Detection tool for vehicle tail gas after-treatment device

Abstract

The utility model relates to the technical field of vehicle after-treatment product detection tools, and discloses a vehicle tail gas after-treatment device detection tool which comprises a bottom plate and two supporting mechanisms. The bottoms of the supporting mechanisms are installed on the top face of the bottom plate, the two supporting mechanisms are spaced in the length direction of the bottom plate, and the distance between the two supporting mechanisms in the length direction of the bottom plate is adjustable. The top of the supporting mechanism is provided with a positioning groove used for containing the bottom of a mounting area of the vehicle tail gas after-treatment device, and the vertical depth of the positioning groove is smaller than the diameter of the mounting area of the vehicle tail gas after-treatment device. Therefore, the detection tool for the vehicle tail gas after-treatment device can prevent the vehicle tail gas after-treatment device from rolling and falling off in the quality detection process, and the vehicle tail gas after-treatment device is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology for vehicle after-treatment products, specifically to a testing tooling for vehicle exhaust after-treatment devices. Background Technology

[0002] After the vehicle exhaust aftertreatment device is manufactured, it needs to undergo quality testing. During testing, the device must be placed on a platform, and then a comprehensive inspection is performed using testing instruments.

[0003] However, since vehicle exhaust aftertreatment devices are generally cylindrical, they are prone to rolling on the platform and falling off, causing damage. Utility Model Content

[0004] The purpose of this invention is to overcome the risk of vehicle exhaust aftertreatment devices rolling and falling during quality testing.

[0005] To achieve the above objectives, this utility model provides a testing fixture for vehicle exhaust aftertreatment devices. The fixture includes a base plate and two support mechanisms. The bottom of each support mechanism is mounted on the top surface of the base plate. The two support mechanisms are spaced apart along the length of the base plate, and the distance between them is adjustable. The top of each support mechanism has a positioning groove for accommodating the bottom of the mounting area of ​​the vehicle exhaust aftertreatment device. The vertical depth of the positioning groove is less than the diameter of the mounting area of ​​the vehicle exhaust aftertreatment device.

[0006] In some embodiments, the top of the base plate is provided with a plurality of positioning holes spaced apart along its length, and the bottom of the support mechanism is connected to a position adjustment mechanism, which enables the support mechanism to be positioned at any of the positioning holes on the base plate.

[0007] In some embodiments, the position adjustment mechanism includes a connecting seat and a positioning bolt; a support mechanism is mounted on the top surface of the corresponding connecting seat, and the bottom of the connecting seat is mounted on the top surface of the base plate. A connecting plate is provided on the side of the connecting seat facing away from the other connecting seat. The connecting plate has a vertically extending mounting hole, and the inner wall of the mounting hole has a first internal thread. The positioning bolt is installed in the mounting hole and threadedly connected to the mounting hole; the inner wall of the positioning hole has a second internal thread capable of threadedly connecting to the positioning bolt.

[0008] In some embodiments, the bottom end of the positioning bolt is provided with a hemispherical protrusion, which can be movably inserted into the positioning hole, and the height of the hemispherical protrusion is less than the depth of the positioning hole.

[0009] In some embodiments, the top surface of the base plate is provided with multiple marker lines spaced apart along the length of the base plate and extending along the width of the base plate. Each marker line corresponds to one of the positioning holes. The position adjustment mechanism also includes an indicator plate mounted on the connecting plate. The bottom of the indicator plate is located between the connecting seat and the base plate. The indicator plate has an alignment surface that faces away from the support mechanism and extends vertically. When the lower edge of the alignment surface is aligned with any marker line, the mounting hole aligns with the corresponding positioning hole.

[0010] In some embodiments, the position adjustment mechanism further includes a sliding mechanism, which further includes two slide rails and two sliders. The slide rails are fixedly installed on the top surface of the base plate and extend along the length direction of the base plate. The two ends of the slide rails are respectively provided with stop blocks for stopping the sliders, and the two slide rails are spaced apart in the width direction of the base plate. The two sliders are slidably installed on the two slide rails respectively, and the tops of the two sliders are fixedly connected to the bottom surface of the connecting seat.

[0011] In some embodiments, the positioning groove is configured as an inverted trapezoidal groove; in the width direction of the base plate, the distance between the two sidewalls of the positioning groove gradually decreases from top to bottom; the diameter of the installation area of ​​the vehicle exhaust aftertreatment device is smaller than the maximum distance between the two sidewalls of the positioning groove and larger than the minimum distance between the two sidewalls of the positioning groove.

