Tool for vehicle testing
By designing tooling with a fixed frame and extension components, and using limiting and pull-out structures to fix the sandbags, the problem of testing errors caused by sandbag slippage was solved, thus achieving accuracy and applicability in vehicle testing.
Patent Information
- Application Number
- CN202520098060.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-15
AI Technical Summary
During vehicle testing, the sandbags sliding inside the cargo box caused changes in the vehicle's axle load and wheel load, resulting in testing errors.
Design a fixture that includes a fixing frame and an extension component. The fixing frame is formed by multiple first square tubes to create positioning grids. The extension component adjusts the size of the fixture through a detachable second square tube. The sandbag is fixed by a limiting structure and a pull-out structure to ensure that the position of the sandbag remains unchanged.
It effectively reduces testing errors, adapts to cargo boxes of different sizes, ensures that vehicle axle load and wheel load remain unchanged, and improves testing accuracy and applicability.
Smart Images
Figure CN223678826U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle testing technical field, especially a tool for vehicle test. BACKGROUND
[0002] At present, when testing truck handling stability, sandbags need to be piled up in the cargo box for counterweight, but due to the scattering of sandbags, the cargo box floor is relatively smooth, and when performing vehicle dynamic testing (steady-state rotation, angle step, intermediate steering, straight-line acceleration and braking, etc.), the sandbags are prone to sliding forward and backward / left and right, thereby affecting the vehicle axle load and wheel load, resulting in a large error in handling stability testing. SUMMARY
[0003] The first technical problem to be solved by the utility model is to provide a vehicle testing tool that can fix the counterweight sandbags, so that the sandbags can be as stationary as possible during truck handling stability dynamic testing, ensuring that the vehicle axle load and wheel load remain unchanged before and after testing, reducing testing errors, and adapting to a wide range of vehicle testing.
[0004] The technical solution adopted by the utility model to solve the above first technical problem is: a tool for vehicle testing, comprising:
[0005] The fixing frame comprises a plurality of first square tubes, and the plurality of first square tubes are arranged longitudinally and transversely to form a plurality of first positioning grids for limiting the sandbags;
[0006] The expansion assembly comprises an expansion piece corresponding to each first square tube, and each expansion piece is detachably connected to the corresponding first square tube. By controlling the relative position of each expansion piece and the first square tube, the size of the tool can be adjusted.
[0007] According to an embodiment of the utility model, each expansion piece comprises two second square tubes arranged at both ends of the first square tube inside. The second square tube and the first square tube are gap-fitted and can slide in and out along the axis of the first square tube. By adjusting the distance of the second square tube sliding out, the multiple directions of the fixing frame can be extended.
[0008] According to an embodiment of the utility model, in the plurality of second square tubes, one end of part of the second square tubes is connected to the first square tube, and the other end extends away from the first square tube; the other part of the second square tubes can slide out of the first square tube and then connect with part of the second square tubes to form a second positioning grid for limiting the sandbags.
[0009] According to an embodiment of the utility model, it further comprises a limiting structure for limiting the relative position of each second square tube and the first square tube.
[0010] According to an embodiment of the utility model, wherein, the limiting structure includes the positioning pin corresponding to each second square tube, the first limiting hole of first square tube, the multiple second limiting holes of second square tube, wherein, the positioning pin can insert the first limiting hole and the second limiting hole, realize the connection of second square tube and first square tube.
[0011] According to an embodiment of the utility model, wherein, the positioning pin still can insert two second limiting holes of upper and lower coincidence, realize the fixation of two second square tubes of mutual intersection.
[0012] According to an embodiment of the utility model, wherein, first limiting hole is multiple, and multiple first limiting hole is along the axial direction of first square tube equidistance distribution, multiple second limiting hole is along the axial direction of second square tube equidistance distribution, wherein, the hole distance between multiple second limiting hole and the hole distance between corresponding multiple first limiting hole is same.
[0013] According to an embodiment of the utility model, wherein, the limiting structure still includes the limiting block connected to one end of second square tube, the limiting block can along with second square tube to first square tube movement and abuts on the outside of first square tube, to carry out the limiting of the installation of second square tube.
[0014] According to an embodiment of the utility model, wherein, one end of second square tube is connected with pull structure, and the second square tube is slid into or slid out of first square tube by pulling pull structure.
[0015] According to an embodiment of the utility model, wherein, the pull structure includes the puller of being fixed to the inner wall of second square tube, and the puller can be one of connecting rod, connecting block or pull ring.
