CN218496385U

CN218496385U - Key test equipment

Info

Publication number: CN218496385U
Application number: CN202221116437.8U
Authority: CN
Inventors: 王建; 罗建华; 袁爱进
Original assignee: Shanghai Huaxing Digital Technology Co Ltd
Current assignee: Shanghai Huaxing Digital Technology Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2023-02-17
Anticipated expiration: 2032-04-29

Abstract

The utility model relates to the technical field of key test, and provides a key test device, which comprises a closed cavity, a pressing component, a driving component and a dust blowing component, wherein a carrier for supporting an object to be tested is arranged in the closed cavity; the pressing assembly is movably arranged in the closed cavity; the driving component is used for driving the pressing component to press the article to be detected; the dust blowing assembly is used for forming airflow in the closed cavity so that dust arranged in the closed cavity is suspended in the space of the closed cavity. The key test equipment can restore the field working condition to the maximum extent in a laboratory, is favorable for improving the comprehensiveness of the test, is simple to operate, can be quickly realized by utilizing the existing laboratory condition, and is convenient to popularize to test all switches in the industry.

Description

Key test equipment

Technical Field

The utility model relates to a button test technical field especially relates to a button test equipment.

Background

With the development of the engineering machinery industry, more and more automobile parts are introduced to the cab of the engineering machinery to improve the technological sense and the operation comfort of the cab. One-key starting switches are applied more frequently, and although the functions of the switches are simple, due to the important function of the switches in a driving system, the functional stability, the service life and the environmental adaptability of the switches are very important, and related performance tests are also a great challenge for the industry.

The conventional test of the switch product is the test of the key function and the key service life, various complex working conditions in the actual use process of the product cannot be completely covered, and the test result is not comprehensive enough. From actual after-market data, the after-market problem of one-touch activation switches is largely related to the dust environment, in addition to the device lifetime problem. The actual working environment of the engineering machinery is a dusty environment, and the problems of dust entering of a switch, blockage of a microswitch, silicon pollution of the microswitch and the like can often occur. And the conventional test method or equipment in a laboratory cannot cover the dust environment on the spot, so that the test result of the switch product is incomplete.

SUMMERY OF THE UTILITY MODEL

The utility model provides a button test equipment for the conventional test method or the unable on-the-spot dust environment that covers of equipment and lead to the incomplete defect of test result of switch product among the solution prior art laboratory.

The utility model provides a button test equipment, include:

the device comprises a closed cavity, a detection device and a control device, wherein a carrier for supporting an object to be detected is arranged in the closed cavity;

the pressing assembly is movably arranged in the closed cavity;

the driving component is used for driving the pressing component to press the object to be detected;

and the dust blowing assembly is used for forming airflow in the closed cavity so as to suspend dust arranged in the closed cavity in the space of the closed cavity.

According to the utility model provides a pair of button test equipment still includes:

the detection element is used for detecting whether the pressing assembly presses on the article to be detected;

a control unit electrically connected with the detection element and the driving assembly; wherein, the first and the second end of the pipe are connected with each other,

the control unit controls the driving component to act based on the detection signal of the detection element so as to drive the pressing component to press or keep away from the article to be detected.

and the counter is used for recording the pressing times of the pressing component and is electrically connected with the detection element.

According to the utility model provides a pair of button test equipment, be provided with the exhaust hole on the chamber wall of airtight cavity, the exhaust hole with airtight cavity intercommunication, just exhaust hole department is provided with the filtration piece that is used for filtering the dust.

According to the utility model provides a pair of button test equipment, drive assembly includes driving piece and driving medium, the driving piece sets up outside the airtight cavity, the driving piece passes through the driving medium with press the subassembly transmission and connect.

According to the utility model provides a button test equipment, still include the air supply, the driving piece is the cylinder, blow the dirt subassembly and include with the airtight cavity intercommunication blow the dirt trachea; the air source supplies air to the air cylinder and the dust blowing air pipe.

According to the utility model provides a pair of button test equipment, the driving piece is the motor, the driving medium is one of cam mechanism, rack and pinion mechanism, ball mechanism.

the control unit is electrically connected with the limit switch assembly, and limits the stroke of the pressing assembly based on the trigger signal of the limit switch assembly.

According to the utility model provides a pair of button test equipment, be provided with on the chamber wall of airtight cavity and be used for the confession the through wires hole that the power cord of the article that awaits measuring passed.