[0012] In some embodiments, the bottom wall and both side walls of the positioning groove are provided with elastic pads.

[0013] In some embodiments, the periphery of the base plate is provided with a plurality of weight-reducing notches, and the center of the base plate is provided with at least one weight-reducing perforation.

[0014] In some embodiments, the vehicle exhaust aftertreatment device testing fixture further includes a mobile platform, with a base plate bolted to the top surface of the mobile platform and a plurality of spaced rollers mounted on the bottom of the mobile platform.

[0015] The above-mentioned technical solution of this utility model has the following beneficial effects:

[0016] The positions of the two support mechanisms are adjusted sequentially on the base plate so that the distance between the two support mechanisms along the length of the base plate matches the distance between the two mounting areas of the vehicle exhaust aftertreatment device. Then, the two mounting areas of the vehicle exhaust aftertreatment device are respectively placed into the positioning grooves of their corresponding support mechanisms. The positioning grooves fix the mounting areas, preventing the cylindrical vehicle exhaust aftertreatment device from rolling and falling. Then, workers can use testing instruments to perform quality inspections on the vehicle exhaust aftertreatment device placed on this testing fixture. Therefore, the vehicle exhaust aftertreatment device testing fixture of this invention can prevent the vehicle exhaust aftertreatment device from rolling and falling during quality inspection, avoiding damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a vehicle exhaust aftertreatment device testing fixture in one embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the use of the vehicle exhaust aftertreatment device testing fixture in one embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the distribution of the marker lines in one embodiment of the present invention;

[0020] Figure 4 yes Figure 2 A partial schematic diagram of part A in the middle;

[0021] Figure 5 This is a schematic diagram of a positioning bolt in one embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the label plate in one embodiment of this utility model.

[0023] Explanation of reference numerals in the attached figures

[0024] 1. Base plate; 11. Positioning hole; 12. Marking line; 13. Slide rail; 14. Stop block; 15. Weight reduction notch; 16. Weight reduction perforation;

[0025] 2. Support mechanism; 21. Positioning groove;

[0026] 3. Post-processing unit; 31. Installation area;

[0027] 4. Position adjustment mechanism; 41. Connecting seat; 42. Connecting plate; 421. Mounting hole; 422. Marking plate; 423. Alignment surface; 43. Positioning bolt; 44. Slider;

[0028] 5. Mobile platform; 51. Scroll wheel. Detailed Implementation

[0029] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are intended only to explain this utility model and not to limit it. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this utility model by illustrating examples of it.

[0030] like Figure 1 and Figure 2As shown, this utility model provides a testing fixture for vehicle exhaust aftertreatment devices (hereinafter referred to as the testing fixture), which includes a base plate 1 and two support mechanisms 2. The bottom of the support mechanism 2 is mounted on the top surface of the base plate 1, and the two support mechanisms 2 are spaced apart along the length of the base plate 1, and the distance between the two support mechanisms 2 along the length of the base plate 1 is adjustable. The top of the support mechanism 2 is provided with a positioning groove 21 for accommodating the bottom of the mounting area 31 of the vehicle exhaust aftertreatment device 3, and the vertical depth of the positioning groove 21 is less than the diameter of the mounting area 31 of the vehicle exhaust aftertreatment device 3.

[0031] Specifically, the positions of the two support mechanisms 2 are adjusted sequentially on the base plate 1 so that the distance between the two support mechanisms 2 along the length of the base plate 1 matches the distance between the two mounting areas 31 of the vehicle exhaust aftertreatment device 3. Then, the two mounting areas 31 of the vehicle exhaust aftertreatment device 3 are respectively placed into the positioning grooves 21 of their corresponding support mechanisms 2. The positioning grooves 21 fix the mounting areas 31, preventing the cylindrical vehicle exhaust aftertreatment device 3 from rolling and thus avoiding it from rolling off. Then, the operator can use testing instruments to perform quality testing on the vehicle exhaust aftertreatment device 3 placed on the testing fixture. Therefore, the vehicle exhaust aftertreatment device testing fixture of this utility model can prevent the vehicle exhaust aftertreatment device 3 from rolling off during the quality testing process, avoiding damage to it.

