Equipment for detecting shock resistance of safety helmet

Abstract

The utility model relates to the technical field of safety helmet performance detection devices, in particular to safety helmet impact resistance detection equipment which comprises a base, a support, a lifting assembly, a positioning assembly, an impact assembly and a fixing assembly. The lifting assembly comprises a lead screw, a motor, a moving seat and a lifting seat, the lead screw is rotationally connected with the support and penetrates through the support, the motor is connected with the lead screw and located on the top of the support, the moving seat is in threaded connection with the lead screw and located in the support, the lifting seat is fixedly connected with the moving seat and located on the outer side of the moving seat, and the positioning assembly is connected with the lifting seat. The impact assembly is connected with the support, the fixing assembly is connected with the base, and the problems that when the impact resistance detection device for the safety helmet is used, a puncture hammer is fixed through an electromagnet, and when various safety helmets are tested, the puncture hammer is inconvenient to reciprocate, and the testing efficiency of the device is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety helmet performance detection devices, in particular to a safety helmet impact resistance detection device. Background Technique

[0002] The existing safety helmet impact resistance detection device needs to manually lift the cone head group from the bottom to the top for adsorption and fixation, with a relatively high labor intensity, which will cause the experimenter's arm to ache during long-term detection.

[0003] The existing patent with publication number CN218382173U discloses a safety helmet impact resistance detection device, which includes a base, an inverted L-shaped bracket, an openable protective tube, a pressure sensor, a support plate, a threaded hole plate, a plastic five-star handle bolt, a head mold, an electromagnet, a plastic limit sleeve, a limit post, a puncture hammer, a through hole, a forward and reverse speed regulation motor, a roller for winding a steel wire rope, a hook assembly, and a force measuring display. Manually operate the forward and reverse speed regulation motor to release the steel wire rope. After the steel wire rope and the hook assembly pass through the openable protective tube, they can be inserted into the through hole. The forward and reverse speed regulation motor can also rotate and wind up the steel wire rope through the roller, lifting the limit post and the puncture hammer. Finally, manually lift the limit post and the puncture hammer a short distance to insert the limit post into the plastic limit sleeve, turn on the electromagnet to make it adsorb and fix, and disassemble the hook assembly to complete the experimental preparation work. This device is easy to operate, reduces the labor amount, and has practicability.

[0004] However, when the above-mentioned safety helmet impact resistance detection device is in use, the puncture hammer is fixed by an electromagnet. When testing various safety helmets, it is not convenient to reciprocate the puncture hammer, reducing the testing efficiency of the device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a safety helmet impact resistance detection device, which solves the problem that when the safety helmet impact resistance detection device is in use, the puncture hammer is fixed by an electromagnet. When testing various safety helmets, it is not convenient to reciprocate the puncture hammer, reducing the testing efficiency of the device.

[0006] To achieve the above object, the utility model provides a safety helmet impact resistance detection device, which includes a base and a bracket. The bracket is fixedly connected to the base and is located on the top of the base. It further includes a lifting component, a positioning component, an impact component and a fixing component. The lifting component includes a lead screw, a motor, a moving seat and a lifting seat. The lead screw is rotatably connected to the bracket and passes through the bracket. The motor is connected to the lead screw and is located on the top of the bracket. The moving seat is threadedly connected to the lead screw and is located inside the bracket. The lifting seat is fixedly connected to the moving seat and is located outside the moving seat. The positioning component is connected to the lifting seat, the impact component is connected to the bracket, and the fixing component is connected to the base.

[0007] Among them, the lifting component further includes an electromagnet and guide bars. The electromagnet is fixedly connected to the lifting seat and is located on the top of the lifting seat. The number of the guide bars is two. The two guide bars are respectively fixedly connected to the lifting seat and are respectively located inside the bracket.

[0008] Among them, the positioning component includes a rotating shaft, a fixing plate and a positioning pin. The rotating shaft is rotatably connected to the lifting seat and is located inside the lifting seat. The fixing plate is fixedly connected to the rotating shaft and is located outside the rotating shaft. The positioning pin is detachably connected to the lifting seat and passes through the rotating shaft.

