Wiper test bench

Abstract

The present invention provides a windshield wiper test bench, which includes a bench body with an operating table surface and a mounting frame on which a windshield is installed. A notch is formed in the middle of the bottom end of the mounting frame; a bearing plate is arranged on the operating table surface, the bearing plate is located on one side of the mounting frame, and a fixing plate for fixing the main body of the windshield wiper is arranged on the bearing plate. The fixing plate is vertically arranged on the bearing plate, and a through hole through which the connecting rod of the main body can pass is formed at a position corresponding to the notch of the fixing plate. The connecting rod extends from the notch to the other side of the mounting frame, and a wiper blade is connected to a part of the connecting rod extending to the other side of the mounting frame; the bearing plate can slide towards the notch or slide away from the notch; an actuating cylinder is also arranged on the bearing plate. The main body is located between the fixing plate and the actuating cylinder. The piston rod of the actuating cylinder extends towards the main body and abuts against the main body; the fixing plate is detachably connected to the bearing plate. This windshield wiper test bench can avoid quality problems after the windshield wiper is installed on a vehicle.

Description

Technical Field

[0001] The invention relates to the field of locomotives and vehicles, and in particular to a windshield wiper test bench. Background Art

[0002] As a driving auxiliary equipment, railway locomotive wipers play an important role in driving safety. When the locomotive wipers are manufactured or overhauled, in order to ensure that the manufactured or overhauled locomotive wipers can work normally after being installed on the vehicle, the locomotive wipers are generally tested before installation.

[0003] In the prior art, operators only perform simple operation tests on locomotive wipers without wiper blades. When the operation test is performed without wiper blades, the locomotive wipers are not under load. However, after the locomotive wipers are installed on the locomotive, they need to work with wiper blades, and the wiper blades need to cooperate with the windshield, that is, the locomotive wipers are under load during actual operation.

[0004] Therefore, the simple action test of the locomotive wiper in the prior art cannot truly simulate the performance of the locomotive wiper under actual working conditions after the wiper blades are installed and mounted on the vehicle, resulting in a series of quality problems such as poor action and stroke error in the actual use of the manufactured or overhauled locomotive wiper after installation. As a result, the locomotive wiper with quality problems needs to be removed from the locomotive body, which is not only troublesome to disassemble and assemble, but also has a certain impact on the body. Summary of the invention

[0005] The invention provides a windshield wiper test bench which can truly simulate the performance of a locomotive windshield wiper under actual working conditions and avoid quality problems after the windshield wiper is installed on a vehicle.

[0006] The present invention provides a windshield wiper test bench, comprising a bench body, wherein the bench body has an operating table and a mounting frame on which a windshield is mounted, wherein the mounting frame is vertically arranged on the operating table, and a notch is provided in the middle of the bottom end of the mounting frame;

[0007] A carrying plate is provided on the operating table, the carrying plate is located on one side of the mounting frame, a fixing plate for fixing the main body of the wiper is provided on the carrying plate, the fixing plate is vertically arranged on the carrying plate, and a through hole for allowing a connecting rod of the main body to pass through is opened at a position of the fixing plate corresponding to the notch, the connecting rod extends from the notch to the other side of the mounting frame, and a wiper blade is connected to the part of the connecting rod extending to the other side of the mounting frame;

[0008] The carrying plate can slide toward the notch or away from the notch, so that the wiper blade is separated from the windshield or attached to the windshield;

[0009] An actuating cylinder is also arranged on the bearing plate, the main body is located between the fixing plate and the actuating cylinder, a piston rod of the actuating cylinder extends toward the main body and abuts against the main body; the fixing plate is detachably connected to the bearing plate.

[0010] Optionally, the operating table has a first sliding groove extending in the direction of the notch, and the supporting plate has a sliding portion that can slide along the first sliding groove.

[0011] Optionally, there are two first sliding grooves, the two first sliding grooves are arranged opposite to each other, the bearing plate is located between the two first sliding grooves, and two sides of the bearing plate form the sliding part.

