Multi-point magnetic type car body deformation measuring scale
Patent Information
- Application Number
- CN202522698977.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-19
AI Technical Summary
Existing methods for measuring vehicle deformation are difficult to complete quickly and accurately at accident sites. Traditional measuring tapes are inefficient and susceptible to human interference, laser rangefinders are difficult to fix, and coordinate measuring machines are bulky and expensive, making them difficult to deploy quickly on-site.
A multi-point magnetic vehicle body deformation measuring ruler is designed. Through components such as a fixed sleeve, a sliding sleeve, a measuring scale, a sliding frame, a support rod, and a magnet, the measuring ruler achieves multi-point magnetic adaptive positioning and stable support on the vehicle body. Combined with a locking component and a screw pressing a circular plate, structural stability and reading accuracy are ensured.
It enables the rapid and stable deployment of the measuring ruler on the vehicle body, improves reading accuracy and repeatability, and meets the needs of rapid and accurate measurement at accident scenes.
Smart Images
Figure CN224933428U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of vehicle body deformation measurement technology, and in particular relates to a multi-point magnetic vehicle body deformation measuring ruler. Background Technology
[0002] In traffic accident investigations and vehicle repair assessments, especially after collisions involving heavy vehicles such as large buses and trucks, the vehicle body structure often undergoes complex and irregular plastic deformation. Accurate measurement of the deformation is crucial for damage assessment, repair plan development, and restoration of safety performance.
[0003] Current methods for measuring vehicle body deformation mainly rely on traditional methods such as measuring tapes, laser rangefinders, or coordinate measuring machines (CMMs). However, measuring tapes are inefficient, highly dependent on manual readings, and susceptible to subjective interference, making it difficult to guarantee data repeatability and accuracy. While laser rangefinders improve measurement accuracy, they have high requirements for the measurement points, making it difficult to stably fix and quickly establish measurement benchmarks on the irregularly deformed body of an accident vehicle. Although CMMs have micron-level accuracy, they are bulky, expensive, and require highly specialized operation, making them difficult to deploy quickly in repair shops or accident scenes.
[0004] Therefore, it is necessary to design a multi-point magnetic vehicle body deformation measuring ruler to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to overcome the shortcomings of existing vehicle body deformation measurement methods that are difficult to meet the needs of rapid and accurate measurement at accident sites, this utility model provides a multi-point magnetic vehicle body deformation measuring ruler.
[0006] This utility model is achieved through the following technical means: a multi-point magnetic vehicle body deformation measuring ruler, including a fixed sleeve, measuring scale and sliding sleeve. A first sliding sleeve is slidably arranged inside the fixed sleeve, and a second sliding sleeve is slidably arranged inside the first sliding sleeve. The upper surfaces of the fixed sleeve and the two sliding sleeves are provided with measuring scales. It also includes a sliding frame, a connecting cylinder, a locking component, a support rod and a magnet. A sliding frame is slidably arranged on the fixed sleeve and the two sliding sleeves. A connecting cylinder is fixedly connected to the bottom wall of the left end of the fixed sleeve and the bottom wall of the three sliding frames. A support rod is slidably inserted into each connecting cylinder. A magnet is embedded at the lower end of each support rod, and the bottom surface of the magnet is flush with the bottom surface of the support rod.
[0007] In a preferred embodiment of this utility model, a locking assembly is provided between the connecting cylinder and the support rod. The locking assembly includes a wedge block, a second spring, an L-shaped plate, and a guide rod. Each support rod has an annular groove at its upper end. Four guide rods arranged in a front-back and left-right direction are slidably disposed on each connecting cylinder. A wedge block is fixedly connected to the end of each guide rod. The wedge block extends into the connecting cylinder through a corresponding reserved opening and is inserted into the corresponding annular groove. A second spring is sleeved on the outside of each guide rod. The two ends of the second spring are respectively connected to the corresponding connecting cylinder and the corresponding wedge block. An L-shaped plate is fixedly connected to each wedge block.
[0008] In a preferred embodiment of this utility model, it further includes a screw and an extrusion plate. The right ends of the fixed sleeve and the first sliding sleeve are both threaded with screws. The rear ends of the two screws are respectively inserted into the fixed sleeve and the first sliding sleeve. An extrusion plate is fixedly connected to the rear end of each screw. The rear sidewall of the left extrusion plate is attached to the front sidewall of the first sliding sleeve, and the rear sidewall of the right extrusion plate is attached to the front sidewall of the second sliding sleeve.
