Chassis height measuring device
By designing a chassis height measuring device that automatically locates the lowest point of the vehicle using a laser and a light meter, the problems of high labor intensity for measurement personnel and vehicle damage have been solved, achieving safe and efficient measurement.
Patent Information
- Application Number
- CN202520689188.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-11
AI Technical Summary
In existing technologies, measuring the minimum ground clearance of a vehicle involves high labor intensity for the measuring personnel, and the measuring fixtures can easily damage the vehicle.
Design a chassis height measuring device, including a base, a lifting component, a positioning component, and a detection component. The device automatically finds the lowest point of the vehicle using a laser and a light meter or ruler, avoiding the need for manual measurement by lying down. The lifting component moves the positioning component to obtain the distance from the lowest point to the support surface.
It reduces the workload of surveyors, avoids direct contact damage to vehicles, and improves the safety and accuracy of measurements.
Smart Images

Figure CN223940178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automobile manufacturing technology, and in particular to a chassis height measuring device. Background Technology
[0002] During the vehicle manufacturing process, one of the indicators is to measure the vehicle's minimum ground clearance, which is the distance between the lowest point of the chassis and the supporting plane when the vehicle is fully loaded and stationary, and whether it meets the GB requirements.
[0003] In existing technologies, mainstream automobile manufacturers primarily use a two-person operation to measure the lowest ground clearance. One person lies on the ground to locate the lowest point under the vehicle chassis and then uses a needle gauge to measure its position; the other person reads and records the data. Prolonged lying down can easily lead to lumbar muscle strain for the measurer; contact between the body (head, arms) and the vehicle can cause injury; and the needle of the needle gauge is sharp, posing a risk of damage to the vehicle's chassis components during movement. Utility Model Content
[0004] The main purpose of this utility model is to propose a chassis height measuring device, which aims to solve the technical problems in the prior art where the labor intensity of the measuring personnel is high when measuring the minimum ground clearance of a vehicle, and the measuring fixture is prone to damage to the vehicle.
[0005] To achieve the above objectives, the chassis height measuring device proposed in this utility model includes:
[0006] Base;
[0007] A lifting assembly, wherein the lifting assembly is mounted on the base;
[0008] A positioning component is movably mounted on the lifting component, and the positioning component is used to detect the lowest point of the object to be measured.
[0009] A detection element is disposed on one side of the lifting assembly, and the detection element is used to detect the height of the positioning assembly on the lifting assembly.
[0010] In one embodiment, the positioning component includes:
[0011] A laser device, wherein the laser device is vertically and vertically mounted on the lifting assembly;
[0012] A light meter plate is disposed on one side of the base to form a detection area for accommodating the object to be tested between the laser and the light meter plate, wherein the detection direction of the laser is toward the light meter plate.
[0013] In one embodiment, the laser instrument is used to emit a linear laser beam extending parallel to the horizontal direction, and the photometer plate is used to receive and display the linear laser beam emitted by the laser instrument.
[0014] Specifically, the laser is driven to move upward along the lowest point of the lifting assembly until one or more breakpoints are formed on the straight laser on the photometer plate, thus determining that the laser is level with the lowest point of the object being measured.
[0015] In one embodiment, the lifting assembly includes:
[0016] The fastener is disposed on the base;
[0017] An internally threaded rod, the bottom of which is rotatably mounted on the fixing member, and the top of which extends toward the side opposite to the base;
[0018] The slide frame is mounted on the internally threaded rod, and the positioning assembly is mounted on the slide frame.
[0019] A drive element is disposed at the top of the internally threaded rod to drive the internally threaded rod to rotate.
[0020] In one embodiment, the driving element is a hand crank.
[0021] In one embodiment, the slide frame is arranged in an "L" shape.
[0022] In one embodiment, the base and the fixing member are integrally formed.
[0023] In one embodiment, the lifting assembly further includes a drive motor, the drive shaft of which is connected to the top of the internally threaded rod.
[0024] In one embodiment, the detection element is a ruler, which is disposed in close contact with the internal threaded rod.
[0025] In one embodiment, the lifting assembly further includes a protective cover fitted onto the internally threaded rod.
[0026] The technical solution of this utility model places both the base and the object to be tested on a supporting surface. The lowest point of the object is found by moving the positioning component up and down on the lifting assembly. Once the lowest point of the object is determined, the distance from the lowest point of the object to the supporting surface can be directly obtained through the detection component. This eliminates the need for the person measuring to bend down and avoids direct contact with the object, reducing the risk of damage. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0028] Figure 1 A schematic diagram of the chassis height measuring device provided by this utility model;
[0029] Figure 2 A schematic diagram of the testing process of the chassis height measuring device provided by this utility model;
[0030] Figure 3 A schematic diagram of a test result in the chassis height measuring device provided by this utility model;
[0031] Figure 4 This is a schematic diagram of another test result in the chassis height measuring device provided by this utility model.