According to the utility model provides a pair of button test equipment, detecting element is pressure sensor.

The utility model provides a button test equipment, can make the interior space of airtight cavity form the dust environment through blowing the dirt subassembly during the test, make the whole airtight cavity indoor full of the dust; the pressing assembly is integrally arranged in the closed cavity, so that the whole process of the test process of the object to be tested is in a dust environment; and can drive through drive assembly and press the subassembly and carry out reciprocal the pressing to the article that await measuring to can realize the durable press test to the article that await measuring in the environment of high dust. The key test equipment can restore the field working condition to the maximum extent in a laboratory, is favorable for improving the comprehensiveness of the test, is simple to operate, can be quickly realized by utilizing the existing environmental laboratory condition, and is convenient to popularize for testing all switches in the industry.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, 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 key testing device provided by the present invention;

fig. 2 is a second perspective view of the key testing device provided by the present invention;

fig. 3 is a left side view of the key testing device provided by the present invention (hiding the left side wall of the closed chamber);

fig. 4 is one of the front views (hiding the front side wall of the closed chamber) of the key testing device provided by the present invention;

fig. 5 is a second front view (hiding the left side wall of the closed chamber) of the key testing device provided by the present invention.

Reference numerals:

1: closing the chamber; 2: a carrier; 3: a pressing plate; 4: a cylinder; 5: a transmission push rod;

6: an air inlet; 7: a first limit switch; 8: a second limit switch; 9: the adjustable pressing rod;

10: an exhaust hole; 11: a threading hole; 12: a counter; 13: a control unit;

14: a counter zero clearing switch; 15: a control switch; 16: a fixed seat; 17: a chute; 18: connecting columns; 19: a handle; 20: a shield.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The key test device of the present invention is described below with reference to fig. 1 to 5.

As shown in figure 1, the utility model provides a pair of button test equipment, including airtight cavity 1, press the subassembly, drive assembly and blow the dirt subassembly.

The dust blowing assembly is used for forming air flow in the closed cavity 1 so that dust arranged in the closed cavity 1 is suspended in the space of the closed cavity, and therefore the dust working condition can be simply and quickly reproduced, the object to be tested can be located in a dust environment, and the object to be tested can be tested in the dust environment.

Here, dust may be provided in the hermetic chamber 1 so that the space in the hermetic chamber 1 forms a dust environment.

The pressing component is movably arranged in the closed chamber 1 and is used for pressing the object to be tested so as to realize the pressing test of the object to be tested. In addition, the driving assembly is used for driving the pressing assembly to press the object to be tested, so that the object to be tested can be pressed for multiple times, and the pressing test of the object to be tested is realized.

In addition, the driving assembly can be arranged outside the closed cavity 1, so that dust in the closed cavity 1 is prevented from being accumulated on the driving assembly to influence the action smoothness and the service life of the driving assembly, and the accuracy of testing of the object to be tested is improved.

By the arrangement, a dust environment can be formed in the space in the closed chamber 1 by the dust blowing assembly during the test period, so that the whole closed chamber 1 is filled with dust; the whole pressing component is arranged in the closed chamber 1, so that the whole process of the test process of the object to be tested is in a dust environment; and can drive through drive assembly and press the subassembly and carry out reciprocal the pressing to the article that await measuring to can realize the durable press test to the article that await measuring in the environment of high dust. The key test equipment can restore the field working condition to the maximum extent in a laboratory, is favorable for improving the comprehensiveness of the test, is simple to operate, can be quickly realized by utilizing the existing environmental laboratory condition, and is convenient to popularize for testing all switches in the industry.

The utility model discloses an in the optional embodiment, this button test equipment still includes detecting element and the control unit 13, and detecting element is used for detecting whether pressing the subassembly and pressing on the article that await measuring, and the control unit 13 is connected with detecting element and drive assembly electricity to, the control unit 13 can press the subassembly to press or keep away from the article that await measuring with the drive based on detecting element's detection signal control drive assembly action, with the drive. Therefore, the object to be detected can be automatically pressed for multiple times.

In an alternative embodiment, the detecting element may be a pressure sensor (not shown), and when the pressure sensor senses the pressure, the pressing component presses on the object to be detected. The control unit 13 can acquire signals of the pressure sensor in real time, and when the control unit 13 receives the pressure signals of the pressure sensor, the driving assembly is controlled to drive the pressing assembly to be far away from the object to be detected; when the control unit 13 does not receive the pressure signal of the pressure sensor (or receives a signal that the pressure value detected by the pressure sensor is zero), the driving component is controlled to drive the pressing component to press the object to be detected.

