CN213245446U - Sand and dust test equipment - Google Patents

Abstract

The embodiment of the utility model provides a testing mechanism, in particular to dust test equipment, this dust test equipment includes: the box body, the plurality of containers, at least one partition plate detachably arranged in the box body along a preset direction and air supply equipment; each partition plate divides the box body into a plurality of test cavities, the number of the test cavities is the same as that of the containers, the test cavities and the containers are uniquely corresponding, and each container is communicated with the uniquely corresponding test cavity; after the partition plate between any two adjacent test cavities is removed, the two adjacent test cavities are communicated with each other; the air supply equipment is used for conveying air into each container and stirring the sand and dust in each container. Compared with the prior art, not only can satisfy the test to the sand and dust performance of safety belt, the baffle between arbitrary two adjacent test chamber is demolishd the back moreover, can realize the intercommunication in these two adjacent test chambers, can place gas curtain and gasbag again, has satisfied the test requirement to the sand and dust performance of gas curtain or gasbag.

Description

Sand and dust test equipment

Technical Field

The embodiment of the utility model relates to a accredited testing organization, in particular to sand and dust test equipment.

Background

The safety belt, the air bag and the air curtain are used as basic protection devices for protecting drivers and passengers in the collision process of a vehicle in the driving process of the vehicle, and are important components of a vehicle safety system, so that the reliability test of the safety belt, the air bag and the air curtain has important significance for testing the safety performance of the safety belt, the air bag and the air curtain. Meanwhile, when the vehicle is used or parked, the safety belt motor is likely to be influenced by sand and dust in the environment. The sand dust can corrode and erode the surface of the motor product. The motor channel port and the filter can be blocked, and cracks, gaps, bearings, joints and sealing parts can be drilled, so that various harmful effects are caused; enabling the movable parts, mating parts to stick and jam (e.g., switch transfer failure, etc.); the contactor and the relay can not work to form a conductive bridge and generate short circuit, so that the function and the performance of a product are influenced.

Therefore, how to conveniently test the sand and dust performance of the safety belt, the air bag and the air curtain becomes important.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model aims at providing a sand and dust test equipment can simulate safety belt, gasbag and gas curtain and use operating mode under the sand and dust environment to can conveniently test the tensile properties of safety belt, and the sand and dust performance of safety belt, gasbag and gas curtain.

In order to achieve the above object, an embodiment of the present invention provides a sand testing apparatus, including:

a box body;

the containers are arranged along a preset direction and are respectively arranged at the bottom of the box body;

the at least one partition plate is detachably arranged in the box body along the preset direction, the box body is divided into a plurality of testing cavities, the number of the testing cavities is the same as that of the containers and uniquely corresponds to the containers, and each container is communicated with the uniquely corresponding testing cavity; after the partition plate between any two adjacent test cavities is removed, the two adjacent test cavities are communicated with each other;

the plurality of switch doors are arranged on the box body along the preset direction, the number of the switch doors is the same as that of the test cavities and is only corresponding to the test cavities, and any switch door is respectively used for opening or closing the only corresponding test cavity;

the gas supply equipment is connected with each container and is used for conveying gas into each container and stirring the sand and dust in each container;

the main control equipment is in communication connection with the gas supply equipment and is used for controlling the gas supply equipment to convey gas to one or more containers.

Additionally, the utility model discloses an embodiment still provides a safety belt tensile test mechanism, safety belt tensile test mechanism sets up in as above arbitrary one test chamber of dust test equipment, safety belt tensile test mechanism includes:

a test rack comprising: the device comprises an upper support frame, a lower support frame arranged opposite to the upper support frame, and at least one connecting column for connecting the upper support frame and the lower support frame;

the winding wheel mechanism is arranged on the upper support frame; the wind-up wheel mechanism includes: the winding wheels and the driving device are arranged on the upper support frame; the driving device is connected with each winding wheel and used for driving each winding wheel to synchronously rotate, and the driving device is also in communication connection with the main control equipment;

the guide mechanism is arranged on the lower support frame; the guide mechanism includes: the number of the guide shafts is the same as that of the winding wheels and is only corresponding to that of the winding wheels; each guide shaft and the only corresponding winding wheel are arranged opposite to each other, and the axial direction of each guide shaft is parallel to the axial direction of the only corresponding winding wheel.