[0016] Compared with prior art, the utility model has following advantages or beneficial effects:
[0017] The utility model discloses a plurality of first positioning grid is set to limit the sandbag for counterweight, so that sandbag can realize position immobile as far as possible when truck operation dynamic test, guarantee vehicle axle load and wheel load unchanged before and after test, reduce test error, through the expansion component to adjust the size of tooling, so that the tooling can adapt to different size's goods box, increase its application range. BRIEF DESCRIPTION OF DRAWINGS
[0018] The above and other features and advantages of the present application will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings in which:
[0019] Figure 1is a top view of a tool for vehicle testing according to an exemplary embodiment.
[0020] Figure 2 is a first state diagram of a tool for vehicle testing according to an exemplary embodiment.
[0021] Figure 3 is Figure 2 is an enlarged schematic view at A in Fig.
[0022] Figure 4 is a second state diagram of a tool for vehicle testing according to an exemplary embodiment.
[0023] BRIEF DESCRIPTION OF DRAWINGS
[0024] 1, fixed frame; 11, first square tube; 110, first positioning grid; 111, horizontal tube; 112, vertical tube;
[0025] 2, expansion assembly; 21, expansion piece; 211, second square tube;
[0026] 3, limiting structure; 31, first limiting hole; 32, second limiting hole; 33, limiting block;
[0027] 4, pulling structure; 41, pulling piece. DETAILED DESCRIPTION
[0028] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and thus description of the same will be omitted.
[0029] The terms "one", "a", "the", "said", "at least one", "one or more", and "at least one of", are used to mean that there is one or more than one of the elements / components / etc. The terms "comprising", "having", "including", and "containing" are used to mean "including but not limited to" and permit the presence of other elements / components / etc. in addition to the listed elements / components / etc.
[0030] The utility model embodiment provides a kind of tool for vehicle testing, such as Figures 2-4As shown, the tooling includes a fixed frame 1 and an expansion assembly 2, the fixed frame 1 includes a plurality of first square tubes 11, the expansion assembly 2 includes an expansion piece 21 corresponding to each first square tube 11, the plurality of first square tubes 11 are arranged longitudinally and transversely to form a plurality of first positioning grids 110 for limiting sandbags, the expansion piece 21 is detachably connected to each first square tube 11, and the size of the tooling is adjusted by controlling the relative position of each expansion piece 21 and the first square tube 11. The first positioning grid 110 in the application can bear and fix the sandbag for counterweight, the first positioning grid 110 can be a rectangle or a square, and is preferably a square, the internal side length of the first positioning grid 110 is less than or equal to the minimum side length of the sandbag, that is, the sandbag is just inserted into the inside of the first positioning grid 110, or the sandbag is mostly inserted into the inside of the first positioning grid 110, and as the tooling is filled with sandbags, a second layer and a third layer are continuously placed upwards until the designed load is reached. Since the first positioning grid 110 can fix the sandbag to make the sandbag as stationary as possible, the vehicle axle load and wheel load can be ensured unchanged before and after the dynamic test of the truck, and the test error is effectively reduced. In addition, since each first square tube 11 is detachably connected with the expansion piece 21, the size of the tooling is adjusted and controlled by adjusting and controlling the relative position of each expansion piece 21 and the first square tube 11, so that the tooling can adapt to different sizes of the cargo box, the use range is wide, the test accuracy can be ensured, and the purpose of reducing cost and increasing efficiency is achieved.
[0031] In a preferred embodiment of the present application, as shown in Figures 1-4 Each expansion piece 21 includes two second square tubes 211 arranged at both ends in the inside of the first square tube 11, the second square tube 211 is in clearance fit with the first square tube 11 and can slide in and out along the axis of the first square tube 11, and the plurality of directions of the fixed frame 1 are extended by adjusting the sliding distance of the second square tube 211. That is, each second square tube 211 can slide in the corresponding first square tube 11, for a standard cargo box, that is, the size of the cargo box is the same as the size of the fixed frame 1, at this time, the second square tube 211 is generally inserted into the inside of the first square tube 11; as the size of the cargo box increases, part or all of the second square tube 211 is pulled outwards, and the plurality of second square tubes 211 form an extension of the fixed frame 1, increase the size of the tooling, and meet the size requirements of different cargo boxes. Therefore, the fixed frame 1 can be extended by pulling out the second square tube 211 to adapt to different sizes of the cargo box. At the same time, the insertion of the second square tube 211 into the first square tube 11 can also increase the carrying capacity of the fixed frame 1.