[0032] Explanation of icon numbers:
[0033] 10. Base; 20. Lifting assembly; 21. Fixing component; 22. Internal threaded rod; 23. Slide table; 24. Drive component; 25. Protective cover; 30. Positioning assembly; 31. Laser instrument; 32. Metering plate.
[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0036] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0038] This utility model proposes a chassis height measuring device.
[0039] Please see Figure 1 In one embodiment of the present invention, the chassis height measuring device includes a base 10, a lifting assembly 20, a positioning assembly 30, and a detection element. The lifting assembly 20 is disposed on the base 10. The positioning assembly 30 is movably disposed on the lifting assembly 20 and is used to detect the lowest point of the object to be measured. The detection element is disposed on one side of the lifting assembly 20 and is used to detect the height of the positioning assembly 30 on the lifting assembly 20.
[0040] In this embodiment, the base 10 can adopt a flat plate structure, and the base 10 is placed on the support surface to provide support. The area of the base 10 can be increased as much as possible according to the needs.
[0041] The lifting assembly 20 is vertically mounted on the base 10. A driving positioning assembly 30 moves up and down on the lifting assembly 20 to locate the lowest point on the object being tested. In this embodiment, a car is used as an example. Specifically, the positioning assembly 30 is moved to its initial position, which is the bottom of the lifting assembly 20. After reaching the initial position, the driving positioning assembly 30 is slowly moved upwards along the lifting assembly 20 until it is level with the lowest point of the object being tested.
[0042] It should be noted that, in order to determine whether the positioning component 30 is flush with the lowest point of the object under test, a plate-shaped contact can be installed on the positioning component 30. Before measurement, the contact is inserted into the bottom of the object under test and connected to the positioning component 30. Thus, when the positioning component 30 rises, it drives the contact to rise, and the device touches the lowest point of the object under test. Alternatively, the positioning component 30 can also be a laser instrument 31, which can be used for detection by laser.
[0043] Once the lowest point of the object under test is determined, the distance between the lowest point of the object under test and the support surface is indirectly obtained by measuring the distance between the positioning component 30 and the support surface.
[0044] In this embodiment, the detection component can be a ruler, which is placed close to one side of the lifting assembly 20 for easy reading by on-site personnel. Alternatively, an electronic ruler can be used to automatically identify the travel distance, further improving the level of automation.
[0045] The technical solution of this utility model places both the base 10 and the object to be tested on the support surface. The lowest point of the object is found by moving the positioning component 30 up and down on the lifting component 20. Once the lowest point of the object is determined, the distance from the lowest point of the object to the support surface can be directly obtained through the detection component. This eliminates the need for the person measuring to lie down and avoids direct contact with the object, reducing the risk of damage.
[0046] In another embodiment, the positioning component 30 in this embodiment uses a laser device 31. Please refer to... Figure 2 Specifically, the positioning component 30 includes a laser instrument 31 and a light metering plate 32. The laser instrument 31 is vertically and vertically mounted on the lifting component 20. The light metering plate 32 is disposed on one side of the base 10 to form a detection area for accommodating the object to be tested between the laser instrument 31 and the light metering plate 32. The detection direction of the laser instrument 31 is towards the light metering plate 32.
[0047] During measurement, move the laser meter 31 to the left of the object to be measured and place the photometer plate 32 on the right side of the object. After turning on the laser meter 31, please refer to [link / reference needed]. Figure 3 The laser device 31 is used to emit a straight laser beam that extends parallel to the horizontal direction, and the straight laser beam emitted by the laser device 31 illuminates the photometer plate 32 on the opposite side.
[0048] Drive the laser instrument 31 to rise. Once the laser instrument 31 reaches a position level with the lowest point of the object under test, please refer to... Figure 4 The straight laser beam will be blocked by the lowest point, resulting in a break in a certain part of the straight laser beam on the opposite light metering plate 32.
[0049] Therefore, when the linear laser on the light meter plate 32 breaks off, it can be determined that the laser instrument 31 is level with the lowest point on the object to be measured.
[0050] It is understandable that the object under test may have multiple lowest points of the same height. Therefore, when one or multiple breakpoints are generated on the straight laser, it can be determined that the laser instrument 31 is level with the lowest point of the object under test.