[0009] In a preferred embodiment of this utility model, it further includes inclined plates, push frames, springs, and friction pads. Two inclined plates are symmetrically fixed inside each sliding frame. The top surface of the inclined plates is flush with the top surface of the sliding frame, and the inclined surfaces of the inclined plates are oriented with a lower front and a higher back. Push frames are slidably arranged between two adjacent inclined plates, and there are a total of three push frames. A friction pad is slidably arranged on the rod-shaped part of each push frame. The top surface of the friction pad is in contact with the bottom surface of the two adjacent inclined plates. The top surface of the friction pad is at the same horizontal height as the lowest point of the inclined surface of the inclined plate. Springs are sleeved on the rod-shaped part of each push frame. Springs are located inside the corresponding sliding frame, and the upper and lower ends of springs are respectively connected to the corresponding push frame and the corresponding friction pad.
[0010] In a preferred embodiment of the present invention, a knob is also included, with a knob fixedly connected to the front end of each screw.
[0011] In a preferred embodiment of the present invention, an annular inclined block frame is further included. An annular inclined block frame is slidably disposed on each connecting cylinder. Each annular inclined block frame has four inclined sides, which are aligned with the corresponding L-shaped plate.
[0012] In a preferred embodiment of this utility model, the measuring scales of the fixed sleeve and the two sliding sleeves are arranged continuously in the same direction.
[0013] In a preferred embodiment of this invention, the rear sidewalls of both extruded circular plates are covered with rubber sheets.
[0014] Beneficial effects: 1. By setting up a sliding frame, connecting cylinder, support rod and magnet, and with the help of locking components, the measuring ruler can achieve multi-point magnetic adaptive positioning on the vehicle body. The magnet can be firmly attached to the ferromagnetic reference area of the vehicle body, so that the measuring ruler can be quickly and stably deployed on the undeformed reference area of the vehicle body, improving on-site installation efficiency and facilitating the smooth progress of measurement operations.
[0015] 2. By setting a screw and a pressing plate, a reliable locking mechanism is achieved between the fixed sleeve and the two sliding sleeves, effectively preventing relative slippage between the fixed sleeve and the two sliding sleeves, ensuring the overall stability of the measuring scale, and thus improving reading accuracy and repeatability.
[0016] 3. By setting up an inclined plate, a pusher, a spring, and a friction pad, the fixed sleeve and the sliding frame on the two sliding sleeves are quickly positioned and released laterally. This ensures that the sliding frame is reliably fixed after being adjusted, thereby ensuring that the bottom end of the support rod is stably in contact with the undeformed reference area of the vehicle body, providing stable support for measurement and improving measurement repeatability. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This is a three-dimensional structural diagram of the fixed sleeve, sliding sleeve, and knob components of this utility model.
[0019] Figure 3 This is a partial sectional view of the fixing sleeve component of this utility model.
[0020] Figure 4 This is the first partial sectional view of the fixed sleeve and sliding frame components of this utility model.
[0021] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.
[0022] Figure 6 This is a second partial sectional view of the fixed sleeve and sliding frame components of this utility model.
[0023] Figure 7 This is a partial sectional view of the sliding frame and connecting cylinder components of this utility model.
[0024] Figure 8 This is a partial cross-sectional view of the friction pad component of this utility model.
[0025] Figure 9 This is a partial sectional view of the sliding frame and inclined plate components of this utility model.
[0026] Figure 10 This is a partial sectional view of the support rod and annular groove components of this utility model.
