Movable test graphic card lifting device

Abstract

The utility model discloses a movable test graphic card lifting device. The movable test graphic card lifting device comprises a base, a lifting assembly and a fastening assembly, the lifting assembly comprises a sliding sleeve and a sliding rod, the sliding sleeve is arranged on the base, the sliding rod is inserted into the sliding sleeve in a sliding mode, and a test graphic card can be placed on the top of the sliding rod; the fastening assembly comprises a fastening bolt, a threaded through hole is formed in the top of the sliding sleeve, and the fastening bolt is in threaded connection with the threaded through hole and can abut against the sliding rod. By using the movable test graphic card lifting device, the height of the test graphic card can be adjusted, so that the movable test graphic card lifting device is suitable for performance tests of vehicle-mounted video driving recording systems of different vehicle types or scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of test card, and particularly to a movable test card lifting device. BACKGROUND

[0002] The vehicle-mounted video driving record system can not only record the video information in the vehicle driving process, but also provide an important basis for the responsibility identification of traffic accidents. In order to ensure that the performance of the vehicle-mounted video driving record system meets the requirements of relevant regulations, GB / T 38892-2020 "Vehicle-mounted Video Driving Record System" standard clearly stipulates the field of view range of the vehicle-mounted video driving record system, and describes in detail the performance requirements of the system in the vertical field of view range, including the identification ability of the test card information at different distances and heights.

[0003] The current test method has some inconvenience in actual operation. The existing test equipment is usually fixed at a specific position, and the placement or suspension of the test card needs to be accurately controlled in height. The test equipment fixed at a specific position cannot flexibly adapt to the needs of different vehicle models and test environments, limiting the universality and convenience of the test. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model provides a movable test card lifting device that can adjust the height of the test card to adapt to different vehicle models and environmental tests.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a movable test card lifting device, comprising a base, a lifting assembly and a fastening assembly;

[0006] The lifting assembly comprises a sliding sleeve and a sliding rod, the sliding sleeve is arranged on the base, the sliding rod is slidingly inserted into the sliding sleeve, and the top of the sliding rod can place the test card;

[0007] The fastening assembly comprises a fastening bolt, the top of the sliding sleeve is provided with a threaded hole, the fastening bolt is threadedly connected with the threaded hole, and can abut against the sliding rod.

[0008] Place the test card on the top of the sliding rod. Adjust the height of the test card by moving the sliding rod up and down in the sliding sleeve. After adjusting to the required height for testing, turn the fastening bolt so that it abuts against the surface of the sliding rod and is tightly pressed, thereby fixing the sliding rod, and the test can begin.

[0009] The movable test card lifting device has the beneficial effects that the height of the test card can be adjusted, thereby being suitable for performance testing of the vehicle-mounted video driving record system under different vehicle models or scenes.

[0010] Further, the base is a U-shaped structure, both ends are arranged downward, and the bottom of both ends is provided with a moving wheel.

[0011] The device can be moved as a whole by the moving wheel to place the test card in a suitable position and adjust the distance between the test card and the system to be tested.

[0012] Further, a slot is formed in the middle bottom surface of the base, and the test card two can be inserted into the slot.

[0013] The test card two at the bottom is used to simulate a license plate, and the height of the test card two can be adjusted by sliding in the slot.

[0014] Further, the lifting assembly further comprises a sliding sleeve two, which is fixedly arranged on the base, the sliding sleeve is slidingly inserted into the sliding sleeve two, and the top of the sliding sleeve two is also provided with a threaded hole, and a fastening bolt capable of abutting the sliding sleeve is threadedly connected.

[0015] By moving the sliding rod in the sliding sleeve and the sliding sleeve in the sliding sleeve two, a three-section telescopic structure can be formed, thereby increasing the adjustable height distance to further increase the application range of the test.

[0016] Further, the surface of the sliding rod and the sliding sleeve is provided with a scale line in the axial direction.

[0017] The scale line can better help the user to observe the height of the lifting assembly.

[0018] Further, the top of the sliding rod is provided with a placement platform, and the surface of the placement platform is provided with a guide sliding groove, and the test card can be inserted and slid in the guide sliding groove.

[0019] The guide sliding groove is used for the insertion and sliding of the test card, so that the test card can stand on the placement platform, thereby facilitating the identification of the vehicle-mounted video driving record system.

[0020] Further, the fastening assembly further comprises a fastening bolt two, the side surface of the placement platform is provided with a threaded hole two communicating with the guide sliding groove, the fastening bolt two is threadedly connected with the threaded hole two, and can abut the test card.

[0021] After sliding the test card in the guide sliding groove to a suitable position, the fastening bolt two can be screwed to abut the bottom of the test card, thereby fixing the test card to ensure the accuracy of the test.

[0022] Further, a horizontal adjustment assembly is further included, which comprises a pull rope and a rotating wheel, one end of the pull rope is connected with the sliding rod, the rotating wheel is rotatably arranged on the base, and the other end of the pull rope is arranged on the rotating wheel.