[0051] In another embodiment, the lifting assembly 20 includes a fixing member 21, an internally threaded rod 22, a slide frame 23, and a driving member 24. The fixing member 21 is disposed on the base 10. The bottom of the internally threaded rod 22 is rotatably disposed on the fixing member 21, and the top of the internally threaded rod 22 extends away from the base 10. The slide frame 23 is disposed on the internally threaded rod 22, and the positioning assembly 30 is disposed on the slide frame 23. The driving member 24 is disposed on the top of the internally threaded rod 22 to drive the internally threaded rod 22 to rotate.
[0052] The fastener 21 and the base 10 can be integrally molded to improve overall stability.
[0053] The fixing member 21 has a through hole, and the internally threaded rod 22 passes through the through hole of the fixing member 21, so that the internally threaded rod 22 can rotate within the fixing member 21. The top of the internally threaded rod 22 extends vertically upward. A driving member 24 is provided at the top of the internally threaded rod 22, which drives the internally threaded rod 22 to rotate. During the rotation, the internally threaded rod 22 can convert the rotational motion into the linear motion of the slide frame 23. This causes the slide frame 23 to move along the extension direction of the internally threaded rod 22.
[0054] The slide frame 23 is L-shaped, with one side wall connected and fixed to the internal threaded rod 22, and the other side wall used to place the laser device 31 to ensure the stability of the laser device 31 during the lifting and moving process of the slide frame 23.
[0055] In one embodiment, the drive component 24 can be a hand crank, such as a circular hand crank, which the operator can manually rotate to drive the internal threaded rod 22 to rotate. In another embodiment, the drive component 24 can also be a drive motor, with the drive shaft of the drive motor connected to the internal threaded rod 22. Remote control can be achieved using a controller, and precise control of the stroke can be achieved through the control of the drive motor, thereby improving the measurement results.
[0056] In addition, as another implementation of this embodiment, both driving methods can be retained at the same time. That is, when the drive motor cannot be used normally, the operator can also manually measure by hand crank, thus improving compatibility.
[0057] In another embodiment, the lifting assembly 20 further includes a protective cover 25, which is fitted onto the internally threaded rod 22. The protective cover 25 is cylindrical with a hollow interior. It is fitted onto the internally threaded rod 22 to protect it from dust and dirt that could affect measurement accuracy.
[0058] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A chassis height measuring device, characterized in that, The chassis height measuring device includes: Base; A lifting assembly, wherein the lifting assembly is mounted on the base; A positioning component is movably mounted on the lifting component, and the positioning component is used to detect the lowest point of the object to be measured. A detection element is disposed on one side of the lifting assembly, and the detection element is used to detect the height of the positioning assembly on the lifting assembly.
2. The chassis height measuring device as described in claim 1, characterized in that, The positioning component includes: A laser device, wherein the laser device is vertically and vertically mounted on the lifting assembly; A light meter plate is disposed on one side of the base to form a detection area for accommodating the object to be tested between the laser and the light meter plate, wherein the detection direction of the laser is toward the light meter plate.
3. The chassis height measuring device as described in claim 2, characterized in that, The laser instrument is used to emit a straight laser beam extending in a direction parallel to the horizontal, and the photometer plate is used to receive and display the straight laser beam emitted by the laser instrument. Specifically, the laser is driven to move upward along the lowest point of the lifting assembly until one or more breakpoints are formed on the straight laser on the photometer plate, thus determining that the laser is level with the lowest point of the object being measured.
4. The chassis height measuring device as described in claim 1, characterized in that, The lifting assembly includes: The fastener is disposed on the base; An internally threaded rod, the bottom of which is rotatably mounted on the fixing member, and the top of which extends toward the side opposite to the base; A slide frame, wherein the slide frame is mounted on the internally threaded rod, and the positioning assembly is mounted on the slide frame; A drive element is disposed at the top of the internally threaded rod to drive the internally threaded rod to rotate.
5. The chassis height measuring device as described in claim 4, characterized in that, The driving component is a hand crank.
6. The chassis height measuring device as described in claim 4, characterized in that, The slide frame is arranged in an "L" shape.
7. The chassis height measuring device as described in claim 4, characterized in that, The base and the fixing component are integrally formed.
8. The chassis height measuring device as described in claim 4, characterized in that, The lifting assembly also includes a drive motor, the drive shaft of which is connected to the top of the internal threaded rod.
9. The chassis height measuring device as described in claim 4, characterized in that, The testing component is a ruler, which is tightly fitted to the internally threaded rod.
10. The chassis height measuring device as described in claim 4, characterized in that, The lifting assembly also includes a protective cover, which is fitted onto the internally threaded rod.