[0032] In some embodiments of this utility model, the top of the base plate 1 is provided with a plurality of positioning holes 11 spaced apart along its length direction, and the bottom of the support mechanism 2 is connected to a position adjustment mechanism 4, which can be positioned at any positioning hole 11 of the base plate 1 by means of the position adjustment mechanism 4.

[0033] Specifically, adjust the position of the support mechanism 2. When the position of the support mechanism 2 matches the position of the installation area 31 of the vehicle exhaust aftertreatment device 3 being tested, fix the support mechanism 2 in the corresponding positioning hole 11 below its position. After the position of the support mechanism 2 is fixed, place the installation area 31 of the vehicle exhaust aftertreatment device 3 into the positioning groove 21.

[0034] like Figure 1 As shown, in some embodiments of this utility model, the support mechanism 2 includes a vertically extending support plate, the thickness direction of which is consistent with the length direction of the base plate 1. A positioning groove 21 is located at the top of the support plate and extends through the support plate along the length direction of the base plate 1. Of course, the support mechanism 2 can also be any other structural form capable of achieving the above-mentioned technical effects; for example, it can be a frame welded from multiple rods. This utility model does not limit the specific form of the support mechanism.

[0035] like Figure 4As shown, in some embodiments of this utility model, the position adjustment mechanism 4 includes a connecting seat 41 and a positioning bolt 43; the support mechanism 2 is installed on the top surface of the corresponding connecting seat 41, and the bottom of the connecting seat 41 is installed on the top surface of the base plate 1. A connecting plate 42 is provided on the side of the connecting seat 41 facing away from the other connecting seat 41. The connecting plate 42 has a vertically extending mounting hole 421, and the inner wall of the mounting hole 421 has a first internal thread. The positioning bolt 43 is installed in the mounting hole 421 and threadedly connected to the mounting hole 421; the inner wall of the positioning hole 11 has a second internal thread capable of threadedly connecting to the positioning bolt 43.

[0036] Specifically, when adjusting the position of the support mechanism 2, the connecting seat 41 connected to its bottom surface moves together with it. When the position of the support mechanism 2 is adapted to the position of the installation area 31 of the vehicle exhaust aftertreatment device 3, the position of the support mechanism 2 is slightly adjusted so that the positioning hole 11 closest to the support mechanism 2 is aligned with the mounting hole 421. Then, the positioning bolt 43 installed in the mounting hole 421 is rotated downward and inserted into the positioning hole 11, thereby fixing the support mechanism 2 to the base plate 1. Moreover, the positioning bolt 43 can be threaded into the positioning hole 11, which can prevent the positioning bolt 43 from shaking in the positioning hole 11, thereby preventing the support mechanism 2 from shaking after positioning.

[0037] It should be noted that the length of the mounting area 31 of the vehicle exhaust aftertreatment device 3 in the longitudinal direction of the base plate 1 is greater than the length of the positioning groove 21 in the longitudinal direction of the base plate 1. Therefore, when the support mechanism 2 is fixed in the positioning hole 11 of the base plate 1 by the positioning bolt 43, the mounting area 31 of the vehicle exhaust aftertreatment device 3 allows for fine adjustment of the position of the support mechanism 2.

[0038] like Figure 5 As shown, in some embodiments of this utility model, the bottom end of the positioning bolt 43 is provided with a hemispherical protrusion, which can be movably inserted into the positioning hole 11, and the height of the hemispherical protrusion is less than the depth of the positioning hole 11.

[0039] Specifically, when the positioning bolt 43 is inserted into the positioning hole 11, the hemispherical protrusion at its bottom enables the positioning bolt 43 to quickly align with the positioning hole 11 and extend into it.

[0040] In some embodiments of this utility model, the top surface of the base plate 1 is provided with multiple marker lines 12 spaced apart along the length direction of the base plate 1, and the marker lines 12 extend along the width direction of the base plate 1. All marker lines 12 correspond one-to-one with all positioning holes 11. The position adjustment mechanism 4 also includes an indicator plate 422 installed on the connecting plate 42. The bottom of the indicator plate is located between the connecting seat 41 and the base plate 1. The indicator plate 422 has an alignment surface 423 that faces away from the support mechanism 2 and extends vertically. When the lower edge of the alignment surface 423 is aligned with any marker line 12, the mounting hole 421 is aligned with the corresponding positioning hole 11.