[0032] In a preferred embodiment of the present application, as shown in Figures 1-4The second square tubes 211 are shown in multiple, one end of part of the second square tubes 211 is connected to the first square tube 11, and the other end extends away from the first square tube 11; another part of the second square tubes 211 can slide out of the first square tube 11 and then part of the second square tubes 211 are connected again to form a second positioning grid for limiting the sandbags. For some super large containers, part of the second square tubes 211 can be pulled out, and another part of the second square tubes 211 can slide out of the first square tube 11 and then part of the second square tubes 211 are connected again to form multiple second positioning grids for limiting the sandbags. In this way, the size of the tooling is increased, and new second positioning grids for limiting the position of the sandbags are also increased, avoiding the problem of movement of the sandbags during testing and ensuring the accuracy of the test results.
[0033] In an preferred embodiment of the utility model, as shown in Figures 1-4 The tooling for vehicle testing also includes a limiting structure 3 for limiting the relative position of each second square tube 211 and the first square tube 11. Whether the second square tube 211 is inserted into the inside of the first square tube 11 or is pulled out to the outside of the fixing frame 1 for reassembly, the limiting structure 3 is needed to fix and limit the second square tube 211, so that the size of the tooling can be flexibly adjusted to meet the testing needs of different containers.
[0034] In an preferred embodiment of the utility model, as shown in Figures 1-4 The limiting structure 3 includes a positioning pin corresponding to each second square tube 211, a first limiting hole 31 opened in the first square tube 11, and multiple second limiting holes 32 opened in the second square tube 211, wherein the positioning pin can be inserted into the first limiting hole 31 and the second limiting hole 32 to realize the connection of the second square tube 211 and the first square tube 11; for another part of the standard container, the above-mentioned second square tube 211 is completely inserted into the inside of the first square tube 11, at which time the positioning pin can be inserted into the first limiting hole 31 and the second limiting hole 32. In this application, the positioning pin is inserted into the first limiting hole 31 and the second limiting hole 32 to realize the fixation of the second square tube 211 and the first square tube 11, preventing the second square tube 211 from sliding inside the first square tube 11.
[0035] In addition, the number of the first limiting hole 31 is greater than or equal to 1, when the first limiting hole 31 is 1, it needs to be arranged at the inlet and outlet end of the first square tube 11, by making the multiple second limiting holes 32 and the first limiting hole 31 coincide, the adjustment of the second square tube 211 is realized. Of course, the number of the first limiting hole 31 can also be multiple or even the same as the number of the second square tube 211, as long as it can limit the second square tube 211, which is not limited in this application.
[0036] In an preferred embodiment of the utility model, as shown in Figures 1-4The positioning pin shown can also be inserted into two second limiting holes 32 that are vertically aligned to fix two second square tubes 211 that intersect each other. For some cases where the size of the container is large, especially when the length is too long or the width is too wide, the second square tube 211 needs to be pulled out to the maximum. Since the length of the second square tube 211 is much larger than the side length of the sandbag, it is necessary to further divide the second square tube 211 that is pulled out to the maximum into multiple second positioning grids for fixing the sandbag. At this time, the multiple second square tubes 211 are divided into two types, namely multiple second square tubes a connected to the first square tube 11 and multiple second square tubes b completely slid out of the first square tube 11. The second square tube b and the second square tube a intersect each other and are fixed by using the positioning pin. At this time, the positioning pin only needs to be inserted into two second limiting holes 32 that are vertically aligned on the second square tube b and the second square tube a to fix two second square tubes 211 that intersect each other, which is simple and fast to operate. At the same time, the multiple second square tubes 211 can further form multiple second positioning grids for fixing the sandbag, preventing the sandbag from moving during the truck test.
[0037] In an preferred embodiment of the utility model, as shown in Figures 1-4 The first limiting hole 31 is multiple, and the multiple first limiting holes 31 are distributed at equal intervals along the axial direction of the first square tube 11. The multiple second limiting holes 32 are distributed at equal intervals along the axial direction of the second square tube 211. The hole distance between the multiple second limiting holes 32 is the same as the hole distance between the corresponding multiple first limiting holes 31. The number of the first limiting hole 31 in the embodiment is greater than or equal to 2. When the second square tube 211 is installed, the positioning pin can be inserted into the innermost first limiting hole 31 to prevent the second square tube 211 from sliding into the other end of the first square tube 11 and affecting the installation of the other second square tube 211. When the second square tube 211 abuts against the positioning pin, the positioning pin can be pulled out. After the relative positions of the first square tube 11 and the second square tube 211 are corrected, the positioning pin 31 is inserted into the first limiting hole 31 and the second limiting hole 32. Preferably, the number of the multiple second limiting holes 32 is the same as the number of the multiple first limiting holes 31 and one-to-one correspondence. The operator only needs to select one to install in the coincident second limiting hole 32 and the first limiting hole, which is convenient for flexible selection according to the site conditions and convenient and fast installation.