[0023] After long time of use, gap and looseness will appear between the slide rod and the slide sleeve due to abrasion, the slide rod can be pulled by rotating the rotating wheel and pulling the rope, so as to keep the slide rod vertical to the ground.

[0024] Further, the horizontal adjusting assembly further comprises a sleeve ring, an annular groove is formed around the surface of the slide rod, and the sleeve ring is sleeved in the annular groove, and the rope is connected with the sleeve ring.

[0025] According to the position of the abrasion, the slide rod can be rotated relative to the sleeve ring to adjust the pulling direction of the rope, so as to ensure that the slide rod can be pulled to be vertical to the ground. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present application, the drawings used in the specific embodiments will be briefly introduced. In all the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0027] Figure 1 The front view of the movable test card lifting device provided by an embodiment of the present application is shown in the figure.

[0028] Figure 2 The front view of the movable test card lifting device provided by another embodiment of the present application is shown in the figure.

[0029] Reference signs:

[0030] 1-Test card, 2-Test card two;

[0031] 10-Base, 11-Moving wheel, 12-Slot;

[0032] 20-Lifting assembly, 21-Slide sleeve, 22-Slide rod, 23-Slide sleeve two, 24-Placing platform, 241-Guide sliding groove;

[0033] 30-Fastening assembly, 31-Fastening bolt, 32-Fastening bolt two;

[0034] 40-Horizontal adjusting assembly, 41-Rope, 42-Rotating wheel, 43-Sleeve ring. DETAILED DESCRIPTION

[0035] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0036] Please refer to Figure 1The utility model provides a movable test picture card lifting device, including base 10, lifting assembly 20 and fastening assembly 30, base 10 is used for bearing device, the height position of test picture card 1 is adjusted through lifting assembly 20 again, then is fixed through fastening assembly 30.

[0037] Specifically, lifting assembly 20 includes sliding sleeve 21 and slide rod 22, sliding sleeve 21 is arranged on base 10, slide rod 22 is slidably inserted in sliding sleeve 21, and the top can place test picture card 1. Fastening assembly 30 includes fastening bolt 31, the top side of sliding sleeve 21 is provided with the threaded hole of communicating inside, fastening bolt 31 is connected with the threaded hole in screw thread, and can be in abutment with slide rod 22.

[0038] Test picture card 1 is used for simulating road traffic sign and signal lamp, etc., is placed in the top of slide rod 22, and moves up and down in sliding sleeve 21 through slide rod 22, i.e. the height of test picture card can be adjusted, and after adjusting to the height required for testing, fastening bolt 31 is screwed and is in abutment on the surface of slide rod 22 and is tightly pressed, so as to complete the fixation of slide rod 22, i.e. the identification test of test picture card 1 by vehicle-mounted video driving record system can start. By adjusting the height of test picture card 1, it can be applicable to the test under different vehicle types or scenes.

[0039] Specifically, base 10 is shaped structure, both ends are arranged downward, and the bottom of both ends is provided with movable wheel 11. Movable wheel 11 can be used to move the whole device to select the appropriate position to place test picture card and adjust the distance between test picture card and vehicle-mounted video driving record system. In the embodiment, movable wheel 11 can select the model with locking function commonly seen in the market, to ensure that it is locked after moving to the appropriate position, to avoid moving.

[0040] The middle bottom surface of base 10 is also provided with slot 12, and test picture card two 2 can be inserted. Test picture card two 2 is used for simulating the number plate of a vehicle, and has a large friction force between the slot 12, and can maintain the current height after sliding to the appropriate position, i.e. can be used for identification of vehicle-mounted video driving record system.

[0041] Specifically, lifting assembly 20 further includes sliding sleeve two 23, sliding sleeve two 23 is fixedly arranged on base 10, sliding sleeve 21 is slidably inserted in sliding sleeve two 23, and the top of sliding sleeve two 23 is also provided with threaded hole, and fastening bolt 31 that can be in abutment with sliding sleeve 21 is connected in screw thread, and the surface of slide rod 22 and sliding sleeve 21 can also be provided with scale along the axial direction.

[0042] By moving the slide rod 22 in the slide sleeve 21, the slide sleeve 21 moves in the slide sleeve 23, and a three-section telescopic structure can be formed, thereby increasing the adjustable range of the height and further increasing the applicable range of the test. In addition, if a scale line is provided, it can help the user to better observe the height of the lifting assembly 20, thereby improving the accuracy of the test.

[0043] Specifically, the top of the slide rod 22 is provided with a placement platform 24, and the surface of the placement platform 24 is provided with a guide sliding groove 241. The test chart 1 can be inserted into the guide sliding groove 241 and slid therein. The fastening assembly 30 further comprises a fastening bolt 32. The side surface of the placement platform 24 is provided with a threaded through hole 2 communicating with the guide sliding groove 241. The fastening bolt 32 is threadedly connected with the threaded through hole 2 and can abut against the test chart 1.

