Semitrailer wheelbase measuring device
By designing a semi-trailer wheelbase measurement device including a laser ranging module and a slider, the lack of tools suitable for personal precise measurement in the prior art is solved, and wheelbase measurement with high accuracy, low cost and portability is achieved.
Patent Information
- Application Number
- CN202422166347.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-04
AI Technical Summary
There is a lack of tools suitable for individuals to accurately measure the wheelbase of semi-trailer in the prior art, including high-cost and large-sized laser four-wheel positioning devices, as well as box ruler measurement methods with poor accuracy.
A semi-trailer wheelbase measurement device is designed, including a first linear guide rail, a first slider, a laser ranging module, a first positioning tip, a connecting rod, a second linear guide rail, a second slider, a laser reflection assembly and a second positioning tip. Through the cooperation of the laser ranging module and the laser reflection assembly, combined with the adjustment of the slider and a linear guide rail, the wheelbase is accurately measured.
The device can measure the wheelbase quickly and accurately, with simple structure, high accuracy, low cost, and easy to disassemble and carry, making it very suitable for personal use or temporary inspection.
Smart Images
Figure CN223037102U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of detection equipment, and more specifically, relates to a semi-trailer wheelbase measuring device. Background Technique
[0002] The wheelbase of a trailer has a very important impact on the driving stability, controllability, and tire wear of the trailer. Therefore, wheelbase measurement is a necessary task. During the measurement process, it is necessary to select a suitable measuring tool, abide by the measurement standards and precautions to ensure accurate measurement results. Currently, the mainstream method for measuring the wheelbase of a semi-trailer is to use a laser four-wheel alignment device. This device is large in size and has strict requirements for the usage state, with a high overall cost. It is only used in some repair shops and trailer manufacturing factories, and is hardly used by individuals. There is also a method of directly using a tape measure to measure the wheelbase. Although the cost is low and it is flexible to use, this method is convenient but has poor accuracy. Content of the Utility Model
[0003] The purpose of the utility model is to provide a semi-trailer wheelbase measuring device to solve the technical problem in the prior art that there is no suitable way for individuals to accurately measure the wheelbase of a trailer.
[0004] To achieve the above object, the technical solution adopted by the utility model is: to provide a semi-trailer wheelbase measuring device, including a first linear guide rail, a first slider, a laser distance measuring module, a first positioning center, a connecting rod, a second linear guide rail, a second slider, a laser reflection component, and a second positioning center. The first slider is slidably arranged on the first linear guide rail; the laser distance measuring module is arranged on the first slider; the first positioning center is arranged on the first slider for positioning the first position to be measured; one end of the connecting rod is detachably connected to one end of the first linear guide rail; one end of the second linear guide rail is detachably connected to the other end of the connecting rod; the second slider is slidably arranged on the second linear guide rail; the laser reflection component is arranged on the second slider to cooperate with the laser distance measuring module to reflect the laser emitted by the laser distance measuring module; the second positioning center is arranged on the second slider for positioning the second position to be measured.
[0005] Combined with the above technical solution, in a possible implementation manner, retaining rings are arranged at the outer ends of the first linear guide rail and the second linear guide rail.
[0006] Combined with the above technical solution, in a possible implementation manner, the first linear guide rail and the connecting rod, and the second linear guide rail and the connecting rod are both connected through a threaded structure.
[0007] Combined with the above technical solution, in a possible implementation manner, the connecting rod is a tubular structure, and internal threads are arranged at both ends. External threads matching the internal threads are arranged at the ends of the first linear guide rail and the second linear guide rail.
[0008] In a possible implementation manner in combination with the above technical solution, the laser ranging module is fixed on the first slider by bolts; the laser reflection component is fixed on the second slider by bolts.
[0009] In a possible implementation manner in combination with the above technical solution, the first positioning center point and the first slider, and the second positioning center point and the second slider are both connected by a threaded structure.
[0010] In a possible implementation manner in combination with the above technical solution, two snap structures are provided on the retaining rings of the first linear guide rail and the second linear guide rail. One of the snap structures is used for snap-fixing with the end of the disassembled connecting rod, and the other snap structure is used for snap-fixing with the end of the disassembled first linear guide rail or the disassembled second linear guide rail.
[0011] In a possible implementation manner in combination with the above technical solution, the connection between the retaining ring and the first linear guide rail or the second linear guide rail and the two snap structures are arranged in a ring shape.
[0012] In a possible implementation manner in combination with the above technical solution, a display screen is provided on the laser ranging module.