[0038] Preferably, the first square tube 11 and the second square tube 211 are both square steel with a thickness of 2mm, for example, the first square tube 11 can be selected as 30*30mm square steel, and the second square tube 211 can be 25*25mm square steel, a plurality of first square tubes 11 are cross-connected to form a grid with a plurality of first positioning grids 110, which can be divided into horizontal pipes 111 arranged horizontally and vertical pipes 112 perpendicular to the horizontal pipes 111, the vertical pipes 112 are provided with a plurality of first limiting holes 31 at equal intervals, and the horizontal pipes 111 are provided with a plurality of first limiting holes 31 at equal intervals. Among them, the drilling interval on the vertical pipe 112 can be greater than or equal to the drilling interval of the horizontal pipe 111, which can avoid excessive drilling of the vertical pipe 112 to reduce the strength of the first square tube 11, thereby affecting the carrying capacity of the whole tool. Of course, in some cases, the drilling interval on the vertical pipe 112 can also be less than the drilling interval of the horizontal pipe 111, as long as it meets the size adjustment range of the corresponding container.
[0039] In one preferred embodiment of the utility model, the limiting structure 3 as shown in the figure further includes a limiting block 33 connected to one end of the second square tube 211, the limiting block 33 can move with the second square tube 211 to the first square tube 11 and abut the outside of the first square tube 11 to limit the installation of the second square tube 211. In this way, during installation, the limiting block 33 can prevent the second square tube 211 from completely sliding into the first square tube 11, and is used for limiting the maximum installation position of the second square tube 211, and simplifies the installation process of the second square tube 211. Figures 1-4
[0040] In one preferred embodiment of the utility model, the second square tube 211 as shown in the figure is connected with a pulling structure 4, and the second square tube 211 is driven to slide into or out of the first square tube 11 by pulling the pulling structure 4. The pulling efficiency of the second square tube 211 can be effectively improved by the pulling structure 4, and the test progress is accelerated. Figures 1-4
[0041] In one preferred embodiment of the utility model, the pulling structure 4 as shown in the figure includes a pulling piece 41 fixed to the inner wall of the second square tube 211, and the pulling piece 41 can be one of a connecting rod, a connecting block or a pull ring. The pulling structure 4 can further include a pull rope matched with the pulling piece 41, and the pull rope can be connected to the pulling piece. The operator pulls the second square tube 211 outward through the pull rope and the pulling piece 41, improving the convenience of operation. In addition, the pulling structure 4 can further include a pull hook, and the pull hook can be hung on the connecting rod, the connecting block and the pull ring. By pulling outward, the second square tube 211 can be pulled out. In addition, a via hole matched with the pull hook can be formed on the connecting rod and the connecting block to facilitate cooperation with the pull hook. Figures 1-4 Specifically:
[0042]
[0043] The tool for vehicle test comprises a plurality of first square tubes 11 and a plurality of second square tubes 211, wherein the first square tube 11 is a square steel with a size of 30*30mm, the second square tube 211 is a square steel with a size of 25*25mm, and the thickness of the first square tube 11 and the second square tube 211 is 2mm; during installation, the first square tube 11 is nested on the outer periphery of the second square tube 211, wherein the plurality of first square tubes 11 are respectively 4 square steels with a length of 2m and 8 square steels with a length of 1.2m, the plurality of second square tubes 211 are respectively 8 square steels with a length of 0.9m and 16 square steels with a length of 0.5m, and different square steels are arranged in the mode shown in Figures 1 and 3; wherein the inner diameter of the second limiting hole 32 and the first limiting hole 31 is 10mm, the drilling hole spacing of the vertical tube 2111 is 60mm, and the drilling hole spacing of the horizontal tube 112 is 50mm; of course, the drilling hole spacing of the vertical tube 2111 and the drilling hole spacing of the horizontal tube 112 can also be any value between 10mm and 200mm, and the specific value can be selected according to the size of the cargo compartment of different series of vehicles, which is not limited in the present application.
