CN110243566B - Protection component, drop test device and mobile phone drop test device - Google Patents
Protection component, drop test device and mobile phone drop test device Download PDFInfo
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- CN110243566B CN110243566B CN201910620955.XA CN201910620955A CN110243566B CN 110243566 B CN110243566 B CN 110243566B CN 201910620955 A CN201910620955 A CN 201910620955A CN 110243566 B CN110243566 B CN 110243566B
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- 238000012360 testing method Methods 0.000 title claims abstract description 97
- 238000004804 winding Methods 0.000 claims description 29
- 230000001681 protective effect Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000000873 masking effect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 241001417494 Sciaenidae Species 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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Abstract
The application discloses a protection component, drop test device and cell-phone drop test device for drop test device, protection component includes: the cover part is arranged on a bracket of the testing device, has a first working state and a second working state, and is configured to cover the object taking opening of the testing device when in the first working state and open the object taking opening when in the second working state; and the sensing part is configured to generate a covering signal when sensing that the covering part is in the first working state. Above-mentioned structure reduction that can be fine is when the test product falls the performance, and operating personnel limbs mistake is stretched into the support in and is injured by a crashing object's risk. Moreover, the protection assembly further provides a signal interface of the testing device for judging whether the fetching port is covered, and the drop testing device can know whether the fetching port is covered by receiving the covering signal, so that the testing device can better control the working process of the testing device by acquiring the state.
Description
Technical Field
The application relates to the technical field of impact testing equipment, in particular to a protection assembly for a drop test device, a drop test device and a mobile phone drop test device.
Background
A drop test device is experimental equipment for testing the drop performance of an object to be tested. After a sample of a product with the requirement on the anti-falling performance is molded, the sample is subjected to a falling test so as to know whether the overall anti-falling performance of the product meets the set requirement.
A drop test apparatus generally includes a support frame, a drop platform, a carrier assembly, and a drive assembly. The product to be tested is positioned on the carrier assembly. The product is falling to the in-process that falls the platform, and the speed is very fast when carrying thing subassembly and falling, and it has certain danger.
In order to reduce the danger of the drop test device, a baffle is arranged on a bracket of the drop test device, so that a product to be tested is tested in a relatively closed space. But the drop test device is provided with a pick-up port in order to facilitate the putting in or taking out of the product. So the risk that the limbs of the operator are mistakenly inserted into the bracket through the object taking opening to be injured by smashing still exists.
Content of application
The application provides a protection component, a drop test device and a mobile phone drop test device for a drop test device, which can improve the safety performance of the drop test device.
According to an aspect of the application, there is provided a fender assembly for a drop testing device having an access opening, the fender assembly comprising:
the covering part is arranged on a bracket of the testing device, has a first working state and a second working state, and is configured to cover the object taking opening when in the first working state and open the object taking opening when in the second working state; and
the sensing part is used for sensing the working state of the covering part and is configured to generate a covering signal when sensing that the covering part is in the first working state.
According to some embodiments, the sensing portion comprises a pressure sensor, and the pressure sensor is configured to generate a masking signal when squeezed;
the cover portion is configured to compress the pressure sensor when in the first operating state.
According to some embodiments, the cover portion comprises:
a winding member mounted to the bracket; and
the covering part comprises a free end and a fixed end, the fixed end is connected with the winding part, and the covering part is configured to cover the object taking opening when the covering part is in a first working state and is wound on the winding part when the covering part is in a second working state so as to open the object taking opening;
wherein the winding member is configured to generate an elastic force that winds the covering member around the winding member.
According to some embodiments, the sensing portion comprises a pressure sensor, and the pressure sensor is configured to generate a masking signal when squeezed;
the winding piece and the sensing part are respectively arranged at two opposite sides of the fetching opening;
the free end of the covering part is connected with a clamping hook part, and the clamping hook part is used for hooking the sensing part when the covering part is located at the first working position so as to transmit elastic force, which is given to the covering part by the winding part, to the pressure sensor.
According to some embodiments, the winding member is arranged above the access opening;
the sensing part is arranged on the bracket and is arranged below the fetching opening.
According to some embodiments, the cover is transparent.
The present application also provides in a second aspect a drop test device comprising a guard assembly as claimed in any one of the preceding claims.