[0013] The beneficial effects of the semi-trailer wheelbase measuring device provided by the present utility model are as follows: Compared with the prior art, when the present utility model is used, after connecting the first linear guide rail, the connecting rod and the second linear guide rail together, the laser ranging module and the laser reflection component are aligned; then, by adjusting the positions of the first slider and the second slider, the first positioning center point and the second positioning center point are respectively aligned with the trailer axle end cover, the axle center and other positions to be measured; then, by reading the distance data through the laser ranging module, a relatively accurate wheelbase can be obtained; in this way, the wheelbase can be measured conveniently, quickly and accurately. The device structure is relatively simple, and relatively high precision can be obtained. Moreover, the cost of the whole device is relatively low, and it can also be disassembled to facilitate transportation and storage, thereby improving portability and being very suitable for personal use or temporary inspection use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0015] Figure 1 It is a schematic structural diagram of a semi-trailer wheelbase measuring device provided by an embodiment of the present utility model;
[0016] Figure 2Schematic side view of the buckle structure part after disassembly of the semi-trailer wheelbase measuring device provided by another embodiment of the present utility model.
[0017] Among them, the reference numerals in the figure are as follows:
[0018] 10. First linear guide; 11. Retaining ring; 12. Buckle structure;
[0019] 20. First slider; 30. Laser distance measuring module; 40. First positioning center; 50. Connecting rod;
[0020] 60. Second linear guide; 70. Second slider; 80. Laser reflection component; 90. Second positioning center. Detailed implementation mode
[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0022] It should be further noted that the drawings and embodiments of the present utility model mainly describe and explain the concept of the present utility model. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present utility model, those skilled in the art can adopt well-known methods to implement the above specific forms and settings.
[0023] When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0024] The directional terms "inside" and "outside" refer to the inside and outside relative to the outline of each component itself. The directional or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.
[0025] For the sake of convenience in description, spatial relative terms such as "above", "over", "on the upper surface of", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways, and corresponding interpretations should be made for the spatial relative descriptions used here.
[0026] The terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, and "several" means one or more, unless otherwise specifically defined.
[0027] Now, the semi-trailer wheelbase measuring device provided by the present utility model will be described.
[0028] Such as Figure 1 And Figure 2As shown in the figure, the semi-trailer wheelbase measuring device provided by the first embodiment of the present utility model includes a first linear guide rail 10, a first slider 20, a laser distance measuring module 30, a first positioning center 40, a connecting rod 50, a second linear guide rail 60, a second slider 70, a laser reflection assembly 80 and a second positioning center 90. The first slider 20 is slidably arranged on the first linear guide rail 10; the laser distance measuring module 30 is arranged on the first slider 20; the first positioning center 40 is arranged on the first slider 20 for positioning the first position to be measured; one end of the connecting rod 50 is detachably connected to one end of the first linear guide rail 10; one end of the second linear guide rail 60 is detachably connected to the other end of the connecting rod 50; the second slider 70 is slidably arranged on the second linear guide rail 60; the laser reflection assembly 80 is arranged on the second slider 70 to cooperate with the laser distance measuring module 30 to reflect the laser emitted by the laser distance measuring module 30; the second positioning center 90 is arranged on the second slider 70 for positioning the second position to be measured.
[0029] Compared with the prior art, when the semi-trailer wheelbase measuring device provided in this embodiment is in use, after connecting the first linear guide rail 10, the connecting rod 50 and the second linear guide rail 60 together, the laser distance measuring module 30 is aligned with the laser reflection assembly 80; then, by adjusting the positions of the first slider 20 and the second slider 70, the first positioning center 40 and the second positioning center 90 are respectively aligned with the axle end cover of the trailer, the axle center and other positions to be measured; then, by reading the distance data through the laser distance measuring module 30, a relatively accurate wheelbase can be obtained; in this way, the wheelbase can be measured conveniently, quickly and accurately. The device not only has a relatively simple structure, but also can obtain relatively high accuracy, and the cost of the whole device is relatively low. It can also be disassembled to facilitate transportation and storage, thereby improving portability and being very suitable for personal use or temporary inspection use.
[0030] As Figure 1 and 2 shown, a specific embodiment provided by the present utility model on the basis of the first embodiment is as follows.
[0031] The first linear guide rail 10 and the connecting rod 50, and the second linear guide rail 60 and the connecting rod 50 are both connected through a threaded structure to facilitate installation and disassembly and ensure firmness after installation.
[0032] In a specific embodiment, the connecting rod 50 is a tubular structure, and internal threads are provided at both ends. External threads matching the internal threads are provided at the ends of the first linear guide rail 10 and the second linear guide rail 60. This can not only reduce the overall weight, but also facilitate installation and disassembly, and different lengths of the trailer can be measured by replacing the connecting pipe 50 with different lengths.
[0033] The laser distance measuring module 30 is fixed on the first slider 20 by bolts; the laser reflecting assembly 80 is fixed on the second slider 70 by bolts to ensure the reliability of the fixation and help reduce the production cost.
[0034] The first positioning tip 40 and the first slider 20 , as well as the second positioning tip 90 and the second slider 70 , are connected via a threaded structure.
[0035] The laser distance measuring module 30 is provided with a display screen for directly reading the distance. The display screen can be integrally arranged on the laser distance measuring module 30, or can be fixed on the first slider 20 and connected to the laser distance measuring module 30 via a data line.