[0012] Optionally, the supporting plate has two second slide grooves extending vertically and arranged opposite to each other, the fixed plate is located between the two second slide grooves and can slide along the second slide grooves, and the top of the second slide groove has an opening for the fixed plate to slide out of the second slide groove.

[0013] Optionally, an air path is provided on the platform, and the air path has an air inlet, a first air outlet and a second air outlet, the first air outlet is used to connect to the extension chamber of the actuator cylinder, the second air outlet is used to connect to the retraction chamber of the actuator cylinder, and a first solenoid valve is provided at the first air outlet, the first solenoid valve is used to control the opening or closing of the first air outlet, and a second solenoid valve is provided at the second air outlet, the second solenoid valve is used to control the opening or closing of the second air outlet.

[0014] Optionally, the wind path further has a third air outlet, and the third air outlet is used to provide wind pressure to the wind-driven wiper when the wiper is a wind-driven wiper.

[0015] Optionally, a valve and a pressure regulating valve are provided on the air path, the valve is used to open or close the air inlet, and the pressure regulating valve is provided on the operating table, and is used to adjust the air pressure entering the air path.

[0016] Optionally, a selection switch is provided on the operating table, and the selection switch is used to select opening the first solenoid valve or the second solenoid valve.

[0017] Optionally, a water container connected to the water spray port of the wiper is provided on the platform.

[0018] Optionally, a spray switch for controlling the opening or closing of the water spray outlet is provided on the operating table.

[0019] The wiper test bench of the present invention comprises a platform body, wherein the platform body has an operating table and a mounting frame on which a windshield is mounted, the mounting frame is vertically arranged on the operating table, thereby forming a structure simulating a locomotive windshield, and a notch is provided in the middle of the bottom end of the mounting frame; a bearing plate is provided on the operating table, the bearing plate is located on one side of the mounting frame, a fixing plate for fixing a main body of the wiper is provided on the bearing plate, the fixing plate is vertically arranged on the bearing plate, and a through hole for a connecting rod of the main body to pass through is provided at a position of the fixing plate corresponding to the notch, the connecting rod extends from the notch to the other side of the mounting frame, and a wiper blade is connected to a portion of the connecting rod extending to the other side of the mounting frame, thereby enabling the installation of the wiper blade to simulate a scene of actual application; at the same time, by providing the bearing plate, the bearing plate can slide in the direction of the notch or in the direction away from the notch, so that the wiper blade can be separated from the windshield or attached to the windshield, Thereby, it is convenient to adjust the positional relationship between the wiper blade and the windshield, so as to truly simulate the state of the motorcycle wiper in actual application; in addition, by arranging an actuator on the bearing plate, the main body of the wiper is located between the fixed plate and the actuator, and the piston rod of the actuator extends toward the main body of the wiper and abuts against the main body of the wiper, so that the main body of the wiper can be more stably fixed on the fixed plate. At the same time, the size of the space for fixing the wiper main body between the fixed plate and the actuator can be changed by the telescopic function of the piston rod of the actuator, so that it can be suitable for wiper bodies of different sizes; by detachably connecting the fixing plate to the bearing plate, it is possible to replace the matching fixing plate according to the different installation interfaces of different wiper main bodies, so that the wiper test bench of the present invention can be suitable for wiper bodies with different installation interfaces, thereby improving the scope of application of the wiper test bench. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of the structure of a windshield wiper test bench provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the structure of a windshield wiper test bench provided by an embodiment of the present invention equipped with a windshield wiper;

[0023] Figure 3A wind path design diagram of a windshield wiper test bench provided in one embodiment of the present invention;

[0024] Figure 4 An electrical schematic diagram of a solenoid valve of a windshield wiper test bench provided in accordance with an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1-table body; 11-operating table;

[0027] 111-carrying plate; 1111-first slide groove;

[0028] 112-fixed plate; 1121-through hole;

[0029] 1122-second slide groove; 113-actuating cylinder;

[0030] 1131-piston rod; 1132-extension chamber;

[0031] 1133-retracting chamber; 2-mounting frame;

[0032] 21-Gap; 3-Windshield;