[0027] Reference numerals: 1. Fixed sleeve; 11. Measuring scale; 12. Sliding sleeve; 2. Knob; 21. Screw; 22. Extrusion plate; 3. Sliding frame; 31. Inclined plate; 32. Pushing frame; 33. Spring 1; 34. Friction pad; 35. Connecting cylinder; 4. Wedge block; 41. Spring 2; 42. L-shaped plate; 43. Annular inclined block frame; 44. Guide rod; 5. Support rod; 51. Magnet; 52. Annular groove. Detailed Implementation
[0028] Example: A multi-point magnetic vehicle body deformation measuring ruler, such as... Figures 1-7 , Figure 9 and Figure 10 As shown, the device includes a fixed sleeve 1, a measuring scale 11, and a sliding sleeve 12. A first sliding sleeve 12 is slidably disposed inside the fixed sleeve 1, and a second sliding sleeve 12 is slidably disposed inside the first sliding sleeve 12. Measuring scales 11 are provided on the upper surfaces of the fixed sleeve 1 and the two sliding sleeves 12. The measuring scales 11 of the fixed sleeve 1 and the two sliding sleeves 12 are continuously arranged in the same direction (e.g., the scale range of the fixed sleeve 1 is 1cm-100cm, the scale range of the first sliding sleeve 12 is 100cm-200cm, and the scale range of the second sliding sleeve 12 is...). The scale range is 200cm-300cm. The three measuring scales 11 are connected end to end to form a complete continuous scale covering 1cm-300cm. It also includes a sliding frame 3, a connecting tube 35, a locking component, a support rod 5 and a magnet 51. The fixed sleeve 1 and the two sliding sleeves 12 are all slidably provided with sliding frames 3. The bottom wall of the left end of the fixed sleeve 1 and the bottom wall of the three sliding frames 3 are all fixedly connected with connecting tubes 35. Each connecting tube 35 is slidably inserted with a support rod 5. The lower end of each support rod 5 is embedded with a magnet 51. The bottom surface of the magnet 51 is flush with the bottom surface of the support rod 5.
[0029] like Figures 5-7As shown, a locking assembly is provided between the connecting cylinder 35 and the support rod 5. The locking assembly includes a wedge block 4, a spring 41, an L-shaped plate 42, a guide rod 44, and an annular inclined block frame 43. Each support rod 5 has an annular groove 52 at its upper end. Four guide rods 44 arranged in a front-back and left-right direction are slidably disposed on each connecting cylinder 35. A wedge block 4 is fixedly connected to the end of each guide rod 44. The wedge block 4 extends into the connecting cylinder 35 through a corresponding reserved opening and is inserted into the corresponding annular groove 52. In step 2, the relative axial movement between the support rod 5 and the connecting cylinder 35 is restricted, and a reliable locking between the support rod 5 and the connecting cylinder 35 is achieved. Each guide rod 44 is externally fitted with a second spring 41. The two ends of the second spring 41 are respectively connected to the corresponding connecting cylinder 35 and the corresponding wedge block 4, providing a reset elastic force for the wedge block 4. An L-shaped plate 42 is fixedly connected to each wedge block 4. An annular inclined block frame 43 is slidably arranged on each connecting cylinder 35. Each annular inclined block frame 43 has four inclined sides, and the inclined sides are aligned with the corresponding L-shaped plate 42.
[0030] like Figures 1-3 As shown, it also includes a knob 2, a screw 21, and a pressing plate 22. Both the fixed sleeve 1 and the first sliding sleeve 12 have screws 21 threaded onto their right ends. The rear ends of the two screws 21 are respectively inserted into the fixed sleeve 1 and the first sliding sleeve 12. A knob 2 is fixedly connected to the front end of each screw 21, and a pressing plate 22 is fixedly connected to the rear end of each screw 21. The rear sidewall of the left pressing plate 22 is attached to the front sidewall of the first sliding sleeve 12. Through the friction between the left pressing plate 22 and the first sliding sleeve 12, the fixed sleeve 1 and the first sliding sleeve 1 are locked together. The relative positions between the cylinders 12 are such that the rear side wall of the right extrusion plate 22 is attached to the front side wall of the second sliding sleeve 12. The relative positions between the first and second sliding sleeves 12 are locked by the friction between the right extrusion plate 22 and the second sliding sleeve 12. The rear side walls of both extrusion plates 22 are covered with rubber sheets, which can increase the friction between the two extrusion plates 22 and the first and second sliding sleeves 12, and also prevent the two extrusion plates 22 from damaging the first and second sliding sleeves 12.