Here, the pressure sensor may be disposed on the carrier 2, or the pressure sensor may be disposed on the object to be detected, or other positions where the object to be detected is pressed by the pressing component, which may be specifically set according to actual situations.

In an alternative embodiment, the key test device further includes a counter 12, the counter 12 is used for recording the number of times of pressing the pressing assembly, and the counter 12 is electrically connected to the detection element, the detection element is triggered once, and the counter 12 is incremented by one, that is, the number of times of triggering the detection element is the number of times of pressing.

Also, the counter 12 may be electrically connected to the control unit 13.

Specifically, the counter 12 includes a numerical value input module, a preset pressing frequency value can be set in the control unit 13 through the numerical value input module, and when the pressing frequency measured by the counter 12 reaches the preset pressing frequency value, the control unit 13 drives the component to stop moving based on the measurement signal of the counter 12, so that the pressing component stops moving, and thus the pressing component does not press the object to be detected any more.

Here, when the pressing times measured by the counter 12 do not reach the preset value of the pressing times, the article to be measured cannot work normally, that is, the article to be measured is damaged, which indicates that the article to be measured is an unqualified product; when the pressing times measured by the counter 12 reach the preset value of the pressing times, the article to be detected can still work normally, and the article to be detected is a qualified product.

In this embodiment, the key test device further includes a counter clear switch 14, the counter clear switch 14 may be disposed on the cavity wall of the sealed chamber 1, and the counter clear switch 14 is electrically connected to the counter 12. Thus, the next object to be tested can be tested conveniently.

The utility model discloses an in the optional embodiment, this button test equipment still includes the limit switch subassembly, and the control unit is connected with the limit switch subassembly electricity to the control unit can be based on the stroke that the subassembly was pressed in limit switch subassembly's trigger signal restriction.

Specifically, the limit switch assembly includes a first limit switch 7 and a second limit switch 8, the first limit switch 7 and the second limit switch 8 may be disposed on a moving path of the pressing assembly, and both the first limit switch 7 and the second limit switch 8 may be in contact with the pressing assembly so as to detect a position of the pressing assembly. The second limit switch 8 may be disposed above the first limit switch 7, and the distance between the first limit switch 7 and the second limit switch 8 is the stroke of the pressing assembly.

In this embodiment, the first limit switch 7 may be disposed near the carrier 2 or on the carrier 2 to ensure that the pressing component can press the object to be tested.

In an alternative embodiment, the pressing assembly may include a pressing plate 3 and an adjustable pressing bar 9, the pressing plate 3 is used for pressing the object to be tested, the adjustable pressing bar 9 is vertically connected with the pressing plate 3, and the adjustable pressing bar 9 can be contacted with the first limit switch 7 and the second limit switch 8. When the pressing component presses the object to be detected, the adjustable pressing rod 9 is in contact with the first limit switch 7, so that the first limit switch 7 is triggered; when the pressing component moves to the position where the pressure-adjustable rod 9 is in contact with the second limit switch 8, the driving component drives the pressing component to move towards the direction close to the carrier 2, so that the first limit switch 7 and the second limit switch 8 are matched with each other to limit the moving stroke of the pressing component.

In this embodiment, the carrier 2 is parallel to the top wall of the closed chamber 1, and the object to be tested can be placed on the upper surface of the carrier 2; and carrier 2 can be through many spliced poles 18 and the roof fixed connection of airtight chamber 1, presses the subassembly and can be located the space that many spliced poles 18 enclose to in pressing the article that await measuring.

Here, the second limit switch 8 may be disposed on the connection column 18, or the second limit switch 8 may be connected with the connection column 18 through a fixing plate; alternatively, the second limit switch 8 may be provided inside the top wall of the hermetic chamber 1.

In the utility model discloses an optional embodiment, the drive assembly includes driving piece and driving medium, and the driving piece setting is outside airtight cavity 1, and the driving piece passes through the driving medium and presses the subassembly transmission to be connected, press the subassembly with the drive and press or keep away from the article that awaits measuring.