Compared with the prior art, because being separated by the polylith baffle in the box, form a plurality of test chamber, every test chamber communicates each other with the only each container that corresponds of bottom half again simultaneously, and each container all is connected with air feeder again simultaneously for air feeder can be to conveying gas in one or more container, thereby can stir the dust and sand in the corresponding container, in order to reach the raise dust effect at corresponding test intracavity. When practical application, the single test chamber can simulate the operating mode of safety belt or air bag under the sand and dust environment, and after the baffle between arbitrary two adjacent test chambers was demolishd, can realize the intercommunication in these two adjacent test chambers again, therefore the staff can suitably demolish one or polylith baffle according to the length of gas curtain again, in order to realize placing of gas curtain in the box, thereby can simulate the operating mode of gas curtain under the sand and dust environment, consequently can be convenient to the safety belt, gasbag and the performance of gas curtain under the sand and dust environment test.

Further, the box includes: a top plate, a bottom plate opposite to the top plate;

along the preset direction, a plurality of top sliding grooves are formed in one side, opposite to the bottom plate, of the top plate, and a plurality of bottom sliding grooves are formed in one side, opposite to the top plate, of the bottom plate; the number of the top chutes and the number of the bottom chutes are the same as the number of the partition plates and are only corresponding to the number of the top chutes and the bottom chutes;

and a clamping part which can be slid in by the partition plate is formed between each top sliding chute and the only corresponding bottom sliding chute.

Further, the box is followed arbitrary one side of default direction is the unclosed formation opening, dust test equipment still includes: movably set up with side door on the box, the side door is used for opening or seals the opening.

Furthermore, each container is a conical funnel, and an opening of each conical funnel is opposite to the only corresponding testing cavity.

Further, the sand and dust test equipment further comprises: and the vibration motors are respectively arranged on the containers.

Furthermore, each switch door is provided with a transparent window.

Further, the sand and dust test equipment further comprises: the limit switches are respectively arranged on the switch doors and are in communication connection with the main control equipment;

when any switch door is opened to the only corresponding test cavity, the limit switch on the switch door is triggered and sends an alarm signal to the main control equipment.

Further, the gas supply apparatus includes: the device comprises a vacuumizing device, an air inlet pipeline assembly connected with the vacuumizing device and a plurality of air outlet pipeline assemblies connected with the air inlet pipeline assembly;

the number of the air outlet pipeline components is the same as that of the containers and is uniquely corresponding to the containers, and each air outlet pipeline component is connected with the uniquely corresponding container;

the vacuumizing device, the air inlet pipeline assembly and the air outlet pipeline assemblies are all in communication connection with the main control equipment.

Further, the intake pipe assembly includes:

the main pressure regulating valve is connected with the air outlet end of the vacuumizing device;

the air inlet main pipe is connected with the air outlet end of the main pressure regulating valve;

each go out the gas piping subassembly and all include:

the air outlet pipeline is respectively connected with the air inlet main pipe and the container which only corresponds to the air inlet main pipe;

the pressure sensor is arranged on the air outlet pipeline and used for detecting the air inlet pressure;

the pressure regulating valve is arranged on the air outlet pipeline and is used for regulating the air pressure in the air outlet pipeline;

the electromagnetic valve is arranged on the air outlet pipeline and used for conducting or cutting off the air outlet pipeline;

the main pressure regulating valve, the pressure sensors, the pressure regulating valves and the electromagnetic valves are in communication connection with the main control equipment.

Further, the dust test apparatus includes:

the pressure relief pipes are arranged on the box body along the preset direction; the number of the pressure relief pipes is the same as that of the test cavities and is only corresponding to that of the test cavities; each pressure relief pipe is communicated with the corresponding test cavity;

a plurality of filters; the number of the filters is the same as that of the pressure relief pipes and is only corresponding to that of the pressure relief pipes; each filter is arranged on each uniquely corresponding pressure relief pipe.

Drawings

Fig. 1 is a schematic structural view of a sand and dust test apparatus according to a first embodiment of the present invention;

FIG. 2 is a schematic side view of FIG. 1;

fig. 3 is a schematic structural view of the connection of the gas supply device and each container according to the first embodiment of the present invention;

FIG. 4 is a schematic front view of FIG. 1;

fig. 5 is a block diagram of a pipeline module of a gas supply apparatus according to a first embodiment of the present invention;

fig. 6 is a block diagram of a circuit module of a sand and dust testing apparatus according to a first embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

The first embodiment of the present invention relates to a sand and dust test apparatus, as shown in fig. 1 and 3, including: the container comprises a box body 10 and a plurality of containers 20, wherein the containers 20 are arranged along a preset direction and are respectively arranged at the bottom of the box body 10.