According to some embodiments, the drop test device further comprises:
an object carrying assembly, wherein an object to be tested is positioned on the object carrying assembly;
the driving assembly is configured to drive the carrying assembly to ascend or descend; and
the controller is used for controlling the driving state of the driving assembly, and the covering signal is transmitted to the controller;
wherein the controller is configured to place the drive assembly in a non-activatable state when the cover signal is not received.
According to some embodiments, the drop test device further comprises:
the alarm is used for alarming and is electrically connected with the controller and is controlled by the controller;
the sensing part is configured to generate an opening signal when sensing that the covering part is not in the first working state, and the controller is configured to control the alarm to give an alarm if receiving the opening signal when the driving device is in the starting state.
The third aspect of the present application further provides a mobile phone drop test device, including:
the shield assembly of any one of the above.
The application provides a protection component for a drop test device, and the protection component comprises a covering part and a sensing part. The covering part can cover the fetching opening of the bracket under the first working state, and the fetching opening of the bracket is opened under the second working state. When the product to be tested needs to be taken and placed, the covering part can be in the second working state. When a product is required to be subjected to a drop test, the covering part is in a first working state. Therefore, the risk that the limbs of an operator are mistakenly stretched into the support to be injured by smashing when the product drop performance is tested is well reduced.
And, this application still is provided with sensing portion, and sensing portion can sense the operating condition of covering portion, produces when sensing to covering portion and covers the signal when being in first operating condition. The protection component of this application provides testing arrangement promptly and gets the signal interface that the thing mouth was covered or not, and drop testing arrangement can cover the signal through receiving and know and get the thing mouth and whether covered, makes testing arrangement can carry out corresponding control through acquireing this state and better to its self working process.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of a drop test apparatus according to the related art;
FIG. 2 is a schematic cross-sectional view of the drop test apparatus shown in FIG. 1;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
FIG. 4 is a perspective view of a drop tester with a shield assembly installed in accordance with one embodiment of the present application;
FIG. 5 is a partial schematic view of a drop tester with a shield assembly installed therein according to one embodiment of the present application, wherein the covering is shown in a first operational state;
FIG. 6 is an enlarged partial schematic view of FIG. 5;
figure 7 is a partial schematic view of a drop tester with a shield assembly installed therein according to one embodiment of the present application, wherein the covering is shown in a second operational state.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1-3, the drop test apparatus 100 includes a stand 110, a drop platform 150, a carrier assembly 140, and a drive assembly 130. The bracket 110 is externally provided with a baffle 111. The drop platform 150, carrier assembly 140, and drive assembly 130 are all disposed within the space enclosed by the barrier 111. To insert or remove an item to be tested, the rack 110 has an access opening 112. Since drop testers are typically operated by professional testers, the access port 112 is not a high safety risk. No sealing member is provided at the access port 112 of the drop tester. Due to the long moving stroke and the fast moving speed of the object carrying assembly 140 in the support 110, if the safety awareness of the person operating the drop test device 100 is not high, the risk that the limb is accidentally inserted into the support 110 from the object taking opening 112 and injured by the object carrying assembly 140 easily occurs.
As shown in fig. 4-6, the present embodiment provides a shield assembly for a drop test device 100 that is configured to be mounted to the drop test device 100 to reduce the safety risk presented by the drop test device 100.
The shield assembly includes a cover portion 160 and a sensing portion 170. The cover portion 160 is mounted to the bracket 110 of the drop test device 100, and the cover portion 160 has a first operating state and a second operating state. The cover portion 160 is configured to cover the access opening 112 of the drop testing device 100 in the first operating state and to open the access opening 112 in the second operating state. When the operator needs to put or take out an article from or into the testing device, the cover portion 160 can be in the second working state, so that the article taking opening 112 is opened. When the operator needs to perform the drop resistance performance test on the product to be tested, the covering part 160 can be in the first working state to cover the object taking opening 112, so that the limb of the operator is prevented from being mistakenly inserted into the testing device.
The present embodiment takes into account that the drop test device 100 may be operated by a layperson, so that there is a risk that the limb of the operator may be inserted into the access opening 112 by mistake. A cover portion 160 is provided, the cover portion 160 covering the access opening 112 of the drop test device 100 when testing.
Meanwhile, the covering part 160 can prevent the product to be tested from falling onto the falling platform 150 and then popping up to the object taking opening 112 and falling to the ground. When the product to be tested falls on the ground to form a secondary fall, the fall parameters of the product to be tested are changed, so that the test result of the anti-fall performance of the product to be tested is influenced. Therefore, the covering portion 160 is disposed to effectively prevent the product to be tested from being ejected out of the object-taking opening 112 of the drop test device 100, thereby improving the test accuracy of the product to be tested.
