Impact test detection equipment for protective device
By designing an impact test detection equipment for protective equipment including a detection mechanism and a buffer mechanism, using the combination of damping oil and spring, the long-term swing and safety problems of testers caused by the large energy of the pendulum in the existing impact test machine are solved. , achieving more efficient testing process and personnel safety.
Patent Information
- Application Number
- CN202420550250.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-20
AI Technical Summary
When the existing impact test machine conducts non-metallic material impact test, the pendulum has a high energy during the swing process and takes a long time to stop by itself. The tester is prone to injury when manually stops it.
An impact test detection device for protective equipment including a detection mechanism and a buffer mechanism is designed. The buffer mechanism absorbs the energy of the pendulum through the connecting rod, support rod, buffer sleeve, inner sleeve, piston and damping oil components, using the flow of damping oil and the return effect of the spring to absorb the energy of the pendulum to prevent the pendulum from swinging due to inertia.
Effectively absorb the energy of the pendulum, reduce the swing time of the pendulum in the vertical plane, improve the test efficiency, and protect the tester from accidental damage.
Smart Images
Figure CN222461236U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of impact testing, in particular to an impact testing device for protective equipment. Background Art
[0002] With the improvement of safety technical requirements, various safety simulation test methods have emerged. Impact testing machine is suitable for impact testing of non-metallic material samples or products such as plastics, glass, ceramics, etc. It is a test instrument used to evaluate the impact resistance of materials.
[0003] When using existing impact testing machines to conduct impact tests on non-metallic materials, the impact action of the pendulum is controlled by a computer and released from the highest point, using its kinetic energy during the descent process to impact the non-metallic material. After the impact process is completed, the pendulum will swing in the vertical plane due to inertia until the energy of the pendulum is completely exhausted and it stops automatically or the tester grabs the pendulum by hand to stop it, and then the next test can be carried out. In this process, since the pendulum has a large amount of energy during the swing, it takes a long time to stop by itself. If the tester stops it by hand, the pendulum is likely to hit the tester's fingers and cause an accident. Utility Model Content
[0004] In order to make up for the above deficiencies, the utility model provides an impact test detection device for protective equipment.
[0005] The utility model is achieved in this way:
[0006] A kind of impact test detection equipment for protective equipment, including a detection mechanism and a buffer mechanism, the detection mechanism includes a fixed base, a support frame is installed on the top of the fixed base, a swing arm is rotatably connected to one side of the support frame, a pendulum is installed at the bottom end of the swing arm, the buffer mechanism includes a connecting rod and a support rod, the connecting rod is rotatably installed on one side of the support frame, the support rod and the connecting rod are connected, a buffer sleeve is installed at the bottom end of the support rod, a groove is provided on one side of the buffer sleeve, and an inner sleeve is installed in the groove, a plurality of first through holes and a second through holes are respectively provided on the outer side and the bottom of the inner sleeve, the inner sleeve and the buffer sleeve are filled with damping oil, a piston is slid inside the inner sleeve, a spring is connected between the piston and the inner sleeve, a pressure plate is installed on one side of the piston, and the pressure plate and the swing arm can be offset against each other.
[0007] The beneficial effect of adopting the above further scheme is that after the pendulum falls from the highest point and hits the protective device, the buffer mechanism can be rotated to the path of the swing arm. At this time, the pendulum will swing in the vertical plane due to inertia. When it falls for the second time, the swing arm will be squeezed with the pressure plate, so that the piston moves in the inner sleeve and squeezes the damping oil in the inner sleeve, so that the damping oil flows out through the second through hole and flows out from the first through hole to realize the flow of the damping oil, and the flowing damping oil will absorb the impact of the swing arm on the pressure plate, thereby achieving the purpose of absorbing the energy of the pendulum. Subsequently, the compressed spring is reset, so that the damping oil flows out from the first through hole and flows into the second through hole, so that the damping oil absorbs the energy released by the spring reset, and finally achieves the purpose of preventing the pendulum from swinging in the vertical plane due to inertia, thereby accelerating the purpose of testing the protective device.
[0008] Furthermore, the buffer sleeve, inner sleeve and piston are all arc-shaped.
[0009] The beneficial effect of adopting the above further solution is that, because the motion trajectory of the swing arm is arc-shaped, the piston can be made to cooperate with the motion trajectory of the swing arm by limiting the shapes of the buffer sleeve, the inner sleeve and the piston.
[0010] Furthermore, a buffer sponge pad is installed on one side of the pressing plate.
[0011] The beneficial effect of adopting the above further solution is that the buffer sponge pad can absorb the impact force of the swing arm on the pressure plate to prevent the pressure plate from being damaged.
[0012] Furthermore, a sealing bellows is connected between the piston and the buffer sleeve, an oil filling hole is opened at the bottom of the buffer sleeve, and a sealing plug is connected to the oil filling hole through threaded engagement.
[0013] The beneficial effect of adopting the above further solution is that the sealing bellows can prevent the damping oil from flowing out, while the oil filling hole can realize the addition of the damping oil.
[0014] Furthermore, a first motor and a second motor are installed on the back of the support frame, and the output end of the first motor is transmission-connected to the swing arm, and the output end of the second motor is transmission-connected to the connecting rod.
