 are fixedly connected to the side of each other with an arc-shaped clamping plate 311. The inner walls of the two arc-shaped clamping plates 311 are fixedly connected to an anti-slip pad 312. By setting a fixing mechanism 3, specifically when testing the safety helmet, the electric push rod 31 is activated, and its output shaft pushes the slider one 35 to slide. Through the connecting plate 38 and the Z-shaped plate 37, the slider two 36 is driven to slide synchronously, so that the U-shaped plate 310 drives the arc-shaped clamping plate 311 to move closer or further away. When the arc-shaped clamping plates 311 move closer to each other, the safety helmet can be clamped. The anti-slip pad 312 increases the friction and prevents the safety helmet from sliding, so as to achieve reliable fixing, ensure the smooth progress of the test, and improve the reliability and safety of the test.

[0029] A specific application of this embodiment is as follows: When testing a safety helmet, the safety helmet is placed on the outer wall of the head mold 26 and fixed by the fixing mechanism 3. Then, the safety helmet is tested. When it is necessary to adjust the angle of the safety helmet during the test to test different parts of the safety helmet, the motor 24 is started. The motor 24 drives the rotating shaft 23 to rotate. When the rotating shaft 23 rotates, it drives the placement seat 25 to rotate within a certain range around the rotating shaft 23, thereby achieving the effect of adjusting the angle of the safety helmet. When the placement seat 25 rotates, it will drive the limiting rod 28 to slide in the arc-shaped slide groove 27 opened on the adjusting seat 22. The arc-shaped slide groove 27 and the limiting rod 28 can limit the placement seat 25 and also ensure that the rotation process of the placement seat 25 is more stable.

[0030] When the electric push rod 31 is activated, its output shaft pushes slider 35 to slide on guide rod 32. Slider 35, through connecting plate 38 connected to slider 36, drives Z-shaped plate 37 to rotate around the top of support rod 34. When Z-shaped plate 37 rotates, it drives slider 36, through connecting plate 38 connected to slider 36, to slide synchronously with slider 35 on guide rod 32. The U-shaped plate 310 at the top of slider 35 and slider 36 slides synchronously with slider 35 and slider 36 in slide groove 39. The relative movement of slider 36 and slider 2 causes the two U-shaped plates 310 to move closer or further apart, thereby causing the arc-shaped clamping plates 311 fixed on the U-shaped plates 310 to move closer or further apart. When it is necessary to fix the safety helmet, the electric push rod 31 pushes slider 1 35 and slider 2 36 to bring the two arc-shaped clamping plates 311 closer together, clamping the safety helmet in the middle. The anti-slip pads 312 on the inner wall of the arc-shaped clamping plates 311 can increase the friction and prevent the safety helmet from sliding during the test, thus fixing the safety helmet. Conversely, the electric push rod 31 retracts to release the safety helmet.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fixing structure for a safety helmet impact and puncture resistance tester, characterized in that: It includes an impact puncture resistance tester (1), which is provided with an adjustment mechanism (2) and a fixing mechanism (3); The adjustment mechanism (2) includes a guardrail (21) installed on the inner bottom wall of the impact puncture tester (1). Two adjustment seats (22) are installed on the inner bottom wall of the guardrail (21). A motor (24) is fixedly connected to the front side of the adjustment seat (22) located on the front side. The output shaft of the motor (24) is fixedly connected to a rotating shaft (23) through a coupling. The rear end of the rotating shaft (23) passes through the two adjustment seats (22) and is rotatably connected to the two adjustment seats (22). A placement seat (25) is fixedly connected to the outer wall of the rotating shaft (23). A head mold (26) is installed on the top of the placement seat (25). The fixing mechanism (3) includes an electric push rod (31) fixedly connected to the inner bottom wall of the placement seat (25).

2. The fixing structure for a safety helmet impact and puncture resistance tester according to claim 1, characterized in that, Both of the two adjustment seats (22) have arc-shaped grooves (27) on their sides that are close to each other. The front and rear sides of the placement seat (25) are fixedly connected to limit rods (28). The ends of the two limit rods (28) that are far apart from each other extend into the corresponding arc-shaped grooves (27) and slide in connection with the corresponding arc-shaped grooves (27).

3. The fixing structure for a safety helmet impact and puncture resistance tester according to claim 2, characterized in that, The inner wall of the placement seat (25) is fixedly connected to two guide rods (32), the outer wall of the two guide rods (32) is fixedly connected to a support plate (33), and the top of the support plate (33) is fixedly connected to a support rod (34).

4. The fixing structure for a safety helmet impact and puncture resistance tester according to claim 3, characterized in that, The outer walls of the two guide rods (32) are slidably connected to slider one (35), and the outer walls of the two guide rods (32) are slidably connected to slider two (36). The output shaft of the electric push rod (31) is fixedly connected to slider one (35).

5. The fixing structure for a safety helmet impact and puncture resistance tester according to claim 4, characterized in that, The top of the support rod (34) is rotatably connected to a Z-shaped plate (37), and a connecting plate (38) is hinged between the slider one (35) and slider two (36) and the Z-shaped plate (37).

6. The fixing structure for a safety helmet impact and puncture resistance tester according to claim 5, characterized in that, The top of the placement seat (25) is provided with several sliding grooves (39). The tops of the slider one (35) and slider two (36) are fixedly connected with U-shaped plates (310). The tops of the two U-shaped plates (310) extend to the outside of the placement seat (25) and are slidably connected to the corresponding sliding grooves (39).

7. The fixing structure for a safety helmet impact and puncture resistance tester according to claim 6, characterized in that, An arc-shaped clamp (311) is fixedly connected to one side of each of the two U-shaped plates (310) that are close to each other, and an anti-slip pad (312) is fixedly connected to the inner wall of each of the two arc-shaped clamps (311).

Images