[0036] like Figure 1 and Figure 2 As shown, in some embodiments, the outer ends of the first linear guide 10 and the second linear guide 60 are both provided with a retaining ring 11 to prevent the first slider 20 and the second slider 70 from slipping. The retaining ring 11 can be connected to the first linear guide 10 or the second linear guide 60 by welding, threaded structure or clamping structure.
[0037] Furthermore, two snap-fit structures 12 are provided on the retaining ring 11 on the first linear guide 10 and the second linear guide 60, one of the snap-fit structures 12 is used to be snap-fitted and fixed to the end of the disassembled connecting rod 50, and the other snap-fit structure 12 is used to be snap-fitted and fixed to the end of the disassembled first linear guide 10 or the disassembled second linear guide 60, so that the first linear guide 10, the second linear guide 60 and the connecting rod 50 are fixed together for easy carrying.
[0038] Furthermore, the connection between the retaining ring 11 and the first linear guide 10 or the second linear guide 60 and the two snap-fit structures 12 are arranged in a ring shape, so that the first linear guide 10, the second linear guide 60 and the connecting rod 50 can be arranged in parallel in a triangle, and the laser ranging module 30 and the laser reflection component 80 can face the inside of the triangle to be protected and avoid damage due to bumps during transportation and storage.
[0039] The wheelbase measuring device provided by the utility model has the following advantages.
[0040] ① Low cost: It mainly adopts machining method, the overall size of the device is small, the interchangeability is high, and the cost is low. The cost of the whole set of equipment is only equivalent to the price of 1-2 four-wheel alignment;
[0041] ②Easy to operate: This device only needs to place the trailer on a flat road surface, and use the positioning shaft to support the positioning hole of the axle head to measure the wheelbase of the two axles. It is easy to operate;
[0042] ③Precise measurement: This device uses a laser ranging module to measure the wheelbase, and can directly display the measured distance, reducing the error of manual reading. It has high measurement accuracy, small measurement error, and more precise measurement;
[0043] ④Small size and strong portability: This device is disassembled into several small components and can be assembled during use. After disassembly, it has a small size and is easy to carry;
[0044] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
[0045] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0046] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the sake of convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
Claims
1. A semitrailer wheelbase measuring device, characterized in that: include: A first linear guide rail (10); A first sliding block (20) slidably disposed on the first linear guide rail (10); A laser distance measurement module (30) is arranged on the first sliding block (20); A first positioning tip (40) is provided on the first sliding block (20) and is used to locate a first position to be measured; A connecting rod (50), one end of which is detachably connected to one end of the first linear guide rail (10); A second linear guide rail (60), one end of which is detachably connected to the other end of the connecting rod (50); A second sliding block (70) slidably disposed on the second linear guide rail (60); A laser reflection component (80) is provided on the second sliding block (70) to cooperate with the laser distance measuring module (30) to reflect the laser light emitted by the laser distance measuring module (30); The second positioning top (90) is arranged on the second sliding block (70) and is used to position the second position to be measured.
2. The semitrailer wheelbase measuring device according to claim 1, characterized in that: The outer ends of the first linear guide rail (10) and the second linear guide rail (60) are both provided with retaining rings (11).
3. The semitrailer wheelbase measuring device according to claim 1, characterized in that: The first linear guide rail (10) and the connecting rod (50), as well as the second linear guide rail (60) and the connecting rod (50), are both connected via a threaded structure.
4. The semitrailer wheelbase measuring device according to claim 3, characterized in that: The connecting rod (50) is a tubular structure and is provided with internal threads at both ends, and the ends of the first linear guide rail (10) and the second linear guide rail (60) are provided with external threads that match the internal threads.
5. The semitrailer wheelbase measuring device according to claim 1, characterized in that: The laser distance measuring module (30) is fixed to the first sliding block (20) by means of bolts; and the laser reflection component (80) is fixed to the second sliding block (70) by means of bolts.
6. The semitrailer wheelbase measuring device according to claim 1, characterized in that: The first positioning tip (40) and the first sliding block (20), as well as the second positioning tip (90) and the second sliding block (70) are connected via a threaded structure.
7. The semitrailer wheelbase measuring device according to claim 2, characterized in that: Two snap-fit structures (12) are provided on the retaining ring (11) on the first linear guide (10) and the second linear guide (60), wherein one snap-fit structure (12) is used to snap-fit and fix with the end of the disassembled connecting rod (50), and the other snap-fit structure (12) is used to snap-fit and fix with the end of the disassembled first linear guide (10) or the disassembled second linear guide (60).
8. The semitrailer wheelbase measuring device according to claim 7, characterized in that: The connection between the retaining ring (11) and the first linear guide rail (10) or the second linear guide rail (60) and the two snap structures (12) are arranged in a ring shape.
9. The semitrailer wheelbase measuring device according to claim 1, characterized in that: The laser distance measurement module (30) is provided with a display screen.