[0015] The beneficial effect of adopting the above further solution is that the first motor and the second motor can adjust the positions of the swing arm and the connecting rod.
[0016] Furthermore, a counterweight is connected inside the pendulum via screws.
[0017] The beneficial effect of adopting the above further solution is that the counterweight block is replaceable, so the purpose of adjusting the weight of the pendulum can be achieved, so that the pendulum can change its own weight as required.
[0018] Furthermore, the top of the fixed base is connected to a connecting seat by screws, and the two sides of the connecting seat are connected to a pair of clamping plates by screws, and the pendulum can rotate between the pair of clamping plates.
[0019] The beneficial effect of adopting the above further scheme is that a pair of splints can fix the protective device therein, and the shape formed by the pair of splints is not fixed. The pair of splints and the connecting seat need to be changed according to the different protective devices to match them.
[0020] The beneficial effect of the utility model is that the utility model obtains an impact test detection equipment for protective equipment through the above design. After the pendulum falls from the highest point and hits the protective equipment, the buffer mechanism can be rotated to the path of the swing arm. At this time, the pendulum will swing in the vertical plane due to inertia. When it falls for the second time, the swing arm will be squeezed with the pressure plate, so that the piston moves in the inner sleeve and squeezes the damping oil in the inner sleeve, so that the damping oil flows out through the second through hole and flows out from the first through hole to realize the flow of the damping oil, and the flowing damping oil absorbs the impact of the swing arm on the pressure plate, so as to achieve the purpose of absorbing the energy of the pendulum. Subsequently, the compressed spring is reset, so that the damping oil flows out from the first through hole and flows in from the second through hole, so that the damping oil absorbs the energy released by the reset of the spring, and finally achieves the purpose of preventing the pendulum from swinging in the vertical plane due to inertia, thereby accelerating the purpose of testing the protective equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A three-dimensional structural diagram of an impact test detection device for protective equipment provided by the utility model;
[0023] Figure 2 for Figure 1 A schematic diagram of the structure of structure A in the middle;
[0024] Figure 3 for Figure 1 A schematic diagram of the structure of structure B in the middle;
[0025] Figure 4 The utility model provides a schematic cross-sectional structure of a buffer mechanism of an impact test detection device for protective equipment.
[0026] In the figure: 100, detection mechanism; 1001, fixed base; 1002, support frame; 1003, swing arm; 1004, pendulum; 1005, connecting seat; 1006, clamping plate; 1007, counterweight; 200, buffer mechanism; 2001, connecting rod; 2002, support rod; 2003, buffer sleeve; 2004, inner sleeve; 2005, first through hole; 2006, second through hole; 2007, piston; 2008, pressure plate; 2009, spring; 2010, sealing bellows. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] Embodiment 1 of the utility model of an impact test detection device for protective equipment
[0030] The utility model provides the following technical solutions: Figure 1-Figure 4, including a detection mechanism 100 and a buffer mechanism 200, the detection mechanism 100 includes a fixed base 1001, a support frame 1002 is installed on the top of the fixed base 1001, one side of the support frame 1002 is rotatably connected to a swing arm 1003, and a pendulum 1004 is installed at the bottom of the swing arm 1003, and the buffer mechanism 200 includes a connecting rod 2001 and a supporting rod 2002, the connecting rod 2001 is rotatably installed on one side of the supporting frame 1002, the supporting rod 2002 is connected to the connecting rod 2001, and the supporting rod 2003 is connected to the connecting rod 2001. A buffer sleeve 2003 is installed at the bottom of 002, a groove is provided on one side of the buffer sleeve 2003, and an inner sleeve 2004 is installed in the groove, a plurality of first through holes 2005 and a second through hole 2006 are respectively provided on the outer side and the bottom of the inner sleeve 2004, and damping oil is filled in the inner sleeve 2004 and the buffer sleeve 2003, a piston 2007 slides inside the inner sleeve 2004, a spring 2009 is connected between the piston 2007 and the inner sleeve 2004, a pressure plate 2008 is installed on one side of the piston 2007, and the pressure plate 2008 is provided on the inner sleeve 2004. 008 and the swing arm 1003 can offset each other. After the pendulum 1004 falls from the highest point and hits the protective device, the buffer mechanism 200 can rotate to the path of the swing arm 1003. At this time, the pendulum 1004 will swing in the vertical plane due to inertia. When it falls for the second time, the swing arm 1003 will be squeezed with the pressure plate 2008, so that the piston 2007 moves in the inner sleeve 2004 and squeezes the damping oil in the inner sleeve 2004, so that the damping oil flows out through the second through hole 2006 and flows out from the first through hole 2008. 005 flows out to realize the flow of damping oil, and the flowing damping oil absorbs the impact of the swing arm 1003 on the pressure plate 2008, so as to achieve the purpose of absorbing the energy of the pendulum 1004, and then the compressed spring 2009 is reset, so that the damping oil flows out from the first through hole 2005 and flows into the second through hole 2006, so that the damping oil absorbs the energy released by the reset of the spring 2009, and finally achieves the purpose of preventing the pendulum 1004 from swinging in the vertical plane due to inertia, thereby accelerating the purpose of testing the protective device.