[0009] Among them, the impact component includes guide rods, an impact seat and impact springs. The number of the guide rods is multiple. The multiple guide rods are respectively slidably connected to the bracket and respectively pass through the lifting seat. The impact seat is fixedly connected to the guide rods and is located at the bottom of the guide rods. The number of the impact springs is multiple. The multiple impact springs are respectively fixedly connected to the impact seat and are respectively located between the impact seat and the bracket.

[0010] Among them, the fixing component includes a support seat, positioning columns, fixing springs and fixing seats. The support seat is fixedly connected to the base and is located on the top of the base. The positioning columns are fixedly connected to the support seat and are located on the top of the support seat. The number of the fixing springs is multiple. The multiple fixing springs are respectively fixedly connected to the support seat and are respectively located inside the support seat. The number of the fixing seats is two. The two fixing seats are respectively fixedly connected to the fixing springs and are respectively located at the ends of the fixing springs away from the support seat.

[0011] An impact resistance testing device for safety helmets of the present utility model. The base and the bracket provide support for the device. The motor provides power for the lifting assembly. When the device is in use, the rotation of the motor drives the screw rod to rotate, and at the same time drives the moving seat and the lifting seat to lift upward, lifting the impact assembly to the high point of the bracket. The impact assembly impacts the safety helmet. After the impact is completed, the motor drives the lifting seat to move downward, and then lifts the impact assembly to the high point of the bracket again, facilitating the reciprocating movement of the impact seat, solving the problem that when the impact resistance testing device for safety helmets is in use, the puncture hammer is fixed by an electromagnet, and when testing various safety helmets, it is not convenient to reciprocate the puncture hammer, reducing the testing efficiency of the device. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of an impact resistance testing device for safety helmets according to the first embodiment of the present utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the lifting assembly according to the first embodiment of the present utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the positioning assembly according to the first embodiment of the present utility model.

[0016] Figure 4 It is a schematic diagram of the overall structure of an impact resistance testing device for safety helmets according to the second embodiment of the present utility model.

[0017] In the figure: 101 - base, 102 - bracket, 103 - screw rod, 104 - motor, 105 - moving seat, 106 - lifting seat, 107 - electromagnet, 108 - guide bar, 109 - rotating shaft, 110 - fixing plate, 111 - positioning pin, 112 - guide rod, 113 - impact seat, 114 - impact spring, 201 - support seat, 202 - positioning column, 203 - fixing spring, 204 - fixing seat. Detailed Description of the Embodiments

[0018] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0019] The first embodiment of the present application is as follows:

[0020] Please refer to Figures 1 to 3 , in which Figure 1 is a schematic diagram of the overall structure of a safety helmet impact resistance testing device according to the first embodiment of the present utility model, Figure 2 is a schematic diagram of the structure of the lifting component according to the first embodiment of the present utility model, Figure 3 is a schematic diagram of the structure of the positioning component according to the first embodiment of the present utility model. The present utility model provides a safety helmet impact resistance testing device, including a base 101, a bracket 102, a lifting component, a positioning component, and an impact component. The lifting component includes a lead screw 103, a motor 104, a moving seat 105, a lifting seat 106, an electromagnet 107, and a guide bar 108. The positioning component includes a rotating shaft 109, a fixing plate 110, and a positioning pin 111. The impact component includes a guide rod 112, an impact seat 113, and an impact spring 114. By the foregoing solution, the problem that when the impact resistance testing device for safety helmets is in use, the puncture hammer is fixed by an electromagnet, and when testing various safety helmets, it is not convenient to reciprocate the puncture hammer, reducing the testing efficiency of the device is solved. It can be understood that the foregoing solution can be used in the scenario of testing safety helmets, and can also be used to solve the problem of fixing safety helmets when testing safety helmets.