[0033] 4-wiper; 41-main body;

[0034] 42-wiper blade; 5-air path;

[0035] 50-air inlet; 501-gate;

[0036] 502-pressure regulating valve; 51-first air outlet;

[0037] 511-first solenoid valve; 52-second air outlet;

[0038] 521-second solenoid valve; 53-third air outlet;

[0039] 55-selector switch; 61-voltage regulating module;

[0040] 62-rectifier module; 63-selection module;

[0041] 64-voltmeter; 7-water container;

[0042] 71-Spray switch. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Figure 1 A schematic structural diagram of a windshield wiper test bench provided in one embodiment of the present invention. Figure 2 A schematic structural diagram of a windshield wiper test bench provided in one embodiment of the present invention equipped with a windshield wiper. Figure 3 This is a wind path design diagram of a wiper test bench provided in one embodiment of the present invention. Figure 4 This is an electrical schematic diagram of a solenoid valve of a windshield wiper test bench provided in one embodiment of the present invention. This embodiment provides a windshield wiper test bench.

[0045] The wiper test bench includes a platform body 1 and a mounting frame 2, wherein the platform body 1 has an operating table 11, the mounting frame 2 is used to mount a windshield 3, and the mounting frame 2 is vertically arranged on the operating table 11. Specifically, the mounting frame 2 can be vertically arranged on the operating table 11; or it can be arranged on the operating table 11 at a certain angle to simulate the inclination angle of a locomotive windshield and to form a certain angle with the operating table 11, so as to truly simulate the structure of a locomotive windshield; a notch 21 is opened in the middle of the bottom end of the mounting frame 2 for the wiper 4 and other components to pass through, and the size of the notch 21 can be set according to actual needs, and no specific limitation is made here.

[0046] A carrying plate 111 is provided on the operating table 11, and the carrying plate 111 is located on one side of the mounting frame 2. A fixing plate 112 for fixing the main body 41 of the wiper is provided on the carrying plate 111. The fixing plate 112 is vertically arranged on the carrying plate 111, and a through hole 1121 for allowing the connecting rod of the main body 41 of the wiper 4 to pass through is opened at a position corresponding to the notch 21 of the fixing plate 112. The connecting rod extends from the notch 21 to the other side of the mounting frame 2, and the wiper blade 42 is connected to the part of the connecting rod extending to the other side of the mounting frame 2, so that the installation of the wiper blade 42 can simulate the actual application scenario.

[0047] The supporting plate 111 can slide toward the notch 21 or away from the notch 21, so that the wiper blade 42 can be separated from the windshield 3 or attached to the windshield 3. Specifically, when the supporting plate 111 slides toward the notch 21, the wiper blade 42 can be separated from the windshield 3, which facilitates the installation or removal of the wiper blade 42; when the supporting plate 111 slides toward the direction away from the notch 21, the wiper blade 42 can be attached to the windshield 3, so as to simulate the state of the wiper blade 42 in actual use.

[0048] An actuator 113 is also provided on the bearing plate 111. It is well known to those skilled in the art that the piston rod of the actuator 113 can be extended and retracted in a certain direction. The main body 41 of the wiper 4 is located between the fixed plate 112 and the actuator 113, and the piston rod 1131 of the actuator 113 extends toward the main body 41 of the wiper 4 and abuts against the main body 41 of the wiper 4 to more stably fix the main body 41 of the wiper 4 on the fixed plate 112; at the same time, the piston rod 1131 of the actuator 113 can be extended or retracted under the action of air pressure or hydraulic pressure to change the space between the actuator 113 and the fixed plate 112 for fixing the main body 41 of the wiper 4, so that the wiper test bench of this embodiment can be applicable to the main body 41 of the wiper 4 of different sizes, so as to expand the scope of application of the wiper test bench of this embodiment.