[0031] Embodiment 2 of the utility model of an impact test detection device for protective equipment
[0032] Reference Figure 1-Figure 4 Specifically, a sealing bellows 2010 is connected between the piston 2007 and the buffer sleeve 2003. An oil filling hole is opened at the bottom of the buffer sleeve 2003, and a sealing plug is connected to the oil filling hole through a threaded engagement. The sealing bellows 2010 can prevent the damping oil from flowing out, and the oil filling hole can realize the addition of damping oil.
[0033] Embodiment 3 of the utility model of an impact test detection device for protective equipment
[0034] Reference Figure 1-Figure 4Specifically, a first motor and a second motor are installed on the back of the support frame 1002, and the output end of the first motor is connected to the swing arm 1003 by transmission, and the output end of the second motor is connected to the connecting rod 2001 by transmission. The first motor and the second motor can adjust the position of the swing arm 1003 and the connecting rod 2001.
[0035] Specifically, the working principle of the impact test detection equipment for protective equipment is as follows: when in use, the pendulum 1004 is raised to the highest point by the first motor, and the buffer mechanism is moved away from the moving track of the swing arm 1003 by the second motor, and the protective equipment is fixed between a pair of clamping plates 1006, and then the pendulum 1004 is lowered to make it fall automatically. After the pendulum 1004 falls from the highest point and hits the protective equipment, the buffer mechanism 200 can be rotated to the path of the swing arm 1003 by the second motor. At this time, the pendulum 1004 will swing in the vertical plane due to inertia. When it falls for the second time, the swing arm 1003 will be squeezed with the pressure plate 2008, so that the piston 2 007 moves in the inner sleeve 2004 and squeezes the damping oil in the inner sleeve 2004, so that the damping oil flows out through the second through hole 2006 and flows out from the first through hole 2005 to realize the flow of the damping oil, and the flowing damping oil will absorb the impact of the swing arm 1003 on the pressure plate 2008, so as to achieve the purpose of absorbing the energy of the pendulum 1004, and then the compressed spring 2009 is reset, so that the damping oil flows out from the first through hole 2005 and flows into the second through hole 2006, so that the damping oil absorbs the energy released by the reset of the spring 2009, and finally achieves the purpose of preventing the pendulum 1004 from swinging in the vertical plane due to inertia, thereby accelerating the purpose of testing the protective device.
[0036] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An impact test device for protective equipment, characterized in that: The invention comprises a detection mechanism (100) and a buffer mechanism (200), wherein the detection mechanism (100) comprises a fixed base (1001), a support frame (1002) is installed on the top of the fixed base (1001), a swing arm (1003) is rotatably connected to one side of the support frame (1002), a pendulum (1004) is installed at the bottom end of the swing arm (1003), and the buffer mechanism (200) comprises a connecting rod (2001) and a supporting rod (2002), wherein the connecting rod (2001) is rotatably installed on one side of the supporting frame (1002), the supporting rod (2002) and the connecting rod (2001) are connected, and the bottom end of the supporting rod (2002) A buffer sleeve (2003) is installed, one side of the buffer sleeve (2003) is provided with a groove, and an inner sleeve (2004) is installed in the groove, the outer side and the bottom of the inner sleeve (2004) are respectively provided with a plurality of first through holes (2005) and second through holes (2006), the inner sleeve (2004) and the buffer sleeve (2003) are filled with damping oil, a piston (2007) slides inside the inner sleeve (2004), a spring (2009) is connected between the piston (2007) and the inner sleeve (2004), a pressure plate (2008) is installed on one side of the piston (2007), and the pressure plate (2008) and the swing arm (1003) can be offset against each other.
2. The impact test detection equipment for protective equipment according to claim 1, characterized in that: The buffer sleeve (2003), the inner sleeve (2004) and the piston (2007) are all arc-shaped.
3. The impact test detection equipment for protective equipment according to claim 1, characterized in that: A buffer sponge pad is installed on one side of the pressure plate (2008).
4. The impact test detection equipment for protective equipment according to claim 1, characterized in that: A sealing bellows (2010) is connected between the piston (2007) and the buffer sleeve (2003); an oil filling hole is provided at the bottom of the buffer sleeve (2003), and a sealing plug is connected to the oil filling hole through threaded engagement.
5. The impact test detection equipment for protective equipment according to claim 1, characterized in that: A first motor and a second motor are installed on the back of the support frame (1002), and the output end of the first motor is transmission-connected to the swing arm (1003), and the output end of the second motor is transmission-connected to the connecting rod (2001).
6. The impact test detection equipment for protective equipment according to claim 1, characterized in that: The inside of the pendulum (1004) is connected with a counterweight (1007) via screws.
7. The impact test detection equipment for protective equipment according to claim 1, characterized in that: The top of the fixed base (1001) is connected to a connecting base (1005) by screws, and the two sides of the connecting base (1005) are connected to a pair of clamping plates (1006) by screws, and the pendulum (1004) can rotate between the pair of clamping plates (1006).