[0041] Specifically, the edge of the alignment surface 423 of the marking plate 422 is parallel to the width direction of the base plate 1. When the lower edge of the alignment surface 423 is aligned with any marking line 12, the mounting hole 421 can be aligned with the positioning hole 11 corresponding to the marking line 12, and the positioning bolt 43 can be inserted downward into the positioning hole 11 to fix the support mechanism 2.

[0042] like Figure 3 and Figure 6 As shown, in some embodiments, the marker line 12 extends along the width direction of the base plate 1 and passes through the axis of its corresponding positioning hole 11. The alignment surface 423 of the marker plate 422 extends vertically, and its edge is parallel to the width direction of the base plate 1. The extension line of the edge of the marker plate 422 passes through the axis of the mounting hole 421. When the edge of the alignment surface 423 of the marker plate 422 is aligned with any marker line 12 of the base plate 1, the mounting hole 421 is aligned with the positioning hole 11 corresponding to the marker line 12. The positioning bolt 43, which passes through the mounting hole 421, can be rotated downward and inserted into the positioning hole 11.

[0043] In some embodiments of this utility model, the position adjustment mechanism 4 further includes a sliding mechanism, which further includes two slide rails 13 and two sliders 44. The slide rails 13 are fixedly installed on the top surface of the base plate 1 and extend along the length direction of the base plate 1. The two ends of the slide rails 13 are respectively provided with stop blocks 14 for stopping the sliders 44, and the two slide rails 13 are spaced apart in the width direction of the base plate 1. The two sliders 44 are slidably installed on the two slide rails 13 respectively, and the top of the two sliders 44 is fixedly connected to the bottom surface of the connecting seat 41.

[0044] Specifically, the support mechanism 2 is connected to the base plate 1 via a sliding mechanism, and the connecting seat 41 can drive the support mechanism 2 to move along the slide rail 13 so that the support mechanism 2 moves to the target position. In addition, the stop block 14 can prevent the slider 44 from sliding off the slide rail 13.

[0045] In some embodiments of this utility model, the positioning groove 21 is configured as an inverted trapezoidal groove; in the width direction of the base plate 1, the distance between the two side walls of the positioning groove 21 gradually decreases from top to bottom; the diameter of the installation area 31 of the vehicle exhaust aftertreatment device 3 is smaller than the maximum distance between the two side walls of the positioning groove 21 and larger than the minimum distance between the two side walls of the positioning groove 21.

[0046] Specifically, the mounting area 31 of the vehicle exhaust aftertreatment device 3 is placed in the positioning groove 21. The bottom of the mounting area 31 is spaced apart from the bottom wall of the positioning groove 21. The mounting area 31 is restricted from rolling by the two side walls of the positioning groove 21 on both sides of the width direction of the base plate 1, thereby fixing the vehicle exhaust aftertreatment device 3 in position. Furthermore, the inverted trapezoidal positioning groove 21 is compatible with various sizes and models of vehicle exhaust aftertreatment devices 3.

[0047] In some embodiments of this invention, the bottom wall and two side walls of the positioning groove 21 are provided with elastic pads. The elastic pads protect the vehicle exhaust aftertreatment device 3 from impacts to the positioning groove 21.

[0048] In some embodiments of this utility model, the periphery of the base plate 1 is provided with a plurality of weight-reducing notches 15, and the center of the base plate 1 is provided with at least one weight-reducing perforation 16.

[0049] Specifically, by setting a weight-reducing notch 15 and a weight-reducing perforation 16 on the base plate 1, the weight of the base plate 1 can be reasonably controlled, giving it the advantages of being lightweight and easy to move.

[0050] In some embodiments of this utility model, the vehicle exhaust aftertreatment device testing fixture also includes a mobile platform 5, with a base plate 1 bolted to the top surface of the mobile platform 5, and a plurality of spaced rollers 51 installed at the bottom of the mobile platform 5.

[0051] Specifically, the testing fixture is fixed on a mobile platform 5 with rollers 51, which makes it mobile and expands the application area of ​​the testing fixture.

[0052] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A testing fixture for vehicle exhaust aftertreatment devices, characterized in that, It includes a base plate (1) and two support mechanisms (2). The bottom of the support mechanism (2) is installed on the top surface of the base plate (1). The two support mechanisms (2) are spaced apart in the length direction of the base plate (1), and the distance between the two support mechanisms (2) in the length direction of the base plate (1) is adjustable. The top of the support mechanism (2) is provided with a positioning groove (21) for accommodating the bottom of the installation area (31) of the vehicle exhaust aftertreatment device (3). The vertical depth of the positioning groove (21) is less than the diameter of the installation area (31) of the vehicle exhaust aftertreatment device (3).