The guard assembly further includes a sensing portion 170, the sensing portion 170 being configured to generate a cover signal when sensing that the cover portion 160 is in the first operating state. That is, the sensing portion 170 can identify whether the covering portion 160 covers the access opening 112 of the drop test device 100 in the form of data, and has a data interface for transmitting the covering signal. The drop test device 100 can know whether the object taking opening 112 is covered or not by acquiring the covering signal, so that the subsequent working process can be controlled according to the signal, and the safety performance of the drop test device 100 is further improved.
For example, the drop test device 100 can determine whether to perform a drop test based on whether a masking signal is received. The drop test device 100 does not activate the drive assembly 130 to move the carrier assembly 140 until a cover signal is received. When the covering signal is not received, the drop test device 100 may be configured such that the driving assembly 130 cannot be opened, thereby preventing the drop test from occurring without closing the article taking port 112. Of course, the drop test device 100 may also perform other forms of logic control after receiving the masking signal to enhance its safety.
It can be understood that any sensing part 170 capable of sensing the state information of the covering portion 160 and generating a covering signal when sensing that the covering portion 160 is in the first working state can be referred to as the sensing part 170 in this embodiment. The specific sensing form of the sensing part 170 is not limited herein. The sensor portion 170 may acquire the state of the cover portion 160 by sensing pressure information, the state of the cover portion 160 by sensing infrared ray information, the state of the cover portion 160 by sensing voltage information, or the state of the cover portion 160 by sensing current information.
In order to reduce the production cost, the sensing part 170 may include a pressure sensor, and the pressure sensor generates a masking signal when being pressed. The cover portion 160 is configured to compress the pressure sensor when in the first operating state. Specifically, a pressing member may be disposed on the covering portion 160, and when the covering portion 160 is in the first operating state, the pressing member and the pressure sensor generate a small positional interference, so that the pressing member presses the pressure sensor, and the pressure sensor generates a covering signal that the covering portion 160 is in the first operating state after being pressed.
The sensing part 170 may be disposed at any position where its sensing process can be implemented. When the sensing portion 170 comprises a pressure sensor, the pressure sensor may be disposed on the frame 110 of the drop test device 100 to facilitate pressure generation with the cover portion 160. The pressure sensor may also be free of contact with the drop test device 100, which is disposed at the ground below the drop test device 100. Therefore, the vibration generated when the drop test device 100 works can not be transmitted to the pressure sensor, the service life of the pressure sensor is prolonged, and the sensing precision of the pressure sensor is also improved.
The covering portion 160 may be a plate-shaped member hinged to the bracket 110 of the drop test device 100, and its operation state is switched by rotating about a hinge axis. Specifically, one edge of the covering portion 160 may be hinged to the upper end of the access opening 112 with the hinge axis thereof being arranged transversely. The cover portion 160, which is normally shaped like a plate, covers the access opening 112 due to gravity, that is, the cover portion 160 is in the first working state in normal state. When the cover portion 160 is turned upward, the cover portion 160 is switched from the first operating state to the second operating state.
As shown in fig. 5, the cover portion 160 may further include a winding member 163 and a cover member 161. The winding member 163 is mounted to the bracket 110. The cover 161 includes a fixed end and a free end, and the fixed end of the cover 161 is connected to the winding member 163. The cover 161 is made of a flexible material and has a first operating position and a second operating position. The cover 161 is configured to cover the access opening 112 in the first operating position and to be wound around the winding member 163 in the second operating position, so that the access opening 112 is opened. I.e. the first operating position of the cover member 161 corresponds to the first operating state of the cover portion 160, and the second operating position corresponds to the second operating state of the cover portion 160. In particular, the winding member 163 is configured to generate an elastic force that causes the cover member 161 to wind around the winding member 163. That is, when the covering member 161 is not subjected to other external force, the covering member 161 is wound thereon by the elastic force generated by the winding member 163. The cover 160 is configured similar to a tambour door, the cover 161 is similar to the door body of a tambour door, and the coil 163 is similar to the spring support 110 of a tambour door that is positioned above.
To enable the cover 161 to be held in the first operating position, a catch member 162 may be attached to an end of the cover 161 remote from the winding member 163. When the covering member 161 is at the first working position, the hook member 162 is hooked on the holder 110 of the testing apparatus.