[0031] like Figure 1 , Figure 4 and Figures 6-9As shown, it also includes inclined plates 31, push frames 32, springs 33, and friction pads 34. Two inclined plates 31 are symmetrically fixedly connected inside each sliding frame 3. The top surface of the inclined plate 31 is flush with the top surface of the sliding frame 3, and the inclined surface of the inclined plate 31 slopes from front to back. A push frame 32 is slidably arranged between two adjacent inclined plates 31, for a total of three push frames 32. A friction pad 34 is slidably arranged on the rod-shaped portion of each push frame 32. The top surface of the friction pad 34 is in contact with the bottom surface of two adjacent inclined plates 31, and the top surface of the friction pad 34 is at the same horizontal level as the lowest point of the inclined surface of the inclined plate 31. Each pusher 32 has a spring 33 fitted on its rod-shaped part. The spring 33 is located inside the corresponding sliding frame 3, and the upper and lower ends of the spring 33 are respectively connected to the corresponding pusher 32 and the corresponding friction pad 34, providing a restoring elastic force for the friction pad 34. In the initial state, the spring 33 is in a stretched state, and the three friction pads 34 are respectively attached to the upper surfaces of the fixed sleeve 1 and the two sliding sleeves 12. Through the friction between the three friction pads 34 and the fixed sleeve 1 and the two sliding sleeves 12, the relative positions between the three sliding frames 3 and the fixed sleeve 1 and the two sliding sleeves 12 are locked.
[0032] In use, the operator first adjusts the total length of the measuring ruler according to the span of the deformation area of the vehicle body to be measured. Then, the two screws 21 are rotated clockwise (with the front side of the fixed sleeve 1 as the front view). This causes the left screw 21 to move the left extrusion plate 22 forward, disengaging it from the front wall of the first sliding sleeve 12. Similarly, the right screw 21 causes the right extrusion plate 22 to move forward, disengaging it from the front wall of the second sliding sleeve 12. This releases the locking between the fixed sleeve 1 and the two sliding sleeves 12. The first and second sliding sleeves 12 are then pulled out sequentially to the desired positions. After adjustment, the two screws 21 are rotated counterclockwise, causing the two extrusion plates 22 to move backward and re-attach and press against the front sides of the two sliding sleeves 12. The wall, relying on friction, reliably locks the relative position between the fixed sleeve 1 and the two sliding sleeves 12. Then, the support rod 5 is inserted into the connecting cylinder 35. During the insertion process, the outer wall of the support rod 5 pushes the wedge block 4 outward. The wedge block 4 simultaneously drives the guide rod 44 to move outward along the connecting cylinder 35, compressing the second spring 41. When the support rod 5 is inserted into place and the annular groove 52 is aligned with the wedge block 4, the second spring 41 returns to its original state, pushing the wedge block 4 inward to insert into the annular groove 52, thereby automatically locking the axial position of the support rod 5 and the connecting cylinder 35. Then, the three sliding frames 3 are laterally positioned, and the pusher frame 32 in each sliding frame 3 is pushed backward, causing the pusher frame 32 to drive the friction pad 34 to move backward. During this process, the friction pad 34 As the friction pad 34 gradually releases the pressure from the inclined plane 31, the spring 33 gradually returns to its original shape, pulling the friction pad 34 upward along the rod-shaped part of the push frame 32. At this time, the friction pad 34 disengages from the upper surface of the fixed sleeve 1, the first sliding sleeve 12, or the second sliding sleeve 12, releasing the relative position lock between the sliding frame 3 and the fixed sleeve 1, the first sliding sleeve 12, or the second sliding sleeve 12. This allows the sliding frame 3 to be moved left and right to a suitable position, aligning the support rod 5 with the undeformed reference area of the vehicle body. After alignment, the push frame 32 is pulled forward, causing the friction pad 34 to gradually slide downward under the pressure of the inclined plane 31. The spring 33 is stretched accordingly. When the push frame 32 returns to its original position, the friction pad 34 slides down to the appropriate position. The measuring rod 5 is placed and tightly fitted to the upper surface of the fixed sleeve 1, the first sliding sleeve 12, or the second sliding sleeve 12, locking the relative position between the sliding frame 3 and the fixed sleeve 1, the first sliding sleeve 12, or the second sliding sleeve 12. Then, the measuring rod is lowered so that the bottom end of the support rod 5 contacts the undeformed reference area of the vehicle body. At the same time, the magnet 51 is attracted to the undeformed reference area of the vehicle body, realizing the rapid deployment of the measuring rod. After deployment, the measurement operation can begin. When it is necessary to remove the support rod 5, simply push the annular inclined block frame 43 upward so that the inclined side of the annular inclined block frame 43 presses against the L-shaped plate 42, causing the L-shaped plate 42 to drive the wedge block 4 to move outward and disengage from the annular groove 52. At this time, the support rod 5 can be pulled out downward to complete the disassembly.