[0021] For this specific embodiment, the bracket 102 is fixedly connected to the base 101 and is located on the top of the base 101. The lead screw 103 is rotatably connected to the bracket 102 and passes through the bracket 102. The motor 104 is connected to the lead screw 103 and is located on the top of the bracket 102. The moving seat 105 is threadedly connected to the lead screw 103 and is located inside the bracket 102. The lifting seat 106 is fixedly connected to the moving seat 105 and is located outside the moving seat 105. The positioning component is connected to the lifting seat 106. The impact component is connected to the bracket 102. The fixing component is connected to the base 101. The base 101 and the bracket 102 provide a supporting role for the device. The motor 104 provides power for the lifting component. When the device is in use, the rotation of the motor 104 drives the rotation of the lead screw 103, and at the same time drives the moving seat 105 and the lifting seat 106 to lift upward, lifting the impact component to the high point of the bracket 102. The impact component impacts the safety helmet. After the impact is completed, the motor 104 drives the lifting seat 106 to move downward, and again lifts the impact component to the high point of the bracket 102, facilitating the reciprocating movement of the impact seat 113.

[0022] Among them, the electromagnet 107 is fixedly connected to the lifting seat 106 and is located at the top of the lifting seat 106. The number of the guide bars 108 is two. The two guide bars 108 are respectively fixedly connected to the lifting seat 106 and are respectively located inside the bracket 102. When the device is in use, the electromagnet 107 is energized to fix the impact seat 113 at the bottom of the lifting seat 106, and the guide bars 108 provide guiding and limiting functions for the lifting seat 106.

[0023] Secondly, the rotating shaft 109 is rotatably connected to the lifting seat 106 and is located inside the lifting seat 106. The fixing plate 110 is fixedly connected to the rotating shaft 109 and is located outside the rotating shaft 109. The positioning pin 111 is detachably connected to the lifting seat 106 and passes through the rotating shaft 109. The rotating shaft 109 provides a rotating effect for the fixing plate 110, and the positioning pin 111 provides a limiting function for the rotating shaft 109. When the device is in use, the side surface of the impact seat 113 is fixed by the fixing plate 110. During impact, the fixing of the impact seat 113 can be released by pulling out the positioning pin 111.

[0024] Thirdly, the number of the guide rods 112 is multiple. The multiple guide rods 112 are respectively slidably connected to the bracket 102 and respectively pass through the lifting seat 106. The impact seat 113 is fixedly connected to the guide rods 112 and is located at the bottom of the guide rods 112. The number of the impact springs 114 is multiple. The multiple impact springs 114 are respectively fixedly connected to the impact seat 113 and are respectively located between the impact seat 113 and the bracket 102. The guide rods 112 provide a guiding function for the impact seat 113, and the impact springs 114 provide elastic force for the impact seat 113. When the lifting seat 106 is lifted, the impact seat 113 is driven to be lifted synchronously, so that the impact seat 113 moves upward along the guide rods 112. After the fixing of the impact seat 113 is released, the elastic force provided by the impact springs 114 enables the impact seat 113 to move downward rapidly along the guide rods 112, and the impact seat 113 moving downward rapidly impacts the safety helmet.

[0025] Using a safety helmet impact resistance detection device according to this embodiment, the base 101 and the bracket 102 provide support for the device, and the motor 104 provides power for the lifting assembly. When the device is in use, the rotation of the motor 104 drives the screw rod 103 to rotate, and at the same time drives the moving seat 105 and the lifting seat 106 to lift upward, lifting the impact assembly to the high point of the bracket 102, and impacting the safety helmet through the impact assembly. After the impact is completed, the motor 104 drives the lifting seat 106 to move downward, and once again lifts the impact assembly to the high point of the bracket 102, facilitating the reciprocating movement of the impact seat 113, and solving the problem that when using an impact resistance detection device for safety helmets, the puncture hammer is fixed by an electromagnet, and when testing various safety helmets, it is not convenient to reciprocate the puncture hammer, reducing the testing efficiency of the device.

[0026] The second embodiment of this application is:

[0027] On the basis of the first embodiment, please refer to Figure 4 , where Figure 4 is the overall structural schematic diagram of a safety helmet impact resistance detection device according to the second embodiment of the present utility model.