Next, as shown in fig. 1 and 4, the sand and dust testing apparatus of the present embodiment further includes: at least one partition plate 30, each partition plate 30 being detachably disposed in the housing 10 along a predetermined direction and dividing the housing 10 into a plurality of test chambers 105. The number of test chambers 105 is the same as the number of containers 20 and uniquely corresponds to the number of containers 20, and each container 20 is in communication with a uniquely corresponding test chamber 105. After the partition plate 30 between any two adjacent test chambers 105 is removed, the two adjacent test chambers 105 communicate with each other.

In addition, as shown in fig. 1, the sand and dust test equipment of the present embodiment further includes: the plurality of switch doors 40 are arranged on the box body 10 along a preset direction, the number of the switch doors 40 is the same as that of the test cavities 105 and is only corresponding to the test cavities 105, and any switch door 40 is used for opening or closing the only corresponding test cavity 105.

Further, as shown in fig. 1, the sand dust test equipment of the present embodiment further includes: and a gas supply device 50 connected to each container 20, the gas supply device 50 being configured to supply a gas into each container 20 to stir the dust in each container 20.

Finally, as shown in fig. 2 and 6, the sand dust test apparatus of the present embodiment further includes: and the main control equipment is in communication connection with the gas supply equipment and is used for controlling the gas supply equipment to deliver gas to one or more containers.

It can be seen from the above that, since the interior of the box 10 is partitioned by the partitions 30 to form a plurality of test chambers 105, and each test chamber 105 is communicated with each container 20 uniquely corresponding to the bottom of the box 10, and each container 20 is connected to the gas supply device 50, the gas supply device 50 can supply gas to one or more containers 20, so as to stir the sand and dust in the corresponding container 20, thereby achieving the dust raising effect in the corresponding test chamber 105. In practical application, a single test chamber 105 can simulate the use condition of a safety belt or an air bag in a sand and dust environment, and after the partition plate 30 between any two adjacent test chambers 105 is removed, the communication of the two adjacent test chambers 105 can be realized, so that a worker can suitably remove one or more partition plates 30 according to the length of the air curtain, the placement of the air curtain in the box body 10 is realized, the use condition of the air curtain in the sand and dust environment can be simulated, and the performance of the safety belt, the air bag and the air curtain in the sand and dust environment can be conveniently tested.

Specifically, in the present embodiment, as shown in fig. 1, the case 10 includes: a top plate 101, a bottom plate 102 opposite to the top plate 101, a first side plate 103 and a second side plate 104 connecting the top plate 101 and the bottom plate 102. In the predetermined direction, a side of the top plate 101 opposite to the bottom plate 102 is opened with a plurality of top chutes (not shown), and a side of the bottom plate 102 opposite to the top plate 101 is opened with a plurality of bottom chutes (not shown). The number of the top chutes and the bottom chutes is the same as that of the partition boards 30, and the top chutes and the bottom chutes are only corresponding to each other. And a clamping portion (not labeled in the figure) which can be slid in by the partition board 30 is formed between each top sliding chute and the corresponding bottom sliding chute. In actual use, the partition plate 30 may be attached to the top plate 101 and the bottom plate 102 in other manners, and in the present embodiment, the attachment manner between the partition plate 30 and the top plate 101 and the bottom plate 102 is not limited.

In addition, as shown in fig. 1, in the present embodiment, each of the switch doors 40 is rotatably disposed on the casing 10, for example, in a hinged manner, so that each of the switch doors 40 can open or close only one corresponding test chamber 105. Furthermore, the sand and dust test equipment of the present embodiment further includes: limit switches (not shown) respectively disposed on the switch doors 40, and each limit switch (not shown) is in communication connection with the main control device. When any switch door 40 opens the only corresponding test cavity 105, the limit switch on the switch door 40 is triggered and sends an alarm signal to the main control equipment. Therefore, it is easy to see that the staff can judge whether the corresponding test cavity 105 is closed through the alarm signal received by the main control device, so as to prevent the test cavity 105 from being closed in a leakage manner.

Further, as shown in fig. 2, the sand and dust testing apparatus according to the present embodiment further includes: the vibration motors 60 are disposed on the containers 20, and in the present embodiment, each vibration motor 60 is in communication with a main control device, so that the main control device can control the on and off of each vibration motor 60. Therefore, after the corresponding test chamber 105 completes the test of the sand and dust performance of the safety belt, the airbag or the air curtain, the corresponding vibration motor 60 can be started through the main control device, so that the corresponding container 20 can rapidly drop the sand and dust to the bottom of the container 20 under the vibration of the vibration motor 60, and the collection of the sand and dust can be realized. In addition, in order to prevent the sand and dust from adhering to the wall surface of the container 20, as shown in fig. 1, fig. 2 and fig. 3, the container 20 used in this embodiment is a conical funnel, and an opening (not shown) of the conical funnel faces the testing area 41 of the box 4, so that the aperture of the opening of the container 20 can be kept unchanged, and therefore, when the air supply device 50 delivers air into the conical funnel, the dust raising effect of the container 20 is not affected, and after the sand and dust test of the safety belt, the airbag or the air curtain is completed, the rapid collection of the sand and dust in the container 20 can be realized by means of the structure of the conical funnel of the container 20 and the vibration effect of the vibration motor 60, thereby improving the efficiency of the sand and dust test.