[0049] The fixing plate 112 is detachably connected to the bearing plate 111, that is, the fixing plate 112 can be disassembled and replaced as needed. Since the interfaces on the main body 41 of different wipers 4 that are installed with the fixing plate 112 may be inconsistent, when testing different wipers 4, it is necessary to replace the matching fixing plate 112 according to the installation interface of the main body 41 of the wiper 4, so that the wiper test bench of this embodiment can be applicable to the main body 41 of the wiper 4 with different installation interfaces, thereby expanding the scope of application of the wiper test bench of this embodiment.

[0050] During the specific test, firstly, an appropriate fixing plate 112 is selected, and the main body 41 of the wiper 4 to be tested is fixedly installed on the fixing plate 112, and at the same time, the piston rod 1131 of the actuator 113 is extended and abutted against the main body 41 of the wiper 4, so that the wiper 4 is stably fixed on the supporting plate 111 of the wiper test bench; then, the supporting plate 111 is slid in a direction away from the notch 21, so that the wiper blade 42 can be fitted on the windshield 3 to simulate its actual state in use; finally, the wiper 4 is controlled to perform an action test on the wiper test bench according to preset requirements, so as to test the performance of the wiper 4 in actual use, thereby avoiding quality problems such as poor action and stroke error of the wiper 4 after installation to a certain extent.

[0051] In order to enable the supporting plate 111 to slide more smoothly along a certain path on the operating table 11 toward the notch 21 or away from the notch 21, a first sliding groove 1111 extending toward the notch 21 may be provided on the operating table 11, and correspondingly, a sliding portion capable of sliding along the first sliding groove 1111 may be provided on the supporting plate 111.

[0052] A more preferred implementation method is: there can be two first slide grooves 1111, and the two first slide grooves 1111 are arranged opposite to each other, the supporting plate 111 is located between the two first slide grooves 1111, and the two sides of the supporting plate 111 are formed as sliding parts that can slide along the first slide grooves 1111, wherein the sliding parts can be formed by the edges of the two sides of the supporting plate 111 extending into the first slide grooves 1111; or they can be formed by sliders welded on both sides of the supporting plate 111 and matching with the first slide grooves 1111. Specifically, there can be one slider on each side of the supporting plate 111, or there can be two sliders on each side, or there can be more than one slider on each side, and the number of sliders on both sides of the supporting plate 111 can be equal or unequal.

[0053] Another feasible implementation method is: there can be one first slide groove, and the first slide groove is arranged on the operating table covered by the carrying plate, the carrying plate is placed on the first slide groove, and the bottom surface of the carrying plate in contact with the first slide groove is provided with a sliding portion that can slide along the first slide groove, wherein the first slide groove can be embedded in the operating table so that the top of the first slide groove is flush with the operating table or slightly lower than the operating table, so that the carrying plate can be stably placed on the operating table and the first slide groove, and the first slide groove can be arranged on the operating table in other forms, as long as it can meet the requirements of the first slide groove in this embodiment.

[0054] In addition, in order to facilitate the disassembly of the fixing plate 112 detachably connected to the carrying plate 111 and to enable the fixing plate 112 to have a certain strength, stability and load-bearing capacity, a preferred implementation method is: two second relative slots 1122 extending vertically can be provided on the carrying plate 111, wherein the two relative second slots 1122 can be welded to the carrying plate 111, and at the same time, in order to enhance the stability and load-bearing capacity of the two second slots 1122, reinforcing ribs can be welded on the sides of the two second slots 1122 respectively. In addition, the two second slots 1122 can also be welded to the sides of the two second slots 1122. Therefore, it is fixed on the carrying plate 111 by other means; the fixing plate 112 is located between the two second slide grooves 1122 and can slide along the second slide grooves 1122. The top of the second slide grooves 1122 has an opening for the fixing plate 112 to slide out of the second slide grooves 1122. When the fixing plate 112 needs to be replaced, it is only necessary to slide the original fixing plate 112 upwards and take it out from the opening of the second slide grooves 1122, and then slide the fixing plate 112 to be replaced from the opening of the second slide grooves 1122 downwards into the second slide grooves 1122. This implementation method makes the replacement process of the fixing plate 112 simple and quick.