[0044] In the present application, the intersecting parts of the plurality of first square tubes 11 are fixed by welding, and the size of the fixing frame 1 formed by the plurality of first square tubes 11 is 2m*1.2m, which can meet the current minimum truck cargo compartment size requirement; if the size of the truck cargo compartment increases, the nested second square tube 211 can be pulled out to match the actual cargo compartment size; in order to fix the nested square steels after being pulled out, a bolt or a pin can be inserted into the drilling hole of the square steel to prevent the relative movement of the square steels. The tool of the present application can be suitable for trucks with a cargo compartment size of about 2m-3.7m in length and 1.2m-1.9m in width, and the size of the tool can be adjusted by pulling out the second square tube 211 to adapt to different sizes of cargo compartments.
[0045] In the embodiments of the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited. The terms "mounting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integral connection. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0046] In the description of the embodiments of the present application, it should be understood that the positions or position relationships indicated by the terms "upper", "lower" and the like are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or units referred to must have a specific direction, be constructed and operated in a specific position, and therefore cannot be understood as limiting the embodiments of the present application.
[0047] In the description of the present specification, the description of the terms "one embodiment", "one preferred embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0048] The above is only the preferred embodiment of the present application, and is not intended to limit the embodiments of the present application. For those skilled in the art, the embodiments of the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.
Claims
1. A tooling for vehicle testing, characterized by, The utility model relates to a sandbag fixing frame, comprising: a fixed frame (1) comprising a plurality of first square tubes (11), the plurality of first square tubes (11) are arranged longitudinally and transversely to form a plurality of first positioning grids (110) for limiting sandbags; an expansion assembly (2) comprising an expansion piece (21) corresponding to each first square tube (11), each expansion piece (21) being detachably connected to the corresponding first square tube (11), and the size of the tool being adjusted by controlling the relative position of each expansion piece (21) and the first square tube (11).
2. The tooling for vehicle testing of claim 1, wherein, Each expansion piece (21) comprises two second square tubes (211) arranged at both ends inside the first square tube (11), the second square tube (211) and the first square tube (11) being in clearance fit and being slidable in and out along the axis of the first square tube (11), and the expansion of the plurality of directions of the fixed frame (1) being facilitated by adjusting the distance of the second square tube (211) sliding out.
3. The tooling for vehicle testing of claim 2, wherein, Among the plurality of second square tubes (211), one end of part of the second square tubes (211) is connected to the first square tube (11), and the other end extends away from the first square tube (11); the other part of the second square tubes (211) can be slid out of the first square tube (11), and part of the second square tubes (211) are connected again to form a second positioning grid for limiting the sandbag.
4. The tooling for testing of vehicles of claim 2, wherein, Further comprising a limiting structure (3) for limiting the relative position of each second square tube (211) and the first square tube (11).
5. The tooling for testing of vehicles of claim 4, wherein, The limiting structure (3) comprises a positioning pin corresponding to each second square tube (211), a first limiting hole (31) opened in the first square tube (11), and a plurality of second limiting holes (32) opened in the second square tube (211), wherein the positioning pin can be inserted into the first limiting hole (31) and the second limiting hole (32) to realize the connection of the second square tube (211) and the first square tube (11).
6. The tooling for testing of vehicles of claim 5, wherein, The positioning pin can also be inserted into two second limiting holes (32) that are vertically coincident to realize the fixation of two second square tubes (211) that intersect with each other.
7. The tooling for testing of vehicles of claim 5, wherein, The first limiting hole (31) is a plurality of first limiting holes (31) that are equally spaced along the axis of the first square tube (11), and the plurality of second limiting holes (32) are equally spaced along the axis of the second square tube (211), wherein the hole distance between the plurality of second limiting holes (32) is the same as the hole distance between the corresponding plurality of first limiting holes (31).
8. The tooling for testing of vehicles of claim 4, wherein, The limiting structure (3) further comprises a limiting block (33) connected to one end of the second square tube (211), the limiting block (33) being capable of moving towards the first square tube (11) along with the second square tube (211) and abutting against the outside of the first square tube (11) to limit the installation of the second square tube (211).
9. The tooling for testing of vehicles of claim 2, wherein, One end of the second square tube (211) is connected with a pulling structure (4), and the second square tube (211) is driven to slide into or out of the first square tube (11) by pulling the pulling structure (4).
10. The tooling for vehicle testing of claim 9, wherein, The pulling structure (4) comprises a pulling piece (41) fixed to the inner wall of the second square tube (211), and the pulling piece (41) can be one of a connecting rod, a connecting block or a pull ring.