In addition, as a preferable mode, in the present embodiment, as shown in fig. 1, an opening (not shown) is formed on either side of the box 10 in the predetermined direction, that is, the opening may be opened on the first side plate 103 or may be opened on the second side plate 104, and in the present embodiment, the opening is opened on the second side plate 104 as an example. Meanwhile, as shown in fig. 1 and 4, the sand dust test apparatus of the present embodiment further includes: a side door 70 movably disposed on the box body 10, wherein the side door 70 is disposed on the second side plate 104 and can be used for opening or closing the opening. From this it is difficult to see that, when carrying out the test of sand and dust performance to this kind of longer product of air curtain, through with the help of the opening, can directly fill in the box 10 with the air curtain from the tip of box 10 in to avoid when placing the air curtain, box 10 is to its interference that causes, thereby can further make things convenient for the placing of air curtain in box 10.

In the present embodiment, in order to allow the gas supply device 50 to supply gas to each of the containers 20, as shown in fig. 2, 3, and 5, the gas supply device 50 includes: the device comprises a vacuum extractor (not shown), an air inlet pipeline assembly 501 connected with the vacuum extractor, and a plurality of air outlet pipeline assemblies 502 connected with the air inlet pipeline assembly 501. Moreover, the number of the outlet pipeline assemblies 502 is the same as that of the containers 20 and is uniquely corresponding to the containers 20, and each outlet pipeline assembly 502 is connected with the uniquely corresponding container 20. In addition, as shown in fig. 2, the vacuum pumping device, the air inlet pipeline assembly 501 and each air outlet pipeline assembly 502 are all connected to the main control device in a communication manner.

Specifically, in the present embodiment, as shown in fig. 2, 3 and 5, the evacuation device employs a vacuum pump, and the intake pipe assembly 501 includes: the vacuum pump comprises a main pressure regulating valve 5011 connected with an air outlet end of the vacuumizing device and an air inlet main pipe 5012 connected with an air outlet end of the main pressure regulating valve 5011. Next, as shown in fig. 2, 3 and 5, each of the outlet pipe assemblies 502 includes: the pressure regulating device comprises an air outlet nozzle 5025 arranged on a container 20, an air outlet pipeline 5021 respectively connected with an air inlet manifold 5012 and the air outlet nozzle 5025 on the container 20 which is only corresponding to the air inlet manifold, a pressure sensor 5022 arranged on the air outlet pipeline 5021, a pressure regulating valve 5023 and a solenoid valve 5024. Among them, the pressure sensor 5022 is used to detect the intake pressure, the pressure regulating valve 5023 is used to regulate the air pressure in the air outlet pipe 5021, the solenoid valve 5024 is used to open or close the air outlet pipe 5021, and, as shown in fig. 6, the main pressure regulating valve 5011, each pressure sensor 5022, each pressure regulating valve 5023, and each solenoid valve 5024 are all in communication connection with the main control device. In practical application, the master control device can preset the vacuumizing pressure, the running time, the running period and the waiting time between every two running periods of each air outlet pipeline assembly 502, and during testing, the master control device can directly control the main pressure regulating valve 5011, each pressure regulating valve 5023 and each electromagnetic valve 5024 according to the set parameters by acquiring the pressure values detected by each pressure sensor 5024, so that the performance test of a safety belt, a safety airbag and an air curtain in a sand-dust environment can be automatically completed.

In addition, in order to further improve the dust raising effect in each test chamber 105, as shown in fig. 2 and 3, the gas outlet nozzle 5025 may be disposed at the bottom of the container 20, so that the gas outlet nozzle 5025 can deliver gas from the bottom of the container 20 into the container 20, thereby achieving sufficient stirring of the sand and dust in the container 20. Meanwhile, in order to avoid the internal pressure of the test chamber 105 from being too high during the test, the dust test chamber of the present embodiment further includes: set up the pressure release pipe 80 on box 10 respectively, each pressure release pipe 80 communicates with each test chamber 20 respectively, and in addition, the sand and dust proof test box of this embodiment still includes: and a filter 90 provided to each of the pressure release pipes 80. Each pressure relief pipe 80 is used for relieving the pressure inside each test cavity 105 which is uniquely corresponding to the pressure relief pipe, so that the box body 4 is prevented from being damaged due to overlarge internal pressure of the test cavity 105, and meanwhile, the filter 90 can prevent sand and dust from escaping from the pressure relief pipes 80 to the outside of the box body 10 to pollute the environment.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims (10)