[0055] In other implementations, the fixed plate can also be detachably set on the supporting plate by providing a slide groove on one side and a baffle on the other side, or it can be set on the supporting plate by other detachable connecting structures such as: a card slot and a buckle. As long as it can meet the requirements of this embodiment for a detachable fixed plate, it will not be elaborated here.

[0056] The actuator 113 of the wiper test bench of the present embodiment can use wind pressure to control the extension or retraction of its piston rod 1131. Specifically, in order to realize the function of controlling the extension or retraction of the piston rod 1131 of the actuator 113 by wind pressure, an air path 5 can be set on the platform body 1 to control the direction of the guided wind and achieve the purpose of providing wind pressure for the wiper test bench of the present embodiment. In the design process of the air path 5, the pipe used to form the air path 5 can be metal or non-metal.

[0057] Reference Figure 3 As shown, specifically, the air path 5 has an air inlet 50, a first air outlet 51 and a second air outlet 52, wherein the air inlet 50 is used to connect with the wind source to provide wind pressure to the air path 5; the first air outlet 51 is used to connect with the extension chamber 1132 of the actuator 113, and the second air outlet 52 is used to connect with the retraction chamber 1133 of the actuator 113, when the wind pressure of the extension chamber 1132 is greater than the wind pressure of the retraction chamber 1133, the piston rod 1131 of the actuator 113 extends outward, and when the wind pressure of the extension chamber 1132 is less than the wind pressure of the retraction chamber 1133, the piston rod 1131 of the actuator 113 retracts inward.

[0058] Furthermore, in order to facilitate the control of the first air outlet 51 and the second air outlet 52 so as to control the extension or retraction of the piston rod 1131 of the actuator 113, a first solenoid valve 511 is provided at the first air outlet 51, and the first solenoid valve 511 is used to control the opening or closing of the first air outlet 51, that is, to control whether the wind pressure enters the extension chamber 1132; a second solenoid valve 521 is provided at the second air outlet 52, and the second solenoid valve 521 is used to control the opening or closing of the second air outlet 52, that is, to control whether the wind pressure enters the retraction chamber 1133.

[0059] Reference Figure 4 As shown, this embodiment provides an electrical schematic diagram for controlling the on and off of the first solenoid valve 511 and the second solenoid valve 521, and the electrical schematic diagram includes a voltage regulating module 61, a rectifier module 62 and a selection module 63, wherein the voltage regulating module 61 and the rectifier module 62 are used to convert the alternating current into the direct current required by this embodiment, and in other embodiments, a direct current power supply can be directly used for power supply, and the voltage regulating module and the rectifier module in the electrical schematic diagram are omitted; the selection module 63 is used to select the first solenoid valve 511 to be connected and the second solenoid valve 521 to be disconnected as needed, or to select the first solenoid valve 511 to be disconnected and the second solenoid valve 521 to be connected as needed, when the first solenoid valve 511 is connected and the second solenoid valve 521 is disconnected, the first air outlet 51 is opened to provide wind pressure to the extension chamber 1132, and the second air outlet 52 is closed and disconnected The wind pressure is supplied to the retracting chamber 1133. At this time, the piston rod 1131 extends outward and presses against the main body 41 of the wiper 4 to fix the main body 41 of the wiper 4; when the first solenoid valve 511 is disconnected and the second solenoid valve 521 is connected, the first air outlet 51 is closed to disconnect the wind pressure supply to the extending chamber 1132, and the second air outlet 52 is opened to provide wind pressure to the retracting chamber 1133. At this time, the piston rod 1131 retracts inward to release the fixation to the main body 41 of the wiper 4; in addition, a protection circuit is also provided in the electrical schematic diagram provided in this embodiment to perform overcurrent protection on the circuit in the electrical schematic diagram; relevant display lights and display instruments such as a voltmeter 64 can also be provided on the operating table as needed to facilitate observation of whether the output voltage is stable, thereby avoiding burning of electrical components on the wiper test bench.