When the sensing portion 170 includes a pressure sensor, as shown in fig. 5, the hook member 162 may also hold the covering member 161 at the first operating position by hooking to the pressure sensor. And, when the hook 162 is hooked on the pressure sensor, since the winding member 163 has a pulling force to the covering member 161, the pulling force is converted into a pressure of the hook 162 to the pressure sensor, and the pressure just causes the pressure sensor to generate a covering signal.
The winding member 163 and the sensing part 170 may be disposed at opposite sides of the access opening 112, respectively. For example, the winding member 163 may be disposed above the access opening 112, and the sensing part 170 is disposed below the access opening 112; alternatively, the winding member 163 may be disposed on the left side of the access opening 112 (with reference to the orientation of the access opening 112 facing the drop test apparatus 100), and the sensor unit 170 may be disposed on the right side of the access opening 112 (the side opposite to the left side). In particular, when the pressure sensor is disposed on the ground below the drop test device 100, the hook member 162 of the covering member 161 also extends downward up to the position of the pressure sensor and hooks on the pressure sensor.
As shown in fig. 5, when the cover portion 160 is in the first operating state, the hook member 162 on the cover member 161 of the cover portion 160 hooks on the pressure sensor of the sensor portion 170. Since the winding member 163 has a pulling force on the covering portion 160, the pulling force is converted into a pressing force of the hook member 162 on the pressure sensor, so that the pressure sensor generates a covering signal. As shown in fig. 7, when the cover portion 160 is in the second operating state, the cover 161 is wound around the winding member 163, the object taking opening 112 of the drop test device 100 is opened, the pressure on the pressure sensor is removed, and the pressure sensor stops generating the pressure signal.
In order to make the operator clearly observe the working condition inside the holder 110 when the cover member 161 covers the access opening 112, the cover member 161 may be transparent. I.e. the cover 161 is made of a transparent flexible material. It should be noted that when the operator can observe the working condition inside the holder 110 through the cover 161, the cover 161 can be regarded as transparent. The term "transparent" does not imply that covering 161 is in a transparent state that is completely clear and colorless.
The embodiment also provides a drop test device 100, which can perform drop test on any product needing drop test. The drop test device 100 further comprises a protection component in any of the above embodiments, and the protection component is disposed at the object taking port 112 of the drop test instrument to reduce the safety risk of the object taking port 112.
The drop test device 100 may be specifically a mobile phone drop test device, and for convenience of description, the drop test device 100 is exemplified as the mobile phone drop test device. The drop test device 100 is used for drop testing of a mobile phone and comprises the protection component in any one of the embodiments. Specifically, the mobile phone drop test device further comprises a carrier assembly 140, a driving assembly 130 and a controller 120.
The handset to be tested is positioned on carrier assembly 140. Specifically, as shown, the carrier assembly 140 may include a suction cup 141, and the handpiece is drawn onto the suction cup 141. When the mobile phone needs to be released, the suction force of the suction cup 141 can be released, so that the mobile phone can fall freely.
The driving assembly 130 is configured to drive the loading assembly 140 to ascend or descend, and may include a driving cylinder connected to the loading assembly 140, and the loading assembly 140 moves up and down by the driving cylinder. The drive assembly 130 may also include a lead screw slider mechanism, with the slider being threadably coupled to the lead screw. The lead screw is vertically arranged, and when the lead screw rotates, the slide block moves up and down. The slider can be connected to the carrier assembly 140 so that the slider moves up and down as the lead screw rotates. Of course, drive assembly 130 may also include a belt drive mechanism or other mechanism capable of driving carrier assembly 140.
The controller 120 is used to control the driving state of the driving assembly 130, i.e., whether the driving assembly 130 drives the carrier assembly 140, and how to drive the carrier assembly 140, which are controlled by the controller 120. The covering signal generated by the sensing portion 170 of the protection component is transmitted to the controller 120, and the controller 120 controls the driving state of the driving component 130 according to the covering signal. Specifically, the controller 120 is configured to place the driving assembly 130 in a non-activated state when the cover signal is not received. When the controller 120 receives the covering signal, it indicates that the object taking port 112 is open, so there is a safety risk in activating the driving assembly 130, and the controller 120 controls the driving assembly 130 and makes it in the state that it cannot be activated means that the mobile phone drop test device cannot work when the user does not close the object taking port 112. When the controller 120 operates according to the above control logic, safety accidents can be well avoided.