1. A dust test apparatus, comprising:

a box body;

the containers are arranged along a preset direction and are respectively arranged at the bottom of the box body;

the at least one partition plate is detachably arranged in the box body along the preset direction, the box body is divided into a plurality of testing cavities, the number of the testing cavities is the same as that of the containers and uniquely corresponds to the containers, and each container is communicated with the uniquely corresponding testing cavity; after the partition plate between any two adjacent test cavities is removed, the two adjacent test cavities are communicated with each other;

the plurality of switch doors are arranged on the box body along the preset direction, the number of the switch doors is the same as that of the test cavities and is only corresponding to the test cavities, and any switch door is respectively used for opening or closing the only corresponding test cavity;

the gas supply equipment is connected with each container and is used for conveying gas into each container and stirring the sand and dust in each container;

the main control equipment is in communication connection with the gas supply equipment and is used for controlling the gas supply equipment to convey gas to one or more containers.

2. A dust testing apparatus according to claim 1, wherein the housing includes: a top plate, a bottom plate opposite to the top plate;

along the preset direction, a plurality of top sliding grooves are formed in one side, opposite to the bottom plate, of the top plate, and a plurality of bottom sliding grooves are formed in one side, opposite to the top plate, of the bottom plate; the number of the top chutes and the number of the bottom chutes are the same as the number of the partition plates and are only corresponding to the number of the top chutes and the bottom chutes;

and a clamping part which can be slid in by the partition plate is formed between each top sliding chute and the only corresponding bottom sliding chute.

3. A dust testing apparatus according to claim 1, wherein either side of said housing in said predetermined direction is open without being closed, said dust testing apparatus further comprising: movably set up in side door on the box, the side door is used for opening or seals the opening.

4. A dust testing apparatus according to claim 1, wherein each said container is a conical funnel, the opening of each said conical funnel facing a unique corresponding said test chamber.

5. The dust test apparatus of claim 1, further comprising: and the vibration motors are respectively arranged on the containers.

6. A dust and sand testing apparatus as claimed in claim 1, wherein each of said switch doors is provided with a transparent window.

7. The dust test apparatus of claim 1, further comprising: the limit switches are respectively arranged on the switch doors and are in communication connection with the main control equipment;

when any switch door is opened to the only corresponding test cavity, the limit switch on the switch door is triggered and sends an alarm signal to the main control equipment.

8. A dust testing apparatus according to claim 1, characterised in that the air supply apparatus comprises: the device comprises a vacuumizing device, an air inlet pipeline assembly connected with the vacuumizing device and a plurality of air outlet pipeline assemblies connected with the air inlet pipeline assembly;

the number of the air outlet pipeline components is the same as that of the containers and is uniquely corresponding to the containers, and each air outlet pipeline component is connected with the uniquely corresponding container;

the vacuumizing device, the air inlet pipeline assembly and the air outlet pipeline assemblies are all in communication connection with the main control equipment.

9. The dust testing apparatus of claim 8, wherein said air inlet conduit assembly comprises:

the main pressure regulating valve is connected with the air outlet end of the vacuumizing device;

the air inlet main pipe is connected with the air outlet end of the main pressure regulating valve;

each go out the gas piping subassembly and all include:

the air outlet pipeline is respectively connected with the air inlet main pipe and the container which only corresponds to the air inlet main pipe;

the pressure sensor is arranged on the air outlet pipeline and used for detecting the air inlet pressure;

the pressure regulating valve is arranged on the air outlet pipeline and is used for regulating the air pressure in the air outlet pipeline;

the electromagnetic valve is arranged on the air outlet pipeline and used for conducting or cutting off the air outlet pipeline;

the main pressure regulating valve, the pressure sensors, the pressure regulating valves and the electromagnetic valves are in communication connection with the main control equipment.

10. A dust testing apparatus according to any of claims 1-9, characterized in that it comprises:

the pressure relief pipes are arranged on the box body along the preset direction; the number of the pressure relief pipes is the same as that of the test cavities and is only corresponding to that of the test cavities; each pressure relief pipe is communicated with the corresponding test cavity;

a plurality of filters; the number of the filters is the same as that of the pressure relief pipes and is only corresponding to that of the pressure relief pipes; each filter is arranged on each uniquely corresponding pressure relief pipe.

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