Claims
1. A multi-point magnetic vehicle body deformation measuring ruler, comprising a fixed sleeve (1), measuring scales (11), and sliding sleeves (12), wherein a first sliding sleeve (12) is slidably disposed inside the fixed sleeve (1), and a second sliding sleeve (12) is slidably disposed inside the first sliding sleeve (12), and measuring scales (11) are provided on the upper surfaces of the fixed sleeve (1) and the two sliding sleeves (12), characterized in that, It also includes a sliding frame (3), a connecting tube (35), a locking component, a support rod (5) and a magnet (51). The fixed sleeve (1) and the two sliding sleeves (12) are all slidably provided with sliding frames (3). The bottom wall of the left end of the fixed sleeve (1) and the bottom wall of the three sliding frames (3) are all fixedly connected with connecting tubes (35). Each connecting tube (35) is slidably inserted with a support rod (5). Each support rod (5) has a magnet (51) embedded at the lower end. The bottom surface of the magnet (51) is flush with the bottom surface of the support rod (5).
2. The multi-point magnetic vehicle body deformation measuring ruler according to claim 1, characterized in that, A locking assembly is provided between the connecting cylinder (35) and the support rod (5). The locking assembly includes a wedge block (4), a second spring (41), an L-shaped plate (42), and a guide rod (44). Each support rod (5) has an annular groove (52) at its upper end. Each connecting cylinder (35) has four guide rods (44) arranged in the front-back and left-right directions. Each guide rod (44) has a wedge block (4) fixed at its end. The wedge block (4) extends into the connecting cylinder (35) through the corresponding reserved opening and is inserted into the corresponding annular groove (52). Each guide rod (44) has a second spring (41) sleeved on its outside. The two ends of the second spring (41) are respectively connected to the corresponding connecting cylinder (35) and the corresponding wedge block (4). Each wedge block (4) has an L-shaped plate (42) fixed on it.
3. The multi-point magnetic vehicle body deformation measuring ruler according to claim 2, characterized in that, It also includes a screw (21) and an extrusion plate (22). The right ends of the fixed sleeve (1) and the first sliding sleeve (12) are threaded with screws (21). The rear ends of the two screws (21) are respectively inserted into the fixed sleeve (1) and the first sliding sleeve (12). The rear end of each screw (21) is fixed with an extrusion plate (22). The rear side wall of the left extrusion plate (22) is attached to the front side wall of the first sliding sleeve (12), and the rear side wall of the right extrusion plate (22) is attached to the front side wall of the second sliding sleeve (12).
4. A multi-point magnetic vehicle body deformation measuring ruler according to claim 3, characterized in that, It also includes inclined plates (31), push frames (32), springs (33) and friction pads (34). Two inclined plates (31) are symmetrically fixed inside each sliding frame (3). The top surface of the inclined plate (31) is flush with the top surface of the sliding frame (3), and the inclined surface of the inclined plate (31) is lower in the front and higher in the back. Push frames (32) are slidably arranged between two adjacent inclined plates (31), and there are three push frames (32) in total. A friction pad (34) is slidably arranged on the rod-shaped part of each push frame (32). The top surface of the friction pad (34) is in contact with the bottom surface of two adjacent inclined plates (31). The top surface of the friction pad (34) is at the same horizontal height as the lowest point of the inclined surface of the inclined plate (31). Springs (33) are sleeved on the rod-shaped part of each push frame (32). Springs (33) are located inside the corresponding sliding frame (3), and the upper and lower ends of springs (33) are connected to the corresponding push frame (32) and the corresponding friction pad (34) respectively.
5. A multi-point magnetic vehicle body deformation measuring ruler according to claim 4, characterized in that, It also includes a knob (2), with a knob (2) fixed to the front end of each screw (21).
6. A multi-point magnetic vehicle body deformation measuring ruler according to claim 5, characterized in that, It also includes an annular inclined block frame (43), on which an annular inclined block frame (43) is slidably arranged. Each annular inclined block frame (43) has four inclined sides, which are aligned with the corresponding L-shaped plate (42).
7. A multi-point magnetic vehicle body deformation measuring ruler according to claim 6, characterized in that, The measuring scales (11) of the fixed sleeve (1) and the two sliding sleeves (12) are arranged continuously in the same direction.
8. A multi-point magnetic vehicle body deformation measuring ruler according to claim 7, characterized in that, The rear sidewalls of both extruded circular plates (22) are covered with rubber sheets.