2. The testing fixture for vehicle exhaust aftertreatment devices according to claim 1, characterized in that, The top of the base plate (1) is provided with a plurality of positioning holes (11) spaced apart along its length. The bottom of the support mechanism (2) is connected to a position adjustment mechanism (4). The support mechanism (2) can be positioned at any of the positioning holes (11) of the base plate (1) by means of the position adjustment mechanism (4).

3. The testing fixture for vehicle exhaust aftertreatment devices according to claim 2, characterized in that, The position adjustment mechanism (4) includes a connecting seat (41) and a positioning bolt (43); the support mechanism (2) is installed on the top surface of the corresponding connecting seat (41), and the bottom of the connecting seat (41) is installed on the top surface of the base plate (1); a connecting plate (42) is provided on the side of the connecting seat (41) facing away from the other connecting seat (41), the connecting plate (42) is provided with a vertically extending mounting hole (421), and the inner wall of the mounting hole (421) is provided with a first internal thread; the positioning bolt (43) is installed in the mounting hole (421) and threadedly connected to the mounting hole (421); The inner wall of the positioning hole (11) is provided with a second internal thread that can be threadedly connected to the positioning bolt (43).

4. The testing fixture for vehicle exhaust aftertreatment devices according to claim 3, characterized in that, The bottom end of the positioning bolt (43) is provided with a hemispherical protrusion, which can be movably inserted into the positioning hole (11). The height of the hemispherical protrusion is less than the depth of the positioning hole (11).

5. The testing fixture for vehicle exhaust aftertreatment devices according to claim 3, characterized in that, The top surface of the base plate (1) is provided with multiple marker lines (12) that are spaced apart along the length direction of the base plate (1). The marker lines (12) extend along the width direction of the base plate (1), and all the marker lines (12) correspond one-to-one with all the positioning holes (11). The position adjustment mechanism (4) further includes an indicator plate (422) mounted on the connecting plate (42). The bottom of the indicator plate (422) is located between the connecting seat (41) and the base plate (1). The indicator plate (422) has an alignment surface (423) that faces away from the support mechanism (2) and extends vertically. When the lower edge of the alignment surface (423) is aligned with any of the marking lines (12), the mounting hole (421) is aligned with the corresponding positioning hole (11).

6. The testing fixture for vehicle exhaust aftertreatment devices according to claim 3, characterized in that, The position adjustment mechanism (4) further includes a sliding mechanism, which further includes two slide rails (13) and two sliders (44). The slide rails (13) are fixedly installed on the top surface of the base plate (1) and extend along the length direction of the base plate (1). The two ends of the slide rails (13) are respectively provided with stop blocks (14) for stopping the sliders (44), and the two slide rails (13) are spaced apart in the width direction of the base plate (1). The two sliders (44) are slidably installed on the two slide rails (13), and the top of the two sliders (44) is fixedly connected to the bottom surface of the connecting seat (41).

7. The testing fixture for vehicle exhaust aftertreatment devices according to claim 1, characterized in that, The positioning groove (21) is configured as an inverted trapezoidal groove; in the width direction of the base plate (1), the distance between the two side walls of the positioning groove (21) gradually decreases from top to bottom; the diameter of the installation area (31) of the vehicle exhaust aftertreatment device (3) is smaller than the maximum distance between the two side walls of the positioning groove (21) and larger than the minimum distance between the two side walls of the positioning groove (21).

8. The testing fixture for vehicle exhaust aftertreatment devices according to claim 7, characterized in that, The bottom wall and two side walls of the positioning groove (21) are provided with elastic pads.

9. The testing fixture for vehicle exhaust aftertreatment devices according to claim 1, characterized in that, The base plate (1) has multiple weight-reducing notches (15) around its perimeter, and at least one weight-reducing perforation (16) in the center of the base plate (1).

10. The testing fixture for vehicle exhaust aftertreatment devices according to claim 9, characterized in that, The vehicle exhaust aftertreatment device testing fixture also includes a mobile platform (5), the base plate (1) is bolted to the top surface of the mobile platform (5), and a plurality of spaced rollers (51) are installed at the bottom of the mobile platform (5).

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