[0060] Reference Figure 3 As shown, further, in order to make the wiper test bench of this embodiment applicable to more types of wipers 4, a third air outlet 53 is also provided on the wind path, and the third air outlet 53 is used to provide wind pressure for the wind-driven wiper when the wiper 4 is a wind-driven wiper.

[0061] Specifically, when it is necessary to test the wind-driven wiper, first fix the wind-driven wiper in place on the wiper test bench, then connect the third air outlet 53 on the air path 5 with the air inlet on the main body of the wind-driven wiper, so that the wind-driven wiper can be driven by wind pressure. Finally, the wind-driven wiper is controlled to be tested on the wiper test bench according to preset requirements to test the performance of the wiper in actual application, thereby avoiding quality problems such as malfunction and stroke error after the wind-driven wiper is installed on the vehicle to a certain extent.

[0062] In order to better control the supply of wind pressure in the air path 5 and adjust the wind pressure to meet the requirements of the actuator 113 and / or the wind-driven wiper, a gate valve 501 and a pressure regulating valve 502 can be set on the air path 5, wherein the gate valve 501 is used to open or close the air inlet to control the connection or disconnection between the wind source and the air path, and further control whether the wind pressure in the wind source is delivered into the air path; the pressure regulating valve 502 is set on the operating table 11, and the pressure regulating valve 502 is used to adjust the wind pressure entering the air path 5. The pressure regulating valve 502 is set on the operating table 11. On the one hand, it is convenient for the operator to directly adjust the wind pressure entering the air path 5 from the table, and on the other hand, it is convenient to monitor the wind pressure through the pressure regulating valve 502 during the process of delivering the wind pressure.

[0063] In order to facilitate the control of the first solenoid valve 511 and the second solenoid valve 521 to control the extension and retraction of the piston rod 1131 of the actuator 113 of the wiper test bench of this embodiment, a selection switch 55 can be set on the operating table 11. The selection switch 55 is used to select opening the first solenoid valve 511 or the second solenoid valve 521.

[0064] Reference Figure 4 As shown, specifically, the selection switch 55 can be connected to the selection module 63 in the electrical schematic diagram to achieve the purpose of controlling the first solenoid valve 511 and the second solenoid valve 521. The selection switch 63 can have three gears, for example, A, B and O. When the selection switch 63 selects gear A, the first solenoid valve 511 is opened and the second solenoid valve 521 is closed; when the selection switch 63 selects gear B, the second solenoid valve 521 is opened and the first solenoid valve 511 is closed; when the selection switch 63 selects gear O, both the first solenoid valve 511 and the second solenoid valve 521 are closed.

[0065] In other embodiments, the selection switch 63 may also be configured with other control circuits or control modes as required, which will not be described in detail here.

[0066] Furthermore, a water container 7 connected to the water spray port of the wiper 4 may be provided on the platform to test the spray effect of the wiper 4 .

[0067] Specifically, a spray switch 71 for controlling the opening or closing of the water spray port can be set on the operating table 11, so that the operator can directly control the water spray port of the wiper 4 from the operating table 11 to complete the spray test of the wiper 4.

[0068] In addition, the windshield wiper test bench of this embodiment can also be used for electrical testing of sand spreading and bagpipe electric control valves.