When the operator mistakenly opens the covering member 161 and opens the object-taking opening 112 during the operation of the drop test apparatus 100, the pressure on the hook member 162 is removed due to the separation of the hook member 162 from the pressure sensor, and the sensing portion 170 also stops generating the covering signal. At this time, the controller 120 can immediately control the driving component 130 to be in a state where the driving component cannot continue to be driven when the covering signal is not received, so as to prevent subsequent safety accidents.
To further alert the operator, the mobile phone drop test device may also include an alarm (not shown). The alarm is used for alarming. The alarm device can specifically perform light alarm or voice alarm. The alarm is electrically connected to the controller 120 and is controlled by the controller 120. Wherein the sensing portion 170 is configured to generate an open signal when sensing that the covering portion 160 is not in the first working state. The controller 120 is configured to control the alarm to alarm if the controller 120 receives the open signal when the driving device is in the activated state. That is, when the cover portion 160 is found to be out of the first operating state while the driving device is performing the driving operation, the sensor portion 170 stops generating the cover signal and starts generating the open signal. After the controller 120 receives the opening signal, it controls the alarm to warn the operator.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A fender assembly for a drop test device having a take-off port, the fender assembly comprising:
the cover part is arranged on a bracket of the testing device, has a first working state and a second working state, and is configured to cover the object taking opening when in the first working state and open the object taking opening when in the second working state; and
the sensing part is used for sensing the working state of the covering part and is configured to generate a covering signal when sensing that the covering part is in the first working state;
the sensing portion comprises a pressure sensor configured to generate the cover signal when squeezed, the pressure sensor being disposed at a ground surface below the drop test device;
the cover portion is configured to compress the pressure sensor when in the first operating state.
2. The shield assembly of claim 1 wherein the cover portion comprises:
a winding member mounted to the bracket; and
a cover member including a free end and a fixed end, the fixed end being connected to the winding member, the cover member being configured to cover the object taking opening when the cover portion is in the first operating state, and to be wound around the winding member when the cover portion is in the second operating state, so that the object taking opening is opened;
wherein the winding member is configured to generate an elastic force that winds the covering member around the winding member.
3. The shield assembly of claim 2 wherein,
the sensing portion comprises a pressure sensor configured to generate the cover signal when squeezed, the pressure sensor being disposed at a ground surface below the drop test device;
the free end of the covering member is connected with a hook member for hooking the pressure sensor when the covering portion is in the first working state, so that the elastic force given to the covering member by the winding member is converted into pressure to the pressure sensor.
4. The shield assembly of claim 3 wherein,
the winding piece is arranged above the fetching opening;
the sensing part is installed on the support and arranged below the fetching opening.
5. The shield assembly of claim 2 wherein,
the covering member is transparent.
6. A drop test device is characterized in that,
comprising a protective component according to any one of claims 1 to 5.
7. The drop test apparatus of claim 6, further comprising:
an object carrying assembly in which an item to be tested is positioned;
the driving assembly is configured to drive the carrying assembly to ascend or descend; and
the controller is used for controlling the driving state of the driving assembly, and the covering signal is transmitted to the controller;
wherein the controller is configured to place the drive assembly in an unactuated state when the cover signal is not received.
8. The drop test apparatus of claim 7, further comprising:
the alarm is used for giving an alarm, is electrically connected with the controller and is controlled by the controller;
the sensing part is configured to generate an opening signal when sensing that the covering part is not in the first working state, and the controller is configured to control the alarm to give an alarm if receiving the opening signal when the driving device is in a starting state.
9. A mobile phone drop test device is characterized by comprising:
the protective component of any one of claims 1 to 5.
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CN202744835U (en) * | 2012-08-13 | 2013-02-20 | 南京乐金熊猫电器有限公司 | Washing machine with roller shutter door |
CN203894021U (en) * | 2014-05-16 | 2014-10-22 | 潘玉军 | Drop test device |
CN105628397A (en) * | 2016-02-03 | 2016-06-01 | 中国汽车技术研究中心 | Protection device and protection method for protecting dynamic impact equipment |
CN207472530U (en) * | 2017-11-01 | 2018-06-08 | 江苏天隆富信息技术有限公司 | A kind of drop test device for handset touch panel |
CN208206433U (en) * | 2018-05-21 | 2018-12-07 | 贵州中鼎宏信息科技有限公司 | A kind of safety product safety coefficient detection device |
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