In an alternative embodiment, the driving member may be an expansion member, the driving member may be a transmission push rod 5, one end of the transmission push rod 5 is in transmission connection with the expansion end of the expansion member, and one end of the transmission push rod 5 extends into the sealed chamber 1 to be in transmission connection with the pressing assembly. Like this, connect the extensible member and press the subassembly through the transmission of transmission push rod 5 transmission, can make drive assembly not receive the influence of dust basically, be favorable to improving the smoothness nature of pressing the subassembly action to improve drive assembly's life.

Here, the telescopic member may be a pneumatic or hydraulic cylinder or an electric push rod or other telescopic member.

In an alternative embodiment, the driving member may be a cylinder 4, and the dust blowing assembly may include a dust blowing air pipe, which is communicated with the closed chamber 1 to blow air into the closed chamber 1 to suspend dust in the space of the closed chamber 1.

And blow the dirt subassembly still including setting up the inlet port 6 on the chamber wall of airtight chamber 1, inlet port 6 and airtight chamber 1 and blow the dirt trachea intercommunication to gaseous entering airtight chamber 1 is inside, thereby realizes blowing the dirt.

Here, filter cotton may be provided in the air inlet hole 6 to prevent dust in the closed chamber 1 from leaking out of the air inlet hole 6.

The key testing equipment also comprises an air source which supplies air for the air cylinder 4 and the dust blowing air pipe. Like this, cylinder 4 and blow the dirt trachea and can share an air supply, can realize a gas dual-purpose, are favorable to simplifying this button test equipment's structure, are convenient for realize in the laboratory, are favorable to promoting the efficiency of software testing of awaiting measuring article, and the maintenance cost is low.

Specifically, the air source is communicated with the air cylinder 4 and an air inlet of the dust blowing air pipe through an air inlet pipe, namely the air inlet pipe is divided into two air pipes, and one air pipe is communicated with the air inlet of the air cylinder 4 to provide power for the air cylinder 4 so that the air cylinder 4 drives the pressing assembly to act and press the object to be tested; the other air pipe is communicated with an air inlet of the dust blowing air pipe to blow air into the closed chamber 1, so that dust in the closed chamber 1 is blown up, the dust raising effect is realized, and a dust environment is formed in the closed chamber 1.

In another optional embodiment, the driving element may be a motor, the transmission element may be one of a cam mechanism, a rack and pinion mechanism, and a ball screw mechanism, or the transmission element may be another mechanism capable of achieving linear movement, and specifically, the structure of the transmission element is not limited, and only linear movement needs to be achieved.

In alternative embodiments, the dust blowing assembly may be a blower or fan disposed within the enclosed chamber 1, or other means capable of blowing air.

The utility model discloses an in the optional embodiment, be provided with through wires hole 11 on the chamber wall of airtight cavity 1, through wires hole 11 and airtight cavity 1 intercommunication to through wires hole 11 is used for supplying to be located the power cord of the article that awaits measuring in airtight cavity 1 and passes. Therefore, the article to be tested can be conveniently connected with the power, the article to be tested can be tested in an electrified mode, the product state of the article to be tested can be monitored in real time in the process of testing the article to be tested, the failure limit of the article to be tested can be accurately tested, and the accuracy of the test is improved.

In this embodiment, the threading hole 11 and the power line of the object to be tested are sealed to avoid the dust in the sealed chamber 1 leaking out from the threading hole 11 and affecting the testing effect.

Specifically, a sealing ring can be arranged in the threading hole 11, and the inner diameter of the sealing ring is smaller than or equal to the diameter of a power line of the object to be detected. Here, the sealing ring may be a rubber ring.

Or the aperture of the threading hole 11 can be matched with the diameter of the power line, so that no gap exists between the hole wall of the threading hole 11 and the power line.

In an alternative embodiment, the control unit 13 may also be electrically connected to an air outlet valve of the air source so as to control the air outlet amount of the air source.

In this embodiment, the key test device further includes a control switch 15, the control switch 15 may be disposed on the wall of the closed chamber 1, and the control switch 15 may be electrically connected to the control unit 13. The control switch 15 is started, so that the test equipment can automatically start to test the object to be tested, namely the control unit 13 controls the driving assembly to drive the pressing assembly to act and the dust blowing assembly to blow dust; the control switch 15 is turned off, so that the test equipment stops testing the object to be tested, that is, the control unit 13 controls the driving assembly to stop driving the pressing assembly to act, and the dust blowing assembly to stop blowing dust.