[0044] The guide sliding groove 241 can be used for the insertion and sliding of the test chart 1, so that the test chart 1 can stand on the placement platform 24, thereby facilitating the identification of the vehicle-mounted video driving record system. After the test chart is slid to a suitable position, the fastening bolt 32 can be screwed to abut against the bottom of the test chart 1, thereby fixing the test chart, so as to ensure the accuracy of the test.

[0045] Specifically, in another embodiment, a horizontal adjustment assembly 40 is further included. The horizontal adjustment assembly 40 comprises a pull rope 41 and a rotating wheel 42. One end of the pull rope 41 is connected with the slide rod 22. The rotating wheel 42 is rotatably arranged on the base and is provided with a hand crank. The other end of the pull rope 41 is arranged on the rotating wheel 42. After a long time of use, gaps and looseness may occur between the slide rod and the slide sleeve due to wear. The rotating wheel 42 can be rotated by the hand crank, so that the pull rope 41 pulls the slide rod 22, thereby maintaining the verticality of the slide rod with the ground.

[0046] In the embodiment, the horizontal adjustment assembly 40 further comprises a sleeve ring 43. An annular groove is circumferentially formed in the surface of the slide rod 22. The sleeve ring 43 is slidably sleeved in the annular groove and can rotate relative to the sleeve ring 43. The pull rope 41 is connected with the sleeve ring 43. According to the different positions of wear, the slide rod 22 can be rotated relative to the sleeve ring 43, so as to adjust the pulling direction of the pull rope 41, thereby ensuring that the slide rod can be pulled to be vertical to the ground.

[0047] The working principle of the above-described movable test chart lifting device is as follows. The device is moved to a specified position. The test chart 1 is inserted into the guide sliding groove 241 of the placement platform 24 and is fixed by the fastening bolt 32. The test chart 2 is inserted into the insertion slot 12 of the base 10. The height of the placement platform 24 is adjusted by the slide rod 22 and the slide sleeve 21, and is fixed by the fastening bolt 31. Then, the identification test of the test chart by the vehicle-mounted video driving record system can be started.

[0048] The movable test chart lifting device can adjust the height of the test chart, has a large adjustment range, and can be suitable for performance test of the vehicle-mounted video driving record system under different vehicle models or scenes.

[0049] The above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A mobile test chart lifting device, characterized by: The base, the lifting assembly and the fastening assembly are included. The lifting assembly includes a sliding sleeve and a sliding rod, the sliding sleeve is arranged on the base, the sliding rod is slidingly inserted into the sliding sleeve, and the top of the sliding rod can place the test card. The fastening assembly includes a fastening bolt, the top of the sliding sleeve is provided with a threaded through hole, the fastening bolt is threadedly connected with the threaded through hole, and the fastening bolt can abut against the sliding rod.

2. The mobile test chart hoist of claim 1, wherein: The base is a U-shaped structure, the two ends are downwardly arranged, and the bottom of each end is provided with a moving wheel.

3. The mobile test chart hoist of claim 2, wherein: The middle bottom surface of the base is provided with a slot, and the slot can insert the test card II.

4. The mobile test chart hoist of claim 1, wherein: The lifting assembly further includes a sliding sleeve II, the sliding sleeve II is fixedly arranged on the base, the sliding sleeve is slidingly inserted into the sliding sleeve II, the top of the sliding sleeve II is also provided with a threaded through hole, and the threaded through hole is threadedly connected with a fastening bolt capable of abutting against the sliding sleeve.

5. The mobile test chart hoist of claim 4, wherein: The surfaces of the sliding rod and the sliding sleeve are both provided with scale lines in the axial direction.

6. The mobile test chart lift of claim 1, wherein: The top of the sliding rod is provided with a placing platform, the surface of the placing platform is provided with a guide sliding groove, and the test card can be inserted into and slidingly arranged in the guide sliding groove.

7. The mobile test chart hoist of claim 6, wherein: The fastening assembly further includes a fastening bolt II, the side surface of the placing platform is provided with a threaded through hole II communicating with the guide sliding groove, the fastening bolt II is threadedly connected with the threaded through hole II, and the fastening bolt II can abut against the test card.

8. The mobile test chart hoist of claim 1, wherein: The horizontal adjusting assembly includes a pull rope and a rotating wheel, one end of the pull rope is connected with the sliding rod, the rotating wheel is rotatably arranged on the base, and the other end of the pull rope is arranged on the rotating wheel.

9. The mobile test chart hoist of claim 8, wherein: The horizontal adjusting assembly further includes a sleeve ring, the surface of the sliding rod is circumferentially provided with an annular groove, the sleeve ring is slidingly sleeved in the annular groove, and the pull rope is connected with the sleeve ring.

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