[0028] The safety helmet impact resistance detection device of this embodiment further includes a fixing component, and the fixing component includes a support seat 201, a positioning column 202, a fixing spring 203, and a fixing seat 204.

[0029] For this specific embodiment, the support seat 201 is fixedly connected to the base 101 and is located on the top of the base 101. The positioning column 202 is fixedly connected to the support seat 201 and is located on the top of the support seat 201. The number of the fixing springs 203 is multiple, and the multiple fixing springs 203 are respectively fixedly connected to the support seat 201 and are respectively located inside the support seat 201. The number of the fixing seats 204 is two, and the two fixing seats 204 are respectively fixedly connected to the fixing springs 203 and are respectively located at the ends of the fixing springs 203 away from the support seat 201. The support seat 201 provides support for the fixing component, the positioning column 202 positions the safety helmet, and the fixing spring 203 provides elastic force for the fixing seat 204. When positioning the safety helmet, the safety helmet is initially positioned through the positioning column 202, and then the elastic force provided by the fixing springs 203 on both sides pushes the fixing seats 204 on both sides towards the direction of the positioning column 202, fixing the safety helmet between the two fixing seats 204.

[0030] When using the helmet impact resistance detection device of this embodiment to position the helmet, the helmet is initially positioned through the positioning column 202, and then the elastic force provided by the fixing springs 203 on both sides is used to push the fixing seats 204 on both sides towards the positioning column 202, fixing the helmet between the two fixing seats 204.

[0031] The above-disclosed are only one or more preferred embodiments of the present application, and the scope of rights of the present application cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.

Claims

1. A helmet impact resistance testing device, comprising a base and a bracket, wherein the bracket is fixedly connected to the base and located on the top of the base, characterized in that: It also includes a lifting assembly, a positioning assembly, an impact assembly and a fixing assembly; The lifting assembly includes a screw rod, a motor, a movable seat and a lifting seat. The screw rod is rotatably connected to the bracket and passes through the bracket. The motor is connected to the screw rod and is located at the top of the bracket. The movable seat is threadedly connected to the screw rod and is located inside the bracket. The lifting seat is fixedly connected to the movable seat and is located outside the movable seat. The positioning assembly is connected to the lifting seat, the impact assembly is connected to the bracket, and the fixed assembly is connected to the base.

2. The helmet impact resistance testing device according to claim 1, characterized in that: The lifting assembly also includes an electromagnet and a guide bar. The electromagnet is fixedly connected to the lifting seat and is located on the top of the lifting seat. There are two guide bars, which are respectively fixedly connected to the lifting seat and are respectively located inside the bracket.

3. The helmet impact resistance testing device according to claim 1, characterized in that: The positioning assembly includes a rotating shaft, a fixing plate and a positioning pin. The rotating shaft is rotatably connected to the lifting seat and is located inside the lifting seat. The fixing plate is fixedly connected to the rotating shaft and is located outside the rotating shaft. The positioning pin is detachably connected to the lifting seat and passes through the rotating shaft.

4. The helmet impact resistance testing device according to claim 1, characterized in that: The impact assembly includes a guide rod, an impact seat and an impact spring. There are multiple guide rods, each of which is slidably connected to the bracket and passes through the lifting seat respectively. The impact seat is fixedly connected to the guide rod and is located at the bottom of the guide rod. There are multiple impact springs, each of which is fixedly connected to the impact seat and is located between the impact seat and the bracket.

5. The helmet impact resistance testing device according to claim 1, characterized in that: The fixing assembly includes a support seat, a positioning column, a fixing spring and a fixing seat, the support seat is fixedly connected to the base and located at the top of the base, the positioning column is fixedly connected to the support seat and located at the top of the support seat, there are multiple fixing springs, and the multiple fixing springs are respectively fixedly connected to the support seat and located inside the support seat, and there are two fixing seats, and the two fixing seats are respectively fixedly connected to the fixing springs and located at one end of the fixing spring away from the support seat.

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