In the optional embodiment of the present invention, the cavity wall of the closed cavity 1 is provided with an exhaust hole 10, and the exhaust hole 10 is communicated with the closed cavity 1. Thus, the air pressure inside and outside the sealed chamber 1 can be balanced by the air vent hole 10, thereby ensuring the pressure inside the sealed chamber 1 to be stable.

And, the exhaust hole 10 is provided with a filtering member for filtering dust, and the filtering member can prevent the dust in the closed chamber 1 from leaking out through the exhaust hole 10. Therefore, the dust effect in the closed chamber 1 is ensured, and the problems that the test result of an object to be tested is not accurate due to dust leakage, the health of an operator is influenced, the test environment is influenced and the like are avoided.

Here, the filter member may be filter cotton, or other filter member capable of filtering dust.

The utility model discloses an in the optional embodiment, this button test equipment still includes height adjusting assembly, and height adjusting assembly is used for adjusting drive assembly's height to can adjust the action stroke of pressing the subassembly, so that this button test equipment can test the article that await measuring of unidimensional not.

Here, the height adjusting assembly may be provided on the top wall of the hermetic chamber 1.

Specifically, the height adjustment assembly may include a holder 16, a slider, and a lock for locking the holder 16 and the slider. Wherein, be provided with on the fixing base 16 along the spout 17 of vertical direction extension, the slider is located spout 17, and the slider can move along spout 17 to drive assembly and slider fixed connection, so that drive assembly can reciprocate along spout 17.

In addition, be provided with a plurality of locking holes on fixing base 16, locking hole and the perpendicular intercommunication of spout 17, a plurality of locking holes distribute along the extending direction of spout 17 to can be provided with the through-hole that can dock with the locking hole on the slider, the retaining member can pass the locking hole and stretch into to the through-hole in, makes the slider fix on fixing base 16, thereby makes drive assembly fix on fixing base 16.

In an alternative embodiment, the two opposite side walls of the closed chamber 1 may be provided with handles 19, respectively, to facilitate the operator to carry the testing device of the key.

In addition, two opposite side walls of the closed cavity 1 can be provided with grooves, and the two handles 19 are respectively positioned in the grooves, so that the handles 19 are not exposed outside the closed cavity 1, the size of the key testing equipment is favorably reduced, and the attractiveness of the key testing equipment is improved.

In this embodiment, the testing apparatus further includes a protective cover 20, the protective cover 20 may be connected to the top end of the hermetic chamber 1, and the protective cover 20 is disposed outside the driving member and the height adjusting assembly to cover the driving member and the height adjusting assembly, so as to prevent the cylinder 4 from accidentally injuring the operator during the up-and-down movement.

The above-described embodiments of the apparatus are merely illustrative, and some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A key test apparatus, comprising:

the device comprises a closed cavity, wherein a carrier for supporting an object to be tested is arranged in the closed cavity;

the pressing assembly is movably arranged in the closed cavity;

the dust blowing assembly is used for forming airflow in the closed cavity so that dust arranged in the closed cavity is suspended in the space of the closed cavity;

a control unit electrically connected to the detection element and the driving assembly; the control unit controls the driving assembly to act based on the detection signal of the detection element so as to drive the pressing assembly to press or keep away from the article to be detected.

2. The key test apparatus of claim 1, further comprising:

3. The key testing device according to claim 1, wherein the closed chamber has a vent hole on a wall thereof, and a filter member for filtering dust is disposed at the vent hole.

4. The key testing device of claim 1, wherein the driving assembly comprises a driving member and a transmission member, the driving member is disposed outside the sealed cavity, and the driving member is in transmission connection with the pressing assembly through the transmission member.

5. The key testing device of claim 4, further comprising a gas source, wherein the driving member is a gas cylinder, and the dust blowing assembly comprises a dust blowing gas pipe communicated with the closed chamber; the air source supplies air to the air cylinder and the dust blowing air pipe.

6. The key test apparatus of claim 4, wherein the driving member is a motor, and the transmission member is one of a cam mechanism, a rack and pinion mechanism, and a ball screw mechanism.

7. The key test apparatus of claim 1, further comprising:

8. The key testing device according to claim 1, wherein a threading hole for passing a power line of the object to be tested is formed on the wall of the closed chamber.

9. A key test device according to claim 1 wherein the detection element is a pressure sensor.