[0069] The wiper test bench of the present embodiment includes a platform body, the platform body has an operating table and a mounting frame with a windshield installed, the mounting frame is vertically arranged on the operating table, so as to form a structure simulating a locomotive windshield, and a notch is provided in the middle of the bottom end of the mounting frame; a bearing plate is provided on the operating table, the bearing plate is located on one side of the mounting frame, a fixing plate for fixing the main body of the wiper is provided on the bearing plate, the fixing plate is vertically arranged on the bearing plate, and a through hole for a connecting rod of the main body to pass through is provided at a position corresponding to the notch of the fixing plate, the connecting rod extends from the notch to the other side of the mounting frame, and a wiper blade is connected to the part of the connecting rod extending to the other side of the mounting frame, so that the installation of the wiper blade can simulate the actual application scenario; at the same time, the bearing plate can be slid toward the notch or away from the notch, so that the wiper blade can be separated from the windshield or attached to the windshield, Thereby, it is convenient to adjust the positional relationship between the wiper blade and the windshield, so as to truly simulate the state of the motorcycle wiper in actual application; in addition, by arranging an actuator on the bearing plate, the main body of the wiper is located between the fixed plate and the actuator, and the piston rod of the actuator extends toward the main body of the wiper and abuts against the main body of the wiper, so that the main body of the wiper can be more stably fixed on the fixed plate. At the same time, the size of the space for fixing the wiper main body between the fixed plate and the actuator can be changed by the telescopic function of the piston rod of the actuator, so that it can be suitable for wiper bodies of different sizes; by detachably connecting the fixing plate to the bearing plate, it is possible to replace the matching fixing plate according to the different installation interfaces of different wiper main bodies, so that the wiper test bench of this embodiment can be suitable for wiper bodies with different installation interfaces, thereby improving the scope of application of the wiper test bench.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A windshield wiper test bench, characterized in that, it includes a bench body, the bench body has an operating table surface and a mounting frame for mounting a windshield, the mounting frame is vertically arranged on the operating table surface, and a notch is formed in the middle of the bottom end of the mounting frame; a bearing plate is arranged on the operating table surface, the bearing plate is located on one side of the mounting frame, a fixing plate for fixing the main body of the windshield wiper is arranged on the bearing plate, the fixing plate is vertically arranged on the bearing plate, and a through hole for the connecting rod of the main body to pass through is formed at a position corresponding to the notch of the fixing plate, the connecting rod extends out of the notch to the other side of the mounting frame, and a wiper blade is connected to a part of the connecting rod extending to the other side of the mounting frame; the bearing plate can slide towards the direction of the notch or slide away from the direction of the notch, so that the wiper blade is separated from or attached to the windshield; an actuating cylinder is further arranged on the bearing plate, the main body is located between the fixing plate and the actuating cylinder, a piston rod of the actuating cylinder extends towards the main body and abuts against the main body; the fixing plate is detachably connected to the bearing plate; the operating table surface has a first chute extending towards the direction of the notch or away from the direction of the notch, and the bearing plate has a sliding part that can slide along the first chute; a wind path is arranged on the bench body, the wind path has an air inlet, a first air outlet and a second air outlet, the first air outlet is used for connecting the extending cavity of the actuating cylinder, the second air outlet is used for connecting the retracting cavity of the actuating cylinder, and a first solenoid valve is arranged at the first air outlet, the first solenoid valve is used for controlling the opening or closing of the first air outlet, a second solenoid valve is arranged at the second air outlet, and the second solenoid valve is used for controlling the opening or closing of the second air outlet; the wind path further has a third air outlet, and the third air outlet is used for providing air pressure for a pneumatic windshield wiper when the windshield wiper is a pneumatic windshield wiper.

2. The windshield wiper test bench according to claim 1, characterized in that, there are two first chutes, the two first chutes are arranged oppositely, the bearing plate is located between the two first chutes, and both sides of the bearing plate form the sliding parts.

3. The windshield wiper test bench according to claim 2, characterized in that, the bearing plate has two relatively arranged second chutes extending vertically, the fixing plate is located between the two second chutes and can slide along the second chutes, and an opening for the fixing plate to slide out of the second chutes is provided at the top of the second chutes.

4. The windshield wiper test bench according to claim 1, characterized in that, a stop valve and a pressure regulating valve are arranged on the wind path, the stop valve is used for opening or closing the air inlet, the pressure regulating valve is arranged on the operating table surface, and the pressure regulating valve is used for adjusting the air pressure entering the wind path.

5. The windshield wiper test bench according to claim 1, characterized in that, A selection switch is provided on the operation tabletop, and the selection switch is used to select to open the first solenoid valve or the second solenoid valve.

6. The windshield wiper test bench according to any one of claims 1 to 3, characterized in that a water container communicating with the water spray port of the windshield wiper is provided on the table body.

7. The windshield wiper test bench according to claim 6, characterized in that a spray switch for controlling the opening or closing of the water spray port is provided on the operation tabletop.

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